/* =============================================================================
   TRANSITIONS & ANIMATIONS PREMIUM - MHB Theme
   Loader, page transitions, scroll reveals, micro-interactions
   Inspiré de abigailkahan.com & telhaclarke.com.au
   ============================================================================= */

/* =============================================================================
   LENIS SMOOTH SCROLL
   ============================================================================= */

html.lenis,
html.lenis body {
    height: auto;
}

.lenis.lenis-smooth {
    scroll-behavior: auto !important;
}

.lenis.lenis-smooth [data-lenis-prevent] {
    overscroll-behavior: contain;
}

/* =============================================================================
   PAGE LOADER
   Overlay élégant avec logo + barre de progression
   ============================================================================= */

.mhb-loader {
    position: fixed;
    inset: 0;
    z-index: 99999;
    background: var(--mhb-bg-dark, #001025);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    pointer-events: all;
}

.mhb-loader__logo {
    width: 80px;
    height: auto;
    margin-bottom: 32px;
    opacity: 0;
    transform: scale(0.85);
    animation: loaderLogoIn 0.32s cubic-bezier(0.34, 1.56, 0.64, 1) 0.05s forwards;
}

@keyframes loaderLogoIn {
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.mhb-loader__bar {
    width: 120px;
    height: 2px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 2px;
    overflow: hidden;
    opacity: 0;
    animation: loaderBarIn 0.2s ease 0.08s forwards;
}

@keyframes loaderBarIn {
    to {
        opacity: 1;
    }
}

.mhb-loader__progress {
    height: 100%;
    width: 0%;
    background: var(--mhb-accent, #E95323);
    border-radius: 2px;
    transition: width 0.18s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Loader dismissed */
body.is-loaded .mhb-loader {
    opacity: 0;
    transform: translateY(-15px);
    pointer-events: none;
    transition: opacity 0.28s cubic-bezier(0.77, 0, 0.18, 1),
                transform 0.28s cubic-bezier(0.77, 0, 0.18, 1);
}

/* =============================================================================
   PAGE TRANSITION
   Barre de progression fine en haut + fade du contenu
   ============================================================================= */

.mhb-transition-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--mhb-accent, #E95323), var(--mhb-secondary, #007AC1));
    z-index: 99998;
    opacity: 0;
    pointer-events: none;
    transition: width 0.28s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.16s ease;
}

body.is-transitioning .mhb-transition-bar {
    width: 75%;
    opacity: 1;
}

/* Fade out du contenu pendant la transition */
body.is-transitioning .mhb-main {
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

body.is-transitioning .mhb-footer {
    opacity: 0;
    transition: opacity 0.18s ease;
}

body.is-transitioning .mhb-nav-float {
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.18s ease,
                transform 0.18s ease;
}

/* =============================================================================
   CONTENT ENTRY ANIMATIONS
   Apparition du contenu après le loader
   ============================================================================= */

/* Avant le chargement : tout invisible */
body:not(.is-loaded) .mhb-main {
    opacity: 0;
}

body:not(.is-loaded) .mhb-header {
    opacity: 0;
    transform: translateY(-10px);
}

body:not(.is-loaded) .mhb-nav-float {
    opacity: 0;
    transform: translateY(-15px);
}

/* Après le chargement : animation d'entrée */
body.is-loaded .mhb-main {
    animation: contentReveal 0.7s cubic-bezier(0.25, 0.8, 0.25, 1);
}

body.is-loaded .mhb-header {
    animation: headerReveal 0.5s cubic-bezier(0.25, 0.8, 0.25, 1) 0.1s;
}

body.is-loaded .mhb-nav-float {
    animation: navReveal 0.5s cubic-bezier(0.25, 0.8, 0.25, 1) 0.2s;
}

@keyframes contentReveal {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes headerReveal {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes navReveal {
    from {
        opacity: 0;
        transform: translateY(-15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* =============================================================================
   SCROLL REVEAL HINTS (pour GSAP ScrollTrigger)
   ============================================================================= */

/* Parallax backgrounds */
.mhb-section--has-bg {
    background-size: cover;
    background-attachment: fixed;
}

