/* ============================================================
   ANIMATIONS.CSS — Keyframes, reveal, microinteracciones
   ============================================================ */

/* ---- Reveal por scroll ---- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--delay-1 { transition-delay: 80ms; }
.reveal--delay-2 { transition-delay: 160ms; }
.reveal--delay-3 { transition-delay: 240ms; }
.reveal--delay-4 { transition-delay: 320ms; }
.reveal--delay-5 { transition-delay: 400ms; }

.reveal--left {
  transform: translateX(-24px);
}

.reveal--left.visible {
  transform: translateX(0);
}

.reveal--right {
  transform: translateX(24px);
}

.reveal--right.visible {
  transform: translateX(0);
}

/* ---- Fade solo (sin desplazamiento) ---- */
.fade-in {
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-out);
}

.fade-in.visible {
  opacity: 1;
}

/* ---- Carga inicial de la página ---- */
@keyframes pageEnter {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero__label {
  animation: pageEnter var(--duration-slow) var(--ease-out) 0.1s both;
}

.hero__title {
  animation: pageEnter var(--duration-slow) var(--ease-out) 0.25s both;
}

.hero__subtitle {
  animation: pageEnter var(--duration-slow) var(--ease-out) 0.4s both;
}

.hero .form-inline,
.hero .form-large {
  animation: pageEnter var(--duration-slow) var(--ease-out) 0.55s both;
}

.hero__meta {
  animation: pageEnter var(--duration-slow) var(--ease-out) 0.7s both;
}

/* ---- Pulso suave para accent ---- */
@keyframes gentlePulse {
  0%, 100% { opacity: 0.6; }
  50%       { opacity: 1; }
}

.accent-pulse {
  animation: gentlePulse 3s ease-in-out infinite;
}

/* ---- Línea decorativa que se expande ---- */
@keyframes lineGrow {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

.line-grow {
  transform-origin: left;
  animation: lineGrow 0.8s var(--ease-out) both;
}

/* ---- Canvas fade in ---- */
@keyframes canvasFadeIn {
  from { opacity: 0; }
  to   { opacity: 0.7; }
}

#bg-canvas {
  animation: canvasFadeIn 2.5s var(--ease-out) 0.3s both;
}

/* ---- Hover en cards: brillo de borde ---- */
.card::before,
.card-product::before,
.email-preview::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(400px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(184, 155, 114, 0.06),
    transparent 60%
  );
  transition: opacity var(--duration-normal) var(--ease-gentle);
}

.card,
.card-product,
.email-preview {
  position: relative;
}

.card:hover::before,
.card-product:hover::before,
.email-preview:hover::before {
  opacity: 1;
}

/* ---- Scroll suave al ancla ---- */
html {
  scroll-behavior: smooth;
}

/* ---- Nav entrada ---- */
@keyframes navSlideDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.nav {
  animation: navSlideDown 0.6s var(--ease-out) 0.15s both;
}

/* ---- Stagger para grids ---- */
.grid-3 .card:nth-child(1),
.grid-4 .card:nth-child(1),
.grid-3 .card-resource:nth-child(1) { transition-delay: 0ms; }

.grid-3 .card:nth-child(2),
.grid-4 .card:nth-child(2),
.grid-3 .card-resource:nth-child(2) { transition-delay: 80ms; }

.grid-3 .card:nth-child(3),
.grid-4 .card:nth-child(3),
.grid-3 .card-resource:nth-child(3) { transition-delay: 160ms; }

.grid-4 .card:nth-child(4) { transition-delay: 240ms; }

/* ---- Cursor personalizado (sutil) ---- */
@media (pointer: fine) {
  body {
    cursor: default;
  }

  a, button, [role="button"] {
    cursor: pointer;
  }
}

/* ---- Cursor personalizado ---- */
.cursor-dot {
  position: fixed;
  top: 0;
  left: 0;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.7;
  transition: width 220ms var(--ease-out),
              height 220ms var(--ease-out),
              opacity 220ms var(--ease-out),
              background 220ms var(--ease-out);
  will-change: transform;
}

.cursor-dot--hover {
  width: 22px;
  height: 22px;
  opacity: 0.25;
  background: var(--color-accent-light);
}

/* ---- Overlay menú móvil ---- */
.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(13, 12, 10, 0.72);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 98;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-slow) var(--ease-gentle);
}

.mobile-nav-overlay.visible {
  opacity: 1;
  pointer-events: all;
}

/* ---- Nav links versión móvil abierta ---- */
@media (max-width: 500px) {
  .nav__links.mobile-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 72vw;
    max-width: 300px;
    background: var(--color-bg-secondary);
    border-left: 1px solid var(--color-border);
    z-index: 99;
    padding: calc(var(--nav-height) + var(--space-8)) var(--space-8) var(--space-8);
    gap: var(--space-6);
    animation: slideInRight var(--duration-slow) var(--ease-out) both;
  }

  .nav__links.mobile-open .nav__link {
    font-size: var(--text-base);
    letter-spacing: 0.06em;
    color: var(--color-text-muted);
  }
}

@keyframes slideInRight {
  from { transform: translateX(100%); }
  to   { transform: translateX(0); }
}

/* ---- Grain texture sutil sobre el fondo ---- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.028;
  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-size: 200px 200px;
}

/* ---- Line decorativa en secciones ---- */
.section__label::before {
  content: '';
  display: inline-block;
  width: 16px;
  height: 1px;
  background: var(--color-accent);
  vertical-align: middle;
  margin-right: var(--space-3);
  opacity: 0.7;
}

/* ---- Glassmorphism en cards hover ---- */
.card:hover,
.email-preview:hover {
  background: rgba(26, 23, 18, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* ---- Hover link con underline deslizante ---- */
.footer__nav-link {
  position: relative;
  display: inline-block;
}

.footer__nav-link::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--duration-normal) var(--ease-out);
}

.footer__nav-link:hover::after {
  width: 100%;
}

/* ---- Producto tilt transición suave ---- */
.card-product {
  transition: border-color var(--duration-normal) var(--ease-gentle),
              box-shadow var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
  will-change: transform;
}

/* ---- Reduce motion ---- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal,
  .fade-in {
    opacity: 1;
    transform: none;
  }

  #bg-canvas {
    display: none;
  }
}