/* =========================================================
   ShaT — global stylesheet
   Themes: midnight (default), aurora, paper, terminal, rose
   ========================================================= */

:root,
[data-theme="midnight"] {
  --bg-0: #07080f;
  --bg-1: #0b0c14;
  --bg-2: #11131f;
  --bg-3: #171a2a;
  --bg-elev: #161927;
  --line: #232744;
  --line-soft: #1b1e30;
  --text: #e7e9f3;
  --text-dim: #9aa0bd;
  --text-mute: #6a708f;
  --primary: #7c5cff;
  --primary-2: #5b8bff;
  --accent: #26d0ce;
  --danger: #ff5d6c;
  --warning: #ffb547;
  --success: #6bd968;
  --grad-1: linear-gradient(135deg, #7c5cff 0%, #26d0ce 100%);
  --grad-2: linear-gradient(135deg, #ff6ec4 0%, #7c5cff 100%);
  --grad-bg: radial-gradient(1200px 600px at 70% -10%, rgba(124,92,255,.18), transparent 60%),
             radial-gradient(900px 500px at -10% 30%, rgba(38,208,206,.12), transparent 60%);
  --shadow: 0 12px 40px -16px rgba(0,0,0,.6), 0 2px 8px rgba(0,0,0,.4);
  --radius: 14px;
  --radius-sm: 10px;
}

[data-theme="aurora"] {
  --bg-0:#07101b; --bg-1:#0a1422; --bg-2:#101d31; --bg-3:#16273f; --bg-elev:#13223a;
  --line:#1e3658; --line-soft:#172a44;
  --text:#e6f1ff; --text-dim:#92aacb; --text-mute:#5a708e;
  --primary:#3ddcc4; --primary-2:#5cb6ff; --accent:#a78bfa;
}
[data-theme="paper"] {
  --bg-0:#f5f3ee; --bg-1:#ffffff; --bg-2:#f7f5f0; --bg-3:#efece4; --bg-elev:#ffffff;
  --line:#e3ddcd; --line-soft:#ece6d6;
  --text:#1c1c1c; --text-dim:#5a5a5a; --text-mute:#8b8b8b;
  --primary:#ff6e3c; --primary-2:#1d4ed8; --accent:#0ea5e9;
  --grad-bg:none;
  --shadow: 0 10px 30px -16px rgba(0,0,0,.18), 0 2px 8px rgba(0,0,0,.06);
}
[data-theme="terminal"] {
  --bg-0:#000; --bg-1:#020806; --bg-2:#04110b; --bg-3:#062018; --bg-elev:#031712;
  --line:#0a3d2c; --line-soft:#072a1f;
  --text:#bafad1; --text-dim:#67b893; --text-mute:#3d7a5e;
  --primary:#3dfca0; --primary-2:#3dfca0; --accent:#3dfca0;
}
[data-theme="rose"] {
  --bg-0:#1a0b14; --bg-1:#21101b; --bg-2:#2c1623; --bg-3:#37192a; --bg-elev:#2a1422;
  --line:#4a2238; --line-soft:#3b1a2c;
  --text:#fde7f1; --text-dim:#cd9eb4; --text-mute:#946379;
  --primary:#ff7eb6; --primary-2:#ff5d6c; --accent:#ffb4a2;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
html { scroll-behavior: smooth; }
body {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg-0);
  background-image: var(--grad-bg);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
img, svg { display: block; max-width: 100%; }

/* ---------- Themed scrollbars (matches site palette) ---------- */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary), var(--accent));
  border: 2px solid var(--bg-1);
  border-radius: 999px;
  min-height: 36px;
}
*::-webkit-scrollbar-thumb:hover { filter: brightness(1.15); }
*::-webkit-scrollbar-corner { background: transparent; }

/* Selection */
::selection { background: color-mix(in oklab, var(--primary) 40%, transparent); color: white; }

/* ---------- Layout ---------- */
.topbar {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px;
  background: color-mix(in oklab, var(--bg-1) 85%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--grad-1);
  display: grid; place-items: center;
  color: white; font-size: 16px;
  box-shadow: 0 6px 20px -6px color-mix(in oklab, var(--primary) 60%, transparent);
}
.brand-mark.sm { width: 24px; height: 24px; font-size: 11px; border-radius: 7px; }
.brand-name { font-weight: 800; letter-spacing: -.01em; font-size: 18px; }
.brand-name span { background: var(--grad-1); -webkit-background-clip: text; background-clip: text; color: transparent; }
.brand-tag { color: var(--text-dim); font-size: 12px; margin-left: 4px; }

.topnav { display: flex; gap: 4px; }
.nav-link {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 12px; border-radius: 10px; color: var(--text-dim);
  font-size: 14px; font-weight: 500;
  transition: all .15s ease;
}
.nav-link:hover { color: var(--text); background: var(--bg-2); }
.nav-link i { font-size: 13px; }

.page { max-width: 1100px; margin: 0 auto; padding: 32px 22px 80px; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 48px 0 28px; text-align: center; }
.hero-glow {
  position: absolute; inset: -40px 10% auto; height: 280px;
  background: radial-gradient(closest-side, color-mix(in oklab, var(--primary) 28%, transparent), transparent 70%);
  filter: blur(40px); pointer-events: none; z-index: 0;
}
.hero-inner { position: relative; z-index: 1; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px; border-radius: 999px;
  background: var(--bg-2); border: 1px solid var(--line);
  color: var(--text-dim); font-size: 12.5px; letter-spacing: .02em;
}
.eyebrow i { color: var(--accent); }
.hero h1 {
  font-size: clamp(28px, 5vw, 48px);
  line-height: 1.1; letter-spacing: -.02em;
  margin: 18px 0 14px; font-weight: 800;
}
.grad { background: var(--grad-1); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lead { color: var(--text-dim); max-width: 680px; margin: 0 auto 28px; font-size: 16px; }

.modeswitch {
  display: inline-flex; gap: 4px; padding: 4px;
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 14px;
}
.modeswitch button {
  background: transparent; border: 0; color: var(--text-dim);
  padding: 10px 18px; border-radius: 10px;
  font-weight: 600; font-size: 14px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px;
  transition: all .15s;
}
.modeswitch button:hover { color: var(--text); }
.modeswitch button.active {
  background: var(--bg-elev); color: var(--text);
  box-shadow: 0 1px 0 var(--line), inset 0 0 0 1px color-mix(in oklab, var(--primary) 30%, transparent);
}

/* ---------- Panel ---------- */
.panel {
  background: linear-gradient(180deg, var(--bg-2), var(--bg-1));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  margin-top: 28px;
  box-shadow: var(--shadow);
}
.panel-head { display: flex; gap: 14px; align-items: center; margin-bottom: 18px; }
.panel-head h2 { margin: 0; font-size: 20px; letter-spacing: -.01em; }
.panel-head p  { margin: 4px 0 0; color: var(--text-dim); font-size: 13.5px; }

.head-icon {
  width: 44px; height: 44px; border-radius: 12px;
  display: grid; place-items: center; color: white; font-size: 17px;
  background: var(--grad-1); flex: none;
}
.head-icon.lg { width: 52px; height: 52px; font-size: 20px; }
.ico-share { background: linear-gradient(135deg, #5b8bff, #26d0ce); }
.ico-secret { background: linear-gradient(135deg, #ff6ec4, #7c5cff); }
.ico-time { background: linear-gradient(135deg, #ffb547, #ff6b6b); }
.ico-cap  { background: linear-gradient(135deg, #6bd968, #26d0ce); }

/* ---------- Form fields ---------- */
.row { display: flex; }
.row.gap { gap: 14px; flex-wrap: wrap; }
.field { display: flex; flex-direction: column; gap: 6px; min-width: 180px; }
.field.grow { flex: 1; min-width: 220px; }
.field span { font-size: 12.5px; color: var(--text-dim); font-weight: 500; }
.field span i { margin-right: 6px; color: var(--text-mute); }

.input, .select, textarea {
  background: var(--bg-1);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  font-size: 14px;
  font-family: inherit;
  transition: border-color .15s, box-shadow .15s, background .15s;
  width: 100%;
}
.input:focus, .select:focus, textarea:focus {
  outline: none; border-color: color-mix(in oklab, var(--primary) 60%, transparent);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--primary) 18%, transparent);
}
.select {
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' stroke='%239aa0bd' stroke-width='2' fill='none' stroke-linecap='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 34px;
}
.input.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

.check { display: flex; align-items: center; gap: 9px; padding: 6px 0; color: var(--text-dim); font-size: 13.5px; cursor: pointer; }
.check input { accent-color: var(--primary); width: 16px; height: 16px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px; border-radius: var(--radius-sm);
  border: 1px solid var(--line); background: var(--bg-2); color: var(--text);
  font-weight: 600; font-size: 14px; cursor: pointer;
  transition: all .15s ease;
}
.btn:hover { background: var(--bg-3); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-lg { padding: 12px 20px; font-size: 15px; }
.btn-sm { padding: 7px 12px; font-size: 12.5px; }
.btn-primary {
  background: var(--grad-1); border: 0; color: white;
  box-shadow: 0 8px 22px -10px color-mix(in oklab, var(--primary) 70%, transparent);
}
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; }
.btn-danger { background: var(--danger); border: 0; color: white; }
.btn-danger:hover { filter: brightness(1.08); }
.link {
  background: none; border: 0; color: var(--primary);
  cursor: pointer; padding: 0; font: inherit; text-decoration: underline;
  text-underline-offset: 3px;
}

.actions { display: flex; align-items: center; gap: 12px; margin-top: 18px; flex-wrap: wrap; }
.hint { color: var(--text-dim); font-size: 13px; display: inline-flex; align-items: center; gap: 6px; }

/* ---------- Dropzone ---------- */
.dropzone {
  margin: 6px 0 18px;
  border: 2px dashed var(--line);
  border-radius: var(--radius);
  padding: 38px 22px;
  text-align: center;
  background: var(--bg-1);
  transition: all .15s ease;
  cursor: pointer;
}
.dropzone:hover, .dropzone:focus, .dropzone.drag {
  border-color: color-mix(in oklab, var(--primary) 70%, transparent);
  background: color-mix(in oklab, var(--primary) 5%, var(--bg-1));
}
.dz-icon {
  width: 56px; height: 56px; margin: 0 auto 12px;
  border-radius: 50%; background: var(--grad-1);
  display: grid; place-items: center; color: white; font-size: 22px;
}
.dz-title { font-weight: 700; font-size: 16px; }
.dz-sub { color: var(--text-dim); font-size: 13.5px; margin-top: 4px; }

/* ---------- Pending file list ---------- */
.pending { list-style: none; padding: 0; margin: 14px 0 0; display: flex; flex-direction: column; gap: 8px; }
.pf {
  display: grid; grid-template-columns: 44px 1fr auto auto; gap: 12px;
  align-items: center; padding: 10px 12px;
  background: var(--bg-1); border: 1px solid var(--line); border-radius: var(--radius-sm);
}
.pf-thumb {
  width: 44px; height: 44px; border-radius: 10px; display: grid; place-items: center;
  font-weight: 800; font-size: 11px; color: white; letter-spacing: .04em;
}
.pf-name { font-weight: 600; font-size: 14px; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pf-sub { color: var(--text-dim); font-size: 12px; }
.pf-progress {
  width: 120px; height: 6px; background: var(--bg-3);
  border-radius: 999px; overflow: hidden; position: relative;
}
.pf-progress > i {
  display: block; height: 100%; width: 0%;
  background: var(--grad-1); transition: width .2s;
}
.pf-status { font-size: 12px; color: var(--text-dim); min-width: 56px; text-align: right; }
.pf-status.ok { color: var(--success); }
.pf-status.err { color: var(--danger); }
.pf .iconbtn { color: var(--text-mute); }

