/* ============================================
   three-d.css - Premium 3D Effects & Visual Polish
   ============================================ */

/* Glass morphism utility */
.glass-deep {
  background: color-mix(in srgb, var(--color-card), transparent 40%);
  backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
  border: 1px solid color-mix(in srgb, var(--color-line), transparent 55%);
  box-shadow:
    0 0.5rem 2rem rgba(0, 0, 0, 0.06),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

/* Typing cursor */
@keyframes cursor-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Animated section divider waves */
.section-wave-divider {
  position: relative;
  width: 100%;
  height: 60px;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
}

.section-wave-divider svg {
  position: absolute;
  width: 200%;
  height: 100%;
  fill: color-mix(in srgb, var(--color-primary), transparent 85%);
  animation: wave-drift 25s linear infinite;
}

.section-wave-divider svg:nth-child(2) {
  fill: color-mix(in srgb, var(--color-accent), transparent 88%);
  opacity: 0.5;
  animation-direction: reverse;
  animation-duration: 35s;
}

@keyframes wave-drift {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* Animated gradient text */
.text-gradient-anim {
  background: linear-gradient(
    135deg,
    var(--color-primary-light),
    var(--color-accent-light),
    var(--color-primary),
    var(--color-accent),
    var(--color-primary-light)
  );
  background-size: 300% 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: text-gradient-flow 6s ease infinite;
}

@keyframes text-gradient-flow {
  0%, 100% { background-position: 0% 50%; }
  25% { background-position: 100% 0%; }
  50% { background-position: 100% 100%; }
  75% { background-position: 0% 100%; }
}

/* Glow pulse on section heading underline */
.glow-pulse::after {
  content: '';
  position: absolute;
  bottom: -4px;
  inset-inline-start: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary-light), var(--color-accent-light));
  border-radius: 3px;
  box-shadow:
    0 0 10px var(--color-primary-light),
    0 0 20px color-mix(in srgb, var(--color-primary-light), transparent 50%);
  animation: glow-pulse-width 3s ease-in-out infinite;
}

@keyframes glow-pulse-width {
  0%, 100% { transform: scaleX(0.3); opacity: 0.6; }
  50% { transform: scaleX(1); opacity: 1; }
}

/* 3D floating action button */
.float-action-3d {
  transition: transform 300ms var(--ease-bounce), box-shadow 300ms var(--ease-smooth);
}

.float-action-3d:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow:
    0 1rem 2.5rem rgba(15, 95, 89, 0.25),
    0 0.5rem 1rem rgba(15, 95, 89, 0.1);
}

/* Card edge light sweep */
.card-edge-light {
  position: relative;
  overflow: hidden;
}

.card-edge-light::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.06), transparent);
  transform: skewX(-20deg);
  transition: left 0.8s var(--ease-smooth);
  pointer-events: none;
}

.card-edge-light:hover::before { left: 150%; }

/* Image reveal 3D */
.img-reveal-3d {
  opacity: 0;
  transform: perspective(800px) translateZ(-40px) translateY(20px) rotateX(3deg) scale(0.95);
  transition: transform 0.8s var(--ease-smooth), opacity 0.8s var(--ease-smooth);
}

.img-reveal-3d.is-visible {
  opacity: 1;
  transform: perspective(800px) translateZ(0) translateY(0) rotateX(0) scale(1);
}

/* 3D button depth */
.btn-depth {
  position: relative;
  transform-style: preserve-3d;
  transition: transform 200ms var(--ease-smooth);
}

.btn-depth::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: var(--color-primary-dark);
  transform: translateZ(-6px);
  z-index: -1;
  opacity: 0.3;
  filter: blur(2px);
}

.btn-depth:hover { transform: translateY(-2px) translateZ(4px); }
.btn-depth:active { transform: translateY(0) translateZ(0); }

/* Floating 3D badge */
.badge-3d-float {
  animation: badge-float-3d 4s var(--ease-smooth) infinite;
}

@keyframes badge-float-3d {
  0%, 100% { transform: perspective(400px) translateZ(0) translateY(0); box-shadow: 0 0.25rem 0.75rem rgba(15, 95, 89, 0.2); }
  50% { transform: perspective(400px) translateZ(10px) translateY(-4px); box-shadow: 0 0.5rem 1.5rem rgba(15, 95, 89, 0.3); }
}

/* Glass inner glow */
.glass-inner-glow::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(255, 255, 255, 0.08), transparent 50%),
    radial-gradient(ellipse at 80% 80%, color-mix(in srgb, var(--color-primary-light), transparent 85%), transparent 50%);
  pointer-events: none;
  border-radius: inherit;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .text-gradient-anim,
  .glow-pulse::after,
  .card-edge-light::before,
  .badge-3d-float,
  .section-wave-divider svg {
    animation: none !important;
    transition: none !important;
  }
  .img-reveal-3d,
  .float-action-3d,
  .btn-depth {
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}