/* Variables CSS */
:root {
    --primary-color: #dc2626;
    --accent-color: #fbbf24;
    --dark-color: #1f2937;
    --light-color: #f8fafc;
    --text-dark: #374151;
    --text-light: #6b7280;
    --gradient-bg: linear-gradient(135deg, #dc2626 0%, #7c2d12 100%);
    --shadow-light: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-heavy: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

.text-accent {
    color: var(--accent-color) !important;
}

/* Navigation */
.navbar {
    background: rgba(31, 41, 55, 0.95) !important;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    padding: 1rem 0;
}

.navbar-scrolled {
    background: rgba(31, 41, 55, 1) !important;
    padding: 0.5rem 0;
}

.navbar-logo {
    height: 50px;
    width: auto;
    transition: all 0.3s ease;
}

.navbar-scrolled .navbar-logo {
    height: 40px;
}

.brand-text {
    font-family: 'Oswald', sans-serif;
    font-weight: 700;
    font-size: 1.5rem;
    color: white;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* Fallback avec gradient pour navigateurs supportant */
@supports (-webkit-background-clip: text) {
    .brand-text {
        background: var(--gradient-bg);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        text-shadow: none;
    }
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    margin: 0 0.5rem;
}

.navbar-nav .nav-link:hover {
    color: var(--accent-color) !important;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.navbar-nav .nav-link:hover::after {
    width: 100%;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.9), rgba(124, 45, 18, 0.9)),
                url('https://images.unsplash.com/photo-1544717684-c6b7a5a9e6ca?w=1920') center/cover;
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: 80px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
}

.hero-content {
    z-index: 2;
    position: relative;
}

.hero-title {
    font-family: 'Oswald', sans-serif;
    font-size: 4rem;
    font-weight: 700;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-style: italic;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-description {
    font-size: 1.2rem;
    color: white;
    margin-bottom: 2rem;
    line-height: 1.8;
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-buttons {
    animation: fadeInUp 1s ease 0.6s both;
}

.hero-buttons .btn {
    margin: 0.5rem 1rem 0.5rem 0;
    padding: 1rem 2rem;
    font-weight: 500;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.btn-primary {
    background: var(--gradient-bg);
    border: none;
    box-shadow: var(--shadow-medium);
}

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

.btn-outline-light:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--dark-color);
}

/* Floating Elements */
.hero-image {
    position: relative;
    z-index: 2;
}

.floating-elements {
    position: relative;
}

.floating-badge {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 1rem 1.5rem;
    color: white;
    font-weight: 500;
    animation: float 3s ease-in-out infinite;
}

.floating-badge:first-child {
    top: 20%;
    right: 20%;
    animation-delay: 0s;
}

.floating-badge.badge-2 {
    bottom: 30%;
    left: 10%;
    animation-delay: 1.5s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Section Styles */
.section-title {
    font-family: 'Oswald', sans-serif;
    font-size: 3rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.title-underline {
    width: 80px;
    height: 4px;
    background: var(--gradient-bg);
    margin: 0 auto 2rem;
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about-section {
    padding: 5rem 0;
}

.about-content h3 {
    font-family: 'Oswald', sans-serif;
    color: var(--primary-color);
    font-size: 2rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.feature-item {
    display: flex;
    align-items: center;
    padding: 1rem;
    background: var(--light-color);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.feature-item i {
    font-size: 1.5rem;
    margin-right: 1rem;
}

.image-card {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    transition: all 0.3s ease;
}

.image-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-heavy);
}

.affiliations {
    background: white;
    padding: 1.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow-light);
}

.affiliation-badge {
    text-align: center;
    padding: 1rem;
    background: var(--light-color);
    border-radius: 10px;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.affiliation-badge:hover {
    background: var(--primary-color);
    color: white;
}

.affiliation-logo {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.country-flags .flags-image {
    height: 60px;
    width: auto;
    object-fit: contain;
    transition: all 0.3s ease;
}

.country-flags .flags-image:hover {
    transform: scale(1.1);
}

/* Gallery Section */
.gallery-section {
    background: var(--light-color);
}

.gallery-item {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    transition: all 0.3s ease;
    height: 300px;
}

.gallery-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.5s ease;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.8), rgba(124, 45, 18, 0.8));
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s ease;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-content {
    text-align: center;
    color: white;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

.gallery-item:hover .gallery-content {
    transform: translateY(0);
}

.gallery-content h5 {
    font-family: 'Oswald', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--accent-color);
}

.gallery-content p {
    font-size: 1rem;
    margin: 0;
    color: white;
}

/* Cards */
.discipline-card, .team-card, .public-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
    height: 100%;
    border: 2px solid transparent;
}

.discipline-card:hover, .team-card:hover, .public-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
    border-color: var(--accent-color);
}

.discipline-icon, .public-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.team-image {
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: 1.5rem;
    position: relative;
}

.team-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: all 0.3s ease;
}

.team-card:hover .team-image img {
    transform: scale(1.1);
}

.team-role {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* Schedule Section */
.schedule-card {
    background: white;
    border-radius: 20px;
    padding: 3rem;
    box-shadow: var(--shadow-medium);
    margin-bottom: 2rem;
}

.schedule-day {
    margin-bottom: 3rem;
}

.schedule-day h4 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-family: 'Oswald', sans-serif;
}

.schedule-times {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.schedule-time {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: var(--light-color);
    border-radius: 10px;
    border-left: 4px solid var(--accent-color);
    gap: 1rem;
}

.schedule-time .time {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.schedule-time .group {
    color: var(--text-dark);
    text-align: right;
}

/* Contact Section */
.contact-section {
    background: var(--dark-color);
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(10px);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1.5rem;
    font-size: 1.5rem;
    color: white;
}

.contact-details h6 {
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.contact-details a {
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.contact-details a:hover {
    color: var(--accent-color);
}

.contact-form {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.contact-form .form-control {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    border-radius: 10px;
    padding: 1rem;
}

.contact-form .form-select {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--dark-color);
    border-radius: 10px;
    padding: 1rem;
}

.contact-form .form-select option {
    background: white;
    color: var(--dark-color);
    padding: 0.5rem;
}

.contact-form .form-control::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.contact-form .form-control:focus {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--accent-color);
    color: white;
    box-shadow: 0 0 0 0.2rem rgba(251, 191, 36, 0.25);
}

.contact-form .form-select:focus {
    background: white;
    border-color: var(--accent-color);
    color: var(--dark-color);
    box-shadow: 0 0 0 0.2rem rgba(251, 191, 36, 0.25);
}

.btn-accent {
    background: var(--gradient-bg);
    border: none;
    color: white;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-heavy);
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

/* Footer */
.footer {
    background: var(--dark-color);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.social-links a {
    display: inline-block;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    text-align: center;
    line-height: 50px;
    color: white;
    margin: 0 0.5rem;
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-links a:hover {
    background: var(--accent-color);
    color: var(--dark-color);
    transform: translateY(-3px);
}

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

.fade-in {
    animation: fadeInUp 0.8s ease;
}

/* Alerts pour Formspree */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 10px;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    font-weight: 500;
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    border-color: rgba(34, 197, 94, 0.3);
    color: #166534;
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
    color: #991b1b;
}

.alert i {
    margin-right: 0.5rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .schedule-time {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
    
    .floating-badge {
        position: static;
        display: inline-block;
        margin: 1rem;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin: 0.5rem 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

/* Scroll animations */
.scroll-animation {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}

.scroll-animation.animate {
    opacity: 1;
    transform: translateY(0);
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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