/* ========================================
   Scene2Text - Styles
   ======================================== */

/* --- Custom Properties --- */
:root {
  --color-bg: #0f1117;
  --color-surface: #1a1d27;
  --color-surface-alt: #242838;
  --color-text: #e4e6ed;
  --color-text-muted: #8b8fa3;
  --color-primary: #6c8cff;
  --color-primary-hover: #8ba3ff;
  --color-danger: #ff6b6b;
  --color-danger-hover: #ff8787;
  --color-success: #51cf66;
  --color-warning: #fcc419;
  --color-border: #2e3347;
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;
  --border-radius: 8px;
  --border-radius-sm: 4px;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* --- Header --- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.header h1 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
}

.header-actions {
  display: flex;
  gap: var(--spacing-sm);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  background-color: var(--color-surface-alt);
  color: var(--color-text);
  font-family: var(--font-family);
  font-size: 0.875rem;
  cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s;
  min-height: 44px;
  min-width: 44px;
}

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

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

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

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

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

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

/* --- Main Content --- */
main {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: var(--spacing-md);
  gap: var(--spacing-md);
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
}

/* --- Camera --- */
.camera-container {
  position: relative;
  width: 100%;
  background-color: var(--color-surface);
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

#video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background-color: #000;
}

/* --- Controls --- */
.controls {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Control Bar --- */
.control-bar {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-surface);
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--color-border);
}

.control-bar label {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.control-bar select {
  padding: var(--spacing-xs) var(--spacing-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  background-color: var(--color-surface-alt);
  color: var(--color-text);
  font-family: var(--font-family);
  font-size: 0.875rem;
  min-height: 36px;
}

/* --- Error Container --- */
.error-container {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: rgba(255, 107, 107, 0.1);
  border: 1px solid var(--color-danger);
  border-radius: var(--border-radius-sm);
  color: var(--color-danger);
  font-size: 0.875rem;
}

/* --- Output Area --- */
.output-area {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  max-height: 400px;
  overflow-y: auto;
  padding: var(--spacing-sm);
  background-color: var(--color-surface);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
}

.output-area:empty::before {
  content: "Capture results will appear here";
  color: var(--color-text-muted);
  text-align: center;
  padding: var(--spacing-xl);
  font-size: 0.875rem;
}

/* --- Hero Section --- */
.hero {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  background: linear-gradient(135deg, rgba(108, 140, 255, 0.08) 0%, rgba(108, 140, 255, 0.02) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
}

.hero-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
  line-height: 1;
}

.hero-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}

.hero-description {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  max-width: 480px;
  margin: 0 auto var(--spacing-lg);
  line-height: 1.7;
}

.hero-steps {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.hero-step {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
}

.hero-powered {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 999px;
  background-color: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--color-border);
  text-decoration: none;
  transition: background-color 0.15s, border-color 0.15s;
}

.hero-powered:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: var(--color-text-muted);
}

.hero-powered-text {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.hero-powered-logo {
  width: 22px;
  height: 22px;
}

.hero-powered-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
}

/* Hide hero when authenticated */
[data-state="authenticated"] .hero,
[data-state="running"] .hero,
[data-state="error"] .hero {
  display: none;
}

/* --- Loading Entry --- */
.output-entry.loading {
  border-left-color: var(--color-warning);
}

.loading-dots {
  display: inline-flex;
  gap: 4px;
  align-items: center;
  height: 1.2em;
}

.loading-dots span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-text-muted);
  animation: dot-pulse 1.4s ease-in-out infinite;
}

.loading-dots span:nth-child(2) { animation-delay: 0.2s; }
.loading-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes dot-pulse {
  0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
  40% { opacity: 1; transform: scale(1); }
}

.output-entry {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-surface-alt);
  border-radius: var(--border-radius-sm);
  border-left: 3px solid var(--color-primary);
}

.output-entry .timestamp {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xs);
}

.output-entry .result-text {
  font-size: 0.9rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
}

/* --- Footer --- */
.footer {
  position: sticky;
  bottom: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-lg);
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.footer-status {
  display: flex;
  gap: var(--spacing-lg);
}

.footer-credit {
  display: flex;
  align-items: center;
}

.footer-credit a {
  display: flex;
  align-items: center;
  transition: opacity 0.15s;
}

.footer-credit a:hover {
  opacity: 0.8;
}

.footer-badge {
  height: 28px;
}

/* --- Settings Dialog --- */
#settings-panel {
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  max-width: 500px;
  width: 90vw;
}

#settings-panel::backdrop {
  background-color: rgba(0, 0, 0, 0.6);
}

.settings-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.settings-group {
  margin-bottom: var(--spacing-md);
}

.settings-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xs);
}

.settings-group textarea,
.settings-group input[type="range"],
.settings-group select {
  width: 100%;
  padding: var(--spacing-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  background-color: var(--color-surface-alt);
  color: var(--color-text);
  font-family: var(--font-family);
  font-size: 0.875rem;
}

.settings-group textarea {
  min-height: 80px;
  resize: vertical;
}

.settings-group .range-value {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-align: right;
}

.settings-actions {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: flex-end;
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
}

/* --- Hidden utility --- */
.hidden {
  display: none !important;
}

/* --- CSS State Machine --- */
[data-state="unauthenticated"] .camera-container,
[data-state="unauthenticated"] .controls,
[data-state="unauthenticated"] .control-bar,
[data-state="unauthenticated"] .output-area,
[data-state="unauthenticated"] #btn-logout {
  display: none;
}

[data-state="unauthenticated"] #btn-auth {
  display: inline-flex;
}

[data-state="authenticated"] #btn-auth {
  display: none;
}

[data-state="authenticated"] #btn-stop {
  display: none;
}

[data-state="running"] #btn-auth {
  display: none;
}

[data-state="running"] #btn-start {
  display: none;
}

[data-state="error"] #btn-auth {
  display: none;
}

/* --- Scrollbar --- */
.output-area::-webkit-scrollbar {
  width: 6px;
}

.output-area::-webkit-scrollbar-track {
  background: var(--color-surface);
}

.output-area::-webkit-scrollbar-thumb {
  background-color: var(--color-border);
  border-radius: 3px;
}

/* --- Responsive --- */
@media (min-width: 768px) {
  main {
    padding: var(--spacing-lg);
  }

  .output-area {
    max-height: 500px;
  }
}

@media (max-width: 480px) {
  .header {
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .header h1 {
    font-size: 1rem;
  }

  .footer {
    flex-direction: column;
    gap: var(--spacing-xs);
    text-align: center;
    padding: var(--spacing-xs) var(--spacing-md);
  }

  .footer-status {
    flex-direction: row;
    gap: var(--spacing-md);
    justify-content: center;
    font-size: 0.75rem;
  }

  .footer-badge {
    height: 22px;
  }

  .controls {
    flex-direction: column;
  }

  .controls .btn {
    width: 100%;
  }
}