/* ==========================================================================
   Meet GodCraft — design system
   One warm accent ramp (red → orange → yellow), one radius scale, one motion
   language. Glass is used for chrome and overlays only; content stays opaque.
   ========================================================================== */

/* -------------------------------------------------------------- 0. fonts -- */
/* Bundled locally: no external font CDN, so the CSP stays `self` and the app
   renders the same offline. Licenses sit next to the files. */

@font-face {
  font-family: "Inter";
  src: url("/fonts/InterVariable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Vazirmatn";
  src: url("/fonts/VazirmatnVariable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0600-06FF, U+0750-077F, U+0870-088E, U+0890-0891,
    U+0898-08E1, U+08E3-08FF, U+200C-200E, U+2010-2011, U+204F, U+2E41,
    U+FB50-FDFF, U+FE70-FE74, U+FE76-FEFC;
}

@font-face {
  font-family: "JetBrains Mono";
  src: url("/fonts/JetBrainsMono-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

/* ------------------------------------------------------------- 1. tokens -- */

:root {
  /* The brand ramp is the only chromatic axis in the product. */
  --red: #ff3b30;
  --orange: #ff8c2b;
  --yellow: #ffc82b;
  --brand: linear-gradient(135deg, var(--red) 0%, var(--orange) 52%, var(--yellow) 100%);
  --brand-flat: #ff6a2b;

  /* Warm neutrals. Every grey carries a little red, so nothing reads cold. */
  --bg: #0c0806;
  --surface-1: #171110;
  --surface-2: #201816;
  --surface-3: #2b211d;
  --surface-4: #3a2c26;
  --border: rgb(255 255 255 / 0.09);
  --border-strong: rgb(255 255 255 / 0.16);

  --text: #f8f2ee;
  --text-muted: #b6a49a;
  --text-subtle: #a89488;
  --on-brand: #1a0d05;

  --success: #34d17a;
  --warning: var(--yellow);
  --danger: #ff4d4d;
  --danger-soft: rgb(255 77 77 / 0.14);
  --info: var(--orange);

  /* Glass: three levels, mapping to three planes. */
  --glass-blur-1: 10px;
  --glass-blur-2: 16px;
  --glass-blur-3: 28px;
  --glass-saturate: 150%;
  --glass-1-bg: rgb(23 17 16 / 0.72);
  --glass-2-bg: rgb(23 17 16 / 0.78);
  --glass-3-bg: rgb(16 11 10 / 0.88);
  --glass-1-border: rgb(255 255 255 / 0.08);
  --glass-2-border: rgb(255 255 255 / 0.10);
  --glass-3-border: rgb(255 255 255 / 0.12);
  --glass-edge: rgb(0 0 0 / 0.4);
  --glass-highlight: rgb(255 255 255 / 0.10);
  --glass-tint: rgb(255 106 43 / 0.06);

  /* Radius: one scale, one role each. */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 999px;

  /* Spacing rhythm — 4px base. */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

  --shadow-1: 0 1px 2px rgb(0 0 0 / 0.4);
  --shadow-2: 0 4px 12px rgb(0 0 0 / 0.4);
  --shadow-3: 0 12px 32px rgb(0 0 0 / 0.45);
  --shadow-4: 0 24px 64px rgb(0 0 0 / 0.55);
  --glow: 0 8px 32px rgb(255 106 43 / 0.32);

  /* Layout */
  --header-h: 64px;
  --sidebar-w: 264px;
  --container: 1200px;
  --container-pad: clamp(16px, 4vw, 40px);

  /* Shell stacking order — never a magic z-index outside this list. */
  --z-0: 0;
  --z-raised: 10;
  --z-sticky: 100;
  --z-drawer: 200;
  --z-modal: 300;
  --z-popover: 400;
  --z-toast: 500;
  --z-tooltip: 600;

  /* Motion: one duration per interaction class. */
  --dur-instant: 90ms;
  --dur-fast: 160ms;
  --dur-base: 240ms;
  --dur-slow: 380ms;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  --font: "Inter", "Vazirmatn", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-fa: "Vazirmatn", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Tahoma, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

/* ------------------------------------------------------------- 2. reset -- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scrollbar-color: var(--surface-4) transparent;
}

body {
  margin: 0;
  min-block-size: 100vh;
  min-block-size: 100dvh;
  -webkit-tap-highlight-color: transparent;
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.55;
  color: var(--text);
  background-color: var(--bg);
  /* The forge: warm light pooling behind the content. */
  background-image:
    radial-gradient(900px 600px at 12% -8%, rgb(255 59 48 / 0.16), transparent 62%),
    radial-gradient(760px 560px at 88% 4%, rgb(255 200 43 / 0.12), transparent 60%),
    radial-gradient(1000px 700px at 50% 108%, rgb(255 140 43 / 0.10), transparent 65%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, p, figure, blockquote, dl, dd {
  margin: 0;
}

h1, h2, h3, h4 {
  line-height: 1.18;
  letter-spacing: -0.022em;
  font-weight: 650;
  text-wrap: balance;
}

h1 { font-size: clamp(2.1rem, 5.2vw, 3.5rem); letter-spacing: -0.035em; }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.1rem); letter-spacing: -0.028em; }
h3 { font-size: 1.15rem; }

a {
  color: inherit;
  text-decoration: none;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

ul, ol { margin: 0; padding: 0; list-style: none; }

img, svg, video { display: block; max-inline-size: 100%; }

:focus-visible {
  outline: 2px solid var(--yellow);
  outline-offset: 2px;
  border-radius: var(--radius-xs);
}

::selection {
  background: rgb(255 140 43 / 0.35);
}

/* Scrollbars, kept quiet. */
::-webkit-scrollbar { inline-size: 10px; block-size: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--surface-4);
  border: 3px solid transparent;
  background-clip: content-box;
  border-radius: var(--radius-pill);
}
::-webkit-scrollbar-thumb:hover { background-color: #4d3a32; background-clip: content-box; }

.skip-link {
  position: absolute;
  inset-block-start: -100px;
  inset-inline-start: var(--space-4);
  z-index: var(--z-tooltip);
  padding: var(--space-3) var(--space-4);
  background: var(--brand);
  color: var(--on-brand);
  font-weight: 650;
  border-radius: var(--radius-sm);
  transition: inset-block-start var(--dur-fast) var(--ease-out);
}
.skip-link:focus { inset-block-start: var(--space-4); }

.visually-hidden {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

[hidden] {
  display: none !important;
}

/* --------------------------------------------------------- 3. glass ---- */
/* Opaque first, then upgraded only where the browser can actually blur. */

.glass-1,
.glass-2,
.glass-3 {
  background: var(--surface-1);
  border: 1px solid var(--border);
  position: relative;
}

@supports ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .glass-1 {
    background: var(--glass-1-bg);
    -webkit-backdrop-filter: blur(var(--glass-blur-1)) saturate(var(--glass-saturate));
    backdrop-filter: blur(var(--glass-blur-1)) saturate(var(--glass-saturate));
    border-color: var(--glass-1-border);
  }
  .glass-2 {
    background: var(--glass-2-bg);
    -webkit-backdrop-filter: blur(var(--glass-blur-2)) saturate(var(--glass-saturate));
    backdrop-filter: blur(var(--glass-blur-2)) saturate(var(--glass-saturate));
    border-color: var(--glass-2-border);
    box-shadow: 0 0 0 1px var(--glass-edge), var(--shadow-3);
  }
  .glass-3 {
    background: var(--glass-3-bg);
    -webkit-backdrop-filter: blur(var(--glass-blur-3)) saturate(var(--glass-saturate));
    backdrop-filter: blur(var(--glass-blur-3)) saturate(var(--glass-saturate));
    border-color: var(--glass-3-border);
    box-shadow: 0 0 0 1px var(--glass-edge), var(--shadow-4);
  }
}

/* The inset top highlight is what makes glass read as a pane, not a hole. */
.glass-2::before,
.glass-3::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 1px 0 var(--glass-highlight);
  pointer-events: none;
}

@media (prefers-reduced-transparency: reduce) {
  .glass-1, .glass-2, .glass-3 {
    background: var(--surface-2);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    border-color: var(--border-strong);
  }
}

@media (forced-colors: active) {
  .glass-1, .glass-2, .glass-3 {
    background: Canvas;
    border-color: CanvasText;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
}

/* ------------------------------------------------------- 4. primitives -- */

/* Buttons ------------------------------------------------------------------ */

.btn {
  --btn-bg: var(--surface-3);
  --btn-fg: var(--text);
  --btn-border: var(--border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-block-size: 44px;
  padding: 0 var(--space-4);
  border: 1px solid var(--btn-border);
  border-radius: var(--radius-sm);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: 0.925rem;
  font-weight: 600;
  letter-spacing: -0.006em;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              transform var(--dur-instant) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
}
.btn:hover:not(:disabled) { background: var(--surface-4); border-color: var(--border-strong); }
.btn:active:not(:disabled) { transform: scale(0.975); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn svg { inline-size: 18px; block-size: 18px; flex: none; }

.btn--primary {
  --btn-bg: var(--brand);
  --btn-fg: var(--on-brand);
  --btn-border: transparent;
  box-shadow: var(--glow);
}
.btn--primary:hover:not(:disabled) { background: var(--brand); filter: brightness(1.08); }

.btn--ghost { --btn-bg: transparent; --btn-border: transparent; color: var(--text-muted); }
.btn--ghost:hover:not(:disabled) { background: var(--surface-3); color: var(--text); }

.btn--outline { --btn-bg: transparent; --btn-border: var(--border-strong); }

.btn--danger { --btn-bg: var(--danger-soft); --btn-fg: #ff8f8f; --btn-border: rgb(255 77 77 / 0.3); }
.btn--danger:hover:not(:disabled) { background: rgb(255 77 77 / 0.22); border-color: rgb(255 77 77 / 0.5); }

.btn--lg { min-block-size: 52px; padding: 0 var(--space-5); font-size: 1rem; border-radius: var(--radius-md); }
.btn--sm { min-block-size: 34px; padding: 0 var(--space-3); font-size: 0.85rem; }

.btn--block { inline-size: 100%; }

/* Icon button — square, used across the call chrome. */
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  inline-size: 44px;
  block-size: 44px;
  flex: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: var(--surface-3);
  color: var(--text);
  cursor: pointer;
  position: relative;
  transition: background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              transform var(--dur-instant) var(--ease-out);
}
.icon-btn:hover { background: var(--surface-4); border-color: var(--border-strong); }
.icon-btn:active { transform: scale(0.94); }
.icon-btn svg { inline-size: 20px; block-size: 20px; }
.icon-btn[aria-pressed="true"] { background: var(--surface-4); color: var(--text); border-color: var(--border-strong); }
.icon-btn--danger { background: var(--danger); border-color: transparent; color: #fff; }
.icon-btn--danger:hover { background: #ff6161; }
.icon-btn--brand { background: var(--brand); border-color: transparent; color: var(--on-brand); }
.icon-btn--brand:hover { background: var(--brand); filter: brightness(1.08); }

/* Semantic toggle states */
.icon-btn--off {
  background: var(--danger-soft) !important;
  color: #ff8f8f !important;
  border-color: rgb(255 77 77 / 0.4) !important;
}
.icon-btn--off:hover {
  background: rgb(255 77 77 / 0.28) !important;
  border-color: rgb(255 77 77 / 0.6) !important;
}
.icon-btn--active-brand {
  background: var(--brand) !important;
  color: var(--on-brand) !important;
  border-color: transparent !important;
  box-shadow: 0 0 18px rgb(255 106 43 / 0.45);
}
.icon-btn--active-warn {
  background: rgb(255 200 43 / 0.22) !important;
  color: var(--yellow) !important;
  border-color: rgb(255 200 43 / 0.45) !important;
  box-shadow: 0 0 16px rgb(255 200 43 / 0.35);
}

/* User account pill in topbar */
.account-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 4px 14px 4px 5px;
  border-radius: var(--radius-pill);
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-out);
}
.account-pill:hover {
  background: var(--surface-3);
  border-color: var(--border-strong);
}
.account-pill__name {
  font-weight: 600;
  font-size: 0.88rem;
  max-inline-size: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.account-pill__chevron svg {
  inline-size: 14px;
  block-size: 14px;
  color: var(--text-muted);
}

