:root {
  /* SignBridge Color Palette */
  --deep-navy: #0D1B2A;
  --ocean-blue: #1B3A4B;
  --teal: #62B6CB;
  --coral: #FF6B6B;
  --light: #E8F4F8;
  --muted2: #8FA3AD;
  --success: #4ECDC4;

  /* Component Colors */
  --bg: var(--deep-navy);
  --panel: rgba(27,58,75,0.35);
  --panel2: rgba(27,58,75,0.45);
  --text: var(--light);
  --muted: rgba(143,163,173,0.95);
  --brand: var(--teal);
  --accent: var(--coral);
  --good: var(--success);
  --warn: #ffcc66;
  --bad: var(--coral);
  --border: rgba(232,244,248,0.14);
  --shadow: 0 18px 60px rgba(0,0,0,0.45);
  --radius: 16px;
  --radius2: 12px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 800px at 20% 10%, rgba(98,182,203,0.18), transparent 55%),
              radial-gradient(900px 600px at 90% 20%, rgba(255,107,107,0.12), transparent 55%),
              var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* Brand Components */
.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
}

.logo {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.2px;
  color: var(--brand);
}

.logo span { color: var(--text); }

.logo-tag {
  font-size: 0.85rem;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(98,182,203,0.28);
  background: rgba(98,182,203,0.12);
  color: var(--text);
}

/* App Layout */
.app {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 18px;
  max-width: 1400px;
  margin: 0 auto;
}

.app-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.subtitle {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.25rem;
}

.header-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

/* Main Layout */
.layout {
  display: grid;
  grid-template-columns: 1.6fr 0.4fr;
  gap: 16px;
  align-items: start;
  flex: 1;
}

@media (max-width: 1100px) {
  .layout { grid-template-columns: 1fr; }
  .gestures-panel { order: -1; }
}

/* Panel Components */
.panel {
  background: linear-gradient(180deg, var(--panel2), var(--panel));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel-inner {
  padding: 14px;
}

.panel-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 14px;
  color: var(--brand);
}

/* Video Section */
.video-wrap {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(238,243,255,0.12);
  background: rgba(0,0,0,0.25);
  aspect-ratio: 4/3;
  max-height: 600px;
}

#video {
  width: 100%;
  height: 100%;
  display: block;
  transform: scaleX(-1);
  object-fit: cover;
}

.overlay-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  transform: scaleX(-1);
}

/* Status Panel */
.status-panel {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.status-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.status-item {
  background: rgba(0,0,0,0.15);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  padding: 12px;
}

.status-label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 8px;
  font-weight: 600;
}

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

.gesture-emoji {
  font-size: 2.5rem;
  line-height: 1;
  flex-shrink: 0;
}

.gesture-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
}

.phrase-display {
  font-size: 1.1rem;
  color: var(--brand);
  font-weight: 500;
  min-height: 1.5em;
}

/* Detection Status */
.detection-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.status-pill {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(238,243,255,0.14);
  background: rgba(0,0,0,0.10);
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--warn);
  flex: 0 0 auto;
}

.dot.good { background: var(--good); }
.dot.bad { background: var(--bad); }

.status-text {
  font-size: 0.9rem;
  color: var(--muted);
  white-space: nowrap;
}

.detection-indicators {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(238,243,255,0.14);
  background: rgba(0,0,0,0.10);
  font-size: 0.85rem;
}

.indicator-icon {
  font-size: 1.2rem;
}

.indicator-text {
  color: var(--muted);
}

.indicator-text strong {
  color: var(--text);
  font-weight: 600;
}

/* Metrics */
.metrics {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
  margin-top: 12px;
  font-variant-numeric: tabular-nums;
}

.metric {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(238,243,255,0.14);
  background: rgba(0,0,0,0.10);
  font-size: 0.85rem;
  color: var(--muted);
}

.metric b {
  color: var(--text);
  font-weight: 600;
}

/* Gestures Grid */
.gestures-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin-bottom: 12px;
}

.gesture-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(238,243,255,0.10);
  border-radius: var(--radius2);
  padding: 10px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: all 0.2s ease;
  cursor: pointer;
}

.gesture-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(98,182,203,0.30);
}

.gesture-card.active {
  background: rgba(98,182,203,0.20);
  border-color: rgba(98,182,203,0.60);
  transform: scale(1.02);
}

