:root {
    --primary-blue: #1e3a5c;
    --secondary-blue: #2c5e8c;
    --light-blue: #4a86c7;
    --pale-blue: #e6f0fa;
    --accent-blue: #87bde8;
    --white: #ffffff;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
}

.navbar {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar-brand {
    font-weight: bold;
    color: var(--white) !important;
}

.nav-link {
    color: rgba(255,255,255,0.9) !important;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-link:hover, .nav-link.active {
    color: var(--white) !important;
    text-shadow: 0 0 5px rgba(255,255,255,0.5);
}

/* Hero Section avec Background Image */
.hero-section {
    background: 
        linear-gradient(
            rgba(30, 58, 92, 0.7), 
            rgba(44, 94, 140, 0.5)
        ),
        url('./img/im3.jpg') 
        no-repeat center center;
    background-size: cover;
    background-attachment: fixed;
    color: var(--white);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-overlay {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
}

.hero-content {
    width: 100%;
    text-align: center;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 3rem;
    opacity: 0.95;
    text-shadow: 1px 1px 4px rgba(0,0,0,0.5);
    animation: fadeInUp 1s ease-out 0.3s both;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    margin-bottom: 3rem;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-buttons .btn {
    margin: 0 10px;
    padding: 15px 30px;
    font-size: 1.1rem;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.hero-scroll {
    animation: fadeInUp 1s ease-out 0.9s both;
}

.scroll-down {
    color: var(--white);
    font-size: 2rem;
    text-decoration: none;
    display: inline-block;
    animation: bounce 2s infinite;
    transition: color 0.3s;
}

.scroll-down:hover {
    color: var(--accent-blue);
}

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

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

.section-title {
    color: var(--primary-blue);
    position: relative;
    padding-bottom: 15px;
    margin-bottom: 40px;
    font-weight: 600;
}

.section-title:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--light-blue);
    border-radius: 2px;
}

.section-title.left-align {
    text-align: left;
}

.section-title.left-align:after {
    left: 0;
    transform: none;
}

.feature-box {
    padding: 40px 25px;
    border-radius: 10px;
    transition: transform 0.3s, box-shadow 0.3s;
    margin-bottom: 30px;
    background-color: var(--white);
    border: 1px solid var(--pale-blue);
    text-align: center;
    height: 100%;
}

.feature-box:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(30, 58, 92, 0.1);
    border-color: var(--accent-blue);
}

.feature-icon {
    font-size: 3rem;
    color: var(--secondary-blue);
    margin-bottom: 25px;
    display: inline-block;
    padding: 20px;
    border-radius: 50%;
    background-color: var(--pale-blue);
    transition: transform 0.3s;
}

.feature-box:hover .feature-icon {
    transform: scale(1.1);
}

.feature-box h4 {
    color: var(--primary-blue);
    margin-bottom: 15px;
    font-weight: 600;
}

.mass-times {
    background-color: var(--pale-blue);
    padding: 80px 0;
}

.mass-card {
    background-color: var(--white);
    border-radius: 10px;
    padding: 25px;
    margin-bottom: 25px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    border-left: 5px solid var(--light-blue);
    transition: transform 0.3s;
}

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

.mass-card h4 {
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary-blue) 0%, var(--light-blue) 100%);
    border: none;
    padding: 12px 30px;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(44, 94, 140, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 7px 20px rgba(44, 94, 140, 0.4);
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
}

.btn-outline-primary {
    color: var(--secondary-blue);
    border: 2px solid var(--secondary-blue);
    padding: 10px 25px;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-outline-primary:hover {
    background-color: var(--secondary-blue);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(44, 94, 140, 0.3);
}

.btn-outline-light {
    border: 2px solid var(--white);
    padding: 10px 25px;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s;
    background: transparent;
    color: var(--white);
}

.btn-outline-light:hover {
    background-color: var(--white);
    color: var(--secondary-blue);
    transform: translateY(-3px);
}

footer {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: var(--white);
    padding: 60px 0 30px;
}

footer h5 {
    color: var(--white);
    margin-bottom: 20px;
    font-weight: 600;
}

footer a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: color 0.3s;
}

footer a:hover {
    color: var(--white);
}

.social-icons {
    display: flex;
    gap: 10px;
}

.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255,255,255,0.1);
    border-radius: 50%;
    text-decoration: none;
    transition: all 0.3s;
}

.social-icon:hover {
    background-color: var(--white);
    color: var(--secondary-blue);
    transform: translateY(-3px);
}

.contact-section {
    background-color: var(--white);
    padding: 80px 0;
}

.contact-info {
    background-color: var(--pale-blue);
    padding: 30px;
    border-radius: 10px;
    height: 100%;
}

.contact-info h4 {
    color: var(--primary-blue);
    margin-bottom: 20px;
}

.bg-light-custom {
    background-color: var(--pale-blue) !important;
}

.form-control:focus {
    border-color: var(--light-blue);
    box-shadow: 0 0 0 0.25rem rgba(74, 134, 199, 0.25);
}

.form-check-input:checked {
    background-color: var(--secondary-blue);
    border-color: var(--secondary-blue);
}

.form-section {
    background-color: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(30, 58, 92, 0.1);
    margin: 40px 0;
    border: 1px solid var(--pale-blue);
}

.banner-section {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    padding: 100px 0;
    color: var(--white);
    text-align: center;
}

.banner-section h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.banner-section p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 2rem;
}

.btn-secondary {
    background-color: #6c757d;
    border: none;
    padding: 12px 30px;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background-color: #5a6268;
    transform: translateY(-3px);
}

.required-field::after {
    content: " *";
    color: #dc3545;
}

.form-group {
    margin-bottom: 1.5rem;
}

.alert {
    border-radius: 10px;
    border: none;
    padding: 20px;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin: 10px 0;
        padding: 12px 20px;
    }
    
    .hero-section {
        background-attachment: scroll;
        min-height: 80vh;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .feature-box {
        padding: 30px 15px;
    }
    
    .mass-card {
        padding: 20px;
    }
    
    .hero-buttons .btn {
        font-size: 1rem;
        padding: 10px 15px;
    }
}

/* Effet de parallaxe pour le background */
@media (min-width: 768px) {
    .hero-section {
        background-attachment: fixed;
    }
}