styles.css

/* ============================================
   FICHIER CSS EXTRACTED FROM index.html
   Place this file in the same folder as index.html
   ============================================ */

:root {
    /* Couleurs principales du site */
    --primary-color: #2563eb;      /* Bleu principal */
    --secondary-color: #7c3aed;    /* Violet accent */
    --background-color: #fafafa;   /* Gris très clair pour le fond */
    --text-color: #1f2937;         /* Gris foncé pour le texte */
    --light-gray: #f3f4f6;         /* Gris clair pour les cartes */
    --white: #ffffff;              /* Blanc pur */
    
    /* Espacements standards */
    --spacing-small: 8px;
    --spacing-medium: 16px;
    --spacing-large: 32px;
    --spacing-xlarge: 64px;
    
    /* Bordures arrondies */
    --border-radius: 12px;
    
    /* Ombres pour donner de la profondeur */
    --shadow-small: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.12);
}

/* ============================================
   STYLES DE BASE - Réinitialisation et configuration globale
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box; /* Inclut padding et border dans la largeur totale */
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.7; /* Hauteur de ligne pour la lisibilité */
    overflow-x: hidden; /* Empêche le scroll horizontal */
}

html {
    scroll-behavior: smooth;
}

/* ============================================
   HEADER - Barre de navigation en haut de page
   ============================================ */
.header {
    background-color: var(--white);
    padding: 20px 0;
    position: sticky; /* Reste visible en scrollant */
    top: 0;
    z-index: 1000; /* Au-dessus de tous les autres éléments */
    box-shadow: var(--shadow-small);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-medium);
    display: flex;
    justify-content: space-between; /* Logo à gauche, menu à droite */
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-color); /* Fallback color if image missing */
}

.logo-img {
    height: 40px;
    width: auto;
    display: block;
}

/* Visually hidden text for screen readers */
.sr-only {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.nav-menu {
    display: flex;
    list-style: none; /* Enlève les puces */
    gap: var(--spacing-large);
}

.nav-menu a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease; /* Transition douce au survol */
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ============================================
   HERO SECTION - Section d'accueil principale
   ============================================ */
.hero {
    min-height: 90vh; /* Prend presque toute la hauteur de l'écran */
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-xlarge) var(--spacing-medium);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); /* Dégradé de fond */
    color: var(--white);
}

.hero-content {
    max-width: 800px;
}

.hero h1 {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: var(--spacing-medium);
    animation: fadeInUp 1s ease; /* Animation d'apparition */
}

.hero h2 {
    font-size: 28px;
    font-weight: 400;
    margin-bottom: var(--spacing-medium);
    opacity: 0.95;
    animation: fadeInUp 1s ease 0.2s both; /* Apparaît après le h1 */
}

.hero p {
    font-size: 18px;
    margin-bottom: var(--spacing-large);
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.4s both;
}

.cta-button {
    display: inline-block;
    padding: 16px 40px;
    background-color: var(--white);
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    border-radius: 50px; /* Bouton très arrondi */
    transition: all 0.3s ease;
    animation: fadeInUp 1s ease 0.6s both;
    box-shadow: var(--shadow-medium);
}

.cta-button:hover {
    transform: translateY(-3px); /* Légère élévation */
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

/* ============================================
   SECTIONS COMMUNES - Styles partagés par toutes les sections
   ============================================ */
.section {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xlarge) var(--spacing-medium);
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-xlarge);
    color: var(--text-color);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    margin: var(--spacing-medium) auto 0;
    border-radius: 2px;
}

/* ============================================
   SECTION PROJETS - Grille de cartes de projets
   ============================================ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr); /* 3 colonnes sur desktop */
    gap: var(--spacing-large);
}

.project-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: var(--spacing-large);
    box-shadow: var(--shadow-small);
    transition: all 0.3s ease;
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-8px); /* Monte vers le haut */
    box-shadow: var(--shadow-medium); /* Ombre plus prononcée */
}

.project-header {
    height: 120px;
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-medium);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 600;
    color: var(--white);
}

