/* ==========================================================================
   css/cross_section.css
   Générateur de Profil en Travers / Coupe de Terrain 2D
   CAD / GIS Section Profile Drawer & Interactive Chart
   ========================================================================== */

#cross-section-panel {
  position: absolute;
  bottom: 0;
  left: 300px; /* Aligned with sidebar */
  right: 0;
  height: 290px;
  background: rgba(11, 17, 32, 0.96);
  backdrop-filter: blur(8px);
  border-top: 2px solid var(--primary-cyan, #06b6d4);
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.6);
  z-index: 90;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), height 0.2s ease;
  transform: translateY(100%); /* Hidden by default */
}

#cross-section-panel.open {
  transform: translateY(0);
}

#cross-section-panel.collapsed {
  height: 42px;
}

/* Header & Controls */
.cs-header {
  height: 42px;
  min-height: 42px;
  padding: 0 16px;
  background: rgba(15, 23, 42, 0.95);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  user-select: none;
}

.cs-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.cs-title {
  font-size: 13px;
  font-weight: 700;
  color: #f8fafc;
  display: flex;
  align-items: center;
  gap: 6px;
}

.cs-badge {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
  background: rgba(6, 182, 212, 0.15);
  border: 1px solid rgba(6, 182, 212, 0.4);
  color: #38bdf8;
  font-family: monospace;
}

.cs-metrics {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 11px;
  color: var(--text-muted, #94a3b8);
}

.cs-metrics strong {
  color: #f1f5f9;
}

.cs-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.cs-btn {
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #cbd5e1;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 11px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all 0.15s ease;
}

.cs-btn:hover {
  background: rgba(51, 65, 85, 0.9);
  color: #f8fafc;
  border-color: rgba(6, 182, 212, 0.5);
}

.cs-btn.active {
  background: rgba(6, 182, 212, 0.25);
  border-color: #06b6d4;
  color: #38bdf8;
}

.cs-btn-close {
  background: transparent;
  border: none;
  color: #94a3b8;
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
}

.cs-btn-close:hover {
  color: #ef4444;
  background: rgba(239, 68, 68, 0.15);
}

/* Sub-toolbar with presets and settings */
.cs-subbar {
  padding: 4px 16px;
  background: rgba(15, 23, 42, 0.6);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  color: #94a3b8;
}

.cs-presets {
  display: flex;
  align-items: center;
  gap: 6px;
}

.cs-preset-pill {
  font-size: 10px;
  padding: 3px 8px;
  border-radius: 12px;
  background: rgba(30, 41, 59, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #cbd5e1;
  cursor: pointer;
  transition: all 0.15s ease;
}

.cs-preset-pill:hover {
  background: rgba(6, 182, 212, 0.2);
  border-color: #06b6d4;
  color: #38bdf8;
}

.cs-preset-pill.active {
  background: rgba(6, 182, 212, 0.25);
  border-color: #06b6d4;
  color: #38bdf8;
  font-weight: 600;
}

/* Canvas Area */
.cs-body {
  flex: 1;
  position: relative;
  overflow: hidden;
  display: flex;
}

#section-canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: crosshair;
}

/* Floating Cross-Section Tooltip */
#cs-tooltip {
  position: absolute;
  pointer-events: none;
  display: none;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid #38bdf8;
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 11px;
  color: #f8fafc;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.6);
  z-index: 100;
  white-space: nowrap;
}

#cs-tooltip .cs-tt-title {
  font-weight: 700;
  color: #38bdf8;
  margin-bottom: 3px;
}

/* Prompt Banner when in Line Cut Drafting Mode */
#cs-draft-banner {
  position: absolute;
  top: 60px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(15, 23, 42, 0.92);
  border: 1px solid #06b6d4;
  border-radius: 20px;
  padding: 8px 18px;
  color: #f8fafc;
  font-size: 12px;
  font-weight: 600;
  display: none;
  align-items: center;
  gap: 10px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  z-index: 80;
  animation: pulse-border 2s infinite ease-in-out;
}

#cs-draft-banner .btn-cancel-draft {
  background: rgba(239, 68, 68, 0.2);
  border: 1px solid #ef4444;
  color: #fca5a5;
  border-radius: 12px;
  padding: 2px 8px;
  font-size: 10px;
  cursor: pointer;
}

@keyframes pulse-border {
  0%, 100% { border-color: #06b6d4; }
  50% { border-color: #38bdf8; box-shadow: 0 0 12px rgba(6, 182, 212, 0.5); }
}