/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --blue-600: #2563eb;
    --blue-700: #1d4ed8;
    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    --white: #ffffff;
}

body {
    font-family: 'Roboto', sans-serif;
    color: var(--slate-900);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--slate-900);
}

.logo-icon {
    font-size: 1.5rem;
    color: var(--blue-600);
}

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

.nav-link {
    text-decoration: none;
    color: var(--slate-600);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--blue-600);
}

.btn-devis {
    background: var(--blue-600);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.3s;
}

.btn-devis:hover {
    background: var(--blue-700);
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--slate-900);
    transition: all 0.3s;
}

.mobile-menu {
    display: none;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
    background: var(--white);
    border-top: 1px solid var(--slate-100);
}

.mobile-link {
    text-decoration: none;
    color: var(--slate-600);
    font-weight: 600;
    font-size: 1.125rem;
    padding: 0.5rem 0;
}

.btn-mobile-devis {
    background: var(--blue-600);
    color: var(--white) !important;
    padding: 0.75rem;
    border-radius: 0.5rem;
    text-align: center;
}

@media (max-width: 768px) {
    .desktop-menu,
    .desktop-btn {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-menu.active {
        display: flex;
    }
}

/* Main Content */
main {
    margin-top: 73px;
}

.page {
    display: none;
}

.page.active {
    display: block;
}

/* Hero Section */
.hero {
    position: relative;
    height: 85vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--slate-900);
}

.hero-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.4;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, var(--slate-900), rgba(15, 23, 42, 0.6), transparent);
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    max-width: 48rem;
}

.hero-badge {
    display: inline-block;
    padding: 0.375rem 1rem;
    background: rgba(37, 99, 235, 0.2);
    color: #93c5fd;
    border: 1px solid rgba(37, 99, 235, 0.3);
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #cbd5e1;
    margin-bottom: 2.5rem;
    max-width: 36rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary {
    background: var(--blue-600);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--blue-700);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
    background: var(--white);
    color: var(--slate-900);
}

.btn-secondary:hover {
    background: var(--slate-100);
}

/* Services Preview */
.services-preview {
    padding: 6rem 0;
    background: var(--slate-50);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.25rem;
    color: var(--slate-600);
}

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

.service-card {
    background: var(--white);
    border-radius: 1rem;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px rgba(0,0,0,0.1);
}

.service-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.service-content {
    padding: 1.5rem;
}

.service-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.service-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.service-content p {
    color: var(--slate-600);
    margin-bottom: 1rem;
}

.service-link {
    color: var(--blue-600);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* Why Us Section */
.why-us-section {
    padding: 6rem 0;
    background: var(--white);
}

.why-us-card {
    background: var(--slate-900);
    border-radius: 1.5rem;
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1fr;
    position: relative;
}

.why-us-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, rgba(37, 99, 235, 0.2), transparent);
    pointer-events: none;
}

.why-us-content {
    padding: 5rem;
    position: relative;
    z-index: 10;
}

.why-us-content h3 {
    font-size: 2.5rem;
    color: var(--white);
    margin-bottom: 2.5rem;
}

.why-us-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.why-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--white);
}

.why-icon {
    width: 2.5rem;
    height: 2.5rem;
    background: rgba(37, 99, 235, 0.2);
    color: #93c5fd;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.why-us-cta {
    padding-top: 3rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.cta-title {
    color: #93c5fd;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.cta-subtitle {
    color: var(--slate-400);
    margin-bottom: 2rem;
}

.btn-white {
    background: var(--white);
    color: var(--slate-900);
}

.btn-white:hover {
    background: var(--slate-100);
}

.why-us-image {
    position: relative;
    min-height: 400px;
}

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

/* Page Header */
.page-header {
    background: var(--slate-900);
    color: var(--white);
    padding: 5rem 0;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.25rem;
    color: var(--slate-400);
    max-width: 48rem;
}

/* Services Detailed */
.services-content {
    padding: 6rem 0;
}

.services-detailed {
    display: grid;
    gap: 4rem;
}

.service-detailed {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.service-detailed:nth-child(even) {
    direction: rtl;
}

.service-detailed:nth-child(even) > * {
    direction: ltr;
}

.service-detailed-image {
    border-radius: 1rem;
    overflow: hidden;
}

.service-detailed-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.service-detailed-content h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.service-detailed-content p {
    font-size: 1.125rem;
    color: var(--slate-600);
    line-height: 1.8;
}