.project-card:nth-child(1) .project-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}
.project-card:nth-child(2) .project-header {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}
.project-card:nth-child(3) .project-header {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}
.project-card:nth-child(4) .project-header {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}
.project-card:nth-child(5) .project-header {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}
.project-card:nth-child(6) .project-header {
    background: linear-gradient(135deg, #30cfd0 0%, #330867 100%);
}

.project-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: var(--spacing-small);
    color: var(--text-color);
}

.project-description {
    font-size: 15px;
    color: #6b7280;
    margin-bottom: var(--spacing-medium);
    line-height: 1.6;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-small);
    margin-bottom: var(--spacing-medium);
}

.tag {
    display: inline-block;
    padding: 6px 14px;
    background-color: var(--light-gray);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
}

.project-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.project-link:hover {
    color: var(--secondary-color);
}

/* ============================================
   SECTION À PROPOS - Informations et compétences
   ============================================ */
.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-text {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: var(--spacing-large);
    color: #4b5563;
}

.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-medium);
    justify-content: center;
    margin-top: var(--spacing-large);
}

.skill-badge {
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border-radius: 30px;
    font-weight: 500;
    font-size: 15px;
    box-shadow: var(--shadow-small);
    transition: all 0.3s ease;
}

.skill-badge:hover {
    transform: scale(1.05); /* Légère augmentation de taille */
    box-shadow: var(--shadow-medium);
}

/* ============================================
   SECTION CONTACT - Formulaire et informations
   ============================================ */
.contact-content {
    max-width: 600px;
    margin: 0 auto;
}

.contact-info {
    text-align: center;
    margin-bottom: var(--spacing-large);
}

.contact-email {
    font-size: 20px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    margin-bottom: var(--spacing-medium);
    display: inline-block;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-medium);
    margin-top: var(--spacing-medium);
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: var(--light-gray);
    color: var(--text-color);
    border-radius: 50%;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

/* Small icon sizing for image-based social links */
.social-link img,
.social-icon {
    width: 22px;
    height: 22px;
    object-fit: contain;
    display: block; /* let the parent inline-flex center it */
}

.social-link:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    transform: translateY(-3px);
}

.contact-form {
    background-color: var(--white);
    padding: var(--spacing-large);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-small);
}

.form-group {
    margin-bottom: var(--spacing-medium);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-small);
    font-weight: 500;
    color: var(--text-color);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--light-gray);
    border-radius: var(--border-radius);
    font-family: 'Poppins', sans-serif;
    font-size: 15px;
    transition: border-color 0.3s ease;
}

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

.form-group textarea {
    resize: vertical; /* Permet de redimensionner verticalement */
    min-height: 120px;
}

.submit-button {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border: none;
    border-radius: var(--border-radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

/* ============================================
   FOOTER - Pied de page
   ============================================ */
.footer {
    background-color: var(--text-color);
    color: var(--white);
    padding: var(--spacing-large) var(--spacing-medium);
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer p {
    margin-bottom: var(--spacing-medium);
    opacity: 0.9;
}

.footer .social-links {
    margin-top: var(--spacing-medium);
}

.footer .social-link {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
}

.footer .social-link:hover {
    background-color: var(--primary-color);
}

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

/* ============================================
   RESPONSIVE DESIGN - Adaptations pour tablettes et mobiles
   ============================================ */
@media (max-width: 1024px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr); /* 2 colonnes sur tablette */
    }
    
    .hero h1 {
        font-size: 42px;
    }
    
    .section-title {
        font-size: 36px;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex; /* Affiche le menu hamburger */
    }
    
    .nav-menu {
        position: fixed;
        left: -100%; /* Caché hors écran par défaut */
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: left 0.3s ease;
        box-shadow: var(--shadow-medium);
        padding: var(--spacing-large) 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 32px;
    }
    
    .hero h2 {
        font-size: 20px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .section {
        padding: var(--spacing-large) var(--spacing-medium);
    }
    
    .hero {
        padding: var(--spacing-large) var(--spacing-medium);
    }
}