:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --danger-color: #ef4444;
    --text-dark: #1f2937;
    --text-medium: #4b5563;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background: var(--bg-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Navigation */
.header {
    background: var(--bg-white);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-brand i {
    font-size: 1.8rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    margin: 3px 0;
    transition: 0.3s;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s;
}

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

.btn-primary-small {
    background: var(--primary-color);
    color: white !important;
    padding: 0.5rem 1.5rem;
    border-radius: 8px;
    transition: background 0.3s;
}

.btn-primary-small:hover {
    background: var(--primary-dark);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.85) 0%, rgba(30, 64, 175, 0.85) 100%),
                url('https://sspark.genspark.ai/cfimages?u1=3Kp1gHbnA6I%2F4penSjBGJ9n1t%2BNq1G3nqkNShgISEAFE8k%2FaVcugDszoof9j%2BvTNTlJojvMnb2r1J7oA9QIqKzQF4xc9OPX07TKqrqd%2BMCSQKdDPP5nAYs48q%2FNWdgT11CyScBBAZ731jqYZRtY%3D&u2=X%2Frfmg1zhXUQL86K&width=2560') center/cover no-repeat;
    color: white;
    padding: 5rem 0;
    text-align: center;
    position: relative;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 800;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.4);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.4);
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.4);
    background: rgba(0, 0, 0, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 20px;
}

.feature-item i {
    color: var(--secondary-color);
    font-size: 1.2rem;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn-primary, .btn-secondary, .btn-outline {
    padding: 0.875rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: center;
}

.btn-primary {
    background: var(--bg-white);
    color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.95);
    color: var(--primary-color);
    border: 2px solid white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.btn-secondary:hover {
    background: white;
    color: var(--primary-color);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

/* Sections */
.section {
    padding: 5rem 0;
}

.bg-light {
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-weight: 700;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-medium);
}

/* Isolation Types Cards */
.isolation-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.isolation-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
}

.isolation-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.isolation-card.featured {
    border: 3px solid var(--primary-color);
}

.badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--accent-color);
    color: white;
    padding: 0.375rem 0.875rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.isolation-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.isolation-icon i {
    font-size: 2.5rem;
    color: white;
}

.isolation-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    text-align: center;
}

.isolation-desc {
    text-align: center;
    color: var(--text-medium);
    margin-bottom: 1.5rem;
}

.isolation-benefits {
    list-style: none;
    margin-bottom: 1.5rem;
}

.isolation-benefits li {
    padding: 0.5rem 0;
    color: var(--text-medium);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.isolation-benefits i {
    color: var(--secondary-color);
}

.isolation-price {
    text-align: center;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--bg-light);
    border-radius: 8px;
}

.price-label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-medium);
    margin-bottom: 0.25rem;
}

.price-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.isolation-card .btn-outline,
.isolation-card .btn-primary {
    width: 100%;
}

/* Price Calculator */
.price-calculator {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    margin-bottom: 3rem;
}

.price-calculator h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.calculator-form {
    margin-bottom: 2rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.calculator-result {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 12px;
    margin-top: 2rem;
}

.calculator-result h4 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.result-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: white;
    border-radius: 8px;
}

.result-item.total {
    background: var(--primary-color);
    color: white;
    font-weight: 700;
    font-size: 1.125rem;
}

.result-label {
    font-weight: 600;
}

.result-value {
    font-size: 1.25rem;
    font-weight: 700;
}

.result-value.highlight {
    color: var(--secondary-color);
}

.result-value.success {
    color: var(--secondary-color);
}

/* Price Table */
.price-table {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.price-table h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

.price-table table {
    width: 100%;
    border-collapse: collapse;
}

.price-table th,
.price-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.price-table th {
    background: var(--bg-light);
    font-weight: 700;
    color: var(--text-dark);
}

.price-table tbody tr:hover {
    background: var(--bg-light);
}

/* Aides Section */
.aides-highlight {
    margin-bottom: 3rem;
}

.aide-banner {
    background: linear-gradient(135deg, var(--secondary-color), #059669);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.aide-banner i {
    font-size: 3rem;
}

.aide-banner h3 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.aides-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.aide-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.aide-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.aide-header i {
    font-size: 2rem;
    color: var(--primary-color);
}

.aide-header h3 {
    font-size: 1.5rem;
}

.aide-desc {
    color: var(--text-medium);
    margin-bottom: 1.5rem;
}

.aide-amounts {
    background: var(--bg-light);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.amount-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
}

.amount-label {
    font-size: 0.875rem;
    color: var(--text-medium);
}

.amount-value {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1.125rem;
}

.aide-conditions {
    list-style: none;
}

.aide-conditions li {
    padding: 0.5rem 0;
    color: var(--text-medium);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.aide-conditions i {
    color: var(--secondary-color);
}

/* Eligibility Checker */
.eligibility-checker {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.eligibility-checker h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.eligibility-form {
    margin-bottom: 2rem;
}

.eligibility-result {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 12px;
    margin-top: 2rem;
}