/* A small dot marking an unread panel. */
.icon-btn__dot {
  position: absolute;
  inset-block-start: 4px;
  inset-inline-end: 4px;
  inline-size: 9px;
  block-size: 9px;
  border-radius: var(--radius-pill);
  background: var(--yellow);
  box-shadow: 0 0 0 2px var(--surface-1);
  animation: dot-pulse 2s var(--ease-in-out) infinite;
}
@keyframes dot-pulse {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 2px var(--surface-1); }
  50% { transform: scale(1.18); box-shadow: 0 0 0 4px rgb(255 200 43 / 0.15); }
}

/* Fields ------------------------------------------------------------------- */

.field { display: grid; gap: var(--space-2); }

.field > label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.005em;
}

.input {
  inline-size: 100%;
  min-block-size: 48px;
  padding: 0 var(--space-4);
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  transition: border-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out);
}
.input::placeholder { color: var(--text-subtle); }
.input:hover { border-color: rgb(255 255 255 / 0.24); }
.input:focus {
  outline: none;
  border-color: var(--orange);
  background: var(--surface-3);
  box-shadow: 0 0 0 3px rgb(255 140 43 / 0.2);
}
.input[aria-invalid="true"] { border-color: var(--danger); box-shadow: 0 0 0 3px rgb(255 77 77 / 0.16); }

.input-group { position: relative; display: flex; align-items: center; }
.input-group .input { padding-inline-start: 44px; }
.input-group > svg {
  position: absolute;
  inset-inline-start: 14px;
  inline-size: 18px;
  block-size: 18px;
  color: var(--text-subtle);
  pointer-events: none;
}
/* paintIcons() keeps the placeholder span and fills it with an SVG. */
.input-group > span {
  position: absolute;
  inset-inline-start: 14px;
  display: grid;
  place-items: center;
  inline-size: 18px;
  block-size: 18px;
  color: var(--text-subtle);
  pointer-events: none;
}
.input-group > span svg {
  inline-size: 18px;
  block-size: 18px;
}
.input-group__action {
  position: absolute;
  inset-inline-end: 6px;
  background: none;
  border: 0;
  padding: 8px;
  color: var(--text-subtle);
  cursor: pointer;
  border-radius: var(--radius-xs);
}
.input-group__action:hover { color: var(--text); background: var(--surface-4); }

.field__error {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.83rem;
  color: #ff9a9a;
}
.field__error:empty { display: none; }
.field__error:not(:empty) {
  animation: error-in var(--dur-fast) var(--ease-out) both;
}
@keyframes error-in {
  from { opacity: 0; transform: translateY(-3px); }
  to { opacity: 1; transform: none; }
}
.field__hint { font-size: 0.8rem; color: var(--text-subtle); }

/* Cards, badges, avatars --------------------------------------------------- */

.card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  background: var(--surface-3);
  border: 1px solid var(--border);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text-muted);
}
.badge--live { background: rgb(52 209 122 / 0.14); border-color: rgb(52 209 122 / 0.3); color: #6ee7a4; }
.badge--locked { background: rgb(255 200 43 / 0.14); border-color: rgb(255 200 43 / 0.3); color: var(--yellow); }
.badge--brand { background: rgb(255 106 43 / 0.14); border-color: rgb(255 106 43 / 0.32); color: #ffb27a; }

.badge__pulse {
  inline-size: 6px;
  block-size: 6px;
  border-radius: var(--radius-pill);
  background: currentColor;
  animation: pulse 2s var(--ease-in-out) infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.avatar {
  --avatar-hue: 22;
  display: grid;
  place-items: center;
  inline-size: 40px;
  block-size: 40px;
  flex: none;
  border-radius: var(--radius-pill);
  background: linear-gradient(140deg, hsl(var(--avatar-hue) 86% 52%), hsl(calc(var(--avatar-hue) + 18) 92% 44%));
  color: #fff;
  text-shadow: 0 1px 2px rgb(0 0 0 / 0.5);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: -0.01em;
  user-select: none;
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.25), 0 2px 8px rgb(0 0 0 / 0.4);
}
.avatar--sm { inline-size: 28px; block-size: 28px; font-size: 0.7rem; }
.avatar--lg { inline-size: 88px; block-size: 88px; font-size: 1.9rem; }
.avatar--xl { inline-size: 104px; block-size: 104px; font-size: 2.3rem; }

/* Logo --------------------------------------------------------------------- */

.logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 700;
  letter-spacing: -0.03em;
}
.logo__mark {
  inline-size: 34px;
  block-size: 34px;
  flex: none;
  border-radius: var(--radius-sm);
  background: var(--brand);
  display: grid;
  place-items: center;
  color: var(--on-brand);
  box-shadow: var(--glow);
}
.logo__mark svg { inline-size: 20px; block-size: 20px; }
.logo__text { font-size: 1.08rem; }
.logo__text em { font-style: normal; color: var(--text-muted); font-weight: 550; }

/* Toasts ------------------------------------------------------------------- */

.toast-stack {
  position: fixed;
  inset-block-end: var(--space-5);
  inset-inline-start: 50%;
  transform: translateX(-50%);
  z-index: var(--z-toast);
  display: grid;
  gap: var(--space-2);
  inline-size: min(420px, calc(100vw - 32px));
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 550;
  pointer-events: auto;
  animation: toast-in var(--dur-base) var(--ease-spring);
}
.toast--leaving { animation: toast-out var(--dur-fast) var(--ease-out) forwards; }
.toast svg { inline-size: 18px; block-size: 18px; flex: none; }
.toast--error { color: #ffb0b0; }
.toast--success { color: #8bf0b6; }

@keyframes toast-in {
  from { opacity: 0; transform: translateY(14px) scale(0.96); }
  to { opacity: 1; transform: none; }
}
@keyframes toast-out {
  to { opacity: 0; transform: translateY(8px) scale(0.97); }
}

/* States ------------------------------------------------------------------- */

.empty {
  display: grid;
  justify-items: center;
  gap: var(--space-3);
  padding: var(--space-8) var(--space-5);
  text-align: center;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(var(--glass-tint), var(--glass-tint));
}
.empty__icon {
  display: grid;
  place-items: center;
  inline-size: 60px;
  block-size: 60px;
  border-radius: var(--radius-md);
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--orange);
}
.empty__icon svg { inline-size: 28px; block-size: 28px; }
.empty h3 { font-size: 1.05rem; }
.empty p { color: var(--text-muted); max-inline-size: 46ch; font-size: 0.9rem; }

.skeleton {
  border-radius: var(--radius-sm);
  background: linear-gradient(90deg, var(--surface-2) 25%, var(--surface-3) 50%, var(--surface-2) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s linear infinite;
}
.skeleton--title { block-size: 26px; inline-size: 42%; }
.skeleton--row { block-size: 72px; inline-size: 100%; }

@keyframes shimmer {
  from { background-position: 200% 0; }
  to { background-position: -200% 0; }
}

.spinner {
  inline-size: 16px;
  block-size: 16px;
  border: 2px solid currentColor;
  border-block-start-color: transparent;
  border-radius: var(--radius-pill);
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ------------------------------------------------------ 5. marketing shell */

.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: var(--z-sticky);
  block-size: var(--header-h);
  border-inline: 0;
  border-block-start: 0;
  border-radius: 0;
}
.site-header__inner {
  max-inline-size: var(--container);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  block-size: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-5);
}
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-inline-start: var(--space-4);
}
.site-nav a {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 550;
  transition: color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.site-nav a:hover { color: var(--text); background: var(--surface-2); }
.site-header__actions { margin-inline-start: auto; display: flex; align-items: center; gap: var(--space-2); }

.section {
  max-inline-size: var(--container);
  margin-inline: auto;
  padding: var(--space-9) var(--container-pad);
}
.section--tight { padding-block: var(--space-8); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange);
}
.eyebrow svg {
  inline-size: 16px;
  block-size: 16px;
  flex: none;
}

.lede {
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: var(--text-muted);
  max-inline-size: 60ch;
  text-wrap: pretty;
}

/* Hero --------------------------------------------------------------------- */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: clamp(32px, 6vw, 72px);
  align-items: center;
  padding-block: clamp(48px, 8vw, 96px);
}
.hero__copy { display: grid; gap: var(--space-5); justify-items: start; }
.hero__title .grad {
  background: var(--brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }

.hero__art { position: relative; }

/* A stylised call window used as the hero's visual. */
.mock {
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--surface-1);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-4);
  aspect-ratio: 16 / 10;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, 1fr);
  gap: 6px;
  padding: 6px;
}
.mock__tile {
  border-radius: var(--radius-sm);
  background: linear-gradient(150deg, var(--surface-3), var(--surface-2));
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
}
.mock__tile::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 90% at 30% 10%, rgb(255 140 43 / 0.16), transparent 70%);
}
.mock__tile--span { grid-row: span 2; }
.mock__tile--host { background: linear-gradient(150deg, rgb(255 59 48 / 0.24), var(--surface-2)); }
.mock__bar {
  position: absolute;
  inset-block-end: var(--space-4);
  inset-inline: 0;
  margin-inline: auto;
  inline-size: fit-content;
  display: flex;
  gap: var(--space-2);
  padding: var(--space-2);
  border-radius: var(--radius-pill);
}

/* Feature grid ------------------------------------------------------------- */

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-4);
  margin-block-start: var(--space-6);
}

.feature {
  display: grid;
  gap: var(--space-3);
  align-content: start;
  padding: var(--space-5);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}
.feature:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.feature__icon {
  display: grid;
  place-items: center;
  inline-size: 42px;
  block-size: 42px;
  border-radius: var(--radius-sm);
  background: linear-gradient(140deg, rgb(255 59 48 / 0.18), rgb(255 200 43 / 0.14));
  border: 1px solid rgb(255 140 43 / 0.25);
  color: var(--orange);
}
.feature__icon svg { inline-size: 21px; block-size: 21px; }
.feature p { color: var(--text-muted); font-size: 0.9rem; }

.section-head { display: grid; gap: var(--space-3); justify-items: start; }

/* Footer ------------------------------------------------------------------- */

.site-footer {
  border-block-start: 1px solid var(--border);
  margin-block-start: var(--space-8);
}
.site-footer__inner {
  max-inline-size: var(--container);
  margin-inline: auto;
  padding: var(--space-6) var(--container-pad);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  color: var(--text-subtle);
  font-size: 0.85rem;
}
.site-footer__links { display: flex; gap: var(--space-4); margin-inline-start: auto; flex-wrap: wrap; }
.site-footer__links a:hover { color: var(--text); }

/* ----------------------------------------------------------- 6. auth shell */

.auth-shell {
  min-block-size: 100vh;
  min-block-size: 100dvh;
  display: grid;
  place-items: center;
  padding: var(--space-5);
}
.auth-card {
  inline-size: min(480px, 100%);
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  display: grid;
  gap: var(--space-5);
}
.auth-card__head { display: grid; gap: var(--space-2); justify-items: center; text-align: center; }
.auth-card__head p { color: var(--text-muted); font-size: 0.9rem; }

.tabs {
  display: grid;
  grid-auto-flow: column;
  gap: var(--space-1);
  padding: var(--space-1);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.tabs [role="tab"] {
  padding: var(--space-2) var(--space-3);
  border: 0;
  border-radius: var(--radius-xs);
  background: transparent;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}
.tabs [role="tab"]:hover { color: var(--text); }
.tabs [role="tab"][aria-selected="true"] { background: var(--brand); color: var(--on-brand); }

.auth-form { display: grid; gap: var(--space-4); }
.auth-form[hidden] { display: none; }
.auth-switch { text-align: center; font-size: 0.88rem; color: var(--text-muted); }
.auth-switch button {
  background: none;
  border: 0;
  padding: 0;
  color: var(--orange);
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.auth-footnote {
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-subtle);
  border-block-start: 1px solid var(--border);
  padding-block-start: var(--space-4);
}

/* ------------------------------------------------------------ 7. app shell */

.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  grid-template-rows: var(--header-h) minmax(0, 1fr);
  grid-template-areas: "sidebar header" "sidebar main";
  block-size: 100vh;
  block-size: 100dvh;
}

