:root {
  color-scheme: dark;
  --bg: #0a0a0d;
  --surface: #15151b;
  --surface-2: #202029;
  --surface-3: #2c2c38;
  --glass: rgba(16, 16, 22, 0.8);
  --line: rgba(255, 255, 255, 0.09);
  --text: #f3f1ee;
  --muted: #9a97a5;
  --accent: #ff7a59;
  --accent-ink: #1c0c06;
  --danger: #ef4352;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --serif: "Instrument Serif", Georgia, serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 var(--sans);
  -webkit-font-smoothing: antialiased;
}
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.i {
  width: 22px;
  height: 22px;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.lobby {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 32px 16px;
  background:
    radial-gradient(70% 55% at 50% -10%, rgba(255, 122, 89, 0.2), transparent 70%),
    var(--bg);
}
.lobby-card { width: min(460px, 100%); }
.brand {
  margin: 0 0 16px;
  font: 400 clamp(64px, 17vw, 108px)/0.9 var(--serif);
  letter-spacing: -0.02em;
}
.brand em { color: var(--accent); }
.tagline { margin: 0 0 36px; max-width: 34ch; color: var(--muted); font-size: 17px; }
.join-label { display: block; margin-bottom: 8px; color: var(--muted); font-size: 13px; }
.join-row { display: flex; gap: 8px; }
.join-row input {
  flex: 1;
  min-width: 0;
  height: 52px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  outline: none;
}
.join-row input:focus { border-color: var(--accent); }
.primary {
  height: 52px;
  padding: 0 22px;
  border: 0;
  border-radius: 14px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
  white-space: nowrap;
}
.primary:hover { filter: brightness(1.08); }
.primary:disabled { opacity: 0.4; cursor: not-allowed; }
.primary.small { height: 36px; padding: 0 14px; border-radius: 10px; font-size: 14px; }
.hint { min-height: 1.5em; margin: 14px 0 0; color: var(--muted); font-size: 14px; }
.features { display: flex; flex-wrap: wrap; gap: 8px; margin: 40px 0 0; padding: 0; list-style: none; }
.features li {
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
}

.room { position: fixed; inset: 0; overflow: hidden; background: #000; }
.room.idle { cursor: none; }
.stage { position: absolute; inset: 0; }

.tile { position: relative; overflow: hidden; background: var(--surface); }
.tile video { display: block; width: 100%; height: 100%; object-fit: cover; background: #000; }
.tile.screen video, .tile.film video { object-fit: contain; }
.tile.mirror video { transform: scaleX(-1); }
.stage > .tile { position: absolute; inset: 0; }
.stage > .tile video { object-fit: contain; }
.stage > [data-tile="localCam"] video { object-fit: cover; }
.stage > [data-tile="localFilm"] { bottom: 92px; background: #000; }

.avatar {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at 50% 40%, #262630, #121217 70%);
}
.avatar span {
  display: grid;
  place-items: center;
  width: 32%;
  max-width: 132px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: clamp(16px, 3.4vw, 48px);
  font-weight: 600;
}
.tile[data-cam="on"] .avatar { display: none; }

.label {
  position: absolute;
  left: 8px;
  bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
  max-width: calc(100% - 16px);
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.55);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  font-size: 12px;
  font-weight: 500;
  pointer-events: none;
  transition: opacity 0.25s;
}
.label .name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.label .badge { display: none; width: 14px; height: 14px; color: #ff6b77; }
.tile[data-mic="off"] .badge { display: block; }
.stage .label { top: 16px; left: 16px; bottom: auto; font-size: 13px; }
.room.idle .stage .label { opacity: 0; }

.strip {
  position: absolute;
  z-index: 2;
  top: 16px;
  right: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: clamp(130px, 17vw, 260px);
}
.strip .tile {
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
}

.waiting {
  position: absolute;
  z-index: 1;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px 16px 120px;
  background: rgba(6, 6, 9, 0.55);
}
.waiting-card { width: min(460px, 100%); text-align: center; }
.waiting h2 { margin: 0 0 6px; font: 400 clamp(34px, 7vw, 48px)/1.05 var(--serif); }
.waiting p { margin: 0; color: var(--muted); }
.invite {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  padding: 6px 6px 6px 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--glass);
}
.invite code {
  flex: 1;
  overflow: hidden;
  color: var(--muted);
  font-size: 13px;
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.status {
  position: absolute;
  z-index: 4;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  max-width: calc(100vw - 32px);
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  font-size: 13px;
  text-align: center;
}

.stats {
  position: absolute;
  z-index: 3;
  top: 52px;
  left: 16px;
  display: grid;
  gap: 2px;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.62);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  font: 12px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
}
.stats div { display: flex; gap: 12px; }
.stats span { min-width: 112px; color: var(--muted); }
.stats b { font-weight: 500; }

.controls {
  position: absolute;
  z-index: 5;
  left: 50%;
  bottom: calc(18px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--glass);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
  transition: opacity 0.25s, transform 0.25s;
}
.room.idle .controls { opacity: 0; transform: translate(-50%, 12px); pointer-events: none; }
.ctl {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 14px;
  background: var(--surface-2);
  transition: background 0.15s, color 0.15s;
}
.ctl:hover { background: var(--surface-3); }
.ctl.off { background: rgba(239, 67, 82, 0.18); color: #ff6b77; }
.ctl.active { background: var(--accent); color: var(--accent-ink); }
.ctl.leave { width: 60px; background: var(--danger); color: #fff; }
.ctl.leave:hover { filter: brightness(1.1); }
.sep { width: 1px; margin: 6px 4px; background: var(--line); }

.settings {
  position: absolute;
  z-index: 6;
  left: 50%;
  bottom: calc(96px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  width: min(400px, calc(100vw - 32px));
  max-height: calc(100dvh - 130px);
  overflow-y: auto;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(16, 16, 22, 0.94);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
.settings h3 {
  margin: 18px 0 8px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.settings > h3:first-child { margin-top: 0; }
.seg { display: flex; gap: 3px; padding: 3px; border-radius: 12px; background: rgba(0, 0, 0, 0.35); }
.seg button {
  flex: 1;
  height: 34px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
}
.seg button:hover { color: var(--text); }
.seg button.selected { background: var(--surface-3); color: var(--text); }
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.note { margin: 10px 0 0; color: var(--muted); font-size: 13px; }
.field {
  display: grid;
  grid-template-columns: 92px 1fr;
  align-items: center;
  gap: 10px;
  margin: 8px 0;
  font-size: 14px;
}
.field select {
  min-width: 0;
  height: 36px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
}
.field input[type="range"], .check input { accent-color: var(--accent); }
.check { display: flex; align-items: center; gap: 10px; margin-top: 10px; font-size: 14px; }
.check input { width: 16px; height: 16px; margin: 0; }

.toast {
  position: fixed;
  z-index: 10;
  left: 50%;
  bottom: calc(100px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  width: max-content;
  max-width: calc(100vw - 32px);
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--glass);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
  font-size: 14px;
}

@media (max-width: 560px) {
  .controls { gap: 5px; padding: 8px; border-radius: 18px; }
  .ctl { width: 42px; height: 42px; border-radius: 12px; }
  .ctl.leave { width: 50px; }
  .sep, .ctl.fs { display: none; }
  .strip { top: 56px; right: 10px; width: 112px; gap: 8px; }
  .strip .tile { border-radius: 10px; }
  .stage > [data-tile="localFilm"] { bottom: 80px; }
  .settings { bottom: calc(80px + env(safe-area-inset-bottom)); }
  .pair { grid-template-columns: 1fr; gap: 0; }
}