/* ==============================================================
   CYANIX AI — style.css v18 (Massive UI Overhaul)
   Design: Neon-Lofi Cyberpunk · liquid glass · deep space depth
   Fonts: Clash Display · Space Mono · Cabinet Grotesk
============================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Mono:ital,wght@0,400;0,700;1,400&display=swap');
@import url('https://api.fontshare.com/v2/css?f[]=cabinet-grotesk@400,500,600,700,800&f[]=clash-display@400,500,600,700&display=swap');

/* -- Reset -------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
button {
  font: inherit; cursor: pointer; border: none; background: none;
  color: inherit; -webkit-appearance: none; appearance: none;
  transition: transform .18s var(--ease-spring), box-shadow .18s var(--ease), background .15s var(--ease), color .15s var(--ease);
}
button:active { transform: scale(0.94); }
input, textarea, select {
  font: inherit; color: inherit;
  background: transparent; -webkit-appearance: none; appearance: none;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* -- Design tokens ------------------------------------------ */
:root {
  /* Core accent palette — electric cyan */
  --accent:       #00e5ff;
  --accent-dim:   #00b8cc;
  --accent-glow:  rgba(0,229,255,0.22);
  --accent-soft:  rgba(0,229,255,0.08);
  --accent-mid:   rgba(0,229,255,0.16);
  --accent-high:  rgba(0,229,255,0.32);

  /* Secondary: violet pulse */
  --violet:       #7c3aed;
  --violet-glow:  rgba(124,58,237,0.22);
  --violet-soft:  rgba(124,58,237,0.08);

  /* Tertiary: neon rose */
  --rose:         #ff2d78;
  --rose-glow:    rgba(255,45,120,0.18);

  /* Emerald for success */
  --green:        #00ffa3;
  --green-bg:     rgba(0,255,163,0.08);
  --green-text:   #00cc82;

  /* Surfaces — deep space */
  --bg:        #050810;
  --surface:   #090d1a;
  --surface-2: #0d1220;
  --surface-3: #111828;
  --surface-4: #161f30;
  --border:    rgba(0,229,255,0.08);
  --border-2:  rgba(0,229,255,0.16);
  --border-3:  rgba(0,229,255,0.28);

  /* Text */
  --text-1: #e8f0ff;
  --text-2: #b0c4e8;
  --text-3: #6278a0;
  --text-4: #3a4d70;
  --text-inv: #050810;

  /* State colors */
  --red:    #ff3b5c;
  --red-bg: rgba(255,59,92,0.10);
  --blue:   var(--accent);

  /* Compat aliases */
  --blue-50:   var(--accent-soft);
  --blue-100:  var(--accent-mid);
  --blue-200:  var(--accent-high);
  --blue-400:  var(--accent);
  --blue-500:  var(--accent);
  --blue-600:  var(--accent-dim);
  --blue-700:  var(--accent-dim);
  --blue-dark: var(--accent-dim);
  --blue-glow: var(--accent-glow);
  --purple:    var(--violet);

  /* Layout */
  --sidebar-w: 240px; --topbar-h: 52px; --msg-max: 760px;

  /* Typography */
  --font:       'Cabinet Grotesk', 'DM Sans', system-ui, -apple-system, sans-serif;
  --font-brand: 'Clash Display', 'Cabinet Grotesk', system-ui, sans-serif;
  --font-mono:  'Space Mono', 'JetBrains Mono', monospace;

  /* Radius */
  --r-xs: 4px; --r-sm: 7px; --r: 11px;
  --r-lg: 16px; --r-xl: 22px; --r-2xl: 28px; --r-full: 9999px;

  /* Shadows — neon depth */
  --sh-xs:   0 1px 3px rgba(0,0,0,.6);
  --sh-sm:   0 2px 8px rgba(0,0,0,.5), 0 1px 3px rgba(0,0,0,.4);
  --sh:      0 4px 16px rgba(0,0,0,.55), 0 2px 6px rgba(0,0,0,.4);
  --sh-lg:   0 12px 40px rgba(0,0,0,.65), 0 4px 14px rgba(0,0,0,.45);
  --sh-xl:   0 24px 72px rgba(0,0,0,.75), 0 8px 24px rgba(0,0,0,.5);
  --sh-accent: 0 0 0 1px var(--border-2), 0 4px 24px var(--accent-glow), 0 2px 8px rgba(0,0,0,.5);
  --sh-blue: 0 4px 24px var(--accent-glow), 0 2px 8px rgba(0,0,0,.5);

  /* Motion */
  --ease:        cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-spring: cubic-bezier(0.34, 1.48, 0.64, 1);
  --ease-out:    cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast: 130ms; --dur: 210ms; --dur-slow: 320ms; --dur-slower: 480ms;

  /* Glass */
  --glass-bg:     rgba(9,13,26,0.82);
  --glass-border: rgba(0,229,255,0.10);
  --glass-blur:   blur(24px) saturate(160%);

  /* Gradients */
  --grad-accent:  linear-gradient(135deg, #00e5ff, #7c3aed);
  --grad-surface: linear-gradient(160deg, rgba(0,229,255,0.04) 0%, rgba(124,58,237,0.03) 50%, transparent 100%);
  --grad-glow:    radial-gradient(ellipse at 50% 0%, rgba(0,229,255,0.12) 0%, transparent 65%);
}

/* ─── Light theme (legacy) ──────────────────────────────── */
[data-theme="light"] {
  --bg:#f0f4f9; --surface:#ffffff; --surface-2:#f4f7fc; --surface-3:#edf1f8; --surface-4:#e8edf8;
  --border:rgba(37,99,235,.10); --border-2:rgba(37,99,235,.20); --border-3:rgba(37,99,235,.35);
  --text-1:#0a1628; --text-2:#1e3a6e; --text-3:#4a6a9a; --text-4:#8a9ec0;
  --accent:#2563eb; --accent-dim:#1d4ed8; --accent-glow:rgba(37,99,235,0.18);
  --accent-soft:rgba(37,99,235,0.06); --accent-mid:rgba(37,99,235,0.14); --accent-high:rgba(37,99,235,0.28);
  --violet:#7c3aed; --rose:#e11d48; --green:#16a34a; --green-bg:rgba(22,163,74,.08);
  --glass-bg:rgba(255,255,255,0.88); --glass-border:rgba(37,99,235,0.12);
  --sh-xs:0 1px 2px rgba(0,0,0,.04); --sh-sm:0 2px 8px rgba(0,0,0,.06);
  --sh:0 4px 16px rgba(0,0,0,.08); --sh-lg:0 12px 40px rgba(0,0,0,.10);
  --sh-xl:0 24px 72px rgba(0,0,0,.12); --sh-blue:0 4px 24px rgba(37,99,235,.28);
  --sh-accent:0 0 0 1px rgba(37,99,235,.20), 0 4px 20px rgba(37,99,235,.18);
  --grad-accent:linear-gradient(135deg, #2563eb, #7c3aed);
  --grad-surface:linear-gradient(160deg, rgba(37,99,235,.04) 0%, rgba(124,58,237,.02) 50%, transparent 100%);
  --grad-glow:radial-gradient(ellipse at 50% 0%, rgba(37,99,235,.08) 0%, transparent 65%);
}

/* ─── Dark theme ─────────────────────────────────────────── */
[data-theme="dark"] {
  --bg:#0a0e1a; --surface:#10162a; --surface-2:#131c32; --surface-3:#182038; --surface-4:#1d2640;
  --border:rgba(0,229,255,.07); --border-2:rgba(0,229,255,.14); --border-3:rgba(0,229,255,.26);
  --text-1:#dce8ff; --text-2:#9db5d8; --text-3:#5a6e92; --text-4:#374762;
  --glass-bg:rgba(16,22,42,0.88);
}
[data-theme="dark"] .msg-row:not(.user) .msg-bubble { background: transparent; color: var(--text-1); }
[data-theme="dark"] .composer-box { background: rgba(10,14,26,0.85); backdrop-filter: var(--glass-blur); }
[data-theme="dark"] .topbar { background: rgba(10,14,26,0.92); backdrop-filter: var(--glass-blur); }
[data-theme="dark"] .sidebar { background: rgba(13,18,32,0.96); }

/* ─── Founder theme ──────────────────────────────────────── */
[data-theme="founder"] {
  --bg:#050a14; --surface:#0a1628; --surface-2:#0d1e35; --surface-3:#112442; --surface-4:#16294a;
  --border:rgba(0,229,255,.08); --border-2:rgba(0,229,255,.16);
  --text-1:#e0f0ff; --text-2:#90b8e0; --text-3:#4a7aaa; --text-4:#2a4a6a;
  --accent:#00e5ff; --glass-bg:rgba(10,22,40,0.90);
}

/* ─── Neon theme ─────────────────────────────────────────── */
[data-theme="neon"] {
  --bg:#08001a; --surface:#0f002a; --surface-2:#13003a; --surface-3:#18004a; --surface-4:#1f0058;
  --border:rgba(200,64,255,.08); --border-2:rgba(200,64,255,.18); --border-3:rgba(200,64,255,.32);
  --text-1:#f0e0ff; --text-2:#c090e8; --text-3:#8040b0; --text-4:#4a1870;
  --accent:#c840ff; --accent-dim:#a020d0; --accent-glow:rgba(200,64,255,0.24);
  --accent-soft:rgba(200,64,255,.08); --accent-mid:rgba(200,64,255,.16); --accent-high:rgba(200,64,255,.30);
  --violet:#00e5ff; --rose:#ff2d78;
  --sh-blue:0 4px 24px rgba(200,64,255,.40);
  --sh-accent:0 0 0 1px rgba(200,64,255,.20), 0 4px 24px rgba(200,64,255,.30);
  --glass-bg:rgba(8,0,26,0.90); --glass-border:rgba(200,64,255,0.12);
  --grad-accent:linear-gradient(135deg, #c840ff, #ff2d78);
}
[data-theme="neon"] .auth-btn,
[data-theme="neon"] .send-btn { background: linear-gradient(135deg, #8000c0, #c840ff); }
[data-theme="neon"] .welcome-heading { background: linear-gradient(135deg, #c840ff, #ff40c0); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
[data-theme="neon"] .supporter-badge { background: rgba(200,64,255,.15); border-color: rgba(200,64,255,.4); color: #c840ff; }
[data-theme="neon"] .composer-box { background: rgba(8,0,26,0.88); backdrop-filter: var(--glass-blur); }
[data-theme="neon"] .topbar { background: rgba(8,0,26,0.94); backdrop-filter: var(--glass-blur); }

/* ─── Midnight theme ─────────────────────────────────────── */
[data-theme="midnight"] {
  --bg:#060810; --surface:#0c1018; --surface-2:#101520; --surface-3:#141a28; --surface-4:#192030;
  --border:rgba(68,136,255,.08); --border-2:rgba(68,136,255,.16); --border-3:rgba(68,136,255,.28);
  --text-1:#cce0ff; --text-2:#8090b8; --text-3:#445878; --text-4:#283448;
  --accent:#4488ff; --accent-dim:#2266dd; --accent-glow:rgba(68,136,255,0.22);
  --accent-soft:rgba(68,136,255,.08); --accent-mid:rgba(68,136,255,.16); --accent-high:rgba(68,136,255,.30);
  --sh-blue:0 4px 24px rgba(68,136,255,.32);
  --glass-bg:rgba(6,8,16,0.90);
}

/* ─── Supporter badges ───────────────────────────────────── */
.supporter-badge {
  display: inline-flex; align-items: center;
  font-size: 10px; font-weight: 700; letter-spacing: .06em;
  padding: 1px 8px; border-radius: var(--r-full);
  background: rgba(255,200,64,.10); border: 1px solid rgba(255,200,64,.25);
  color: #f0c040; line-height: 1.7; flex-shrink: 0;
  font-family: var(--font-mono);
}
.supporter-badge[data-tier="founder"] { background: rgba(255,200,64,.10); border-color: rgba(255,200,64,.28); color: #f0c040; }
.supporter-badge[data-tier="supporter"] { background: var(--accent-soft); border-color: var(--border-2); color: var(--accent); }
.user-name-row { display: flex; flex-direction: column; align-items: flex-start; gap: 1px; overflow: hidden; flex: 1; min-width: 0; }
.user-name-row .user-name { width: 100%; }
.perk-on { font-size: 11px; font-weight: 700; color: var(--green-text); padding: 2px 9px; border-radius: var(--r-full); background: var(--green-bg); border: 1px solid rgba(0,255,163,.2); flex-shrink: 0; font-family: var(--font-mono); }
.perk-value { font-size: 12px; font-weight: 600; color: var(--text-2); padding: 2px 9px; border-radius: var(--r-full); background: var(--surface-3); border: 1px solid var(--border); flex-shrink: 0; }
.perk-lock { font-size: 13px; flex-shrink: 0; opacity: .4; cursor: default; }

/* ─── Base ───────────────────────────────────────────────── */
html {
  height: 100%; overscroll-behavior: none; scroll-behavior: smooth;
  padding: env(safe-area-inset-top,0) env(safe-area-inset-right,0) env(safe-area-inset-bottom,0) env(safe-area-inset-left,0);
}
body {
  height: 100%; overflow: hidden; background: var(--bg); color: var(--text-1);
  font-family: var(--font); font-size: 16px; line-height: 1.6;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  -webkit-tap-highlight-color: transparent; touch-action: manipulation;
  overscroll-behavior: none;
  background-image:
    radial-gradient(ellipse at 20% 0%, rgba(0,229,255,0.04) 0%, transparent 50%);
  background-attachment: fixed;
}

/* Scrollbars */
::-webkit-scrollbar { width: 3px; height: 3px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: var(--r-full); transition: background .2s; }
::-webkit-scrollbar-thumb:hover { background: var(--border-3); }
::selection { background: var(--accent-mid); color: var(--text-1); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: var(--r-sm); }

.view { position: fixed; inset: 0; }
.hidden { display: none !important; }
button, label, kbd, .sidebar, .topbar, .sb-brand, .chat-title, .ci-label, .msg-name, .msg-ts {
  user-select: none; -webkit-user-select: none;
}

/* ══════════════════════════════════════════════════════════
   SPLASH
══════════════════════════════════════════════════════════ */
.splash-view {
  display: flex; align-items: center; justify-content: center;
  background: var(--bg); z-index: 9999;
  background-image: var(--grad-glow);
}
.splash-inner { display: flex; flex-direction: column; align-items: center; gap: 22px; }
.splash-logo { position: relative; width: 108px; height: 108px; display: flex; align-items: center; justify-content: center; }
.splash-emblem {
  width: 64px; height: 64px; object-fit: contain; border-radius: 20px; position: relative; z-index: 1;
  animation: splashPulse 2.2s ease-in-out infinite;
  filter: drop-shadow(0 0 20px var(--accent)) drop-shadow(0 0 60px var(--accent-glow));
}
.splash-ring {
  position: absolute; border-radius: 50%;
  border: 1px solid var(--border-2);
  animation: splashRing 2.6s ease-out infinite; pointer-events: none;
}
.splash-ring-1 { width: 82px; height: 82px; animation-delay: 0s; border-color: var(--accent-mid); }
.splash-ring-2 { width: 108px; height: 108px; animation-delay: .8s; }
@keyframes splashPulse { 0%,100%{transform:scale(1);opacity:1;} 50%{transform:scale(1.08);opacity:.9;} }
@keyframes splashRing { 0%{transform:scale(.75);opacity:0;} 35%{opacity:.9;} 100%{transform:scale(1.6);opacity:0;} }
.splash-brand { font-family: var(--font-brand); font-size: 1.7rem; font-weight: 700; color: var(--text-1); letter-spacing: -0.5px; }
.splash-brand em { font-style: normal; color: var(--accent); text-shadow: 0 0 20px var(--accent-glow); }
.splash-status { font-size: .78rem; color: var(--text-4); font-family: var(--font-mono); letter-spacing: .05em; }
.splash-error { font-size: .82rem; color: var(--red); text-align: center; max-width: 300px; }
@media(prefers-color-scheme:dark) { .splash-view { background: #050810; } }

