/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    font-size: 16px;
}

/* ===== VARIABLES CSS ===== */
:root {
    /* Couleurs principales */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #f59e0b;
    --accent-color: #10b981;
    
    /* Couleurs du bâtiment */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Couleurs fonctionnelles */
    --white: #ffffff;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    /* Spacing */
    --container-padding: 1rem;
    --section-padding: 4rem 0;
    
    /* Typography */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Border radius */
    --radius-sm: 0.25rem;
    --radius: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* ===== UTILITY CLASSES ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.text-center {
    text-align: center;
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 3rem;
    text-align: center;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: var(--font-size-base);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    min-height: 44px;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

/* ===== HEADER & NAVIGATION ===== */
.header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.nav {
    padding: 1rem 0;
}

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

.nav-logo h2 {
    color: var(--primary-color);
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.nav-logo a {
    text-decoration: none;
}

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

.nav-link {
    color: var(--gray-700);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

.contact-btn {
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
}

.contact-btn:hover {
    background-color: #d97706;
    color: var(--white);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--gray-700);
    margin: 3px 0;
    transition: var(--transition);
}

/* ===== HERO SECTIONS ===== */
.hero {
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    margin-bottom: 2rem;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.hero-page {
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
}

.hero-page .hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-page h1 {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.hero-page .hero-subtitle {
    font-size: var(--font-size-lg);
    opacity: 0.9;
}

/* ===== DOUBLE ENTRY SECTION ===== */
.double-entry {
    padding: var(--section-padding);
    background-color: var(--white);
}

.entry-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.entry-card {
    background-color: var(--white);
    padding: 3rem 2rem;
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    border: 1px solid var(--gray-200);
}

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

.entry-b2b {
    border-top: 4px solid var(--primary-color);
}

.entry-b2c {
    border-top: 4px solid var(--accent-color);
}

.entry-icon {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.entry-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.entry-subtitle {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.entry-text {
    color: var(--gray-600);
    margin-bottom: 2rem;
    line-height: 1.7;
}

/* ===== COMMITMENTS SECTION ===== */
.commitments {
    padding: var(--section-padding);
    background-color: var(--gray-50);
}

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

.commitment-item {
    text-align: center;
    padding: 2rem 1rem;
}

.commitment-icon {
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.commitment-item h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.commitment-item p {
    color: var(--gray-600);
}

/* ===== LATEST PROJECTS SECTION ===== */
.latest-projects {
    padding: var(--section-padding);
    background-color: var(--white);
}

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

.project-card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: pointer;
}

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

.project-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.project-info {
    padding: 1.5rem;
}

.project-info h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.project-info p {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
}

/* ===== ADVANTAGES SECTION ===== */
.advantages {
    padding: var(--section-padding);
    background-color: var(--gray-50);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.advantage-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.advantage-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.advantage-icon {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.advantage-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.advantage-card p {
    color: var(--gray-600);
    line-height: 1.7;
}

/* ===== PROCESS SECTION ===== */
.process {
    padding: var(--section-padding);
    background-color: var(--white);
}

.process-steps {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: 1.5rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

/* Processus Vertical */
.process-steps-vertical {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 600px;
    margin: 0 auto;
    gap: 0;
}

.step-vertical {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 2rem;
    width: 100%;
    background-color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    margin-bottom: 1rem;
    transition: var(--transition);
}

.step-vertical:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.step {
    text-align: center;
    padding: 1.5rem;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    color: var(--white);
    font-size: var(--font-size-xl);
    font-weight: 700;
    border-radius: 50%;
    margin-bottom: 1rem;
    flex-shrink: 0;
}

.step-vertical .step-number {
    margin-bottom: 0;
    margin-right: 0;
}

.step h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.step p {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
}

.step-vertical .step-content h3 {
    margin-bottom: 0.5rem;
    font-size: var(--font-size-xl);
}

.step-vertical .step-content p {
    font-size: var(--font-size-base);
    line-height: 1.6;
}

.step-arrow {
    color: var(--gray-400);
}

.step-arrow-down {
    color: var(--primary-color);
    margin: 0.5rem 0;
    opacity: 0.7;
}

.step-arrow-down svg {
    filter: drop-shadow(0 2px 4px rgba(37, 99, 235, 0.2));
}

