:root {
  --bg: #0a0710;
  --bg-card: rgba(22, 16, 32, 0.92);
  --bg-input: rgba(10, 6, 18, 0.85);
  --border: rgba(255, 90, 180, 0.25);
  --border-strong: rgba(255, 120, 200, 0.55);
  --text: #f4eaf2;
  --text-dim: #b39db0;
  --accent: #ff5aa4;
  --accent-2: #b066ff;
  --warn: #ffb86b;
  --ok: #8effc1;
  --danger: #ff6b6b;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 50% 30%, #1a0d22 0%, var(--bg) 70%);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
}

#scene-root {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

#scene-root canvas {
  pointer-events: auto;
  display: block;
  width: 100%;
  height: 100%;
}

.lobby {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 560px;
  padding: 24px 16px;
}

.lobby__card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 28px 24px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6), 0 0 80px rgba(255, 90, 180, 0.08);
  backdrop-filter: blur(12px);
}

.lobby__title {
  margin: 0 0 6px;
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 0.5px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lobby__subtitle {
  margin: 0 0 24px;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.45;
}

.lobby__field {
  margin-bottom: 18px;
}

.lobby__field label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1.2px;
}

.lobby__row {
  display: flex;
  gap: 8px;
}

.lobby__row input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  padding: 12px 14px;
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s;
}

.lobby__row input:focus {
  border-color: var(--border-strong);
}

.lobby__hint {
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-dim);
}

.lobby__hint.ok { color: var(--ok); }
.lobby__hint.warn { color: var(--warn); }
.lobby__hint.err { color: var(--danger); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: none;
  border-radius: 12px;
  padding: 12px 18px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.2s, background 0.2s;
  font-family: inherit;
  color: var(--text);
}

.btn:active { transform: translateY(1px); }

.btn--ghost {
  background: transparent;
  border: 1px solid var(--border);
}

.btn--ghost:hover { border-color: var(--border-strong); }

.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  box-shadow: 0 10px 30px rgba(255, 90, 180, 0.35);
}

.btn--primary:hover { box-shadow: 0 14px 40px rgba(255, 90, 180, 0.5); }

.btn--primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
}

.btn--huge {
  width: 100%;
  padding: 20px;
  font-size: 20px;
  border-radius: 18px;
  margin-top: 12px;
}

.btn__icon { font-size: 24px; }

.lobby__status {
  margin-top: 14px;
  text-align: center;
  font-size: 13px;
  color: var(--text-dim);
  min-height: 18px;
}

.lobby__status.ok { color: var(--ok); }
.lobby__status.warn { color: var(--warn); }
.lobby__status.err { color: var(--danger); }

.lobby__details {
  margin-top: 22px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
  font-size: 13px;
  color: var(--text-dim);
}

.lobby__details summary {
  cursor: pointer;
  user-select: none;
  margin-bottom: 8px;
  color: var(--text);
}

.lobby__details ul {
  margin: 6px 0 0;
  padding-left: 20px;
  line-height: 1.5;
}

body.in-vr .lobby { display: none; }

@media (max-width: 480px) {
  .lobby__title { font-size: 26px; }
  .lobby__card { padding: 20px 16px; border-radius: 18px; }
  .btn--huge { padding: 18px; font-size: 18px; }
}