:root {
  color-scheme: dark;
  --bg: #080a0b; --line: #262b2d; --muted: #848c90;
  --text: #f1f4f2; --accent: #e307a8; --button: #fff;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html, body, #app { min-width: 320px; min-height: 100%; }
html { background: var(--bg); }
body { margin: 0; min-height: 100vh; color: var(--text); background: radial-gradient(circle at 50% 40%, #e307a812, transparent 34%), var(--bg); }
button { font: inherit; }
.home { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.primary { min-height: 50px; border: 0; padding: 0 24px; color: #101011; background: var(--button); font-weight: 700; cursor: pointer; transition: transform .15s ease, background .15s ease; }
.primary:hover:not(:disabled) { background: #f0f0f0; transform: translateY(-1px); }
.primary:disabled { cursor: not-allowed; opacity: .38; }
.create-room { min-width: 180px; }
.room-shell { width: min(1240px, calc(100% - 48px)); margin: 0 auto; padding: 34px 0 24px; }
.room-header { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.eyebrow { display: block; margin-bottom: 7px; color: var(--accent); font: 700 9px/1 ui-monospace, monospace; letter-spacing: .15em; }
h1 { margin: 0; font: 500 clamp(18px, 3vw, 28px)/1.15 ui-monospace, monospace; letter-spacing: -.04em; }
.secondary { min-height: 38px; padding: 0 15px; border: 1px solid var(--button); color: #101011; background: var(--button); cursor: pointer; }
.secondary:hover { border-color: #e2e2e2; background: #e2e2e2; }
.stage { position: relative; display: grid; place-items: center; overflow: hidden; width: 100%; min-height: 360px; aspect-ratio: 16/9; border: 1px solid var(--line); background: #030405; }
.stage::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent 49.8%, #ffffff05 50%), linear-gradient(transparent 49.8%, #ffffff05 50%); background-size: 64px 64px; pointer-events: none; }
.stage:fullscreen { width: 100%; height: 100%; border: 0; }
#video { position: absolute; z-index: 1; display: none; width: 100%; height: 100%; background: #000; object-fit: contain; }
#video.visible { display: block; }
.empty { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; text-align: center; padding: 30px; }
.screen-icon { position: relative; width: 48px; height: 34px; margin-bottom: 24px; border: 1px solid #50575a; }
.screen-icon::before { content: ""; position: absolute; left: 50%; top: 100%; width: 1px; height: 8px; background: #50575a; }
.screen-icon::after { content: ""; position: absolute; left: calc(50% - 9px); top: calc(100% + 8px); width: 18px; height: 1px; background: #50575a; }
.empty strong { margin-bottom: 8px; color: #c5cac8; font-size: 14px; font-weight: 600; }
.empty small { color: #626a6e; font-size: 12px; }
.live { position: absolute; z-index: 2; top: 15px; left: 15px; padding: 8px 10px; color: #0a0d09; background: var(--accent); font: 800 9px/1 ui-monospace, monospace; letter-spacing: .1em; }
.fullscreen { position: absolute; z-index: 2; right: 15px; bottom: 15px; width: 40px; height: 40px; border: 1px solid var(--button); color: #101011; background: var(--button); font-size: 20px; cursor: pointer; }
.room-footer { min-height: 76px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 20px; border-bottom: 1px solid var(--line); }
.connection { display: flex; align-items: center; gap: 9px; color: var(--muted); font: 600 10px/1 ui-monospace, monospace; text-transform: uppercase; letter-spacing: .08em; }
#statusDot { width: 7px; height: 7px; border-radius: 50%; background: #51585b; }
#statusDot.connected { background: var(--accent); box-shadow: 0 0 12px #e307a888; }
#share.danger { color: #101011; background: var(--button); }
.viewers { justify-self: end; color: var(--muted); font: 500 11px/1 ui-monospace, monospace; }
.privacy { margin: 17px 0 0; color: #555d60; text-align: center; font: 500 10px/1.5 ui-monospace, monospace; }
.settings-dialog { width: min(620px, calc(100% - 28px)); padding: 0; border: 1px solid #34393c; color: var(--text); background: #0d1011; }
.settings-dialog::backdrop { background: #000c; backdrop-filter: blur(5px); }
.settings-dialog form { padding: 30px; }
.settings-heading h2 { margin: 0; font-size: 27px; font-weight: 600; letter-spacing: -.04em; }
.settings-heading p { margin: 9px 0 25px; color: var(--muted); font-size: 12px; }
.settings-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.settings-grid > label:not(.audio-option) { display: flex; flex-direction: column; gap: 8px; }
.settings-grid label > span { color: #aeb5b2; font: 600 10px/1 ui-monospace, monospace; text-transform: uppercase; letter-spacing: .08em; }
.settings-grid select { width: 100%; height: 45px; padding: 0 12px; border: 1px solid #353b3e; border-radius: 0; color: var(--text); background: #080a0b; font: 500 12px/1 ui-monospace, monospace; }
.settings-grid select:focus { outline: 1px solid var(--accent); border-color: var(--accent); }
.settings-grid option:disabled { color: #555; }
.audio-option { grid-column: 1 / -1; min-height: 58px; padding: 0 14px; border: 1px solid #353b3e; display: flex; align-items: center; justify-content: space-between; cursor: pointer; }
.audio-option > span { display: flex; flex-direction: column; gap: 6px; }
.audio-option b { color: #dce0de; font-size: 11px; }
.audio-option small { color: #666e71; font-size: 9px; }
.audio-option input { position: absolute; opacity: 0; }
.audio-option i { position: relative; width: 34px; height: 18px; border-radius: 10px; background: #303537; transition: .2s; }
.audio-option i::after { content: ""; position: absolute; width: 12px; height: 12px; left: 3px; top: 3px; border-radius: 50%; background: #767e81; transition: .2s; }
.audio-option input:checked + i { background: #e307a83d; }
.audio-option input:checked + i::after { left: 19px; background: var(--accent); }
.audio-option input:focus-visible + i { outline: 2px solid var(--button); outline-offset: 3px; }
.settings-actions { display: flex; justify-content: flex-end; gap: 9px; margin-top: 22px; }
.settings-actions button { min-height: 44px; }
[hidden] { display: none !important; }
@media (max-width: 680px) {
  .room-shell { width: calc(100% - 24px); padding-top: 18px; }
  .room-header { min-height: 82px; }
  h1 { max-width: 60vw; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .stage { min-height: 0; aspect-ratio: 4/3; }
  .room-footer { grid-template-columns: 1fr auto; padding: 14px 0; }
  .connection { order: 2; }
  #share { grid-column: 1 / -1; grid-row: 1; }
  .viewers { order: 3; }
  .settings-dialog form { padding: 24px 18px; }
  .settings-grid { grid-template-columns: 1fr; }
  .audio-option { grid-column: auto; }
  .settings-actions { display: grid; grid-template-columns: 1fr 1fr; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; } }