/* dataviz.css — Full-screen 3D + floating glassmorphism overlays */

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

body, html {
  width: 100%; height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  overflow: hidden;
  background: #fff;
  color: #1a1a2e;
}

/* Full-screen 3D canvas */
#model-container { position: fixed; inset: 0; z-index: 0; }

/* Glassmorphism base */
.glass-panel {
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 14px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.07);
  padding: 12px 16px;
  pointer-events: auto;
}

/* Common glass button styles */
.nav-link, .side-panel-toggle, .reset-view-btn {
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 10px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  font-size: 13px;
  font-weight: 600;
  color: #1a1a2e;
  transition: all 0.3s;
  cursor: pointer;
}

.nav-link:hover, .side-panel-toggle:hover, .reset-view-btn:hover {
  background: rgba(74, 158, 255, 0.9);
  color: white;
  transform: translateY(-2px);
  border-color: rgba(74, 158, 255, 0.4);
}

/* Home link */
.nav-link {
  position: fixed;
  top: 14px; left: 14px;
  padding: 8px 14px;
  text-decoration: none;
  z-index: 100;
}

/* Side panel toggle */
.side-panel-toggle {
  position: fixed;
  top: 14px; right: 14px;
  z-index: 100;
  padding: 8px 12px;
  pointer-events: auto;
}
.side-panel-toggle:hover { box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1); transform: translateY(-1px); }

/* Reset View button */
.reset-view-btn { padding: 7px 14px; font-size: 12px; }

/* Overlay wrapper */
.overlay-controls {
  position: fixed;
  inset: 0;
  z-index: 50;
  pointer-events: none;
  display: flex;
  flex-direction: column;
}

/* Top & Bottom bars */
.top-bar, .bottom-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 20px;
  pointer-events: none;
  flex-wrap: wrap;
}
.top-bar { padding: 14px 80px; }
.bottom-bar { margin-top: auto; align-items: flex-end; }
.top-bar > *, .bottom-bar > * { pointer-events: auto; }

/* Side panel */
.side-panel {
  position: fixed;
  top: 70px; right: 14px;
  width: 300px;
  max-height: calc(100vh - 160px);
  overflow-y: auto;
  z-index: 60;
  pointer-events: auto;
  transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94), opacity 0.35s;
}
.side-panel.hidden { transform: translateX(320px); opacity: 0; pointer-events: none; }

/* Form elements */
select {
  padding: 8px 12px;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 10px;
  font-size: 13px;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  min-width: 220px;
  max-width: 360px;
  cursor: pointer;
  color: #1a1a2e;
  transition: border-color 0.2s;
}
select:focus { outline: none; border-color: #4dabf7; box-shadow: 0 0 0 3px rgba(77, 171, 247, 0.15); }

button {
  padding: 7px 14px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.25s;
  font-size: 13px;
  font-weight: 500;
}
button:hover { transform: translateY(-1px); box-shadow: 0 3px 10px rgba(0, 0, 0, 0.12); }

/* Face color buttons */
.face-buttons { display: flex; gap: 5px; flex-wrap: wrap; align-items: center; }
.color-btn, .reset-btn {
  padding: 5px 11px;
  border-radius: 18px;
  font-size: 12px;
  font-weight: 600;
  border: 2px solid transparent;
  transition: all 0.2s;
}
.color-btn:hover { opacity: 0.85; transform: translateY(-1px); }
.color-btn.active { border-color: #1a1a2e; transform: scale(0.95); box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.2); }
.reset-btn { background: #868e96; color: white; }
.reset-btn:hover { background: #6c757d; }

/* Selection badge */
.selection-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: linear-gradient(135deg, rgba(232, 244, 253, 0.9), rgba(219, 234, 254, 0.9));
  border: 1px solid rgba(147, 197, 253, 0.6);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  color: #1e40af;
}
.selection-icon { font-size: 16px; }

/* Heatmap legend */
.heatmap-legend {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: #555;
}
.heatmap-gradient {
  width: 100px; height: 10px;
  border-radius: 5px;
  background: linear-gradient(to right, #ff0000, #ffff00, #00ff00);
  border: 1px solid rgba(0, 0, 0, 0.1);
}