.app-header {
  grid-area: header;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-inline: var(--space-5);
  border-inline: 0;
  border-block-start: 0;
  border-radius: 0;
  z-index: var(--z-sticky);
}
.app-header__spacer { margin-inline-start: auto; }

.app-sidebar {
  grid-area: sidebar;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-3);
  border-block: 0;
  border-inline-start: 0;
  border-radius: 0;
  overflow-y: auto;
  z-index: var(--z-sticky);
}
.app-sidebar__brand { padding: var(--space-2) var(--space-3) var(--space-4); }
.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-weight: 550;
  font-size: 0.92rem;
  cursor: pointer;
  border: 1px solid transparent;
  background: none;
  inline-size: 100%;
  text-align: start;
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}
.nav-item:hover { background: var(--surface-2); color: var(--text); }
.nav-item[aria-current="page"] {
  background: linear-gradient(var(--glass-tint), var(--glass-tint));
  border-color: rgb(255 140 43 / 0.22);
  color: var(--text);
}
.nav-item svg { inline-size: 19px; block-size: 19px; flex: none; }

.app-main {
  grid-area: main;
  overflow-y: auto;
  min-block-size: 0;
  padding: var(--space-6) var(--space-5) var(--space-8);
}
.app-main__inner { max-inline-size: 940px; margin-inline: auto; display: grid; gap: var(--space-6); }

.page-head { display: grid; gap: var(--space-2); }
.page-head p { color: var(--text-muted); }

/* Quick stats cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-3);
}
.stat-card {
  padding: var(--space-4);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: grid;
  gap: 3px;
  color: inherit;
  font: inherit;
  text-align: start;
  transition: all var(--dur-fast) var(--ease-out);
}
.stat-card:hover {
  border-color: var(--border-strong);
  background: var(--surface-2);
}
.stat-card--action {
  cursor: pointer;
  border-color: rgb(255 140 43 / 0.25);
  background: linear-gradient(135deg, rgb(255 59 48 / 0.08), rgb(255 200 43 / 0.06));
}
.stat-card--action:hover {
  border-color: var(--orange);
  background: linear-gradient(135deg, rgb(255 59 48 / 0.14), rgb(255 200 43 / 0.12));
  transform: translateY(-2px);
  box-shadow: var(--glow);
}
.stat-card__val {
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 1.2;
}
.stat-card__label {
  font-size: 0.8rem;
  font-weight: 550;
  color: var(--text-muted);
}

.meeting-list { display: grid; gap: var(--space-3); }

.meeting-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all var(--dur-fast) var(--ease-out);
}
.meeting-row:hover {
  border-color: var(--border-strong);
  background: var(--surface-2);
  transform: translateY(-1px);
  box-shadow: var(--shadow-2);
}
.meeting-row__icon {
  display: grid;
  place-items: center;
  inline-size: 44px;
  block-size: 44px;
  border-radius: var(--radius-sm);
  background: var(--surface-3);
  border: 1px solid var(--border);
  color: var(--orange);
}
.meeting-row__body { min-inline-size: 0; display: grid; gap: 4px; }
.meeting-row__title {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.meeting-row__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.82rem;
  color: var(--text-subtle);
}
.meeting-row__code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  background: rgb(255 140 43 / 0.08);
  border: 1px solid rgb(255 140 43 / 0.22);
  padding: 2px 8px;
  border-radius: var(--radius-xs);
  color: var(--orange);
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-out);
}
.meeting-row__code:hover {
  background: rgb(255 140 43 / 0.2);
  border-color: var(--orange);
  color: #fff;
}
.meeting-row__actions { display: flex; gap: var(--space-2); }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-md);
}

/* ---------------------------------------------------------- 8. media shell */
/* The call canvas fills the viewport; all chrome floats over it as overlays. */

.room {
  block-size: 100vh;
  block-size: 100dvh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 0;
  overflow: hidden;
  background: #080605;
  transition: grid-template-columns var(--dur-base) var(--ease-out);
}
.room[data-panel="open"] { grid-template-columns: minmax(0, 1fr) 360px; }

.room__stage {
  position: relative;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  min-inline-size: 0;
  overflow: hidden;
}

/* Top chrome --------------------------------------------------------------- */

.room__topbar {
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: var(--z-sticky);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 0;
  border-radius: 0;
  opacity: 0;
  transform: translateY(-100%);
  transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}
.room[data-chrome="visible"] .room__topbar,
.room__topbar:focus-within { opacity: 1; transform: none; }

.room__title { display: grid; gap: 2px; min-inline-size: 0; }
.room__title strong { font-size: 0.96rem; font-weight: 650; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.room__title span {
  font-size: 0.78rem;
  color: var(--orange);
  font-family: var(--font-mono);
  background: rgb(255 140 43 / 0.1);
  padding: 1px 7px;
  border-radius: var(--radius-xs);
  display: inline-block;
  inline-size: fit-content;
}
.room__topbar-actions { margin-inline-start: auto; display: flex; align-items: center; gap: var(--space-2); }

/* Video grid --------------------------------------------------------------- */

.room__grid {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-3);
  min-block-size: 0;
  overflow: hidden;
  align-content: center;
  justify-content: center;
  /* data-count drives the column count; see the rules below. */
}
.room__grid[data-count="1"] { grid-template-columns: minmax(0, 1fr); }
.room__grid[data-count="2"] { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.room__grid[data-count="3"],
.room__grid[data-count="4"] { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.room__grid[data-count="5"],
.room__grid[data-count="6"] { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.room__grid[data-count="7"],
.room__grid[data-count="8"],
.room__grid[data-count="9"] { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.room__grid[data-count="1"] .tile { aspect-ratio: auto; block-size: 100%; }
.room__grid:not([data-count="1"]) .tile { aspect-ratio: 16 / 10; }

.tile {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #0d0908;
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  min-block-size: 0;
  min-inline-size: 0;
  isolation: isolate;
  transition: all var(--dur-fast) var(--ease-out);
}
.tile--speaking {
  border-color: var(--orange) !important;
  box-shadow: 0 0 0 2px var(--orange), 0 0 24px rgb(255 140 43 / 0.45);
}

/* Spotlight: the pinned tile takes the stage, the rest become a filmstrip.
   Flexbox is the right tool here — the column count is no longer uniform. */
.room__grid[data-pinned="true"] {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
}
.room__grid[data-pinned="true"] .tile--pinned {
  flex: 1 0 100%;
  block-size: 70%;
  aspect-ratio: auto;
}
.room__grid[data-pinned="true"] .tile:not(.tile--pinned) {
  flex: 0 0 168px;
  aspect-ratio: 16 / 10;
}

.tile video {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  background: #000;
}
.tile--mirror video { transform: scaleX(-1); }
.tile--screen video { object-fit: contain; background: #050403; visibility: visible; }
.tile[data-camera="off"] video { visibility: hidden; }
/* A screen share is visible even when the camera itself is off. */
.tile--screen[data-camera="off"] video { visibility: visible; }

.tile__fallback {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  background: radial-gradient(circle at center, rgb(255 106 43 / 0.12) 0%, transparent 68%), linear-gradient(160deg, #181210, #0c0806);
}
.tile[data-camera="on"] .tile__fallback { display: none; }
.tile--screen .tile__fallback { display: none; }
.tile__fallback .avatar {
  inline-size: 88px;
  block-size: 88px;
  font-size: 1.9rem;
  box-shadow: 0 8px 32px rgb(0 0 0 / 0.5), inset 0 1px 0 rgb(255 255 255 / 0.25);
  transition: transform var(--dur-fast) var(--ease-spring), box-shadow var(--dur-fast) var(--ease-out);
}
.tile--speaking .tile__fallback .avatar {
  transform: scale(1.08);
  box-shadow: 0 0 0 4px var(--orange), 0 0 32px rgb(255 140 43 / 0.6);
}
.tile__fallback-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
  text-shadow: 0 1px 3px rgb(0 0 0 / 0.8);
}

.tile__label {
  position: absolute;
  inset-block-end: var(--space-3);
  inset-inline-start: var(--space-3);
  z-index: var(--z-raised);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 4px 10px 4px 8px;
  border-radius: var(--radius-pill);
  background: rgb(8 6 5 / 0.78);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  font-size: 0.82rem;
  font-weight: 600;
  max-inline-size: calc(100% - 24px);
  box-shadow: 0 2px 8px rgb(0 0 0 / 0.4);
}
.tile__label .avatar { inline-size: 20px; block-size: 20px; font-size: 0.62rem; }
.tile__label span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tile__label svg { inline-size: 14px; block-size: 14px; color: var(--text-muted); flex: none; }
.tile__label svg.is-off { color: #ff8f8f; }

.tile__hand-tag {
  display: inline-flex;
  align-items: center;
  font-size: 0.95rem;
  animation: wave 1s ease-in-out infinite alternate;
}
@keyframes wave {
  from { transform: translateY(0) rotate(0deg); }
  to { transform: translateY(-2px) rotate(8deg); }
}

.tile__pin {
  position: absolute;
  inset-block-start: var(--space-2);
  inset-inline-start: var(--space-2);
  z-index: var(--z-raised);
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-out);
}
.tile:hover .tile__pin,
.tile__pin:focus-visible { opacity: 1; }
.tile__pin[aria-pressed="true"] { opacity: 1; }

.tile__conn {
  position: absolute;
  inset-block-start: var(--space-2);
  inset-inline-start: var(--space-2);
  z-index: var(--z-raised);
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  color: var(--text-muted);
}
.tile__conn i { inline-size: 5px; block-size: 9px; border-radius: 2px; background: currentColor; opacity: 0.3; }
.tile__conn[data-quality="good"] { color: var(--success); }
.tile__conn[data-quality="fair"] { color: var(--yellow); }
.tile__conn[data-quality="poor"] { color: var(--danger); }
.tile__conn[data-quality="good"] i:nth-child(-n+3),
.tile__conn[data-quality="fair"] i:nth-child(-n+2),
.tile__conn[data-quality="poor"] i:nth-child(-n+1) { opacity: 1; }

/* Bottom chrome ------------------------------------------------------------ */

.room__controls {
  position: absolute;
  inset-block-end: var(--space-4);
  inset-inline: 0;
  margin-inline: auto;
  inline-size: fit-content;
  z-index: var(--z-drawer);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 10px;
  border-radius: var(--radius-pill);
  background: rgb(18 13 11 / 0.88);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  backdrop-filter: blur(24px) saturate(160%);
  border: 1px solid rgb(255 255 255 / 0.12);
  box-shadow: 0 16px 40px rgb(0 0 0 / 0.65), inset 0 1px 0 rgb(255 255 255 / 0.15);
  opacity: 0;
  transform: translateY(calc(100% + var(--space-4)));
  transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}
.room[data-chrome="visible"] .room__controls,
.room__controls:focus-within { opacity: 1; transform: none; }

.room__controls-divider {
  inline-size: 1px;
  block-size: 26px;
  background: var(--border-strong);
  margin-inline: var(--space-1);
}

/* Reactions ---------------------------------------------------------------- */

.reaction-layer {
  position: absolute;
  inset: 0;
  z-index: var(--z-popover);
  pointer-events: none;
  overflow: hidden;
}
.reaction-float {
  position: absolute;
  inset-block-end: 96px;
  font-size: 2rem;
  animation: float-up 3s var(--ease-out) forwards;
  filter: drop-shadow(0 4px 12px rgb(0 0 0 / 0.5));
}
@keyframes float-up {
  0% { opacity: 0; transform: translateY(0) scale(0.6); }
  15% { opacity: 1; transform: translateY(-20px) scale(1.1); }
  100% { opacity: 0; transform: translateY(-320px) scale(0.9); }
}

.reaction-bar { display: flex; gap: var(--space-1); }
.reaction-bar button {
  inline-size: 40px;
  block-size: 40px;
  display: grid;
  place-items: center;
  font-size: 1.15rem;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out), transform var(--dur-instant) var(--ease-out);
}
.reaction-bar button:hover { background: var(--surface-4); transform: scale(1.16); }
.reaction-bar button:active { transform: scale(0.94); }

/* Side panel --------------------------------------------------------------- */

.room__panel {
  display: flex;
  flex-direction: column;
  min-inline-size: 0;
  overflow: hidden;
  border-block: 0;
  border-inline-end: 0;
  border-radius: 0;
  z-index: var(--z-sticky);
}
.room__panel[hidden] { display: none; }