/* ===== PORTFOLIO SECTION ===== */
.portfolio-filters {
    padding: 2rem 0;
    background-color: var(--gray-50);
}

.filter-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.filter-btn {
    padding: 0.5rem 1.5rem;
    background-color: var(--white);
    color: var(--gray-600);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.filter-btn.active,
.filter-btn:hover {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.portfolio {
    padding: var(--section-padding);
    background-color: var(--white);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    opacity: 1;
    transition: var(--transition);
}

.portfolio-item.hidden {
    opacity: 0;
    transform: scale(0.8);
    position: absolute;
    visibility: hidden;
}

.portfolio-image {
    position: relative;
    height: 250px;
    overflow: hidden;
    border-radius: var(--radius-lg);
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.05);
}

.portfolio-content {
    text-align: center;
    color: var(--white);
    padding: 1rem;
}

.portfolio-content h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.portfolio-content p {
    font-size: var(--font-size-sm);
    margin-bottom: 1rem;
    opacity: 0.9;
}

.btn-view {
    padding: 0.5rem 1rem;
    background-color: var(--white);
    color: var(--primary-color);
    border: none;
    border-radius: var(--radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

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

/* ===== PRODUCT RANGES SECTION ===== */
.product-ranges {
    padding: var(--section-padding);
    background-color: var(--gray-50);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.product-card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

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

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-content {
    padding: 2rem;
}

.product-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.product-content > p {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 1rem;
    font-size: var(--font-size-sm);
}

.product-content ul {
    list-style: none;
    margin-bottom: 1.5rem;
}

.product-content li {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
    margin-bottom: 0.25rem;
}

/* ===== CONTACT SECTION ===== */
.contact {
    padding: var(--section-padding);
    background-color: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h2,
.contact-form h2 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 2rem;
}

.contact-details {
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 2rem;
}

.contact-icon {
    color: var(--primary-color);
    margin-top: 0.25rem;
}

.contact-details-text h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.contact-details-text p {
    color: var(--gray-600);
    margin-bottom: 0.25rem;
}

.contact-details-text a {
    color: var(--primary-color);
    text-decoration: none;
}

.contact-details-text a:hover {
    text-decoration: underline;
}

.business-hours {
    background-color: var(--gray-50);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
}

.business-hours h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.business-hours ul {
    list-style: none;
}

.business-hours li {
    display: flex;
    justify-content: space-between;
    color: var(--gray-600);
    margin-bottom: 0.5rem;
}

.business-hours span {
    font-weight: 500;
    color: var(--gray-700);
}

/* ===== FORM STYLES ===== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: var(--font-size-base);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.conditional-fields {
    border-left: 3px solid var(--primary-color);
    padding-left: 1rem;
    margin-left: 1rem;
    background-color: var(--gray-50);
    padding: 1rem;
    border-radius: var(--radius);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-sm);
    position: relative;
    transition: var(--transition);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--white);
    font-size: 12px;
    font-weight: bold;
}

.form-message {
    padding: 1rem;
    border-radius: var(--radius);
    margin-top: 1rem;
    font-weight: 500;
}

.form-message.success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #10b981;
}

.form-message.error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #ef4444;
}

.btn-loading svg {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ===== TESTIMONIALS SECTION ===== */
.testimonials {
    padding: var(--section-padding);
    background-color: var(--gray-50);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 20px;
    font-size: 4rem;
    color: var(--primary-color);
    font-weight: bold;
    line-height: 1;
}

.testimonial-content {
    margin-bottom: 1.5rem;
}

.testimonial-content p {
    font-style: italic;
    color: var(--gray-600);
    line-height: 1.7;
}

.testimonial-author strong {
    color: var(--gray-900);
    font-weight: 600;
}

.testimonial-author span {
    color: var(--gray-500);
    font-size: var(--font-size-sm);
}

/* ===== PROFILE SECTION ===== */
.profile {
    padding: var(--section-padding);
    background-color: var(--white);
}

.profile-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.profile-text h2 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.profile-text p {
    color: var(--gray-600);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.profile-skills {
    list-style: none;
}

