/* ============================================================================
   STYLES POUR LA PAGE HTML & CSS - THÈME EXPÉDITION 33
   Design Belle Époque cohérent avec la page d'accueil
   ============================================================================ */

/* ============================================================================
   BREADCRUMB BELLE ÉPOQUE
   ============================================================================ */

.breadcrumb-nav {
    padding: 1.5rem 0;
    background: rgba(10, 10, 10, 0.5);
    border-bottom: 1px solid var(--color-bronze);
    position: relative;
    z-index: 2;
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
    gap: 1rem;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.breadcrumb-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    color: var(--color-bronze);
    text-decoration: none;
    background: rgba(26, 21, 16, 0.6);
    border: 1px solid var(--color-bronze);
    font-weight: 600;
    transition: all 0.3s ease;
    font-family: var(--font-display);
    letter-spacing: 0.5px;
}

.breadcrumb-link:hover,
.breadcrumb-link:focus {
    background: rgba(212, 175, 55, 0.1);
    color: var(--color-gold);
    border-color: var(--color-gold);
    transform: translateX(-4px);
    box-shadow: var(--shadow-medium);
}

.breadcrumb-separator {
    color: var(--color-bronze);
    font-size: 1.2rem;
}

.breadcrumb-current {
    font-weight: 700;
    color: var(--color-gold);
    padding: 0.75rem 1.5rem;
    font-family: var(--font-display);
    letter-spacing: 0.5px;
}


/* ============================================================================
   HEADER DE CATÉGORIE
   ============================================================================ */

.category-header {
    position: relative;
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--color-charcoal) 0%, var(--color-obsidian) 100%);
    overflow: hidden;
    margin-bottom: 4rem;
}

.category-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(212, 175, 55, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(212, 175, 55, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.category-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 150px;
    background: linear-gradient(to bottom, transparent, var(--color-charcoal));
}

.category-header .container {
    position: relative;
    z-index: 2;
    text-align: center;
}

.category-icon-wrapper {
    display: inline-block;
    margin-bottom: 2rem;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.category-icon {
    font-size: 5rem;
    display: block;
    color: var(--color-gold);
    filter: drop-shadow(0 10px 30px rgba(212, 175, 55, 0.5));
}

.category-title {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    color: var(--color-gold);
    text-shadow: 0 4px 20px rgba(212, 175, 55, 0.6);
    letter-spacing: 3px;
}

.category-description {
    font-size: 1.3rem;
    line-height: 1.8;
    color: var(--color-mist);
    max-width: 800px;
    margin: 0 auto;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.8);
}


/* ============================================================================
   TITRE DE SECTION
   ============================================================================ */

.section-heading {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-gold);
    text-shadow: 0 2px 15px rgba(212, 175, 55, 0.5);
    margin-bottom: 3rem;
    letter-spacing: 2px;
    text-align: center;
}


/* ============================================================================
   LISTE DES COURS
   ============================================================================ */

.course-list {
    list-style: none;
    margin: 0 0 4rem 0;
    padding: 0;
    counter-reset: course-counter;
    display: grid;
    gap: 2.5rem;
}

.course-item {
    counter-increment: course-counter;
}


/* ============================================================================
   CARTES DE COURS BELLE ÉPOQUE
   ============================================================================ */

.course-card {
    position: relative;
    background: rgba(26, 21, 16, 0.8);
    border: 2px solid var(--color-bronze);
    border-radius: 0;
    padding: 2.5rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    backdrop-filter: blur(10px);
    cursor: pointer;
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.05), transparent);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.course-card::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--color-gold), var(--color-copper), var(--color-gold));
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
}

.course-card:hover,
.course-card:focus-within {
    transform: translateY(-8px);
    border-color: var(--color-gold);
    box-shadow: var(--shadow-glow);
}

.course-card:hover::before,
.course-card:focus-within::before {
    opacity: 1;
}

.course-card:hover::after,
.course-card:focus-within::after {
    opacity: 0.3;
}

/* Carte mise en avant */
.course-card.featured {
    border-color: var(--color-gold);
    background: rgba(26, 21, 16, 0.95);
}

.course-card.featured::before {
    opacity: 0.5;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(139, 111, 71, 0.3);
}

/* Numéro du cours avec counter CSS */
.course-number {
    position: relative;
    min-width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--color-bronze), var(--color-copper));
    color: var(--color-ivory);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 2rem;
    font-family: var(--font-display);
    flex-shrink: 0;
    box-shadow: 0 8px 20px rgba(212, 175, 55, 0.4);
    transition: all 0.3s ease;
    border: 1px solid var(--color-gold);
}

.course-number::before {
    content: counter(course-counter, decimal-leading-zero);
}

.course-card:hover .course-number {
    transform: rotate(10deg) scale(1.1);
    background: linear-gradient(135deg, var(--color-gold), var(--color-copper));
}

/* Badge de difficulté */
.difficulty-badge {
    padding: 0.5rem 1rem;
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    border: 1px solid;
    background: rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 2;
}

.difficulty-badge.beginner {
    color: #10b981;
    border-color: #10b981;
}

.difficulty-badge.intermediate {
    color: #f59e0b;
    border-color: #f59e0b;
}

.difficulty-badge.advanced {
    color: #ef4444;
    border-color: #ef4444;
}

.card-title {
    margin-bottom: 1rem;
}

.card-link {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-gold);
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
    letter-spacing: 1px;
}

/* Pseudo-élément qui couvre toute la carte pour la rendre cliquable */
.card-link::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.card-link:hover,
.card-link:focus {
    color: var(--color-ivory);
    text-shadow: 0 0 20px rgba(212, 175, 55, 0.8);
}

.card-description {
    color: var(--color-mist);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.card-meta {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-bronze);
    font-size: 0.95rem;
    position: relative;
    z-index: 2;
}

.meta-item dd {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}


/* ============================================================================
   NAVIGATION DE RETOUR
   ============================================================================ */

.back-nav {
    margin-top: 3rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 2rem;
    background: rgba(26, 21, 16, 0.8);
    border: 2px solid var(--color-bronze);
    text-decoration: none;
    color: var(--color-bronze);
    font-weight: 600;
    font-size: 1.05rem;
    transition: all 0.3s ease;
    font-family: var(--font-display);
    letter-spacing: 0.5px;
}

.back-link:hover,
.back-link:focus {
    border-color: var(--color-gold);
    color: var(--color-gold);
    transform: translateX(-8px);
    box-shadow: var(--shadow-medium);
    background: rgba(212, 175, 55, 0.1);
}

.back-link span:first-child {
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}

.back-link:hover span:first-child {
    transform: translateX(-4px);
}


/* ============================================================================
   ANIMATIONS
   ============================================================================ */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.course-card {
    animation: fadeInUp 0.6s ease backwards;
}

.course-item:nth-child(1) .course-card { animation-delay: 0.1s; }
.course-item:nth-child(2) .course-card { animation-delay: 0.2s; }
.course-item:nth-child(3) .course-card { animation-delay: 0.3s; }


/* ============================================================================
   RESPONSIVE
   ============================================================================ */

@media (max-width: 768px) {
    .category-title {
        font-size: 2.5rem;
    }
    
    .category-description {
        font-size: 1.05rem;
    }

    .category-icon {
        font-size: 3.5rem;
    }
    
    .course-number {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

    .card-link {
        font-size: 1.5rem;
    }
}

/* Respect des préférences de mouvement réduit */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}