/**
 * Formations Carousel - Hero Slider avec filtres par catégories
 * Design cinématique et immersif
 */

/* ==========================================================================
   CSS Custom Properties
   ========================================================================== */

.formations-carousel {
    --carousel-height: 70vh;
    --overlay-opacity: 0.6;
    --carousel-primary: #F8740E;
    --carousel-primary-hover: #E56A0D;
    --carousel-dark: #0a0a0f;
    --carousel-light: #ffffff;
    --carousel-gray: rgba(255, 255, 255, 0.7);
    --carousel-transition: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --carousel-font-display: 'Playfair Display', Georgia, serif;
    --carousel-font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ==========================================================================
   Main Container
   ========================================================================== */

.formations-carousel {
    position: relative;
    width: 100%;
    background: var(--carousel-dark);
    overflow: hidden;
    font-family: var(--carousel-font-body);
}

/* ==========================================================================
   Category Tabs
   ========================================================================== */

.formations-carousel__tabs {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    gap: 0.5rem;
    padding: 1.5rem 2rem;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.8) 0%, transparent 100%);
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.formations-carousel__tabs::-webkit-scrollbar {
    display: none;
}

.formations-carousel__tab {
    flex-shrink: 0;
    padding: 0.625rem 1.25rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    color: var(--carousel-gray);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.formations-carousel__tab:hover {
    background: rgba(255, 255, 255, 0.2);
    color: var(--carousel-light);
    border-color: rgba(255, 255, 255, 0.4);
}

.formations-carousel__tab.active {
    background: var(--carousel-primary);
    border-color: var(--carousel-primary);
    color: var(--carousel-light);
    font-weight: 600;
}

/* ==========================================================================
   Carousel Container
   ========================================================================== */

.formations-carousel__container {
    position: relative;
    height: var(--carousel-height);
    min-height: 400px;
}

/* ==========================================================================
   Slides Container
   ========================================================================== */

.formations-carousel__slides {
    position: relative;
    width: 100%;
    height: 100%;
}

/* ==========================================================================
   Individual Slide
   ========================================================================== */

.formations-carousel__slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--carousel-transition), visibility var(--carousel-transition);
}

.formations-carousel__slide.active {
    opacity: 1;
    visibility: visible;
}

/* Background Image */
.formations-carousel__slide-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transform: scale(1);
    transition: transform 8s ease-out;
}

.formations-carousel__slide.active .formations-carousel__slide-bg {
    transform: scale(1.05);
}

/* Overlay Gradient */
.formations-carousel__slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(10, 10, 15, var(--overlay-opacity)) 0%,
        rgba(10, 10, 15, calc(var(--overlay-opacity) * 0.5)) 50%,
        rgba(248, 116, 14, calc(var(--overlay-opacity) * 0.3)) 100%
    );
}

/* ==========================================================================
   Slide Content
   ========================================================================== */

.formations-carousel__slide-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 4rem 3rem;
    background: linear-gradient(0deg, rgba(0, 0, 0, 0.9) 0%, transparent 100%);
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.2s;
}

.formations-carousel__slide.active .formations-carousel__slide-content {
    transform: translateY(0);
    opacity: 1;
}

/* Tags */
.formations-carousel__slide-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.formations-carousel__slide-tag {
    padding: 0.375rem 0.875rem;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--carousel-light);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

/* Tag colors - using existing variables */
.formations-carousel__slide-tag.tag-urgent {
    background: #DC2626;
}

.formations-carousel__slide-tag.tag-free {
    background: #059669;
}

.formations-carousel__slide-tag.tag-special {
    background: #2563EB;
}

.formations-carousel__slide-tag.tag-funded {
    background: #7C3AED;
}

/* Title */
.formations-carousel__slide-title {
    margin: 0 0 1rem;
    font-family: var(--carousel-font-display);
    font-size: clamp(1.75rem, 4vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    color: var(--carousel-light);
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
    max-width: 800px;
}

/* Meta */
.formations-carousel__slide-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--carousel-gray);
    font-size: 0.9375rem;
}

.formations-carousel__slide-duration,
.formations-carousel__slide-formats {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.formations-carousel__slide-duration svg,
.formations-carousel__slide-formats svg {
    opacity: 0.8;
}

/* CTA Button */
.formations-carousel__slide-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: var(--carousel-primary);
    border: none;
    border-radius: 8px;
    color: var(--carousel-light);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(248, 116, 14, 0.4);
}

