:root {
  --bg: #0f1220;
  --card: #1a1f36;
  --card-2: #232a4a;
  --text: #e8ebf5;
  --muted: #9aa3c0;
  --accent: #6c8cff;
  --ok: #3ad29f;
  --warn: #ffb648;
  --border: #2c3463;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(1200px 600px at 50% -10%, #1b2147 0%, var(--bg) 60%);
  color: var(--text);
  min-height: 100vh;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

header h1 {
  margin: 0 0 4px;
  font-size: 1.6rem;
  letter-spacing: -0.02em;
}
.sub { color: var(--muted); margin: 0 0 18px; font-size: 0.95rem; }

.status {
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 16px;
}

.solo-hint {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--muted);
  margin: -6px 0 16px;
}
.link-btn {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
}
.link-btn:hover { background: var(--card-2); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  margin-bottom: 16px;
}
.card h2 { margin: 0 0 6px; font-size: 1.05rem; }
.hint { color: var(--muted); font-size: 0.85rem; font-weight: 400; }

.row { display: flex; gap: 8px; margin-top: 10px; }
input[type="text"] {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 0.9rem;
}
button {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}
button:disabled { opacity: 0.4; cursor: not-allowed; }
button:hover:not(:disabled) { filter: brightness(1.1); }

.qr {
  display: flex;
  justify-content: center;
  padding: 16px;
  background: #fff;
  border-radius: 12px;
  width: fit-content;
  margin: 8px auto;
}
.same-device { display: block; text-align: center; color: var(--accent); font-size: 0.85rem; margin-top: 6px; }

.ids { display: flex; flex-wrap: wrap; gap: 10px; }
.id-chip {
  display: flex; align-items: center; gap: 8px;
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 0.9rem;
}
.id-chip .dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--muted);
}
.id-chip.verified .dot { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.id-chip.verified { border-color: var(--ok); }
.id-chip.host .dot { background: var(--accent); box-shadow: 0 0 8px var(--accent); }
.id-chip.host { border-color: var(--accent); }

.videos { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.tile { position: relative; background: #000; border-radius: 12px; overflow: hidden; aspect-ratio: 4 / 3; }
.tile video { width: 100%; height: 100%; object-fit: cover; background: #000; }
.tile .name {
  position: absolute; left: 8px; bottom: 8px;
  background: rgba(0,0,0,0.6);
  padding: 4px 10px; border-radius: 8px;
  font-size: 0.85rem;
}
.tile .name.verified::before { content: "✓ "; color: var(--ok); font-weight: 700; }

.chat-log {
  height: 200px; overflow-y: auto;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  margin-top: 8px;
  font-size: 0.9rem;
}
.msg { margin-bottom: 6px; line-height: 1.35; }
.msg .who { color: var(--accent); font-weight: 600; }

@media (max-width: 560px) {
  .videos { grid-template-columns: 1fr; }
}