/* CSS Custom Properties (Variables) */
:root {
    /* Colors */
    --color-primary: #2b6cb0;
    --color-primary-dark: #2c5282;
    --color-secondary: #38b2ac;
    --color-secondary-dark: #319795;
    --color-accent-blue: #3182ce;
    --color-accent-light-blue: #4299e1;
    --color-accent-green: #38a169;
    --color-accent-green-dark: #2f855a;
    --color-accent-yellow: #d69e2e;
    --color-accent-red: #e53e3e;
    --color-accent-red-dark: #c53030;
    --color-accent-purple: #805ad5;
    --color-accent-purple-dark: #6b46c1;
    
    --color-text-primary: #2d3748;
    --color-text-secondary: #4a5568;
    --color-text-muted: #718096;
    
    --color-gray-100: #f7fafc;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e0;
    --color-gray-400: #a0aec0;
    --color-gray-900: #1a1a1a;
    
    --color-blue-50: #ebf8ff;
    --color-white: #ffffff;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.8rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 2.5rem;
    --spacing-3xl: 3rem;
    --spacing-4xl: 4rem;
    --spacing-5xl: 5rem;
    
    /* Font sizes */
    --font-sm: 0.85rem;
    --font-base: 1rem;
    --font-lg: 1.1rem;
    --font-xl: 1.2rem;
    --font-2xl: 1.3rem;
    --font-3xl: 1.8rem;
    --font-4xl: 2rem;
    --font-5xl: 2.2rem;
    --font-6xl: 2.5rem;
    
    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --radius-xl: 15px;
    --radius-2xl: 20px;
    --radius-3xl: 25px;
    --radius-full: 50px;
    
    /* Shadows */
    --shadow-sm: 0 2px 10px rgba(0,0,0,0.05);
    --shadow-md: 0 5px 20px rgba(0,0,0,0.1);
    --shadow-lg: 0 5px 25px rgba(0,0,0,0.06);
    --shadow-xl: 0 10px 30px rgba(0,0,0,0.1);
    --shadow-2xl: 0 15px 35px rgba(0,0,0,0.1);
    
    /* Gradients */
    --gradient-primary: linear-gradient(45deg, var(--color-primary), var(--color-primary-dark));
    --gradient-secondary: linear-gradient(45deg, var(--color-secondary), var(--color-secondary-dark));
    --gradient-header: linear-gradient(135deg, var(--color-gray-200) 0%, var(--color-gray-300) 100%);
    --gradient-contact: linear-gradient(135deg, var(--color-gray-300) 0%, var(--color-gray-400) 100%);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--color-text-primary);
    overflow-x: hidden;
}

/* Header */
/* Upper Header (Logo + Portal Link) */
.upper-header {
    background: var(--gradient-header);
}

.upper-header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.4rem var(--spacing-xl);
    min-height: 40px;
}

.upper-header .logo {
    display: flex;
    align-items: center;
    height: 40px;
}

.upper-header .logo img {
    height: 38px;
    width: auto;
    transition: all 0.3s ease;
}

.upper-header .logo img:hover {
    transform: scale(1.05);
}

.portal-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-primary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
}

.portal-link:hover {
    color: var(--color-primary);
    background: rgba(0, 0, 0, 0.03);
}

.portal-link i {
    font-size: 1.1rem;
}

header {
    background: var(--gradient-header);
    color: var(--color-text-primary);
    padding: 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
    backdrop-filter: blur(10px);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.4rem var(--spacing-xl);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    flex-wrap: nowrap;
    white-space: nowrap;
}

.nav-links li {
    position: relative;
}

.nav-links a {
    color: var(--color-text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.nav-links a:hover {
    color: var(--color-primary);
    transform: translateY(-2px);
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background: var(--color-primary);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

/* Dropdown Styles */
.dropdown {
    position: relative;
}

.dropdown-icon {
    font-size: var(--font-sm);
    transition: transform 0.3s ease;
}

.dropdown:hover .dropdown-icon {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 0.75rem 0;
    min-width: 280px;
    width: max-content;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
    margin-top: var(--spacing-xs);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: var(--spacing-md) 1.8rem;
    color: var(--color-text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
    border-radius: 0;
    transform: none;
    font-size: 0.95rem;
}

.dropdown-menu a:hover {
    background: var(--color-gray-100);
    color: var(--color-primary);
    transform: none !important;
    padding-left: 2.2rem;
}