/* Tooltips */
[data-tooltip] { position: relative; }
[data-tooltip]:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 110%; left: 50%;
  transform: translateX(-50%);
  background: #333;
  color: #fff;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11px;
  white-space: nowrap;
  z-index: 200;
  pointer-events: none;
}

/* Text styles */
#mode-description, .study-info, #participant-summary p {
  font-size: 12px;
  color: #555;
  line-height: 1.4;
}
#mode-description { text-align: center; max-width: 400px; }
#participant-summary p { margin: 3px 0; color: #444; }
.study-info { line-height: 1.5; color: #444; }
.study-info p { margin: 4px 0; }
.study-stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5px;
  margin: 8px 0;
}
.study-stat-item {
  background: rgba(233, 236, 239, 0.7);
  padding: 5px 8px;
  border-radius: 6px;
  font-size: 11px;
  text-align: center;
}
.study-stat-item strong { display: block; font-size: 14px; color: #007bff; }
.side-panel h4 {
  font-size: 13px;
  font-weight: 700;
  color: #1a1a2e;
  margin: 14px 0 6px;
  padding-bottom: 4px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}
.side-panel h4:first-child { margin-top: 0; }

/* Hand-face mapping */
.holding-diagram { text-align: center; }
.holding-info-text { font-size: 12px; color: #555; margin-bottom: 10px; line-height: 1.4; }
.hand-face-map { display: flex; justify-content: center; gap: 8px; }
.hand-face-card {
  flex: 1;
  padding: 8px;
  border-radius: 8px;
  background: rgba(248, 249, 250, 0.8);
  border: 1px solid #e9ecef;
}
.hand-face-title { font-size: 11px; font-weight: 700; color: #333; margin-bottom: 5px; }
.face-tags { display: flex; flex-wrap: wrap; gap: 3px; justify-content: center; }
.face-tag { font-size: 9px; font-weight: 600; padding: 2px 6px; border-radius: 10px; white-space: nowrap; }
.face-tag.half-tag { font-size: 8px; opacity: 0.85; }

/* Hand Selector */
.hand-selector-container { display: flex; align-items: center; justify-content: center; gap: 14px; }
.hand-analog { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.analog-label { font-size: 11px; font-weight: 600; color: #444; text-transform: uppercase; letter-spacing: 0.5px; }
.analog-ring {
  position: relative;
  width: 100px; height: 100px;
  border-radius: 50%;
  background: radial-gradient(circle, #f8f8f8 0%, #ebebeb 70%, #ddd 100%);
  border: 3px solid #ccc;
  cursor: pointer;
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.15s;
}
.analog-ring:hover { border-color: #888; box-shadow: 0 0 14px rgba(0, 0, 0, 0.10); transform: scale(1.04); }
.analog-ring.active { border-color: #4dabf7; box-shadow: 0 0 18px rgba(77, 171, 247, 0.35); }
.analog-stick {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 38px; height: 38px;
  border-radius: 50%;
  background: linear-gradient(145deg, #fff, #e6e6e6);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.06), 0 2px 8px rgba(0, 0, 0, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
.hand-emoji { font-size: 17px; }

/* Finger dots */
.finger-dot {
  position: absolute;
  width: 26px; height: 26px;
  border-radius: 50%;
  border: 2px solid #aaa;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  z-index: 2;
  padding: 0;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}
.finger-dot:hover {
  background: #4dabf7;
  border-color: #4dabf7;
  color: #fff;
  box-shadow: 0 0 10px rgba(77, 171, 247, 0.5);
  z-index: 100;
}
.finger-dot.active {
  background: #4dabf7;
  border-color: #228be6;
  color: #fff;
  box-shadow: 0 0 12px rgba(77, 171, 247, 0.6);
}
/* Scale effect for non-middle fingers */
.finger-dot:hover:not(.finger-middle-left):not(.finger-middle-right) {
  transform: scale(1.2);
}
.finger-dot.active:not(.finger-middle-left):not(.finger-middle-right) {
  transform: scale(1.15);
}
/* Middle fingers need to preserve translateX centering */
.finger-middle-left:hover,
.finger-middle-right:hover {
  transform: translateX(-50%) scale(1.2);
}
.finger-middle-left.active,
.finger-middle-right.active {
  transform: translateX(-50%) scale(1.15);
}
.finger-letter { font-size: 10px; font-weight: 700; line-height: 1; pointer-events: none; }