/* ══════════════════════════════════════════════════════════
   INSTALL & UPDATE BARS
══════════════════════════════════════════════════════════ */
.install-banner {
  position: fixed; top: 0; left: 0; right: 0; z-index: 10000;
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border-2);
  backdrop-filter: var(--glass-blur);
  box-shadow: 0 4px 20px rgba(0,0,0,.5);
  animation: slideDown .3s var(--ease-spring);
}
@keyframes slideDown { from{transform:translateY(-100%);}to{transform:none;} }
.install-banner-icon { width: 36px; height: 36px; border-radius: 10px; flex-shrink: 0; }
.install-banner-text { flex: 1; min-width: 0; }
.install-banner-text strong { display: block; font-size: .88rem; font-weight: 700; color: var(--text-1); }
.install-banner-text span { font-size: .78rem; color: var(--text-4); }
.install-banner-btn {
  padding: 7px 16px; background: var(--accent); color: var(--text-inv);
  border-radius: var(--r-full); font-size: .82rem; font-weight: 700;
  font-family: var(--font-brand); letter-spacing: .02em;
  
  flex-shrink: 0;
}
.install-banner-x {
  width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0;
  background: var(--surface-3); color: var(--text-4); display: flex; align-items: center; justify-content: center;
  font-size: 14px;
}
.install-banner-x::before { content: '×'; font-size: 18px; line-height: 1; }
.update-bar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 9999;
  display: flex; align-items: center; justify-content: center; gap: 12px;
  padding: 10px 16px;
  background: linear-gradient(90deg, var(--violet), var(--accent));
  color: #fff; font-size: .84rem; font-weight: 600;
  animation: slideDown .3s var(--ease-spring);
}
.update-bar button {
  padding: 4px 14px; background: rgba(255,255,255,.22);
  border: 1px solid rgba(255,255,255,.35); border-radius: var(--r-full);
  font-size: .78rem; font-weight: 700; color: #fff;
}

/* ══════════════════════════════════════════════════════════
   AUTH — Full-page split panel
══════════════════════════════════════════════════════════ */
.auth-view {
  display: flex; position: fixed; inset: 0;
  background: var(--bg); z-index: 10; overflow: hidden;
  background-image:
    radial-gradient(ellipse at 15% 50%, rgba(0,229,255,0.07) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 50%, rgba(124,58,237,0.06) 0%, transparent 55%);
}

/* Ambient orbs */
.auth-ambient { position: absolute; inset: 0; pointer-events: none; overflow: hidden; z-index: 0; }
.auth-orb {
  position: absolute; border-radius: 50%;
  filter: blur(100px); opacity: 0;
  animation: orbFloat 10s ease-in-out infinite;
}
.auth-orb-1 {
  width: 600px; height: 600px; top: -200px; left: -150px;
  background: radial-gradient(circle, rgba(0,229,255,.15), transparent 68%);
  animation-delay: 0s;
}
.auth-orb-2 {
  width: 480px; height: 480px; bottom: -120px; right: -100px;
  background: radial-gradient(circle, rgba(124,58,237,.12), transparent 68%);
  animation-delay: 4s;
}
.auth-orb-3 {
  width: 340px; height: 340px; top: 40%; left: 30%;
  background: radial-gradient(circle, rgba(255,45,120,.06), transparent 68%);
  animation-delay: 7s;
}
@keyframes orbFloat {
  0%   { opacity:0; transform: scale(.8) translateY(0); }
  20%  { opacity:1; }
  50%  { transform: scale(1.08) translateY(-28px); }
  80%  { opacity:1; }
  100% { opacity:0; transform: scale(.8) translateY(0); }
}

/* Left hero panel */
.auth-hero {
  display: none; flex: 1;
  background: var(--grad-surface);
  border-right: 1px solid var(--border);
  position: relative; z-index: 1;
  align-items: center; justify-content: center;
  overflow: hidden;
}
.auth-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 40px,
    rgba(0,229,255,0.015) 40px,
    rgba(0,229,255,0.015) 41px
  );
  pointer-events: none;
}
@media (min-width: 900px) { .auth-hero { display: flex; } }
.auth-hero-inner { padding: 64px 60px; max-width: 480px; position: relative; z-index: 1; }
.auth-hero-logo { width: 56px; height: 56px; margin-bottom: 40px; }
.auth-hero-logo img {
  width: 100%; height: 100%; object-fit: contain; border-radius: 16px;
  filter: drop-shadow(0 0 24px var(--accent-glow)) drop-shadow(0 8px 20px rgba(0,0,0,.5));
}
.auth-hero-title {
  font-family: var(--font-brand);
  font-size: clamp(2.2rem, 3.5vw, 3.2rem);
  font-weight: 700; line-height: 1.1; letter-spacing: -0.04em;
  color: var(--text-1); margin-bottom: 18px; min-height: 3.5em;
}
.auth-headline { display: block; }
.auth-headline .aw {
  display: inline-block; opacity: 0; transform: translateY(12px);
  transition: opacity .28s ease, transform .28s ease;
}
.auth-headline .aw.in  { opacity: 1; transform: none; }
.auth-headline .aw.out { opacity: 0; transform: translateY(-10px); }
.auth-headline .aw.acc {
  background: var(--grad-accent);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.auth-hero-tagline {
  font-size: .92rem; color: var(--text-3); margin-bottom: 48px;
  font-family: var(--font-mono); letter-spacing: .03em;
  transition: opacity .25s ease;
}
.auth-hero-tagline::before { content: '// '; opacity: .5; }
.auth-hero-features { display: flex; flex-direction: column; gap: 16px; }
.auth-feat {
  display: flex; align-items: center; gap: 13px;
  font-size: .88rem; color: var(--text-2); font-weight: 500;
  padding: 10px 16px; border-radius: var(--r-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
  transition: border-color .2s, background .2s;
}
.auth-feat:hover { border-color: var(--border-2); background: var(--surface-2); }
.auth-feat svg { color: var(--accent); flex-shrink: 0;  }

/* Right form panel */
.auth-form-panel {
  width: 100%; max-width: 480px; flex-shrink: 0;
  overflow-y: auto; overflow-x: hidden;
  display: flex; flex-direction: column;
  padding: 52px 44px 36px;
  position: relative; z-index: 2;
  background: var(--surface);
  border-left: 1px solid var(--border);
}
@media (max-width: 899px) {
  .auth-form-panel { max-width: 100%; padding: 44px 24px 32px; justify-content: center; border-left: none; }
}

/* Mobile branding */
.auth-mobile-brand { display: flex; align-items: center; gap: 11px; margin-bottom: 40px; }
.auth-mobile-brand img { width: 34px; height: 34px; border-radius: 10px; object-fit: contain;  }
.auth-mobile-brand span { font-family: var(--font-brand); font-size: 1.4rem; font-weight: 700; color: var(--text-1); letter-spacing: -0.03em; }
.auth-mobile-brand em { font-style: normal; color: var(--accent); text-shadow: 0 0 14px var(--accent-glow); }
@media (min-width: 900px) { .auth-mobile-brand { display: none; } }

/* Sheet header */
.auth-sheet-header { margin-bottom: 34px; }
.auth-sheet-title {
  font-family: var(--font-brand); font-size: 1.7rem;
  font-weight: 700; color: var(--text-1); letter-spacing: -0.03em; margin-bottom: 6px;
}
.auth-sheet-sub { font-size: .875rem; color: var(--text-3); font-family: var(--font-mono); }

/* Panel animation */
.auth-panel { animation: panelIn .26s var(--ease); }
@keyframes panelIn { from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:none;} }

/* OAuth buttons */
.auth-oauth-first { display: flex; flex-direction: column; gap: 10px; margin-bottom: 24px; }
.oauth-btn {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  padding: 12px 18px; background: var(--surface-2);
  border: 1px solid var(--border-2); border-radius: var(--r-lg);
  font-size: .875rem; font-weight: 600; color: var(--text-1); width: 100%;
  transition: border-color var(--dur-fast), background var(--dur-fast),
              transform .2s var(--ease-spring), box-shadow .2s var(--ease);
}
.oauth-btn:hover {
  border-color: var(--accent); background: var(--accent-soft);
  transform: translateY(-2px); box-shadow: 0 4px 16px rgba(0,0,0,.3), 0 0 0 1px var(--border-2);
}
.oauth-btn:active { transform: scale(.97) translateY(0); }
.oauth-btn-full { width: 100%; }

/* Divider */
.auth-divider {
  display: flex; align-items: center; gap: 14px;
  margin: 4px 0 20px; color: var(--text-4); font-size: .78rem;
  font-family: var(--font-mono);
}
.auth-divider::before, .auth-divider::after {
  content: ''; flex: 1; height: 1px; background: var(--border);
}

/* Form fields */
.auth-fields { display: flex; flex-direction: column; gap: 14px; margin-bottom: 20px; }
.auth-field-wrap { display: flex; flex-direction: column; gap: 6px; }
.auth-label {
  font-size: .8rem; font-weight: 600; color: var(--text-3);
  display: flex; align-items: center; justify-content: space-between;
  letter-spacing: .02em; text-transform: uppercase;
  font-family: var(--font-mono);
}
.auth-label-link { font-size: .8rem; font-weight: 500; color: var(--accent); text-transform: none; letter-spacing: 0; }
.auth-field {
  width: 100%; padding: 12px 15px;
  background: var(--surface-3);
  border: 1px solid var(--border-2);
  border-radius: var(--r-lg);
  font-size: .92rem; color: var(--text-1);
  outline: none;
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.auth-field::placeholder { color: var(--text-4); }
.auth-field:focus {
  border-color: var(--accent);
  background: var(--surface-2);
  box-shadow: 0 0 0 4px var(--accent-soft), 0 0 0 1px var(--accent);
}

/* Messages */
.auth-msg {
  padding: 10px 14px; border-radius: var(--r-lg);
  font-size: .84rem; line-height: 1.55;
  margin-bottom: 10px;
  border: 1px solid transparent;
}
.auth-msg[data-type="err"] { background: var(--red-bg); border-color: rgba(255,59,92,.25); color: var(--red); }
.auth-msg[data-type="ok"]  { background: var(--green-bg); border-color: rgba(0,255,163,.2); color: var(--green-text); }

/* Auth button */
.auth-btn {
  width: 100%; padding: 13px;
  background: var(--grad-accent);
  color: var(--bg); font-weight: 800;
  font-family: var(--font-brand); font-size: 1rem; letter-spacing: .01em;
  border-radius: var(--r-xl); border: none; cursor: pointer;
  position: relative; overflow: hidden;
  box-shadow: 0 0 0 1px var(--border-2), 0 4px 20px var(--accent-glow);
  transition: transform .2s var(--ease-spring), box-shadow .2s var(--ease), opacity .2s;
}
.auth-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px var(--border-3), 0 8px 30px var(--accent-glow);
}
.auth-btn:active { transform: scale(.97); }
.auth-btn::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.12) 0%, transparent 60%);
  pointer-events: none;
}
.auth-btn span { position: relative; z-index: 1; }

/* Switch link */
.auth-switch { font-size: .85rem; color: var(--text-4); text-align: center; margin-top: 20px; }
.switch-link { color: var(--accent); font-weight: 600; }
.auth-legal { font-size: .75rem; color: var(--text-4); text-align: center; margin-top: 28px; line-height: 1.6; }
.auth-legal a { color: var(--text-3); text-decoration: underline; }

/* ══════════════════════════════════════════════════════════
   CHAT VIEW LAYOUT
══════════════════════════════════════════════════════════ */
.chat-view {
  display: flex;
  background: var(--bg);
}

/* ══════════════════════════════════════════════════════════
   SIDEBAR
══════════════════════════════════════════════════════════ */
.sidebar {
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  flex-shrink: 0; overflow: hidden;
  position: relative; z-index: 50;
  transition: width var(--dur-slow) var(--ease-in-out),
              transform var(--dur-slow) var(--ease-in-out),
              box-shadow var(--dur-slow) var(--ease);
}
.sidebar.collapsed { width: 0; }

/* sidebar gradient line removed — the border provides sufficient separation */

.sb-top { padding: 12px 10px 8px; border-bottom: 1px solid var(--border); flex-shrink: 0; }
.sb-logo-row { display: flex; align-items: center; gap: 9px; padding: 2px 4px 10px; }
.sb-collapse-btn {
  margin-left: auto; flex-shrink: 0; width: 30px; height: 30px;
  border-radius: var(--r); display: flex; align-items: center; justify-content: center;
  color: var(--text-4); background: transparent; border: none; cursor: pointer;
  transition: background var(--dur-fast), color var(--dur-fast);
}
.sb-collapse-btn:hover { background: var(--surface-3); color: var(--text-1); }
@media(min-width:701px) { .sb-collapse-btn { display: none; } }
.sb-emblem {
  width: 26px; height: 26px; object-fit: contain; flex-shrink: 0;
}
.sb-brand {
  font-family: var(--font-brand); font-size: 1.1rem; font-weight: 700;
  color: var(--text-1); white-space: nowrap; letter-spacing: -0.02em;
}
.sb-brand em { font-style: normal; color: var(--accent); }

.sb-new-btn {
  width: 100%; display: flex; align-items: center; gap: 8px;
  padding: 10px 14px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: .86rem; font-weight: 700; white-space: nowrap;
  border-radius: var(--r-lg); border: 1px solid var(--border-2);
  font-family: var(--font-brand); letter-spacing: .01em;
  position: relative; overflow: hidden;
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease),
              transform .2s var(--ease-spring), box-shadow .2s var(--ease);
}
.sb-new-btn::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(0,229,255,0.06), transparent);
  transform: translateX(-100%);
  transition: transform .6s var(--ease);
}
.sb-new-btn:hover::before { transform: translateX(100%); }
.sb-new-btn:hover { background: var(--accent-mid); border-color: var(--border-3); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(0,0,0,.3); }
.sb-new-btn:active { transform: scale(.97); box-shadow: none; }

.sb-section {
  padding: 14px 16px 6px; font-size: .68rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .12em; color: var(--text-4); white-space: nowrap;
  font-family: var(--font-mono);
}
.sb-list { flex: 1; overflow-y: auto; overflow-x: hidden; padding: 4px 8px; scroll-behavior: smooth; }
.sb-empty { padding: 32px 14px; font-size: .82rem; color: var(--text-4); text-align: center; line-height: 1.7; }

.chat-item {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 9px; border-radius: var(--r-lg);
  cursor: pointer; position: relative; overflow: hidden; white-space: nowrap;
  transition: background var(--dur-fast) var(--ease), transform .18s var(--ease-spring);
}
.chat-item:hover { background: var(--surface-2); }
.chat-item:active { transform: scale(.98); }
.chat-item.active {
  background: var(--accent-soft);
  box-shadow: inset 2px 0 0 var(--accent);
}
.chat-item.active .ci-label { color: var(--accent); font-weight: 600; }
.ci-icon { color: var(--text-4); flex-shrink: 0; display: flex; align-items: center; }
.chat-item.active .ci-icon { color: var(--accent); }
.ci-label { flex: 1; font-size: .82rem; color: var(--text-2); overflow: hidden; text-overflow: ellipsis; }
.ci-del {
  opacity: 0; flex-shrink: 0; width: 22px; height: 22px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--r-sm); color: var(--text-4);
  transition: opacity var(--dur-fast), background var(--dur-fast), color var(--dur-fast);
}
.chat-item:hover .ci-del { opacity: 1; }
.ci-del:hover { background: var(--red-bg); color: var(--red); }

/* Sidebar bottom */
.sb-bottom { padding: 8px 6px; border-top: 1px solid var(--border); display: flex; flex-direction: column; gap: 1px; flex-shrink: 0; }
.sb-nav-btn {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px; border-radius: var(--r-lg);
  font-size: .83rem; color: var(--text-3); width: 100%; white-space: nowrap;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease),
              transform .18s var(--ease-spring);
}
.sb-nav-btn:hover { background: var(--surface-2); color: var(--text-1); }
.sb-nav-btn:active { transform: scale(.97); }
.sb-user-btn {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px;
  border-radius: var(--r-lg); cursor: pointer; width: 100%; margin-top: 2px; white-space: nowrap;
  border: 1px solid transparent;
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast), transform .18s var(--ease-spring);
}
.sb-user-btn:hover { background: var(--surface-2); border-color: var(--border); }
.sb-user-btn:active { transform: scale(.97); }
.sb-user-btn svg { color: var(--text-4); margin-left: auto; flex-shrink: 0; }

.user-avatar {
  width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0;
  background: var(--grad-accent); color: var(--text-inv);
  font-size: .7rem; font-weight: 800; display: flex; align-items: center; justify-content: center;
  font-family: var(--font-brand);
}
.user-name { font-size: .85rem; font-weight: 600; color: var(--text-2); overflow: hidden; text-overflow: ellipsis; flex: 1; min-width: 0; }

/* User menu popover */
.user-menu {
  position: fixed; bottom: 74px; left: 10px; width: 220px;
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--r-xl); box-shadow: var(--sh-xl);
  padding: 6px; z-index: 200;
  backdrop-filter: var(--glass-blur);
  animation: popIn .22s var(--ease-spring);
}
@keyframes popIn { from{opacity:0;transform:scale(.88) translateY(10px);}to{opacity:1;transform:none;} }
.um-item {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 9px 12px; font-size: .86rem; color: var(--text-2);
  border-radius: var(--r-lg);
  transition: background var(--dur-fast), transform .15s var(--ease-spring);
}
.um-item:hover { background: var(--surface-2); transform: translateX(2px); }
.um-item:active { transform: scale(.97); }
.um-danger { color: var(--red); }
.um-danger:hover { background: var(--red-bg); transform: none; }
.um-divider { height: 1px; background: var(--border); margin: 4px 0; }