/* ---------- Features ---------- */
.features {
  margin-top: 36px;
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}
.card {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px;
  transition: transform .2s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-2px); border-color: color-mix(in oklab, var(--primary) 35%, var(--line)); }
.card .ico {
  width: 38px; height: 38px; border-radius: 10px;
  display: grid; place-items: center; color: white; font-size: 15px;
  background: var(--grad-1); margin-bottom: 10px;
}
.card h3 { margin: 4px 0 4px; font-size: 15px; }
.card p { margin: 0; color: var(--text-dim); font-size: 13.5px; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line-soft); margin-top: 40px; }
.footer-inner {
  max-width: 1100px; margin: 0 auto; padding: 18px 22px;
  display: flex; align-items: center; justify-content: space-between;
  color: var(--text-dim); font-size: 13px; flex-wrap: wrap; gap: 12px;
}
.foot-brand { display: flex; align-items: center; gap: 8px; }
.foot-links { display: flex; gap: 14px; }
.foot-links a:hover { color: var(--text); }

/* ---------- Toasts ---------- */
.toasts {
  position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; gap: 8px; z-index: 80;
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  background: var(--bg-elev); color: var(--text);
  border: 1px solid var(--line); border-radius: 999px;
  padding: 10px 16px; font-size: 13.5px; box-shadow: var(--shadow);
  display: flex; align-items: center; gap: 10px;
  animation: toastIn .25s ease;
}
.toast.err { border-color: color-mix(in oklab, var(--danger) 60%, var(--line)); }
.toast.ok  { border-color: color-mix(in oklab, var(--success) 60%, var(--line)); }
@keyframes toastIn { from { opacity: 0; transform: translate(-50%, 8px); } }

/* ---------- Cookie bar / Thumb ---------- */
.cookiebar {
  position: fixed; left: 18px; bottom: 18px; right: 18px; max-width: 540px;
  background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px 16px; display: flex; gap: 14px; align-items: center;
  box-shadow: var(--shadow); z-index: 70; font-size: 13.5px; color: var(--text-dim);
}
.cookiebar a { color: var(--primary); text-decoration: underline; }
.cookiebar strong { color: var(--text); }

.thumb {
  position: fixed; right: 18px; bottom: 18px; z-index: 60;
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--bg-elev); color: var(--text);
  border: 1px solid var(--line); border-radius: 999px;
  padding: 12px 18px 12px 14px; cursor: pointer;
  box-shadow: var(--shadow);
  transition: transform .15s, background .15s, color .15s;
}
.thumb i { font-size: 18px; color: var(--text-mute); }
.thumb[aria-pressed="true"] { background: var(--success); border-color: transparent; color: #062012; }
.thumb[aria-pressed="true"] i { color: #062012; }
.thumb:hover { transform: translateY(-1px); }
.thumb-label { font-weight: 600; font-size: 13px; }

/* ---------- Share page ---------- */
.share-page { padding: 24px 0; }
.share-head { display: flex; gap: 16px; align-items: center; margin-bottom: 26px; }
.share-head h1 { margin: 4px 0 10px; font-size: 24px; letter-spacing: -.01em; }
.copyrow { display: flex; gap: 8px; }
.copyrow .input { font-size: 13px; }

.files-grid {
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
}
.file-card {
  display: flex; flex-direction: column; gap: 10px;
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 14px;
  text-decoration: none; color: inherit;
  transition: transform .2s ease, border-color .2s ease;
  position: relative; overflow: hidden;
}
.file-card:hover { transform: translateY(-2px); border-color: color-mix(in oklab, var(--primary) 40%, var(--line)); }
.fc-thumb {
  height: 96px; border-radius: 10px;
  display: grid; place-items: center;
  position: relative; overflow: hidden;
  background: var(--ext-bg, var(--grad-1));
  color: white;
}
.fc-thumb i { font-size: 30px; opacity: .9; }
.fc-thumb .ext {
  position: absolute; bottom: 6px; right: 8px;
  background: rgba(0,0,0,.35); color: white;
  font-size: 10px; font-weight: 800; padding: 2px 6px;
  border-radius: 4px; letter-spacing: .06em; text-transform: uppercase;
}
.fc-name {
  font-size: 13.5px; font-weight: 600;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.fc-sub { font-size: 11.5px; color: var(--text-dim); }
.empty { padding: 40px; text-align: center; color: var(--text-dim); }

/* ---------- 404 ---------- */
.four04 { text-align: center; padding: 80px 0; }
.four04 .big {
  font-size: 100px; font-weight: 900; line-height: 1;
  background: var(--grad-1); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.four04 h1 { margin: 8px 0 18px; }

/* ---------- Legal pages ---------- */
.legal { max-width: 720px; margin: 0 auto; padding: 20px 0; }
.legal h1 { font-size: 32px; letter-spacing: -.02em; margin: 0 0 8px; }
.legal h2 { font-size: 18px; margin: 24px 0 6px; }
.legal .lead { color: var(--text-dim); font-size: 16px; }
.legal .bul { padding-left: 18px; color: var(--text-dim); }
.legal .bul li { margin: 6px 0; }
.legal code { background: var(--bg-2); padding: 1px 6px; border-radius: 6px; font-size: 12.5px; }
.legal-table { width: 100%; border-collapse: collapse; margin-top: 12px; }
.legal-table th, .legal-table td { text-align: left; padding: 10px; border-bottom: 1px solid var(--line); font-size: 13.5px; }

/* =========================================================
   CHAT
   ========================================================= */

.chat {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 16px;
  height: calc(100vh - 64px - 60px);
  min-height: 520px;
  margin: -8px auto 0;
}
@media (min-width: 1280px) {
  .chat { grid-template-columns: 380px 1fr; }
}
@media (min-width: 1600px) {
  .chat { grid-template-columns: 420px 1fr; }
}

.chat-side {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: flex; flex-direction: column;
  overflow: hidden;
}
.room-card, .me-card {
  display: flex; align-items: center; gap: 10px;
  padding: 14px; border-bottom: 1px solid var(--line-soft);
}
.room-title { font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.muted { color: var(--text-dim); }
.muted.small { font-size: 12px; }
.muted.tiny { font-size: 11.5px; }
.muted.tiny.pad { padding: 8px 14px; }
.iconbtn {
  background: transparent; border: 0; color: var(--text-dim);
  width: 34px; height: 34px; border-radius: 8px; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background .15s, color .15s;
}
.iconbtn:hover { background: var(--bg-3); color: var(--text); }

.avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--grad-1); color: white;
  display: grid; place-items: center;
  font-weight: 800; font-size: 11px; letter-spacing: .04em;
  flex: none;
}
.avatar.lg { width: 44px; height: 44px; font-size: 14px; }

.me-name { font-weight: 700; }

/* Side tabs */
.side-tabs {
  display: flex; gap: 2px; padding: 8px;
  border-bottom: 1px solid var(--line-soft);
  overflow-x: auto;
}
.side-tabs button {
  flex: 1; min-width: 0;
  background: transparent; border: 0; color: var(--text-dim);
  padding: 8px 10px; border-radius: 8px; cursor: pointer;
  font-size: 12.5px; font-weight: 600;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  transition: all .15s;
}
.side-tabs button i { font-size: 12px; }
.side-tabs button:hover { color: var(--text); background: var(--bg-3); }
.side-tabs button.active {
  color: var(--text);
  background: var(--bg-3);
  box-shadow: inset 0 -2px 0 var(--primary);
}
.pill {
  background: var(--bg-1); color: var(--text-dim);
  border-radius: 999px; padding: 1px 7px;
  font-size: 11px; min-width: 18px; text-align: center;
}

.side-panel { padding: 10px; overflow-y: auto; flex: 1; }
.side-panel hr.sep { border: 0; border-top: 1px solid var(--line-soft); margin: 12px 0; }
.side-panel .field { margin-bottom: 12px; }

.members { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 4px; }
.members li {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px; border-radius: 8px;
}
.members li:hover { background: var(--bg-3); }
.members .name { font-size: 13px; font-weight: 600; }
.members .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--text-mute); }
.members .dot.on { background: var(--success); box-shadow: 0 0 0 3px color-mix(in oklab, var(--success) 25%, transparent); }

.shared-files { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 6px; }
.sf {
  display: grid; grid-template-columns: 36px 1fr auto; gap: 10px;
  align-items: center; padding: 8px; border-radius: 8px;
  border: 1px solid var(--line-soft); background: var(--bg-1);
}
.sf:hover { border-color: var(--line); }
.sf .pf-thumb { width: 36px; height: 36px; font-size: 10px; border-radius: 8px; }
.sf .name { font-size: 12.5px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sf .sub { font-size: 11px; color: var(--text-dim); }

.storage-bar {
  height: 6px; background: var(--bg-3); border-radius: 999px;
  overflow: hidden; margin: 8px 14px;
}
.storage-fill { height: 100%; width: 0%; background: var(--grad-1); transition: width .3s; }

/* Chat main */
.chat-main {
  display: flex; flex-direction: column;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
}
.chat-head {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px; border-bottom: 1px solid var(--line-soft);
  background: color-mix(in oklab, var(--bg-2) 90%, transparent);
}
.ch-title { font-weight: 700; }
.ch-sub { color: var(--text-dim); font-size: 12px; }
.conn-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--text-mute); }
.conn-dot.on { background: var(--success); box-shadow: 0 0 0 3px color-mix(in oklab, var(--success) 25%, transparent); }
.conn-dot.off { background: var(--danger); }

.messages {
  flex: 1; overflow-y: auto; padding: 18px;
  display: flex; flex-direction: column; gap: 4px;
  background:
    radial-gradient(800px 400px at 20% -20%, color-mix(in oklab, var(--primary) 8%, transparent), transparent 60%),
    radial-gradient(600px 300px at 110% 110%, color-mix(in oklab, var(--accent) 8%, transparent), transparent 60%),
    var(--bg-1);
}

.msg-group { display: flex; gap: 10px; margin-top: 10px; align-items: flex-start; }
.msg-group.mine { flex-direction: row-reverse; }
.msg-group.mine .bubble { background: var(--grad-1); color: white; border-color: transparent; }
.msg-group.mine .meta { text-align: right; }
.msg-group.mine .bubble .ts { color: rgba(255,255,255,.8); }

.bubble-stack { display: flex; flex-direction: column; gap: 4px; max-width: 70%; }
.meta { font-size: 11.5px; color: var(--text-dim); padding: 0 4px; }
.meta b { color: var(--text); font-weight: 600; }
.bubble {
  background: var(--bg-2); border: 1px solid var(--line-soft);
  padding: 8px 12px; border-radius: 14px;
  font-size: 14px; line-height: 1.45;
  word-wrap: break-word; overflow-wrap: anywhere;
  position: relative;
}
.bubble .ts { font-size: 10.5px; color: var(--text-mute); margin-left: 8px; }
.bubble.system {
  align-self: center; max-width: max-content;
  background: transparent; border: 1px dashed var(--line);
  color: var(--text-dim); font-size: 12px; padding: 4px 12px;
  border-radius: 999px;
}
.system-row { display: flex; justify-content: center; margin: 8px 0; }

.bubble.file {
  display: flex; align-items: center; gap: 10px; padding: 10px 14px;
  text-decoration: none; color: inherit; min-width: 220px;
}
.bubble.file .pf-thumb { width: 40px; height: 40px; font-size: 10px; border-radius: 9px; }
.bubble.file .fname { font-weight: 600; font-size: 13.5px; max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bubble.file .fsub  { font-size: 11.5px; color: var(--text-dim); }
.msg-group.mine .bubble.file .fsub { color: rgba(255,255,255,.85); }

/* Compact mode */
.chat[data-compact="1"] .messages { gap: 2px; padding: 12px; }
.chat[data-compact="1"] .msg-group { margin-top: 4px; }
.chat[data-compact="1"] .bubble { padding: 5px 10px; font-size: 13px; }

/* Font sizes */
.chat[data-fs="sm"] .messages { font-size: 13px; }
.chat[data-fs="lg"] .messages { font-size: 16px; }
.chat[data-fs="lg"] .bubble  { font-size: 16px; }

.composer {
  display: grid; grid-template-columns: auto auto 1fr auto;
  gap: 8px; padding: 10px; border-top: 1px solid var(--line-soft);
  background: var(--bg-2);
  align-items: end;
}
.composer textarea {
  resize: none; max-height: 140px;
  background: var(--bg-1);
  border-radius: 999px; padding: 10px 16px;
}
.composer .btn { padding: 10px 14px; }

.drop-overlay {
  position: absolute; inset: 0; background: color-mix(in oklab, var(--primary) 25%, transparent);
  backdrop-filter: blur(4px);
  display: grid; place-items: center; color: white;
  font-size: 18px; font-weight: 700; text-align: center;
  border: 2px dashed white; z-index: 10;
}

/* Per-room theme */
.chat[data-theme="aurora"]   { --bg-2:#0a1422; --bg-1:#0a1422; --line:#1e3658; --line-soft:#172a44; --primary:#3ddcc4; --accent:#a78bfa; }
.chat[data-theme="paper"]    { --bg-2:#ffffff; --bg-1:#f7f5f0; --line:#e3ddcd; --line-soft:#ece6d6; --text:#1c1c1c; --text-dim:#5a5a5a; --primary:#ff6e3c; }
.chat[data-theme="terminal"] { --bg-2:#020806; --bg-1:#000;     --line:#0a3d2c; --line-soft:#072a1f; --text:#bafad1; --text-dim:#67b893; --primary:#3dfca0; --accent:#3dfca0; }
.chat[data-theme="rose"]     { --bg-2:#21101b; --bg-1:#1a0b14;  --line:#4a2238; --line-soft:#3b1a2c; --text:#fde7f1; --text-dim:#cd9eb4; --primary:#ff7eb6; }

/* ---------- Mobile ---------- */
.only-mobile { display: none; }
@media (max-width: 820px) {
  .topnav .nav-link span { display: none; }
  .brand-tag { display: none; }
  .chat { grid-template-columns: 1fr; height: calc(100vh - 60px - 50px); }
  .chat-side {
    position: fixed; inset: 60px 0 0 0; z-index: 50;
    border-radius: 0; transform: translateX(-100%); transition: transform .25s;
  }
  .chat-side.open { transform: translateX(0); }
  .only-mobile { display: inline-flex; }
  .page { padding: 20px 14px 60px; }
  .panel { padding: 18px; }
  .features { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .features { grid-template-columns: 1fr; }
  .hero { padding: 24px 0 14px; }
  .modeswitch button { padding: 9px 12px; font-size: 13px; }
  .bubble-stack { max-width: 85%; }
}

/* =========================================================
   New themes: cyberpunk, kali, ubuntu, matrix, synthwave
   ========================================================= */

[data-theme="cyberpunk"] {
  --bg-0:#04020a; --bg-1:#0a0418; --bg-2:#120829; --bg-3:#1c0c3d; --bg-elev:#170a30;
  --line:#ff2bd6; --line-soft:#3b1252;
  --text:#f7eaff; --text-dim:#c89bf2; --text-mute:#7e589f;
  --primary:#ff2bd6; --primary-2:#9b4dff; --accent:#00f6ff;
  --danger:#ff3860; --warning:#ffd400; --success:#54ffb6;
  --grad-1: linear-gradient(135deg,#ff2bd6 0%,#00f6ff 100%);
  --grad-2: linear-gradient(135deg,#ffd400 0%,#ff2bd6 100%);
  --grad-bg: radial-gradient(900px 500px at 80% -10%, rgba(255,43,214,.28), transparent 60%),
             radial-gradient(900px 500px at -10% 30%, rgba(0,246,255,.18), transparent 60%),
             repeating-linear-gradient(0deg, transparent 0 39px, rgba(255,43,214,.04) 39px 40px);
  --shadow: 0 0 24px rgba(255,43,214,.35), 0 0 48px rgba(0,246,255,.12);
}

[data-theme="kali"] {
  --bg-0:#000206; --bg-1:#02090e; --bg-2:#06141d; --bg-3:#0a1f2c; --bg-elev:#08182a;
  --line:#0a3a5c; --line-soft:#072a44;
  --text:#d3eaff; --text-dim:#7fb6dd; --text-mute:#4a7798;
  --primary:#367bf0; --primary-2:#1fb6ff; --accent:#5dd6ff;
  --danger:#ff5d6c; --warning:#ffb547; --success:#3dfca0;
  --grad-1: linear-gradient(135deg,#1fb6ff 0%,#367bf0 100%);
  --grad-2: linear-gradient(135deg,#5dd6ff 0%,#367bf0 100%);
  --grad-bg: radial-gradient(900px 600px at 70% -10%, rgba(31,182,255,.18), transparent 60%);
}
[data-theme="kali"] body { font-family: "JetBrains Mono", ui-monospace, "SFMono-Regular", Consolas, monospace; }

[data-theme="ubuntu"] {
  --bg-0:#1d0e15; --bg-1:#2c0c1c; --bg-2:#3a0f24; --bg-3:#4d122d; --bg-elev:#42112a;
  --line:#7a1d44; --line-soft:#5c1535;
  --text:#fff1e6; --text-dim:#e3b8a0; --text-mute:#a47a66;
  --primary:#e95420; --primary-2:#ff7a4e; --accent:#ff9f6e;
  --danger:#ff3860; --warning:#ffb547; --success:#6bd968;
  --grad-1: linear-gradient(135deg,#e95420 0%,#9b1a4d 100%);
  --grad-2: linear-gradient(135deg,#ff7a4e 0%,#e95420 100%);
}

[data-theme="matrix"] {
  --bg-0:#000; --bg-1:#020a05; --bg-2:#03150b; --bg-3:#062313; --bg-elev:#031c10;
  --line:#0e6a3e; --line-soft:#063a22;
  --text:#aaffc6; --text-dim:#52c98a; --text-mute:#2c7a52;
  --primary:#00ff66; --primary-2:#00cc55; --accent:#00ff99;
  --danger:#ff3860; --warning:#ffd400; --success:#00ff66;
  --grad-1: linear-gradient(135deg,#00ff66 0%,#00cc55 100%);
  --grad-bg: radial-gradient(900px 600px at 50% -10%, rgba(0,255,102,.10), transparent 60%);
}
[data-theme="matrix"] body { font-family: "JetBrains Mono", ui-monospace, "SFMono-Regular", Consolas, monospace; text-shadow: 0 0 6px rgba(0,255,102,.35); }

[data-theme="synthwave"] {
  --bg-0:#0a0426; --bg-1:#10073a; --bg-2:#180a52; --bg-3:#220f6b; --bg-elev:#1a0a52;
  --line:#7a3aff; --line-soft:#3b1d6e;
  --text:#fde6ff; --text-dim:#c89bef; --text-mute:#8a64bf;
  --primary:#ff3cac; --primary-2:#7a3aff; --accent:#00e0ff;
  --danger:#ff5d6c; --warning:#ffd400; --success:#3dfca0;
  --grad-1: linear-gradient(135deg,#ff3cac 0%,#784ba0 50%,#2b86c5 100%);
  --grad-2: linear-gradient(135deg,#ffd400 0%,#ff3cac 100%);
  --grad-bg: linear-gradient(180deg,#0a0426 0%,#3a0f6b 60%,#ff3cac 105%),
             repeating-linear-gradient(180deg, transparent 0 79px, rgba(255,60,172,.08) 79px 80px);
  --shadow: 0 0 24px rgba(255,60,172,.35);
}

/* =========================================================
   Header burger / mobile menu
   ========================================================= */
.nav-burger {
  display: none;
  background: transparent; border: 1px solid var(--line);
  color: var(--text); padding: 8px 12px; border-radius: 10px; cursor: pointer;
  font-size: 16px;
}
.mobile-menu {
  position: fixed; inset: 0 0 0 auto; width: min(86vw, 340px); z-index: 80;
  background: color-mix(in oklab, var(--bg-1) 96%, transparent);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-left: 1px solid var(--line-soft);
  padding: 14px 16px; box-shadow: -20px 0 60px rgba(0,0,0,.5);
  animation: mmIn .22s ease-out;
}
@keyframes mmIn { from { transform: translateX(20px); opacity: 0; } to { transform: none; opacity: 1; } }
.mm-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 10px; border-bottom: 1px solid var(--line-soft); }
.mm-list { display: flex; flex-direction: column; gap: 4px; padding-top: 12px; }
.mm-list a, .mm-list button {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px; border-radius: 10px; color: var(--text); background: transparent; border: 0;
  font-size: 15px; cursor: pointer; text-align: left;
}
.mm-list a:hover, .mm-list button:hover { background: var(--bg-2); }
body.mm-open { overflow: hidden; }

/* =========================================================
   Bottom nav (mobile)
   ========================================================= */
.bottomnav {
  display: none;
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
  background: color-mix(in oklab, var(--bg-1) 92%, transparent);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--line-soft);
  padding: 6px 4px calc(6px + env(safe-area-inset-bottom)); 
  justify-content: space-around;
}
.bn-tab {
  flex: 1 1 0; display: flex; flex-direction: column; align-items: center; gap: 2px;
  background: transparent; border: 0; color: var(--text-dim); font-size: 11px;
  padding: 6px 4px; border-radius: 8px; cursor: pointer; text-decoration: none;
}
.bn-tab i { font-size: 18px; color: var(--text); }
.bn-tab:hover { color: var(--text); background: color-mix(in oklab, var(--primary) 10%, transparent); }

/* =========================================================
   Cookie consent
   ========================================================= */
.cookiebar {
  position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 70;
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 14px 18px; border-radius: 14px;
  background: color-mix(in oklab, var(--bg-1) 96%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.cb-text { flex: 1 1 320px; font-size: 14px; color: var(--text); }
.cb-text a { color: var(--primary); text-decoration: underline; }
.cb-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* =========================================================
   Generic modal
   ========================================================= */
.modal {
  position: fixed; inset: 0; z-index: 90;
  background: color-mix(in oklab, #000 70%, transparent);
  display: grid; place-items: center; padding: 20px;
  animation: fadeIn .15s ease-out;
}
.modal[hidden] { display: none !important; }
[hidden] { display: none !important; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal-card {
  width: min(640px, 100%); max-height: 86vh; overflow: auto;
  background: var(--bg-elev); border: 1px solid var(--line);
  border-radius: 16px; box-shadow: var(--shadow);
  display: flex; flex-direction: column;
  animation: popIn .18s ease-out;
}
@keyframes popIn { from { transform: scale(.96); opacity: 0; } to { transform: none; opacity: 1; } }
.modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-bottom: 1px solid var(--line-soft);
}
.modal-head h3 { margin: 0; font-size: 18px; display: flex; align-items: center; gap: 8px; }
.modal-body { padding: 16px 18px; }
.modal-foot { padding: 12px 18px; border-top: 1px solid var(--line-soft); display: flex; gap: 8px; justify-content: flex-end; flex-wrap: wrap; }
body.modal-open { overflow: hidden; }
.muted { color: var(--text-dim); font-size: 14px; }

.cookie-cats { list-style: none; margin: 8px 0 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.cookie-cats li { padding: 12px 14px; border: 1px solid var(--line-soft); border-radius: 12px; background: var(--bg-2); }
.cat-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 4px; }
.cat-head strong { font-size: 14px; }
.cookie-cats p { margin: 0; font-size: 13px; color: var(--text-dim); }
.badge { font-size: 11px; padding: 2px 8px; border-radius: 999px; border: 1px solid var(--line); }
.badge-ok { color: var(--success); border-color: color-mix(in oklab, var(--success) 50%, var(--line)); }
.badge-no { color: var(--text-mute); }

/* Toggle switch */
.switch { position: relative; display: inline-block; width: 40px; height: 22px; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch span {
  position: absolute; cursor: pointer; inset: 0;
  background: var(--bg-3); border: 1px solid var(--line); border-radius: 999px;
  transition: .15s;
}
.switch span::before {
  content: ''; position: absolute; height: 16px; width: 16px; left: 2px; top: 2px;
  background: var(--text-dim); border-radius: 50%; transition: .15s;
}
.switch input:checked + span { background: var(--grad-1); border-color: transparent; }
.switch input:checked + span::before { transform: translateX(18px); background: white; }

