/* ============================================================================
   CLAIR OBSCUR: EXPÉDITION 33 - STYLES DWWM ACADEMY
   Inspiré du RPG français avec esthétique Belle Époque
   ============================================================================ */

/* ============================================================================
   VARIABLES CSS
   ============================================================================ */

:root {
    /* Palette Clair Obscur */
    --color-obsidian: #0a0a0a;
    --color-charcoal: #1a1510;
    --color-bronze: #8b6f47;
    --color-gold: #d4af37;
    --color-copper: #b87333;
    --color-steel: #4a5568;
    --color-mist: #e8e4d9;
    --color-ivory: #f5f1e8;
    --color-ember: #d97706;
    --color-mystery: #4338ca;
    
    /* Typographie Belle Époque */
    --font-display: 'Cinzel', serif;
    --font-body: 'Crimson Pro', serif;
    
    /* Ombres mystérieuses */
    --shadow-subtle: 0 2px 8px rgba(212, 175, 55, 0.1);
    --shadow-medium: 0 8px 24px rgba(212, 175, 55, 0.15);
    --shadow-strong: 0 16px 48px rgba(212, 175, 55, 0.2);
    --shadow-glow: 0 0 30px rgba(212, 175, 55, 0.3);
}


/* ============================================================================
   RÉINITIALISATION & BASE
   ============================================================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    background: var(--color-charcoal);
    color: var(--color-mist);
    line-height: 1.7;
    overflow-x: hidden;
}

/* Effet de particules animées en arrière-plan */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20% 30%, rgba(212, 175, 55, 0.3), transparent),
        radial-gradient(2px 2px at 60% 70%, rgba(212, 175, 55, 0.2), transparent),
        radial-gradient(1px 1px at 50% 50%, rgba(212, 175, 55, 0.25), transparent),
        radial-gradient(1px 1px at 80% 10%, rgba(212, 175, 55, 0.3), transparent),
        radial-gradient(2px 2px at 90% 60%, rgba(212, 175, 55, 0.2), transparent);
    background-size: 200% 200%;
    animation: particles 20s ease-in-out infinite;
    pointer-events: none;
    z-index: 1;
}

@keyframes particles {
    0%, 100% { transform: translate(0, 0); }
    25% { transform: translate(-5%, -5%); }
    50% { transform: translate(-10%, 5%); }
    75% { transform: translate(5%, -10%); }
}


/* ============================================================================
   UTILITAIRES D'ACCESSIBILITÉ
   ============================================================================ */

.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    padding: 1rem 2rem;
    background: var(--color-gold);
    color: var(--color-obsidian);
    text-decoration: none;
    font-weight: 700;
    font-family: var(--font-display);
    z-index: 9999;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 0;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}


/* ============================================================================
   CONTENEUR
   ============================================================================ */

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 2;
}


/* ============================================================================
   EN-TÊTE BELLE ÉPOQUE
   ============================================================================ */

.site-header {
    position: relative;
    padding: 3rem 0;
    background: linear-gradient(180deg, var(--color-obsidian) 0%, var(--color-charcoal) 100%);
    border-bottom: 2px solid var(--color-bronze);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.site-header::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-gold) 50%, transparent);
}

.header-wrapper {
    position: relative;
    z-index: 2;
}

.branding {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.logo-container {
    position: relative;
}

.logo-container svg {
    filter: drop-shadow(0 4px 12px rgba(212, 175, 55, 0.5));
    transition: transform 0.3s ease;
}

.logo-container:hover svg {
    transform: scale(1.05);
}

.site-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--color-gold);
    text-shadow: 0 2px 10px rgba(212, 175, 55, 0.5);
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.site-tagline {
    font-size: 1rem;
    color: var(--color-bronze);
    font-weight: 500;
    letter-spacing: 1px;
}


/* ============================================================================
   SECTION HERO MYSTÉRIEUSE
   ============================================================================ */

.hero {
    position: relative;
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--color-charcoal) 0%, var(--color-obsidian) 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('expedition-33-bg.jpg'); /* Placer une image du jeu ici */
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    filter: grayscale(50%);
}

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

.hero-wrapper {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-heading {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--color-gold);
    text-shadow: 0 4px 20px rgba(212, 175, 55, 0.6);
    margin-bottom: 1.5rem;
    letter-spacing: 3px;
    line-height: 1.2;
}

.hero-text {
    font-size: 1.3rem;
    line-height: 1.8;
    color: var(--color-mist);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.8);
}


/* ============================================================================
   CONTENU PRINCIPAL
   ============================================================================ */

.main-content {
    position: relative;
    z-index: 2;
    padding: 4rem 0;
}


/* ============================================================================
   EN-TÊTES DE SECTION
   ============================================================================ */

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-heading {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-gold);
    text-shadow: 0 2px 15px rgba(212, 175, 55, 0.5);
    margin-bottom: 1rem;
    letter-spacing: 2px;
}

.section-description {
    font-size: 1.2rem;
    color: var(--color-bronze);
}


/* ============================================================================
   GRILLE DE CARTES
   ============================================================================ */

.catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}


/* ============================================================================
   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;
}

.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);
}

/* ============================================================================
   ICÔNES DE COURS - Support pour images PNG
   ============================================================================ */

.course-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(139, 111, 71, 0.2), rgba(184, 115, 51, 0.2));
    border: 2px solid rgba(212, 175, 55, 0.3);
    transition: all 0.3s ease;
}

.course-icon img {
    display: block;
    width: 48px;
    height: 48px;
    object-fit: contain;
    transition: all 0.3s ease;
    filter: brightness(1) drop-shadow(0 0 4px rgba(212, 175, 55, 0.2));
}

