:root {
  color-scheme: light;
  --forest: #173f35;
  --forest-soft: #2b6654;
  --cream: #fffaf0;
  --cream-deep: #f5ead5;
  --burgundy: #8f2f3d;
  --ink: #27332e;
  --muted: #68766f;
  --line: #dfd4c2;
  --shadow: 0 18px 44px rgba(31, 54, 43, .12);
  font-family: ui-rounded, "SF Pro Rounded", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; background: var(--cream); color: var(--ink); }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
.app-shell { min-height: 100vh; background: radial-gradient(circle at 85% 0%, #f1dfc1 0, transparent 32rem), var(--cream); }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem max(1rem, calc((100vw - 1120px) / 2)); background: var(--forest); color: white; }
.brand { display: flex; gap: .75rem; align-items: center; color: inherit; text-decoration: none; font-weight: 800; letter-spacing: .02em; }
.brand-mark { font-size: 1.8rem; }
.top-actions { display: flex; gap: .5rem; align-items: center; }
.icon-button, .ghost-button { border: 1px solid rgba(255,255,255,.35); color: white; background: transparent; border-radius: 999px; padding: .5rem .8rem; }
.page { width: min(1120px, calc(100% - 2rem)); margin: 0 auto; padding: 2rem 0 4rem; }
.hero { display: grid; gap: 1.5rem; align-items: center; padding: clamp(1.5rem, 5vw, 4rem) 0; }
.hero h1 { margin: 0; color: var(--forest); font-size: clamp(2.4rem, 7vw, 5.8rem); line-height: .98; max-width: 11ch; }
.hero p { max-width: 42rem; font-size: 1.15rem; line-height: 1.6; color: var(--muted); }
.evergreen { color: var(--burgundy); }
.panel, .room-card { background: rgba(255,255,255,.72); border: 1px solid var(--line); border-radius: 1.25rem; box-shadow: var(--shadow); }
.panel { padding: clamp(1rem, 3vw, 2rem); }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1rem; }
.room-card { padding: 1rem; display: grid; gap: .65rem; }
.room-card h3, .panel h2 { margin: 0; color: var(--forest); }
.room-meta, .muted { color: var(--muted); }
.room-meta { display: flex; flex-wrap: wrap; gap: .4rem .8rem; font-size: .9rem; }
.status { display: inline-flex; width: fit-content; border-radius: 999px; padding: .25rem .6rem; background: var(--cream-deep); color: var(--forest); font-size: .82rem; font-weight: 700; }
.room-code-box { display: grid; gap: .55rem; margin-bottom: 1rem; padding: 1rem; text-align: center; background: var(--cream-deep); border: 1px solid var(--line); border-radius: 1rem; }
.room-code-label { color: var(--muted); font-size: .85rem; font-weight: 750; text-transform: uppercase; letter-spacing: .08em; }
.room-code { color: var(--forest); font-size: clamp(2rem, 9vw, 3.2rem); letter-spacing: .24em; line-height: 1.1; }
.room-code-box .actions { justify-content: center; }
.device-link-panel { display: grid; gap: .6rem; margin-top: 1rem; }
.device-link-url { width: 100%; box-sizing: border-box; padding: .7rem; border: 1px solid var(--line); border-radius: .6rem; background: #fffdf7; color: var(--forest); font: inherit; }
.actions { display: flex; flex-wrap: wrap; gap: .65rem; align-items: center; }
.primary, .secondary, .danger { border: 0; border-radius: .8rem; padding: .75rem 1rem; font-weight: 750; }
.primary { background: var(--forest); color: white; }
.secondary { background: var(--cream-deep); color: var(--forest); }
.danger { background: var(--burgundy); color: white; }
button:disabled { opacity: .55; cursor: not-allowed; }
.form { display: grid; gap: 1rem; max-width: 680px; }
.field { display: grid; gap: .4rem; }
.field label { font-weight: 750; color: var(--forest); }
.field input, .field select, .field textarea { width: 100%; border: 1px solid var(--line); border-radius: .7rem; background: white; color: var(--ink); padding: .75rem .85rem; }
.field textarea { min-height: 7rem; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 3px solid rgba(43,102,84,.2); border-color: var(--forest-soft); }
.choice-row { display: flex; flex-wrap: wrap; gap: .6rem; }
.choice { display: flex; align-items: center; gap: .4rem; padding: .65rem .8rem; border: 1px solid var(--line); border-radius: .7rem; background: white; }
.error, .notice { border-radius: .7rem; padding: .75rem .9rem; }
.error { background: #fbe9e7; color: #7c2632; }
.notice { background: #e6f2e9; color: #20513d; }
.empty { padding: 2rem 1rem; text-align: center; color: var(--muted); border: 1px dashed var(--line); border-radius: 1rem; }
.participant-list { display: grid; gap: .6rem; padding: 0; list-style: none; }
.participant { display: flex; justify-content: space-between; gap: 1rem; padding: .75rem; background: white; border-radius: .7rem; border: 1px solid var(--line); }
.participant strong { color: var(--forest); }
.split { display: grid; gap: 1rem; }
.small { font-size: .9rem; }
.footer-note { margin-top: 2rem; color: var(--muted); font-size: .85rem; }
@media (min-width: 760px) { .hero { grid-template-columns: 1.1fr .9fr; } .split { grid-template-columns: 1fr 1fr; } }