/* ===================================
   VARIABLES & RESET
   =================================== */

:root {
    /* Colors */
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --info-color: #3498db;
    
    /* Water theme colors */
    --water-blue: #3498db;
    --water-dark: #2980b9;
    --marsh-green: #27ae60;
    --dry-orange: #e67e22;
    
    /* Grays */
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-600: #6c757d;
    --gray-800: #343a40;
    --gray-900: #212529;
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Merriweather', serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.2);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--gray-900);
    line-height: 1.6;
    background-color: #fff;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }

p {
    margin-bottom: var(--spacing-sm);
}

a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: var(--transition-normal);
}

a:hover {
    color: var(--water-dark);
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ===================================
   NAVIGATION
   =================================== */

.main-nav {
    background: linear-gradient(135deg, var(--primary-color) 0%, #34495e 100%);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: #fff;
    font-size: 1.5rem;
    font-weight: 700;
    padding: var(--spacing-md) 0;
}

.nav-brand i {
    color: var(--secondary-color);
    font-size: 2rem;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xs);
}

.nav-menu a {
    color: rgba(255,255,255,0.9);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 500;
    transition: var(--transition-normal);
}

.nav-menu a:hover,
.nav-menu a.active {
    background: rgba(255,255,255,0.15);
    color: #fff;
    transform: translateY(-2px);
}

.nav-menu i {
    font-size: 1rem;
}

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

.hero {
    position: relative;
    height: 70vh;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(52, 152, 219, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(46, 204, 113, 0.3) 0%, transparent 50%);
    animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.8; }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.4);
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: #fff;
    padding: var(--spacing-xl);
    max-width: 1000px;
}

.hero-title {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    text-shadow: 2px 2px 10px rgba(0,0,0,0.3);
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
    animation: fadeInUp 1s ease 0.2s backwards;
}

.hero-meta {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    font-size: 1rem;
    animation: fadeInUp 1s ease 0.4s backwards;
}

.hero-meta span {
    background: rgba(255,255,255,0.2);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 50px;
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.hero-meta i {
    color: var(--warning-color);
}

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

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: #fff;
    font-size: 2rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translate(-50%, 0); }
    40% { transform: translate(-50%, -10px); }
    60% { transform: translate(-50%, -5px); }
}

/* ===================================
   SECTIONS
   =================================== */

section {
    padding: var(--spacing-xxl) 0;
}

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

.section-header h2 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.header-line {
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary-color), var(--marsh-green));
    margin: 0 auto var(--spacing-md);
}

.section-desc {
    color: var(--gray-600);
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto;
}

/* ===================================
   INTRO SECTION
   =================================== */

.intro-section {
    background: var(--gray-100);
}

.intro-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.intro-card {
    background: #fff;
    padding: var(--spacing-xl);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

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

.card-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--secondary-color), var(--water-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.card-icon i {
    color: #fff;
    font-size: 2rem;
}

.intro-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.objectives-list {
    list-style: none;
    padding-left: 0;
}

.objectives-list li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-lg);
    position: relative;
}

.objectives-list li::before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--success-color);
}

.target-audience {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.audience-tag {
    background: var(--gray-200);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 20px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.audience-tag i {
    color: var(--secondary-color);
}

/* ===================================
   ENJEUX SECTION
   =================================== */

.enjeux-section {
    background: #fff;
}

.enjeux-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.enjeu-card {
    background: var(--gray-100);
    padding: var(--spacing-xl);
    border-radius: 12px;
    border-left: 5px solid var(--secondary-color);
    transition: var(--transition-normal);
}

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

.enjeu-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.enjeu-icon i {
    color: #fff;
    font-size: 1.8rem;
}

.enjeu-icon.water { background: linear-gradient(135deg, #3498db, #2980b9); }
.enjeu-icon.biodiversity { background: linear-gradient(135deg, #27ae60, #229954); }
.enjeu-icon.agriculture { background: linear-gradient(135deg, #f39c12, #e67e22); }
.enjeu-icon.tourism { background: linear-gradient(135deg, #9b59b6, #8e44ad); }
.enjeu-icon.climate { background: linear-gradient(135deg, #e74c3c, #c0392b); }

.enjeu-card h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: var(--spacing-md);
}