.profile-skills li {
    color: var(--gray-700);
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.profile-skills li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6rem;
    width: 8px;
    height: 8px;
    background-color: var(--accent-color);
    border-radius: 50%;
}

.profile-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* ===== FINANCING SECTION ===== */
.financing {
    padding: var(--section-padding);
    background-color: var(--white);
}

.financing-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.financing-text h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.financing-text p {
    color: var(--gray-600);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.aids-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.aid-item {
    background-color: var(--gray-50);
    padding: 1.5rem;
    border-radius: var(--radius);
    border-left: 4px solid var(--accent-color);
}

.aid-item h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.aid-item p {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
}

.financing-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* ===== FAQ SECTION ===== */
.faq {
    padding: var(--section-padding);
    background-color: var(--gray-50);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.faq-item {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.faq-item h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.faq-item p {
    color: var(--gray-600);
    line-height: 1.7;
}

/* ===== CTA SECTION ===== */
.cta {
    padding: var(--section-padding);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
}

.cta-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta p {
    font-size: var(--font-size-lg);
    margin-bottom: 2rem;
    opacity: 0.9;
}

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

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

.cta .btn-primary:hover {
    background-color: var(--gray-100);
    transform: translateY(-2px);
}

.cta .btn-outline {
    border-color: var(--white);
    color: var(--white);
}

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

/* ===== FOOTER ===== */
.footer {
    background-color: var(--gray-900);
    color: var(--gray-300);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--white);
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-section h4 {
    color: var(--white);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-section p {
    line-height: 1.7;
    margin-bottom: 1rem;
}

.footer-contact p {
    margin-bottom: 0.5rem;
}

.footer-contact strong {
    color: var(--white);
}

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

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

.footer-section a {
    color: var(--gray-300);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid var(--gray-700);
    padding-top: 1rem;
    text-align: center;
    color: var(--gray-400);
}

/* ===== MODAL ===== */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
}

.modal-content {
    background-color: var(--white);
    margin: 5% auto;
    padding: 2rem;
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 800px;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
}

.close {
    color: var(--gray-400);
    float: right;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    top: 1rem;
    right: 1.5rem;
}

.close:hover {
    color: var(--gray-900);
}

/* ===== RESPONSIVE DESIGN ===== */

/* Tablets */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .entry-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .profile-content,
    .financing-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
    
    .aids-list {
        grid-template-columns: 1fr;
    }
    
    .step-vertical {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
        padding: 1.5rem;
    }
    
    .step-vertical .step-number {
        margin-bottom: 1rem;
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --container-padding: 1rem;
        --section-padding: 3rem 0;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
        gap: 1rem;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .hero {
        padding: 6rem 0 3rem;
    }
    
    .hero-page {
        padding: 6rem 0 3rem;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
        margin-bottom: 2rem;
    }
    
    .commitments-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        min-width: 200px;
    }
    
    .filter-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .modal-content {
        margin: 10% auto;
        width: 95%;
    }
    
    .step-vertical {
        padding: 1rem;
        gap: 1rem;
    }
    
    .step-vertical .step-number {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-lg);
    }
    
    .step-vertical .step-content h3 {
        font-size: var(--font-size-lg);
    }
    
    .step-vertical .step-content p {
        font-size: var(--font-size-sm);
    }
}

/* Small mobile */
@media (max-width: 480px) {
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .section-title {
        font-size: var(--font-size-xl);
    }
    
    .entry-card {
        padding: 2rem 1.5rem;
    }
    
    .advantage-card,
    .product-card {
        padding: 1.5rem;
    }
    
    .contact-form,
    .contact-info {
        padding: 1rem 0;
    }
    
    .step {
        padding: 1rem;
    }
    
    .step-number {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-lg);
    }
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* ===== 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 for accessibility */
.btn:focus,
.nav-link:focus,
input:focus,
select:focus,
textarea:focus,
button:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --gray-600: #000;
        --gray-700: #000;
    }
}

/* Reduced motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Print styles */
@media print {
    .nav,
    .hamburger,
    .btn,
    .cta,
    .footer {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
        color: #000;
    }
    
    .hero,
    .hero-page {
        padding: 1rem 0;
    }
    
    .section-title {
        font-size: 18pt;
        margin-bottom: 1rem;
    }
}