/* Mobile dimmer behind the sliding panel; the button closes it. */
.room__panel-scrim {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-drawer) - 1);
  padding: 0;
  border: 0;
  background: rgb(8 6 5 / 0.5);
  cursor: pointer;
}

.panel-tabs {
  display: flex;
  gap: var(--space-1);
  padding: var(--space-3);
  border-block-end: 1px solid var(--border);
}
.panel-tabs button {
  flex: 1;
  padding: var(--space-2);
  border: 0;
  border-radius: var(--radius-xs);
  background: transparent;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
}
.panel-tabs button[aria-selected="true"] { background: var(--surface-3); color: var(--text); }

/* Only the inner list scrolls; nesting a scrollable chat log inside a
   scrollable panel body makes touch gestures feel sticky on phones. */
.panel-body { flex: 1; min-block-size: 0; overflow: hidden; }
.panel-body[hidden] { display: none; }

/* Chat */
.chat { display: flex; flex-direction: column; block-size: 100%; min-block-size: 0; }
.chat__log {
  flex: 1;
  min-block-size: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-y pinch-zoom;
  padding: var(--space-3);
  display: grid;
  gap: var(--space-3);
  align-content: start;
}
.chat__empty { color: var(--text-subtle); font-size: 0.85rem; text-align: center; padding: var(--space-6) var(--space-3); }

.msg {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  padding: 6px var(--space-3);
  border-radius: var(--radius-sm);
  transition: background var(--dur-fast) var(--ease-out);
}
.msg:hover { background: rgb(255 255 255 / 0.03); }
.msg--self {
  background: rgb(255 106 43 / 0.06);
  border: 1px solid rgb(255 106 43 / 0.14);
}
.msg__body { min-inline-size: 0; display: grid; gap: 2px; }
.msg__head { display: flex; align-items: baseline; gap: var(--space-2); }
.msg__name { font-weight: 640; font-size: 0.86rem; }
.msg__time { font-size: 0.72rem; color: var(--text-subtle); }
.msg__text { font-size: 0.9rem; overflow-wrap: anywhere; white-space: pre-wrap; }

.chat__form {
  display: flex;
  flex: 0 0 auto;
  gap: var(--space-2);
  padding: var(--space-3);
  border-block-start: 1px solid var(--border);
}
.chat__form .input { min-block-size: 42px; }

/* Participants */
.people {
  block-size: 100%;
  min-block-size: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-y pinch-zoom;
  padding: var(--space-3);
  display: grid;
  gap: var(--space-1);
  align-content: start;
}
.person {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2);
  border-radius: var(--radius-sm);
}
.person:hover { background: var(--surface-2); }
.person__name { font-size: 0.88rem; font-weight: 550; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.person__meta { font-size: 0.72rem; color: var(--text-muted); }
.person__actions { display: flex; gap: 2px; }
.person__actions button {
  inline-size: 32px;
  block-size: 32px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: var(--radius-xs);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
}
.person__actions button:hover { background: var(--surface-4); color: var(--text); }
.person__actions button svg { inline-size: 16px; block-size: 16px; }

/* --------------------------------------------------------------- 9. lobby */

.lobby {
  min-block-size: 100vh;
  min-block-size: 100dvh;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}
.lobby__body {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(320px, 0.9fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
  max-inline-size: 1100px;
  margin-inline: auto;
  padding: var(--space-6) var(--container-pad) var(--space-8);
  inline-size: 100%;
}
.lobby__preview {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface-1);
  border: 1px solid var(--border);
  aspect-ratio: 16 / 10;
  display: grid;
  place-items: center;
}
.lobby__preview video { inline-size: 100%; block-size: 100%; object-fit: cover; pointer-events: none; }
.lobby__preview--mirror video { transform: scaleX(-1); }
.lobby__preview-actions {
  position: absolute;
  inset-block-end: var(--space-4);
  inset-inline: 0;
  margin-inline: auto;
  inline-size: fit-content;
  display: flex;
  gap: var(--space-2);
  padding: var(--space-2);
  border-radius: var(--radius-pill);
}
.lobby__vu {
  position: absolute;
  inset-block-start: var(--space-3);
  inset-inline-start: var(--space-3);
  inline-size: 110px;
  block-size: 6px;
  background: rgb(0 0 0 / 0.55);
  border-radius: var(--radius-pill);
  overflow: hidden;
  border: 1px solid rgb(255 255 255 / 0.15);
  box-shadow: 0 2px 8px rgb(0 0 0 / 0.4);
}
.lobby__vu-bar {
  display: block;
  block-size: 100%;
  inline-size: 0%;
  background: linear-gradient(90deg, var(--success) 0%, var(--yellow) 70%, var(--red) 100%);
  border-radius: var(--radius-pill);
  transition: inline-size 60ms linear;
}
.lobby__side { display: grid; gap: var(--space-5); align-content: center; }
.lobby__side h1 { font-size: clamp(1.5rem, 3vw, 2rem); }
.lobby__code {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  color: var(--orange);
}
.lobby__settings { display: grid; gap: var(--space-4); }
.lobby__cta { display: grid; gap: var(--space-2); }

.select {
  inline-size: 100%;
  min-block-size: 44px;
  padding: 0 var(--space-3);
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  cursor: pointer;
}
.select:focus { outline: none; border-color: var(--orange); box-shadow: 0 0 0 3px rgb(255 140 43 / 0.2); }

/* --------------------------------------------------------------- 10. modal */

.scrim {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: grid;
  place-items: center;
  padding: var(--space-5);
  background: rgb(8 6 5 / 0.62);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
  animation: fade-in var(--dur-fast) var(--ease-out);
}
.scrim[hidden] { display: none; }

.modal {
  inline-size: min(460px, 100%);
  padding: var(--space-5);
  border-radius: var(--radius-xl);
  display: grid;
  gap: var(--space-4);
  animation: modal-in var(--dur-base) var(--ease-spring);
}
.modal h2 { font-size: 1.2rem; }
.modal p { color: var(--text-muted); font-size: 0.92rem; }
.modal__actions { display: flex; justify-content: flex-end; gap: var(--space-2); }

@keyframes fade-in { from { opacity: 0; } }
@keyframes modal-in {
  from { opacity: 0; transform: translateY(12px) scale(0.97); }
  to { opacity: 1; transform: none; }
}

/* Menu --------------------------------------------------------------------- */

.menu-wrap { position: relative; }
.menu {
  position: absolute;
  inset-block-start: calc(100% + var(--space-2));
  inset-inline-end: 0;
  z-index: var(--z-popover);
  min-inline-size: 220px;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  display: grid;
  gap: 2px;
  animation: modal-in var(--dur-fast) var(--ease-out);
}
.menu[hidden] { display: none; }
.menu button,
.menu a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border: 0;
  border-radius: var(--radius-xs);
  background: none;
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 550;
  text-align: start;
  cursor: pointer;
  inline-size: 100%;
}
.menu button:hover, .menu a:hover { background: var(--surface-3); }
.menu button svg, .menu a svg { inline-size: 17px; block-size: 17px; color: var(--text-muted); flex: none; }
.menu__sep { block-size: 1px; background: var(--border); margin: var(--space-1) 0; }
.menu .is-danger { color: #ff9a9a; }
.menu .is-danger svg { color: currentColor; }
.menu__head { padding: var(--space-2) var(--space-3); display: grid; gap: 1px; }
.menu__head strong { font-size: 0.9rem; }
.menu__head span { font-size: 0.78rem; color: var(--text-subtle); }

/* ---------------------------------------------------------- 11. responsive */

@media (max-width: 1023px) {
  .hero { grid-template-columns: minmax(0, 1fr); }
  .hero__art { order: -1; }
  .lobby__body { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 900px) {
  .room[data-panel="open"] { grid-template-columns: minmax(0, 1fr) 0; }
  .room__panel {
    position: fixed;
    inset-block: 0;
    inset-inline-end: 0;
    inline-size: min(360px, 100vw);
    z-index: var(--z-drawer);
    transform: translateX(100%);
    transition: transform var(--dur-base) var(--ease-out);
  }
  .room[data-panel="open"] .room__panel { transform: none; }
}

@media (max-width: 767px) {
  .app-shell {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "header" "main";
  }
  .app-sidebar {
    position: fixed;
    inset-block: 0;
    inset-inline-start: 0;
    inline-size: var(--sidebar-w);
    z-index: var(--z-drawer);
    transform: translateX(-100%);
    transition: transform var(--dur-base) var(--ease-out);
  }
  .app-sidebar[data-open="true"] { transform: none; }
  .sidebar-scrim {
    position: fixed;
    inset: 0;
    /* Below the 100-level sidebar/header, above the page content. */
    z-index: calc(var(--z-sticky) - 1);
    padding: 0;
    border: 0;
    background: rgb(8 6 5 / 0.5);
    cursor: pointer;
  }

  .room__grid[data-count="2"],
  .room__grid[data-count="3"],
  .room__grid[data-count="4"],
  .room__grid[data-count="5"],
  .room__grid[data-count="6"],
  .room__grid[data-count="7"],
  .room__grid[data-count="8"],
  .room__grid[data-count="9"] { grid-template-columns: minmax(0, 1fr); }
  .room__grid:not([data-count="1"]) .tile { aspect-ratio: 16 / 11; }

  .room__controls {
    inset-block-end: var(--space-3);
    inset-inline: var(--space-3);
    inline-size: auto;
    justify-content: space-between;
    overflow-x: auto;
  }
  .room__controls .icon-btn { inline-size: 40px; block-size: 40px; }
  .room__controls-divider { display: none; }

  .meeting-row { grid-template-columns: auto minmax(0, 1fr); }
  .meeting-row__actions { grid-column: 1 / -1; }
  .meeting-row__actions .btn { flex: 1; }

  /* Two blurred surfaces is the practical mobile ceiling — drop the header's. */
  .app-header { background: var(--surface-1); -webkit-backdrop-filter: none; backdrop-filter: none; }
  .site-header { background: var(--surface-1); -webkit-backdrop-filter: none; backdrop-filter: none; }

  .section { padding-block: var(--space-7); }
}

@media (max-width: 560px) {
  .site-nav { display: none; }
  .auth-card { padding: var(--space-5); }
}

/* --------------------------------------------------------------- 12. motion */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reaction-float { display: none; }
}

/* Print — nothing here is meant for paper, but do not explode. */
@media print {
  .site-header, .site-footer, .room__controls, .room__panel { display: none !important; }
}

/* ==========================================================================
   13. Responsive frontend refresh
   The call canvas is a single flexible stage: an unpinned grid, or one
   pinned tile above a horizontal filmstrip (Google Meet behaviour). Every
   size below 900px is treated as a touch layout, with fewer controls and a
   full-width side panel.
   ========================================================================== */

:root {
  --room-pad: clamp(6px, 1.1vw, 12px);
  --room-controls-space: calc(78px + env(safe-area-inset-bottom, 0px));
  --panel-width: clamp(300px, 27vw, 380px);
  --z-panel: 220;
  --z-panel-scrim: 219;
}

/* ----------------------------------------------------------- room shell -- */

.room {
  grid-template-columns: minmax(0, 1fr) 0;
  min-block-size: 0;
  /* A transition on a grid track animated to a clamp()/var() width can remain
     stuck at 0 in Chromium; the panel slide is handled by transform on mobile. */
  transition: none;
}
.room[data-panel="open"] {
  grid-template-columns: minmax(0, 1fr) var(--panel-width);
}
.room__stage {
  grid-template-rows: minmax(0, 1fr);
}

.room__grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-block-size: 0;
  min-inline-size: 0;
  padding: var(--room-pad);
  padding-block-end: var(--room-controls-space);
  overflow: hidden;
  align-content: stretch;
  align-items: stretch;
  justify-content: flex-start;
}

.room__tiles {
  display: grid;
  flex: 1 1 auto;
  gap: var(--space-2);
  min-block-size: 0;
  min-inline-size: 0;
  grid-auto-rows: minmax(0, 1fr);
  align-content: stretch;
}