/* CTA Section */
.cta-section {
    background: var(--blue-600);
    padding: 5rem 0;
    text-align: center;
}

.cta-section h2 {
    color: var(--white);
    font-size: 2rem;
    margin-bottom: 2rem;
}

.btn-white-large {
    background: var(--white);
    color: var(--blue-600);
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

.btn-white-large:hover {
    background: var(--slate-100);
    transform: translateY(-2px);
}

/* About Page */
.about-content {
    padding: 6rem 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    text-decoration: underline;
    text-decoration-color: var(--blue-600);
    text-underline-offset: 8px;
}

.about-text p {
    font-size: 1.125rem;
    color: var(--slate-600);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-text h3 {
    font-size: 2rem;
    margin-top: 3rem;
    margin-bottom: 2rem;
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.philosophy-card {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--slate-50);
    border-radius: 1rem;
}

.philosophy-icon {
    width: 3rem;
    height: 3rem;
    background: rgba(37, 99, 235, 0.1);
    color: var(--blue-600);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.philosophy-card h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.philosophy-card p {
    font-size: 0.875rem;
    color: var(--slate-500);
}

.about-stats {
    display: flex;
    flex-direction: column;
}

.stat-card {
    background: linear-gradient(135deg, var(--blue-600), #1d4ed8);
    color: var(--white);
    padding: 3rem;
    border-radius: 1.5rem;
    text-align: center;
}

.stat-number {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.stat-label {
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.8;
}

/* Certifications */
.certifications {
    padding: 5rem 0;
    background: var(--white);
}

.cert-items {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    align-items: center;
    opacity: 0.6;
}

.cert-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.cert-icon {
    font-size: 2rem;
    color: var(--blue-600);
}

.cert-text {
    font-size: 1.25rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.5px;
    color: var(--slate-800);
}

/* Contact Page */
.contact-content {
    padding: 6rem 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-card {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--slate-50);
    border-radius: 1rem;
}

.info-icon {
    font-size: 1.5rem;
    color: var(--blue-500);
    flex-shrink: 0;
}

.info-card h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.info-card p {
    font-size: 0.875rem;
    color: var(--slate-600);
}

.info-highlight {
    background: var(--slate-50);
    padding: 1.5rem;
    border-radius: 1rem;
    border-left: 4px solid var(--blue-600);
}

.info-highlight h4 {
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.info-highlight p {
    font-size: 0.875rem;
    color: var(--slate-600);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--white);
    border: 1px solid var(--slate-100);
    box-shadow: 0 25px 50px rgba(0,0,0,0.1);
    border-radius: 1.5rem;
    padding: 3rem;
}

.contact-form h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--slate-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem 1rem;
    background: var(--slate-50);
    border: 1px solid var(--slate-200);
    border-radius: 0.75rem;
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    ring: 2px;
    ring-color: var(--blue-600);
    background: var(--white);
}

.form-group textarea {
    resize: none;
}

.btn-full {
    width: 100%;
    padding: 1rem;
    margin-top: 1rem;
}

/* Success Message */
.success-message {
    text-align: center;
    padding: 3rem;
}

.success-icon {
    width: 5rem;
    height: 5rem;
    background: #dcfce7;
    color: #16a34a;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin: 0 auto 1.5rem;
}

.success-message h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.success-message p {
    font-size: 1.125rem;
    color: var(--slate-600);
    margin-bottom: 2rem;
}

.btn-text {
    background: none;
    border: none;
    color: var(--blue-600);
    font-weight: 700;
    cursor: pointer;
    text-decoration: underline;
}

/* Footer */
.footer {
    background: var(--slate-900);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h4 {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--blue-600);
    padding-left: 0.75rem;
}

.footer-col p {
    color: var(--slate-400);
    font-size: 0.875rem;
    line-height: 1.6;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-col a {
    color: var(--slate-400);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.3s;
}

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

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: var(--slate-400);
    font-size: 0.875rem;
}

.footer-bottom {
    border-top: 1px solid var(--slate-800);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: var(--slate-500);
    font-size: 0.75rem;
}

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

.footer-links a {
    color: var(--slate-500);
    text-decoration: none;
    font-size: 0.75rem;
}

.footer-links a:hover {
    color: var(--slate-300);
}

/* Responsive */
@media (max-width: 1024px) {
    .why-us-card {
        grid-template-columns: 1fr;
    }
    
    .service-detailed {
        grid-template-columns: 1fr;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .why-us-content {
        padding: 2rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .philosophy-grid {
        grid-template-columns: 1fr;
    }
}