/* ========================================================================
   three-overlay.css
   -----------------
   Estilos específicos para el canvas Three.js + UI superpuesta.
   ======================================================================== */

.hero-canvas-wrapper {
  position: absolute;
  inset: 0;
  z-index: var(--z-canvas);
  pointer-events: none;
  overflow: hidden;
}

.hero-canvas-wrapper canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* Vignette para añadir profundidad sobre el canvas — focaliza la vista */
.hero-canvas-wrapper::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at center, transparent 30%, rgba(250, 249, 246, 0.4) 100%),
    linear-gradient(180deg, transparent 60%, var(--color-bg) 100%);
  pointer-events: none;
}

/* Custom cursor (solo desktop con pointer fino) */
.custom-cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 32px;
  height: 32px;
  border: 1px solid var(--color-accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: var(--z-cursor);
  transform: translate(-50%, -50%);
  transition:
    width 0.3s var(--ease-luxury),
    height 0.3s var(--ease-luxury),
    background 0.2s var(--ease-luxury),
    opacity 0.2s var(--ease-luxury);
  mix-blend-mode: difference;
  opacity: 0;
}

.custom-cursor::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--color-accent);
  transform: scale(0.2);
  transition: transform 0.3s var(--ease-luxury);
}

.custom-cursor.is-active {
  opacity: 1;
}

.custom-cursor.is-hover {
  width: 60px;
  height: 60px;
  background: rgba(156, 132, 74, 0.1);
}

.custom-cursor.is-hover::before {
  transform: scale(0);
}

@media (hover: none), (pointer: coarse) {
  .custom-cursor { display: none !important; }
}

/* Tilt effect en cards (transform via CSS variables seteadas por JS) */
.tilt-card {
  transform: perspective(1000px) rotateX(var(--ry, 0deg)) rotateY(var(--rx, 0deg));
  transition: transform 0.3s var(--ease-luxury);
  will-change: transform;
}

.tilt-card.is-tilting {
  transition: transform 0.1s linear;
}

/* Loading state mientras carga Three.js */
.hero-loader {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  z-index: 2;
  transition: opacity 0.6s var(--ease-luxury);
}

.hero-loader.is-hidden {
  opacity: 0;
  pointer-events: none;
}

.hero-loader-orb {
  width: 60px;
  height: 60px;
  border: 1px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 1.4s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Fallback estático (móviles antiguos sin WebGL2 / poca RAM) */
.hero-fallback {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 40%, rgba(156, 132, 74, 0.18), transparent 50%),
    radial-gradient(circle at 70% 60%, rgba(156, 132, 74, 0.10), transparent 50%),
    linear-gradient(135deg, var(--color-bg) 0%, #F5F2E8 100%);
  z-index: 1;
}

.hero-fallback::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(156, 132, 74, 0.06) 2px, transparent 4px),
    radial-gradient(circle at 80% 70%, rgba(156, 132, 74, 0.05) 2px, transparent 4px),
    radial-gradient(circle at 60% 40%, rgba(156, 132, 74, 0.04) 1px, transparent 3px);
  background-size: 100% 100%, 100% 100%, 100% 100%;
  animation: floatBokeh 20s var(--ease-luxury) infinite alternate;
}

@keyframes floatBokeh {
  0%   { transform: translate(0, 0); }
  100% { transform: translate(20px, -10px); }
}

/* Sound toggle (opt-in, desactivado por default — placeholder UI) */
.sound-toggle {
  position: fixed;
  bottom: var(--sp-6);
  right: var(--sp-6);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  display: none; /* off by default; enable via JS if implemented */
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: var(--z-overlay);
  font-size: 1.2rem;
  color: var(--color-text-dim);
  box-shadow: var(--shadow-md);
  transition: all var(--dur-fast) var(--ease-luxury);
}

[dir="rtl"] .sound-toggle {
  right: auto;
  left: var(--sp-6);
}

.sound-toggle:hover,
.sound-toggle:focus-visible {
  border-color: var(--color-accent);
  color: var(--color-accent-deep);
  outline: none;
}