/* ─── Chat main ───────────────────────────────────────────── */
.chat-main { flex: 1; display: flex; flex-direction: column; min-width: 0; overflow: hidden; }

/* Topbar — liquid glass */
.topbar {
  height: var(--topbar-h); display: flex; align-items: center; justify-content: space-between;
  padding: 0 16px;
  background: rgba(9,13,26,0.88);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0; position: relative; z-index: 10; gap: 12px;
  transition: background var(--dur), border-color var(--dur);
}
/* topbar gradient underline removed — flat border provides enough separation */
.topbar-left { display: flex; align-items: center; gap: 10px; min-width: 0; flex: 1; }
.topbar-right { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.chat-title { font-size: .9rem; font-weight: 600; color: var(--text-1); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 240px; font-family: var(--font-brand); letter-spacing: -0.01em; }
.topbar-icon {
  width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
  border-radius: var(--r-lg); color: var(--text-3); flex-shrink: 0; position: relative; overflow: hidden;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease),
              transform .18s var(--ease-spring);
}
.topbar-icon:hover { background: var(--surface-3); color: var(--accent); }
.topbar-icon:active { transform: scale(.88); }

/* RAG pill */
.rag-pill {
  display: flex; align-items: center; gap: 5px; padding: 4px 11px;
  background: var(--accent-soft); color: var(--accent);
  border: 1px solid var(--border-2); border-radius: var(--r-full);
  font-size: .73rem; font-weight: 700; white-space: nowrap;
  font-family: var(--font-mono); letter-spacing: .04em;
  animation: pillIn .22s var(--ease-spring);
}
@keyframes pillIn { from{opacity:0;transform:scale(.8);}to{opacity:1;transform:none;} }

/* Model picker */
.model-picker { position: relative; }
.model-pill {
  display: flex; align-items: center; gap: 7px;
  padding: 6px 14px; background: var(--surface-2);
  border: 1px solid var(--border-2); border-radius: var(--r-full);
  font-size: .81rem; font-weight: 600; color: var(--text-2); white-space: nowrap;
  font-family: var(--font-mono); letter-spacing: .02em;
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease),
              transform .2s var(--ease-spring), box-shadow .2s var(--ease);
}
.model-pill:hover { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,0,0,.3); }
.model-pill:active { transform: scale(.96); }
.model-dropdown {
  position: absolute; top: calc(100% + 10px); right: 0; min-width: 280px;
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--r-xl); box-shadow: var(--sh-xl); padding: 6px; z-index: 200;
  backdrop-filter: var(--glass-blur);
  animation: dropIn .22s var(--ease);
}
@keyframes dropIn { from{opacity:0;transform:translateY(-10px) scale(.97);}to{opacity:1;transform:none;} }
.md-option { padding: 11px 14px; border-radius: var(--r-lg); cursor: pointer; display: flex; flex-direction: column; gap: 2px; transition: background var(--dur-fast), transform .15s var(--ease-spring); }
.md-option:hover { background: var(--surface-2); transform: translateX(2px); }
.md-option:active { transform: scale(.98); }
.md-option.active { background: var(--accent-soft); box-shadow: inset 2px 0 0 var(--accent); }
.md-name { display: flex; align-items: center; gap: 8px; font-size: .87rem; font-weight: 700; color: var(--text-1); font-family: var(--font-brand); }
.md-tag { font-size: .62rem; font-weight: 800; padding: 1px 7px; border-radius: var(--r-full); background: var(--accent-mid); color: var(--accent); letter-spacing: .06em; font-family: var(--font-mono); }
.md-tag.POWER { background: rgba(124,58,237,.18); color: var(--violet); }
.md-tag.SAFE  { background: var(--green-bg); color: var(--green-text); }
.md-desc { font-size: .78rem; color: var(--text-4); }

/* ─── Messages area ───────────────────────────────────────── */
.chat-scroll {
  flex: 1; overflow-y: auto; overflow-x: hidden; min-height: 0;
  position: relative; z-index: 0;
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--border-2) transparent;
}
.messages { max-width: var(--msg-max); width: 100%; margin: 0 auto; padding: 28px 16px 8px; display: flex; flex-direction: column; gap: 2px; }

/* ══════════════════════════════════════════════════════════
   WELCOME SCREEN
══════════════════════════════════════════════════════════ */
.welcome { display: flex; flex-direction: column; align-items: center; padding: 40px 0 28px; position: relative; width: 100%; }
.welcome > * { opacity: 0; animation: welcomeStagger .50s var(--ease-spring) forwards; }
.welcome-glow  { animation-delay: .00s !important; }
.welcome-logo  { animation-delay: .05s !important; }
.welcome-heading { animation-delay: .12s !important; }
.welcome-sub   { animation-delay: .20s !important; }
.welcome-cards { animation-delay: .28s !important; }
@keyframes welcomeStagger {
  from { opacity:0; transform: translateY(18px); }
  to   { opacity:1; transform: none; }
}
/* Glow is now a static element — no breathing animation, less visual noise */
.welcome-glow {
  position: absolute; top: -60px; left: 50%; transform: translateX(-50%);
  width: 500px; height: 360px; pointer-events: none; z-index: 0;
  background: radial-gradient(ellipse, rgba(0,229,255,0.05) 0%, transparent 65%);
  opacity: 1 !important;
}
.welcome-logo { position: relative; z-index: 1; margin-bottom: 18px; }
.welcome-emblem {
  width: 60px; height: 60px; object-fit: contain; border-radius: 18px;
  filter: drop-shadow(0 0 16px var(--accent-glow));
  /* No floating animation — reduces motion sickness and visual noise */
  opacity: 1 !important;
}
.welcome-heading {
  font-family: var(--font-brand);
  font-size: 1.9rem; font-weight: 700; text-align: center;
  letter-spacing: -0.04em; line-height: 1.2;
  margin-bottom: 8px; position: relative; z-index: 1;
  background: var(--grad-accent);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
@supports not (background-clip:text) { .welcome-heading { color: var(--accent); background: none; -webkit-text-fill-color: initial; } }
.welcome-sub {
  font-size: .88rem; color: var(--text-3); text-align: center; margin-bottom: 20px;
  position: relative; z-index: 1; max-width: 360px; line-height: 1.6;
  font-family: var(--font-mono);
}
.welcome-sub::before { content: ''; display: inline; }

/* Capability badge strip */
.welcome-caps {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 6px;
  margin-bottom: 20px; position: relative; z-index: 1; max-width: 560px;
}
.welcome-cap-badge {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: .72rem; font-weight: 500; color: var(--text-2);
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 20px; padding: 3px 10px;
  white-space: nowrap; letter-spacing: .01em;
}
.welcome-cap-badge svg { opacity: .75; flex-shrink: 0; }

/* Recent chat chips */
.cx-recent-chats {
  width: 100%; max-width: 560px; margin-bottom: 20px;
  position: relative; z-index: 1;
}
.cx-recent-label {
  font-size: .72rem; font-weight: 600; letter-spacing: .06em;
  text-transform: uppercase; color: var(--text-4); margin-bottom: 8px;
  text-align: center;
}
.cx-recent-chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; }
.cx-recent-chip {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: .78rem; font-weight: 500; color: var(--text-2);
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 20px; padding: 5px 12px; cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
  max-width: 200px;
}
.cx-recent-chip span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cx-recent-chip:hover { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.cx-recent-chip:active { transform: scale(.95); }

.welcome-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; width: 100%; max-width: 540px; position: relative; z-index: 1; }
.welcome-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl); padding: 14px 16px;
  text-align: left; cursor: pointer; display: flex; flex-direction: column; gap: 6px;
  position: relative; overflow: hidden;
  transition: border-color .2s var(--ease), background .2s var(--ease),
              transform .2s var(--ease-spring);
  will-change: transform;
}
/* Subtle mouse-tracked radial on hover only — no permanent glows */
.welcome-card::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at var(--mx,50%) var(--my,50%), var(--accent-soft), transparent 70%);
  opacity: 0; transition: opacity .25s;
}
.welcome-card:hover::before { opacity: 1; }
.welcome-card:hover {
  border-color: var(--border-2);
  transform: translateY(-3px);
}
.welcome-card:active { transform: scale(.97); }
.wc-icon { font-size: 1.1rem; line-height: 1; display: flex; align-items: center; color: var(--accent); }
.wc-title { font-size: .85rem; font-weight: 700; color: var(--text-1); line-height: 1.3; font-family: var(--font-brand); }
.wc-sub   { font-size: .75rem; color: var(--text-4); line-height: 1.4; }

/* ══════════════════════════════════════════════════════════
   MESSAGES
══════════════════════════════════════════════════════════ */
.msg-row {
  display: flex; align-items: flex-end; gap: 8px; padding: 3px 0;
  animation: msgIn .38s var(--ease-spring);
}
@keyframes msgIn {
  from { opacity:0; transform: translateY(12px) scale(.99); }
  to   { opacity:1; transform: translateY(0) scale(1); }
}
/* Stagger consecutive AI messages for a more natural feel */
.msg-row:not(.user):nth-child(even) { animation-delay: .04s; }
.msg-row:not(.user):nth-child(odd)  { animation-delay: .02s; }
.msg-row.user { flex-direction: row-reverse; }
.ai-avatar {
  width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0; margin-bottom: 2px;
  background: var(--surface-3);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
}
.ai-avatar img { width: 16px; height: 16px; object-fit: contain; }
.msg-row.no-avatar .ai-avatar { visibility: hidden; }
.msg-content { max-width: 80%; display: flex; flex-direction: column; gap: 3px; }
.msg-name { font-size: .73rem; color: var(--text-4); padding-left: 4px; margin-bottom: 1px; font-family: var(--font-mono); }
.msg-name strong { font-weight: 700; color: var(--text-3); }

/* User bubble */
.msg-row.user .msg-bubble {
  background: var(--grad-accent);
  color: var(--bg);
  border-radius: 20px 20px 4px 20px;
  padding: 11px 16px;
  font-size: .94rem; line-height: 1.65;
  white-space: pre-wrap; word-break: break-word;
  box-shadow: 0 2px 8px rgba(0,0,0,.25);
  border: none; font-weight: 500;
}

/* AI bubble */
.msg-row:not(.user) .msg-bubble {
  background: transparent; border: none; border-radius: 0; box-shadow: none;
  padding: 4px 0 4px 12px;
  font-size: .94rem; line-height: 1.82; word-break: break-word; color: var(--text-1);
  border-left: 2px solid var(--border);
  transition: border-color .3s var(--ease);
  position: relative;
}
/* Streaming state — pulse the accent border while tokens arrive */
.msg-row:not(.user) .msg-bubble.streaming {
  border-left-color: var(--accent);
  animation: streamPulse 1.6s ease-in-out infinite;
}
@keyframes streamPulse {
  0%, 100% { border-left-color: var(--accent-mid); }
  50%       { border-left-color: var(--accent); }
}
/* Remove pulse once done */
.msg-row:not(.user) .msg-bubble:not(.streaming) {
  border-left-color: var(--border);
  animation: none;
}

.msg-ts { font-size: .7rem; color: var(--text-4); padding: 0 4px; opacity: .7; font-family: var(--font-mono); }
.msg-row.user .msg-ts { text-align: right; }

.msg-actions {
  display: flex; gap: 1px; flex-wrap: wrap; padding: 4px 2px 2px;
  opacity: 0; transform: translateY(6px);
  transition: opacity .22s var(--ease), transform .22s var(--ease-spring);
}
.msg-row:hover .msg-actions { opacity: 1; transform: none; }
.msg-action-btn {
  display: flex; align-items: center; gap: 5px; padding: 5px 10px;
  border-radius: var(--r-full); font-size: .75rem; font-weight: 600;
  color: var(--text-4); background: var(--surface-2); border: 1px solid var(--border);
  transition: background var(--dur-fast), color var(--dur-fast), border-color var(--dur-fast), transform .15s var(--ease-spring);
  font-family: var(--font-mono); letter-spacing: .02em;
}
.msg-action-btn:hover { background: var(--accent-soft); color: var(--accent); border-color: var(--border-2); transform: translateY(-1px); }
.msg-action-btn:active { transform: scale(.94); }

/* ─── Code blocks ──────────────────────────────────────── */
.code-block {
  border-radius: var(--r-xl); overflow: hidden;
  border: 1px solid var(--border-2);
  margin: 10px 0;
  box-shadow: 0 4px 20px rgba(0,0,0,.4);
}
.code-block-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 16px; background: var(--surface-3);
  border-bottom: 1px solid var(--border);
}
.code-block-lang {
  font-size: .72rem; font-weight: 700; color: var(--accent);
  text-transform: uppercase; letter-spacing: .12em;
  font-family: var(--font-mono);
}
.code-block-copy {
  font-size: .75rem; font-weight: 600; color: var(--text-4); padding: 3px 11px;
  border-radius: var(--r-full); border: 1px solid var(--border); background: transparent;
  font-family: var(--font-mono);
  transition: color var(--dur-fast), border-color var(--dur-fast), background var(--dur-fast);
}
.code-block-copy:hover { color: var(--accent); border-color: var(--border-2); background: var(--accent-soft); }
.code-block pre { background: var(--surface-2); margin: 0; padding: 18px; overflow-x: auto; }
.code-block code { font-family: var(--font-mono); font-size: .86rem; line-height: 1.7; }
.msg-bubble code {
  font-family: var(--font-mono); font-size: .84em;
  background: var(--surface-3); color: var(--accent);
  padding: 2px 7px; border-radius: var(--r-sm);
  border: 1px solid var(--border);
}
.msg-bubble pre { margin: 0; }

/* RAG sources */
.rag-sources { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border); }
.rag-sources-label { font-size: .72rem; color: var(--text-4); font-weight: 700; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 8px; font-family: var(--font-mono); }
.rag-source-item { display: flex; align-items: flex-start; gap: 7px; padding: 6px 10px; border-radius: var(--r); font-size: .8rem; color: var(--text-3); transition: background var(--dur-fast), transform .15s var(--ease-spring); }
.rag-source-item:hover { background: var(--surface-2); color: var(--accent); text-decoration: none; transform: translateX(4px); }
.rag-source-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--accent); flex-shrink: 0; margin-top: 7px; }

/* Edit area */
.edit-area { display: flex; flex-direction: column; gap: 8px; }
.edit-textarea { width: 100%; padding: 12px 15px; background: var(--surface-2); border: 1px solid var(--accent); border-radius: var(--r-lg); font-size: .9rem; color: var(--text-1); resize: none; min-height: 64px; outline: none; box-shadow: 0 0 0 4px var(--accent-soft); line-height: 1.65; }
.edit-actions { display: flex; gap: 8px; justify-content: flex-end; }
.edit-cancel-btn { padding: 7px 15px; font-size: .83rem; border-radius: var(--r-full); color: var(--text-3); border: 1px solid var(--border-2); transition: background var(--dur-fast), transform .18s var(--ease-spring); }
.edit-cancel-btn:hover { background: var(--surface-2); }
.edit-cancel-btn:active { transform: scale(.95); }
.edit-send-btn { padding: 7px 15px; font-size: .83rem; font-weight: 700; border-radius: var(--r-full); background: var(--grad-accent); color: var(--bg); transition: opacity var(--dur-fast), transform .18s var(--ease-spring), box-shadow .18s var(--ease); font-family: var(--font-brand); }
.edit-send-btn:hover { transform: translateY(-1px); }
.edit-send-btn:active { transform: scale(.95); box-shadow: none; }