.enjeu-stat {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 2px solid var(--gray-300);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--gray-600);
    font-weight: 600;
}

.enjeu-stat i {
    color: var(--warning-color);
}

/* ===================================
   STRUCTURE TIMELINE
   =================================== */

.structure-section {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.structure-timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.structure-timeline::before {
    content: '';
    position: absolute;
    left: 40px;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, var(--secondary-color), var(--marsh-green));
}

.timeline-item {
    position: relative;
    padding-left: 100px;
    padding-bottom: var(--spacing-xxl);
}

.timeline-marker {
    position: absolute;
    left: 0;
    top: 0;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--secondary-color), var(--water-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    border: 6px solid #fff;
}

.timeline-marker span {
    color: #fff;
    font-size: 2rem;
    font-weight: 700;
}

.timeline-content {
    background: #fff;
    padding: var(--spacing-xl);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.timeline-content h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.timeline-content h3 i {
    color: var(--secondary-color);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid var(--secondary-color);
    color: var(--secondary-color);
    border-radius: 8px;
    font-weight: 600;
    transition: var(--transition-normal);
    margin-top: var(--spacing-md);
}

.btn-outline:hover {
    background: var(--secondary-color);
    color: #fff;
    transform: translateX(5px);
}

/* ===================================
   STATS SECTION
   =================================== */

.stats-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, #34495e 100%);
    color: #fff;
}

.stats-section .section-header h2,
.stats-section .header-line {
    color: #fff;
}

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

.stat-card {
    background: rgba(255,255,255,0.1);
    padding: var(--spacing-xl);
    border-radius: 12px;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: var(--transition-normal);
}

.stat-card:hover {
    background: rgba(255,255,255,0.15);
    transform: translateY(-5px);
}

.stat-icon {
    margin-bottom: var(--spacing-md);
}

.stat-icon i {
    font-size: 3rem;
    color: var(--warning-color);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-sm);
}

.stat-desc {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* ===================================
   MAP SECTION
   =================================== */

.map-section {
    background: var(--gray-100);
}

.map-container {
    background: #fff;
    padding: var(--spacing-xl);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.territory-map {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

.territory-map .zone-mouille {
    transition: var(--transition-normal);
}

.territory-map .zone-mouille:hover {
    filter: brightness(1.1);
    cursor: pointer;
}

.territory-map .zone-desseche {
    transition: var(--transition-normal);
}

.territory-map .zone-desseche:hover {
    filter: brightness(1.1);
    cursor: pointer;
}

.territory-map .city:hover {
    transform: scale(1.2);
    cursor: pointer;
}

.map-description {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-xl);
    background: var(--gray-100);
    border-radius: 8px;
    border-left: 5px solid var(--secondary-color);
}

.map-description h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.map-description h3 i {
    color: var(--info-color);
}

/* ===================================
   CTA SECTION
   =================================== */

.cta-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    text-align: center;
}

.cta-section h2 {
    color: #fff;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.cta-section p {
    font-size: 1.2rem;
    opacity: 0.95;
    margin-bottom: var(--spacing-xl);
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition-normal);
}

.btn-primary {
    background: #fff;
    color: var(--primary-color);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.btn-secondary {
    background: rgba(255,255,255,0.2);
    color: #fff;
    border: 2px solid #fff;
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-3px);
}

/* ===================================
   FOOTER
   =================================== */

.main-footer {
    background: var(--primary-color);
    color: rgba(255,255,255,0.9);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

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

.footer-section h4 {
    color: #fff;
    margin-bottom: var(--spacing-md);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: rgba(255,255,255,0.8);
}

.footer-section a:hover {
    color: #fff;
    padding-left: 5px;
}

.footer-section i {
    color: var(--secondary-color);
    margin-right: var(--spacing-xs);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255,255,255,0.1);
}

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

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-meta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .nav-toggle {
        display: block;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--primary-color);
        flex-direction: column;
        padding: var(--spacing-md);
        display: none;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .intro-grid,
    .enjeux-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .structure-timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        padding-left: 60px;
    }
    
    .timeline-marker {
        width: 50px;
        height: 50px;
    }
    
    .timeline-marker span {
        font-size: 1.5rem;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.8rem; }
    h3 { font-size: 1.5rem; }
}

/* ===================================
   UTILITY CLASSES
   =================================== */

.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }