/* KarCast Vehicle Browser Client Theme */
:root {
  --bg-color: #081016;
  --surface-color: #101c24;
  --surface-border: #1e2f3a;
  --primary-color: #9de3d2;
  --primary-text: #06231c;
  --text-primary: #edf7f6;
  --text-secondary: #94a3b8;
  --amber-warning: #f59e0b;
  --red-error: #ef4444;
  --green-active: #10b981;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
}

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

#app {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

/* Video Canvas & Container */
#stream-container {
  position: absolute;
  inset: 0;
  width: 100vw;
  height: 100vh;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

#remoteVideo {
  width: 100vw;
  height: 100vh;
  object-fit: contain;
  touch-action: none;
  background: #000;
}

/* Connection Pill (Overlay when connected) */
#connection-pill {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 28, 36, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid var(--surface-border);
  padding: 8px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  pointer-events: auto;
  transition: opacity 0.3s ease;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber-warning);
}

.status-dot.connected {
  background: var(--green-active);
  box-shadow: 0 0 8px var(--green-active);
}

.status-dot.connecting {
  background: var(--primary-color);
  animation: pulse 1.5s infinite;
}

.status-dot.error {
  background: var(--red-error);
}

@keyframes pulse {
  0% { opacity: 0.4; }
  50% { opacity: 1; }
  100% { opacity: 0.4; }
}

/* Pairing & Setup UI Overlay */
#pairing-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(8, 16, 22, 0.95);
  backdrop-filter: blur(20px);
  padding: 24px;
  text-align: center;
}

.card {
  width: 100%;
  max-width: 520px;
  background: var(--surface-color);
  border: 1px solid var(--surface-border);
  border-radius: 28px;
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 44px;
  height: 44px;
  background: rgba(157, 227, 210, 0.12);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
}

.brand-title {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}

.eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--primary-color);
}

.subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Code Entry Form */
#code-form {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.code-inputs {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.code-digit {
  width: 56px;
  height: 68px;
  border-radius: 16px;
  background: #081016;
  border: 2px solid var(--surface-border);
  color: var(--text-primary);
  font-family: monospace;
  font-size: 32px;
  font-weight: 700;
  text-align: center;
  outline: none;
  transition: all 0.2s ease;
}

.code-digit:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(157, 227, 210, 0.15);
}

.primary-button {
  width: 100%;
  height: 56px;
  border-radius: 16px;
  background: var(--primary-color);
  color: var(--primary-text);
  font-size: 17px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: opacity 0.2s ease, transform 0.1s ease;
}

.primary-button:active {
  transform: scale(0.98);
}

.primary-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.secondary-button {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--surface-border);
  padding: 10px 20px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

/* Message & Failure Banner */
.message-box {
  font-size: 14px;
  line-height: 1.4;
  color: var(--amber-warning);
}

.message-box.error {
  color: var(--red-error);
}

/* Diagnostics Panel (?metrics=1) */
#metrics-panel {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  max-height: 40vh;
  background: rgba(8, 16, 22, 0.95);
  border-top: 1px solid var(--surface-border);
  color: #edf7f6;
  padding: 12px 16px;
  font-family: monospace;
  font-size: 11px;
  white-space: pre-wrap;
  overflow-y: auto;
  z-index: 200;
}

[hidden] {
  display: none !important;
}