/* ═══════════════════════════════════════════════════════════════════
   animations.css — Sistema de animaciones Cleaned Services
   Complementa style.css. No modifica selectores existentes.
   ═══════════════════════════════════════════════════════════════════ */

/* ── Custom Properties ──────────────────────────────────────────── */
:root {
    --ease-out-quint: cubic-bezier(0.22, 1, 0.36, 1);
    --dur-base:       700ms;
    --dur-slow:       1000ms;
    --dur-fast:       400ms;
    --marker-color:   #76b82a;
}

/* ── Base: child animations activate when parent section is visible ─
   Compatible con el sectionObserver existente en main.js (.section)
   y con el nuevo observer de scroll-reveal.js (.reveal).          */

/* Fade ──────────────────────────────────────────────────────────── */
.anim-fade {
    opacity: 0;
    transition: opacity var(--dur-base) var(--ease-out-quint) var(--delay, 0ms);
}
.section.is-visible .anim-fade,
.reveal.is-visible  .anim-fade {
    opacity: 1;
}

/* Up ────────────────────────────────────────────────────────────── */
.anim-up {
    opacity: 0;
    transform: translateY(30px);
    transition:
        opacity   var(--dur-base) var(--ease-out-quint) var(--delay, 0ms),
        transform var(--dur-base) var(--ease-out-quint) var(--delay, 0ms);
}
.section.is-visible .anim-up,
.reveal.is-visible  .anim-up {
    opacity: 1;
    transform: translateY(0);
}

/* Down ──────────────────────────────────────────────────────────── */
.anim-down {
    opacity: 0;
    transform: translateY(-30px);
    transition:
        opacity   var(--dur-base) var(--ease-out-quint) var(--delay, 0ms),
        transform var(--dur-base) var(--ease-out-quint) var(--delay, 0ms);
}
.section.is-visible .anim-down,
.reveal.is-visible  .anim-down {
    opacity: 1;
    transform: translateY(0);
}

/* Left ──────────────────────────────────────────────────────────── */
.anim-left {
    opacity: 0;
    transform: translateX(-40px);
    transition:
        opacity   var(--dur-base) var(--ease-out-quint) var(--delay, 0ms),
        transform var(--dur-base) var(--ease-out-quint) var(--delay, 0ms);
}
.section.is-visible .anim-left,
.reveal.is-visible  .anim-left {
    opacity: 1;
    transform: translateX(0);
}

/* Right ─────────────────────────────────────────────────────────── */
.anim-right {
    opacity: 0;
    transform: translateX(40px);
    transition:
        opacity   var(--dur-base) var(--ease-out-quint) var(--delay, 0ms),
        transform var(--dur-base) var(--ease-out-quint) var(--delay, 0ms);
}
.section.is-visible .anim-right,
.reveal.is-visible  .anim-right {
    opacity: 1;
    transform: translateX(0);
}

/* Zoom ──────────────────────────────────────────────────────────── */
.anim-zoom {
    opacity: 0;
    transform: scale(0.88);
    transition:
        opacity   var(--dur-base) var(--ease-out-quint) var(--delay, 0ms),
        transform var(--dur-base) var(--ease-out-quint) var(--delay, 0ms);
}
.section.is-visible .anim-zoom,
.reveal.is-visible  .anim-zoom {
    opacity: 1;
    transform: scale(1);
}

/* Stagger — scroll-reveal.js asigna --i por posición entre hermanos */
.anim-stagger {
    opacity: 0;
    transform: translateY(22px);
    transition:
        opacity   var(--dur-base) var(--ease-out-quint) calc(var(--i, 0) * 80ms),
        transform var(--dur-base) var(--ease-out-quint) calc(var(--i, 0) * 80ms);
}
.section.is-visible .anim-stagger,
.reveal.is-visible  .anim-stagger {
    opacity: 1;
    transform: translateY(0);
}

/* ── Marker Underline (estilo Eulen) ─────────────────────────────── */
.titulo-marker {
    background-image: linear-gradient(var(--marker-color), var(--marker-color));
    background-repeat: no-repeat;
    background-size: 100% 0.2em;
    background-position: 0 2.2em;
    padding-bottom: 0.42em;
    transition: background-position 1s ease-out 0.8s;
    display: inline-block;
}
.section.is-visible .titulo-marker,
.reveal.is-visible  .titulo-marker,
.titulo-marker.is-visible {
    background-position: 0 1.05em;
}