.result-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.result-header i {
    font-size: 2rem;
    color: var(--secondary-color);
}

.result-header h4 {
    font-size: 1.5rem;
}

/* Comparison Table */
.comparison-table-container {
    overflow-x: auto;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 800px;
}

.comparison-table th,
.comparison-table td {
    padding: 1.25rem;
    text-align: center;
    border: 1px solid var(--border-color);
}

.comparison-table th {
    background: var(--bg-light);
    font-weight: 700;
}

.comparison-table th:first-child {
    text-align: left;
    background: var(--primary-color);
    color: white;
}

.comparison-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.comparison-header i {
    font-size: 2rem;
    color: var(--primary-color);
}

.comparison-header.featured {
    background: var(--bg-light);
    padding: 1rem;
    border-radius: 8px;
}

.badge-small {
    background: var(--accent-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.comparison-table td.highlight {
    background: #f0fdf4;
    font-weight: 600;
}

.comparison-table .success {
    color: var(--secondary-color);
}

.comparison-table .danger {
    color: var(--danger-color);
}

.comparison-table i.fa-star {
    color: var(--accent-color);
}

/* Recommendation Box */
.recommendation-box {
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    padding: 2rem;
    border-radius: 12px;
    border-left: 5px solid var(--primary-color);
}

.recommendation-box h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--primary-color);
}

.recommendation-box p {
    margin-bottom: 1rem;
    line-height: 1.8;
}

/* Devis Section */
.devis-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
}

.devis-benefits h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

.benefit-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.benefit-item i {
    font-size: 2rem;
    color: var(--primary-color);
    flex-shrink: 0;
}

.benefit-item h4 {
    font-size: 1.125rem;
    margin-bottom: 0.25rem;
}

.benefit-item p {
    color: var(--text-medium);
    font-size: 0.925rem;
}

.devis-form-container {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.devis-form h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.form-step h4 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--border-color);
}

.radio-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.radio-card {
    position: relative;
    cursor: pointer;
}

.radio-card input[type="radio"] {
    position: absolute;
    opacity: 0;
}

.radio-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.3s;
}

.radio-content i {
    font-size: 2rem;
    color: var(--text-medium);
    transition: color 0.3s;
}

.radio-card input[type="radio"]:checked + .radio-content {
    border-color: var(--primary-color);
    background: #eff6ff;
}

.radio-card input[type="radio"]:checked + .radio-content i {
    color: var(--primary-color);
}

.form-buttons {
    display: flex;
    gap: 1rem;
    justify-content: space-between;
    margin-top: 1.5rem;
}

.checkbox-group {
    margin-bottom: 1rem;
}

.checkbox-group label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    line-height: 1.6;
}

.checkbox-group input[type="checkbox"] {
    margin-top: 0.25rem;
    width: 20px;
    height: 20px;
    cursor: pointer;
    flex-shrink: 0;
}

.checkbox-group span {
    color: var(--text-medium);
    font-size: 0.95rem;
}

.checkbox-group a {
    color: var(--primary-color);
    text-decoration: underline;
}

.success-message {
    text-align: center;
    padding: 3rem;
}

.success-message i {
    font-size: 4rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.success-message h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.success-message p {
    color: var(--text-medium);
    margin-bottom: 0.5rem;
}

/* FAQ Section */
.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    margin-bottom: 1rem;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 1.5rem;
    background: none;
    border: none;
    text-align: left;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    transition: background 0.3s;
}

.faq-question:hover {
    background: var(--bg-light);
}

.faq-question i {
    color: var(--primary-color);
    transition: transform 0.3s;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-item.active .faq-answer {
    max-height: 1000px;
    transition: max-height 0.5s ease-in;
}

.faq-answer {
    padding: 0 1.5rem;
}

.faq-answer p,
.faq-answer ul {
    margin-bottom: 1rem;
    color: var(--text-medium);
    line-height: 1.8;
}

.faq-answer ul {
    margin-left: 1.5rem;
}

.faq-answer li {
    margin-bottom: 0.5rem;
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

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

.footer-section a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s;
}

.social-links a:hover {
    background: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow-lg);
        display: none;
    }

    .nav-menu.active {
        display: flex;
    }

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

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-header h2 {
        font-size: 1.75rem;
    }

    .isolation-types {
        grid-template-columns: 1fr;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .devis-container {
        grid-template-columns: 1fr;
    }

    .comparison-table-container {
        overflow-x: auto;
    }

    .hero-features {
        flex-direction: column;
        gap: 1rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn-primary, .btn-secondary {
        width: 100%;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .radio-group {
        grid-template-columns: 1fr;
    }

    .form-buttons {
        flex-direction: column;
    }

    .form-buttons button {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 3rem 0;
    }

    .section {
        padding: 3rem 0;
    }

    .aide-banner {
        flex-direction: column;
        text-align: center;
    }
}

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

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

.isolation-card,
.aide-card,
.benefit-item {
    animation: fadeInUp 0.6s ease-out;
}