.dropdown-menu a::after {
    display: none; !important;
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none; /* Hidden on desktop */
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-text-primary);
    cursor: pointer;
    padding: 0.5rem;
    transition: all 0.3s ease;
}

.mobile-menu-btn:hover {
    color: var(--color-primary);
}

.mobile-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(226, 232, 240, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--spacing-md) var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.mobile-nav.active {
    display: block;
}

.mobile-nav a {
    display: block;
    color: var(--color-text-primary);
    text-decoration: none;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid rgba(45, 55, 72, 0.1);
    transition: color 0.3s ease;
}

.mobile-nav a:hover {
    color: var(--color-primary);
}

/* Mobile dropdown styles */
.mobile-dropdown {
    position: relative;
}

.mobile-dropdown-toggle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.mobile-dropdown-icon {
    font-size: var(--font-sm);
    transition: transform 0.3s ease;
}

.mobile-dropdown.active .mobile-dropdown-icon {
    transform: rotate(180deg);
}

.mobile-dropdown-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background: rgba(247, 250, 252, 0.9);
    margin: var(--spacing-xs) 0;
    border-radius: var(--radius-sm);
}

.mobile-dropdown.active .mobile-dropdown-menu {
    max-height: 200px;
}

.mobile-dropdown-menu a {
    padding: 0.6rem var(--spacing-md);
    font-size: 0.9rem;
    border-bottom: 1px solid rgba(45, 55, 72, 0.05);
}

.mobile-dropdown-menu a:last-child {
    border-bottom: none;
}

/* Hero Section */
.hero {
    background-size: cover;
    background-position: center 75%;
    background-repeat: no-repeat;
    background-attachment: fixed;
    color: var(--color-white);
    padding: 120px 0 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 1s ease-out;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.cta-button {
    display: inline-block;
    color: var(--color-white);
    background: var(--gradient-primary);
    padding: 15px 40px;
    text-decoration: none;
    border-radius: var(--radius-full);
    font-weight: bold;
    transition: all 0.3s ease;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.cta-button:hover {
    transform: translateY(-3px);
}

/* Common styles for different page types */
.main-content {
    padding: 55px 0;
    background: var(--color-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.content-section {
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: var(--font-3xl);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
    position: relative;
    padding-bottom: 0rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 4px;
    border-radius: 2px;
}

.content-text {
    font-size: var(--font-base);
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

/* Consolidated Grid System */
.features-grid,
.services-grid,
.solutions-grid,
.programs-grid,
.equipment-grid,
.benefits-grid,
.pricing-grid,
.specialties-grid,
.tech-grid {
    display: grid;
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

/* Grid variations */
.features-grid,
.services-grid,
.solutions-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.programs-grid,
.equipment-grid {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

.benefits-grid,
.pricing-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.specialties-grid,
.tech-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Force specific column counts */
.benefits-grid {
    grid-template-columns: repeat(4, 1fr) !important;
}

.tech-grid {
    grid-template-columns: repeat(3, 1fr) !important;
}

/* Consolidated Card System */
.feature-card,
.service-card,
.solution-card,
.program-card,
.equipment-card,
.pricing-card,
.tech-card,
.specialty-item,
.benefit-item {
    background: var(--color-gray-100);
    padding: var(--spacing-md);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
}

.feature-card:hover,
.service-card:hover,
.solution-card:hover,
.program-card:hover,
.equipment-card:hover,
.pricing-card:hover,
.tech-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-2xl);
}

.feature-card h4,
.service-card h3,
.solution-card h4,
.program-card h4,
.equipment-card h4,
.pricing-card h4,
.tech-card h4 {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.feature-card p,
.service-card p,
.solution-card p,
.program-card p,
.equipment-card p {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.solution-features {
    list-style: none;
    padding: 0;
}

.solution-features li {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
    padding-left: var(--spacing-lg);
    position: relative;
    font-size: 0.9rem;
}

.solution-features li::before {
    content: '✔';
    position: absolute;
    left: 0;
    color: var(--color-accent-green);
    font-weight: bold;
}

/* Home page specific */
.services {
    padding: 40px 0;
    background: var(--color-white);
}

.service-card {
    border: 1px solid var(--color-gray-200);
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    padding: 0;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    z-index: 1;
}

.service-image-header {
    height: 180px;
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    position: relative;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.service-content {
    padding: var(--spacing-lg);
    flex-grow: 1;
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
}