/* ══════════════════════════════════════════════════════════
   THINKING ANIMATION
══════════════════════════════════════════════════════════ */
.thinking-row { display: flex; align-items: center; gap: 12px; padding: 8px 16px; max-width: var(--msg-max); margin: 0 auto; width: 100%; position: relative; z-index: 1; }
.cx-thinking { position: relative; width: 50px; height: 50px; flex-shrink: 0; }
.cx-think-emblem { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; z-index: 2; pointer-events: none; }
.cx-think-emblem img { width: 22px; height: 22px; object-fit: contain; animation: thinkPulse 2s ease-in-out infinite; }
@keyframes thinkPulse { 0%,100%{transform:scale(1);}50%{transform:scale(1.14);} }
.cx-think-ring { position: absolute; inset: 0; border-radius: 50%; border: 1px solid var(--border-2); animation: ringPulse 2.2s ease-out infinite; pointer-events: none; }
.cx-ring-1 { animation-delay: 0s; border-color: var(--accent-mid); } .cx-ring-2 { animation-delay: .8s; }
@keyframes ringPulse { 0%{transform:scale(.65);opacity:0;}35%{opacity:1;}100%{transform:scale(1.6);opacity:0;} }
.cx-orbit-wrap { position: absolute; inset: 0; pointer-events: none; }
.cx-orbit { position: absolute; inset: 0; pointer-events: none; }
.cx-orbit-a { animation: orbitA 2.2s linear infinite; }
.cx-orbit-b { animation: orbitB 3.1s linear infinite; }
.cx-orbit-c { animation: orbitC 3.9s linear infinite; }
@keyframes orbitA { from{transform:rotate(0deg);}to{transform:rotate(360deg);} }
@keyframes orbitB { from{transform:rotate(120deg);}to{transform:rotate(480deg);} }
@keyframes orbitC { from{transform:rotate(240deg);}to{transform:rotate(600deg);} }
.cx-orb { position: absolute; top: 2px; left: 50%; transform: translateX(-50%); width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }
.thinking-label { display: flex; align-items: center; gap: 5px; font-size: .82rem; color: var(--text-4); font-weight: 500; font-family: var(--font-mono); }
#thinking-text { transition: opacity .18s var(--ease), transform .18s var(--ease-spring); }
.thinking-dots { display: flex; gap: 4px; margin-left: 3px; }
.thinking-dots span { width: 4px; height: 4px; border-radius: 50%; background: var(--accent); animation: thinkDot 1.3s ease-in-out infinite; }
.thinking-dots span:nth-child(2) { animation-delay: .22s; }
.thinking-dots span:nth-child(3) { animation-delay: .44s; }
@keyframes thinkDot { 0%,60%,100%{transform:scale(.45);opacity:.35;}30%{transform:scale(1.1);opacity:1;} }

/* ══════════════════════════════════════════════════════════
   COMPOSER — neon glass floating bar
══════════════════════════════════════════════════════════ */
.composer-area {
  padding: 10px 14px calc(14px + env(safe-area-inset-bottom,0px));
  background: var(--bg); flex-shrink: 0; position: relative; z-index: 2;
}
.composer-area::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-2) 20%, var(--border-2) 80%, transparent);
  pointer-events: none;
}
.composer-box {
  max-width: var(--msg-max); margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--r-2xl);
  box-shadow: 0 2px 20px rgba(0,0,0,.5), 0 0 0 1px var(--border);
  display: flex; flex-direction: column; overflow: hidden;
  position: relative; z-index: 3;
  transition: border-color .28s var(--ease), box-shadow .28s var(--ease),
              transform .22s var(--ease-spring), background .25s var(--ease);
  will-change: transform;
}
.composer-box:focus-within {
  border-color: var(--accent);
  box-shadow: 0 4px 24px rgba(0,0,0,.4), 0 0 0 1px var(--accent);
  transform: translateY(-1px);
}
.composer-tools { display: flex; align-items: center; gap: 2px; padding: 9px 12px 0; }
.tool-btn {
  width: 32px; height: 32px; display: flex; align-items: center; justify-content: center;
  border-radius: var(--r-lg); color: var(--text-4);
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease),
              transform .18s var(--ease-spring);
}
.tool-btn:hover { background: var(--surface-3); color: var(--accent); }
.tool-btn:active { transform: scale(.84); }
.tool-btn.active { color: var(--accent); background: var(--accent-soft); box-shadow: inset 0 0 0 1px var(--border-2); }

.composer-input {
  width: 100%; padding: 10px 16px 8px; background: transparent; border: none; outline: none;
  font-size: .94rem; color: var(--text-1); resize: none;
  min-height: 44px; max-height: 160px; line-height: 1.7;
  transition: none;
  font-family: var(--font);
}
.composer-input::placeholder { color: var(--text-4); }

/* Footer row */
.cx-footer-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 10px 10px; gap: 8px;
}
.cx-footer-left { display: flex; align-items: center; gap: 4px; }
.cx-footer-right { display: flex; align-items: center; gap: 7px; }

.mic-btn {
  width: 34px; height: 34px; display: flex; align-items: center; justify-content: center;
  border-radius: 50%; color: var(--text-4);
  transition: background var(--dur-fast), color var(--dur-fast), transform .18s var(--ease-spring);
}
.mic-btn:hover { background: var(--surface-3); color: var(--accent); }
.mic-btn:active { transform: scale(.88); }
.mic-btn.mic-recording { background: var(--red-bg); color: var(--red); animation: micPulse 1s ease-in-out infinite; }
.mic-btn.mic-transcribing { background: var(--accent-soft); color: var(--accent); }
@keyframes micPulse { 0%,100%{box-shadow:0 0 0 0 rgba(255,59,92,.4);}50%{box-shadow:0 0 0 8px rgba(255,59,92,.0);} }

.send-btn {
  width: 38px; height: 38px; display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--grad-accent);
  color: var(--bg);
  position: relative; overflow: hidden;
  box-shadow: 0 2px 12px var(--accent-glow);
  transition: transform .2s var(--ease-spring), box-shadow .2s var(--ease);
  will-change: transform;
}
.send-btn::after {
  content: ''; position: absolute; inset: 0; border-radius: 50%;
  background: linear-gradient(135deg, rgba(255,255,255,0.25), transparent);
  pointer-events: none;
}
/* Pulse only when composer focused with text — glow reserved for primary CTA */
.composer-box:focus-within .send-btn:not(.stop) {
  box-shadow: 0 4px 18px var(--accent-glow);
}
@keyframes sendReady {
  0%, 100% { box-shadow: 0 4px 18px var(--accent-glow); }
  50%       { box-shadow: 0 6px 26px var(--accent-glow); }
}
.send-btn:hover { transform: scale(1.14) rotate(8deg); box-shadow: 0 8px 28px var(--accent-glow); }
.send-btn:active { transform: scale(.88); box-shadow: none; }
.send-btn.stop { background: var(--red); box-shadow: 0 2px 12px var(--rose-glow); animation: stopPulse 1.4s ease-in-out infinite; }
@keyframes stopPulse { 0%,100%{box-shadow:0 0 0 0 rgba(255,59,92,.45);}50%{box-shadow:0 0 0 8px rgba(255,59,92,.0);} }
.send-btn.stop:hover { background: #e8002a; animation: none; }

/* cx-send-v2 */
.cx-send-v2 {
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--grad-accent); color: var(--bg);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 12px var(--accent-glow);
}

.composer-counter { font-size: .71rem; color: var(--text-4); padding-right: 2px; transition: color .2s; font-family: var(--font-mono); }
.composer-hint {
  text-align: center; font-size: .71rem; color: var(--text-4);
  padding-top: 8px; max-width: var(--msg-max); margin: 0 auto; opacity: .7;
  font-family: var(--font-mono); letter-spacing: .02em;
}

/* Echo mode bar */
#echo-mode-bar { display: none; align-items: center; gap: 8px; padding: 6px 14px; background: var(--surface-2); border: 1px solid var(--border-2); border-radius: var(--r-lg); margin-top: 6px; }

/* ══════════════════════════════════════════════════════════
   MODALS
══════════════════════════════════════════════════════════ */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(5,8,16,.70);
  backdrop-filter: blur(12px) saturate(150%);
  -webkit-backdrop-filter: blur(12px) saturate(150%);
  display: flex; align-items: center; justify-content: center;
  z-index: 500; padding: 20px;
  animation: modalFadeIn .2s var(--ease);
}
@keyframes modalFadeIn { from{opacity:0;}to{opacity:1;} }
.modal-sheet {
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--r-2xl);
  box-shadow: var(--sh-xl), 0 0 0 1px var(--border), 0 0 60px rgba(0,229,255,0.04);
  width: 100%; max-width: 480px; max-height: 88vh;
  display: flex; flex-direction: column; overflow: hidden;
  animation: sheetIn .32s var(--ease-spring);
}
@keyframes sheetIn { from{opacity:0;transform:translateY(24px) scale(.97);}to{opacity:1;transform:none;} }
.modal-drag-handle { width: 36px; height: 3px; background: var(--border-2); border-radius: var(--r-full); margin: 14px auto 0; flex-shrink: 0; }
.modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px 13px; border-bottom: 1px solid var(--border); flex-shrink: 0;
}
.modal-title { font-size: .96rem; font-weight: 700; color: var(--text-1); font-family: var(--font-brand); letter-spacing: -0.01em; }
.modal-close {
  width: 30px; height: 30px; display: flex; align-items: center; justify-content: center;
  border-radius: var(--r-lg); color: var(--text-4);
  transition: background var(--dur-fast), transform .18s var(--ease-spring), color var(--dur-fast);
}
.modal-close:hover { background: var(--surface-3); color: var(--accent); }
.modal-close:active { transform: scale(.88); }
.modal-body { padding: 16px 20px 24px; overflow-y: auto; flex: 1; }
.modal-sep { height: 1px; background: var(--border); margin: 14px 0; }
.modal-back-btn { width: 32px; height: 32px; display: flex; align-items: center; justify-content: center; border-radius: var(--r-lg); color: var(--text-3); transition: background var(--dur-fast), color var(--dur-fast); }
.modal-back-btn:hover { background: var(--surface-3); color: var(--accent); }

/* Settings */
.setting-section { font-size: .68rem; font-weight: 700; text-transform: uppercase; letter-spacing: .12em; color: var(--text-4); margin-bottom: 10px; font-family: var(--font-mono); }
.setting-row { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--border); }
.setting-row:last-of-type { border-bottom: none; }
.setting-row.col { flex-direction: column; align-items: flex-start; }
.setting-info { display: flex; flex-direction: column; gap: 2px; }
.setting-label { font-size: .88rem; font-weight: 600; color: var(--text-1); }
.setting-desc { font-size: .79rem; color: var(--text-4); }
.setting-select {
  padding: 7px 11px; background: var(--surface-3); border: 1px solid var(--border-2);
  border-radius: var(--r-lg); font-size: .84rem; color: var(--text-1); outline: none;
  min-width: 120px; cursor: pointer;
  transition: border-color var(--dur-fast), box-shadow var(--dur);
}
.setting-select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.setting-input {
  width: 100%; padding: 10px 14px; background: var(--surface-3);
  border: 1px solid var(--border-2); border-radius: var(--r-lg);
  font-size: .88rem; color: var(--text-1); outline: none;
  transition: border-color var(--dur-fast), box-shadow var(--dur);
}
.setting-input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.setting-link-btn { font-size: .83rem; color: var(--red); font-weight: 600; padding: 4px 12px; border-radius: var(--r-sm); transition: background var(--dur-fast); }
.setting-link-btn:hover { background: var(--red-bg); }

/* Toggle */
.toggle { position: relative; display: inline-flex; cursor: pointer; flex-shrink: 0; }
.toggle input { position: absolute; opacity: 0; width: 0; height: 0; }
.track {
  width: 44px; height: 24px; background: var(--surface-4);
  border-radius: var(--r-full); border: 1px solid var(--border-2);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
  position: relative;
}
.track::after {
  content: ''; position: absolute; top: 3px; left: 3px;
  width: 16px; height: 16px; border-radius: 50%; background: var(--text-4);
  transition: transform var(--dur) var(--ease-spring), background var(--dur);
}
.toggle input:checked + .track { background: var(--accent); border-color: var(--accent); }
.toggle input:checked + .track::after { transform: translateX(20px); background: var(--bg); }

.personality-chips { display: flex; flex-wrap: wrap; gap: 6px; width: 100%; }
.p-chip {
  padding: 7px 14px; font-size: .82rem; font-weight: 600;
  border-radius: var(--r-full); border: 1px solid var(--border-2);
  background: var(--surface-2); color: var(--text-2); cursor: pointer;
  position: relative; overflow: hidden;
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease),
              color var(--dur-fast) var(--ease), transform .18s var(--ease-spring);
}
.p-chip:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); transform: translateY(-1px); }
.p-chip:active { transform: scale(.94); }
.p-chip.active { background: var(--accent); border-color: var(--accent); color: var(--bg); font-weight: 700; }

.danger-btn { display: flex; align-items: center; gap: 7px; width: 100%; padding: 11px 14px; font-size: .87rem; font-weight: 600; color: var(--red); border-radius: var(--r-lg); border: 1px solid transparent; transition: background var(--dur-fast), border-color var(--dur-fast), transform .18s var(--ease-spring); margin-top: 6px; }
.danger-btn:hover { background: var(--red-bg); border-color: rgba(255,59,92,.25); }
.danger-btn:active { transform: scale(.97); }

.help-row { display: flex; align-items: center; justify-content: space-between; padding: 10px 0; font-size: .87rem; color: var(--text-2); border-bottom: 1px solid var(--border); }
.help-row:last-child { border-bottom: none; }
kbd {
  display: inline-flex; align-items: center; padding: 3px 9px;
  background: var(--surface-3); border: 1px solid var(--border-2);
  border-radius: var(--r-sm); font-size: .73rem; font-weight: 700;
  color: var(--accent); white-space: nowrap; font-family: var(--font-mono);
  letter-spacing: .04em;
}

/* ══════════════════════════════════════════════════════════
   THINKING STATE WIDGET
══════════════════════════════════════════════════════════ */
.ai-thinking-float {
  position: absolute; bottom: 0; left: 0; right: 0;
  display: flex; align-items: center; justify-content: center; gap: 5px;
  pointer-events: none; padding: 6px 0 2px;
  opacity: 0; transition: opacity .3s var(--ease);
}
.ai-thinking-float.visible { opacity: 1; }
.ai-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--accent); animation: aiDotPulse 1.4s ease-in-out infinite; }
.ai-dot:nth-child(1) { animation-delay: 0s; }
.ai-dot:nth-child(2) { animation-delay: .2s; }
.ai-dot:nth-child(3) { animation-delay: .4s; }
@keyframes aiDotPulse { 0%,100%{opacity:.2;transform:scale(.6);}50%{opacity:1;transform:scale(1.3);} }

/* Send button responding */
.send-btn.responding { background: var(--red); animation: respondPulse 1.5s ease-in-out infinite; }
@keyframes respondPulse { 0%,100%{box-shadow:0 0 0 0 rgba(255,59,92,.42);}50%{box-shadow:0 0 0 10px rgba(255,59,92,.0);} }

/* ══════════════════════════════════════════════════════════
   TOAST
══════════════════════════════════════════════════════════ */
.toast {
  position: fixed; bottom: calc(22px + env(safe-area-inset-bottom,0px));
  left: 50%; transform: translateX(-50%) translateY(0);
  background: var(--surface);
  border: 1px solid var(--border-2);
  color: var(--text-1);
  padding: 11px 24px; border-radius: var(--r-full);
  font-size: .84rem; font-weight: 600; z-index: 9000;
  box-shadow: var(--sh-xl), 0 0 20px rgba(0,0,0,.4);
  pointer-events: none; white-space: nowrap;
  display: none; animation: toastIn .28s var(--ease-spring);
  font-family: var(--font-brand);
}
.toast:not(.hidden) { display: block; }
@keyframes toastIn { from{opacity:0;transform:translateX(-50%) translateY(12px);}to{opacity:1;transform:translateX(-50%) translateY(0);} }

/* ══════════════════════════════════════════════════════════
   FEEDBACK PANEL
══════════════════════════════════════════════════════════ */
.fb-panel { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--r-xl); padding: 14px 16px; margin-top: 8px; animation: panelIn .22s var(--ease); }
.fb-label { font-size: .82rem; font-weight: 700; color: var(--text-2); margin-bottom: 10px; font-family: var(--font-brand); }
.fb-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.fb-tag { padding: 5px 12px; border-radius: var(--r-full); border: 1px solid var(--border-2); background: var(--surface-3); font-size: .78rem; font-weight: 600; color: var(--text-3); cursor: pointer; transition: all var(--dur-fast); font-family: var(--font-mono); }
.fb-tag:hover { border-color: var(--accent); color: var(--accent); }
.fb-tag:active { transform: scale(.95); }
.fb-tag.selected { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.fb-textarea { width: 100%; padding: 10px 14px; background: var(--surface-3); border: 1px solid var(--border-2); border-radius: var(--r-lg); font-size: .85rem; color: var(--text-1); resize: none; line-height: 1.6; transition: border-color var(--dur-fast), box-shadow var(--dur); margin-bottom: 10px; }
.fb-textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.fb-textarea::placeholder { color: var(--text-4); }
.fb-panel-actions { display: flex; justify-content: flex-end; }
.fb-submit-btn { padding: 8px 20px; background: var(--grad-accent); color: var(--bg); border-radius: var(--r-full); font-size: .83rem; font-weight: 700; font-family: var(--font-brand); transition: opacity var(--dur-fast), transform .18s var(--ease-spring), box-shadow .18s var(--ease); }
.fb-submit-btn:hover { transform: scale(1.04); }
.fb-submit-btn:active { transform: scale(.96); }
.fb-submit-btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }
.fb-thanks { display: flex; align-items: center; justify-content: center; gap: 8px; padding: 18px; font-size: .9rem; font-weight: 700; color: var(--text-2); animation: fbPanelIn .3s var(--ease-spring); font-family: var(--font-brand); }
@keyframes fbPanelIn { from{opacity:0;transform:scale(.95);}to{opacity:1;transform:none;} }
.fb-thanks-icon { font-size: 1.5rem; }

