/*
 * CSS ZEN GARDEN DEMO - THÈME MODERN
 * ===================================
 * 
 * Design moderne et contemporain
 * - Gradients colorés
 * - Ombres portées
 * - Animations fluides
 * - Cards et layouts modernes
 * 
 * Créé pour LP DWCA - Université de Strasbourg
 * Par Mikail Lekesiz - 2025/2026
 */

/* ===== IMPORTS ===== */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap');

/* ===== RESET ET BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    font-size: 16px;
    line-height: 1.8;
    color: #2d3748;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

/* ===== TYPOGRAPHIE ===== */
h1, h2, h3 {
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

p {
    margin-bottom: 1.25rem;
}

a {
    color: #667eea;
    text-decoration: none;
    position: relative;
    transition: all 0.3s ease;
}

a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transition: width 0.3s ease;
}

a:hover::after {
    width: 100%;
}

strong {
    font-weight: 600;
    color: #667eea;
}

/* ===== HEADER ===== */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
    padding: 6rem 2rem;
    border-radius: 20px;
    margin-bottom: 3rem;
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.4);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.header-content {
    position: relative;
    z-index: 1;
}

.main-title {
    font-size: 4.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 4px 20px rgba(0,0,0,0.2);
    animation: fadeInDown 1s ease;
}

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

.subtitle {
    font-size: 1.75rem;
    font-weight: 300;
    margin-bottom: 1rem;
    opacity: 0.95;
}

.tagline {
    font-size: 1.1rem;
    opacity: 0.9;
    font-style: italic;
}

/* ===== MAIN CONTENT ===== */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
}

section {
    background: white;
    padding: 3rem;
    margin-bottom: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

section:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(0,0,0,0.15);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    border-radius: 2px;
}

/* Download Box */
.download-box {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: 2.5rem;
    margin: 2rem 0;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(245, 87, 108, 0.3);
}

.download-box h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.download-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.download-btn {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: white;
    color: #f5576c;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

/* Benefits Grid */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.benefit-card {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 2.5rem 2rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.benefit-card:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 15px 40px rgba(0,0,0,0.2);
}

.benefit-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    display: inline-block;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.benefit-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: #667eea;
}

.benefit-description {
    font-size: 1rem;
    color: #4a5568;
}

/* Requirements List */
.requirements-list {
    list-style: none;
    margin-top: 2rem;
}

.requirement-item {
    padding: 1.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: all 0.3s ease;
}

.requirement-item:hover {
    transform: translateX(10px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.requirement-icon {
    font-size: 1.5rem;
    color: #48bb78;
    font-weight: bold;
}

/* ===== SIDEBAR ===== */
.sidebar {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.sidebar-section {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.sidebar-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #667eea;
}

.theme-list,
.resource-list {
    list-style: none;
}

.theme-item,
.resource-item {
    margin-bottom: 0.75rem;
}

.theme-link,
.resource-link {
    display: block;
    padding: 1rem;
    background: #f7fafc;
    border-radius: 8px;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.theme-link:hover,
.resource-link:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    transform: translateX(5px);
    border-left-color: white;
}

.theme-name {
    display: block;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.theme-author {
    display: block;
    font-size: 0.85rem;
    opacity: 0.8;
}

.about-text {
    font-size: 0.95rem;
    color: #4a5568;
    margin-bottom: 1rem;
}

/* ===== FOOTER ===== */
.page-footer {
    background: white;
    max-width: 1200px;
    margin: 3rem auto 0;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    text-align: center;
}

.footer-text {
    font-size: 1rem;
    color: #4a5568;
    margin-bottom: 0.75rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.footer-link-item {
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.footer-link-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    .main-title {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1.25rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    section {
        padding: 2rem 1.5rem;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .download-buttons {
        flex-direction: column;
    }
    
    .sidebar {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 2rem;
    }
    
    .page-header {
        padding: 3rem 1rem;
    }
}