:root {
  --bg-color: #07080c;
  --panel-bg: rgba(14, 17, 23, 0.85);
  --panel-border: rgba(255, 255, 255, 0.12);
  --accent-color: #00e5ff;
  --accent-hover: #33ebff;
  --text-main: #f0f4f8;
  --text-muted: #8a99ad;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body, html {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-color);
  font-family: var(--font-sans);
  color: var(--text-main);
}

#app {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Canvas Viewport */
#orbit-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  cursor: grab;
}
#orbit-canvas:active {
  cursor: grabbing;
}

/* Top HUD */
.hud-top {
  position: absolute;
  top: 16px;
  left: 16px;
  right: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 10;
  pointer-events: none;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--panel-bg);
  backdrop-filter: blur(12px);
  padding: 10px 18px;
  border-radius: 12px;
  border: 1px solid var(--panel-border);
  pointer-events: auto;
}

.brand .icon {
  font-size: 24px;
}

.brand h1 {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.8px;
  color: #ffffff;
}

.brand p {
  font-size: 10px;
  color: var(--text-muted);
}

.time-hud {
  background: var(--panel-bg);
  backdrop-filter: blur(12px);
  padding: 10px 18px;
  border-radius: 12px;
  border: 1px solid var(--panel-border);
  text-align: right;
  pointer-events: auto;
}

.time-hud .label {
  font-size: 9px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 1px;
}

#hud-date-display {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--accent-color);
  text-shadow: 0 0 10px rgba(0, 229, 255, 0.4);
}

#hud-time-details {
  font-size: 10px;
  color: var(--text-muted);
}

/* Left Control Panel */
.control-panel {
  position: absolute;
  top: 80px;
  left: 16px;
  width: 290px;
  max-height: calc(100vh - 170px);
  overflow-y: auto;
  background: var(--panel-bg);
  backdrop-filter: blur(16px);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  padding: 16px;
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.panel-section h3 {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.button-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.btn-preset {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-main);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: left;
}

.btn-preset:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-preset.active {
  background: rgba(0, 229, 255, 0.15);
  border-color: var(--accent-color);
  color: var(--accent-color);
  font-weight: 600;
}

/* Search & Trail Controls */
.search-box {
  position: relative;
  margin-bottom: 8px;
}

#input-search-body {
  width: 100%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffffff;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 11px;
  outline: none;
}

#input-search-body:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 8px rgba(0, 229, 255, 0.3);
}

.search-dropdown {
  position: absolute;
  top: 36px;
  left: 0;
  right: 0;
  max-height: 160px;
  overflow-y: auto;
  background: #0e1117;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  z-index: 50;
}

.search-dropdown.hidden { display: none; }

.search-item {
  padding: 6px 10px;
  font-size: 11px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.search-item:hover {
  background: rgba(0, 229, 255, 0.15);
  color: var(--accent-color);
}

.trail-options {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 6px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--text-muted);
  cursor: pointer;
}

.checkbox-label input {
  accent-color: var(--accent-color);
}

/* Appearance Controls */
.slider-control-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.slider-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.slider-label {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-main);
}

.val-tag {
  font-family: var(--font-mono);
  color: var(--accent-color);
  font-weight: 600;
}

/* Toggle Switch */
.toggle-switch {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 11px;
  color: var(--text-main);
}

.toggle-switch input {
  display: none;
}

.toggle-switch .slider {
  width: 34px;
  height: 18px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 10px;
  position: relative;
  transition: 0.3s;
}

.toggle-switch .slider::before {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #ffffff;
  transition: 0.3s;
}

.toggle-switch input:checked + .slider {
  background: var(--accent-color);
}

.toggle-switch input:checked + .slider::before {
  transform: translateX(16px);
}

/* Filters Grid */
.filters-grid {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.filter-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  padding: 4px 8px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.03);
}

.filter-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.color-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.count-badge {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-muted);
}

/* Action Buttons */
.btn-primary {
  width: 100%;
  background: linear-gradient(135deg, #00e5ff, #0088ff);
  border: none;
  color: #000;
  padding: 10px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(0, 229, 255, 0.4);
}

.rec-dot {
  width: 8px;
  height: 8px;
  background: #ff3366;
  border-radius: 50%;
}

.recording .rec-dot {
  animation: pulse 1s infinite alternate;
}

@keyframes pulse {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(1.4); opacity: 0.5; }
}

.btn-secondary {
  width: 100%;
  margin-top: 6px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-main);
  padding: 8px;
  border-radius: 8px;
  font-size: 11px;
  cursor: pointer;
}

/* Info Box */
.info-card {
  position: absolute;
  top: 80px;
  right: 16px;
  width: 240px;
  background: var(--panel-bg);
  backdrop-filter: blur(16px);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 14px;
  z-index: 10;
}

.info-card.hidden {
  display: none;
}

.info-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 6px;
}

.info-header h4 {
  font-size: 14px;
  color: var(--accent-color);
}

.info-row {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  margin-bottom: 6px;
}

.info-row .lbl { color: var(--text-muted); }
.info-row .val { font-family: var(--font-mono); font-weight: 600; }

/* Timeline Bar */
.timeline-bar {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  background: var(--panel-bg);
  backdrop-filter: blur(16px);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  padding: 10px 18px;
  z-index: 10;
}

.controls-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.btn-icon {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.2s;
}

.btn-icon:hover {
  background: var(--accent-color);
  color: #000;
}

.flex-1 { flex: 1; }

input[type=range] {
  width: 100%;
  accent-color: var(--accent-color);
  cursor: pointer;
}

.speed-control {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--text-muted);
  width: 160px;
}

.speed-control input { width: 80px; }
#speed-val { font-family: var(--font-mono); color: var(--accent-color); }