:root {
    --primary-color: #2d5a27; /* Vert Sapin default */
    --accent-color: #d4a373; /* Terre/Beige */
    --bg-color: #f4f1ea; /* Beige Crème */
    --text-color: #333333;
    --heading-font: 'Playfair Display', serif;
    --body-font: 'Lato', sans-serif;
}

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

body {
    font-family: var(--body-font);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3 {
    font-family: var(--heading-font);
    font-weight: 700;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s;
}

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--accent-color);
    margin: 10px auto;
    border-radius: 2px;
}

.cta-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 30px;
    font-size: 1rem;
    cursor: pointer;
    border-radius: 30px;
    font-family: var(--body-font);
    transition: transform 0.2s, background-color 0.2s;
}

.cta-btn:hover {
    background-color: #1e3d1a;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 8px 20px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: bold;
    transition: 0.3s;
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

/* Theme Picker */
.theme-picker {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: white;
    padding: 10px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 999;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    height: 70px;
    display: flex;
    align-items: center;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo-placeholder {
    font-family: var(--heading-font);
    font-weight: bold;
    font-size: 1.5rem;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 5px 15px;
    border-radius: 50% 40% 60% 30% / 40% 50% 60% 50%; /* Organic shape */
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 25px;
}

.nav-links a {
    font-weight: 500;
    color: #555;
    position: relative;
}

.nav-links a.active, .nav-links a:hover {
    color: var(--primary-color);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-color);
    transform: scaleX(1);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('https://cieenghien.be/wp-content/uploads/2021/06/Image2bb.jpg');
    background-size: cover;
    background-position: center;
    filter: brightness(0.7);
    z-index: -2;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.hero-content p {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    font-weight: 300;
}

.organic-shape-bottom {
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    line-height: 0;
}

.organic-shape-bottom svg {
    display: block;
    width: 100%;
    height: 150px;
}

/* Page Sections */
.page-section {
    padding: 100px 0;
    min-height: 60vh;
}

.page-section:nth-child(even) {
    background-color: #fff;
}

/* Le CIE / Presentation */
.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.text-block p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.organic-img {
    width: 100%;
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    box-shadow: 10px 10px 30px rgba(0,0,0,0.1);
    transition: border-radius 1s ease;
}

.organic-img:hover {
    border-radius: 70% 30% 30% 70% / 70% 70% 30% 30%;
}

/* Agenda */
.agenda-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.event-card {
    background: white;
    padding: 20px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    gap: 30px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s;
}

.event-card:hover {
    transform: translateY(-5px);
}

.event-date {
    background: var(--bg-color);
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    min-width: 80px;
}

.event-date .day {
    display: block;
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary-color);
}

.event-date .month {
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.event-details {
    flex-grow: 1;
}

.event-details h3 {
    margin-bottom: 5px;
    color: var(--primary-color);
}

.event-details .time, .event-details .location {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 2px;
}

/* Activities */
.activities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.activity-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
    transition: 0.3s;
}

.activity-card:hover {
    transform: translateY(-10px);
}

.activity-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.activity-card .card-content {
    padding: 25px;
}

.activity-card h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

/* Form Styles (Ideas & Contact) */
.form-container, .contact-layout {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
}

.form-control {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-family: var(--body-font);
    font-size: 1rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(45, 90, 39, 0.1);
}

/* Support */
.support-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.donation-box {
    background: white;
    padding: 40px;
    border-radius: 20px;
    border: 2px dashed var(--primary-color);
}

.iban-card {
    background: var(--bg-color);
    padding: 20px;
    margin: 20px 0;
    border-radius: 10px;
}

.iban {
    font-family: monospace;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    display: block;
    margin: 10px 0;
}

/* Footer */
footer {
    background: var(--primary-color);
    color: white;
    padding: 30px 0;
    text-align: center;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }

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

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none; /* Hide for now, toggle logic in JS */
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: white;
        padding: 20px;
        box-shadow: 0 10px 10px rgba(0,0,0,0.1);
    }

    .nav-links.mobile-active {
        display: flex;
    }

    .menu-toggle {
        display: flex;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

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

    .contact-layout {
        grid-template-columns: 1fr;
    }
    
    .event-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .event-date {
        width: 100%;
        display: flex;
        justify-content: center;
        gap: 10px;
        align-items: baseline;
    }
}