/* =========================================================
   Theme picker modal
   ========================================================= */
.theme-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px;
}
.theme-swatch {
  display: flex; flex-direction: column; align-items: stretch; gap: 6px;
  background: var(--bg-2); border: 1px solid var(--line-soft); border-radius: 12px;
  padding: 10px; cursor: pointer; color: var(--text); text-align: left;
  transition: transform .12s, border-color .12s;
}
.theme-swatch:hover { transform: translateY(-2px); border-color: var(--primary); }
.theme-swatch.active { border-color: var(--primary); box-shadow: 0 0 0 2px color-mix(in oklab, var(--primary) 35%, transparent); }
.theme-swatch b { font-size: 13px; }
.theme-swatch em { font-size: 11px; color: var(--text-dim); font-style: normal; }
.sw {
  height: 56px; border-radius: 8px; border: 1px solid var(--line-soft);
  background: var(--grad-1);
}
.sw-midnight  { background: linear-gradient(135deg,#0b0c14 0%,#7c5cff 60%,#26d0ce 100%); }
.sw-aurora    { background: linear-gradient(135deg,#0a1422 0%,#3ddcc4 50%,#a78bfa 100%); }
.sw-paper     { background: linear-gradient(135deg,#fff 0%,#ff6e3c 60%,#1d4ed8 100%); }
.sw-terminal  { background: linear-gradient(135deg,#000 0%,#062018 60%,#3dfca0 100%); }
.sw-rose      { background: linear-gradient(135deg,#21101b 0%,#ff7eb6 60%,#ffb4a2 100%); }
.sw-cyberpunk { background: linear-gradient(135deg,#0a0418 0%,#ff2bd6 50%,#00f6ff 100%); }
.sw-kali      { background: linear-gradient(135deg,#02090e 0%,#367bf0 60%,#5dd6ff 100%); }
.sw-ubuntu    { background: linear-gradient(135deg,#2c0c1c 0%,#e95420 70%,#ff9f6e 100%); }
.sw-matrix    { background: linear-gradient(135deg,#000 0%,#03150b 50%,#00ff66 100%); }
.sw-synthwave { background: linear-gradient(135deg,#0a0426 0%,#7a3aff 50%,#ff3cac 80%,#ffd400 100%); }

/* =========================================================
   SEO article
   ========================================================= */
.seo-article {
  max-width: 880px; margin: 56px auto 32px; padding: 0 22px;
  color: var(--text); line-height: 1.7;
}
.seo-article h2 {
  font-size: 28px; margin: 36px 0 12px; letter-spacing: -.01em;
  background: var(--grad-1); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.seo-article h3 { font-size: 18px; margin: 22px 0 6px; color: var(--text); }
.seo-article p, .seo-article li { color: var(--text-dim); }
.seo-article strong { color: var(--text); }
.seo-article ul { padding-left: 22px; }
.seo-article .lede { font-size: 17px; color: var(--text); }
.seo-article .grid2 {
  display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 16px 0;
}
.seo-article .grid2 .card {
  background: var(--bg-2); border: 1px solid var(--line-soft); border-radius: 14px; padding: 16px;
}
.seo-article .grid2 .card h3 { margin-top: 0; display: flex; align-items: center; gap: 8px; }
.seo-article .faq details {
  background: var(--bg-2); border: 1px solid var(--line-soft); border-radius: 12px;
  padding: 14px 16px; margin-bottom: 10px;
}
.seo-article .faq summary { cursor: pointer; font-weight: 700; color: var(--text); }
.seo-article .faq summary::-webkit-details-marker { display: none; }
.seo-article .faq details[open] { border-color: var(--primary); }

/* =========================================================
   Mobile responsive tweaks
   ========================================================= */
@media (max-width: 820px) {
  .topnav { display: none; }
  .nav-burger { display: inline-flex; align-items: center; justify-content: center; }
  .bottomnav { display: flex; }
  body { padding-bottom: 64px; }
  .thumb { bottom: calc(72px + env(safe-area-inset-bottom)); }
  .cookiebar { bottom: calc(72px + env(safe-area-inset-bottom)); }
  .topbar { padding: 10px 14px; }
  .brand-tag { display: none; }
  .seo-article .grid2 { grid-template-columns: 1fr; }
  .features { grid-template-columns: 1fr 1fr; }
  .panel-head { flex-wrap: wrap; }
  .row.gap { flex-direction: column; align-items: stretch; }
  .actions { flex-wrap: wrap; }
}
@media (min-width: 821px) {
  .mobile-menu, .bottomnav { display: none !important; }
}

/* When third-party cookies are off, hide the Font Awesome CDN icons gracefully */
html.no-third .fa-solid::before, html.no-third .fa-regular::before, html.no-third .fa-brands::before {
  /* fallback: tiny dot — keeps layout but doesn't depend on the CDN font */
  content: '•';
}

/* =========================================================
   More themes (popular dev palettes)
   ========================================================= */
[data-theme="dracula"] {
  --bg-0:#1c1d27; --bg-1:#21222c; --bg-2:#282a36; --bg-3:#2f3142; --bg-elev:#2b2d3a;
  --line:#44475a; --line-soft:#373945;
  --text:#f8f8f2; --text-dim:#bcc0d3; --text-mute:#7a7e8e;
  --primary:#bd93f9; --primary-2:#ff79c6; --accent:#8be9fd;
  --danger:#ff5555; --warning:#f1fa8c; --success:#50fa7b;
  --grad-1:linear-gradient(135deg,#bd93f9 0%,#ff79c6 100%);
  --grad-2:linear-gradient(135deg,#8be9fd 0%,#bd93f9 100%);
}
[data-theme="nord"] {
  --bg-0:#1f242e; --bg-1:#242933; --bg-2:#2e3440; --bg-3:#3b4252; --bg-elev:#343a48;
  --line:#434c5e; --line-soft:#3a4254;
  --text:#eceff4; --text-dim:#a9b3c6; --text-mute:#6f788c;
  --primary:#88c0d0; --primary-2:#5e81ac; --accent:#a3be8c;
  --danger:#bf616a; --warning:#ebcb8b; --success:#a3be8c;
  --grad-1:linear-gradient(135deg,#88c0d0 0%,#5e81ac 100%);
  --grad-2:linear-gradient(135deg,#b48ead 0%,#88c0d0 100%);
}
[data-theme="tokyo"] {
  --bg-0:#16161e; --bg-1:#1a1b26; --bg-2:#1f2335; --bg-3:#24283b; --bg-elev:#222540;
  --line:#3b4261; --line-soft:#2a2e45;
  --text:#c0caf5; --text-dim:#7d8ab7; --text-mute:#565f89;
  --primary:#7aa2f7; --primary-2:#bb9af7; --accent:#7dcfff;
  --danger:#f7768e; --warning:#e0af68; --success:#9ece6a;
  --grad-1:linear-gradient(135deg,#7aa2f7 0%,#bb9af7 100%);
  --grad-2:linear-gradient(135deg,#7dcfff 0%,#7aa2f7 100%);
  --grad-bg: radial-gradient(900px 500px at 80% -10%, rgba(122,162,247,.15), transparent 60%),
             radial-gradient(900px 500px at -10% 30%, rgba(187,154,247,.10), transparent 60%);
}
[data-theme="monokai"] {
  --bg-0:#1e1f1c; --bg-1:#272822; --bg-2:#2d2e27; --bg-3:#3e3d32; --bg-elev:#34352e;
  --line:#49483e; --line-soft:#3a3a30;
  --text:#f8f8f2; --text-dim:#cfcfc2; --text-mute:#75715e;
  --primary:#f92672; --primary-2:#fd971f; --accent:#a6e22e;
  --danger:#f92672; --warning:#fd971f; --success:#a6e22e;
  --grad-1:linear-gradient(135deg,#f92672 0%,#fd971f 100%);
  --grad-2:linear-gradient(135deg,#66d9ef 0%,#a6e22e 100%);
}
[data-theme="catppuccin"] {
  --bg-0:#181825; --bg-1:#1e1e2e; --bg-2:#262638; --bg-3:#313244; --bg-elev:#2a2b3c;
  --line:#45475a; --line-soft:#363849;
  --text:#cdd6f4; --text-dim:#a6adc8; --text-mute:#7f849c;
  --primary:#cba6f7; --primary-2:#f38ba8; --accent:#94e2d5;
  --danger:#f38ba8; --warning:#f9e2af; --success:#a6e3a1;
  --grad-1:linear-gradient(135deg,#cba6f7 0%,#f38ba8 100%);
  --grad-2:linear-gradient(135deg,#89dceb 0%,#cba6f7 100%);
}
[data-theme="gruvbox"] {
  --bg-0:#1d2021; --bg-1:#282828; --bg-2:#32302f; --bg-3:#3c3836; --bg-elev:#3a3735;
  --line:#504945; --line-soft:#3d3b39;
  --text:#ebdbb2; --text-dim:#bdae93; --text-mute:#928374;
  --primary:#fe8019; --primary-2:#fabd2f; --accent:#b8bb26;
  --danger:#fb4934; --warning:#fabd2f; --success:#b8bb26;
  --grad-1:linear-gradient(135deg,#fe8019 0%,#fabd2f 100%);
  --grad-2:linear-gradient(135deg,#83a598 0%,#b8bb26 100%);
}
[data-theme="solarized"] {
  --bg-0:#001a20; --bg-1:#002b36; --bg-2:#073642; --bg-3:#0a4351; --bg-elev:#083d4a;
  --line:#586e75; --line-soft:#2a4751;
  --text:#fdf6e3; --text-dim:#93a1a1; --text-mute:#657b83;
  --primary:#268bd2; --primary-2:#2aa198; --accent:#b58900;
  --danger:#dc322f; --warning:#cb4b16; --success:#859900;
  --grad-1:linear-gradient(135deg,#268bd2 0%,#2aa198 100%);
  --grad-2:linear-gradient(135deg,#b58900 0%,#cb4b16 100%);
}
[data-theme="bloodhack"] {
  --bg-0:#0a0000; --bg-1:#140000; --bg-2:#1f0303; --bg-3:#2c0606; --bg-elev:#240505;
  --line:#5a0a0a; --line-soft:#3d0707;
  --text:#ffd6d6; --text-dim:#cf7d7d; --text-mute:#7d4747;
  --primary:#ff2222; --primary-2:#ff5e5e; --accent:#ff9900;
  --danger:#ff2222; --warning:#ff9900; --success:#3dfca0;
  --grad-1:linear-gradient(135deg,#ff2222 0%,#ff9900 100%);
  --grad-2:linear-gradient(135deg,#ff5e5e 0%,#ff2222 100%);
  --grad-bg: radial-gradient(900px 500px at 80% -10%, rgba(255,34,34,.20), transparent 60%);
}
[data-theme="bloodhack"] body { font-family: "JetBrains Mono", ui-monospace, "SFMono-Regular", Consolas, monospace; }

/* Theme picker swatches for new themes */
.sw-dracula    { background: linear-gradient(135deg,#282a36 0%,#bd93f9 60%,#ff79c6 100%); }
.sw-nord       { background: linear-gradient(135deg,#2e3440 0%,#88c0d0 60%,#a3be8c 100%); }
.sw-tokyo      { background: linear-gradient(135deg,#1a1b26 0%,#7aa2f7 50%,#bb9af7 100%); }
.sw-monokai    { background: linear-gradient(135deg,#272822 0%,#f92672 50%,#a6e22e 100%); }
.sw-catppuccin { background: linear-gradient(135deg,#1e1e2e 0%,#cba6f7 50%,#94e2d5 100%); }
.sw-gruvbox    { background: linear-gradient(135deg,#282828 0%,#fe8019 60%,#b8bb26 100%); }
.sw-solarized  { background: linear-gradient(135deg,#002b36 0%,#268bd2 50%,#b58900 100%); }
.sw-bloodhack  { background: linear-gradient(135deg,#140000 0%,#ff2222 60%,#ff9900 100%); }