/* The number of cells, not a fixed aspect ratio, decides the rows. This keeps
   the grid inside the viewport on short laptops and very tall phones alike. */
.room__grid[data-count="1"] .room__tiles { grid-template-columns: minmax(0, 1fr); }
.room__grid[data-count="2"] .room__tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.room__grid[data-count="3"] .room__tiles,
.room__grid[data-count="4"] .room__tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.room__grid[data-count="5"] .room__tiles,
.room__grid[data-count="6"] .room__tiles,
.room__grid[data-count="7"] .room__tiles,
.room__grid[data-count="8"] .room__tiles,
.room__grid[data-count="9"] .room__tiles { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.room__grid .room__tiles .tile {
  aspect-ratio: auto;
  inline-size: auto;
  block-size: auto;
}

/* Tiles deliberately fill their cells (like screen sharing / spotlight
   layouts) instead of forcing a 16:9 box that would leave large bars on a
   portrait phone or a very wide monitor. Screen shares switch to contain. */

/* Pinned stage + filmstrip ------------------------------------------------ */

.room__grid[data-pinned="true"] {
  display: flex;
  flex-direction: column;
  flex-wrap: nowrap;
  align-content: stretch;
}
.room__grid[data-pinned="true"] .room__tiles {
  display: block;
  flex: 1 1 auto;
  min-block-size: 0;
  overflow: hidden;
}
.room__grid[data-pinned="true"] .room__tiles > .tile,
.room__grid[data-pinned="true"] .room__tiles > .tile--pinned {
  inline-size: 100%;
  block-size: 100%;
  min-block-size: 0;
  aspect-ratio: auto;
}

.room__filmstrip {
  display: flex;
  flex: 0 0 auto;
  gap: var(--space-2);
  block-size: clamp(76px, 12vh, 126px);
  min-block-size: 0;
  padding-block: 2px;
  overflow-x: auto;
  overflow-y: hidden;
  overscroll-behavior-x: contain;
  scrollbar-width: thin;
  scroll-snap-type: x proximity;
}
.room__filmstrip[hidden] { display: none; }
.room__grid[data-pinned="true"] .room__filmstrip .tile {
  flex: 0 0 auto;
  inline-size: auto;
  block-size: 100%;
  min-inline-size: 96px;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-md);
  scroll-snap-align: start;
}

/* Tiles ------------------------------------------------------------------- */

.tile {
  min-inline-size: 0;
  min-block-size: 0;
  border-radius: var(--radius-lg);
}
.tile--pinned {
  border-color: rgb(255 140 43 / 0.38);
}
.tile video {
  min-inline-size: 0;
  min-block-size: 0;
}
.tile__fallback .avatar {
  inline-size: clamp(40px, 8vmin, 88px);
  block-size: clamp(40px, 8vmin, 88px);
  font-size: clamp(0.9rem, 2vmin, 1.9rem);
}
.tile__fallback-name {
  max-inline-size: calc(100% - 20px);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: clamp(0.72rem, 1.6vmin, 1rem);
  text-align: center;
}
.tile__label {
  max-inline-size: calc(100% - 16px);
  gap: 5px;
  padding: 3px 9px;
  font-size: clamp(0.68rem, 1.3vmin, 0.82rem);
}
.tile__label .tile__pin-tag {
  color: var(--yellow);
  font-size: 0.72em;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.tile__pin-tag { flex: none; }

.tile__pin {
  inline-size: 34px;
  block-size: 34px;
  padding: 0;
  border-color: rgb(255 255 255 / 0.16);
  background: rgb(8 6 5 / 0.68);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  opacity: 0;
  pointer-events: none;
}
.tile__pin svg { inline-size: 16px; block-size: 16px; }
.tile__pin:hover { background: rgb(40 30 25 / 0.92); }
.tile__pin[aria-pressed="true"],
.tile__pin--active {
  opacity: 1;
  pointer-events: auto;
  color: var(--on-brand) !important;
  background: var(--brand) !important;
  border-color: transparent !important;
  box-shadow: 0 0 16px rgb(255 106 43 / 0.4);
}
.tile:hover .tile__pin,
.tile__pin:focus-visible { opacity: 1; pointer-events: auto; }
.tile__conn {
  inset-block-start: var(--space-2);
  inset-inline-start: auto;
  inset-inline-end: var(--space-2);
}

/* Filmstrip thumbnails are deliberately compact. */
.room__filmstrip .tile__fallback { gap: 4px; }
.room__filmstrip .tile__fallback .avatar {
  inline-size: 34px;
  block-size: 34px;
  font-size: 0.76rem;
  box-shadow: none;
}
.room__filmstrip .tile__fallback-name { font-size: 0.7rem; }
.room__filmstrip .tile__label {
  inset-block-end: 5px;
  inset-inline-start: 5px;
  padding: 2px 7px;
  font-size: 0.68rem;
  max-inline-size: calc(100% - 10px);
}
.room__filmstrip .tile__label svg { inline-size: 12px; block-size: 12px; }
.room__filmstrip .tile__conn { display: none; }
.room__filmstrip .tile__pin {
  inset-block-start: 4px;
  inset-inline-start: 4px;
  inline-size: 27px;
  block-size: 27px;
}
.room__filmstrip .tile__pin svg { inline-size: 13px; block-size: 13px; }

/* Touch screens cannot hover, so the pin action must be permanently visible. */
@media (hover: none) {
  .tile__pin { opacity: 1; pointer-events: auto; }
}

/* Controls ----------------------------------------------------------------- */

.room__controls {
  inset-block-end: calc(var(--space-3) + env(safe-area-inset-bottom, 0px));
  inset-inline: 0;
  inline-size: fit-content;
  max-inline-size: calc(100vw - 16px);
  gap: var(--space-2);
  padding: 6px 10px;
  overflow: visible;
}
.room__controls .icon-btn { flex: 0 0 auto; }

/* Menus live in the bottom bar, so they must open upwards. The old rules
   opened them below the button, off the bottom of the screen. */
.room__controls .menu {
  inset-block-start: auto;
  inset-block-end: calc(100% + var(--space-2));
  max-block-size: min(60dvh, 430px);
  max-inline-size: min(300px, calc(100vw - 24px));
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}
.room__controls .menu__sep { flex: none; }

/* Top bar ------------------------------------------------------------------ */

.room__topbar {
  gap: var(--space-2);
  min-inline-size: 0;
  padding-block: calc(var(--space-2) + env(safe-area-inset-top, 0px)) var(--space-2);
}
.room__title { flex: 1 1 auto; min-inline-size: 0; }
.room__title strong { max-inline-size: 100%; }
.room__title span { max-inline-size: 112px; }
.room__topbar-actions { flex: 0 0 auto; min-inline-size: 0; }
#copy-invite {
  min-block-size: 36px;
  padding-inline: var(--space-3);
}
#copy-invite svg { inline-size: 17px; block-size: 17px; }

/* Side panel --------------------------------------------------------------- */

.room__panel {
  z-index: var(--z-panel);
  max-block-size: 100vh;
  max-block-size: 100dvh;
}
.room__panel-scrim { z-index: var(--z-panel-scrim); }

.panel-tabs {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: calc(var(--space-2) + env(safe-area-inset-top, 0px)) var(--space-3) var(--space-2);
  position: sticky;
  inset-block-start: 0;
  z-index: 2;
  background: var(--surface-1);
}
.panel-tabs__list {
  display: flex;
  flex: 1 1 auto;
  gap: var(--space-1);
  min-inline-size: 0;
}
.panel-tabs__list [role="tab"] { flex: 1 1 0; min-inline-size: 0; }
/* Specificity note: the original `.panel-tabs button` rule gives every button
   `flex: 1`; the close button must opt out with a stronger selector. */
.panel-tabs .panel-close {
  display: grid;
  place-items: center;
  flex: 0 0 40px;
  inline-size: 40px;
  min-inline-size: 40px;
  block-size: 40px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-xs);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
}
.panel-tabs .panel-close:hover { background: var(--surface-3); color: var(--text); }
.panel-tabs .panel-close svg { inline-size: 18px; block-size: 18px; }
.chat__form { padding-block-end: calc(var(--space-3) + env(safe-area-inset-bottom, 0px)); }
.chat__form .input { flex: 1 1 auto; min-inline-size: 0; }
.person__body { min-inline-size: 0; }
.person--pinned {
  background: rgb(255 140 43 / 0.07);
  box-shadow: inset 2px 0 0 var(--orange);
}
.people { padding-block-end: calc(var(--space-3) + env(safe-area-inset-bottom, 0px)); }
.person__actions button[aria-pressed="true"] {
  color: var(--on-brand);
  background: var(--brand);
}
.person__actions button[aria-pressed="true"]:hover { filter: brightness(1.08); }

/* Toasts sit above the control bar while a call is open. */
body.in-room .toast-stack {
  inset-block-end: calc(88px + env(safe-area-inset-bottom, 0px));
}
body.in-lobby .toast-stack {
  inset-block-end: calc(100px + env(safe-area-inset-bottom, 0px));
}

/* --------------------------------------------------------------- lobby --- */

.lobby__body {
  min-block-size: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
}
.lobby__preview-actions {
  inset-block-end: calc(var(--space-3) + env(safe-area-inset-bottom, 0px));
}

/* --------------------------------------------------------------- modal --- */

.scrim {
  padding-block: max(var(--space-4), env(safe-area-inset-top, 0px)) max(var(--space-4), env(safe-area-inset-bottom, 0px));
  overflow-y: auto;
}
.modal {
  max-block-size: 100vh;
  max-block-size: calc(100dvh - 32px);
  overflow-y: auto;
  overscroll-behavior: contain;
}
.modal__actions { flex-wrap: wrap; }

/* On phones the side panel is a full-height sheet; the close button and the
   scrim are the two reliable ways out. */
@media (max-width: 1024px) {
  /* The panel is an overlay here, so it must not reserve a grid column.
     Its height follows the visual viewport so the chat form stays above the
     on-screen keyboard on iOS/Android. This covers large phones in landscape
     (up to ~930px), not just portrait tablets. */
  .room[data-panel="open"] { grid-template-columns: minmax(0, 1fr) 0; }
  .room__panel {
    position: fixed;
    inset-block-start: 0;
    inset-block-end: auto;
    inset-inline-end: 0;
    z-index: var(--z-panel);
    inline-size: min(400px, 100vw);
    block-size: 100vh;
    block-size: var(--visual-vh, 100dvh);
    max-block-size: 100vh;
    max-block-size: var(--visual-vh, 100dvh);
    /* A large blur over live video is costly while scrolling chat on a phone. */
    background: var(--surface-1);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    transform: translateX(100%);
    transition: transform var(--dur-base) var(--ease-out);
  }
  .room[data-panel="open"] .room__panel { transform: none; }
}
@media (max-width: 480px) {
  .room__panel { inline-size: 100vw; }
}

/* Respect the notch/status bar on phones using viewport-fit=cover. */
.site-header {
  block-size: calc(var(--header-h) + env(safe-area-inset-top, 0px));
  padding-block-start: env(safe-area-inset-top, 0px);
}

/* Touch scrolling: contain the gesture inside the surface the user is
   actually scrolling, and stop the browser's pull-to-refresh from firing
   while reading chat/people/lobby content. */
html, body { overscroll-behavior-y: none; }
.app-main,
.app-sidebar,
.lobby__body {
  overscroll-behavior-y: contain;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-y pinch-zoom;
}
.modal,
.scrim {
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}
.room__filmstrip {
  -webkit-overflow-scrolling: touch;
  touch-action: pan-x pinch-zoom;
}
button, a, .icon-btn, .tile__pin {
  touch-action: manipulation;
}

/* Phones/tablets: let the lobby scroll as one normal document instead of a
   nested scroll container. This guarantees the Join action and device pickers
   can always be reached with a normal vertical swipe. */
@media (max-width: 1024px) {
  .lobby { display: block; }
  .lobby__body {
    grid-template-columns: minmax(0, 1fr);
    align-items: stretch;
    align-content: start;
    min-block-size: 0;
    block-size: auto;
    padding-block-end: calc(150px + env(safe-area-inset-bottom, 0px));
    overflow: visible;
  }
  .lobby__preview { max-block-size: 45vh; }
  .lobby__cta {
    position: fixed;
    inset-inline: 0;
    inset-block-end: 0;
    z-index: 50;
    padding: 10px 16px calc(10px + env(safe-area-inset-bottom, 0px));
    background: var(--surface-1);
    border-block-start: 1px solid var(--border);
  }
  .lobby__cta .btn { inline-size: 100%; }
}

