/* Sensory-Friendly Calming Theme & Interactive Large 3D Sensory Cube */

:root {
  --primary-teal: #0d9488;
  --bg-calm: #f8fafc;
  --cube-size: 310px; /* Large, clear, readable cube */
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background-color: var(--bg-calm);
  color: #1e293b;
  -webkit-font-smoothing: antialiased;
}

/* 3D Cube Scene & Perspectives */
.cube-scene {
  width: var(--cube-size);
  height: var(--cube-size);
  perspective: 900px;
  margin: 1.5rem auto;
}

.cube-3d {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.65s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.cube-face {
  position: absolute;
  width: var(--cube-size);
  height: var(--cube-size);
  border: 3px solid #cbd5e1;
  border-radius: 1.75rem;
  background: #ffffff;
  box-shadow: inset 0 0 25px rgba(0, 0, 0, 0.04), 0 12px 30px rgba(0, 0, 0, 0.08);
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  user-select: none;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

/* Face transforms for standard 6-sided geometry */
.face-front  { transform: rotateY(0deg) translateZ(calc(var(--cube-size) / 2)); }
.face-right  { transform: rotateY(90deg) translateZ(calc(var(--cube-size) / 2)); }
.face-back   { transform: rotateY(180deg) translateZ(calc(var(--cube-size) / 2)); }
.face-left   { transform: rotateY(-90deg) translateZ(calc(var(--cube-size) / 2)); }
.face-top    { transform: rotateX(90deg) translateZ(calc(var(--cube-size) / 2)); }
.face-bottom { transform: rotateX(-90deg) translateZ(calc(var(--cube-size) / 2)); }

/* Tactile quadrant buttons directly on the cube face */
.cube-quadrant-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 0.4rem;
  border-radius: 1rem;
  border: 2px solid #e2e8f0;
  background-color: #f8fafc;
  cursor: pointer;
  transition: all 0.15s ease-in-out;
  text-align: center;
}

.cube-quadrant-btn:hover {
  transform: scale(1.02);
  border-color: #94a3b8;
}

.cube-quadrant-btn:active {
  transform: scale(0.97);
}

.cube-quadrant-btn.active-teal {
  background-color: #0d9488 !important;
  border-color: #0f766e !important;
  color: #ffffff !important;
  box-shadow: 0 4px 10px rgba(13, 148, 136, 0.3);
}

.cube-quadrant-btn.active-amber {
  background-color: #d97706 !important;
  border-color: #b45309 !important;
  color: #ffffff !important;
  box-shadow: 0 4px 10px rgba(217, 119, 6, 0.3);
}

.cube-quadrant-btn.active-indigo {
  background-color: #4f46e5 !important;
  border-color: #4338ca !important;
  color: #ffffff !important;
  box-shadow: 0 4px 10px rgba(79, 70, 229, 0.3);
}

.cube-quadrant-btn.active-sky {
  background-color: #0284c7 !important;
  border-color: #0369a1 !important;
  color: #ffffff !important;
  box-shadow: 0 4px 10px rgba(2, 132, 199, 0.3);
}

/* Hard stop active pulse */
@keyframes emergency-pulse {
  0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7); }
  70% { box-shadow: 0 0 0 16px rgba(239, 68, 68, 0); }
  100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

.emergency-active {
  animation: emergency-pulse 1.2s infinite;
}

/* Perspective Column Headers */
.perspective-badge-child {
  background: linear-gradient(135deg, #0d9488 0%, #14b8a6 100%);
  color: white;
}

.perspective-badge-parent {
  background: linear-gradient(135deg, #4338ca 0%, #6366f1 100%);
  color: white;
}