/* =========================================================
   Per-room chat theme overrides (uses CSS vars from above)
   The base .chat container also inherits if data-theme matches root,
   so these only override differences for the inner chat surface.
   ========================================================= */
.chat[data-theme="cyberpunk"] { --bg-2:#0a0418; --bg-1:#04020a; --line:#ff2bd6; --line-soft:#3b1252; --text:#f7eaff; --text-dim:#c89bf2; --primary:#ff2bd6; --accent:#00f6ff; }
.chat[data-theme="kali"]      { --bg-2:#02090e; --bg-1:#000206; --line:#0a3a5c; --line-soft:#072a44; --text:#d3eaff; --text-dim:#7fb6dd; --primary:#367bf0; --accent:#5dd6ff; }
.chat[data-theme="ubuntu"]    { --bg-2:#2c0c1c; --bg-1:#1d0e15; --line:#7a1d44; --line-soft:#5c1535; --text:#fff1e6; --text-dim:#e3b8a0; --primary:#e95420; --accent:#ff9f6e; }
.chat[data-theme="matrix"]    { --bg-2:#020a05; --bg-1:#000;    --line:#0e6a3e; --line-soft:#063a22; --text:#aaffc6; --text-dim:#52c98a; --primary:#00ff66; --accent:#00ff99; }
.chat[data-theme="synthwave"] { --bg-2:#10073a; --bg-1:#0a0426; --line:#7a3aff; --line-soft:#3b1d6e; --text:#fde6ff; --text-dim:#c89bef; --primary:#ff3cac; --accent:#00e0ff; }
.chat[data-theme="dracula"]   { --bg-2:#282a36; --bg-1:#21222c; --line:#44475a; --line-soft:#373945; --text:#f8f8f2; --text-dim:#bcc0d3; --primary:#bd93f9; --accent:#8be9fd; }
.chat[data-theme="nord"]      { --bg-2:#2e3440; --bg-1:#242933; --line:#434c5e; --line-soft:#3a4254; --text:#eceff4; --text-dim:#a9b3c6; --primary:#88c0d0; --accent:#a3be8c; }
.chat[data-theme="tokyo"]     { --bg-2:#1f2335; --bg-1:#1a1b26; --line:#3b4261; --line-soft:#2a2e45; --text:#c0caf5; --text-dim:#7d8ab7; --primary:#7aa2f7; --accent:#7dcfff; }
.chat[data-theme="monokai"]   { --bg-2:#2d2e27; --bg-1:#272822; --line:#49483e; --line-soft:#3a3a30; --text:#f8f8f2; --text-dim:#cfcfc2; --primary:#f92672; --accent:#a6e22e; }
.chat[data-theme="catppuccin"]{ --bg-2:#262638; --bg-1:#1e1e2e; --line:#45475a; --line-soft:#363849; --text:#cdd6f4; --text-dim:#a6adc8; --primary:#cba6f7; --accent:#94e2d5; }
.chat[data-theme="gruvbox"]   { --bg-2:#32302f; --bg-1:#282828; --line:#504945; --line-soft:#3d3b39; --text:#ebdbb2; --text-dim:#bdae93; --primary:#fe8019; --accent:#b8bb26; }
.chat[data-theme="solarized"] { --bg-2:#073642; --bg-1:#002b36; --line:#586e75; --line-soft:#2a4751; --text:#fdf6e3; --text-dim:#93a1a1; --primary:#268bd2; --accent:#2aa198; }
.chat[data-theme="bloodhack"] { --bg-2:#1f0303; --bg-1:#140000; --line:#5a0a0a; --line-soft:#3d0707; --text:#ffd6d6; --text-dim:#cf7d7d; --primary:#ff2222; --accent:#ff9900; }

/* =========================================================
   Chat — elegant glass / advanced UI polish
   ========================================================= */
.chat {
  --grad-1: linear-gradient(135deg, var(--primary), var(--accent));
}

.chat-side, .chat-main {
  background:
    linear-gradient(160deg, color-mix(in oklab, var(--bg-2) 96%, transparent), color-mix(in oklab, var(--bg-1) 94%, transparent));
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid color-mix(in oklab, var(--line) 70%, transparent);
  box-shadow:
    0 24px 60px -30px rgba(0,0,0,.6),
    inset 0 1px 0 color-mix(in oklab, var(--text) 7%, transparent);
}

.room-card {
  position: relative; padding-top: 16px; padding-bottom: 16px;
}
.room-card::before {
  content: ''; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: var(--grad-1);
  opacity: .9;
}

.chat-head {
  background:
    linear-gradient(180deg, color-mix(in oklab, var(--bg-2) 92%, transparent), color-mix(in oklab, var(--bg-2) 78%, transparent));
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid color-mix(in oklab, var(--line) 60%, transparent);
  position: relative;
}
.chat-head::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px;
  background: linear-gradient(90deg, transparent, color-mix(in oklab, var(--primary) 50%, transparent), transparent);
}
.ch-title {
  font-size: 15px; letter-spacing: -.005em;
  background: var(--grad-1); -webkit-background-clip: text; background-clip: text; color: transparent;
}

.avatar {
  background: var(--grad-1);
  box-shadow: 0 6px 18px -8px color-mix(in oklab, var(--primary) 70%, transparent),
              inset 0 1px 0 rgba(255,255,255,.18);
  border: 1px solid color-mix(in oklab, var(--text) 8%, transparent);
}

/* Side tabs — pill style */
.side-tabs {
  background: color-mix(in oklab, var(--bg-1) 60%, transparent);
  border-radius: 12px; margin: 8px; padding: 4px;
  border-bottom: 0;
}
.side-tabs button {
  border-radius: 9px; padding: 7px 8px; font-size: 12px;
}
.side-tabs button.active {
  background: var(--grad-1); color: white; box-shadow: 0 6px 16px -8px color-mix(in oklab, var(--primary) 60%, transparent);
}
.side-tabs button.active i { color: white; }
.side-tabs button.active .pill { background: rgba(255,255,255,.25); color: white; }

/* Members */
.members li {
  border: 1px solid transparent; transition: border-color .15s, background .15s;
}
.members li:hover { background: color-mix(in oklab, var(--primary) 8%, var(--bg-3)); border-color: color-mix(in oklab, var(--primary) 25%, transparent); }
.members .avatar { width: 28px; height: 28px; font-size: 10px; }

/* Shared files cards */
.sf {
  background: color-mix(in oklab, var(--bg-1) 80%, transparent);
  transition: transform .12s, border-color .15s, box-shadow .15s;
}
.sf:hover {
  transform: translateY(-1px);
  border-color: color-mix(in oklab, var(--primary) 50%, var(--line));
  box-shadow: 0 8px 24px -16px color-mix(in oklab, var(--primary) 60%, transparent);
}

/* Storage bar — gradient with shimmer */
.storage-bar { background: color-mix(in oklab, var(--bg-3) 80%, transparent); height: 7px; }
.storage-fill {
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
  background-size: 200% 100%;
  animation: shimmer 3.5s linear infinite;
}
@keyframes shimmer { 0% { background-position: 0 0; } 100% { background-position: -200% 0; } }

/* Messages background — softer pattern */
.messages {
  background:
    radial-gradient(900px 500px at 20% -10%, color-mix(in oklab, var(--primary) 10%, transparent), transparent 60%),
    radial-gradient(700px 400px at 110% 110%, color-mix(in oklab, var(--accent) 10%, transparent), transparent 60%),
    linear-gradient(180deg, var(--bg-1), color-mix(in oklab, var(--bg-1) 90%, var(--bg-0)));
  scroll-behavior: smooth;
}

/* Message bubbles */
.bubble {
  background: color-mix(in oklab, var(--bg-2) 88%, transparent);
  border: 1px solid color-mix(in oklab, var(--line) 60%, transparent);
  border-radius: 16px;
  box-shadow: 0 6px 18px -14px rgba(0,0,0,.45);
  animation: bubbleIn .18s ease-out;
  transition: transform .12s;
}
.bubble:hover { transform: translateY(-1px); }
@keyframes bubbleIn { from { opacity: 0; transform: translateY(6px) scale(.98); } to { opacity: 1; transform: none; } }

.msg-group.mine .bubble {
  background: var(--grad-1);
  color: #fff;
  border-color: transparent;
  box-shadow:
    0 10px 26px -16px color-mix(in oklab, var(--primary) 80%, transparent),
    inset 0 1px 0 rgba(255,255,255,.18);
}

/* "Tail" on first bubble in a stack for visual rhythm */
.bubble-stack > .bubble:first-child { border-top-left-radius: 6px; }
.msg-group.mine .bubble-stack > .bubble:first-child {
  border-top-left-radius: 16px; border-top-right-radius: 6px;
}

/* System bubble — refined */
.bubble.system {
  border-style: solid; border-color: color-mix(in oklab, var(--line) 70%, transparent);
  background: color-mix(in oklab, var(--bg-2) 60%, transparent);
  letter-spacing: .02em;
}

/* File bubbles */
.bubble.file {
  border-radius: 14px;
  background: color-mix(in oklab, var(--bg-2) 90%, transparent);
}
.bubble.file:hover { border-color: var(--primary); }

/* Composer */
.composer {
  background:
    linear-gradient(180deg, color-mix(in oklab, var(--bg-2) 60%, transparent), color-mix(in oklab, var(--bg-2) 95%, transparent));
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-top: 1px solid color-mix(in oklab, var(--line) 60%, transparent);
}
.composer textarea {
  background: color-mix(in oklab, var(--bg-1) 80%, transparent);
  border: 1px solid color-mix(in oklab, var(--line) 50%, transparent);
  color: var(--text);
  transition: border-color .15s, box-shadow .15s;
}
.composer textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--primary) 22%, transparent);
}
.composer .btn[type="submit"], .composer button[type="submit"] {
  background: var(--grad-1); color: #fff; border: 0;
  border-radius: 999px; padding: 10px 18px;
  box-shadow: 0 8px 22px -10px color-mix(in oklab, var(--primary) 60%, transparent);
  transition: transform .12s, box-shadow .12s;
}
.composer .btn[type="submit"]:hover { transform: translateY(-1px); }

/* Drop overlay */
.drop-overlay {
  background:
    radial-gradient(600px 400px at 50% 50%, color-mix(in oklab, var(--primary) 35%, transparent), transparent 70%),
    color-mix(in oklab, var(--bg-1) 70%, transparent);
  border: 2px dashed color-mix(in oklab, var(--text) 60%, transparent);
  animation: fadeIn .15s ease-out;
}

/* Conn dot pulses while connected */
.conn-dot.on {
  animation: pulseDot 1.6s ease-in-out infinite;
}
@keyframes pulseDot {
  0%,100% { box-shadow: 0 0 0 3px color-mix(in oklab, var(--success) 25%, transparent); }
  50%     { box-shadow: 0 0 0 8px color-mix(in oklab, var(--success) 0%, transparent); }
}

/* Subtle typing-style cursor on focused composer */
.composer textarea::placeholder { color: var(--text-mute); }

/* Side panel scrollbar matches per-room theme automatically (vars) */

/* Responsive: bigger touch targets */
@media (max-width: 820px) {
  .chat-head { padding: 10px 12px; }
  .composer { padding: 8px; }
  .composer textarea { font-size: 16px; } /* prevents iOS zoom */
  .bubble { border-radius: 14px; }
}

/* =========================================================
   Floating theme picker button (always visible)
   ========================================================= */
.theme-fab {
  position: fixed;
  right: 16px;
  bottom: calc(16px + env(safe-area-inset-bottom));
  z-index: 65;
  width: 52px; height: 52px; border-radius: 50%;
  background:
    conic-gradient(from 0deg,
      #ff3cac, #ffd400, #3dfca0, #00f6ff, #7c5cff, #ff3cac);
  border: 2px solid color-mix(in oklab, var(--bg-1) 70%, transparent);
  color: #fff; cursor: pointer;
  display: grid; place-items: center;
  font-size: 20px;
  box-shadow:
    0 14px 32px -10px rgba(0,0,0,.5),
    0 0 0 4px color-mix(in oklab, var(--bg-1) 60%, transparent);
  transition: transform .15s, box-shadow .15s;
  animation: themeFabSpin 16s linear infinite;
}
.theme-fab i { animation: themeFabSpin 16s linear infinite reverse; text-shadow: 0 1px 2px rgba(0,0,0,.45); }
.theme-fab:hover { transform: scale(1.06); }
@keyframes themeFabSpin { to { transform: rotate(360deg); } }