/* Tablets and phones in landscape get the dashboard drawer too, instead of a
   permanently open 264px sidebar. */
@media (max-width: 1024px) {
  .app-shell {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "header" "main";
  }
  .app-header { position: relative; }
  .app-header .menu-wrap { position: static; }
  #account-menu {
    position: absolute;
    inset-inline-start: auto;
    inset-inline-end: 12px;
    inset-block-start: calc(100% + 6px);
    inline-size: min(320px, calc(100vw - 24px));
    min-inline-size: 0;
    max-inline-size: none;
  }
  .app-sidebar {
    position: fixed;
    inset-block: 0;
    inset-inline-start: 0;
    inline-size: min(280px, 86vw);
    z-index: var(--z-drawer);
    padding-block: calc(var(--space-4) + env(safe-area-inset-top, 0px)) calc(var(--space-4) + env(safe-area-inset-bottom, 0px));
    transform: translateX(-100%);
    transition: transform var(--dur-base) var(--ease-out);
  }
  .app-sidebar[data-open="true"] { transform: none; }
  .sidebar-scrim {
    position: fixed;
    inset: 0;
    z-index: calc(var(--z-drawer) - 50);
    padding: 0;
    border: 0;
    background: rgb(8 6 5 / 0.5);
    cursor: pointer;
  }
  .menu button, .menu a { min-block-size: 40px; }
  .panel-tabs__list [role="tab"] { min-block-size: 44px; }
  .panel-tabs .panel-close {
    flex-basis: 44px;
    inline-size: 44px;
    min-inline-size: 44px;
    block-size: 44px;
  }
  .person__actions button { inline-size: 40px; block-size: 40px; }
}

/* ------------------------------------------------------ short laptops --- */

@media (max-height: 560px) and (orientation: landscape) {
  .room__grid {
    --room-pad: 6px;
    --room-controls-space: calc(56px + env(safe-area-inset-bottom, 0px));
  }
  .room__controls {
    inset-block-end: calc(6px + env(safe-area-inset-bottom, 0px));
    padding: 3px 6px;
  }
  .room__controls .icon-btn { inline-size: 36px; block-size: 36px; }
  .room__controls svg { inline-size: 17px; block-size: 17px; }
  .room__filmstrip { block-size: 62px; }
  .room__topbar { padding-block-start: calc(4px + env(safe-area-inset-top, 0px)); }
  .room__title strong { font-size: 0.86rem; }
  #room-code, .room__title span, #room-count { display: none; }
  .lobby__body { padding-block: var(--space-3); }
  .lobby__preview { max-block-size: 48vh; }
  .modal {
    max-block-size: 100vh;
    max-block-size: calc(100dvh - 16px);
  }
  .auth-shell { place-items: start center; padding-block: 12px; }
  .auth-card { padding: var(--space-4); }
}

/* ---------------------------------------------------------- phones ------ */

@media (max-width: 767px) {
  :root { --room-controls-space: calc(68px + env(safe-area-inset-bottom, 0px)); }

  .room__grid { padding: 8px; padding-block-end: var(--room-controls-space); }
  .room__tiles { gap: 6px; }
  .room__grid[data-count="2"] .room__tiles { grid-template-columns: minmax(0, 1fr); }
  .room__grid[data-count="3"] .room__tiles,
  .room__grid[data-count="4"] .room__tiles,
  .room__grid[data-count="5"] .room__tiles,
  .room__grid[data-count="6"] .room__tiles,
  .room__grid[data-count="7"] .room__tiles,
  .room__grid[data-count="8"] .room__tiles,
  .room__grid[data-count="9"] .room__tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .room__filmstrip { block-size: clamp(66px, 11vh, 96px); }
  .room__controls {
    inset-inline: 8px;
    inline-size: auto;
    max-inline-size: min(520px, calc(100vw - 16px));
    margin-inline: auto;
    justify-content: space-between;
    gap: 2px;
    padding: 4px 6px;
  }
  .room__controls .icon-btn { inline-size: 44px; block-size: 44px; }
  .room__controls svg { inline-size: 20px; block-size: 20px; }
  .room__controls-divider { display: none; }
  #ctl-screen, #ctl-hand, #react-wrap { display: none; }
  /* The More menu becomes a full-width sheet above the 6-button bar, so the
     six reaction emojis and long action labels never squeeze into a 300px
     popover. */
  .room__controls #more-wrap { position: static; }
  .room__controls #more-menu {
    position: absolute;
    inset-inline: 0;
    inset-block-end: calc(100% + 8px);
    inline-size: 100%;
    min-inline-size: 0;
    max-inline-size: none;
    max-block-size: min(68dvh, 560px);
    border-radius: var(--radius-lg);
    background: var(--surface-1);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
  /* Put screen/hand/reactions first so they are immediately visible without
     scrolling in the More sheet. */
  .room__controls #more-menu .more-mobile-actions {
    order: -1;
    padding-block-end: 4px;
    border-block-end: 1px solid var(--border);
    margin-block-end: 2px;
  }
  .room__controls #more-menu .more-mobile-actions > .menu__sep:first-child {
    display: none;
  }
  .room__controls #more-menu #more-screen-audio { order: -1; }

  .room__topbar { padding-inline: 10px; }
  .btn__label { display: none; }
  #copy-invite { min-inline-size: 36px; padding: 0 9px; }
  #room-code { max-inline-size: 90px; }
  .room__title strong { font-size: 0.92rem; }
  .room__title span { font-size: 0.72rem; }
  .badge--locked .badge__label { display: none; }

  .tile__pin { inline-size: 36px; block-size: 36px; }
  .room__filmstrip .tile__pin { inline-size: 30px; block-size: 30px; }
  .tile__label { font-size: 0.7rem; }
  body.in-room .toast-stack { inset-block-end: calc(76px + env(safe-area-inset-bottom, 0px)); }

  .lobby__body {
    align-items: stretch;
    padding: var(--space-4) var(--space-4) calc(150px + env(safe-area-inset-bottom, 0px));
    gap: var(--space-5);
    align-content: start;
  }
  .lobby__preview { max-block-size: 38vh; }
  .lobby__side { gap: var(--space-4); }
  .app-shell { grid-template-rows: calc(var(--header-h) + env(safe-area-inset-top, 0px)) minmax(0, 1fr); }
  .app-main { padding: var(--space-5) var(--space-4) calc(var(--space-8) + env(safe-area-inset-bottom, 0px)); }
  .app-header {
    padding-inline: var(--space-3);
    padding-block-start: env(safe-area-inset-top, 0px);
  }
  .app-sidebar {
    inline-size: min(280px, 86vw);
    padding-block: calc(var(--space-4) + env(safe-area-inset-top, 0px)) calc(var(--space-4) + env(safe-area-inset-bottom, 0px));
  }
  .sidebar-scrim { z-index: 150; }
  .app-header .badge--brand { display: none; }
  .stats-grid { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
  .meeting-row { grid-template-columns: auto minmax(0, 1fr); }
  .meeting-row__actions { grid-column: 1 / -1; flex-wrap: wrap; }
  .meeting-row__actions .btn { flex: 1 1 auto; }
  .meeting-row__actions .btn[data-act="delete"] { flex: 0 0 44px; }
  .toolbar { padding: var(--space-3); }
  .account-pill__name { display: none; }
  .account-pill { padding: 4px 8px 4px 4px; }

  .site-nav { display: none; }
  .site-header__inner { gap: var(--space-3); }
  .hero { gap: var(--space-5); padding-block: var(--space-7); }
  .site-footer__links { margin-inline-start: 0; }

  .auth-shell {
    place-items: start center;
    padding-block: max(var(--space-4), env(safe-area-inset-top, 0px)) max(var(--space-4), env(safe-area-inset-bottom, 0px));
  }
  .auth-card { padding: var(--space-5); }

  .scrim {
    align-items: start;
    padding: 12px;
    padding-block-start: max(12px, env(safe-area-inset-top, 0px));
  }
  .modal {
    inline-size: 100%;
    max-block-size: 100vh;
    max-block-size: calc(var(--visual-vh, 100dvh) - 24px);
  }
  .input, .select, .chat__form .input { font-size: 16px; }
  .menu { max-inline-size: calc(100vw - 24px); }
  .tabs [role="tab"] { min-block-size: 44px; }
}

/* Still comfortable at 360–420px, but the bar must not overflow. */
@media (max-width: 560px) {
  #room-code { display: none; }
  .room__topbar-actions { gap: 4px; }
  .room__topbar { padding-inline: 8px; }
  .room__grid { --room-controls-space: calc(68px + env(safe-area-inset-bottom, 0px)); }
  .room__filmstrip { block-size: 76px; }
  .tile__fallback .avatar { inline-size: 44px; block-size: 44px; }
  .lobby__preview { aspect-ratio: 4 / 3; max-block-size: 38vh; }
  .auth-card { padding: var(--space-4); border-radius: var(--radius-lg); }
  .site-header__actions .btn--ghost { display: none; }
  .hero__actions { inline-size: 100%; }
  .hero__actions .btn { flex: 1 1 auto; }
}

@media (max-width: 420px) {
  .room__controls { gap: 1px; padding: 3px 4px; }
  .room__grid { --room-controls-space: calc(68px + env(safe-area-inset-bottom, 0px)); }
  .room__filmstrip { block-size: 68px; }
  #room-count { display: none; }
  .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat-card { padding: var(--space-3); }
  .meeting-row { gap: var(--space-3); }
  .meeting-row__actions .btn { font-size: 0.84rem; padding-inline: var(--space-2); }
  .page-head h1 { font-size: clamp(1.5rem, 7vw, 2rem); }
  .app-main { padding-inline: var(--space-3); }
  .modal { padding: var(--space-4); }
}

/* Very wide monitors: a little more breathing room, still 3 columns for 9. */
@media (min-width: 1800px) {
  .room__grid { --room-pad: 16px; }
  .room__filmstrip { block-size: clamp(92px, 11vh, 148px); }
  .tile__fallback .avatar { inline-size: 104px; block-size: 104px; }
}

/* On desktop the screen/hand buttons are always visible, so keep the More
   menu short; on phones those buttons move into the menu instead. */
.more-mobile-actions { display: grid; gap: 2px; }
.more-reactions-label {
  padding: 6px 12px 0;
  color: var(--text-subtle);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.more-reactions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  padding: 2px 4px 6px;
}
.menu .more-reactions button {
  display: grid;
  place-items: center;
  inline-size: 40px;
  min-inline-size: 40px;
  block-size: 40px;
  min-block-size: 40px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text);
  font-size: 1.15rem;
}
.menu .more-reactions button:hover { background: var(--surface-4); }
@media (max-width: 340px) {
  .menu .more-reactions button {
    inline-size: 36px;
    min-inline-size: 36px;
    block-size: 36px;
    min-block-size: 36px;
  }
}
@media (min-width: 768px) {
  .more-mobile-actions { display: none; }
}

/* Menus and dialogs on touch devices need a scrollable ceiling. */
@media (max-width: 767px) {
  #more-menu { max-block-size: min(58dvh, 380px); }
  .reaction-float { font-size: 1.75rem; }
  .person__actions button { inline-size: 40px; block-size: 40px; }
  .panel-tabs .panel-close {
    flex-basis: 44px;
    inline-size: 44px;
    min-inline-size: 44px;
    block-size: 44px;
  }
  .menu button, .menu a { min-block-size: 40px; }
  .panel-tabs__list [role="tab"] { min-block-size: 44px; }
}

/* Remote audio is played through a dedicated media element so a camera/screen
   video element can never mute it implicitly. */
.tile__audios {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
  pointer-events: none;
}
.tile audio {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
  pointer-events: none;
}
.sound-hint {
  position: absolute;
  inset-block-start: calc(var(--header-h) + var(--space-3) + env(safe-area-inset-top, 0px));
  inset-inline: 0;
  z-index: var(--z-popover);
  margin-inline: auto;
  inline-size: fit-content;
  min-block-size: 44px;
  padding: 0 var(--space-4);
  border-radius: var(--radius-pill);
  color: var(--on-brand);
  background: var(--brand);
  border: 0;
  box-shadow: var(--glow);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 650;
  cursor: pointer;
}
.sound-hint svg { inline-size: 18px; block-size: 18px; }
.sound-hint--mic {
  inset-block-start: calc(var(--header-h) + var(--space-3) + 56px + env(safe-area-inset-top, 0px));
  background: var(--surface-3);
  color: var(--text);
}

