/* ========================================
   ANIMATIONS — Motion System
   Clínica Estética Senz
   Botanical Luxury
======================================== */

/* ── Fade In on Scroll ── */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s var(--ease-out),
                transform 0.6s var(--ease-out);
}

.fade-in.visivel {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered delays */
.fade-in:nth-child(2) { transition-delay: 0.08s; }
.fade-in:nth-child(3) { transition-delay: 0.16s; }
.fade-in:nth-child(4) { transition-delay: 0.24s; }
.fade-in:nth-child(5) { transition-delay: 0.30s; }
.fade-in:nth-child(6) { transition-delay: 0.36s; }

/* ── WhatsApp Pulse ── */
@keyframes pulso {
    0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.3); }
    50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.5); }
}

/* ── Scroll Indicator Float ── */
@keyframes flutuar {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* ── Card Hover ── */
.card-hover {
    transition: transform var(--dur-base) var(--ease-out),
                box-shadow var(--dur-base) var(--ease-out);
}

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

/* ── Underline Animation ── */
.underline-anim {
    position: relative;
}

.underline-anim::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--cor-acento);
    transition: width var(--dur-base) var(--ease-out);
}

.underline-anim:hover::after {
    width: 100%;
}

/* ══════════════════════════════════════
   REDUCED MOTION — Accessibility
   Respect user preference to minimize animation
══════════════════════════════════════ */

@media (prefers-reduced-motion: reduce) {
    /* Kill all transforms and opacity transitions */
    .fade-in {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .fade-in.visivel {
        transition: none;
    }

    /* Disable card hover lifts */
    .tratamento-card:hover,
    .blog-card:hover,
    .diferencial-card:hover,
    .icon-box:hover,
    .card-hover:hover {
        transform: none;
    }

    /* Disable button lifts */
    .btn:hover,
    .btn-primario:hover,
    .btn-secundario:hover,
    .btn-outline-branco:hover,
    .btn-whatsapp:hover,
    .navbar-cta:hover,
    a.navbar-cta:hover {
        transform: none;
    }

    /* Disable image scale on hover */
    .blog-card:hover .blog-imagem img,
    .galeria-3 img:hover,
    .tratamento-card:hover .tratamento-icone {
        transform: none;
    }

    /* Kill keyframe animations */
    .whatsapp-float {
        animation: none;
    }

    .hero-scroll {
        animation: none;
    }

    /* Slider: instant transitions */
    .slide {
        transition: opacity 0.01s;
    }

    /* Kill back-to-top float */
    .voltar-topo:hover {
        transform: none;
    }

    /* Reduce all remaining transitions to near-instant */
    *,
    *::before,
    *::after {
        transition-duration: 0.01s !important;
        animation-duration: 0.01s !important;
    }
}