/* ══════════════════════════════════════════════════════════
   UPGRADE MODAL
══════════════════════════════════════════════════════════ */
.upgrade-sheet { text-align: center; padding: 48px 36px 36px; max-width: 420px; }
.upgrade-icon { font-size: 3rem; margin-bottom: 20px; display: block; filter: drop-shadow(0 0 20px var(--accent-glow)); animation: iconBounce .7s var(--ease-spring) both; }
@keyframes iconBounce { from{transform:scale(0) rotate(-20deg);}to{transform:none;} }
.upgrade-title { font-size: 1.5rem; font-weight: 700; color: var(--text-1); margin-bottom: 10px; font-family: var(--font-brand); letter-spacing: -0.03em; }
.upgrade-desc { font-size: .9rem; color: var(--text-3); line-height: 1.65; margin-bottom: 28px; }
.upgrade-desc strong { color: var(--text-1); font-weight: 700; }
.upgrade-perks { display: flex; flex-direction: column; gap: 8px; margin-bottom: 32px; text-align: left; }
.upgrade-perk { display: flex; align-items: center; gap: 11px; padding: 11px 16px; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--r-xl); font-size: .87rem; color: var(--text-2); }
.upgrade-perk span { font-size: 1rem; flex-shrink: 0; }
.upgrade-actions { display: flex; flex-direction: column; gap: 8px; }
.upgrade-wait-btn { width: 100%; padding: 14px; background: var(--grad-accent); color: var(--bg); border-radius: var(--r-xl); font-weight: 800; font-size: .96rem; font-family: var(--font-brand); letter-spacing: .01em; box-shadow: 0 4px 20px var(--accent-glow); transition: transform .2s var(--ease-spring), box-shadow .2s var(--ease); }
.upgrade-wait-btn:hover { transform: scale(1.02) translateY(-2px); box-shadow: 0 8px 32px var(--accent-glow); }
.upgrade-close-btn { width: 100%; padding: 10px; color: var(--text-4); font-size: .85rem; border-radius: var(--r-xl); transition: color var(--dur-fast), background var(--dur-fast); }
.upgrade-close-btn:hover { background: var(--surface-2); color: var(--text-2); }

/* ══════════════════════════════════════════════════════════
   ATTACHMENTS
══════════════════════════════════════════════════════════ */
#attach-preview { padding: 8px 14px 0; }
.attach-chip { display: inline-flex; align-items: center; gap: 7px; padding: 5px 12px; background: var(--surface-2); border: 1px solid var(--border-2); border-radius: var(--r-full); font-size: .8rem; color: var(--text-2); max-width: 260px; }
.attach-chip-icon { color: var(--accent); flex-shrink: 0; }
.attach-chip-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.attach-chip-remove { display: flex; align-items: center; justify-content: center; width: 16px; height: 16px; border-radius: 50%; flex-shrink: 0; color: var(--text-4); transition: background var(--dur-fast), color var(--dur-fast); }
.attach-chip-remove:hover { background: var(--red-bg); color: var(--red); }
.attach-img-preview { display: block; max-width: 220px; max-height: 180px; border-radius: var(--r-xl); margin-bottom: 6px; object-fit: cover; border: 1px solid var(--border-2); }

/* ══════════════════════════════════════════════════════════
   SETTINGS FULL-PAGE
══════════════════════════════════════════════════════════ */
.settings-fullpage {
  position: fixed; inset: 0; z-index: 400;
  display: flex; flex-direction: column;
  background: var(--bg);
  transform: translateX(100%);
  transition: transform .36s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  overflow: hidden; will-change: transform;
}
.settings-fullpage:not(.hidden) { transform: translateX(0); }

.settings-fp-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px 12px;
  background: var(--surface);
  border-bottom: 1px solid var(--border); flex-shrink: 0;
}

/* Settings cards */
.settings-group-label { font-size: .68rem; font-weight: 700; text-transform: uppercase; letter-spacing: .12em; color: var(--text-4); padding: 20px 4px 8px; font-family: var(--font-mono); }
.settings-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl); overflow: hidden; margin-bottom: 10px;
  box-shadow: var(--sh-xs);
  transition: box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.settings-card:hover { box-shadow: var(--sh-sm); border-color: var(--border-2); }
.settings-card-row {
  display: flex; align-items: center; gap: 13px; padding: 15px 16px;
  transition: background var(--dur-fast);
}
.settings-card-row:hover { background: var(--surface-2); }
.settings-card-divider { height: 1px; background: var(--border); margin: 0 16px; }
.scr-icon { width: 34px; height: 34px; display: flex; align-items: center; justify-content: center; border-radius: var(--r-lg); background: var(--surface-2); border: 1px solid var(--border); color: var(--text-3); flex-shrink: 0; }
.scr-body { flex: 1; min-width: 0; }
.scr-label { font-size: .88rem; font-weight: 600; color: var(--text-1); }
.scr-desc { font-size: .78rem; color: var(--text-4); margin-top: 1px; }

/* Stg avatar */
.stg-avatar-section { display: flex; align-items: center; gap: 16px; padding: 20px 0 24px; }
.stg-avatar-wrap { position: relative; cursor: pointer; flex-shrink: 0; }
.stg-avatar-el { width: 56px; height: 56px; border-radius: 50%; font-size: 1.2rem;  }
.stg-avatar-edit { position: absolute; inset: 0; border-radius: 50%; background: rgba(0,0,0,.5); display: flex; align-items: center; justify-content: center; color: #fff; font-size: .82rem; opacity: 0; transition: opacity .2s; backdrop-filter: blur(4px); }
.stg-avatar-wrap:hover .stg-avatar-edit { opacity: 1; }
.stg-avatar-info { flex: 1; min-width: 0; }
.stg-avatar-name { font-size: 1.05rem; font-weight: 700; color: var(--text-1); margin-bottom: 3px; font-family: var(--font-brand); }
.stg-avatar-email { font-size: .82rem; color: var(--text-4); overflow: hidden; text-overflow: ellipsis; font-family: var(--font-mono); }

/* Qwen / AI Intel section */
.qwen-section-label { display: flex; align-items: center; gap: 6px; font-size: .68rem; font-weight: 700; text-transform: uppercase; letter-spacing: .12em; color: var(--text-4); padding: 8px 4px 6px; font-family: var(--font-mono); }
.qwen-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-xl); overflow: hidden; margin-bottom: 8px; box-shadow: var(--sh-xs); }
.qwen-row { display: flex; align-items: center; gap: 12px; padding: 14px 16px; }
.qwen-row-icon { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; border-radius: var(--r-lg); flex-shrink: 0; border: 1px solid var(--border); }
.qwen-badge { font-size: .68rem; font-weight: 800; padding: 2px 9px; border-radius: var(--r-full); letter-spacing: .05em; flex-shrink: 0; font-family: var(--font-mono); }
.qwen-badge--on { background: var(--green-bg); color: var(--green-text); border: 1px solid rgba(0,255,163,.2); }
.qwen-nav-badge { font-size: .66rem; font-weight: 800; padding: 2px 9px; border-radius: var(--r-full); background: var(--grad-accent); color: var(--bg); flex-shrink: 0; font-family: var(--font-mono); letter-spacing: .04em; }
.qwen-ai-nav-row { background: linear-gradient(90deg, var(--accent-soft) 0%, transparent 100%); }

/* ══════════════════════════════════════════════════════════
   MOBILE OVERLAY + RESPONSIVE
══════════════════════════════════════════════════════════ */
@media (max-width: 700px) {
  .sidebar {
    position: fixed; left: 0; top: 0; bottom: 0; width: var(--sidebar-w) !important;
    transform: translateX(-100%);
    transition: transform var(--dur-slow) var(--ease-in-out), box-shadow var(--dur-slow) var(--ease);
    box-shadow: none; will-change: transform;
  }
  .sidebar:not(.collapsed) { transform: translateX(0); box-shadow: var(--sh-xl), 8px 0 60px rgba(0,0,0,.6); }
  .sidebar.collapsed { transform: translateX(-100%); }
  .chat-main { width: 100%; }
  .messages { padding: 12px 10px 8px; }
  .composer-area { padding: 8px 10px calc(10px + env(safe-area-inset-bottom,0px)); }
  .chat-title { max-width: 140px; }

  /* Welcome: 2-col grid, smaller, subtitle hidden */
  .welcome-cards { grid-template-columns: 1fr 1fr; gap: 7px; padding: 0 2px; }
  .welcome-card { padding: 11px 12px; }
  .welcome-card .wc-sub { display: none; }
  .welcome-heading { font-size: 1.5rem; }
  .welcome { padding: 28px 0 20px; }

  /* Topbar: hide clutter on mobile */
  .cx-ctx-depth-badge,
  .topbar-model-badge { display: none; }

  /* Composer: safe area at bottom, thumb reach */
  .composer-input { min-height: 40px; }
}

/* Sidebar backdrop on mobile */
.sb-backdrop {
  display: none; position: fixed; inset: 0;
  background: rgba(5,8,16,.65);
  backdrop-filter: blur(6px);
  z-index: 49;
  animation: fadeIn .22s var(--ease);
}
.sb-backdrop.visible { display: block; }
@keyframes fadeIn { from{opacity:0;}to{opacity:1;} }

@media (min-width: 701px) {
  .sidebar { position: relative; transform: none !important; }
}

/* ══════════════════════════════════════════════════════════
   MISC COMPONENTS
══════════════════════════════════════════════════════════ */

/* Web search pill in composer */
.cx-search-pill {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 11px; border-radius: var(--r-full);
  background: var(--accent-soft); color: var(--accent);
  border: 1px solid var(--border-2);
  font-size: .74rem; font-weight: 700; white-space: nowrap;
  font-family: var(--font-mono); letter-spacing: .04em;
  transition: background .15s, border-color .15s;
}
.cx-search-pill.off { background: var(--surface-2); color: var(--text-4); border-color: var(--border); }

/* Template btn */
#cx-template-btn { color: var(--text-4); }
#cx-template-btn:hover { color: var(--accent); background: var(--accent-soft); }

/* Composer counter states */
.composer-counter.warn { color: #f0a020; }
.composer-counter.danger { color: var(--red); font-weight: 700; }

/* Search sources */
.search-source { display: flex; align-items: center; gap: 7px; padding: 6px 10px; border-radius: var(--r-lg); font-size: .8rem; color: var(--text-3); transition: background var(--dur-fast), transform .15s var(--ease-spring); }
.search-source:hover { background: var(--surface-2); transform: translateX(4px); color: var(--accent); }
.search-source-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }

/* Code highlight */
.hljs { background: transparent !important; color: var(--text-2); font-size: .87rem; }

/* Image gen preview */
.img-gen-preview { border-radius: var(--r-xl); max-width: 100%; margin: 10px 0; box-shadow: var(--sh-lg), 0 0 0 1px var(--border); }

/* Template sheet */
.template-sheet { padding: 0 0 16px; }
.template-cat { padding: 14px 20px 8px; font-size: .68rem; font-weight: 700; text-transform: uppercase; letter-spacing: .12em; color: var(--text-4); font-family: var(--font-mono); }
.template-item { display: flex; align-items: center; gap: 12px; padding: 12px 20px; cursor: pointer; transition: background var(--dur-fast), transform .15s var(--ease-spring); border-radius: var(--r-lg); margin: 2px 8px; }
.template-item:hover { background: var(--surface-2); transform: translateX(4px); }
.template-item:active { transform: scale(.98); }
.template-icon { font-size: 1.2rem; flex-shrink: 0; }
.template-title { font-size: .88rem; font-weight: 700; color: var(--text-1); margin-bottom: 1px; font-family: var(--font-brand); }
.template-desc { font-size: .78rem; color: var(--text-4); }

/* Persona section */
.persona-row { display: flex; gap: 8px; flex-wrap: wrap; }
.persona-btn {
  display: flex; flex-direction: column; align-items: center; gap: 5px;
  padding: 11px 14px; border-radius: var(--r-xl);
  border: 1px solid var(--border-2); background: var(--surface-2);
  font-size: .8rem; color: var(--text-2); cursor: pointer;
  transition: border-color .2s, background .2s, transform .2s var(--ease-spring), box-shadow .2s;
}
.persona-btn:hover { border-color: var(--accent); background: var(--accent-soft); transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,.3); }
.persona-btn.active { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }
.persona-emoji { font-size: 1.4rem; }

/* Breadcrumb in settings */
.settings-nav-path { display: flex; align-items: center; gap: 6px; font-size: .76rem; color: var(--text-4); padding: 0 0 14px; font-family: var(--font-mono); }
.settings-nav-path span { color: var(--text-3); }

/* Scrollbar panel */
#sb-panel-chats { display: flex; flex-direction: column; flex: 1; overflow: hidden; }
#sb-panel-chats > .sb-list { scroll-behavior: smooth; }

/* Memory items */
.mem-item { padding: 12px 14px; border-radius: var(--r-lg); background: var(--surface-2); border: 1px solid var(--border); margin-bottom: 6px; font-size: .85rem; color: var(--text-2); display: flex; align-items: flex-start; gap: 10px; transition: background var(--dur-fast), border-color var(--dur-fast); }
.mem-item:hover { background: var(--surface-3); border-color: var(--border-2); }
.mem-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--accent); flex-shrink: 0; margin-top: 7px; }
.mem-del { opacity: 0; flex-shrink: 0; color: var(--text-4); transition: opacity var(--dur-fast), color var(--dur-fast); }
.mem-item:hover .mem-del { opacity: 1; }
.mem-del:hover { color: var(--red); }

/* Appearance grid */
.theme-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(90px, 1fr)); gap: 8px; margin-top: 10px; }
.theme-btn {
  display: flex; flex-direction: column; align-items: center; gap: 7px;
  padding: 13px 8px; border-radius: var(--r-xl);
  border: 1px solid var(--border-2); background: var(--surface-2);
  font-size: .78rem; font-weight: 600; color: var(--text-2); cursor: pointer;
  transition: border-color .2s, transform .2s var(--ease-spring), box-shadow .2s;
}
.theme-btn:hover { border-color: var(--accent); transform: translateY(-2px); }
.theme-btn.active { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.theme-swatch { width: 40px; height: 28px; border-radius: var(--r); border: 1px solid var(--border-2); }

/* About page */
.about-logo-row { display: flex; align-items: center; gap: 16px; padding: 20px 0 24px; }
.about-app-icon { width: 54px; height: 54px; border-radius: 16px; object-fit: contain; box-shadow: var(--sh); }
.about-app-name { font-family: var(--font-brand); font-size: 1.4rem; font-weight: 700; color: var(--text-1); letter-spacing: -0.03em; }
.about-app-ver { font-size: .8rem; color: var(--text-4); margin-top: 2px; font-family: var(--font-mono); }

/* TOS / Privacy pages */
.tos-body, .privacy-body { font-size: .88rem; color: var(--text-2); line-height: 1.78; }
.tos-body h3, .privacy-body h3 { font-size: .96rem; font-weight: 700; color: var(--text-1); margin: 20px 0 8px; font-family: var(--font-brand); }
.tos-body p, .privacy-body p { margin-bottom: .75em; }

/* Improve page */
.improve-section { margin-bottom: 22px; }
.improve-section h4 { font-size: .9rem; font-weight: 700; color: var(--text-1); margin-bottom: 8px; font-family: var(--font-brand); }
.improve-section p { font-size: .84rem; color: var(--text-3); line-height: 1.68; }

/* ══════════════════════════════════════════════════════════
   COMPOSER V2 — foot buttons + toolbar
══════════════════════════════════════════════════════════ */
.cx-composer-v2 { }
.cx-composer-body { position: relative; }
.cx-input-v2 { }
.cx-attach-strip { padding: 8px 14px 0; }

.cx-composer-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 10px 10px; gap: 6px;
}
.cx-footer-left { display: flex; align-items: center; gap: 2px; }
.cx-footer-right { display: flex; align-items: center; gap: 7px; }

.cx-foot-btn {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 6px 11px; border-radius: var(--r-full);
  color: var(--text-4); font-size: .77rem; font-weight: 600;
  background: transparent;
  border: 1px solid transparent;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease), transform .18s var(--ease-spring);
  white-space: nowrap; font-family: var(--font-mono);
}
.cx-foot-btn:hover {
  background: var(--surface-2); color: var(--text-2);
  border-color: var(--border); transform: translateY(-1px);
}
.cx-foot-btn:active { transform: scale(.9); }
.cx-foot-btn.active {
  background: var(--accent-soft); color: var(--accent);
  border-color: var(--border-2);
}
.cx-foot-label { font-size: .74rem; font-weight: 600; }

/* AI toolbar */
.cx-ai-toolbar {
  display: flex; align-items: center; gap: 5px;
  padding: 0 4px 6px; flex-wrap: wrap;
  max-width: var(--msg-max); margin: 0 auto;
  min-height: 0; overflow: hidden;
}
.cx-ai-toolbar:empty { display: none; }