/* ── SVG Line-drawing progresivo ─────────────────────────────────── */
/* dasharray + dashoffset se inyectan por JS con getTotalLength()   */
.svg-draw path,
.svg-draw polyline,
.svg-draw line,
.svg-draw circle,
.svg-draw rect {
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: stroke-dashoffset 2.5s ease-in-out 0.4s;
}

/* ── Card morph ──────────────────────────────────────────────────── */
.card-morph {
    background-color: var(--bg-rest, #ffffff);
    transition:
        background-color 600ms var(--ease-out-quint),
        color            600ms var(--ease-out-quint);
}
.section.is-visible .card-morph,
.reveal.is-visible  .card-morph {
    background-color: var(--bg-active, #eaf2fb);
}

/* ── Stats block (count-up) ──────────────────────────────────────── */
.nosotros-stats {
    display: flex;
    gap: clamp(20px, 4vw, 48px);
    justify-content: center;
    flex-wrap: wrap;
    margin: 22px 0 28px;
}
.nosotros-stats > div {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}
.nosotros-stats strong {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 800;
    color: var(--blue-brand-700, #0053a5);
    line-height: 1;
    font-variant-numeric: tabular-nums;
}
.nosotros-stats span {
    font-size: 13px;
    color: var(--text-soft, #566478);
    text-align: center;
    max-width: 100px;
    line-height: 1.35;
}

/* ── Mobile menu — stagger de items al abrir ─────────────────────── */
/* Asigna --menu-i por posición (el close-item no tiene .nav-item)  */
.main-nav ul > li:nth-child(1) { --menu-i: 0; }
.main-nav ul > li:nth-child(2) { --menu-i: 1; }
.main-nav ul > li:nth-child(3) { --menu-i: 2; }
.main-nav ul > li:nth-child(4) { --menu-i: 3; }
.main-nav ul > li:nth-child(5) { --menu-i: 4; }

@media (max-width: 980px) {
    .main-nav ul .nav-item {
        opacity: 0;
        transform: translateY(16px);
        transition:
            opacity   300ms var(--ease-out-quint) calc(var(--menu-i, 0) * 65ms),
            transform 300ms var(--ease-out-quint) calc(var(--menu-i, 0) * 65ms);
    }
    .main-nav ul.is-open .nav-item {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Swiper — logos marquee ──────────────────────────────────────── */
/* Fallback sin JS: muestra logos en fila centrada */
.swiper-logos:not(.swiper-initialized) .swiper-wrapper {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}
.swiper-logos:not(.swiper-initialized) .swiper-slide {
    width: auto;
}

.swiper-logos {
    overflow: hidden;
    width: 100%;
    padding-block: 6px;
}
.swiper-logos .swiper-wrapper {
    align-items: center;
    transition-timing-function: linear !important;
}
.swiper-logos .swiper-slide {
    width: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-inline: 22px;
}
.swiper-logos img {
    height: clamp(34px, 5vw, 54px);
    width: auto;
    filter: grayscale(30%);
    opacity: 0.85;
    transition: filter 300ms, opacity 300ms;
}
.swiper-logos img:hover {
    filter: grayscale(0%);
    opacity: 1;
}

/* El wrapper externo hereda los estilos de .hero-certifications   */
.hero-certifications {
    display: block; /* override flex de style.css para Swiper */
}

/* ── prefers-reduced-motion: todo inmediato ──────────────────────── */
@media (prefers-reduced-motion: reduce) {
    .anim-fade,
    .anim-up,
    .anim-down,
    .anim-left,
    .anim-right,
    .anim-zoom,
    .anim-stagger {
        opacity:    1 !important;
        transform:  none !important;
        transition: none !important;
    }

    .titulo-marker {
        background-position: 0 0.85em !important;
        transition: none !important;
    }

    .svg-draw path,
    .svg-draw polyline,
    .svg-draw line,
    .svg-draw circle,
    .svg-draw rect {
        stroke-dashoffset: 0 !important;
        transition: none !important;
    }

    .card-morph {
        transition: none !important;
    }

    @media (max-width: 980px) {
        .main-nav ul .nav-item {
            opacity:    1 !important;
            transform:  none !important;
            transition: none !important;
        }
    }
}