.service-card h3 {
    font-size: 1.4rem;
    line-height: 1.3;
}

.service-card h4 {
    color: var(--color-text-primary);
    font-size: var(--font-lg);
    margin: var(--spacing-md) 0 var(--spacing-xs) 0;
    font-weight: 600;
}

.about {
    padding: 40px 0;
    background: var(--color-gray-100);
}

.about-intro {
    margin: 0 0 var(--spacing-2xl) 0;
    text-align: left;
}

.about-intro p {
    font-size: var(--font-lg);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-text h2 {
    font-size: var(--font-6xl);
    margin-bottom: var(--spacing-xl);
    color: var(--color-text-primary);
}

.about-text p {
    font-size: var(--font-lg);
    margin-bottom: 1.2rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.about-image {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    height: 400px;
    background: var(--gradient-header);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-primary);
    font-size: var(--font-xl);
    text-align: center;
    border: 1px solid var(--color-gray-400);
}

/* Contact styles */
.contact {
    padding: var(--spacing-3xl) 0;
    background: var(--gradient-contact);
    color: var(--color-text-primary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xs);
    position: relative;
}

.contact-info {
    padding-right: var(--spacing-md);
    margin-top: 0;
}

.contact-info h3 {
    font-size: var(--font-3xl);
    margin-bottom: var(--spacing-xl);
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.contact-item span {
    line-height: 1.2;
}

.contact-item-icon {
    font-size: var(--font-lg);
    margin-right: var(--spacing-md);
    color: var(--color-primary);
}

.contact-form {
    background: rgba(255,255,255,0.9);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.3);
    margin-top: -3rem;
}

.form-group {
    margin-bottom: 0.7rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.3rem;
    font-weight: bold;
    color: var(--color-text-primary);
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.7rem;
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-sm);
    background: var(--color-white);
    font-size: var(--font-base);
    color: var(--color-text-primary);
}

.form-group textarea {
    min-height: 80px;
    resize: vertical;
}

.submit-btn {
    background: var(--gradient-primary);
    color: var(--color-white);
    padding: 0.8rem var(--spacing-xl);
    border: none;
    border-radius: var(--radius-3xl);
    font-size: var(--font-base);
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: var(--spacing-xs);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(43, 108, 176, 0.4);
}

/* Page-specific color schemes */
.page-professional .section-title::after,
.page-professional .cta-button {
    background: linear-gradient(45deg, var(--color-accent-light-blue), var(--color-accent-blue));
}

.page-residential .section-title::after,
.page-residential .cta-button {
    background: var(--gradient-secondary);
}

.page-horeca .section-title::after,
.page-horeca .cta-button {
    background: linear-gradient(45deg, var(--color-accent-yellow), #b7791f);
}

.page-maintenance .section-title::after,
.page-maintenance .cta-button {
    background: linear-gradient(45deg, var(--color-accent-purple), var(--color-accent-purple-dark));
}

.page-innovation .section-title::after,
.page-innovation .cta-button {
    background: var(--gradient-secondary);
}

.page-compliance .section-title::after,
.page-compliance .cta-button {
    background: linear-gradient(45deg, var(--color-text-primary), var(--color-text-secondary));
}

/* Special components */
.benefit-number {
    font-size: var(--font-6xl);
    font-weight: bold;
    margin-bottom: var(--spacing-md);
}

.benefit-title {
    font-size: var(--font-xl);
    font-weight: bold;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.price {
    font-size: var(--font-4xl);
    font-weight: bold;
    margin-bottom: var(--spacing-md);
}

.price-note {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* Special sections */
.benefits-section,
.pricing-section,
.tech-section {
    padding: var(--spacing-xl) 0;
    margin: var(--spacing-xl) 0;
    border-radius: var(--radius-xl);
}

.benefits-section {
    background: var(--color-gray-100);
}

.pricing-section,
.tech-section {
    background: var(--gradient-header);
}

.contact-cta {
    background: var(--gradient-primary);
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
    text-align: center;
    margin-top: var(--spacing-xl);
}

.contact-cta h3 {
    font-size: var(--font-4xl);
    margin-bottom: var(--spacing-md);
}

.contact-cta p {
    font-size: var(--font-xl);
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

.contact-cta .cta-button {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid var(--color-white);
    color: var(--color-white);
    padding: 12px 30px;
    text-decoration: none;
    border-radius: var(--radius-3xl);
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
}

