:root {
    --cosama-blue: #1B75BC;
    --cosama-dark: #2C3E50;
    --cosama-light: #E8F4F8;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.bg-cosama {
    background: linear-gradient(135deg, var(--cosama-blue), var(--cosama-dark)) !important;
}

.btn-cosama {
    background: var(--cosama-blue);
    color: white;
    border: none;
    transition: all 0.3s ease;
}

.btn-cosama:hover {
    background: var(--cosama-dark);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.hero-section {
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.6)),
                url('https://images.pexels.com/photos/1010657/pexels-photo-1010657.jpeg');
    background-size: cover;
    background-position: center;
    min-height: 500px;
    display: flex;
    align-items: center;
    position: relative;
}

.hero-overlay {
    width: 100%;
    padding: 100px 0;
}

.feature-box {
    padding: 30px;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.feature-box:hover {
    background: var(--cosama-light);
    transform: translateY(-5px);
}

.card {
    transition: all 0.3s ease;
    border: none;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1) !important;
}

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

.navbar-dark .navbar-nav .nav-link:hover {
    color: white;
    transform: translateY(-2px);
}

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

footer a:hover {
    color: white !important;
}

.alert {
    border: none;
    border-radius: 0;
}

.form-control:focus {
    border-color: var(--cosama-blue);
    box-shadow: 0 0 0 0.2rem rgba(27, 117, 188, 0.25);
}

.btn-primary {
    background-color: var(--cosama-blue);
    border-color: var(--cosama-blue);
}

.btn-primary:hover {
    background-color: var(--cosama-dark);
    border-color: var(--cosama-dark);
}

.text-primary {
    color: var(--cosama-blue) !important;
}

.badge-custom {
    padding: 8px 15px;
    border-radius: 20px;
    font-weight: 500;
}

.status-en-attente {
    background: #ffc107;
    color: #000;
}

.status-confirmee {
    background: #28a745;
    color: #fff;
}

.status-annulee {
    background: #dc3545;
    color: #fff;
}

.table-hover tbody tr:hover {
    background-color: var(--cosama-light);
}

@media (max-width: 768px) {
    .hero-section {
        min-height: 400px;
    }

    .hero-overlay {
        padding: 50px 0;
    }

    .display-3 {
        font-size: 2.5rem;
    }
}