/* styles-cours.css */

/* Header de page avec animation */
.page-header {
    position: relative;
    padding: 120px 0 60px;
    background: linear-gradient(135deg, var(--rouge-principal), var(--rouge-fonce));
    overflow: hidden;
    margin-top: 70px;
}

.header-animation {
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background: radial-gradient(circle, transparent 20%, rgba(255,255,255,0.3) 20%);
    background-size: 20px 20px;
    animation: wave 10s linear infinite;
}

@keyframes wave {
    0% {
        transform: translate(0, 0) rotate(0deg);
    }
    100% {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

.page-title {
    color: var(--blanc);
    font-size: 3rem;
    margin-bottom: 1rem;
    text-align: center;
    animation: fadeInUp 0.8s ease;
    position: relative;
}

.page-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2rem;
    text-align: center;
    animation: fadeInUp 0.8s ease 0.2s both;
    position: relative;
}

/* Section des TP */
.tp-section {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--blanc), var(--gris-clair));
}

/* Filtres */
.filter-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 50px;
}

.filter-btn {
    padding: 10px 25px;
    background: var(--blanc);
    color: var(--rouge-principal);
    border: 2px solid var(--rouge-principal);
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: var(--rouge-principal);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.5s, height 0.5s;
}

.filter-btn:hover,
.filter-btn.active {
    color: var(--blanc);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(220, 20, 60, 0.3);
}

.filter-btn:hover::before,
.filter-btn.active::before {
    width: 300px;
    height: 300px;
}

.filter-btn span {
    position: relative;
    z-index: 1;
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--rouge-principal), var(--rouge-gradient-2));
    border-color: transparent;
}

/* Grille des TP */
.tp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

/* Cartes TP */
.tp-card {
    background: var(--blanc);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    animation: fadeInUp 0.6s ease both;
}
.tp-section::before {
    display: none;
}
.tp-card::before {
    pointer-events: none; /* Permet aux liens à l'intérieur d'être cliquables */
}

.tp-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--rouge-tres-clair), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.tp-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 15px 40px rgba(220, 20, 60, 0.2);
}

.tp-card:hover::before {
    opacity: 0.1;
}

/* Header de la carte */
.tp-header {
    padding: 20px;
    background: linear-gradient(135deg, var(--rouge-principal), var(--rouge-gradient-2));
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.tp-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blanc);
    transition: var(--transition);
}

.tp-card:hover .tp-icon {
    transform: rotate(360deg);
    background: rgba(255, 255, 255, 0.3);
}

.tp-category {
    background: rgba(255, 255, 255, 0.9);
    color: var(--rouge-principal);
    padding: 5px 15px;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Contenu de la carte */
.tp-title {
    padding: 0 20px;
    margin: 20px 0 10px;
    font-size: 1.3rem;
    color: var(--rouge-fonce);
    font-weight: 600;
}

.tp-description {
    padding: 0 20px;
    color: var(--gris);
    line-height: 1.6;
    margin-bottom: 20px;
}

/* Footer de la carte */
.tp-footer {
    padding: 20px;
    border-top: 1px solid var(--gris-clair);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tp-date {
    color: var(--gris);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 5px;
}

.tp-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--rouge-principal);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    padding: 8px 16px;
    border-radius: 20px;
    background: var(--rouge-tres-clair);
}

.tp-link:hover {
    background: linear-gradient(135deg, var(--rouge-principal), var(--rouge-gradient-2));
    color: var(--blanc);
    transform: translateX(5px);
}

.tp-link svg {
    transition: var(--transition);
}

.tp-link:hover svg {
    transform: translateX(3px) translateY(-3px);
}

/* Animation d'apparition par catégorie */
.tp-card[data-category="web"] {
    animation-delay: 0.1s;
}

.tp-card[data-category="prog"] {
    animation-delay: 0.2s;
}

.tp-card[data-category="bdd"] {
    animation-delay: 0.3s;
}

.tp-card[data-category="reseau"] {
    animation-delay: 0.4s;
}

/* Effet de masquage pour les filtres */
.tp-card.hidden {
    display: none;
}

.tp-card.show {
    animation: fadeInUp 0.5s ease both;
}

/* Effet de particules flottantes */
.tp-section::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, var(--rouge-tres-clair) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, var(--rouge-tres-clair) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, var(--rouge-tres-clair) 0%, transparent 50%);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
    pointer-events: none;
}

/* Responsive */
@media (max-width: 968px) {
    .page-title {
        font-size: 2rem;
    }
    
    .tp-grid {
        grid-template-columns: 1fr;
        padding: 0 20px;
    }
    
    .filter-container {
        padding: 0 20px;
    }
    
    .filter-btn {
        padding: 8px 20px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .tp-card {
        margin: 0 10px;
    }
    
    .tp-footer {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }
}
/* Menu déroulant Année/B1-B2-B3 */
.tp-years {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.tp-year {
    background: var(--rouge-tres-clair);
    border-radius: 15px;
    overflow: hidden;
    transition: var(--transition);
}

.tp-year-header {
    padding: 20px;
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--rouge-principal), var(--rouge-gradient-2));
    color: var(--blanc);
    cursor: pointer;
}

.tp-submenu {
    display: none; /* caché par défaut */
    flex-wrap: wrap;
    justify-content: space-around;
    padding: 20px;
    gap: 20px;
}

.tp-year.active .tp-submenu {
    display: flex; /* affiché au clic */
}

.tp-batch {
    flex: 1;
    min-width: 250px;
    display: flex;
    flex-direction: column;
}

.tp-batch-header {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--rouge-fonce);
    border-bottom: 2px solid var(--rouge-principal);
    padding-bottom: 5px;
}

.tp-batch-content {
    display: flex;
    flex-direction: column;
    gap: 15px;
    flex-grow: 1;
}

.tp-batch-content .tp-card {
    margin: 0;
}