/* The protected thumb stacks above the FAB so they don't overlap */
.thumb { bottom: calc(80px + env(safe-area-inset-bottom)); }

@media (max-width: 820px) {
  .theme-fab { bottom: calc(76px + env(safe-area-inset-bottom)); right: 12px; }
  .thumb     { bottom: calc(140px + env(safe-area-inset-bottom)); }
}

/* Make modal close button always large/clickable, even without Font Awesome */
.modal-head .iconbtn {
  width: 40px; height: 40px; font-size: 18px;
  background: var(--bg-2); border: 1px solid var(--line-soft);
}
.modal-head .iconbtn:hover { background: var(--danger); color: #fff; border-color: transparent; }
.modal-head .iconbtn::before {
  content: '×'; font-size: 22px; line-height: 1; color: inherit;
}
.modal-head .iconbtn i { display: none; } /* fallback ensures the × always shows */

/* =========================================================
   v1.3.0 — UI fixes & enhancements
   ========================================================= */

/* Avatar icons (replacing initials) */
.avatar i { font-size: 14px; line-height: 1; }
.avatar.lg i { font-size: 20px; }

/* Prominent "Invite" button in chat header */
.share-room-btn {
  display: inline-flex; align-items: center; gap: 6px;
  flex: none;
}
@media (max-width: 600px) {
  .share-room-btn .lbl { display: none; }
  .share-room-btn { padding: 8px 11px; }
}

/* Encryption-key-missing banner */
.key-missing-banner {
  display: flex; gap: 12px; align-items: flex-start;
  margin: 12px 14px 0;
  padding: 12px 14px;
  background: color-mix(in oklab, var(--danger) 14%, var(--bg-2));
  border: 1px solid color-mix(in oklab, var(--danger) 50%, var(--line));
  border-radius: 12px;
  color: var(--text);
  font-size: 13.5px; line-height: 1.5;
}
.key-missing-banner > i { color: var(--danger); font-size: 20px; margin-top: 2px; }
.key-missing-banner code { background: var(--bg-1); padding: 1px 6px; border-radius: 5px; font-size: 12px; }

/* Mobile "Protected" pill: shrink to icon-only and avoid covering content */
@media (max-width: 820px) {
  .thumb {
    padding: 0; width: 40px; height: 40px;
    border-radius: 50%; justify-content: center;
    right: 12px; bottom: calc(80px + env(safe-area-inset-bottom));
    z-index: 45; /* below modals (90) and bottom nav (50) */
  }
  .thumb .thumb-label { display: none; }
  .thumb i { font-size: 16px; }
  /* Move theme FAB above the thumb so they don't overlap */
  .theme-fab {
    width: 44px; height: 44px;
    bottom: calc(132px + env(safe-area-inset-bottom)); right: 12px;
  }
  /* Keep cookie bar above bottom nav */
  .cookiebar { bottom: calc(80px + env(safe-area-inset-bottom)); }
}

/* Sidebar polish + responsive */
.chat-side .room-card .grow { min-width: 0; }
.chat-side .room-title { font-size: 15px; }
.side-tabs button { font-size: 12px; }
@media (max-width: 820px) {
  .chat-side {
    width: min(86vw, 360px);
    inset: 60px auto 0 0;
    box-shadow: 6px 0 30px rgba(0,0,0,.45);
  }
}

/* =========================================================
   Distro-true themes: Ubuntu, Kali, Terminal, Matrix
   ========================================================= */

/* Ubuntu — official aubergine + orange */
[data-theme="ubuntu"] {
  --bg-0:#2c001e; --bg-1:#300a24; --bg-2:#3b1230; --bg-3:#4a1a3d; --bg-elev:#411437;
  --line:#77216f; --line-soft:#5a1755;
  --text:#ffffff; --text-dim:#e8d3e0; --text-mute:#a880a0;
  --primary:#e95420; --primary-2:#dd4814; --accent:#aea79f;
  --danger:#df382c; --warning:#efb73e; --success:#38b44a;
  --grad-1: linear-gradient(135deg,#dd4814 0%,#77216f 100%);
  --grad-2: linear-gradient(135deg,#e95420 0%,#aea79f 100%);
  --grad-bg: radial-gradient(900px 500px at 80% -10%, rgba(233,84,32,.18), transparent 60%),
             radial-gradient(900px 500px at -10% 30%, rgba(119,33,111,.20), transparent 60%);
}
[data-theme="ubuntu"] body { font-family: "Ubuntu", "Ubuntu Sans", system-ui, sans-serif; }
[data-theme="ubuntu"] .btn-primary { background: #e95420; border-color: #e95420; color: #fff; }
[data-theme="ubuntu"] .btn-primary:hover { background: #dd4814; }

/* Kali — official dark blue + neon highlights */
[data-theme="kali"] {
  --bg-0:#0b0f17; --bg-1:#0e1521; --bg-2:#13202c; --bg-3:#19293a; --bg-elev:#162435;
  --line:#1d3554; --line-soft:#142640;
  --text:#e7f1ff; --text-dim:#7fa8d4; --text-mute:#456b96;
  --primary:#00afef; --primary-2:#367bf0; --accent:#5dd6ff;
  --danger:#ff5d6c; --warning:#ffb547; --success:#3dfca0;
  --grad-1: linear-gradient(135deg,#00afef 0%,#367bf0 100%);
  --grad-2: linear-gradient(135deg,#5dd6ff 0%,#00afef 100%);
  --grad-bg: radial-gradient(900px 600px at 70% -10%, rgba(0,175,239,.20), transparent 60%),
             repeating-linear-gradient(0deg, transparent 0 31px, rgba(0,175,239,.04) 31px 32px);
}
[data-theme="kali"] body {
  font-family: "JetBrains Mono", "Fira Code", ui-monospace, "SFMono-Regular", Consolas, monospace;
}
[data-theme="kali"] .brand-name, [data-theme="kali"] h1, [data-theme="kali"] h2 {
  text-shadow: 0 0 10px rgba(0,175,239,.35);
}

/* Terminal — pure black + green CRT */
[data-theme="terminal"] {
  --bg-0:#000000; --bg-1:#000000; --bg-2:#020a06; --bg-3:#031a10; --bg-elev:#02120b;
  --line:#0e6a3e; --line-soft:#063a22;
  --text:#33ff66; --text-dim:#28cc52; --text-mute:#1b8033;
  --primary:#33ff66; --primary-2:#00cc55; --accent:#33ff66;
  --danger:#ff5555; --warning:#ffd400; --success:#33ff66;
  --grad-1: linear-gradient(135deg,#33ff66 0%,#00cc55 100%);
  --grad-2: linear-gradient(135deg,#33ff66 0%,#1b8033 100%);
  --grad-bg: radial-gradient(900px 500px at 50% -10%, rgba(51,255,102,.10), transparent 60%),
             repeating-linear-gradient(0deg, rgba(51,255,102,.05) 0 1px, transparent 1px 3px);
  --shadow: 0 0 0 1px rgba(51,255,102,.3), 0 0 24px rgba(51,255,102,.18);
}
[data-theme="terminal"] body {
  font-family: "VT323", "Courier New", "JetBrains Mono", ui-monospace, monospace;
  text-shadow: 0 0 4px rgba(51,255,102,.55);
}
[data-theme="terminal"] .btn,
[data-theme="terminal"] .input,
[data-theme="terminal"] .select,
[data-theme="terminal"] textarea {
  border-radius: 0; border: 1px solid #33ff66; background: #000; color: #33ff66;
}
[data-theme="terminal"] .btn-primary { background: #33ff66; color: #000; }
[data-theme="terminal"] .panel,
[data-theme="terminal"] .modal-card,
[data-theme="terminal"] .chat-side,
[data-theme="terminal"] .chat-main { border-radius: 4px; }

/* Matrix — black + cascading green */
[data-theme="matrix"] {
  --bg-0:#000000; --bg-1:#000000; --bg-2:#03150b; --bg-3:#062313; --bg-elev:#031c10;
  --line:#0e6a3e; --line-soft:#063a22;
  --text:#aaffc6; --text-dim:#52c98a; --text-mute:#2c7a52;
  --primary:#00ff66; --primary-2:#00cc55; --accent:#00ff99;
  --danger:#ff3860; --warning:#ffd400; --success:#00ff66;
  --grad-1: linear-gradient(135deg,#00ff66 0%,#00cc55 100%);
  --grad-bg:
    radial-gradient(900px 600px at 50% -10%, rgba(0,255,102,.10), transparent 60%),
    repeating-linear-gradient(180deg, rgba(0,255,102,.06) 0 1px, transparent 1px 6px);
}
[data-theme="matrix"] body {
  font-family: "JetBrains Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
  text-shadow: 0 0 6px rgba(0,255,102,.45);
}

/* Per-room flavour for the new themes (apply within .chat as well) */
.chat[data-theme="ubuntu"]   { --bg-2:#300a24; --bg-1:#2c001e; --line:#77216f; --line-soft:#5a1755; --text:#fff; --text-dim:#e8d3e0; --primary:#e95420; --accent:#aea79f; }
.chat[data-theme="kali"]     { --bg-2:#13202c; --bg-1:#0b0f17; --line:#1d3554; --line-soft:#142640; --text:#e7f1ff; --text-dim:#7fa8d4; --primary:#00afef; --accent:#5dd6ff; }
.chat[data-theme="matrix"]   { --bg-2:#03150b; --bg-1:#000;    --line:#0e6a3e; --line-soft:#063a22; --text:#aaffc6; --text-dim:#52c98a; --primary:#00ff66; --accent:#00ff99; }
.chat[data-theme="terminal"] { --bg-2:#020a06; --bg-1:#000;    --line:#0e6a3e; --line-soft:#063a22; --text:#33ff66; --text-dim:#28cc52; --primary:#33ff66; --accent:#33ff66; }

/* =========================================================
   v1.3.0 — additional themes (Oceanic, Sunset) — 20 total
   ========================================================= */

/* Oceanic — deep tide */
[data-theme="oceanic"] {
  --bg-0:#04141f; --bg-1:#06202f; --bg-2:#0a2c41; --bg-3:#0f3a55; --bg-elev:#0c3349;
  --line:#1a4f70; --line-soft:#0e3855;
  --text:#dff3ff; --text-dim:#8fc4e0; --text-mute:#5a8aa8;
  --primary:#22d3ee; --primary-2:#0ea5e9; --accent:#5eead4;
  --danger:#fb7185; --warning:#fbbf24; --success:#34d399;
  --grad-1: linear-gradient(135deg,#22d3ee 0%,#0ea5e9 100%);
  --grad-2: linear-gradient(135deg,#5eead4 0%,#22d3ee 100%);
  --grad-bg: radial-gradient(900px 600px at 80% -10%, rgba(34,211,238,.18), transparent 60%),
             radial-gradient(800px 500px at 0% 100%, rgba(14,165,233,.20), transparent 60%);
}
.chat[data-theme="oceanic"] { --bg-2:#0a2c41; --bg-1:#04141f; --line:#1a4f70; --line-soft:#0e3855; --text:#dff3ff; --text-dim:#8fc4e0; --primary:#22d3ee; --accent:#5eead4; }

