@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700;800&display=swap');

:root {
    --couleur-primaire: #3498db; 
    --couleur-secondaire: #2c3e50; 
    --couleur-neutre: #ecf0f1; 
    --couleur-texte-sombre: #333;
    --couleur-texte-clair: #ffffff;
    
    --police-principale: 'Poppins', sans-serif;
    
    --hauteur-navbar: 70px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
 
    scroll-padding-top: var(--hauteur-navbar); 
}

body {
    font-family: var(--police-principale);
    color: var(--couleur-texte-sombre);
    background-color: var(--couleur-texte-clair);
    padding-top: var(--hauteur-navbar); 
    line-height: 1.6;
}

 
.navbar-fixe {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    width: 100%;
    height: var(--hauteur-navbar);
    background-color: var(--couleur-secondaire);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 5%;
}

.navbar-fixe .logo {
    font-weight: 700;
    font-size: 1.8em;
    color: var(--couleur-primaire);
    text-transform: uppercase;
}

.navbar-fixe .nav-links {
    list-style: none;
    display: flex;
}

.navbar-fixe .nav-links li {
    margin-left: 30px;
}

.navbar-fixe .nav-links a {
    text-decoration: none;
    color: var(--couleur-texte-clair);
    font-weight: 600;
    font-size: 1em;
    padding: 10px 0;
    position: relative;
    transition: color 0.3s;
}

.navbar-fixe .nav-links a:hover,
.navbar-fixe .nav-links a:focus {
    color: var(--couleur-primaire);
}

 
.navbar-fixe .nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background-color: var(--couleur-primaire);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.navbar-fixe .nav-links a:hover::after {
    width: 100%;
}

.burger-menu {
    display: none;
    background: none;
    color: var(--couleur-texte-clair);
    font-size: 1.5em;
    border: none;
    cursor: pointer;
}

 
.hero-section {
    min-height: calc(100vh - var(--hauteur-navbar)); 
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: var(--couleur-neutre);
    padding: 50px 5%; 
    overflow: hidden; 
    position: relative;
    flex-direction: column;
}

.presentation-contenu {
    max-width: 800px;
    opacity: 0;
    transform: translateY(20px);
    animation: fade-in-up 1s forwards 0.5s; 
}

@keyframes fade-in-up {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.photo-profil {
    margin-bottom: 30px; 
}

.photo-ronde {
    width: 180px; 
    height: 180px;
    border-radius: 50%; 
    object-fit: cover; 
    border: 5px solid var(--couleur-primaire); 
    box-shadow: 0 0 0 8px rgba(52, 152, 219, 0.2); 
}

.presentation-contenu .tagline {
    font-size: 1.1em;
    font-weight: 600;
    color: var(--couleur-primaire);
    margin-bottom: 10px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hero-section h1 {
    font-size: 4.5em; 
    margin-bottom: 0;
    color: var(--couleur-secondaire);
    font-weight: 800;
}

.hero-section h2 {
    font-size: 2em;
    color: #555;
    margin: 5px 0 20px 0;
    font-weight: 400;
}

.hero-section p {
    font-size: 1.1em;
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* BOUTONS */
.bouton-primaire,
.bouton-secondaire {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.bouton-primaire {
    background-color: var(--couleur-primaire);
    color: var(--couleur-texte-clair);
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.4);
}

.bouton-primaire:hover {
    background-color: #2980b9; 
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.6);
}

.bouton-secondaire {
    background-color: transparent;
    color: var(--couleur-secondaire);
    border: 2px solid var(--couleur-secondaire);
}

.bouton-secondaire:hover {
    background-color: var(--couleur-secondaire);
    color: var(--couleur-texte-clair);
    transform: translateY(-3px);
}

 
.section-standard {
    padding: 80px 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.titre-section {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 10px;
    color: var(--couleur-secondaire);
    text-transform: uppercase;
    position: relative;
}