.contact-cta .cta-button:hover {
    background: var(--color-white);
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

/* Program cards specific */
.program-badge {
    display: inline-block;
    background: var(--color-accent-green);
    color: var(--color-white);
    padding: 4px 12px;
    border-radius: var(--radius-2xl);
    font-size: var(--font-sm);
    font-weight: bold;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
}

.program-features {
    list-style: none;
    padding: 0;
    margin-top: var(--spacing-md);
}

.program-features li {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
    padding-left: var(--spacing-lg);
    position: relative;
    font-size: 0.9rem;
}

.program-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-accent-green);
    font-weight: bold;
}

/* Tech cards specific */
.tech-icon {
    font-size: var(--font-4xl);
    margin-bottom: var(--spacing-md);
}

/* Regulatory compliance specific */
.regulation-badge {
    display: inline-block;
    background: var(--color-accent-red);
    color: var(--color-white);
    padding: 4px 12px;
    border-radius: var(--radius-2xl);
    font-size: var(--font-sm);
    font-weight: bold;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
}

.regulation-badge.priority { background: var(--color-accent-red); }
.regulation-badge.alimentaire { background: var(--color-accent-yellow); }
.regulation-badge.normes { background: var(--color-accent-blue); }
.regulation-badge.regional { background: var(--color-accent-green); }
.regulation-badge.permits { background: var(--color-accent-purple); }
.regulation-badge.maintenance { background: var(--color-accent-red); }

.regulation-links {
    margin-top: var(--spacing-lg);
}

.external-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-accent-blue);
    text-decoration: none;
    font-weight: 500;
    margin: var(--spacing-xs) var(--spacing-md) var(--spacing-xs) 0;
    padding: 6px 12px;
    background: var(--color-blue-50);
    border-radius: var(--radius-2xl);
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.external-link:hover {
    background: var(--color-accent-blue);
    color: var(--color-white);
    transform: translateX(3px);
}

.regulatory-comparison {
    margin: var(--spacing-xl) 0;
}

.comparison-table-container {
    overflow-x: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-white);
    font-size: 0.95rem;
}

.comparison-table th {
    background: var(--color-text-primary);
    color: var(--color-white);
    padding: var(--spacing-md);
    text-align: left;
    font-weight: bold;
    font-size: 0.9rem;
}

.comparison-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--color-gray-200);
    vertical-align: top;
}

.comparison-table tbody tr:hover {
    background: var(--color-gray-100);
}

.comparison-table tbody tr:last-child td {
    border-bottom: none;
}

.region-wallonie { border-bottom: 3px solid var(--color-accent-red-dark); }
.region-bruxelles { border-bottom: 3px solid var(--color-primary); }
.region-flandre { border-bottom: 3px solid var(--color-accent-yellow); }

/* Tooltip styles */
.tooltip {
    position: relative;
    cursor: pointer;
    border-bottom: 2px dotted var(--color-primary);
    display: inline-block;
}

.tooltip::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 120%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.95);
    color: var(--color-text-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-xl);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(43, 108, 176, 0.2);
    font-size: 0.9rem;
    line-height: 1.4;
    width: 320px;
    text-align: left;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

.tooltip::after {
    content: '';
    position: absolute;
    bottom: 110%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: rgba(255, 255, 255, 0.95);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.tooltip:hover::before,
.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
}

/* Footer */
footer {
    background: var(--color-gray-900);
    color: var(--color-white);
    text-align: center;
    padding: var(--spacing-xl) 0;
}

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

.floating {
    animation: floating 3s ease-in-out infinite;
}

@keyframes floating {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* Responsive Design */
@media (max-width: 1200px) {
    .nav-links {
        gap: 1.2rem;
    }
    
    .nav-links a {
        font-size: 0.95rem;
    }
    
    .dropdown-menu {
        min-width: 260px;
    }

    .benefits-grid,
    .tech-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

@media (max-width: 992px) {
    .nav-links {
        gap: var(--spacing-md);
    }
    
    .nav-links a {
        font-size: 0.9rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

@media (max-width: 768px) {
@media (max-width: 768px) {
    /* Show mobile menu button */
    .mobile-menu-btn {
        display: block;
        order: 1; /* Position à gauche */
    }
    
    /* Upper header mobile layout: hamburger - logo - portal */
    .upper-header-content {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0.5rem var(--spacing-md);
        gap: 0.5rem;
    }
    
