:root {
  --bg-primary: #0a0a0c;
  --bg-secondary: #17171a;
  --bg-tertiary: #202024;
  --bg-elevated: #2a2a2f;
  --accent: #e31937; /* Tesla Red */
  --accent-hover: #ff2b4d;
  --text-primary: #f4f4f5;
  --text-secondary: #a1a1aa;
  --text-muted: #6b6b73;
  --border: #303036;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
  --font:
    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
}

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

html,
body {
  height: 100%;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: linear-gradient(180deg, #131316 0%, var(--bg-secondary) 100%);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.5px;
}
.brand .logo {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  color: var(--accent);
}
.brand .logo svg {
  width: 100%;
  height: 100%;
  fill: var(--accent);
}
.brand small {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

/* Layout: single column, centered */
.layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  padding: 24px;
  flex: 1;
  max-width: 960px;
  margin: 0 auto;
  width: 100%;
}

/* Video Player Section */
.player-panel {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.video-stage {
  position: relative;
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  aspect-ratio: 16 / 9;
  width: 100%;
}
.video-stage video {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  background: #000;
}
.noise-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  opacity: 1;
  image-rendering: pixelated;
  transition: opacity 0.3s ease;
}
.noise-canvas.hidden {
  opacity: 0;
}
.video-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--text-muted);
  text-align: center;
  padding: 20px;
}
.video-placeholder svg {
  width: 54px;
  height: 54px;
  opacity: 0.4;
}
.video-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(6px);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  display: none;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.video-badge.visible {
  display: flex;
}
.video-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

.now-playing {
  font-size: 13px;
  color: var(--text-secondary);
  padding: 0 4px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.now-playing strong {
  color: var(--text-primary);
}
.now-playing .ts {
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

/* =============================================
   Camera Selector: 3-column grid + car graphic
   ============================================= */
.cam-selector {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
}

.cs-heading {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 16px;
  text-align: center;
}

.cs-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 16px;
  align-items: center;
}

.cs-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cs-col:first-child {
  align-items: flex-end;
}

.cs-col:last-child {
  align-items: flex-start;
}

.cs-col:nth-child(2) {
  align-items: center;
}

.cs-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
  min-width: 140px;
  justify-content: center;
}

.cs-btn:hover:not(:disabled) {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border-color: #444;
}

.cs-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.cs-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.cs-btn-label {
  flex: 1;
}

.cs-btn-count {
  background: rgba(255, 255, 255, 0.12);
  padding: 1px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
}

.cs-btn.active .cs-btn-count {
  background: rgba(0, 0, 0, 0.25);
}

/* Model Y Top-Down Car Graphic */
.car-graphic {
  display: flex;
  align-items: center;
  justify-content: center;
}

.car-svg {
  width: 60px;
  height: 200px;
}

/* =============================================
   Login Page
   ============================================= */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: radial-gradient(
    ellipse at 50% 30%,
    #1a1a22 0%,
    var(--bg-primary) 70%
  );
}

.login-card {
  width: 100%;
  max-width: 380px;
  padding: 40px 36px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.login-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}

.login-brand .logo {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  color: var(--accent);
}

.login-brand .logo svg {
  width: 100%;
  height: 100%;
  fill: var(--accent);
}

.login-brand h1 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text-primary);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.login-form label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.login-form input[type="password"] {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 15px;
  outline: none;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}

.login-form input[type="password"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(227, 25, 55, 0.15);
}

.login-form button {
  width: 100%;
  padding: 12px;
  background: var(--accent);
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s;
  margin-top: 4px;
}

.login-form button:hover {
  background: var(--accent-hover);
}

.login-error {
  font-size: 13px;
  color: var(--accent);
  text-align: center;
  padding: 8px;
  background: rgba(227, 25, 55, 0.08);
  border-radius: var(--radius-sm);
}

/* =============================================
   Responsive
   ============================================= */
@media (max-width: 700px) {
  .cs-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .cs-col:first-child,
  .cs-col:last-child {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
  }

  .cs-col:nth-child(2) {
    flex-direction: row;
    gap: 10px;
  }

  .car-graphic {
    order: -1;
  }

  .car-svg {
    width: 40px;
    height: 140px;
  }

  .cs-btn {
    min-width: 120px;
    font-size: 12px;
    padding: 8px 12px;
  }
}

@media (max-width: 560px) {
  header {
    padding: 12px 16px;
  }
  .layout {
    padding: 14px 16px;
  }
  .brand small {
    display: none;
  }
}

[hidden] {
  display: none !important;
}