.gesture-card-emoji {
  font-size: 2rem;
  line-height: 1;
  flex-shrink: 0;
}

.gesture-card-info {
  flex: 1;
  min-width: 0;
}

.gesture-card-name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text);
  margin-bottom: 2px;
}

.gesture-card-phrase {
  font-size: 0.8rem;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.help-text {
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.3;
  padding: 10px;
  background: rgba(98,182,203,0.08);
  border: 1px solid rgba(98,182,203,0.15);
  border-radius: var(--radius2);
}

/* Buttons */
button, .btn-home {
  border: 1px solid rgba(238,243,255,0.18);
  background: rgba(255,255,255,0.08);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 0.95rem;
  font-family: inherit;
  cursor: pointer;
  transition: transform .08s ease, background .15s ease, border-color .15s ease;
  user-select: none;
  touch-action: manipulation;
  text-decoration: none;
  display: inline-block;
}

.btn-home {
  background: rgba(98,182,203,0.15);
  border-color: rgba(98,182,203,0.30);
  font-weight: 600;
}

.btn-home:hover {
  background: rgba(98,182,203,0.25);
  border-color: rgba(98,182,203,0.45);
}

button:hover {
  background: rgba(255,255,255,0.12);
}

button:active {
  transform: translateY(1px);
}

button.primary {
  background: rgba(98,182,203,0.20);
  border-color: rgba(98,182,203,0.35);
  font-weight: 600;
}

button.primary:hover {
  background: rgba(98,182,203,0.30);
}

button.danger {
  background: rgba(255,107,107,0.12);
  border-color: rgba(255,107,107,0.35);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.pill {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(232,244,248,0.18);
  background: rgba(0,0,0,0.16);
  font-weight: 700;
}

.btn-icon {
  padding: 8px;
  font-size: 1.2rem;
  line-height: 1;
  min-width: unset;
}

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.70);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 18px;
  z-index: 999;
  backdrop-filter: blur(4px);
}

.modal-backdrop.open {
  display: flex;
}

.modal {
  width: min(700px, 100%);
  max-height: 90vh;
  border-radius: var(--radius);
  border: 1px solid rgba(238,243,255,0.16);
  background: linear-gradient(180deg, var(--panel2), var(--panel));
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.modal header {
  padding: 16px 18px;
  border-bottom: 1px solid rgba(238,243,255,0.12);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-shrink: 0;
}

.modal-title {
  font-weight: 700;
  font-size: 1.1rem;
}

.modal .body {
  padding: 18px;
  overflow-y: auto;
  flex: 1;
}

.modal .actions {
  padding: 14px 18px;
  border-top: 1px solid rgba(238,243,255,0.12);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
  flex-shrink: 0;
}

/* Settings Form */
.settings-grid {
  display: grid;
  gap: 20px;
}

.setting-group {
  display: grid;
  gap: 8px;
}

.setting-label {
  display: grid;
  gap: 8px;
}

.setting-label.row {
  grid-template-columns: 1fr auto;
  align-items: center;
}

.label-text {
  color: var(--text);
  font-weight: 500;
  font-size: 0.95rem;
}

.help {
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.3;
}

.help a {
  color: var(--brand);
  text-decoration: none;
}

.help a:hover {
  text-decoration: underline;
}

/* Form Controls */
select, input[type="text"], input[type="password"] {
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(238,243,255,0.16);
  background: rgba(0,0,0,0.22);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}

select:focus, input[type="text"]:focus, input[type="password"]:focus {
  border-color: var(--brand);
}

input[type="range"] {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: rgba(238,243,255,0.15);
  outline: none;
  -webkit-appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--brand);
  cursor: pointer;
  transition: transform 0.1s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--brand);
  cursor: pointer;
  border: none;
}

input[type="checkbox"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
}

.input-with-toggle {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
}

/* Utilities */
.noscript {
  padding: 16px;
  color: #fff;
  background: #300;
  text-align: center;
}

:focus-visible {
  outline: 3px solid rgba(98,182,203,0.55);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}

/* Responsive adjustments */
@media (max-width: 600px) {
  .app {
    padding: 12px;
    gap: 12px;
  }