/* Finger positions */
.finger-thumb-left { top: 58%; right: -12px; }
.finger-index-left { top: 4%; right: 4px; }
.finger-middle-left { top: -10px; left: 50%; transform: translateX(-50%); }
.finger-ring-left { top: 4%; left: 4px; }
.finger-little-left { top: 42%; left: -12px; }
.finger-thumb-right { top: 58%; left: -12px; }
.finger-index-right { top: 4%; left: 4px; }
.finger-middle-right { top: -10px; left: 50%; transform: translateX(-50%); }
.finger-ring-right { top: 4%; right: 4px; }
.finger-little-right { top: 42%; right: -12px; }
.finger-dot[data-tooltip]:hover::after { bottom: 115%; font-size: 10px; }

/* Hand divider & actions */
.hand-divider { display: flex; align-items: center; color: #aaa; font-size: 12px; font-style: italic; position: relative; z-index: 10; }
.hand-actions { display: flex; justify-content: center; gap: 6px; flex-wrap: wrap; }
.hand-action-btn {
  padding: 5px 12px;
  border: 2px solid rgba(0, 0, 0, 0.1);
  border-radius: 16px;
  background: rgba(248, 248, 248, 0.9);
  color: #555;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.hand-action-btn:hover { background: #e8f4fd; border-color: #4dabf7; color: #228be6; transform: translateY(-1px); z-index: 100; }
.hand-action-btn.active { background: #4dabf7; border-color: #228be6; color: #fff; }

/* Finger context */
.finger-context { font-size: 11px; color: #555; text-align: center; line-height: 1.3; min-height: 16px; font-style: italic; max-width: 320px; }

/* Responsive */
@media (max-width: 900px) {
  .top-bar { padding: 12px 70px; }
  .side-panel { width: 260px; }
  .analog-ring { width: 90px; height: 90px; }
  .analog-stick { width: 34px; height: 34px; }
  .hand-emoji { font-size: 15px; }
  .finger-dot { width: 22px; height: 22px; }
  .finger-letter { font-size: 9px; }
  select { min-width: 180px; font-size: 12px; }
}

@media (max-width: 768px) {
  .top-bar { padding: 10px 14px; padding-top: 50px; }
  .bottom-bar { padding: 10px 14px; }
  .side-panel {
    top: auto; bottom: 0; right: 0; left: 0;
    width: 100%;
    max-height: 50vh;
    border-radius: 14px 14px 0 0;
  }
  .side-panel.hidden { transform: translateY(100%); }
  .side-panel-toggle { top: auto; bottom: 14px; right: 14px; }
  .hand-selector-container { gap: 10px; }
  .analog-ring { width: 85px; height: 85px; }
  .analog-stick { width: 30px; height: 30px; }
  .hand-emoji { font-size: 14px; }
  .finger-dot { width: 22px; height: 22px; }
  .finger-letter { font-size: 9px; }
}

@media (max-width: 480px) {
  .top-bar { gap: 6px; padding: 8px 10px; padding-top: 46px; }
  .bottom-bar { gap: 6px; padding: 8px 10px; }
  select { min-width: 140px; font-size: 12px; padding: 6px 10px; }
  .color-btn { padding: 4px 8px; font-size: 10px; }
  .reset-btn { padding: 4px 8px; font-size: 10px; }
  .selection-badge { font-size: 11px; padding: 5px 10px; }
  .selection-icon { font-size: 14px; }
  .heatmap-legend { font-size: 10px; }
  .heatmap-gradient { width: 60px; height: 8px; }
  .hand-selector-container { flex-direction: column; gap: 8px; }
  .hand-divider { transform: rotate(90deg); }
  .analog-ring { width: 80px; height: 80px; }
  .finger-dot { width: 20px; height: 20px; }
  .finger-letter { font-size: 8px; }
  .hand-action-btn { padding: 4px 8px; font-size: 10px; }
  .side-panel { max-height: 60vh; }
  .hand-face-map { flex-direction: column; align-items: center; }
}