.titre-section::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--couleur-primaire);
    margin: 10px auto 20px;
    border-radius: 2px;
}

.description-section {
    text-align: center;
    margin-bottom: 50px;
    font-size: 1.1em;
    color: #666;
}

 
.about-content {
    max-width: 1000px;
    margin: 0 auto; 
    display: flex;
    flex-direction: column; 
    gap: 30px;
    text-align: left; 
}

/* Desktop layout for About */
@media (min-width: 900px) {
    .about-content {
        display: grid;
        grid-template-columns: 2fr 1fr; 
        gap: 50px;
    }
    
    .about-actions {
        grid-column: 1 / -1; 
    }
    
    .about-text-column,
    .about-image-column {
        min-height: 100%;
    }
}

.about-image-column img {
    max-width: 100%; 
    height: auto;     
    display: block;
    border-radius: 8px; 
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1); 
}

.about-content p {
    font-size: 1.1em;
    margin-bottom: 20px;
    line-height: 1.8;
    text-align: justify; 
}

.about-actions {
    margin-top: 20px; 
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: flex-start;
}

.about-actions .bouton-secondaire i,
.about-actions .bouton-primaire i {
    margin-right: 8px;
}

 
#education {
    background-color: var(--couleur-neutre);
    padding: 80px 5%;
}

.education-timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    padding-left: 30px; 
    text-align: left;
}

 
.education-timeline::before {
    content: '';
    position: absolute;
    left: 10px;
    top: 0;
    bottom: 0;
    width: 5px; 
    background-color: var(--couleur-primaire); 
    border-radius: 2px;
    box-shadow: 0 0 5px rgba(52, 152, 219, 0.4); 
}

.education-item {
    position: relative;
    padding: 15px 20px; 
    margin-bottom: 25px;
    text-align: left;
    background-color: var(--couleur-texte-clair);
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08); 
    border-left: 4px solid var(--couleur-primaire); 
    transition: transform 0.3s ease;
}

.education-item:hover {
    transform: translateY(-3px);
}

 
.education-item::before {
    content: '';
    position: absolute;
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background-color: var(--couleur-texte-clair); 
    border: 3px solid var(--couleur-primaire); 
    left: -25px; 
    top: 20px; 
    z-index: 10;
}

.education-item h3 {
    color: var(--couleur-secondaire);
    font-size: 1.4em;
    margin-bottom: 5px;
}

 
.section-mini-footer {
    background: linear-gradient(135deg, var(--couleur-neutre) 0%, #f0f4f7 100%); 
    padding: 60px 5%;
    text-align: left;
    margin: 60px auto;
    max-width: 100%; 
    border-top: 5px solid var(--couleur-primaire); 
}

.mini-footer-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: left;
}

.section-mini-footer .mini-footer-content p {
    font-size: 1.4em;
    font-weight: 700;
    color: var(--couleur-secondaire);
    margin-bottom: 30px;
    padding: 0 20px;
}

.section-mini-footer .mini-footer-content ul {
    list-style: none;
    padding-left: 20px; 
}

.section-mini-footer .mini-footer-content ul li {
    margin-bottom: 15px;
    font-size: 1.1em;
    color: var(--couleur-texte-sombre);
    position: relative;
    padding-left: 35px;
}

 
.section-mini-footer .mini-footer-content ul li::before {
    content: "\f00c"; 
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: #27ae60;
    font-size: 1.2em;
}

 
.competences-grille {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.domaine-expertise {
    background-color: var(--couleur-neutre);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-left: 5px solid var(--couleur-primaire);
}

.domaine-expertise:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.domaine-expertise h3 {
    color: var(--couleur-secondaire);
    margin-bottom: 15px;
    font-size: 1.4em;
}

.liste-skills {
    list-style-type: none;
    padding-left: 0;
}

.liste-skills li {
    
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="%233498db"><path d="M20 6L9 17l-5-5"/></svg>') no-repeat left center;
    background-size: 16px;
    padding-left: 25px;
    margin-bottom: 8px;
}

