/* ══════════════════════════════════════════════════════════════
   ANIMATIONS — @keyframes + animation utilities
   ══════════════════════════════════════════════════════════════ */

/* ─── Preloader ─── */
.preloader {
    position: fixed; inset: 0; z-index: var(--z-preloader);
    background: var(--color-navy-dark); display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: var(--space-6);
    transition: opacity 0.5s ease, visibility 0.5s ease;
}
.preloader.is-done { opacity: 0; visibility: hidden; pointer-events: none; }
.preloader__psi {
    font-family: var(--font-display); font-size: 80px;
    background: var(--gradient-psi); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text; animation: psi-appear 1.5s ease-out;
}
.preloader__bar { width: 200px; height: 3px; background: rgba(255,255,255,0.1); border-radius: 2px; overflow: hidden; }
.preloader__fill { height: 100%; background: var(--gradient-gold); border-radius: 2px; animation: fill-bar 2s ease-out forwards; }
@keyframes psi-appear { from { opacity: 0; transform: scale(0.5) rotate(-10deg); } to { opacity: 1; transform: scale(1) rotate(0); } }
@keyframes fill-bar { from { width: 0; } to { width: 100%; } }

/* ─── Hero ─── */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; overflow: hidden; background: var(--gradient-hero); }
.hero__canvas { position: absolute; inset: 0; z-index: 1; }
.hero__overlay { position: absolute; inset: 0; z-index: 2; }
.hero__content { position: relative; z-index: 3; width: 100%; }
.hero__poster { max-width: 500px; margin: 0 auto; border-radius: var(--radius-xl); box-shadow: var(--shadow-xl); }
.hero__title {
    font-family: var(--font-display); font-size: var(--fs-2xl); color: var(--color-white);
    text-align: center; margin-bottom: var(--space-4); line-height: 1.1;
}
.hero__subtitle { font-family: var(--font-heading); font-size: var(--fs-md); color: var(--color-gold); text-align: center; margin-bottom: var(--space-6); }
.hero__cta-group { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-4); }
@media (min-width: 768px) { .hero__title { font-size: var(--fs-4xl); } }
@media (min-width: 1024px) { .hero__title { font-size: var(--fs-5xl); } }

/* ─── Badge 25 años ─── */
.badge-25 {
    width: 100px; height: 100px; border-radius: 50%; border: 3px solid var(--color-gold);
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    background: rgba(0,25,50,0.8); backdrop-filter: blur(8px);
    animation: badge-rotate 20s linear infinite;
}
.badge-25__number { font-family: var(--font-display); font-size: var(--fs-2xl); font-weight: 700; color: var(--color-gold); line-height: 1; }
.badge-25__text { font-family: var(--font-heading); font-size: var(--fs-xs); color: rgba(255,255,255,0.7); text-transform: uppercase; }
@keyframes badge-rotate { to { transform: rotate(360deg); } }

/* ─── Shimmer ─── */
.shimmer { position: relative; overflow: hidden; }
.shimmer::after {
    content: ''; position: absolute; inset: 0; transform: translateX(-100%);
    background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.15) 50%, transparent 100%);
    animation: shimmer 3s ease-in-out infinite;
}
@keyframes shimmer { 0% { transform: translateX(-100%); } 100% { transform: translateX(100%); } }

/* ─── Flip Clock ─── */
.flip-clock { display: flex; justify-content: center; gap: var(--space-4); flex-wrap: wrap; }
.flip-clock__unit { display: flex; flex-direction: column; align-items: center; }
.flip-clock__card {
    width: 64px; height: 72px; background: var(--color-navy-deep); border-radius: var(--radius-md);
    display: flex; align-items: center; justify-content: center; position: relative;
    box-shadow: var(--shadow-md); overflow: hidden;
}
.flip-clock__card::after {
    content: ''; position: absolute; left: 0; right: 0; top: 50%;
    height: 1px; background: rgba(0,0,0,0.3);
}
.flip-clock__number {
    font-family: var(--font-heading); font-size: var(--fs-2xl); font-weight: 800;
    color: var(--color-gold); line-height: 1;
}
.flip-clock__label { font-family: var(--font-heading); font-size: var(--fs-xs); color: rgba(255,255,255,0.6); text-transform: uppercase; margin-top: var(--space-2); letter-spacing: 1px; }
@media (min-width: 768px) {
    .flip-clock__card { width: 80px; height: 90px; }
    .flip-clock__number { font-size: var(--fs-3xl); }
}

