/**
 * InterreAction Website Styles
 * Modern responsive design with mint green and coral color scheme
 */

/* ===== Reset & Base Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-mint: #7dd3a8;
    --color-mint-light: #a8e6c7;
    --color-mint-dark: #5cb88a;
    --color-coral: #ff9f7f;
    --color-coral-light: #ffb89d;
    --color-coral-dark: #e88865;
    --color-dark: #2c3e50;
    --color-light: #ffffff;
    --color-gray: #6c757d;
    --color-gray-light: #e9ecef;
    --color-border: #dee2e6;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    --container-max: 1200px;
    --border-radius: 16px;
    --border-radius-sm: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--color-dark);
    background-color: #f8f9fa;
    overflow-x: hidden;
}

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

/* ===== Header & Navigation ===== */
.header {
    background-color: var(--color-light);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-mint-dark);
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.5rem;
}

.nav-menu a {
    color: var(--color-dark);
    text-decoration: none;
    padding: 0.6rem 1.2rem;
    transition: var(--transition);
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    font-size: 0.95rem;
}

.nav-menu a:hover {
    background-color: var(--color-mint-light);
    color: var(--color-dark);
    transform: translateY(-2px);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.menu-toggle span {
    width: 28px;
    height: 3px;
    background-color: var(--color-dark);
    margin: 4px 0;
    transition: var(--transition);
    border-radius: 3px;
}

/* ===== Presentation Section ===== */
.section-presentation {
    background: linear-gradient(135deg, var(--color-mint) 0%, var(--color-mint-light) 100%);
    padding: var(--spacing-xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.section-presentation::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 70%);
    border-radius: 50%;
}

.section-presentation h1 {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    font-weight: 800;
    letter-spacing: -2px;
    color: var(--color-dark);
    position: relative;
}

.section-presentation .description {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
    color: var(--color-dark);
    opacity: 0.9;
    position: relative;
}

/* ===== Activities Section ===== */
.section-activities {
    background: linear-gradient(to bottom, #f8f9fa 0%, #ffffff 100%);
    padding: var(--spacing-xl) 0;
}

.section-activities h2 {
    text-align: center;
    margin-bottom: var(--spacing-sm);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-dark);
}

.subtitle {
    display: block;
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--color-gray);
    margin-top: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

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

.activity-card {
    background-color: var(--color-light);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.activity-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.activity-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-coral-light) 0%, var(--color-coral) 100%);
}

.activity-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.activity-card:hover .activity-image img {
    transform: scale(1.05);
}

.activity-image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-style: italic;
    font-size: 1.1rem;
}

.activity-content {
    padding: var(--spacing-md);
}

.activity-content h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.4rem;
    color: var(--color-dark);
    font-weight: 600;
}

.activity-content p {
    color: var(--color-gray);
    line-height: 1.7;
}

/* ===== Events Section ===== */
.section-events {
    background: linear-gradient(135deg, var(--color-coral-light) 0%, var(--color-coral) 100%);
    padding: var(--spacing-xl) 0;
}

.section-events h2 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
}

.events-list {
    max-width: 900px;
    margin: 0 auto;
}

.event-item {
    background-color: var(--color-light);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: var(--spacing-md);
    align-items: center;
    transition: var(--transition);
}

.event-item:hover {
    transform: translateX(8px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.event-date {
    font-weight: 700;
    font-size: 1.2rem;
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(135deg, var(--color-mint) 0%, var(--color-mint-dark) 100%);
    border-radius: var(--border-radius-sm);
    text-align: center;
    min-width: 120px;
    box-shadow: 0 4px 10px rgba(125, 211, 168, 0.3);
}

.event-content h3 {
    margin-bottom: var(--spacing-xs);
    font-size: 1.3rem;
    color: var(--color-dark);
}

.event-content p {
    color: var(--color-gray);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.event-link {
    display: inline-block;
    padding: 0.6rem 1.5rem;
    background: linear-gradient(135deg, var(--color-mint) 0%, var(--color-mint-dark) 100%);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition);
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 4px 10px rgba(125, 211, 168, 0.3);
}

.event-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(125, 211, 168, 0.4);
}

.event-image {
    width: 140px;
    height: 140px;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.event-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ===== Links Section ===== */
.section-links {
    background: linear-gradient(to bottom, #ffffff 0%, #f8f9fa 100%);
    padding: var(--spacing-xl) 0;
}

.section-links h2 {
    text-align: center;
    margin-bottom: var(--spacing-sm);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-dark);
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.link-card {
    background-color: var(--color-light);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.link-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    border-color: var(--color-mint);
}

.link-card a {
    display: block;
    padding: var(--spacing-md);
    text-decoration: none;
    color: var(--color-dark);
    min-height: 120px;
}

.link-card h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-dark);
}

.link-card p {
    color: var(--color-gray);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ===== Footer Section ===== */
.section-footer {
    background: linear-gradient(135deg, var(--color-dark) 0%, #1a252f 100%);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    color: white;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-col h2 {
    margin-bottom: var(--spacing-md);
    font-size: 1.8rem;
    color: var(--color-mint-light);
}

/* Contact Form */
.contact-form {
    background-color: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-sm);
    font-family: inherit;
    font-size: 1rem;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    transition: var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-mint);
    background-color: rgba(255, 255, 255, 0.15);
}

.form-group textarea {
    resize: vertical;
}

.btn {
    padding: 0.9rem 2rem;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-mint) 0%, var(--color-mint-dark) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(125, 211, 168, 0.4);
}

.alert {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.alert-success {
    background-color: rgba(125, 211, 168, 0.2);
    color: var(--color-mint-light);
    border: 1px solid var(--color-mint);
}

.alert-error {
    background-color: rgba(255, 159, 127, 0.2);
    color: var(--color-coral-light);
    border: 1px solid var(--color-coral);
}

.contact-email,
.donation-info,
.statutes-info {
    background-color: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-top: var(--spacing-md);
    line-height: 1.8;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-light);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        display: none;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .section-presentation h1 {
        font-size: 2.2rem;
    }
    
    .activities-grid {
        grid-template-columns: 1fr;
    }
    
    .event-item {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .event-date {
        justify-self: center;
    }
    
    .event-image {
        justify-self: center;
    }
    
    .links-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-md: 1rem;
        --spacing-lg: 1.5rem;
        --spacing-xl: 2.5rem;
    }
    
    .section-presentation h1 {
        font-size: 1.8rem;
    }
    
    .section-activities h2,
    .section-events h2,
    .section-links h2 {
        font-size: 1.8rem;
    }
}