 
.liste-projets {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.carte-projet {
    background-color: var(--couleur-texte-clair);
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    padding: 25px;
    transition: transform 0.3s ease;
}

.carte-projet:hover {
    transform: scale(1.03);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.carte-projet h3 {
    color: var(--couleur-primaire);
    font-size: 1.5em;
    margin-bottom: 10px;
}

.lien-projet, .in_progress, .mobile {
    color: var(--couleur-secondaire);
    text-decoration: none;
    font-weight: 600;
    margin-top: 15px;
    display: block;
    transition: color 0.3s;
}

.lien-projet { color: var(--couleur-primaire); }

.lien-projet:hover { text-decoration: underline; }

.in_progress:hover, .mobile:hover {
    color: var(--couleur-primaire);
}

 
.section-contact {
    background-color: var(--couleur-secondaire);
    color: var(--couleur-texte-clair);
    text-align: center;
    padding: 60px 5%;
}

.section-contact .titre-section {
    color: var(--couleur-texte-clair);
}
.section-contact .titre-section::after {
    background-color: var(--couleur-primaire);
}

.coordonnees {
    margin: 40px auto;
    max-width: 400px; 
    text-align: left; 
    font-size: 1.1em;
    padding: 0 20px;
}

.coordonnees p {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.coordonnees i {
    color: var(--couleur-primaire);
    margin-right: 15px;
    font-size: 1.3em; 
    width: 25px; 
    text-align: center;
}

.coordonnees a {
    color: var(--couleur-primaire);
    text-decoration: none;
    font-weight: 600;
}

.coordonnees a:hover {
    text-decoration: underline;
}

.section-contact .copyright p {
    margin-top: 20px;
    font-size: 0.9em;
    opacity: 0.7; 
}


.scroll-reveal {
   
    opacity: 0; 
    transform: translateY(20px); 
    transition: opacity 0.8s ease-out, transform 0.6s ease-out; 
    will-change: opacity, transform; 
}

.scroll-reveal.visible {
    opacity: 1; 
    transform: translateY(0); 
}

/* =========================================
   12. RESPONSIVE (MOBILE)
   ========================================= */
@media (max-width: 768px) {
    .navbar-fixe {
        height: 60px;
        padding: 0 3%;
    }
    
    body {
        padding-top: 60px;
    }
    
    .burger-menu {
        display: block; 
    }

    .navbar-fixe .nav-links {
        display: none; 
        position: absolute;
        top: 60px; 
        left: 0;
        width: 100%;
        flex-direction: column;
        background-color: var(--couleur-secondaire);
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
        padding-bottom: 10px;
    }
    
    .navbar-fixe .nav-links.active {
        display: flex; 
    }
    
    .navbar-fixe .nav-links li {
        margin: 0;
        text-align: center;
        width: 100%;
    }

    .navbar-fixe .nav-links a {
        display: block;
        padding: 12px 0;
        width: 100%;
    }

    .hero-section h1 {
        font-size: 3em;
    }

    .hero-section h2 {
        font-size: 1.5em;
    }

    .titre-section {
        font-size: 2em;
    }
    
    .domaine-expertise {
        border-left: none; 
        border-top: 5px solid var(--couleur-primaire); 
    }

    .photo-ronde {
        width: 150px;
        height: 150px;
    }
    
    .about-content {
        display: flex; 
        flex-direction: column; 
        text-align: center;
    }
    
    .about-image-column {
       display: block; 
       margin: 20px auto 0; 
       width: 100%; 
       max-width: 300px;
    }

    .coordonnees {
        text-align: center;
    }
    .coordonnees p {
        justify-content: center;
    }

    #about .titre-section,
    #about .description-section {
        text-align: center; 
    }

    #about .titre-section::after {
        margin: 10px auto 20px auto; 
    }
}