@media (max-width: 1024px) {
    /* Pas de background-attachment: fixed sur mobile (perf) */
    .mhb-section--has-bg {
        background-attachment: scroll;
    }
}

/* =============================================================================
   MICRO-INTERACTIONS
   Hover states premium sur cards, boutons, liens
   ============================================================================= */

/* --- Card hover lift + shadow --- */
.mhb-card {
    transition: transform 0.45s cubic-bezier(0.25, 0.8, 0.25, 1),
                box-shadow 0.45s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.mhb-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.mhb-card--child-page:hover {
    transform: none;
}

/* --- Image zoom on card hover --- */
.mhb-card .card__image,
.mhb-card figure {
    overflow: hidden;
}

.mhb-card .card__image img,
.mhb-card figure img {
    transition: transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.mhb-card:hover .card__image img,
.mhb-card:hover figure img {
    transform: scale(1.04);
}

/* --- Button hover lift --- */
.mhb-btn,
.mhb-card__btn,
.btn {
    transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1),
                background-color 0.3s ease,
                color 0.3s ease,
                box-shadow 0.3s ease;
}

.mhb-btn:hover,
.mhb-card__btn:hover,
.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.mhb-btn:active,
.mhb-card__btn:active,
.btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* --- Link underline animation --- */
.mhb-menu-overlay__list a,
.mhb-footer__menu-list a {
    position: relative;
    display: inline-block;
}

.mhb-menu-overlay__list a::after,
.mhb-footer__menu-list a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.mhb-menu-overlay__list a:hover::after,
.mhb-footer__menu-list a:hover::after {
    width: 100%;
}

/* --- Partner logos hover --- */
.mhb-footer__partner-logo img,
.mhb-footer__competition-logo img {
    transition: opacity 0.35s ease, transform 0.35s ease;
    opacity: 0.65;
}

.mhb-footer__partner-logo:hover img,
.mhb-footer__competition-logo:hover img {
    opacity: 1;
    transform: scale(1.06);
}

/* --- Quick links hover --- */
.quick-link {
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.quick-link:hover {
    transform: translateY(-2px);
}

/* --- Social links hover --- */
.social-link {
    transition: transform 0.25s ease, opacity 0.25s ease;
    opacity: 0.7;
}

.social-link:hover {
    transform: scale(1.15);
    opacity: 1;
}

/* =============================================================================
   ENHANCED SECTION TITLE REVEAL (classe ajoutée par JS)
   ============================================================================= */

/* =============================================================================
   SMOOTH TRANSITIONS SUR LES FILTRES
   ============================================================================= */

.filter-btn {
    transition: background-color 0.25s ease,
                color 0.25s ease,
                border-color 0.25s ease,
                transform 0.2s ease;
}

.filter-btn:hover {
    transform: translateY(-1px);
}

.filter-btn:active {
    transform: translateY(0);
}

/* =============================================================================
   REDUCED MOTION
   ============================================================================= */

@media (prefers-reduced-motion: reduce) {
    .mhb-loader {
        transition: opacity 0.1s ease !important;
        transform: none !important;
    }

    .mhb-loader__logo {
        animation: none !important;
        opacity: 1 !important;
        transform: none !important;
    }

    body.is-loaded .mhb-main,
    body.is-loaded .mhb-header,
    body.is-loaded .mhb-nav-float {
        animation: none !important;
        opacity: 1 !important;
        transform: none !important;
    }

    body.is-transitioning .mhb-main,
    body.is-transitioning .mhb-footer,
    body.is-transitioning .mhb-nav-float {
        transition: none !important;
        transform: none !important;
    }

    .mhb-card,
    .mhb-btn,
    .mhb-card__btn,
    .btn,
    .quick-link,
    .social-link,
    .filter-btn {
        transition: none !important;
    }

    .mhb-card:hover,
    .mhb-card:hover .card__image img,
    .mhb-card:hover figure img {
        transform: none !important;
    }

    .mhb-section--has-bg {
        background-attachment: scroll !important;
    }
}