/* Reset et base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

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

/* Header et Navigation */
.header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand h1 a {
    color: #2563eb;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
}

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

.nav-menu a {
    text-decoration: none;
    color: #64748b;
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 6px;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: #2563eb;
    background-color: #eff6ff;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: #333;
    transition: 0.3s;
}

/* Boutons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: #2563eb;
    color: white;
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: #2563eb;
    border: 2px solid #2563eb;
}

.btn-secondary:hover {
    background: #2563eb;
    color: white;
}

.btn-full {
    width: 100%;
}

/* Main content spacing */
main {
    margin-top: 80px;
}

/* Hero Section */
.hero {
    padding: 4rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

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

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.8;
}

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

.hero-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

/* Services */
.services {
    padding: 4rem 0;
    background: #f8fafc;
}

.services h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #1e293b;
}

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

.service-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
}

.service-card h3 {
    color: #2563eb;
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

/* Portfolio */
.portfolio {
    padding: 4rem 0;
}

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

.section-header h1 {
    font-size: 2.5rem;
    color: #1e293b;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.1rem;
    color: #64748b;
    max-width: 600px;
    margin: 0 auto;
}

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

.project-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
}

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

.project-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.project-overlay {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

.project-status {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

.project-status.en-ligne {
    background: #dcfce7;
    color: #166534;
}

.project-status.en-développement {
    background: #fef3c7;
    color: #92400e;
}

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: #1e293b;
}

.project-content p {
    color: #64748b;
    margin-bottom: 1rem;
}

.project-technologies {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tech-tag {
    background: #eff6ff;
    color: #2563eb;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

/* About */
.about {
    padding: 4rem 0;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: start;
}

.about-text h1 {
    font-size: 2.5rem;
    color: #1e293b;
    margin-bottom: 1.5rem;
}

.about-intro {
    font-size: 1.2rem;
    color: #2563eb;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: #64748b;
    line-height: 1.7;
}

.about-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* Skills */
.skills {
    padding: 4rem 0;
    background: #f8fafc;
}

.skills h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #1e293b;
}

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

.skill-category {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.skill-category h3 {
    color: #2563eb;
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

.skill-item {
    margin-bottom: 1.5rem;
}

.skill-item span {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #1e293b;
}

.skill-bar {
    background: #e2e8f0;
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, #2563eb, #3b82f6);
    border-radius: 4px;
    transition: width 1s ease;
}

/* Experience */
.experience {
    padding: 4rem 0;
}

.experience h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #1e293b;
}

.timeline {
    max-width: 800px;
    margin: 0 auto;
}

.timeline-item {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #e2e8f0;
}

.timeline-date {
    font-weight: 600;
    color: #2563eb;
    font-size: 1.1rem;
}

.timeline-content h3 {
    color: #1e293b;
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.timeline-content p {
    color: #64748b;
    line-height: 1.6;
}

/* Contact */
.contact {
    padding: 4rem 0;
}

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

.contact-info h1 {
    font-size: 2.5rem;
    color: #1e293b;
    margin-bottom: 1rem;
}

.contact-intro {
    font-size: 1.1rem;
    color: #64748b;
    margin-bottom: 2rem;
    line-height: 1.6;
}

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

.contact-item {
    margin-bottom: 1.5rem;
}

.contact-item h3 {
    color: #2563eb;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.contact-item a {
    color: #64748b;
    text-decoration: none;
}

.contact-item a:hover {
    color: #2563eb;
}

.social-links h3 {
    color: #1e293b;
    margin-bottom: 1rem;
}

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

.social-btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.social-btn.linkedin {
    background: #0077b5;
    color: white;
}

.social-btn.github {
    background: #333;
    color: white;
}

.social-btn.twitter {
    background: #1da1f2;
    color: white;
}

.social-btn:hover {
    transform: translateY(-2px);
}

/* Contact Form */
.contact-form {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 12px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #1e293b;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.success-message,
.error-message {
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.success-message {
    background: #dcfce7;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.error-message {
    background: #fef2f2;
    color: #dc2626;
    border: 1px solid #fecaca;
}

/* Footer */
.footer {
    background: #1e293b;
    color: white;
    padding: 2rem 0;
    margin-top: 4rem;
}

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

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: white;
        flex-direction: column;
        justify-content: start;
        align-items: center;
        padding-top: 2rem;
        transition: left 0.3s ease;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .timeline-item {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .social-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 2rem 0;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .section-header h1,
    .about-text h1,
    .contact-info h1 {
        font-size: 2rem;
    }
    
    .services h2,
    .skills h2,
    .experience h2 {
        font-size: 2rem;
    }
}