/* DELTA FILTRES - Custom CSS */

:root {
    --primary-color: #4a5568;    /* Gris foncé du logo */
    --secondary-color: #48bb78;   /* Vert du logo */
    --accent-color: #2d3748;     /* Gris très foncé */
    --light-color: #f7fafc;       /* Fond clair */
    --success-color: #48bb78;      /* Vert pour succès */
    --text-dark: #2d3748;         /* Texte principal */
    --text-light: #718096;        /* Texte secondaire */
}

/* General Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
}

/* Navigation */
.navbar {
    background-color: white !important;
    background: white !important;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.6rem;
    display: flex;
    align-items: center;
    color: var(--primary-color) !important;
}

.logo {
    height: 50px;
    width: auto;
    margin-right: 15px;
    max-width: 180px;
    object-fit: contain;
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
    color: var(--dark-color) !important;
}

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

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

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

.hero-image img {
    max-width: 100%;
    height: auto;
    animation: float 3s ease-in-out infinite;
}

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

/* Divider */
.divider {
    height: 4px;
    width: 60px;
    border-radius: 2px;
    margin: 1rem auto;
}

/* Service Cards */
.service-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e9ecef;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.service-icon {
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.service-card:hover .service-icon {
    transform: scale(1.1);
}

/* Product Category Cards */
.product-category-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: none;
}

.product-category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.category-image {
    height: 200px;
    overflow: hidden;
}

.category-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

/* Buttons */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.btn-warning {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: white;
    transition: all 0.3s ease;
}

.btn-warning:hover {
    background-color: #38a169;
    border-color: #38a169;
    transform: translateY(-2px);
}

/* Form Styles */
.form-control, .form-select {
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 0.2rem rgba(72, 187, 120, 0.25);
}

.form-label {
    font-weight: 600;
    color: var(--text-dark);
}

/* Footer */
footer {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--primary-color) 100%);
}

footer a {
    transition: color 0.3s ease;
}

footer a:hover {
    color: var(--secondary-color) !important;
}

.social-links a {
    display: inline-block;
    transition: transform 0.3s ease;
}

.social-links a:hover {
    transform: scale(1.2);
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-section {
        text-align: center;
    }
    
    .hero-section .display-4 {
        font-size: 2rem;
    }
    
    .service-card, .product-category-card {
        margin-bottom: 1.5rem;
    }
    
    .category-image {
        height: 150px;
    }
    
    .logo {
        height: 40px;
        max-width: 140px;
        margin-right: 10px;
    }
    
    .navbar-brand {
        font-size: 1.4rem;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Success Message */
.success-message {
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    display: none;
}

/* Product Details Modal */
.modal-header {
    background-color: var(--primary-color);
    color: white;
}

.modal-header .btn-close {
    filter: brightness(0) invert(1);
}

/* SEO Optimization */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus States */
.btn:focus, .form-control:focus, .form-select:focus, .nav-link:focus {
    outline: 2px solid var(--secondary-color);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .navbar, footer, .btn, .modal {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .hero-section {
        background: none !important;
        color: black !important;
    }
}