/* Meeting occupancy and host-managed bans -------------------------------- */
.room-count__of {
  color: var(--text-subtle);
  font-weight: 500;
}
#room-count-limit { color: var(--text-muted); }

.people-pane {
  display: flex;
  flex-direction: column;
}
.people-pane .people {
  flex: 1 1 auto;
  block-size: auto;
}
.banned {
  flex: 0 0 auto;
  max-block-size: min(38%, 280px);
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding: var(--space-3);
  border-block-start: 1px solid var(--border);
  background: var(--surface-1);
}
.banned[hidden] { display: none; }
.banned__title {
  margin-block-end: var(--space-2);
  color: var(--text-subtle);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.banned__list { display: grid; gap: var(--space-1); }
.banned-person {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}
.banned-person__name {
  min-inline-size: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.84rem;
  font-weight: 550;
}
.banned-person .btn { min-block-size: 32px; }

.stat-card--action:disabled {
  cursor: not-allowed;
  opacity: 0.5;
  transform: none;
  box-shadow: none;
}

/* Very small screens (small phones, split-screen windows): keep everything
   inside the viewport rather than letting the call bar scroll sideways. */
@media (max-width: 340px) {
  .room__controls { gap: 0; padding: 3px; }
  .room__controls .icon-btn { inline-size: 40px; block-size: 40px; }
  .room__controls svg { inline-size: 19px; block-size: 19px; }
  .room__grid { --room-controls-space: calc(64px + env(safe-area-inset-bottom, 0px)); }
  .site-header__inner { padding-inline: var(--space-3); gap: var(--space-2); }
  .site-header .logo__text { display: none; }
  .site-header__actions .btn { padding-inline: var(--space-3); }
  .auth-card { padding: var(--space-3); }
  .grid-3 { grid-template-columns: minmax(0, 1fr); }
  .reaction-bar button { inline-size: 36px; block-size: 36px; }
}

/* Larger rooms: keep 10-20 participant tiles in a sensible grid. */
.room__grid[data-count="10"] .room__tiles,
.room__grid[data-count="11"] .room__tiles,
.room__grid[data-count="12"] .room__tiles { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.room__grid[data-count="13"] .room__tiles,
.room__grid[data-count="14"] .room__tiles,
.room__grid[data-count="15"] .room__tiles,
.room__grid[data-count="16"] .room__tiles,
.room__grid[data-count="17"] .room__tiles,
.room__grid[data-count="18"] .room__tiles,
.room__grid[data-count="19"] .room__tiles,
.room__grid[data-count="20"] .room__tiles { grid-template-columns: repeat(5, minmax(0, 1fr)); }

@media (max-width: 767px) {
  .room__grid[data-count="10"] .room__tiles,
  .room__grid[data-count="11"] .room__tiles,
  .room__grid[data-count="12"] .room__tiles,
  .room__grid[data-count="13"] .room__tiles,
  .room__grid[data-count="14"] .room__tiles,
  .room__grid[data-count="15"] .room__tiles,
  .room__grid[data-count="16"] .room__tiles,
  .room__grid[data-count="17"] .room__tiles,
  .room__grid[data-count="18"] .room__tiles,
  .room__grid[data-count="19"] .room__tiles,
  .room__grid[data-count="20"] .room__tiles { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .room__grid[data-count="10"] .room__tiles,
  .room__grid[data-count="11"] .room__tiles,
  .room__grid[data-count="12"] .room__tiles,
  .room__grid[data-count="13"] .room__tiles,
  .room__grid[data-count="14"] .room__tiles,
  .room__grid[data-count="15"] .room__tiles,
  .room__grid[data-count="16"] .room__tiles,
  .room__grid[data-count="17"] .room__tiles,
  .room__grid[data-count="18"] .room__tiles,
  .room__grid[data-count="19"] .room__tiles,
  .room__grid[data-count="20"] .room__tiles { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ==========================================================================
   13. 2026 polish pass — Persian type, motion, voice and chat detail
   Everything here is transform/opacity first; reduced-motion already disables
   it globally above.
   ========================================================================== */

/* Persian / bidirectional text --------------------------------------------- */
.msg__text,
.chat__form .input,
.chat__typing,
.chat__empty {
  font-family: var(--font-fa);
}

.msg__text {
  line-height: 1.75;
  text-align: start;
  font-size: 0.93rem;
}

.msg__text:dir(rtl),
.chat__form .input:dir(rtl) {
  letter-spacing: 0;
}

.chat__form .input::placeholder {
  font-family: var(--font-fa);
  letter-spacing: 0;
}

:lang(fa),
[dir="rtl"] {
  font-family: var(--font-fa);
}

/* Page and frame motion ---------------------------------------------------- */
@keyframes rise-in {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes soft-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scale-in {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes tile-in {
  from { opacity: 0; transform: translateY(8px) scale(0.985); }
  to { opacity: 1; transform: none; }
}

.site-header,
.app-header,
.app-sidebar {
  animation: soft-in var(--dur-base) var(--ease-out) both;
}

.hero__copy > *,
.section-head > *,
.auth-card__head > * {
  animation: rise-in var(--dur-slow) var(--ease-out) both;
}
.hero__copy > :nth-child(2) { animation-delay: 55ms; }
.hero__copy > :nth-child(3) { animation-delay: 105ms; }
.hero__copy > :nth-child(4) { animation-delay: 155ms; }
.section-head > :nth-child(2) { animation-delay: 45ms; }
.section-head > :nth-child(3) { animation-delay: 90ms; }
.auth-card__head > :nth-child(2) { animation-delay: 45ms; }
.auth-card__head > :nth-child(3) { animation-delay: 90ms; }

.hero__art,
.auth-card,
.app-main__inner,
.lobby__body {
  animation: rise-in var(--dur-slow) var(--ease-out) both;
}

.feature,
.stat-card,
.meeting-row {
  animation: rise-in var(--dur-base) var(--ease-out) both;
}
.feature:nth-child(2),
.meeting-row:nth-child(2) { animation-delay: 40ms; }
.feature:nth-child(3),
.meeting-row:nth-child(3) { animation-delay: 80ms; }
.feature:nth-child(4),
.meeting-row:nth-child(4) { animation-delay: 120ms; }
.feature:nth-child(5),
.meeting-row:nth-child(5) { animation-delay: 160ms; }
.feature:nth-child(6),
.meeting-row:nth-child(6) { animation-delay: 200ms; }

.tile {
  animation: tile-in var(--dur-base) var(--ease-out) both;
}

/* Brand mark and nav details ------------------------------------------------ */
@keyframes sparkle-float {
  0%, 100% { transform: translateY(0) rotate(0deg) scale(1); }
  45% { transform: translateY(-1px) rotate(-4deg) scale(1.05); }
  70% { transform: translateY(0) rotate(2deg) scale(1.01); }
}

.logo__mark {
  transition: transform var(--dur-base) var(--ease-spring), box-shadow var(--dur-base) var(--ease-out);
}
.logo:hover .logo__mark {
  transform: rotate(-5deg) scale(1.05);
  box-shadow: 0 8px 40px rgb(255 106 43 / 0.48);
}
.logo__mark svg {
  animation: sparkle-float 5s var(--ease-in-out) infinite;
}

.site-nav a,
.nav-item {
  position: relative;
  overflow: hidden;
}
.site-nav a::after,
.nav-item::after {
  content: "";
  position: absolute;
  inset-block-end: 4px;
  inset-inline: 12px;
  block-size: 1px;
  background: linear-gradient(90deg, transparent, var(--orange), transparent);
  transform: scaleX(0);
  transition: transform var(--dur-fast) var(--ease-out);
}
.site-nav a:hover::after,
.nav-item:hover::after { transform: scaleX(1); }

/* Buttons, loading and micro-interactions ---------------------------------- */
.btn {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.btn:hover:not(:disabled) { transform: translateY(-1px); }
.btn:active:not(:disabled) { transform: translateY(0) scale(0.975); }

.btn--primary {
  background-size: 180% 180%;
  background-position: 0% 50%;
  transition: background-position var(--dur-slow) var(--ease-out),
              filter var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
}
.btn--primary:hover:not(:disabled) {
  background-position: 100% 50%;
  filter: brightness(1.07);
  box-shadow: 0 10px 34px rgb(255 106 43 / 0.44);
}

.btn--ghost:hover:not(:disabled),
.btn--outline:hover:not(:disabled) {
  box-shadow: inset 0 0 0 1px rgb(255 255 255 / 0.04);
}

.icon-btn svg,
.btn svg {
  transition: transform var(--dur-fast) var(--ease-spring);
}
.icon-btn:hover svg { transform: scale(1.08); }
.icon-btn:active svg { transform: scale(0.92); }

.btn.is-loading,
.icon-btn.is-loading {
  color: transparent !important;
  pointer-events: none;
  cursor: wait;
}
.btn.is-loading > *,
.icon-btn.is-loading > * { opacity: 0; }
.btn.is-loading::after,
.icon-btn.is-loading::after {
  content: "";
  position: absolute;
  inline-size: 16px;
  block-size: 16px;
  border: 2px solid var(--spinner-color, var(--text));
  border-block-start-color: transparent;
  border-radius: var(--radius-pill);
  animation: spin 0.7s linear infinite;
  inset: 0;
  margin: auto;
}
.btn--primary { --spinner-color: var(--on-brand); }
.icon-btn--brand { --spinner-color: var(--on-brand); }
.icon-btn--danger { --spinner-color: #fff; }

/* Toasts ------------------------------------------------------------------- */
.toast {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-3);
  backdrop-filter: blur(var(--glass-blur-2)) saturate(var(--glass-saturate));
  -webkit-backdrop-filter: blur(var(--glass-blur-2)) saturate(var(--glass-saturate));
}
.toast::before {
  content: "";
  position: absolute;
  inset-block: 0;
  inset-inline-start: 0;
  inline-size: 3px;
  background: var(--brand);
  opacity: 0.9;
}
.toast--success::before { background: var(--success); }
.toast--error::before { background: var(--danger); }
.toast svg { transition: transform var(--dur-base) var(--ease-spring); }
.toast:hover svg { transform: scale(1.12) rotate(-4deg); }

/* Auth --------------------------------------------------------------------- */
.auth-shell {
  position: relative;
  isolation: isolate;
  overflow: hidden;
}
.auth-shell::before,
.auth-shell::after {
  content: "";
  position: absolute;
  z-index: -1;
  inline-size: 420px;
  block-size: 420px;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.22;
  pointer-events: none;
  animation: aurora 16s var(--ease-in-out) infinite alternate;
}
.auth-shell::before {
  inset-block-start: -160px;
  inset-inline-start: -120px;
  background: radial-gradient(circle, var(--orange), transparent 68%);
}
.auth-shell::after {
  inset-block-end: -220px;
  inset-inline-end: -120px;
  background: radial-gradient(circle, var(--yellow), transparent 68%);
  animation-delay: -6s;
}
@keyframes aurora {
  from { transform: translate3d(-12px, 4px, 0) scale(0.95); }
  to { transform: translate3d(18px, -10px, 0) scale(1.08); }
}

.auth-card {
  box-shadow: 0 32px 100px rgb(0 0 0 / 0.56), inset 0 1px 0 rgb(255 255 255 / 0.08);
}
.auth-card:hover {
  border-color: rgb(255 255 255 / 0.16);
}

.tabs {
  position: relative;
  gap: 4px;
  padding: 4px;
  background: rgb(0 0 0 / 0.16);
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
}
.tabs [role="tab"] {
  position: relative;
  border-radius: var(--radius-pill) !important;
  transition: color var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
}
.tabs [role="tab"][aria-selected="true"] {
  background: linear-gradient(135deg, rgb(255 59 48 / 0.16), rgb(255 200 43 / 0.12)) !important;
  box-shadow: inset 0 0 0 1px rgb(255 255 255 / 0.08);
}