/* Sunset — warm dusk */
[data-theme="sunset"] {
  --bg-0:#1a0a14; --bg-1:#22101a; --bg-2:#2e1622; --bg-3:#3e1d2c; --bg-elev:#341a26;
  --line:#5d2a3c; --line-soft:#421e2c;
  --text:#fff2e6; --text-dim:#f4c4a8; --text-mute:#b88770;
  --primary:#fb7185; --primary-2:#f97316; --accent:#fbbf24;
  --danger:#ef4444; --warning:#fbbf24; --success:#84cc16;
  --grad-1: linear-gradient(135deg,#fb7185 0%,#f97316 50%,#fbbf24 100%);
  --grad-2: linear-gradient(135deg,#fbbf24 0%,#fb7185 100%);
  --grad-bg: radial-gradient(1000px 600px at 70% -10%, rgba(251,113,133,.22), transparent 60%),
             radial-gradient(900px 600px at 10% 110%, rgba(249,115,22,.18), transparent 60%);
}
.chat[data-theme="sunset"] { --bg-2:#2e1622; --bg-1:#1a0a14; --line:#5d2a3c; --line-soft:#421e2c; --text:#fff2e6; --text-dim:#f4c4a8; --primary:#fb7185; --accent:#fbbf24; }

/* Swatches for the theme picker */
.sw-oceanic { background: linear-gradient(135deg,#22d3ee 0%,#0ea5e9 50%,#04141f 100%); }
.sw-sunset  { background: linear-gradient(135deg,#fbbf24 0%,#fb7185 50%,#22101a 100%); }

/* =========================================================
   v1.3.2 — 6 more themes (Forest, Lavender, Carbon, Coffee, Hacker, Mint)
   ========================================================= */

/* Forest — pine & moss */
[data-theme="forest"] {
  --bg-0:#0a1410; --bg-1:#0f1c16; --bg-2:#152821; --bg-3:#1d3a30; --bg-elev:#19332a;
  --line:#2d5a48; --line-soft:#1e4034;
  --text:#e6f4ec; --text-dim:#9bc4ad; --text-mute:#5c8773;
  --primary:#4ade80; --primary-2:#16a34a; --accent:#86efac;
  --danger:#f87171; --warning:#facc15; --success:#22c55e;
  --grad-1: linear-gradient(135deg,#4ade80 0%,#16a34a 100%);
  --grad-bg: radial-gradient(900px 600px at 80% -10%, rgba(74,222,128,.15), transparent 60%),
             radial-gradient(800px 500px at 0% 100%, rgba(22,163,74,.18), transparent 60%);
}
.chat[data-theme="forest"] { --bg-2:#152821; --bg-1:#0a1410; --line:#2d5a48; --line-soft:#1e4034; --text:#e6f4ec; --text-dim:#9bc4ad; --primary:#4ade80; --accent:#86efac; }

/* Lavender — soft purple */
[data-theme="lavender"] {
  --bg-0:#1a1326; --bg-1:#221a30; --bg-2:#2d2440; --bg-3:#3a2f54; --bg-elev:#332a4a;
  --line:#5a4880; --line-soft:#3f3460;
  --text:#f0eafc; --text-dim:#c4b5e8; --text-mute:#8a7ab0;
  --primary:#c084fc; --primary-2:#a855f7; --accent:#e9d5ff;
  --danger:#fb7185; --warning:#fbbf24; --success:#86efac;
  --grad-1: linear-gradient(135deg,#c084fc 0%,#a855f7 100%);
  --grad-bg: radial-gradient(900px 600px at 80% -10%, rgba(192,132,252,.20), transparent 60%);
}
.chat[data-theme="lavender"] { --bg-2:#2d2440; --bg-1:#1a1326; --line:#5a4880; --line-soft:#3f3460; --text:#f0eafc; --text-dim:#c4b5e8; --primary:#c084fc; --accent:#e9d5ff; }

/* Carbon — industrial */
[data-theme="carbon"] {
  --bg-0:#0d0d0f; --bg-1:#141416; --bg-2:#1c1c20; --bg-3:#26262c; --bg-elev:#222228;
  --line:#3a3a44; --line-soft:#2a2a32;
  --text:#e8e8ec; --text-dim:#a0a0a8; --text-mute:#62626a;
  --primary:#ff6b35; --primary-2:#e55a2b; --accent:#ffa07a;
  --danger:#ef4444; --warning:#fbbf24; --success:#10b981;
  --grad-1: linear-gradient(135deg,#ff6b35 0%,#e55a2b 100%);
  --grad-bg: radial-gradient(900px 600px at 80% -10%, rgba(255,107,53,.10), transparent 60%),
             repeating-linear-gradient(45deg, transparent 0 20px, rgba(255,255,255,.015) 20px 21px);
}
.chat[data-theme="carbon"] { --bg-2:#1c1c20; --bg-1:#0d0d0f; --line:#3a3a44; --line-soft:#2a2a32; --text:#e8e8ec; --text-dim:#a0a0a8; --primary:#ff6b35; --accent:#ffa07a; }

/* Coffee — warm sepia */
[data-theme="coffee"] {
  --bg-0:#1a1310; --bg-1:#221a14; --bg-2:#2d231b; --bg-3:#3d3024; --bg-elev:#352a20;
  --line:#5a4634; --line-soft:#3f3224;
  --text:#f5e8d8; --text-dim:#c8a888; --text-mute:#8a7058;
  --primary:#d97706; --primary-2:#b45309; --accent:#fbbf24;
  --danger:#dc2626; --warning:#fbbf24; --success:#84cc16;
  --grad-1: linear-gradient(135deg,#d97706 0%,#b45309 100%);
  --grad-bg: radial-gradient(900px 600px at 80% -10%, rgba(217,119,6,.15), transparent 60%);
}
.chat[data-theme="coffee"] { --bg-2:#2d231b; --bg-1:#1a1310; --line:#5a4634; --line-soft:#3f3224; --text:#f5e8d8; --text-dim:#c8a888; --primary:#d97706; --accent:#fbbf24; }

/* Hacker — amber CRT */
[data-theme="hacker"] {
  --bg-0:#0a0500; --bg-1:#0e0700; --bg-2:#140a02; --bg-3:#1f1004; --bg-elev:#180c03;
  --line:#6b3a00; --line-soft:#3d2200;
  --text:#ffb000; --text-dim:#cc8800; --text-mute:#805500;
  --primary:#ffb000; --primary-2:#cc8800; --accent:#ffcc33;
  --danger:#ff5555; --warning:#ffcc33; --success:#ffb000;
  --grad-1: linear-gradient(135deg,#ffb000 0%,#cc8800 100%);
  --grad-bg: radial-gradient(900px 500px at 50% -10%, rgba(255,176,0,.12), transparent 60%),
             repeating-linear-gradient(0deg, rgba(255,176,0,.05) 0 1px, transparent 1px 3px);
  --shadow: 0 0 0 1px rgba(255,176,0,.3), 0 0 24px rgba(255,176,0,.18);
}
[data-theme="hacker"] body {
  font-family: "VT323", "Courier New", "JetBrains Mono", ui-monospace, monospace;
  text-shadow: 0 0 4px rgba(255,176,0,.55);
}
.chat[data-theme="hacker"] { --bg-2:#140a02; --bg-1:#0a0500; --line:#6b3a00; --line-soft:#3d2200; --text:#ffb000; --text-dim:#cc8800; --primary:#ffb000; --accent:#ffcc33; }

/* Mint — fresh light */
[data-theme="mint"] {
  --bg-0:#f0fdf9; --bg-1:#e6faf2; --bg-2:#d4f5e8; --bg-3:#bdedd6; --bg-elev:#fff;
  --line:#86efac; --line-soft:#a7f3c8;
  --text:#0f3a26; --text-dim:#2d6a4a; --text-mute:#5c8773;
  --primary:#10b981; --primary-2:#059669; --accent:#34d399;
  --danger:#dc2626; --warning:#d97706; --success:#10b981;
  --grad-1: linear-gradient(135deg,#10b981 0%,#059669 100%);
  --grad-bg: radial-gradient(900px 600px at 80% -10%, rgba(16,185,129,.12), transparent 60%);
}
.chat[data-theme="mint"] { --bg-2:#d4f5e8; --bg-1:#e6faf2; --line:#86efac; --line-soft:#a7f3c8; --text:#0f3a26; --text-dim:#2d6a4a; --primary:#10b981; --accent:#34d399; }

/* Swatches */
.sw-forest   { background: linear-gradient(135deg,#4ade80 0%,#16a34a 50%,#0a1410 100%); }
.sw-lavender { background: linear-gradient(135deg,#e9d5ff 0%,#c084fc 50%,#1a1326 100%); }
.sw-carbon   { background: linear-gradient(135deg,#ff6b35 0%,#3a3a44 50%,#0d0d0f 100%); }
.sw-coffee   { background: linear-gradient(135deg,#fbbf24 0%,#d97706 50%,#1a1310 100%); }
.sw-hacker   { background: linear-gradient(135deg,#ffcc33 0%,#ffb000 50%,#0a0500 100%); }
.sw-mint     { background: linear-gradient(135deg,#fff 0%,#34d399 50%,#10b981 100%); }

/* Legal & info pages polish */
.legal { max-width: 820px; margin: 0 auto; padding: 8px 4px 40px; }
.legal-hero { padding: 28px 0 16px; border-bottom: 1px solid var(--line-soft); margin-bottom: 24px; }
.legal-hero h1 { font-size: clamp(28px, 4vw, 40px); margin: 0 0 10px; letter-spacing: -.5px; }
.legal-hero .lead { font-size: 17px; line-height: 1.65; color: var(--text-dim); }
.legal-hero .meta { color: var(--text-mute); font-size: 13px; margin-top: 10px; }
.legal section { margin: 26px 0; }
.legal section h2 { font-size: 19px; margin: 0 0 10px; color: var(--text); letter-spacing: -.2px; }
.legal section p, .legal section li { line-height: 1.7; color: var(--text-dim); }
.legal-foot { margin-top: 40px; padding-top: 18px; border-top: 1px solid var(--line-soft); color: var(--text-mute); font-size: 13px; text-align: center; }

/* =========================================================
   v1.4 — Epilda spirituality theme + Sanctuary set
   ========================================================= */
[data-theme="epilda"] {
  --bg-0:#050403; --bg-1:#0a0807; --bg-2:#100d0a; --bg-3:#181410; --bg-elev:#141109;
  --line:#3a2d18; --line-soft:#26200f;
  --text:#f5ecd7; --text-dim:#c9b88a; --text-mute:#8a7a52;
  --primary:#d4af37; --primary-2:#f1d27a; --accent:#e6c870;
  --grad-1: linear-gradient(135deg, #d4af37 0%, #f1d27a 50%, #b8902a 100%);
  --grad-2: linear-gradient(135deg, #c9a14a 0%, #2d2515 100%);
  --grad-bg: radial-gradient(1200px 650px at 75% -10%, rgba(212,175,55,.18), transparent 60%),
             radial-gradient(900px 500px at -10% 30%, rgba(241,210,122,.10), transparent 60%),
             radial-gradient(700px 360px at 50% 110%, rgba(184,144,42,.08), transparent 60%);
}
[data-theme="sage"] {
  --bg-0:#0c1410; --bg-1:#101a14; --bg-2:#16241c; --bg-3:#1d2f24; --bg-elev:#192a20;
  --line:#2a4536; --line-soft:#1f3429;
  --text:#e8f5ec; --text-dim:#a8c4b3; --text-mute:#6f8c7c;
  --primary:#7cc295; --primary-2:#c5b783; --accent:#a8d8b9;
  --grad-1: linear-gradient(135deg, #7cc295 0%, #a8d8b9 100%);
}
[data-theme="lotus"] {
  --bg-0:#1a0f17; --bg-1:#22131e; --bg-2:#2d1a29; --bg-3:#3b2336; --bg-elev:#321d2e;
  --line:#4f2c47; --line-soft:#3b2336;
  --text:#ffe9f3; --text-dim:#d8a9c4; --text-mute:#9c7090;
  --primary:#ff9ec7; --primary-2:#ffd17a; --accent:#ffb86b;
  --grad-1: linear-gradient(135deg, #ff9ec7 0%, #ffd17a 100%);
}
[data-theme="zen"] {
  --bg-0:#11110d; --bg-1:#181712; --bg-2:#21201a; --bg-3:#2b2922; --bg-elev:#252420;
  --line:#3a3830; --line-soft:#2b2922;
  --text:#ece7d6; --text-dim:#b6ad95; --text-mute:#7d765f;
  --primary:#8fa67d; --primary-2:#c2a878; --accent:#a8b894;
  --grad-1: linear-gradient(135deg, #8fa67d 0%, #c2a878 100%);
}
[data-theme="celestial"] {
  --bg-0:#070a1c; --bg-1:#0b0f26; --bg-2:#121734; --bg-3:#1b2147; --bg-elev:#171c3d;
  --line:#2c3470; --line-soft:#1f2553;
  --text:#e6e8ff; --text-dim:#a7adde; --text-mute:#7077b3;
  --primary:#7c8cff; --primary-2:#ffd17a; --accent:#9ec5ff;
  --grad-1: linear-gradient(135deg, #7c8cff 0%, #ffd17a 100%);
  --grad-bg: radial-gradient(1200px 600px at 70% -10%, rgba(124,140,255,.22), transparent 60%),
             radial-gradient(800px 500px at 10% 110%, rgba(255,209,122,.12), transparent 60%);
}
[data-theme="amber-temple"] {
  --bg-0:#1a0f05; --bg-1:#22150a; --bg-2:#2d1d10; --bg-3:#3a2716; --bg-elev:#322013;
  --line:#5a3a1d; --line-soft:#3a2716;
  --text:#ffeed6; --text-dim:#d6b187; --text-mute:#9c7d56;
  --primary:#ffaa3c; --primary-2:#ff7a3c; --accent:#ffd17a;
  --grad-1: linear-gradient(135deg, #ffaa3c 0%, #ff7a3c 100%);
}

