:root {
  --bg: #070a12;
  --card: #101726;
  --line: rgba(255, 255, 255, 0.09);
  --text: #eef3ff;
  --muted: #95a1b8;
  --accent: #6ea8ff;
  --accent-2: #8b7bff;
  --ok: #3ddc97;
  --warn: #ffd166;
  --danger: #ff6b8a;
  --radius: 18px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  color: var(--text);
  background:
    radial-gradient(900px 420px at 10% -10%, rgba(110, 168, 255, 0.18), transparent 55%),
    radial-gradient(700px 360px at 100% 0%, rgba(139, 123, 255, 0.14), transparent 50%),
    var(--bg);
}

.app {
  width: min(720px, calc(100% - 1.5rem));
  margin: 0 auto;
  padding:
    calc(1.25rem + env(safe-area-inset-top))
    0
    calc(2rem + env(safe-area-inset-bottom));
}

/* Bigger tap targets on phones/tablets */
.btn, .seat, input, select {
  min-height: 44px;
  touch-action: manipulation;
}

.hero h1 {
  margin: 0.3rem 0 0.45rem;
  font-size: clamp(1.8rem, 7vw, 2.3rem);
}
.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--accent);
}
.lead { margin: 0 0 1rem; color: var(--muted); line-height: 1.5; }

.card {
  background: rgba(16, 23, 38, 0.94);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 0.75rem;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
}
.card h2 { margin: 0 0 0.45rem; font-size: 1.05rem; }
.card.warn { border-color: rgba(255, 209, 102, 0.28); }
.card.warn ul { margin: 0.4rem 0 0.8rem; padding-left: 1.1rem; color: var(--muted); }
.card.warn li { margin: 0.25rem 0; }

.hidden { display: none !important; }

.field {
  display: grid;
  gap: 0.3rem;
  color: var(--muted);
  font-size: 0.88rem;
  margin-bottom: 0.7rem;
}
input, select {
  width: 100%;
  border: 1px solid var(--line);
  background: #0a101c;
  color: var(--text);
  border-radius: 12px;
  padding: 0.8rem 0.85rem;
  font: inherit;
  outline: none;
}
input:focus, select:focus {
  border-color: rgba(110, 168, 255, 0.55);
  box-shadow: 0 0 0 3px rgba(110, 168, 255, 0.14);
}
input.code {
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-weight: 900;
}

.row, .join-row, .transport, .time-row, .code-line, .room-head, .pills {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
}
.join-row { display: grid; grid-template-columns: 1fr auto; }
.room-head { justify-content: space-between; align-items: flex-start; }
.transport { margin-top: 0.65rem; }
.time-row { justify-content: space-between; color: var(--muted); font-size: 0.85rem; margin-top: 0.25rem; }
.divider {
  text-align: center;
  color: var(--muted);
  margin: 0.8rem 0;
  font-size: 0.85rem;
}

.btn {
  border: 0;
  border-radius: 999px;
  padding: 0.8rem 1.05rem;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  background: #1c2740;
  color: var(--text);
  -webkit-tap-highlight-color: transparent;
}
.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0a1020;
}
.btn.ghost {
  width: 100%;
  background: transparent;
  border: 1px solid var(--line);
  margin-top: 0.4rem;
}
.btn.full { width: 100%; }
.btn.tiny { padding: 0.35rem 0.65rem; font-size: 0.8rem; }
.btn:disabled { opacity: 0.55; }

.pill {
  border-radius: 999px;
  padding: 0.3rem 0.65rem;
  font-size: 0.78rem;
  font-weight: 800;
  background: rgba(110, 168, 255, 0.14);
  color: #cfe2ff;
}
.pill.ghost { background: rgba(255,255,255,0.05); color: var(--muted); }
.pill.ok { color: var(--ok); }
.pill.bad { color: var(--danger); }

.code-line strong {
  font-size: 1.55rem;
  letter-spacing: 0.14em;
}

.seats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.45rem;
  margin-top: 0.55rem;
}

@media (min-width: 700px) {
  .seats { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .join-row { grid-template-columns: 1fr auto; }
}

@media (max-width: 420px) {
  .seats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .join-row { grid-template-columns: 1fr; }
}
.seat {
  border: 1px solid var(--line);
  background: #0b1220;
  color: var(--text);
  border-radius: 14px;
  padding: 0.75rem 0.4rem;
  font-weight: 800;
  font-size: 0.82rem;
  cursor: pointer;
}
.seat.active {
  border-color: rgba(61, 220, 151, 0.55);
  background: rgba(61, 220, 151, 0.12);
  color: var(--ok);
}
.seat small { display: block; font-weight: 600; color: var(--muted); margin-top: 0.15rem; }

.devices { list-style: none; margin: 0.4rem 0 0; padding: 0; display: grid; gap: 0.4rem; }
.devices li {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.65rem 0.75rem;
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  background: rgba(0,0,0,0.15);
}
.devices .meta { color: var(--muted); font-size: 0.82rem; }

.song-library {
  display: grid;
  gap: 0.45rem;
  margin: 0.55rem 0 0.75rem;
  max-height: 280px;
  overflow: auto;
}
.song-btn {
  width: 100%;
  text-align: left;
  border: 1px solid var(--line);
  background: #0b1220;
  color: var(--text);
  border-radius: 14px;
  padding: 0.75rem 0.85rem;
  font: inherit;
  cursor: pointer;
  min-height: 48px;
  touch-action: manipulation;
}
.song-btn strong { display: block; font-size: 0.95rem; }
.song-btn span { display: block; color: var(--muted); font-size: 0.8rem; margin-top: 0.15rem; }
.song-btn.active {
  border-color: rgba(61, 220, 151, 0.55);
  background: rgba(61, 220, 151, 0.12);
}
.song-btn:hover { filter: brightness(1.06); }

#seek {
  width: 100%;
  margin-top: 0.75rem;
  accent-color: var(--accent);
}

.hint { color: var(--muted); font-size: 0.86rem; line-height: 1.45; margin: 0.55rem 0 0; }
.error { color: #ffb0bf; margin: 0.55rem 0 0; }