.formations-carousel__slide-cta:hover {
    background: var(--carousel-primary-hover);
    transform: translateX(5px);
    box-shadow: 0 6px 30px rgba(248, 116, 14, 0.5);
}

.formations-carousel__slide-cta svg {
    transition: transform 0.3s ease;
}

.formations-carousel__slide-cta:hover svg {
    transform: translateX(5px);
}

/* ==========================================================================
   Bottom Navigation Bar (Arrows + Dots)
   ========================================================================== */

.formations-carousel__navigation {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 50;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 0.75rem 1.25rem;
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 100px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

/* Navigation Arrows */
.formations-carousel__nav {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    color: var(--carousel-light);
    cursor: pointer;
    transition: all 0.25s ease;
}

.formations-carousel__nav:hover {
    background: var(--carousel-primary);
    border-color: var(--carousel-primary);
    transform: scale(1.1);
}

.formations-carousel__nav:active {
    transform: scale(0.95);
}

.formations-carousel__nav svg {
    width: 18px;
    height: 18px;
}

/* Dots Container */
.formations-carousel__dots {
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.formations-carousel__dot {
    width: 8px;
    height: 8px;
    padding: 0;
    background: rgba(255, 255, 255, 0.3);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
}

.formations-carousel__dot:hover {
    background: rgba(255, 255, 255, 0.6);
    transform: scale(1.2);
}

.formations-carousel__dot.active {
    background: var(--carousel-primary);
    width: 24px;
    border-radius: 4px;
}

/* ==========================================================================
   Loading State
   ========================================================================== */

.formations-carousel__loading {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(10, 10, 15, 0.9);
    z-index: 200;
}

.formations-carousel__spinner {
    width: 48px;
    height: 48px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--carousel-primary);
    border-radius: 50%;
    animation: carousel-spin 1s linear infinite;
}

@keyframes carousel-spin {
    to {
        transform: rotate(360deg);
    }
}

/* ==========================================================================
   Error State
   ========================================================================== */

.formations-carousel-error {
    padding: 2rem;
    text-align: center;
    color: #666;
    background: #f9fafb;
    border-radius: 8px;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

/* Tablet */
@media (max-width: 1024px) {
    .formations-carousel__tabs {
        padding: 1rem 1.5rem;
    }

    .formations-carousel__nav {
        width: 48px;
        height: 48px;
    }

    .formations-carousel__nav--prev {
        left: 1rem;
    }

    .formations-carousel__nav--next {
        right: 1rem;
    }

    .formations-carousel__slide-content {
        padding: 3rem 2rem;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .formations-carousel {
        --carousel-height: 85vh;
    }

    .formations-carousel__container {
        min-height: 450px;
    }

    /* Tabs optimisés mobile */
    .formations-carousel__tabs {
        padding: 0.75rem 1rem;
        gap: 0.5rem;
        /* Indicateur de scroll */
        mask-image: linear-gradient(90deg, black 90%, transparent 100%);
        -webkit-mask-image: linear-gradient(90deg, black 90%, transparent 100%);
        scroll-behavior: smooth;
        scroll-snap-type: x mandatory;
        /* Safe area pour iPhone X+ */
        padding-left: max(1rem, env(safe-area-inset-left));
        padding-right: max(1rem, env(safe-area-inset-right));
    }

    .formations-carousel__tab {
        padding: 0.625rem 1rem;
        font-size: 0.75rem;
        border-radius: 20px;
        white-space: nowrap;
        scroll-snap-align: start;
        /* Plus de contraste */
        background: rgba(255, 255, 255, 0.15);
        border-color: rgba(255, 255, 255, 0.3);
    }

    .formations-carousel__tab.active {
        padding: 0.625rem 1.25rem;
        font-weight: 700;
    }

    /* Cacher les flèches sur mobile */
    .formations-carousel__nav {
        display: none;
    }

    /* Slide content optimisé */
    .formations-carousel__slide-content {
        padding: 1.5rem 1.25rem 2rem;
        /* Gradient plus prononcé pour lisibilité */
        background: linear-gradient(0deg,
            rgba(0, 0, 0, 0.95) 0%,
            rgba(0, 0, 0, 0.7) 50%,
            transparent 100%
        );
    }

    /* Tags plus visibles */
    .formations-carousel__slide-tags {
        margin-bottom: 0.75rem;
        gap: 0.375rem;
    }

    .formations-carousel__slide-tag {
        padding: 0.375rem 0.75rem;
        font-size: 0.6875rem;
        letter-spacing: 0.03em;
    }