/* Theme-picker swatches for the new themes */
.sw-epilda       { background: linear-gradient(135deg,#0a0807 0%,#0a0807 38%,#d4af37 60%,#f1d27a 100%); border:1px solid #3a2d18; }
.sw-sage         { background: linear-gradient(135deg,#7cc295,#a8d8b9); }
.sw-lotus        { background: linear-gradient(135deg,#ff9ec7,#ffd17a); }
.sw-zen          { background: linear-gradient(135deg,#8fa67d,#c2a878); }
.sw-celestial    { background: linear-gradient(135deg,#7c8cff,#ffd17a); }
.sw-amber-temple { background: linear-gradient(135deg,#ffaa3c,#ff7a3c); }

/* In-room theme variants for new themes */
.chat[data-theme="epilda"]       { --bg-2:#100d0a; --bg-1:#0a0807; --line:#3a2d18; --line-soft:#26200f; --text:#f5ecd7; --text-dim:#c9b88a; --primary:#d4af37; --accent:#e6c870; }
.chat[data-theme="sage"]         { --bg-2:#16241c; --bg-1:#101a14; --line:#2a4536; --line-soft:#1f3429; --text:#e8f5ec; --text-dim:#a8c4b3; --primary:#7cc295; --accent:#a8d8b9; }
.chat[data-theme="lotus"]        { --bg-2:#2d1a29; --bg-1:#22131e; --line:#4f2c47; --line-soft:#3b2336; --text:#ffe9f3; --text-dim:#d8a9c4; --primary:#ff9ec7; --accent:#ffd17a; }
.chat[data-theme="zen"]          { --bg-2:#21201a; --bg-1:#181712; --line:#3a3830; --line-soft:#2b2922; --text:#ece7d6; --text-dim:#b6ad95; --primary:#8fa67d; --accent:#c2a878; }
.chat[data-theme="celestial"]    { --bg-2:#121734; --bg-1:#0b0f26; --line:#2c3470; --line-soft:#1f2553; --text:#e6e8ff; --text-dim:#a7adde; --primary:#7c8cff; --accent:#ffd17a; }
.chat[data-theme="amber-temple"] { --bg-2:#2d1d10; --bg-1:#22150a; --line:#5a3a1d; --line-soft:#3a2716; --text:#ffeed6; --text-dim:#d6b187; --primary:#ffaa3c; --accent:#ffd17a; }

/* =========================================================
   v1.4 — Epilda nav pill + hero CTA
   ========================================================= */
.nav-epilda {
  background: linear-gradient(135deg, color-mix(in oklab, var(--primary) 22%, transparent), color-mix(in oklab, var(--accent) 22%, transparent));
  border: 1px solid color-mix(in oklab, var(--primary) 45%, transparent);
  color: var(--text) !important;
}
.nav-epilda i { color: var(--accent); }
.nav-epilda.is-on { background: color-mix(in oklab, var(--accent) 18%, transparent); border-color: color-mix(in oklab, var(--accent) 50%, transparent); }
.hero-sub-cta { margin: 14px 0 0; }
.epilda-pill {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 9px 16px; border-radius: 999px;
  background: linear-gradient(135deg, color-mix(in oklab, var(--primary) 22%, transparent), color-mix(in oklab, var(--accent) 22%, transparent));
  border: 1px solid color-mix(in oklab, var(--primary) 50%, transparent);
  color: var(--text); font-size: 13.5px; font-weight: 500;
  transition: transform .15s ease, filter .15s ease;
}
.epilda-pill:hover { transform: translateY(-1px); filter: brightness(1.08); }
.epilda-pill i { color: var(--accent); }
.epilda-pill.is-on { background: color-mix(in oklab, var(--accent) 18%, transparent); }
.epilda-pill strong { color: var(--accent); font-weight: 700; }

/* =========================================================
   v1.4 — 8-card feature grid (was 6) + SEO article styles
   ========================================================= */
.features {
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}
@media (min-width: 1100px) {
  .features { grid-template-columns: repeat(4, 1fr); }
}
.card.f { position: relative; overflow: hidden; }
.card.f::after {
  content: ""; position: absolute; inset: -1px; border-radius: inherit; pointer-events: none;
  background: linear-gradient(135deg, transparent 60%, color-mix(in oklab, var(--primary) 12%, transparent));
  opacity: 0; transition: opacity .25s;
}
.card.f:hover::after { opacity: 1; }

.seo-article {
  margin: 56px auto 0;
  max-width: 880px;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.7;
}
.seo-article h2 {
  color: var(--text); font-size: 22px;
  letter-spacing: -.01em; margin: 36px 0 14px; font-weight: 700;
}
.seo-article h3 { color: var(--text); font-size: 16px; margin: 0 0 8px; }
.seo-article .lede { font-size: 16px; margin: 0 0 22px; }
.seo-article ul, .seo-article ol { padding-left: 22px; margin: 0 0 18px; }
.seo-article li { margin: 6px 0; }
.seo-article .grid2 {
  display: grid; gap: 14px; margin: 18px 0 10px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.seo-article code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: var(--bg-2); border: 1px solid var(--line-soft);
  padding: 1px 6px; border-radius: 6px; font-size: 13px; color: var(--text);
}
.seo-article .faq { margin-top: 28px; }
.seo-article details {
  border: 1px solid var(--line-soft); border-radius: var(--radius-sm);
  background: var(--bg-1); margin: 8px 0; padding: 4px 14px;
  transition: border-color .15s, background .15s;
}
.seo-article details[open] { border-color: color-mix(in oklab, var(--primary) 40%, var(--line)); background: var(--bg-2); }
.seo-article summary {
  cursor: pointer; padding: 10px 0; font-weight: 600; color: var(--text);
  list-style: none;
}
.seo-article summary::-webkit-details-marker { display: none; }
.seo-article summary::before {
  content: "+"; display: inline-block; width: 16px; color: var(--primary); font-weight: 700;
  transition: transform .15s;
}
.seo-article details[open] summary::before { content: "−"; }
.seo-article details p { margin: 0 0 10px; padding-left: 16px; }

/* Slight polish: make the panel feel more clickable */
.panel { transition: transform .2s ease, border-color .2s ease; }
.panel:hover { border-color: color-mix(in oklab, var(--primary) 30%, var(--line)); }
.btn-primary { transition: transform .12s ease, filter .12s ease; }
.btn-primary:active { transform: scale(.97); }

/* =========================================================
   v1.5 — Ad slots, share page promo blocks, trust strip
   ========================================================= */

/* Theme-aware ad placeholder. The slot reserves --ad-h to
   prevent layout shift even before the ad script paints. */
.ad-slot {
  display: block;
  margin: 28px auto;
  max-width: 980px;
  padding: 14px 16px 12px;
  border-radius: 14px;
  background: color-mix(in oklab, var(--bg-2) 92%, var(--primary) 5%);
  border: 1px solid var(--line-soft);
  position: relative;
}
.ad-slot .ad-label {
  font-size: 10.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin: 0 0 8px;
  font-weight: 600;
}
.ad-slot .ad-frame {
  min-height: var(--ad-h, 110px);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  border-radius: 10px;
  background: color-mix(in oklab, var(--bg-1) 70%, transparent);
}
.ad-slot .ad-frame > * { max-width: 100%; }
.ad-slot-leaderboard { max-width: 970px; }
.ad-slot-rectangle   { max-width: 720px; }
.ad-slot-banner      { max-width: 720px; }
@media (max-width: 720px) {
  .ad-slot { margin: 20px 12px; padding: 10px 12px 10px; border-radius: 12px; }
}

/* Share page — trust strip just under the header */
.trust-strip {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin: 14px 0 18px;
  padding: 10px 12px;
  background: color-mix(in oklab, var(--bg-2) 92%, transparent);
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  font-size: 13px; color: var(--text-dim);
}
.trust-strip .trust-item {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 4px 10px;
  border-radius: 999px;
  background: color-mix(in oklab, var(--bg-1) 70%, transparent);
  border: 1px solid var(--line-soft);
}
.trust-strip .trust-item i { color: var(--primary); }

/* Share page — supporting info cards (4-up) */
.share-info {
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin: 22px 0 6px;
}
.share-info .info-card {
  background: var(--bg-2);
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  padding: 16px 16px 14px;
}
.share-info .info-card h3 { margin: 8px 0 6px; font-size: 15px; color: var(--text); }
.share-info .info-card p  { margin: 0 0 8px; font-size: 13.5px; color: var(--text-dim); line-height: 1.55; }
.share-info .info-card.highlight {
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--primary) 8%, var(--bg-2)) 0%,
    var(--bg-2) 100%);
  border-color: color-mix(in oklab, var(--primary) 35%, var(--line));
}
.share-info .info-card .ico {
  width: 36px; height: 36px; border-radius: 10px;
  display: inline-flex; align-items: center; justify-content: center;
  background: color-mix(in oklab, var(--primary) 22%, transparent);
  color: var(--primary);
}

/* Share page — recipient FAQ */
.share-faq {
  margin: 22px 0 6px;
  padding: 14px 16px;
  background: var(--bg-2);
  border: 1px solid var(--line-soft);
  border-radius: 14px;
}
.share-faq summary {
  cursor: pointer;
  font-weight: 600; color: var(--text);
  list-style: none; padding: 4px 0;
}
.share-faq summary::-webkit-details-marker { display: none; }
.share-faq summary i { color: var(--primary); margin-right: 8px; }
.share-faq-body {
  display: grid; gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  margin-top: 12px;
}
.share-faq-body h4 { margin: 0 0 6px; font-size: 14px; color: var(--text); }
.share-faq-body p  { margin: 0; font-size: 13px; color: var(--text-dim); line-height: 1.6; }

/* Share page — cross-promo strip */
.share-promo { margin: 22px 0 8px; }
.share-promo .promo-card {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  background: var(--bg-2);
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  padding: 16px 18px;
}
.share-promo .promo-card > div { flex: 1 1 220px; }
.share-promo .promo-card strong { color: var(--text); font-size: 15px; }
.share-promo .promo-card p { margin: 4px 0 0; color: var(--text-dim); font-size: 13.5px; }
.share-promo .promo-card .ico {
  width: 40px; height: 40px; border-radius: 10px;
  display: inline-flex; align-items: center; justify-content: center;
  background: color-mix(in oklab, var(--primary) 22%, transparent);
  color: var(--primary);
  flex: 0 0 40px;
}
.share-meta { margin: 8px 0 0; }

/* File card: ensure download icon spacing reads cleanly */
.file-card .fc-sub i { margin: 0 4px 0 2px; opacity: .8; }