    /* Logo centré */
    .upper-header .logo {
        order: 2;
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }
    
    .upper-header .logo img {
        height: 34px;
    }
    
    /* Portal à droite */
    .portal-link {
        order: 3;
        font-size: 0.85rem;
        padding: 0.3rem 0.6rem;
        gap: 0.4rem;
    }
    
    .portal-text-full {
        display: none;
    }
    
    /* Hide desktop navigation */
    .nav-links {
        display: none;
    }
    
    /* Nav bar hidden on mobile (menu is in upper-header) */
    nav {
        display: none;
    }

    .portal-text-full {
        display: none;
    }
    
    .upper-header-content {
        padding: 0.5rem var(--spacing-md);
    }
    
    .upper-header .logo img {
        height: 34px;
    }
    
    .portal-link {
        font-size: 0.85rem;
        padding: 0.3rem 0.6rem;
        gap: 0.4rem;
    }
    
    .portal-text {
        display: inline; /* On garde le texte sur mobile selon votre choix option 2 */
    }

    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .logo img {
        height: 38px;
    }

    .hero {
        background-attachment: scroll;
        background-position: center center;
        padding: 100px 0 40px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: var(--font-base);
    }

    .hero-content {
        padding: 0 var(--spacing-md);
    }

    .hero.article-style {
        padding: 100px 0 40px;
        background-attachment: scroll;
    }
    
    .hero.article-style .hero-content h1 {
        font-size: 2rem;
    }
    
    .cta-button {
        padding: 12px 30px;
        font-size: 0.9rem;
    }

    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        margin-top: var(--spacing-md);
    }

    .contact-form {
        margin-top: 0;
    }
    
    .contact-info {
        margin-bottom: var(--spacing-md);
        padding-right: 0;
    }
    
    .contact-item {
        margin-bottom: var(--spacing-sm);
    }

    /* All grids to single column on mobile */
    .features-grid,
    .services-grid,
    .solutions-grid,
    .programs-grid,
    .equipment-grid,
    .benefits-grid,
    .pricing-grid,
    .specialties-grid,
    .tech-grid {
        grid-template-columns: 1fr !important;
        gap: var(--spacing-lg);
    }

    .section-title {
        font-size: var(--font-4xl);
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    .tooltip::before {
        width: 280px;
        font-size: var(--font-sm);
        padding: var(--spacing-sm);
    }

    .comparison-table {
        font-size: var(--font-sm);
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 0.6rem var(--spacing-xs);
    }
    
    .external-link {
        font-size: var(--font-sm);
        padding: 5px 10px;
        margin: 0.3rem var(--spacing-xs) 0.3rem 0;
    }
    
    .regulation-badge {
        font-size: 0.75rem;
        padding: 3px 8px;
    }

    .contact {
        padding: var(--spacing-xl) 0;
    }
    
    .contact-content {
        gap: var(--spacing-md);
    }
    
    .form-group {
        margin-bottom: 0.9rem;
    }
}

@media (max-width: 480px) {
    .upper-header .logo img {
        height: 30px;
    }
    
    .portal-link {
        font-size: 0.8rem;
        padding: 0.25rem 0.5rem;
    }
    
    .portal-link i {
        font-size: 1rem;
    }

    .logo img {
        height: 34px;
    }

    .hero {
        padding: 70px 0 30px;
    }

    .hero h1 {
        font-size: 1.6rem;
    }

    .hero.article-style .hero-content h1 {
        font-size: 1.6rem;
    }
    
    .tooltip::before {
        width: 250px;
        left: 0;
        transform: none;
        margin-left: -125px;
    }

    .about-image {
        height: 300px;
    }

    .service-image-header {
        height: 150px;
    }

    .comparison-table-container {
        margin: 0 calc(-1 * var(--spacing-md));
        border-radius: 0;
    }
    
    .comparison-table th:first-child,
    .comparison-table td:first-child {
        position: sticky;
        left: 0;
        background: var(--color-white);
        z-index: 1;
        box-shadow: 2px 0 5px rgba(0,0,0,0.1);
    }
    
    .comparison-table th:first-child {
        background: var(--color-text-primary);
    }
}

@-moz-document url-prefix() {
    .nav-links {
        gap: 1.2rem;
    }
    
    .nav-links a {
        font-size: 0.95rem;
        letter-spacing: -0.01em;
    }
}

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