  .app-header {
    flex-direction: column;
    align-items: stretch;
  }

  .header-actions {
    justify-content: stretch;
  }

  .header-actions button {
    flex: 1;
  }

  .status-row {
    grid-template-columns: 1fr;
  }

  .detection-status {
    flex-direction: column;
    align-items: stretch;
  }

  .metrics {
    justify-content: center;
  }

  .video-wrap {
    aspect-ratio: 3/4;
  }
}

/* =====================================================
   COCKPIT PANEL STYLES
   ===================================================== */

.cockpit-modal {
  max-width: 900px;
  max-height: 90vh;
}

.cockpit-modal header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.cockpit-modal header .preset-badge {
  margin-left: auto;
}

.settings-icon {
  font-size: 1.2rem;
}

.preset-badge {
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(98,182,203,0.2);
  color: var(--brand);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.cockpit-body {
  max-height: 60vh;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(98,182,203,0.3) transparent;
}

.cockpit-body::-webkit-scrollbar {
  width: 6px;
}

.cockpit-body::-webkit-scrollbar-thumb {
  background: rgba(98,182,203,0.3);
  border-radius: 3px;
}

.cockpit-section {
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.cockpit-section:last-child {
  border-bottom: none;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--brand);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.section-icon {
  font-size: 1rem;
}

/* Presets */
.presets-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.preset-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 12px 8px;
  background: rgba(0,0,0,0.2);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.2s;
}

.preset-btn:hover {
  background: rgba(255,255,255,0.05);
  color: var(--text);
}

.preset-btn.active {
  background: rgba(98,182,203,0.15);
  border-color: var(--brand);
  color: var(--text);
}

.preset-icon { font-size: 1.4rem; }
.preset-name { font-size: 0.85rem; font-weight: 600; }
.preset-desc { font-size: 0.7rem; opacity: 0.7; }

/* Label Row */
.label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.label-row b {
  color: var(--brand);
  font-variant-numeric: tabular-nums;
}

/* Checkbox Grid */
.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin-bottom: 12px;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: rgba(0,0,0,0.1);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--muted);
  transition: all 0.2s;
}

.checkbox-item:hover {
  background: rgba(255,255,255,0.05);
  color: var(--text);
}

.checkbox-item input[type="checkbox"] {
  accent-color: var(--brand);
}

/* Buttons */
.btn-small {
  padding: 8px 14px;
  background: rgba(98,182,203,0.15);
  border: 1px solid rgba(98,182,203,0.3);
  border-radius: 8px;
  color: var(--brand);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-small:hover {
  background: rgba(98,182,203,0.25);
}

.btn-danger {
  background: rgba(255,107,107,0.15) !important;
  border-color: rgba(255,107,107,0.35) !important;
  color: var(--accent) !important;
}

.buttons-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* AI Section */
.ai-section {
  background: linear-gradient(135deg, rgba(98,182,203,0.05), rgba(78,205,196,0.05));
  margin: 0 -14px;
  padding: 14px !important;
  border-left: 3px solid var(--brand);
}

/* Performance Grid */
.perf-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.perf-item {
  background: rgba(0,0,0,0.2);
  border-radius: 8px;
  padding: 10px;
  text-align: center;
}

.perf-label {
  display: block;
  font-size: 0.7rem;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.perf-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--brand);
}

/* Shortcuts */
.shortcuts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
}

.shortcut {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  background: rgba(0,0,0,0.15);
  border-radius: 6px;
  font-size: 0.8rem;
  color: var(--muted);
}

.shortcut kbd {
  padding: 3px 6px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.75rem;
  color: var(--text);
}

/* Input with toggle */
.input-with-toggle {
  display: flex;
  gap: 8px;
}

.input-with-toggle input {
  flex: 1;
}

/* High Contrast */
body.high-contrast {
  --bg: #000;
  --panel: rgba(30,30,30,0.95);
  --text: #fff;
  --brand: #00ffff;
}

/* Large Text */
body.large-text {
  font-size: 18px;
}

/* Reduced Motion */
body.reduce-motion * {
  animation: none !important;
  transition: none !important;
}

@media (max-width: 600px) {
  .presets-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .checkbox-grid {
    grid-template-columns: 1fr;
  }
  .perf-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .shortcuts-grid {
    grid-template-columns: 1fr;
  }
}