/* ==========================================================================
   ANIMATIONS — Concurso Procompetencia 2026
   Keyframes, reveal on scroll, micro-interacciones
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Reveal on scroll (IntersectionObserver en main.js)
   -------------------------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.65s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Variantes de dirección */
.reveal--left {
  opacity: 0;
  transform: translateX(-28px);
  transition:
    opacity 0.65s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal--left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal--right {
  opacity: 0;
  transform: translateX(28px);
  transition:
    opacity 0.65s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal--right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal--scale {
  opacity: 0;
  transform: scale(0.92);
  transition:
    opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.reveal--scale.is-visible {
  opacity: 1;
  transform: scale(1);
}

/* Stagger (delay progresivo para grids) */
.reveal--delay-1 { transition-delay: 0.1s; }
.reveal--delay-2 { transition-delay: 0.2s; }
.reveal--delay-3 { transition-delay: 0.3s; }
.reveal--delay-4 { transition-delay: 0.4s; }
.reveal--delay-5 { transition-delay: 0.5s; }
.reveal--delay-6 { transition-delay: 0.6s; }

/* Las animaciones horizontales se convierten en verticales donde el layout
   es de una sola columna (≤1024px) para evitar desbordamiento horizontal */
@media (max-width: 1024px) {
  .reveal--left,
  .reveal--right {
    transform: translateY(28px);
  }

  .reveal--left.is-visible,
  .reveal--right.is-visible {
    transform: translateY(0);
  }
}

/* Respeta preferencia de movimiento reducido */
@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal--left,
  .reveal--right,
  .reveal--scale {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* --------------------------------------------------------------------------
   2. Keyframes globales
   -------------------------------------------------------------------------- */

/* Fade in */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* Fade in hacia arriba */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(32px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Fade in hacia abajo */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scale in */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.88);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Pulso suave */
@keyframes pulseSoft {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(222, 8, 9, 0.3);
  }
  50% {
    box-shadow: 0 0 0 12px rgba(222, 8, 9, 0);
  }
}

/* Bounce in */
@keyframes bounceIn {
  0%   { transform: scale(0.8); opacity: 0; }
  60%  { transform: scale(1.06); opacity: 1; }
  80%  { transform: scale(0.97); }
  100% { transform: scale(1); }
}

/* Shimmer (skeleton loading) */
@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}

/* Countdown flip */
@keyframes countFlip {
  0%   { transform: rotateX(0deg); }
  50%  { transform: rotateX(90deg); opacity: 0.5; }
  100% { transform: rotateX(0deg); opacity: 1; }
}

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

/* Float (hero decorative elements) */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-16px); }
}

/* Gradient shift (hero background) */
@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* --------------------------------------------------------------------------
   3. Clases de animación directa (sin IntersectionObserver)
   -------------------------------------------------------------------------- */

.animate-fadeIn {
  animation: fadeIn 0.5s ease forwards;
}

.animate-fadeInUp {
  animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.animate-fadeInDown {
  animation: fadeInDown 0.5s ease forwards;
}

.animate-scaleIn {
  animation: scaleIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.animate-bounceIn {
  animation: bounceIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

/* Helpers de delay para secuencias */
.delay-100 { animation-delay: 0.1s; animation-fill-mode: both; }
.delay-200 { animation-delay: 0.2s; animation-fill-mode: both; }
.delay-300 { animation-delay: 0.3s; animation-fill-mode: both; }
.delay-400 { animation-delay: 0.4s; animation-fill-mode: both; }
.delay-500 { animation-delay: 0.5s; animation-fill-mode: both; }
.delay-600 { animation-delay: 0.6s; animation-fill-mode: both; }
.delay-700 { animation-delay: 0.7s; animation-fill-mode: both; }
.delay-800 { animation-delay: 0.8s; animation-fill-mode: both; }

/* --------------------------------------------------------------------------
   4. Micro-interacciones de componentes
   -------------------------------------------------------------------------- */

/* Hover lift en cards */
.card--hover {
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

.card--hover:hover {
  transform: translateY(-4px);
}

/* Prize card: primer lugar tiene pulso */
.card--prize.is-first .prize__amount {
  animation: pulseSoft 2.5s ease-in-out infinite;
}

/* Botón shimmer effect al hover */
.btn--accent::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    transparent 40%,
    rgba(255,255,255,0.18) 50%,
    transparent 60%
  );
  background-size: 200% 100%;
  background-position: 200% center;
  transition: background-position 0.5s ease;
}

.btn--accent:hover::after {
  background-position: -200% center;
}

/* Navbar scroll transition */
.site-header {
  transition:
    background 0.3s ease,
    box-shadow 0.3s ease,
    backdrop-filter 0.3s ease;
}

/* Timeline dot pulse cuando es activo */
.timeline__item.is-active .timeline__dot {
  animation: pulseSoft 2s ease-in-out infinite;
}

/* Countdown number update flash */
.countdown__num.is-updated {
  animation: countFlip 0.3s ease;
}

/* Accordion icon rotation */
.accordion__icon {
  transition:
    background 0.2s ease,
    transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Audio player visualizer dots (decorativo) */
.audio-player__btn--play.is-playing {
  animation: pulseSoft 1.5s ease-in-out infinite;
}

/* Hero floating shapes — anillos geométricos elegantes */
.hero__shape {
  position: absolute;
  border-radius: var(--radius-full);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.08);
  animation: float 6s ease-in-out infinite;
}

.hero__shape:nth-child(1) {
  box-shadow: inset 0 0 60px rgba(255, 255, 255, 0.02);
}

.hero__shape:nth-child(2) {
  animation-delay: 2s;
  animation-duration: 8s;
  border-color: rgba(222, 8, 9, 0.12);
}

.hero__shape:nth-child(3) {
  animation-delay: 4s;
  animation-duration: 7s;
  border-width: 2px;
  border-color: rgba(255, 255, 255, 0.05);
}

/* Skeleton loader */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-surface-alt) 25%,
    var(--color-border-light) 50%,
    var(--color-surface-alt) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

/* Scroll top button */
.scroll-top {
  transition:
    opacity 0.25s ease,
    visibility 0.25s ease,
    transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1),
    background 0.2s ease;
}

/* Badge pulse para deadline urgente */
.badge--deadline {
  animation: pulseSoft 1.8s ease-in-out infinite;
}

/* Image hover zoom (galería) */
.gallery-img-wrap {
  overflow: hidden;
  border-radius: var(--radius-md);
}

.gallery-img-wrap img {
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-img-wrap:hover img {
  transform: scale(1.06);
}

/* Focus visible para accesibilidad */
:focus-visible {
  outline: 3px solid var(--color-primary-light);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Page transition (fade entre páginas si se implementa) */
.page-transition-enter {
  animation: fadeIn 0.4s ease forwards;
}