/* ============================================
   ANIMATIONS — Keyframes, Transitions, States
   ============================================ */

/* === REVEAL STATES (antes de GSAP) === */
/* Single-element animations start hidden */
[data-animate="fade-up"],
[data-animate="fade-down"],
[data-animate="fade-left"],
[data-animate="fade-right"],
[data-animate="scale-up"],
[data-animate="blur-in"],
[data-animate="rotate-in"] {
  opacity: 0;
}

[data-animate="fade-up"] {
  transform: translateY(50px);
}

[data-animate="fade-down"] {
  transform: translateY(-50px);
}

[data-animate="fade-left"] {
  transform: translateX(50px);
}

[data-animate="fade-right"] {
  transform: translateX(-50px);
}

[data-animate="scale-up"] {
  transform: scale(0.9);
}

[data-animate="blur-in"] {
  filter: blur(15px);
}

[data-animate="rotate-in"] {
  transform: perspective(1000px) rotateX(-10deg);
}

/* Stagger children */
[data-animate="stagger-up"] > * {
  opacity: 0;
  transform: translateY(30px);
}

[data-animate="stagger-scale"] > * {
  opacity: 0;
  transform: scale(0.85);
}

/* === HOVER EFFECTS === */
.hover-lift {
  transition: transform var(--duration-normal) var(--ease-out-expo),
              box-shadow var(--duration-normal) var(--ease-smooth);
}

.hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.hover-glow {
  transition: box-shadow var(--duration-normal) var(--ease-smooth);
}

.hover-glow:hover {
  box-shadow: var(--shadow-glow);
}

.hover-scale {
  transition: transform var(--duration-normal) var(--ease-out-back);
}

.hover-scale:hover {
  transform: scale(1.03);
}

/* === IMAGE REVEAL === */
.img-reveal {
  position: relative;
  overflow: hidden;
}

.img-reveal::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-primary);
  transform-origin: left;
}

.img-reveal img {
  transform: scale(1.2);
  transition: transform 1.2s var(--ease-out-expo);
}

.img-reveal.revealed img {
  transform: scale(1);
}

/* === TEXT ANIMATIONS === */
.char-reveal .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(100%);
}

.word-reveal .word {
  display: inline-block;
  overflow: hidden;
}

.word-reveal .word-inner {
  display: inline-block;
  transform: translateY(100%);
}

/* === LINE ANIMATION === */
.line-draw {
  position: relative;
}

.line-draw::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--duration-slow) var(--ease-out-expo);
}

.line-draw:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* === PULSE === */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(var(--color-primary-rgb), 0.4); }
  50% { box-shadow: 0 0 0 15px rgba(var(--color-primary-rgb), 0); }
}

/* === FLOAT === */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* === SHIMMER === */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.shimmer {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(var(--color-primary-rgb), 0.08) 50%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: shimmer 3s infinite;
}

/* === PARALLAX DEPTH === */
[data-speed] {
  will-change: transform;
}

/* === GRAIN OVERLAY === */
.grain-overlay::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9998;
  pointer-events: none;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
}

/* === REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
  [data-animate] {
    opacity: 1;
    transform: none;
    filter: none;
  }

  [data-animate="stagger-up"] > *,
  [data-animate="stagger-scale"] > * {
    opacity: 1;
    transform: none;
  }

  .custom-cursor {
    display: none !important;
  }
}