/* Bottom nav mobile */
.cx-bottom-nav { display: none; }
@media (max-width: 400px) {
  .cx-bottom-nav { display: flex; }
  .composer-hint { display: none; }
}

/* ══════════════════════════════════════════════════════════
   LOADING SKELETON
══════════════════════════════════════════════════════════ */
@keyframes shimmer {
  0% { background-position: -600px 0; }
  100% { background-position: 600px 0; }
}
.skeleton {
  background: linear-gradient(90deg, var(--surface-2) 25%, var(--surface-3) 50%, var(--surface-2) 75%);
  background-size: 1200px 100%;
  animation: shimmer 2s ease-in-out infinite;
  border-radius: var(--r);
}

/* ══════════════════════════════════════════════════════════
   MICRO-INTERACTION — button press wave
══════════════════════════════════════════════════════════ */
@keyframes buttonWave {
  0% { box-shadow: 0 0 0 0 var(--accent-glow); }
  80% { box-shadow: 0 0 0 14px rgba(0,229,255,0); }
  100% { box-shadow: 0 0 0 0 rgba(0,229,255,0); }
}

/* ══════════════════════════════════════════════════════════
   SMOOTH PAGE TRANSITIONS for settings sub-pages
══════════════════════════════════════════════════════════ */
.settings-subpage {
  animation: slideInRight .3s var(--ease);
}
@keyframes slideInRight { from{opacity:0;transform:translateX(28px);}to{opacity:1;transform:none;} }

/* ══════════════════════════════════════════════════════════
   FOCUS RING improvements
══════════════════════════════════════════════════════════ */
.send-btn:focus-visible, .auth-btn:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 3px;
  box-shadow: 0 0 0 6px var(--accent-soft);
}

/* ══════════════════════════════════════════════════════════
   DARK THEME OVERRIDES (composer / topbar glass)
══════════════════════════════════════════════════════════ */
[data-theme="dark"] .topbar { background: rgba(16,22,42,0.92); backdrop-filter: blur(28px) saturate(180%); -webkit-backdrop-filter: blur(28px) saturate(180%); }
[data-theme="dark"] .auth-hero { background: rgba(10,14,26,.6); }
[data-theme="dark"] .model-dropdown { background: var(--surface); }
[data-theme="dark"] .user-menu { background: var(--surface); }
[data-theme="dark"] .code-block { border-color: var(--border-2); }
[data-theme="dark"] .code-block-header { background: var(--surface-3); }
[data-theme="dark"] .code-block pre { background: var(--surface-2); }
[data-theme="dark"] .msg-bubble code { color: var(--accent); background: var(--surface-3); }

/* ══════════════════════════════════════════════════════════
   LIGHT THEME OVERRIDES
══════════════════════════════════════════════════════════ */
[data-theme="light"] body { background-image: radial-gradient(ellipse at 20% 0%, rgba(37,99,235,0.05) 0%, transparent 55%), radial-gradient(ellipse at 80% 100%, rgba(124,58,237,0.04) 0%, transparent 55%); }
[data-theme="light"] .topbar { background: rgba(255,255,255,0.92); }
[data-theme="light"] .composer-box { background: rgba(255,255,255,0.95); }
[data-theme="light"] .sidebar { background: rgba(255,255,255,0.98); }
[data-theme="light"] .sb-brand em { text-shadow: none; }
[data-theme="light"] .auth-btn { color: #fff; }
[data-theme="light"] .send-btn { color: #fff; }
[data-theme="light"] .user-avatar { color: #fff; }
[data-theme="light"] .msg-row.user .msg-bubble { color: #fff; }
[data-theme="light"] .cx-send-v2 { color: #fff; }
[data-theme="light"] .upgrade-wait-btn { color: #fff; }
[data-theme="light"] .fb-submit-btn { color: #fff; }
[data-theme="light"] .edit-send-btn { color: #fff; }

/* ══════════════════════════════════════════════════════════
   NEON SCANLINES overlay (aesthetic touch)
══════════════════════════════════════════════════════════ */
body::before {
  content: '';
  position: fixed; inset: 0; z-index: 9999;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,229,255,0.012) 2px,
    rgba(0,229,255,0.012) 4px
  );
  pointer-events: none;
  mix-blend-mode: overlay;
}
[data-theme="light"] body::before { display: none; }

/* ══════════════════════════════════════════════════════════
   REDUCED MOTION ACCESSIBILITY
══════════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ══════════════════════════════════════════════════════════
   REASONING PILL (DeepSeek-style thinking indicator)
══════════════════════════════════════════════════════════ */
.cx-reasoning-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px;
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--r-full);
  box-shadow: var(--sh-sm), 0 0 20px rgba(0,229,255,0.06);
  backdrop-filter: var(--glass-blur);
  animation: pillRise .35s var(--ease-spring);
}
@keyframes pillRise { from{opacity:0;transform:translateY(8px) scale(.95);}to{opacity:1;transform:none;} }
.cx-reasoning-icon {
  width: 22px; height: 22px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--accent-soft);
  border: 1px solid var(--border-2);
  color: var(--accent);
  flex-shrink: 0;
  animation: reasoningPulse 2s ease-in-out infinite;
}
@keyframes reasoningPulse { 0%,100%{opacity:.85;} 50%{opacity:1;} }
#thinking-text {
  font-size: .82rem; color: var(--text-3); font-weight: 600;
  font-family: var(--font-mono); letter-spacing: .04em;
}

/* ══════════════════════════════════════════════════════════
   LOGO TRAVELER animation
══════════════════════════════════════════════════════════ */
#logo-traveler {
  position: fixed; z-index: 9998; pointer-events: none;
  width: 40px; height: 40px;
  opacity: 0; display: none;
}
#logo-traveler img {
  width: 100%; height: 100%; object-fit: contain; border-radius: 12px;
  filter: drop-shadow(0 0 16px var(--accent-glow));
}

/* ══════════════════════════════════════════════════════════
   ADDITIONAL GLOW ACCENTS on active elements
══════════════════════════════════════════════════════════ */
.auth-feat svg { filter: drop-shadow(0 0 5px currentColor); }
.cx-think-emblem img { animation: thinkPulse 2s ease-in-out infinite; }

/* Enhanced scrollbar for chat */
.chat-scroll::-webkit-scrollbar { width: 3px; }
.chat-scroll::-webkit-scrollbar-thumb { background: var(--border-2); }
.chat-scroll::-webkit-scrollbar-thumb:hover { background: var(--accent-mid); }
.sb-list::-webkit-scrollbar { width: 2px; }
.sb-list::-webkit-scrollbar-thumb { background: var(--border); }

/* Glow on send + focused composer */
.composer-box:focus-within .cx-reasoning-pill { border-color: var(--border-3); }

/* ══════════════════════════════════════════════════════════
   VOICE BUTTON in composer (cx-voice-btn indicator)
══════════════════════════════════════════════════════════ */
.cx-voice-btn.listening {
  color: var(--red) !important;
  background: var(--red-bg) !important;
  border-color: rgba(255,59,92,.3) !important;
  animation: voiceBtnPulse 1.1s ease-in-out infinite;
}
@keyframes voiceBtnPulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(255,59,92,.4); }
  50%      { box-shadow: 0 0 0 8px rgba(255,59,92,.0); }
}

/* ══════════════════════════════════════════════════════════
   VOICE CALL OVERLAY
══════════════════════════════════════════════════════════ */
.cx-voice-overlay {
  position: fixed; inset: 0; z-index: 8000;
  background: var(--bg);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 0;
  /* Subtle radial glow */
  background-image:
    radial-gradient(ellipse at 50% 40%, rgba(0,229,255,0.10) 0%, transparent 60%),
    radial-gradient(ellipse at 50% 80%, rgba(124,58,237,0.06) 0%, transparent 50%);
  animation: cxvIn .4s var(--ease-spring);
  overflow: hidden;
}
@keyframes cxvIn { from{opacity:0;transform:scale(.96);}to{opacity:1;transform:none;} }

/* Ambient rings */
.cxv-rings { position: absolute; inset: 0; pointer-events: none; display: flex; align-items: center; justify-content: center; }
.cxv-ring {
  position: absolute; border-radius: 50%;
  border: 1px solid var(--border-2);
  opacity: 0;
}
.cxv-ring-1 { width: 220px; height: 220px; }
.cxv-ring-2 { width: 320px; height: 320px; }
.cxv-ring-3 { width: 430px; height: 430px; }

/* Idle: slow pulse rings */
.cx-voice-overlay.idle .cxv-ring-1 { animation: cxvRingIdle 3.6s ease-out infinite 0s; }
.cx-voice-overlay.idle .cxv-ring-2 { animation: cxvRingIdle 3.6s ease-out infinite .9s; }
.cx-voice-overlay.idle .cxv-ring-3 { animation: cxvRingIdle 3.6s ease-out infinite 1.8s; }
@keyframes cxvRingIdle {
  0%   { transform:scale(.6); opacity:0; }
  30%  { opacity:.5; }
  100% { transform:scale(1.05); opacity:0; }
}

/* Listening: fast excited rings */
.cx-voice-overlay.listening .cxv-ring-1 { animation: cxvRingListen 1.4s ease-out infinite 0s; border-color: rgba(255,59,92,.4); }
.cx-voice-overlay.listening .cxv-ring-2 { animation: cxvRingListen 1.4s ease-out infinite .28s; border-color: rgba(255,59,92,.25); }
.cx-voice-overlay.listening .cxv-ring-3 { animation: cxvRingListen 1.4s ease-out infinite .56s; border-color: rgba(255,59,92,.15); }
@keyframes cxvRingListen {
  0%   { transform:scale(.55); opacity:0; }
  25%  { opacity:1; }
  100% { transform:scale(1.1); opacity:0; }
}

/* Speaking: smooth cyan rings */
.cx-voice-overlay.speaking .cxv-ring-1 { animation: cxvRingSpeak 2s ease-out infinite 0s; border-color: var(--accent-mid); }
.cx-voice-overlay.speaking .cxv-ring-2 { animation: cxvRingSpeak 2s ease-out infinite .5s; border-color: var(--border-2); }
.cx-voice-overlay.speaking .cxv-ring-3 { animation: cxvRingSpeak 2s ease-out infinite 1s; border-color: var(--border); }
@keyframes cxvRingSpeak {
  0%   { transform:scale(.6); opacity:0; }
  30%  { opacity:.8; }
  100% { transform:scale(1.08); opacity:0; }
}

/* Avatar */
.cxv-avatar {
  width: 96px; height: 96px; border-radius: 50%;
  background: var(--surface-2);
  border: 2px solid var(--border-2);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 24px; position: relative; z-index: 2;
  transition: border-color .3s, box-shadow .3s;
}
.cxv-avatar img { width: 54px; height: 54px; object-fit: contain; filter: drop-shadow(0 0 18px var(--accent-glow)); }
.cx-voice-overlay.speaking .cxv-avatar {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft), 0 0 40px var(--accent-glow);
}
.cx-voice-overlay.listening .cxv-avatar {
  border-color: var(--red);
  box-shadow: 0 0 0 4px var(--red-bg), 0 0 32px var(--rose-glow);
}

/* Status text */
.cxv-status {
  font-family: var(--font-brand); font-size: 1.1rem; font-weight: 700;
  color: var(--text-1); letter-spacing: -0.02em;
  margin-bottom: 10px; z-index: 2;
  min-height: 1.4em; text-align: center;
  transition: color .3s;
}
.cx-voice-overlay.listening .cxv-status { color: var(--red); }
.cx-voice-overlay.speaking  .cxv-status { color: var(--accent); }

/* Live transcript */
.cxv-transcript {
  font-size: .88rem; color: var(--text-3); text-align: center;
  max-width: 340px; line-height: 1.65; min-height: 2.6em;
  padding: 0 16px; z-index: 2;
  transition: color .2s;
  font-style: italic;
}
.cxv-transcript:not(:empty) { color: var(--text-2); font-style: normal; }

/* Waveform bars */
.cxv-wave {
  display: flex; align-items: center; justify-content: center;
  gap: 4px; height: 48px; margin: 18px 0 14px; z-index: 2;
}
.cxv-wave span {
  width: 3px; border-radius: 3px;
  background: var(--border-2);
  height: 6px;
  transform-origin: center bottom;
  transition: background .3s;
}
/* Listening: bars animate to voice amplitude */
.cx-voice-overlay.listening .cxv-wave span {
  background: var(--red);
  animation: cxvBar 0.6s ease-in-out infinite;
}
.cx-voice-overlay.listening .cxv-wave span:nth-child(1)  { animation-delay: 0s; }
.cx-voice-overlay.listening .cxv-wave span:nth-child(2)  { animation-delay: .04s; }
.cx-voice-overlay.listening .cxv-wave span:nth-child(3)  { animation-delay: .08s; }
.cx-voice-overlay.listening .cxv-wave span:nth-child(4)  { animation-delay: .12s; }
.cx-voice-overlay.listening .cxv-wave span:nth-child(5)  { animation-delay: .16s; }
.cx-voice-overlay.listening .cxv-wave span:nth-child(6)  { animation-delay: .20s; }
.cx-voice-overlay.listening .cxv-wave span:nth-child(7)  { animation-delay: .24s; height: 28px; }
.cx-voice-overlay.listening .cxv-wave span:nth-child(8)  { animation-delay: .20s; }
.cx-voice-overlay.listening .cxv-wave span:nth-child(9)  { animation-delay: .16s; }
.cx-voice-overlay.listening .cxv-wave span:nth-child(10) { animation-delay: .12s; }
.cx-voice-overlay.listening .cxv-wave span:nth-child(11) { animation-delay: .08s; }
.cx-voice-overlay.listening .cxv-wave span:nth-child(12) { animation-delay: .04s; }
.cx-voice-overlay.listening .cxv-wave span:nth-child(13) { animation-delay: 0s; }
.cx-voice-overlay.listening .cxv-wave span:nth-child(14) { animation-delay: .04s; }
.cx-voice-overlay.listening .cxv-wave span:nth-child(15) { animation-delay: .08s; }
@keyframes cxvBar {
  0%,100% { height: 6px; opacity:.7; }
  50%      { height: 34px; opacity:1; }
}
/* Speaking: gentle cyan bars */
.cx-voice-overlay.speaking .cxv-wave span {
  background: var(--accent);
  animation: cxvBarSpeak 1.2s ease-in-out infinite;
}
.cx-voice-overlay.speaking .cxv-wave span:nth-child(odd)  { animation-delay: 0s; }
.cx-voice-overlay.speaking .cxv-wave span:nth-child(even) { animation-delay: .3s; }
@keyframes cxvBarSpeak {
  0%,100% { height: 8px; opacity:.5; }
  50%      { height: 24px; opacity:1; }
}

/* Speaking row */
.cxv-speaking-row {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 16px; border-radius: var(--r-full);
  background: var(--accent-soft); border: 1px solid var(--border-2);
  margin-bottom: 8px; z-index: 2;
  animation: pillRise .3s var(--ease-spring);
}
.cxv-speaking-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent);
  animation: cxvDotPulse 1s ease-in-out infinite;
  box-shadow: 0 0 8px var(--accent-glow);
}
@keyframes cxvDotPulse { 0%,100%{transform:scale(.7);opacity:.6;}50%{transform:scale(1.2);opacity:1;} }
.cxv-speaking-label { font-size: .8rem; font-weight: 600; color: var(--accent); font-family: var(--font-mono); }
.cxv-stop-tts { color: var(--accent); opacity: .7; transition: opacity .2s; }
.cxv-stop-tts:hover { opacity: 1; }

/* Controls */
.cxv-controls {
  display: flex; align-items: center; justify-content: center;
  gap: 32px; z-index: 2; margin-top: 8px;
}

/* Big mic button */
.cxv-mic-btn {
  width: 76px; height: 76px; border-radius: 50%;
  background: var(--surface-2);
  border: 2px solid var(--border-2);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-2);
  transition: transform .2s var(--ease-spring), border-color .2s, background .2s, box-shadow .2s, color .2s;
  position: relative;
}
.cxv-mic-btn:hover { border-color: var(--accent); color: var(--accent); transform: scale(1.06); }
.cxv-mic-btn:active { transform: scale(.94); }
.cxv-mic-btn.listening {
  background: var(--red-bg);
  border-color: var(--red);
  color: var(--red);
  box-shadow: 0 0 0 6px rgba(255,59,92,.15), 0 0 30px var(--rose-glow);
  animation: cxvMicPulse 1.2s ease-in-out infinite;
}
@keyframes cxvMicPulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(255,59,92,.4), 0 0 20px var(--rose-glow); }
  50%      { box-shadow: 0 0 0 14px rgba(255,59,92,.0), 0 0 40px var(--rose-glow); }
}

