*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* AIdentical Markenpalette: Orange-CTA (#D16526) + Coral-Akzent (#FF6243)
     auf tiefem Navy-Charcoal (#22253D), Inter-Font. */
  --bg: #1b2034;
  --surface: rgba(34, 37, 61, 0.85);
  --text: #f4f1ee;
  --text-muted: #9aa0b3;
  --accent: #d16526;
  --accent-hover: #b9551d;
  --accent-coral: #ff6243;
  --accent-rgb: 209, 101, 38;
  --accent-glow: 0 16px 40px rgba(209, 101, 38, 0.34);
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --radius: 14px;
}

html, body {
  height: 100%;
  width: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.stage {
  display: grid;
  grid-template-rows: 1fr auto auto;
  height: 100vh;
  width: 100vw;
}

.video-panel {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 32%, rgba(var(--accent-rgb), 0.12) 0%, transparent 58%),
    radial-gradient(circle at 50% 40%, #262a45 0%, #11142099 60%, #0c0e16 75%);
}

.video-panel video {
  width: auto;
  height: 100%;
  max-width: none;
  object-fit: fill;
}

.logout-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 30;
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.28);
  color: rgba(255, 255, 255, 0.72);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.01em;
  cursor: pointer;
  backdrop-filter: blur(2px);
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.logout-btn:hover {
  background: rgba(0, 0, 0, 0.45);
  border-color: rgba(255, 255, 255, 0.24);
  color: rgba(255, 255, 255, 0.88);
}

.controls {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  padding: 16px 20px;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, #000 25%);
  flex-wrap: wrap;
}

body[data-state="idle"] .controls {
  visibility: hidden;
  height: 0;
  padding: 0;
}

.controls-status {
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 300px;
}

.subtitle-panel {
  background: #000;
  padding: 8px 16px;
  min-height: 32px;
}

.subtitle-text {
  font-size: 16px;
  color: var(--text);
  text-align: center;
  white-space: pre-wrap;
}

.btn {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  padding: 10px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.1s, box-shadow 0.15s;
  white-space: nowrap;
}

.btn:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.25);
}

.btn:active:not(:disabled) {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.35;
  cursor: default;
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent-coral) 0%, var(--accent) 65%);
  border-color: var(--accent);
  color: #fff;
  box-shadow: var(--accent-glow);
}

.btn.primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  border-color: var(--accent-hover);
}

.btn.primary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.btn.danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}

.btn.danger:hover:not(:disabled) {
  background: var(--danger-hover);
  border-color: var(--danger-hover);
}

.btn.vad-active {
  border-color: var(--accent);
  box-shadow: 0 0 8px rgba(var(--accent-rgb), 0.55);
}

.btn-xl {
  padding: 16px 36px;
  font-size: 17px;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.first-message-control {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.78);
  user-select: none;
}

.first-message-control input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

.first-message-control.is-disabled {
  opacity: 0.45;
}

.first-message-control.is-disabled input[type="checkbox"] {
  cursor: default;
}

/* Start overlay (shown when idle) */
.start-overlay {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 24px;
  text-align: center;
  background:
    radial-gradient(circle at 50% 32%, rgba(var(--accent-rgb), 0.16) 0%, transparent 62%),
    rgba(12, 14, 18, 0.62);
  backdrop-filter: blur(3px);
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

body[data-state="starting"] .start-overlay,
body[data-state="running"] .start-overlay {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.start-overlay__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px 6px 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.85);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 600;
}

.start-overlay__brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-coral) 0%, var(--accent) 100%);
  color: #fff;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0;
  box-shadow: 0 4px 14px rgba(var(--accent-rgb), 0.45);
}

.start-overlay__hint {
  max-width: 460px;
  font-size: 14px;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.72);
}

.error-banner {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-width: 520px;
  margin: 0 auto;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid rgba(248, 113, 113, 0.45);
  background: rgba(127, 29, 29, 0.55);
  color: #fee2e2;
  text-align: left;
  font-size: 13px;
  line-height: 1.5;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
}

.error-banner[hidden] {
  display: none !important;
}

.error-banner__title {
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #fecaca;
  text-transform: uppercase;
  font-size: 11px;
}

.error-banner__msg {
  font-weight: 600;
  color: #ffffff;
}

.error-banner__hint {
  font-size: 11px;
  color: rgba(254, 226, 226, 0.78);
}

/* Live badge (visible when session running) */
.live-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 25;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.45);
  color: rgba(255, 255, 255, 0.85);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 0;
  transition: opacity 0.25s ease;
}

body[data-state="running"] .live-badge {
  opacity: 1;
}

.live-badge__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: live-pulse 1.4s ease-in-out infinite;
}

@keyframes live-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

@media (max-width: 600px) {
  .controls {
    padding: 10px 12px;
    gap: 8px;
  }
  .btn {
    padding: 8px 12px;
    font-size: 13px;
  }
  .btn-xl {
    padding: 14px 28px;
    font-size: 15px;
  }
  .logout-btn {
    top: 8px;
    right: 8px;
    padding: 4px 9px;
    font-size: 11px;
  }
  .start-overlay__hint {
    font-size: 13px;
  }
}