/* ─── Data animation attributes ─── */
[data-animation] { opacity: 0; }
[data-animation="fade-up"] { transform: translateY(40px); }
[data-animation="fade-down"] { transform: translateY(-40px); }
[data-animation="fade-left"] { transform: translateX(-40px); }
[data-animation="fade-right"] { transform: translateX(40px); }
[data-animation="fade-in"] { opacity: 0; /* just opacity, no transform */ }
[data-animation="scale-up"] { transform: scale(0.9); }
[data-animation="zoom-in"] { transform: scale(0.85); }
.is-animated { opacity: 1 !important; transform: none !important; }

/* ─── Fallback si la animación falla o se prefiere moción reducida ─── */
.reduced-motion [data-animation],
.no-js [data-animation] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
    animation: none !important;
}

@media (max-width: 991px) {
    /* En móvil, mostramos el contenido inicial del hero de inmediato 
       por seguridad en caso de que ScrollTrigger falle por cálculos de altura */
    .hero__content [data-animation] {
        opacity: 1 !important;
        transform: none !important;
    }
}

/* ─── Sponsors marquee ─── */
.sponsors-track { display: flex; gap: var(--space-12); animation: marquee 25s linear infinite; }
.sponsors-track:hover { animation-play-state: paused; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ─── Key dates ─── */
.key-date-card {
    border-left: 4px solid var(--color-gold);
    background: var(--color-white);
    padding: var(--space-5) var(--space-6);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-smooth);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    min-height: 110px;
}
.key-date-card:hover { transform: translateX(4px); box-shadow: var(--shadow-md); }
.key-date-card.is-past { opacity: 0.55; }
.key-date-card.is-closing .badge { animation: badge-pulse 1.5s ease-in-out infinite; }

/* Forzar color legible en título (ya que la card tiene fondo blanco sobre sección navy) */
.key-date-card h4 {
    color: var(--color-navy) !important;
    font-size: var(--fs-base);
    font-weight: 700;
    line-height: 1.3;
    margin: 0;
}

/* Grid de fechas: 2 columnas en tablet, 3 en desktop */
#key-dates .grid--3 {
    grid-template-columns: repeat(2, 1fr);
}
@media (min-width: 1024px) {
    #key-dates .grid--3 {
        grid-template-columns: repeat(3, 1fr);
    }
}
@media (max-width: 639px) {
    #key-dates .grid--3 {
        grid-template-columns: 1fr;
    }
    .key-date-card {
        min-height: auto;
    }
}

/* ─── Timeline ─── */
.timeline { position: relative; padding-left: var(--space-8); }
.timeline::before { content: ''; position: absolute; left: 15px; top: 0; bottom: 0; width: 2px; background: var(--color-border); transform-origin: top; }
.timeline__item { position: relative; padding-bottom: var(--space-8); }
.timeline__dot {
    position: absolute; left: -25px; top: 4px; width: 12px; height: 12px;
    border-radius: 50%; background: var(--color-gold); border: 2px solid var(--color-white);
    box-shadow: var(--shadow-sm);
}
@media (min-width: 1024px) {
    .timeline { padding-left: 0; }
    .timeline::before { left: 50%; transform: translateX(-50%); }
    .timeline__item { width: 50%; }
    .timeline__item:nth-child(odd) { padding-right: var(--space-12); text-align: right; }
    .timeline__item:nth-child(even) { margin-left: 50%; padding-left: var(--space-12); }
    .timeline__item:nth-child(odd) .timeline__dot { right: -8px; left: auto; }
    .timeline__item:nth-child(even) .timeline__dot { left: -8px; }
}

/* ─── Form multi-step ─── */
.step-indicator { display: flex; justify-content: center; gap: var(--space-2); margin-bottom: var(--space-8); }
.step-dot {
    width: 32px; height: 32px; border-radius: 50%; border: 2px solid var(--color-border);
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-heading); font-size: var(--fs-sm); font-weight: 700;
    color: var(--color-text-muted); transition: all var(--transition-smooth);
}
.step-dot.is-active { border-color: var(--color-gold); color: var(--color-navy); background: var(--color-gold); }
.step-dot.is-completed { border-color: var(--color-teal); background: var(--color-teal); color: var(--color-white); }
.step-connector { width: 40px; height: 2px; background: var(--color-border); align-self: center; transition: background var(--transition-smooth); }
.step-connector.is-filled { background: var(--color-teal); }
.step-panel { display: none; animation: step-in 0.4s ease; }
.step-panel.is-active { display: block; }
@keyframes step-in { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }

/* ─── Skeleton loading ─── */
.skeleton { background: linear-gradient(90deg, var(--color-off-white) 25%, #e2e8f0 37%, var(--color-off-white) 63%); background-size: 200% 100%; animation: skeleton-loading 1.5s ease-in-out infinite; border-radius: var(--radius-md); }
@keyframes skeleton-loading { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }