/* ========================================
   DESIGN SYSTEM MODERNE - LYCÉE JEAN NICOLI
   ======================================== */

/* === VARIABLES CSS === */
:root {
    /* Couleurs principales */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-blue: #667eea;
    --primary-purple: #764ba2;

    /* Couleurs neutres */
    --text-dark: #2d3748;
    --text-medium: #4a5568;
    --text-light: #718096;
    --text-lighter: #a0aec0;

    /* Backgrounds */
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-lighter: #f1f3f5;

    /* Bordures */
    --border-color: #e8e8e8;
    --border-light: #f0f0f0;

    /* Ombres */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 30px rgba(102, 126, 234, 0.15);
    --shadow-hover: 0 12px 40px rgba(102, 126, 234, 0.2);

    /* Espacements */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 50px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Conteneur */
    --container-max-width: 1400px;
}

/* === UTILITAIRES DE BASE === */
.container-content {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

@media (max-width: 768px) {
    .container-content {
        padding: 0 var(--spacing-sm);
    }
}

/* === CARDS === */
.modern-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.modern-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.modern-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-light);
}

.modern-card-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--primary-gradient);
    color: white;
    font-size: 1.2rem;
}

.modern-card-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0;
}

/* === HERO SECTION MODERNE === */
.hero-banner {
    width: 100%;
    background: var(--primary-gradient);
    padding: var(--spacing-xl) 0;
    position: relative;
    overflow: hidden;
}

.hero-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-banner-content {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: white;
}

.hero-banner-icon {
    font-size: 3rem;
    opacity: 0.9;
}

.hero-banner-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin: 0;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-banner-subtitle {
    font-size: 1.2rem;
    margin: 0.5rem 0 0;
    opacity: 0.95;
}

@media (max-width: 768px) {
    .hero-banner {
        padding: var(--spacing-lg) 0;
    }

    .hero-banner-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }

    .hero-banner-icon {
        font-size: 2rem;
    }

    .hero-banner-title {
        font-size: 1.8rem;
    }

    .hero-banner-subtitle {
        font-size: 1rem;
    }
}

/* === SECTIONS === */
.modern-section {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-white);
}

.modern-section:nth-child(even) {
    background: var(--bg-light);
}

.modern-section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.modern-section-title {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.modern-section-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
}

/* === BOUTONS === */
.btn-modern {
    background: var(--primary-gradient);
    color: white;
    border: none;
    padding: 0.85rem 1.8rem;
    border-radius: var(--radius-full);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
}

.btn-modern:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-modern-secondary {
    background: var(--bg-white);
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

.btn-modern-secondary:hover {
    background: var(--primary-gradient);
    color: white;
    border-color: transparent;
}

.btn-modern-large {
    padding: 1.1rem 2.5rem;
    font-size: 1.1rem;
}

/* === GRILLES === */
.modern-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.modern-grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.modern-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.modern-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {

    .modern-grid-3,
    .modern-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {

    .modern-grid-2,
    .modern-grid-3,
    .modern-grid-4 {
        grid-template-columns: 1fr;
    }
}

/* === BADGES === */
.modern-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.4rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.modern-badge-gradient {
    background: var(--primary-gradient);
    color: white;
}

.modern-badge-light {
    background: var(--bg-lighter);
    color: var(--text-medium);
}

.modern-badge-success {
    background: #d4edda;
    color: #155724;
}

/* === ANIMATIONS === */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

/* Classes utilitaires standardisées (durée 0.6s) */
.animate-fade-in {
    animation: fadeIn 0.6s ease forwards;
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

.animate-slide-in-left {
    animation: slideInLeft 0.6s ease forwards;
}

.animate-slide-in-right {
    animation: slideInRight 0.6s ease forwards;
}

.animate-slide-up {
    animation: slideUp 0.6s ease forwards;
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

/* Délais d'animation pour les items multiples */
.animate-delay-1 {
    animation-delay: 0.1s;
}

.animate-delay-2 {
    animation-delay: 0.2s;
}

.animate-delay-3 {
    animation-delay: 0.3s;
}

.animate-delay-4 {
    animation-delay: 0.4s;
}

.animate-delay-5 {
    animation-delay: 0.5s;
}

.animate-delay-6 {
    animation-delay: 0.6s;
}

/* Classes pour animations au scroll (IntersectionObserver) */
.scroll-animate {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-animate-fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-animate-fade-up.animated {
    opacity: 1;
    transform: translateY(0);
}

.scroll-animate-slide-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-animate-slide-left.animated {
    opacity: 1;
    transform: translateX(0);
}

.scroll-animate-slide-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-animate-slide-right.animated {
    opacity: 1;
    transform: translateX(0);
}

/* === TYPOGRAPHIE === */
.text-gradient {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-large {
    font-size: 1.2rem;
    line-height: 1.7;
}

.text-center {
    text-align: center;
}

/* === DIVIDERS === */
.modern-divider {
    height: 2px;
    background: var(--primary-gradient);
    margin: var(--spacing-xl) 0;
    border: none;
    border-radius: var(--radius-full);
}

/* === INFOCARDS === */
.info-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.info-card {
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border-top: 4px solid transparent;
    border-image: var(--primary-gradient) 1;
    transition: all var(--transition-normal);
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.info-card-icon {
    font-size: 2.5rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.info-card-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: var(--spacing-xs);
}

.info-card-text {
    color: var(--text-medium);
    line-height: 1.6;
}

/* === STATS === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.stat-card {
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    color: var(--text-medium);
    font-size: 1rem;
    font-weight: 500;
}

/* === RESPONSIVE HELPERS === */
@media (max-width: 768px) {
    .hide-mobile {
        display: none !important;
    }
}

@media (min-width: 769px) {
    .hide-desktop {
        display: none !important;
    }
}

/* === SCROLLBAR MODERNE === */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-gradient);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #5568d3 0%, #65388b 100%);
}