:root {
  color-scheme: dark;
  --bg: #090b0b;
  --panel: #111514;
  --line: #29302e;
  --text: #f3f5f4;
  --muted: #9ba6a2;
  --mint: #73e2b6;
  --mint-deep: #163a2d;
  --danger: #ff6d6d;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body { margin: 0; background: radial-gradient(circle at 50% 0%, #16201c 0, var(--bg) 42rem); }
button { font: inherit; }
button:focus-visible { outline: 3px solid var(--mint); outline-offset: 3px; }
[hidden] { display: none !important; }

.shell { width: min(100% - 2rem, 70rem); min-height: 100dvh; margin: 0 auto; padding: max(1.25rem, env(safe-area-inset-top)) 0 max(1.25rem, env(safe-area-inset-bottom)); display: flex; flex-direction: column; }
.brand { display: flex; align-items: center; gap: .65rem; color: #dce3e0; font-weight: 700; letter-spacing: -.02em; }
.brand__mark { width: .78rem; aspect-ratio: 1; border-radius: 50%; background: var(--mint); box-shadow: 0 0 1.25rem #73e2b677; }
.brand__badge { margin-left: auto; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: .35rem .65rem; font-size: .72rem; font-weight: 500; }
.panel { width: min(100%, 48rem); margin: auto; padding: 4rem 0; }
.eyebrow { color: var(--mint); letter-spacing: .16em; font-size: .72rem; font-weight: 800; }
h1 { margin: .7rem 0 1.25rem; font-size: clamp(2.7rem, 8vw, 5.5rem); line-height: .98; letter-spacing: -.065em; }
.lead { max-width: 38rem; color: var(--muted); font-size: clamp(1rem, 2.2vw, 1.25rem); line-height: 1.6; }
.button { min-height: 3rem; border: 0; border-radius: .8rem; padding: .8rem 1.1rem; cursor: pointer; font-weight: 750; }
.button--primary { margin-top: 1.5rem; background: var(--mint); color: #07130e; }
.button--quiet { background: var(--mint-deep); color: var(--mint); }
.button--danger-quiet { background: #3d1d1d; color: #ffaaaa; }
.button:disabled { opacity: .55; cursor: wait; }
.fineprint { max-width: 35rem; margin-top: 1.2rem; color: #737e7a; font-size: .78rem; line-height: 1.5; }

.join-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin-top: 2.2rem; }
.mode { display: flex; flex-direction: column; align-items: flex-start; gap: .45rem; min-height: 10rem; padding: 1.25rem; border: 1px solid var(--line); border-radius: 1rem; background: var(--panel); color: var(--text); cursor: pointer; text-align: left; }
.mode:hover { border-color: #48675b; background: #151c19; }
.mode__icon { display: grid; place-items: center; width: 2.6rem; aspect-ratio: 1; margin-bottom: .5rem; border-radius: 50%; background: var(--mint-deep); color: var(--mint); }
.mode small { color: var(--muted); }
.invite { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-top: 1rem; padding: .75rem .75rem .75rem 1rem; border: 1px solid var(--line); border-radius: 1rem; color: var(--muted); }
.notice { padding: .85rem 1rem; border-radius: .8rem; }
.notice--error { background: #3d1d1d; color: #ffbcbc; }

.call { flex: 1; display: flex; flex-direction: column; gap: .75rem; padding-top: 1.25rem; min-height: 0; }
.stage { position: relative; flex: 1; min-height: 25rem; overflow: hidden; border: 1px solid var(--line); border-radius: 1.25rem; background: #080a0a; }
#remote-video { width: 100%; height: 100%; object-fit: cover; }
.placeholder { position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; color: var(--muted); text-align: center; }
.pulse { width: 4rem; aspect-ratio: 1; border: 1px solid var(--mint); border-radius: 50%; box-shadow: inset 0 0 2rem #73e2b622; animation: pulse 2s ease-in-out infinite; }
.local-video { position: absolute; right: 1rem; bottom: 1rem; width: min(25%, 12rem); aspect-ratio: 3/4; border: 1px solid #ffffff33; border-radius: .9rem; background: #161a19; object-fit: cover; transform: scaleX(-1); }
.call-meta { position: absolute; top: 1rem; left: 1rem; right: 1rem; display: flex; justify-content: space-between; align-items: center; color: #dce3e0; font-variant-numeric: tabular-nums; }
.chip { padding: .4rem .65rem; border-radius: 999px; background: #000a; font-size: .78rem; }
.verification { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: .75rem 1rem; border: 1px solid var(--line); border-radius: .9rem; background: var(--panel); }
.verification div { display: flex; flex-wrap: wrap; gap: .45rem 1rem; }
.verification span { color: var(--muted); }
.verification code { color: var(--mint); font: 700 .9rem ui-monospace, monospace; }
.verification--verified { border-color: #3d8065; background: #10241c; }
.verification__actions { margin-left: auto; }
.verification .button { min-height: 2.25rem; padding: .5rem .75rem; white-space: nowrap; }
.icon-button { width: 2rem; aspect-ratio: 1; border: 1px solid var(--line); border-radius: 50%; background: transparent; color: var(--muted); cursor: pointer; }
.controls { display: flex; justify-content: center; gap: .65rem; padding: .35rem 0; }
.control { display: flex; flex-direction: column; align-items: center; gap: .25rem; min-width: 4.7rem; border: 0; background: transparent; color: var(--muted); cursor: pointer; }
.control > span { display: grid; place-items: center; width: 3.15rem; aspect-ratio: 1; border-radius: 50%; background: #1d2422; color: var(--text); font-size: 1.25rem; }
.control[aria-pressed="true"] > span { background: #e9eeee; color: #1b201e; }
.control--danger > span { background: #5f2222; color: #ffaaaa; }
.control small { font-size: .7rem; }

dialog { width: min(90vw, 30rem); border: 1px solid var(--line); border-radius: 1rem; padding: 1.5rem; background: var(--panel); color: var(--text); }
dialog::backdrop { background: #000b; }
dialog h2 { margin-top: 0; }
dialog p { color: var(--muted); line-height: 1.55; }

@keyframes pulse { 50% { transform: scale(.9); opacity: .6; } }
@media (max-width: 640px) {
  .shell { width: min(100% - 1rem, 70rem); }
  .brand__badge { display: none; }
  .panel { padding: 2.5rem .5rem; }
  .join-grid { grid-template-columns: 1fr; }
  .mode { min-height: 7.5rem; }
  .stage { min-height: 20rem; border-radius: 1rem; }
  .local-video { width: 28%; right: .7rem; bottom: .7rem; }
  .verification { flex-wrap: wrap; align-items: flex-start; }
  .verification__actions { order: 3; width: 100%; margin-left: 0; }
  .verification__actions .button { flex: 1; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}