.course-card:hover .course-icon {
    background: linear-gradient(135deg, rgba(139, 111, 71, 0.4), rgba(184, 115, 51, 0.4));
    border-color: rgba(212, 175, 55, 0.6);
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.3);
}

.course-card:hover .course-icon img {
    filter: brightness(1.3) drop-shadow(0 0 12px rgba(212, 175, 55, 0.5));
    transform: scale(1.05);
}

/* Effet spécial pour la carte featured */
.course-card.featured .course-icon {
    border-color: rgba(212, 175, 55, 0.5);
}

.course-card.featured:hover .course-icon img {
    filter: brightness(1.4) drop-shadow(0 0 16px rgba(212, 175, 55, 0.7));
    transform: scale(1.1) rotate(5deg);
}

/* Animation au chargement des icônes */
@keyframes iconFadeIn {
    from {
        opacity: 0;
        transform: scale(0.8) rotate(-10deg);
    }
    to {
        opacity: 1;
        transform: scale(1) rotate(0deg);
    }
}

.course-icon img {
    animation: iconFadeIn 0.6s ease-out backwards;
}

/* Décalage de l'animation pour chaque icône */
.course-card:nth-child(1) .course-icon img { animation-delay: 0.1s; }
.course-card:nth-child(2) .course-icon img { animation-delay: 0.2s; }
.course-card:nth-child(3) .course-icon img { animation-delay: 0.3s; }
.course-card:nth-child(4) .course-icon img { animation-delay: 0.4s; }
.course-card:nth-child(5) .course-icon img { animation-delay: 0.5s; }
.course-card:nth-child(6) .course-icon img { animation-delay: 0.6s; }
.course-card:nth-child(7) .course-icon img { animation-delay: 0.7s; }
.course-card:nth-child(8) .course-icon img { animation-delay: 0.8s; }

/* Support pour les écrans haute résolution */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .course-icon img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Couleurs des icônes par technologie (pour les SVG legacy) */
.course-icon.html-css { color: var(--color-ember); }
.course-icon.javascript { color: #fbbf24; }
.course-icon.php { color: #a78bfa; }
.course-icon.symfony { color: var(--color-gold); }
.course-icon.git { color: #f97316; }
.course-icon.deploy { color: #06b6d4; }
.course-icon.database { color: #14b8a6; }
.course-icon.tools { color: var(--color-mystery); }

.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);
}

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

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

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

.difficulty-badge.all-levels {
    color: var(--color-gold);
    border-color: var(--color-gold);
}

.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);
}

/* S'assurer que les autres éléments interactifs passent devant */
.difficulty-badge,
.meta-item a,
.meta-item button {
    position: relative;
    z-index: 2;
}

.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;
}

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


/* ============================================================================
   ACCÈS RAPIDE
   ============================================================================ */

.quick-access {
    margin-top: 4rem;
    padding: 3rem 0;
    border-top: 2px solid var(--color-bronze);
    border-bottom: 2px solid var(--color-bronze);
    background: rgba(10, 10, 10, 0.5);
}

.quick-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    list-style: none;
    margin-top: 2rem;
}

.quick-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem 1.5rem;
    background: rgba(26, 21, 16, 0.8);
    border: 1px solid var(--color-bronze);
    text-decoration: none;
    color: var(--color-mist);
    font-weight: 600;
    transition: all 0.3s ease;
    font-family: var(--font-display);
    letter-spacing: 0.5px;
}

.quick-link:hover,
.quick-link:focus {
    border-color: var(--color-gold);
    color: var(--color-gold);
    transform: translateX(8px);
    box-shadow: var(--shadow-medium);
}


/* ============================================================================
   PIED DE PAGE
   ============================================================================ */

.site-footer {
    background: var(--color-obsidian);
    color: var(--color-mist);
    padding: 4rem 0 2rem;
    margin-top: 6rem;
    border-top: 2px solid var(--color-gold);
    position: relative;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: -2px;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-copper) 50%, transparent);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section {
    position: relative;
    z-index: 1;
}

.footer-heading {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-gold);
    margin-bottom: 1rem;
    letter-spacing: 1px;
}

.footer-text {
    color: var(--color-bronze);
    line-height: 1.8;
}

.footer-address a {
    color: var(--color-bronze);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-address a:hover {
    color: var(--color-gold);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(139, 111, 71, 0.3);
    text-align: center;
    color: var(--color-bronze);
    font-size: 0.9rem;
    font-family: var(--font-display);
    letter-spacing: 1px;
}


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

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

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

.course-card:nth-child(1) { animation-delay: 0.1s; }
.course-card:nth-child(2) { animation-delay: 0.2s; }
.course-card:nth-child(3) { animation-delay: 0.3s; }
.course-card:nth-child(4) { animation-delay: 0.4s; }
.course-card:nth-child(5) { animation-delay: 0.5s; }
.course-card:nth-child(6) { animation-delay: 0.6s; }
.course-card:nth-child(7) { animation-delay: 0.7s; }
.course-card:nth-child(8) { animation-delay: 0.8s; }


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

@media (max-width: 768px) {
    .site-title {
        font-size: 2rem;
    }

    .hero-heading {
        font-size: 2.5rem;
    }

    .section-heading {
        font-size: 2rem;
    }

    .catalog-grid {
        grid-template-columns: 1fr;
    }

    .quick-links {
        grid-template-columns: 1fr;
    }
}

/* 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;
    }
    
    .course-icon img {
        animation: none;
        transition: none;
    }
    
    .course-card:hover .course-icon img {
        transform: none;
    }
}