    /* Titre adapté */
    .formations-carousel__slide-title {
        font-size: clamp(1.25rem, 5.5vw, 1.75rem);
        line-height: 1.3;
        margin-bottom: 0.75rem;
        /* Limiter à 3 lignes */
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    /* Meta empilés et compacts */
    .formations-carousel__slide-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
        font-size: 0.8125rem;
        margin-bottom: 1rem;
        color: rgba(255, 255, 255, 0.85);
    }

    .formations-carousel__slide-duration,
    .formations-carousel__slide-formats {
        gap: 0.375rem;
    }

    .formations-carousel__slide-duration svg,
    .formations-carousel__slide-formats svg {
        width: 14px;
        height: 14px;
    }

    /* CTA prominent et accessible */
    .formations-carousel__slide-cta {
        width: 100%;
        justify-content: center;
        padding: 1rem 1.5rem;
        font-size: 0.9375rem;
        border-radius: 10px;
        /* Zone de tap minimum 48px */
        min-height: 48px;
        /* Safe area bottom pour iPhone */
        margin-bottom: env(safe-area-inset-bottom, 0);
    }

    /* Dots repositionnés */
    .formations-carousel__dots {
        bottom: auto;
        top: auto;
        position: relative;
        margin-top: 1rem;
        padding-bottom: 1rem;
        justify-content: center;
    }

    .formations-carousel__dot {
        width: 8px;
        height: 8px;
        /* Zone de tap plus grande */
        padding: 8px;
        margin: -8px;
        background-clip: content-box;
    }

    .formations-carousel__dot.active {
        transform: scale(1.5);
    }
}

/* Small Mobile (iPhone SE, etc.) */
@media (max-width: 480px) {
    .formations-carousel {
        --carousel-height: 90vh;
    }

    .formations-carousel__container {
        min-height: 400px;
    }

    .formations-carousel__tabs {
        padding: 0.625rem 0.75rem;
        gap: 0.375rem;
    }

    .formations-carousel__tab {
        padding: 0.5rem 0.875rem;
        font-size: 0.6875rem;
    }

    .formations-carousel__slide-content {
        padding: 1.25rem 1rem 1.5rem;
    }

    .formations-carousel__slide-title {
        font-size: clamp(1.125rem, 5vw, 1.5rem);
        -webkit-line-clamp: 4;
    }

    .formations-carousel__slide-meta {
        font-size: 0.75rem;
        gap: 0.375rem;
    }

    .formations-carousel__slide-cta {
        padding: 0.875rem 1.25rem;
        font-size: 0.875rem;
    }

    /* Tags encore plus compacts */
    .formations-carousel__slide-tag {
        padding: 0.25rem 0.5rem;
        font-size: 0.625rem;
    }
}

/* Très petits écrans */
@media (max-width: 360px) {
    .formations-carousel__slide-title {
        font-size: 1.125rem;
    }

    .formations-carousel__slide-cta {
        font-size: 0.8125rem;
        padding: 0.75rem 1rem;
    }
}

/* Paysage mobile - éviter que le carousel prenne tout l'écran */
@media (max-width: 768px) and (orientation: landscape) {
    .formations-carousel {
        --carousel-height: 100vh;
    }

    .formations-carousel__container {
        min-height: 280px;
    }

    .formations-carousel__slide-content {
        padding: 1rem 2rem;
    }

    .formations-carousel__slide-title {
        font-size: 1.25rem;
        -webkit-line-clamp: 2;
    }

    .formations-carousel__slide-meta {
        flex-direction: row;
        gap: 1rem;
    }

    .formations-carousel__dots {
        position: absolute;
        bottom: 0.5rem;
        margin-top: 0;
    }
}

/* ==========================================================================
   Touch/Swipe Support
   ========================================================================== */

.formations-carousel__slides {
    touch-action: pan-y pinch-zoom;
}

/* ==========================================================================
   Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    .formations-carousel__slide,
    .formations-carousel__slide-bg,
    .formations-carousel__slide-content,
    .formations-carousel__nav,
    .formations-carousel__dot,
    .formations-carousel__tab,
    .formations-carousel__slide-cta {
        transition: none;
    }

    .formations-carousel__slide.active .formations-carousel__slide-bg {
        transform: none;
    }

    .formations-carousel__spinner {
        animation: none;
    }
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
    .formations-carousel {
        display: none;
    }
}