/* End call button */
.cxv-end-btn {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--red-bg);
  border: 2px solid rgba(255,59,92,.3);
  display: flex; align-items: center; justify-content: center;
  color: var(--red);
  transition: transform .2s var(--ease-spring), background .2s, box-shadow .2s;
}
.cxv-end-btn:hover { background: var(--red); color: #fff; transform: scale(1.08); box-shadow: 0 4px 20px var(--rose-glow); }
.cxv-end-btn:active { transform: scale(.92); }

/* Hint */
.cxv-hint {
  font-size: .76rem; color: var(--text-4); text-align: center;
  margin-top: 20px; z-index: 2;
  font-family: var(--font-mono); letter-spacing: .03em;
}

/* Processing state (sent to AI, waiting) */
.cx-voice-overlay.processing .cxv-status { color: var(--violet); }
.cx-voice-overlay.processing .cxv-ring-1 { animation: cxvRingSpeak 1.6s ease-out infinite 0s; border-color: rgba(124,58,237,.4); }
.cx-voice-overlay.processing .cxv-ring-2 { animation: cxvRingSpeak 1.6s ease-out infinite .4s; border-color: rgba(124,58,237,.25); }
.cx-voice-overlay.processing .cxv-ring-3 { animation: cxvRingSpeak 1.6s ease-out infinite .8s; border-color: rgba(124,58,237,.15); }
.cx-voice-overlay.processing .cxv-avatar { border-color: var(--violet); box-shadow: 0 0 0 4px var(--violet-soft), 0 0 40px var(--violet-glow); }
.cx-voice-overlay.processing .cxv-wave span { background: var(--violet); animation: cxvBarSpeak 1.4s ease-in-out infinite; }

/* ================================================================
   CYANIX AI — IMPROVEMENTS PATCH v2.0
   Light/Dark mode chips, Complix Neon, Voice chips, Avatar, Font
================================================================ */

/* ── Theme chip selector ─────────────────────────────────── */
.theme-chip-group {
  display: flex; gap: 8px; flex-wrap: wrap;
}
.theme-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: var(--r-full);
  border: 1.5px solid var(--border-2);
  background: var(--surface-2); color: var(--text-2);
  font-size: .8rem; font-weight: 600; cursor: pointer;
  transition: border-color .18s, background .18s, color .18s, box-shadow .18s;
  font-family: var(--font);
}
.theme-chip svg { opacity: .65; transition: opacity .18s; flex-shrink: 0; }
.theme-chip.active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.theme-chip.active svg { opacity: 1; }
.theme-chip:hover:not(.active) {
  border-color: var(--border-3);
  background: var(--surface-3);
  color: var(--text-1);
}

/* ── Voice gender chip (inherits theme-chip) ─────────────── */
.voice-gender-chip.active {
  border-color: var(--violet);
  background: var(--violet-soft);
  color: var(--violet);
  box-shadow: 0 0 0 3px var(--violet-soft);
}

/* ── Complix Neon dark UI override ───────────────────────── */
[data-complix-neon="1"] {
  --bg:        #04000f;
  --surface:   #080018;
  --surface-2: #0d0026;
  --surface-3: #120033;
  --surface-4: #180040;
  --border:    rgba(170,0,255,0.10);
  --border-2:  rgba(170,0,255,0.22);
  --border-3:  rgba(170,0,255,0.38);
  --text-1:    #f0e0ff;
  --text-2:    #c090e8;
  --text-3:    #8040b0;
  --text-4:    #4a1870;
  --accent:    #aa00ff;
  --accent-dim:#8800cc;
  --accent-glow: rgba(170,0,255,0.28);
  --accent-soft: rgba(170,0,255,0.09);
  --accent-mid:  rgba(170,0,255,0.18);
  --accent-high: rgba(170,0,255,0.32);
  --violet:    #00e5ff;
  --rose:      #ff2d78;
  --glass-bg:  rgba(4,0,15,0.92);
  --glass-border: rgba(170,0,255,0.14);
  --grad-accent: linear-gradient(135deg, #aa00ff, #ff2d78);
  --sh-accent: 0 0 0 1px rgba(170,0,255,0.22), 0 4px 24px rgba(170,0,255,0.32);
}
[data-complix-neon="1"] body {
  background: var(--bg);
}
[data-complix-neon="1"] .topbar {
  background: rgba(4,0,15,0.95);
  border-bottom-color: rgba(170,0,255,0.14);
}
[data-complix-neon="1"] .sidebar {
  background: rgba(8,0,24,0.97);
  border-right-color: rgba(170,0,255,0.10);
}
[data-complix-neon="1"] .composer-box {
  background: rgba(4,0,15,0.90);
  border-color: rgba(170,0,255,0.22);
  box-shadow: 0 0 40px rgba(170,0,255,0.15), 0 0 0 1px rgba(170,0,255,0.12);
}
[data-complix-neon="1"] .cx-complix-btn--on {
  background: linear-gradient(135deg, #aa00ff, #ff2d78) !important;
  color: #fff !important;
  box-shadow: 0 0 20px rgba(170,0,255,0.5), 0 0 40px rgba(255,45,120,0.2) !important;
  animation: complixNeonPulse 2s ease-in-out infinite;
}
[data-complix-neon="1"] .welcome-heading {
  background: linear-gradient(135deg, #aa00ff, #ff2d78, #00e5ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
[data-complix-neon="1"] .send-btn, [data-complix-neon="1"] .auth-btn {
  background: linear-gradient(135deg, #8800cc, #aa00ff);
}
[data-complix-neon="1"] .cx-reasoning-pill {
  background: rgba(170,0,255,0.12);
  border-color: rgba(170,0,255,0.28);
  color: #c860ff;
}
[data-complix-neon="1"] .msg-row:not(.user) .msg-bubble {
  border-left: 2px solid rgba(170,0,255,0.3);
}
@keyframes complixNeonPulse {
  0%,100% { box-shadow: 0 0 20px rgba(170,0,255,0.5), 0 0 40px rgba(255,45,120,0.2); }
  50%     { box-shadow: 0 0 30px rgba(170,0,255,0.8), 0 0 60px rgba(255,45,120,0.4); }
}

/* ── Avatar in settings — proper sizing with bg-image ───── */
.stg-avatar-el {
  width: 64px !important; height: 64px !important;
  border-radius: 50%;
  background-size: cover !important;
  background-position: center !important;
  background-repeat: no-repeat !important;
  font-size: 1.4rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  transition: opacity .2s;
  border: 2.5px solid var(--border-2);
  flex-shrink: 0;
}
.stg-avatar-wrap {
  position: relative; width: 64px; height: 64px; flex-shrink: 0;
}
.stg-avatar-wrap:hover .stg-avatar-el { opacity: .8; }

/* ── Font size label fix (was font-size-desc, now font-size-label) */
#font-size-label { font-size: .78rem; color: var(--text-3); margin-top: 1px; }

/* ── Settings scroll area ────────────────────────────────── */
.settings-scroll {
  flex: 1; overflow-y: auto; padding: 16px;
  -webkit-overflow-scrolling: touch;
}
.settings-scroll .settings-group-label { margin-top: 18px; }
.settings-scroll .settings-group-label:first-child { margin-top: 0; }

/* ── Clash Display font preload ──────────────────────────── */
@font-face {
  font-family: 'Clash Display';
  src: url('https://api.fontshare.com/v2/css?f[]=clash-display@400,500,600,700&display=swap');
  font-display: swap;
}

/* ══════════════════════════════════════════════════════════
   NEW FEATURE STYLES — offline / verify / session / skeleton
   / toast-queue / retry / focus-trap / sr-only
══════════════════════════════════════════════════════════ */

/* ── Screen-reader only utility ──────────────────────────── */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ── Offline Banner ──────────────────────────────────────── */
.offline-banner {
  position: fixed; top: 0; left: 0; right: 0; z-index: 10100;
  display: flex; align-items: center; gap: 10px;
  padding: 10px 16px;
  background: #1a1000;
  border-bottom: 1px solid rgba(255,180,0,.28);
  color: #f0c040;
  font-size: .82rem; font-weight: 600;
  animation: slideDown .3s var(--ease-spring);
  backdrop-filter: var(--glass-blur);
}
.offline-banner svg { flex-shrink: 0; color: #f0c040; }
.offline-banner.hidden { display: none !important; }

/* ── Email Verification Banner ───────────────────────────── */
.verify-banner {
  position: fixed; top: 0; left: 0; right: 0; z-index: 10090;
  display: flex; align-items: center; gap: 10px;
  padding: 10px 16px;
  background: rgba(37,99,235,.12);
  border-bottom: 1px solid rgba(37,99,235,.28);
  color: var(--text-2);
  font-size: .82rem;
  backdrop-filter: var(--glass-blur);
  animation: slideDown .3s var(--ease-spring);
}
.verify-banner svg { flex-shrink: 0; color: var(--accent); }
.verify-banner span { flex: 1; }
.verify-resend-btn {
  padding: 4px 12px; border-radius: var(--r-full);
  background: var(--accent); color: var(--text-inv);
  font-size: .78rem; font-weight: 700; flex-shrink: 0;
}
.verify-banner-x {
  width: 24px; height: 24px; border-radius: 50%;
  background: transparent; color: var(--text-3);
  font-size: 16px; display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; line-height: 1;
}
.verify-banner-x:hover { background: var(--surface-3); color: var(--text-1); }
.verify-banner.hidden { display: none !important; }

/* ── Session Expiry Banner ───────────────────────────────── */
.session-expiry-banner {
  position: fixed; top: 0; left: 0; right: 0; z-index: 10080;
  display: flex; align-items: center; gap: 10px;
  padding: 10px 16px;
  background: rgba(124,58,237,.14);
  border-bottom: 1px solid rgba(124,58,237,.30);
  color: var(--text-2);
  font-size: .82rem;
  backdrop-filter: var(--glass-blur);
  animation: slideDown .3s var(--ease-spring);
}
.session-expiry-banner svg { flex-shrink: 0; color: var(--violet); }
.session-expiry-banner span { flex: 1; }
.session-refresh-btn {
  padding: 4px 12px; border-radius: var(--r-full);
  background: var(--violet); color: #fff;
  font-size: .78rem; font-weight: 700; flex-shrink: 0;
}
.session-expiry-banner.hidden { display: none !important; }

/* ── Stacked banner offsets ──────────────────────────────── */
/* JS will set --banner-offset on body to push chat topbar down */
body { --banner-offset: 0px; }
.topbar, .view-chat .topbar { top: var(--banner-offset, 0px); }

/* ── Chat Skeleton ───────────────────────────────────────── */
.chat-skeleton {
  display: flex; flex-direction: column; gap: 24px;
  padding: 32px 16px; max-width: var(--msg-max); margin: 0 auto;
}
.chat-skeleton.hidden { display: none !important; }
.skel-row { display: flex; }
.skel-row--ai  { justify-content: flex-start; }
.skel-row--user { justify-content: flex-end; }
.skel-bubble {
  display: flex; flex-direction: column; gap: 8px;
  padding: 14px 18px; border-radius: var(--r-lg);
  max-width: 72%;
}
.skel-bubble--ai  { background: var(--surface-2); border-radius: var(--r-lg) var(--r-lg) var(--r-lg) var(--r-xs); }
.skel-bubble--user { background: var(--surface-3); border-radius: var(--r-lg) var(--r-lg) var(--r-xs) var(--r-lg); }
.skel-line {
  height: 12px; border-radius: var(--r-full);
  background: linear-gradient(90deg, var(--surface-3) 25%, var(--surface-4) 50%, var(--surface-3) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.6s infinite linear;
}
.skel-line--30  { width: 30%; }
.skel-line--40  { width: 40%; }
.skel-line--50  { width: 50%; }
.skel-line--55  { width: 55%; }
.skel-line--60  { width: 60%; }
.skel-line--70  { width: 70%; }
.skel-line--80  { width: 80%; }
.skel-line--90  { width: 90%; }
@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── Retry Bar ───────────────────────────────────────────── */
.retry-bar {
  position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%);
  display: flex; align-items: center; gap: 10px;
  padding: 9px 16px; margin-bottom: 8px;
  background: rgba(255,59,92,.12);
  border: 1px solid rgba(255,59,92,.28);
  border-radius: var(--r-lg);
  color: var(--text-2); font-size: .82rem;
  white-space: nowrap;
  box-shadow: var(--sh-sm);
  z-index: 20;
  animation: fadeUp .25s var(--ease-spring);
}
.retry-bar.hidden { display: none !important; }
.retry-bar svg { color: var(--red); flex-shrink: 0; }
.retry-btn {
  padding: 4px 12px; border-radius: var(--r-full);
  background: var(--red); color: #fff;
  font-size: .78rem; font-weight: 700; flex-shrink: 0;
}
.retry-dismiss-btn {
  width: 22px; height: 22px; border-radius: 50%;
  background: transparent; color: var(--text-3);
  font-size: 15px; display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; line-height: 1;
}
.retry-dismiss-btn:hover { background: var(--surface-3); color: var(--text-1); }
@keyframes fadeUp {
  from { opacity: 0; transform: translateX(-50%) translateY(8px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ── Toast Queue ─────────────────────────────────────────── */
.toast-container {
  position: fixed; bottom: 80px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; gap: 8px;
  align-items: center; z-index: 9999;
  pointer-events: none;
}
.toast-item {
  padding: 10px 20px;
  background: var(--surface-4);
  border: 1px solid var(--border-2);
  border-radius: var(--r-full);
  font-size: .85rem; font-weight: 600; color: var(--text-1);
  box-shadow: var(--sh-lg);
  pointer-events: auto;
  animation: toastIn .28s var(--ease-spring) both;
  backdrop-filter: var(--glass-blur);
  max-width: min(360px, 90vw);
  text-align: center;
}
.toast-item.toast-out {
  animation: toastOut .22s var(--ease) forwards;
}
.toast-item[data-type="err"]     { border-color: rgba(255,59,92,.40); color: #ff6b8a; }
.toast-item[data-type="ok"]      { border-color: rgba(0,255,163,.30); color: var(--green-text); }
.toast-item[data-type="warning"] { border-color: rgba(255,180,0,.35); color: #f0c040; }
@keyframes toastIn  { from{opacity:0;transform:translateY(12px) scale(.94);}to{opacity:1;transform:none;} }
@keyframes toastOut { from{opacity:1;transform:none;}to{opacity:0;transform:translateY(-8px) scale(.95);} }

/* ── Memory save indicator ───────────────────────────────── */
.memory-saving-pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 10px; border-radius: var(--r-full);
  background: rgba(0,255,163,.08);
  border: 1px solid rgba(0,255,163,.20);
  color: var(--green-text);
  font-size: .74rem; font-weight: 600; font-family: var(--font-mono);
  animation: fadeIn .2s var(--ease) both;
  pointer-events: none;
}
.memory-saving-pill .ms-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--green-text);
  animation: msPulse 1s ease-in-out infinite;
}
@keyframes msPulse { 0%,100%{opacity:1;} 50%{opacity:.3;} }
@keyframes fadeIn  { from{opacity:0;}to{opacity:1;} }

/* ── Sign-in rate limit lockout ──────────────────────────── */
.auth-lockout-msg {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px; border-radius: var(--r);
  background: var(--red-bg); border: 1px solid rgba(255,59,92,.28);
  color: var(--red); font-size: .82rem; font-weight: 600;
  margin-top: 8px;
}
.auth-lockout-msg.hidden { display: none !important; }

/* ── Composer draft restore pill ─────────────────────────── */
.draft-restore-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 4px 12px 4px 10px; border-radius: var(--r-full);
  background: var(--surface-3); border: 1px solid var(--border-2);
  color: var(--text-3); font-size: .78rem;
  margin-bottom: 4px; align-self: flex-start;
  cursor: pointer; transition: background .15s;
}
.draft-restore-pill:hover { background: var(--surface-4); color: var(--text-2); }
.draft-restore-pill svg  { flex-shrink: 0; }

/* ── Sidebar chat-list skeleton ──────────────────────────── */
.sb-list-skeleton {
  display: flex; flex-direction: column; gap: 6px; padding: 4px 8px;
}
.sb-skel-item {
  height: 38px; border-radius: var(--r);
  background: linear-gradient(90deg, var(--surface-2) 25%, var(--surface-3) 50%, var(--surface-2) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.6s infinite linear;
}
.sb-skel-item:nth-child(2) { width: 85%; animation-delay: .1s; }
.sb-skel-item:nth-child(3) { width: 70%; animation-delay: .2s; }

/* ── Focus trap overlay for modals ───────────────────────── */
/* All modals/dialogs already have aria-modal; the JS focus trap
   logic handles tabbing — no extra CSS needed beyond this sentinel */
[data-focus-trap-sentinel] {
  position: absolute; width: 0; height: 0;
  overflow: hidden; opacity: 0; pointer-events: none;
}