/* Dashboard ---------------------------------------------------------------- */
.page-head h1 {
  background: linear-gradient(110deg, var(--text) 20%, #ffd0a9 70%, var(--yellow));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat-card {
  position: relative;
  overflow: hidden;
  transition: transform var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.stat-card::after {
  content: "";
  position: absolute;
  inset-block-start: -40px;
  inset-inline-end: -30px;
  inline-size: 100px;
  block-size: 100px;
  border-radius: 50%;
  background: radial-gradient(circle, rgb(255 140 43 / 0.16), transparent 68%);
  pointer-events: none;
  transition: transform var(--dur-slow) var(--ease-out);
}
.stat-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-2);
}
.stat-card:hover::after { transform: scale(1.25); }
.stat-card__val {
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
}

.meeting-row {
  transition: transform var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.meeting-row:hover {
  transform: translateY(-2px);
  border-color: rgb(255 140 43 / 0.28);
  box-shadow: 0 14px 34px rgb(0 0 0 / 0.24), inset 3px 0 0 var(--orange);
}
.meeting-row__icon {
  transition: transform var(--dur-fast) var(--ease-spring), background var(--dur-fast) var(--ease-out);
}
.meeting-row:hover .meeting-row__icon {
  transform: scale(1.06) rotate(-3deg);
}

.empty__icon {
  animation: sparkle-float 5s var(--ease-in-out) infinite;
}

/* Room frame, tiles and voice ---------------------------------------------- */
.room__stage {
  background:
    radial-gradient(1200px 620px at 50% -12%, rgb(255 140 43 / 0.09), transparent 62%),
    radial-gradient(900px 600px at 100% 100%, rgb(255 59 48 / 0.06), transparent 60%);
}

.tile {
  transition: transform var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
}
.tile:hover {
  border-color: rgb(255 255 255 / 0.18);
  transform: translateY(-1px);
}
.tile--speaking {
  animation: speaker-ring 1.8s var(--ease-in-out) infinite;
}
@keyframes speaker-ring {
  0%, 100% {
    border-color: var(--orange) !important;
    box-shadow: 0 0 0 1px rgb(255 140 43 / 0.5), 0 0 20px rgb(255 140 43 / 0.28);
  }
  50% {
    border-color: var(--yellow) !important;
    box-shadow: 0 0 0 2px rgb(255 200 43 / 0.55), 0 0 34px rgb(255 140 43 / 0.45);
  }
}

.voice-bars {
  display: inline-flex;
  align-items: flex-end;
  gap: 2px;
  block-size: 13px;
  flex: none;
  color: var(--orange);
}
.voice-bars i {
  inline-size: 2px;
  block-size: 100%;
  border-radius: 2px;
  background: currentColor;
  opacity: 0.35;
  transform: scaleY(0.32);
  transform-origin: 50% 100%;
  transition: opacity var(--dur-fast) var(--ease-out);
}
.tile--speaking .voice-bars i {
  opacity: 1;
  animation: voice-bar 0.9s var(--ease-in-out) infinite alternate;
}
.tile--speaking .voice-bars i:nth-child(2) { animation-delay: -0.25s; }
.tile--speaking .voice-bars i:nth-child(3) { animation-delay: -0.5s; }
.tile--speaking .voice-bars i:nth-child(4) { animation-delay: -0.12s; }
@keyframes voice-bar {
  from { transform: scaleY(0.28); }
  to { transform: scaleY(0.95); }
}

.tile__label {
  transition: transform var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.tile:hover .tile__label { transform: translateY(-1px); }
.tile__fallback .avatar {
  animation: avatar-breathe 6s var(--ease-in-out) infinite;
}
@keyframes avatar-breathe {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-2px); }
}
.tile--speaking .tile__fallback .avatar { animation: none; transform: scale(1.08); }

.room__controls {
  transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.room__controls:hover {
  box-shadow: 0 18px 50px rgb(0 0 0 / 0.34), 0 0 0 1px rgb(255 255 255 / 0.06) inset;
}

.lobby__vu {
  box-shadow: 0 0 0 1px rgb(255 255 255 / 0.06), inset 0 0 8px rgb(0 0 0 / 0.35);
  overflow: hidden;
}
.lobby__vu-bar {
  box-shadow: 0 0 14px rgb(52 209 122 / 0.55);
  transition: inline-size 80ms linear;
}

/* Panel tabs and chat ------------------------------------------------------ */
.panel-tabs {
  background: linear-gradient(180deg, rgb(255 255 255 / 0.025), transparent);
}
.panel-tabs button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  transition: color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.panel-tabs button svg {
  inline-size: 15px;
  block-size: 15px;
  opacity: 0.72;
}
.panel-tabs button[aria-selected="true"] {
  box-shadow: inset 0 0 0 1px rgb(255 255 255 / 0.07);
}
.panel-tabs button[aria-selected="true"] svg { opacity: 1; color: var(--orange); }

.chat {
  background:
    radial-gradient(420px 300px at 100% 0%, rgb(255 106 43 / 0.045), transparent 68%),
    transparent;
}
.chat__log {
  scroll-behavior: smooth;
  mask-image: linear-gradient(to bottom, transparent 0, #000 18px, #000 calc(100% - 8px), transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, transparent 0, #000 18px, #000 calc(100% - 8px), transparent 100%);
}

.chat__empty {
  display: grid;
  justify-items: center;
  gap: var(--space-3);
  padding: var(--space-8) var(--space-4);
  text-align: center;
  color: var(--text-subtle);
  font-size: 0.86rem;
  line-height: 1.9;
}
.chat__empty p { max-inline-size: 30ch; }
.chat__empty-icon {
  display: grid;
  place-items: center;
  inline-size: 52px;
  block-size: 52px;
  border-radius: var(--radius-md);
  color: var(--orange);
  background: radial-gradient(circle at 30% 20%, rgb(255 140 43 / 0.18), rgb(255 255 255 / 0.025));
  border: 1px solid rgb(255 140 43 / 0.22);
  box-shadow: 0 10px 28px rgb(0 0 0 / 0.24);
  animation: float-soft 5s var(--ease-in-out) infinite;
}
@keyframes float-soft {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

.msg {
  border-radius: var(--radius-md);
  padding: 8px 10px;
  animation: message-in var(--dur-base) var(--ease-out) both;
}
@keyframes message-in {
  from { opacity: 0; transform: translateY(8px) scale(0.985); }
  to { opacity: 1; transform: none; }
}
.msg:hover {
  background: rgb(255 255 255 / 0.035);
  transform: translateX(1px);
}
.msg--self {
  background: linear-gradient(135deg, rgb(255 106 43 / 0.10), rgb(255 200 43 / 0.055));
  border-color: rgb(255 140 43 / 0.22);
  box-shadow: inset 2px 0 0 rgb(255 140 43 / 0.65);
}
.msg .avatar {
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.28), 0 2px 10px rgb(0 0 0 / 0.3);
}
.msg__name { font-size: 0.83rem; }
.msg__time {
  font-variant-numeric: tabular-nums;
  opacity: 0.72;
}
.msg__text {
  color: #f6ece6;
}

.msg__sent {
  display: inline-flex;
  align-items: center;
  color: var(--success);
  opacity: 0;
  animation: sent-in 0.35s var(--ease-spring) 0.15s forwards;
}
.msg__sent svg { inline-size: 12px; block-size: 12px; }
@keyframes sent-in {
  from { opacity: 0; transform: scale(0.4) rotate(-12deg); }
  to { opacity: 0.9; transform: none; }
}

.chat__typing {
  display: flex;
  align-items: center;
  gap: 8px;
  min-block-size: 24px;
  padding: 0 var(--space-4) 6px;
  color: var(--text-muted);
  font-size: 0.76rem;
  line-height: 1.5;
}
.chat__typing[hidden] { display: none !important; }
.typing-dots {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  block-size: 10px;
}
.typing-dots i {
  inline-size: 4px;
  block-size: 4px;
  border-radius: 50%;
  background: var(--orange);
  animation: typing-bounce 1.1s var(--ease-in-out) infinite;
}
.typing-dots i:nth-child(2) { animation-delay: 0.15s; }
.typing-dots i:nth-child(3) { animation-delay: 0.3s; }
@keyframes typing-bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-4px); opacity: 1; }
}

.chat__form {
  align-items: center;
  background: linear-gradient(180deg, rgb(255 255 255 / 0.02), transparent);
}
.chat__form .input {
  transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.chat__form .input:focus {
  background: var(--surface-2);
  box-shadow: 0 0 0 3px rgb(255 106 43 / 0.14);
}
.chat__send {
  box-shadow: 0 4px 18px rgb(255 106 43 / 0.3);
  transition: transform var(--dur-fast) var(--ease-spring), box-shadow var(--dur-fast) var(--ease-out), filter var(--dur-fast) var(--ease-out);
}
.chat__send:hover:not(:disabled) {
  transform: translateY(-1px) rotate(-4deg);
  box-shadow: 0 8px 26px rgb(255 106 43 / 0.42);
}
.chat__send svg { transition: transform var(--dur-fast) var(--ease-spring); }
.chat__send:hover svg { transform: translateX(1px) translateY(-1px); }

/* Menus, modals and hints -------------------------------------------------- */
.menu {
  box-shadow: 0 18px 54px rgb(0 0 0 / 0.5), inset 0 1px 0 rgb(255 255 255 / 0.06);
  transform-origin: top right;
  animation: menu-in var(--dur-fast) var(--ease-out) both;
}
@keyframes menu-in {
  from { opacity: 0; transform: translateY(-4px) scale(0.97); }
  to { opacity: 1; transform: none; }
}
.menu button,
.menu a {
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out), padding-inline-start var(--dur-fast) var(--ease-out);
}
.menu button:hover,
.menu a:hover {
  padding-inline-start: 16px;
}

.scrim:not([hidden]) {
  animation: soft-in var(--dur-fast) var(--ease-out) both;
}
.scrim:not([hidden]) .modal {
  animation: modal-in var(--dur-base) var(--ease-spring) both;
}

.sound-hint {
  animation: hint-in var(--dur-base) var(--ease-spring) both;
}
@keyframes hint-in {
  from { opacity: 0; transform: translateY(-6px) scale(0.96); }
  to { opacity: 1; transform: none; }
}

/* Skeleton and small screens ----------------------------------------------- */
.skeleton {
  position: relative;
  overflow: hidden;
}
.skeleton::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, transparent 20%, rgb(255 255 255 / 0.06) 48%, transparent 76%);
  transform: translateX(-100%);
  animation: skeleton-sheen 1.8s var(--ease-in-out) infinite;
}
@keyframes skeleton-sheen {
  to { transform: translateX(100%); }
}

@media (max-width: 767px) {
  .chat__typing { padding-inline: var(--space-3); }
  .msg { padding: 7px 8px; }
  .voice-bars { block-size: 11px; }
  .room__controls:hover { box-shadow: none; }
  .tile:hover { transform: none; }
}

/* Header brand is useful once the sidebar becomes a drawer. */
.app-header__brand {
  display: none;
  align-items: center;
  gap: 9px;
  margin-inline-end: var(--space-2);
  flex: none;
}
.app-header__brand .logo__mark { inline-size: 30px; block-size: 30px; }
.app-header__brand .logo__mark svg { inline-size: 17px; block-size: 17px; }
.app-header__brand .logo__text { font-size: 0.95rem; white-space: nowrap; }

@media (max-width: 1024px) {
  .app-header__brand { display: inline-flex; }
}

@media (max-width: 767px) {
  .room[data-panel="open"] .room__controls {
    opacity: 0;
    pointer-events: none;
    transform: translateY(8px);
  }
}

@media (max-width: 560px) {
  .app-header__brand { margin-inline-end: 0; }
  .app-header__brand .logo__text { display: none; }
}

/* While the side panel overlays the stage, keep the call controls to its left
   and drop the secondary actions so nothing hides under the panel. */
@media (min-width: 481px) and (max-width: 1024px) {
  .room[data-panel="open"] .room__controls {
    inset-inline-end: min(400px, 100vw);
    max-inline-size: calc(100vw - min(400px, 100vw) - 16px);
  }
  .room[data-panel="open"] .room__controls #ctl-screen,
  .room[data-panel="open"] .room__controls #ctl-hand,
  .room[data-panel="open"] .room__controls #react-wrap,
  .room[data-panel="open"] .room__controls .room__controls-divider {
    display: none;
  }
}