/* Reset et variables */
:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --success-color: #2ecc71;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    line-height: 1.6;
    color: #333;
    background-color: #f9f9f9;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.section-title {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2.5rem;
    color: var(--secondary-color);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    margin: 10px auto;
}

/* Header et Navigation */
.navbar {
    background-color: var(--secondary-color);
    color: white;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
    text-decoration: none;
}

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

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

.hamburger {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Section Hero (Accueil) */
.hero {
    padding: 8rem 0 4rem;
    background: url('assets/technologie.jpeg') no-repeat center center/cover;
    color: white;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5); /* Superposition semi-transparente */
    z-index: 1;
}

.hero > .container {
    position: relative;
    z-index: 2;
}


.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.hero-content {
    flex: 1;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero-content h1 span {
    color: var(--light-color);
}

.hero-content h2 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.hero-content h2 span {
    color: var(--light-color);
}

.hero-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.social-links {
    margin-bottom: 2rem;
}

.social-links a {
    color: white;
    font-size: 1.5rem;
    margin-right: 1rem;
    transition: transform 0.3s;
}

.social-links a:hover {
    transform: translateY(-5px);
}

.hero-image {
    flex: 1;
    text-align: center;
}

.hero-image img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Bouton générique */
.btn {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    font-weight: 500;
    transition: background 0.3s;
}

.btn:hover {
    background: #2980b9;
}

.btn.disabled {
    background: #95a5a6;
    cursor: not-allowed;
}

/* Section À propos */
.about {
    padding: 5rem 0;
    background-color: white;
}

.about-content {
    display: flex;
    gap: 3rem;
    align-items: flex-start;
}

.about-text {
    flex: 1;
}

.about-text h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.about-text p {
    margin-bottom: 1.5rem;
}

.education, .certifications {
    margin-top: 2rem;
}

.education h4, .certifications h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.about-skills {
    flex: 1;
}

.about-skills h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.skill {
    margin-bottom: 1.5rem;
}

.skill-name {
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.skill-bar {
    height: 10px;
    background-color: #ecf0f1;
    border-radius: 5px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background-color: var(--primary-color);
    border-radius: 5px;
    transition: width 1s ease-in-out;
}

/* Section Compétences */
.skills-section {
    padding: 5rem 0;
    background-color: var(--light-color);
}

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

.skill-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s;
}

.skill-card:hover {
    transform: translateY(-10px);
}

.skill-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.skill-card h3 {
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.skill-card p {
    color: #666;
}

/* Section Projets */
.projects {
    padding: 5rem 0;
    background-color: white;
}

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

.project-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.project-card:hover {
    transform: translateY(-10px);
}

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

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.project-content p {
    margin-bottom: 1rem;
    color: #666;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.project-tech span {
    background: var(--light-color);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--secondary-color);
}

.project-links {
    display: flex;
    gap: 1rem;
}

/* Section Contact */
.contact {
    padding: 5rem 0;
    background-color: var(--light-color);
}

.contact-content {
    display: flex;
    gap: 3rem;
    align-items: flex-start;
}

.contact-info {
    flex: 1;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.contact-info p {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

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

.contact-form {
    flex: 1;
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

/* Footer */
footer {
    background: var(--secondary-color);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.footer-links {
    margin-top: 1rem;
}

.footer-links a {
    color: white;
    text-decoration: none;
    margin: 0 0.5rem;
}

.footer-links a:hover {
    text-decoration: underline;
}

/* Bouton "Retour en haut" */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--primary-color);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    opacity: 0;
    transition: opacity 0.3s;
}

.back-to-top.active {
    opacity: 1;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        position: absolute;
        top: 70px;
        left: 0;
        background: var(--secondary-color);
        padding: 1rem;
    }

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

    .hamburger {
        display: block;
    }

    .hero .container {
        flex-direction: column;
        text-align: center;
    }

    .hero-content {
        margin-bottom: 2rem;
    }

    .about-content {
        flex-direction: column;
    }

    .contact-content {
        flex-direction: column;
    }
}