/* ══════════════════════════════════════════════════════════
   CYANIX AI — v18.1 ENHANCEMENTS
   Streaming states · Inline retry · Context pill ·
   Model topbar badge · Smart placeholder · Error bubbles
══════════════════════════════════════════════════════════ */

/* ── Inline message error & retry ────────────────────────── */
.msg-error-row {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 10px 6px 14px;
  border-left: 2px solid var(--red);
  background: var(--red-bg);
  border-radius: 0 var(--r) var(--r) 0;
  margin: 4px 0;
  animation: msgIn .3s var(--ease-spring);
}
.msg-error-icon { color: var(--red); flex-shrink: 0; }
.msg-error-text { font-size: .82rem; color: var(--red); flex: 1; font-family: var(--font-mono); }
.msg-retry-btn {
  display: flex; align-items: center; gap: 5px;
  padding: 4px 11px; border-radius: var(--r-full);
  background: var(--red-bg); border: 1px solid rgba(255,59,92,.3);
  color: var(--red); font-size: .75rem; font-weight: 700;
  font-family: var(--font-mono); letter-spacing: .02em;
  transition: background .15s, transform .18s var(--ease-spring);
  flex-shrink: 0;
}
.msg-retry-btn:hover { background: rgba(255,59,92,.2); transform: translateY(-1px); }
.msg-retry-btn:active { transform: scale(.93); }

/* ── Context window / depth indicator ────────────────────── */
.cx-ctx-pill {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 10px; border-radius: var(--r-full);
  background: var(--surface-2); border: 1px solid var(--border);
  color: var(--text-4); font-size: .7rem; font-weight: 600;
  font-family: var(--font-mono); letter-spacing: .04em;
  cursor: default; transition: border-color .2s, color .2s;
  white-space: nowrap;
}
.cx-ctx-pill svg { opacity: .6; flex-shrink: 0; }
.cx-ctx-pill:hover { border-color: var(--border-2); color: var(--text-3); }

/* Context separator shown when context is being truncated */
.cx-ctx-separator {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 0; max-width: var(--msg-max); margin: 0 auto; width: 100%;
}
.cx-ctx-separator::before,
.cx-ctx-separator::after {
  content: ''; flex: 1; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-2), transparent);
}
.cx-ctx-sep-label {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: .7rem; color: var(--text-4); font-family: var(--font-mono);
  white-space: nowrap; padding: 2px 10px;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--r-full);
}

/* ── Active model badge in topbar ────────────────────────── */
.topbar-model-badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 10px 3px 8px; border-radius: var(--r-full);
  background: var(--surface-2); border: 1px solid var(--border);
  color: var(--text-3); font-size: .7rem; font-weight: 700;
  font-family: var(--font-mono); letter-spacing: .04em;
  transition: background .2s, border-color .2s, color .2s;
  cursor: pointer; white-space: nowrap;
  max-width: 140px; overflow: hidden; text-overflow: ellipsis;
}
.topbar-model-badge .tmb-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent); flex-shrink: 0;
  box-shadow: 0 0 6px var(--accent-glow);
  animation: tmbPulse 2.8s ease-in-out infinite;
}
@keyframes tmbPulse {
  0%,100% { opacity: 1; box-shadow: 0 0 6px var(--accent-glow); }
  50%      { opacity: .5; box-shadow: 0 0 10px var(--accent-glow); }
}
.topbar-model-badge:hover {
  background: var(--accent-soft); border-color: var(--accent); color: var(--accent);
}

/* ── Smart / rotating placeholder animation ───────────────── */
@keyframes placeholderFade {
  0%   { opacity: 0; transform: translateY(4px); }
  15%  { opacity: 1; transform: none; }
  80%  { opacity: 1; transform: none; }
  100% { opacity: 0; transform: translateY(-4px); }
}
.composer-input.placeholder-cycling::placeholder { animation: placeholderFade 3.5s var(--ease) forwards; }

/* ── RAG / tool pill variants ─────────────────────────────── */
.rag-pill.wiki  { background: rgba(59,130,246,.08); color: #60a5fa; border-color: rgba(59,130,246,.2); }
.rag-pill.groq  { background: rgba(16,185,129,.08); color: #34d399; border-color: rgba(16,185,129,.2); }
.rag-pill.cot   { background: rgba(245,158,11,.08); color: #fbbf24; border-color: rgba(245,158,11,.2); }
.rag-pill.mem   { background: rgba(124,58,237,.08); color: #a78bfa; border-color: rgba(124,58,237,.2); }

/* Live dot inside pill */
.rag-pill-dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: currentColor; flex-shrink: 0;
  animation: ragDotPulse 1.5s ease-in-out infinite;
  box-shadow: 0 0 5px currentColor;
}
@keyframes ragDotPulse {
  0%,100% { opacity: 1; } 50% { opacity: .3; }
}

/* ── Capability badge strip on welcome ────────────────────── */
/* Already has .welcome-cap-badge — this enhances hover */
.welcome-cap-badge {
  transition: background .18s, border-color .18s, color .18s, transform .18s var(--ease-spring);
}
.welcome-cap-badge:hover {
  background: var(--accent-soft); border-color: var(--border-2); color: var(--accent);
  transform: translateY(-1px);
}

/* ── Sidebar search box ───────────────────────────────────── */
.sb-search-wrap {
  padding: 6px 10px 2px;
}
.sb-search {
  width: 100%; padding: 7px 12px 7px 32px;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--r-full); font-size: .82rem; color: var(--text-2);
  outline: none; transition: border-color .2s, background .2s;
  position: relative;
}
.sb-search:focus { border-color: var(--accent); background: var(--surface-3); }
.sb-search-icon {
  position: absolute; left: 20px; top: 50%; transform: translateY(-50%);
  color: var(--text-4); pointer-events: none;
}
.sb-search-row { position: relative; }

/* ── Topbar streaming indicator ───────────────────────────── */
.topbar-streaming-badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 2px 10px; border-radius: var(--r-full);
  background: var(--accent-soft); border: 1px solid var(--border-2);
  color: var(--accent); font-size: .7rem; font-weight: 700;
  font-family: var(--font-mono); animation: pillIn .22s var(--ease-spring);
}
.tsb-dots { display: flex; gap: 3px; }
.tsb-dots span {
  width: 3px; height: 3px; border-radius: 50%; background: var(--accent);
  animation: thinkDot 1.1s ease-in-out infinite;
}
.tsb-dots span:nth-child(2) { animation-delay: .18s; }
.tsb-dots span:nth-child(3) { animation-delay: .36s; }

/* ── Message feedback glow on thumbs ──────────────────────── */
.msg-action-btn.voted-up   { color: var(--green-text); border-color: var(--green-text); background: var(--green-bg); }
.msg-action-btn.voted-down { color: var(--red); border-color: rgba(255,59,92,.3); background: var(--red-bg); }

/* ── Dark theme AI bubble override ───────────────────────── */
[data-theme="dark"] .msg-row:not(.user) .msg-bubble {
  background: transparent; color: var(--text-1);
  border-left-color: rgba(0,229,255,.12);
}
[data-theme="dark"] .msg-row:not(.user) .msg-bubble.streaming {
  border-left-color: var(--accent);
}

/* ── Neon theme AI bubble override ───────────────────────── */
[data-theme="neon"] .msg-row:not(.user) .msg-bubble {
  border-left-color: rgba(200,64,255,.18);
}
[data-theme="neon"] .msg-row:not(.user) .msg-bubble.streaming {
  border-left-color: var(--accent);
}

/* ── Midnight theme AI bubble override ───────────────────── */
[data-theme="midnight"] .msg-row:not(.user) .msg-bubble {
  border-left-color: rgba(68,136,255,.18);
}


/* ══════════════════════════════════════════════════════════
   PERFORMANCE & RELIABILITY ENHANCEMENTS — v19
   Mobile perf · GPU accel · CSS containment · Reduced motion
   Reliability polish · "Real AI" premium feel
══════════════════════════════════════════════════════════ */

/* ── GPU Acceleration for key interactive elements ──────── */
.sidebar,
.composer-box,
.topbar,
.msg-row,
.welcome-card,
.chat-item,
.send-btn,
.auth-btn {
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

/* ── CSS Containment — prevent layout thrash during streaming */
.messages {
  contain: layout style;
}
.msg-row {
  contain: layout style;
  content-visibility: auto;
  contain-intrinsic-size: auto 80px;
}
.chat-item {
  contain: layout style;
}

/* ── Reduce expensive effects on mobile/low-end devices ──── */
@media (max-width: 700px) {
  /* Simplify topbar blur on mobile */
  .topbar {
    backdrop-filter: blur(12px) saturate(130%);
    -webkit-backdrop-filter: blur(12px) saturate(130%);
  }
  /* Reduce sidebar overhead */
  .sidebar {
    backdrop-filter: none;
  }
  /* Composer: lighter glass */
  .composer-box {
    backdrop-filter: blur(10px) saturate(120%);
    -webkit-backdrop-filter: blur(10px) saturate(120%);
  }
  /* Disable expensive welcome animations on mobile */
  .welcome-glow {
    display: none;
  }
  /* Simpler card hover — no translateY on mobile (causes scroll jank) */
  .welcome-card:hover {
    transform: none;
    box-shadow: 0 4px 16px rgba(0,0,0,.3);
  }
  /* Disable welcome emblem float on mobile */
  .welcome-emblem {
    animation: none !important;
  }
  /* Reduce auth orb blur cost */
  .auth-orb {
    filter: blur(60px);
  }
  /* Disable heavy orbit animations on mobile */
  .cx-orbit-wrap {
    display: none;
  }
}

/* ── Respect prefers-reduced-motion ──────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .msg-row {
    animation: none;
  }
  .welcome > * {
    animation: none;
    opacity: 1;
  }
  .thinking-dots span {
    animation: none;
    opacity: 0.6;
  }
  .splash-emblem {
    animation: none;
  }
  .welcome-emblem {
    animation: none !important;
  }
}

/* ── Streaming: only animate the pulse during active stream ─ */
/* Non-streaming state: no animation (was re-applied in :not(.streaming)) */
.msg-row:not(.user) .msg-bubble:not(.streaming) {
  animation: none !important;
}

/* ── Virtualization sentinel (shown when old msgs are hidden) */
.cx-virt-sentinel {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 0;
  color: var(--text-4); font-size: .72rem;
  font-family: var(--font-mono); letter-spacing: .04em;
  justify-content: center;
  user-select: none;
}
.cx-virt-sentinel::before,
.cx-virt-sentinel::after {
  content: ''; flex: 1; height: 1px;
  background: var(--border);
}

/* ── Performance: message load skeleton enhancement ──────── */
.skel-bubble--ai,
.skel-bubble--user {
  contain: layout style;
}

/* ── Offline mode visual polish ──────────────────────────── */
.offline-banner {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 10001;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 16px;
  background: rgba(255,200,64,.12);
  border-top: 1px solid rgba(255,200,64,.25);
  color: #f0c040; font-size: .8rem; font-weight: 600;
  backdrop-filter: blur(10px);
  animation: slideUp .3s var(--ease-spring);
}
@keyframes slideUp { from{transform:translateY(100%);}to{transform:none;} }

/* ── Fast-mode indicator (when using lightweight model) ──── */
.cx-fast-mode-pill {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 2px 10px; border-radius: var(--r-full);
  background: rgba(0,255,163,.08); border: 1px solid rgba(0,255,163,.2);
  color: var(--green-text); font-size: .7rem; font-weight: 700;
  font-family: var(--font-mono); letter-spacing: .04em;
}

/* ── Intelligent token budget indicator ──────────────────── */
.cx-token-bar {
  height: 2px; border-radius: var(--r-full); overflow: hidden;
  background: var(--surface-3); margin: 4px 0;
  contain: layout style;
}
.cx-token-bar-fill {
  height: 100%; border-radius: var(--r-full);
  background: var(--grad-accent);
  transition: width .4s var(--ease);
  transform-origin: left;
}
.cx-token-bar-fill.warn { background: linear-gradient(90deg, var(--accent), #f0c040); }
.cx-token-bar-fill.critical { background: linear-gradient(90deg, #f0c040, var(--red)); }

/* ── Memory context compression indicator ────────────────── */
.cx-mem-compressed {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 1px 8px; border-radius: var(--r-full);
  background: rgba(124,58,237,.08); border: 1px solid rgba(124,58,237,.18);
  color: var(--violet); font-size: .68rem; font-family: var(--font-mono);
}

/* ── Retry bar polish ────────────────────────────────────── */
.retry-bar {
  contain: layout style;
}

/* ── Reduced-paint chat scroll ───────────────────────────── */
.chat-scroll {
  will-change: scroll-position;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-y: contain;
}

/* ── Thinking row: contain layout ────────────────────────── */
.thinking-row {
  contain: layout style;
  will-change: contents;
}

/* ── Smooth instant composer resize ─────────────────────────*/
.composer-input {
  overflow: hidden;
  resize: none;
}

/* ── Agent mode UI ───────────────────────────────────────── */
.cx-agent-indicator {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px; border-radius: var(--r-full);
  background: linear-gradient(135deg, rgba(0,229,255,.08), rgba(124,58,237,.08));
  border: 1px solid rgba(0,229,255,.18);
  color: var(--text-2); font-size: .74rem; font-weight: 700;
  font-family: var(--font-mono); letter-spacing: .04em;
  animation: agentPulse 2.4s ease-in-out infinite;
}
.cx-agent-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--grad-accent); flex-shrink: 0;
}
@keyframes agentPulse {
  0%,100% { border-color: rgba(0,229,255,.18); }
  50% { border-color: rgba(0,229,255,.36); }
}

/* ── Context depth visual feedback ──────────────────────── */
.cx-ctx-depth-badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 8px; border-radius: var(--r-full);
  background: var(--surface-2); border: 1px solid var(--border);
  color: var(--text-4); font-size: .68rem; font-family: var(--font-mono);
  transition: border-color .2s, color .2s;
}
.cx-ctx-depth-badge[data-depth="deep"] { border-color: var(--border-3); color: var(--accent); }
.cx-ctx-depth-badge[data-depth="standard"] { border-color: var(--border-2); color: var(--text-3); }

/* ── Message streaming cursor ────────────────────────────── */
@keyframes cursorBlink {
  0%,100% { opacity: 1; }
  50% { opacity: 0; }
}
.streaming-cursor {
  display: inline-block;
  width: 2px; height: 1em;
  background: var(--accent);
  margin-left: 1px;
  vertical-align: text-bottom;
  border-radius: 1px;
  animation: cursorBlink 1s ease-in-out infinite;
  box-shadow: 0 0 6px var(--accent-glow);
}

/* ── Performance: prevent costly paint during chat scroll ── */
@media (max-width: 700px) {
  .msg-row:not(.user) .msg-bubble::before {
    display: none; /* remove gradient overlay on mobile */
  }
  .sidebar::after {
    display: none; /* remove decorative line on mobile */
  }
  .topbar::after {
    display: none; /* remove gradient underline on mobile */
  }
  .composer-area::before {
    display: none; /* remove gradient overline on mobile */
  }
}

/* ── Better focus visible for accessibility ──────────────── */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--r-sm);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

/* ── Improved skeleton loading ───────────────────────────── */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.skel-line, .sb-skel-item {
  animation: shimmer 1.8s ease-in-out infinite;
  background: linear-gradient(90deg, var(--surface-2) 25%, var(--surface-3) 50%, var(--surface-2) 75%);
  background-size: 200% 100%;
}

/* ── Multi-toast container (stacking toasts) ─────────────── */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 16px;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
  max-width: 340px;
}
.toast-item {
  pointer-events: auto;
  padding: 10px 16px;
  border-radius: var(--r-xl);
  background: var(--surface-3);
  border: 1px solid var(--border-2);
  color: var(--text-1);
  font-size: .83rem;
  font-weight: 500;
  box-shadow: var(--sh-lg);
  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
  animation: toastIn .28s var(--ease-spring);
  contain: layout style;
  transform: translateZ(0);
}
.toast-item[data-type="err"]     { border-color: rgba(255,59,92,.3); background: rgba(255,59,92,.10); color: var(--red); }
.toast-item[data-type="ok"]      { border-color: rgba(0,255,163,.2); background: rgba(0,255,163,.08); color: var(--green-text); }
.toast-item[data-type="warning"] { border-color: rgba(255,200,64,.25); background: rgba(255,200,64,.08); color: #f0c040; }
@keyframes toastIn  { from{opacity:0;transform:translateY(12px) scale(.95);}to{opacity:1;transform:none;} }
.toast-out { animation: toastOut .22s var(--ease) forwards; }
@keyframes toastOut { to{opacity:0;transform:translateY(6px) scale(.96);} }

/* ── fonts-loaded guard to prevent FOUT layout shift ──────── */
html:not(.fonts-loaded) .welcome-heading,
html:not(.fonts-loaded) .auth-sheet-title,
html:not(.fonts-loaded) .sb-brand {
  font-family: system-ui, sans-serif;
}