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

:root {
    --bleu-primaire: #116ACC;
    --bleu-secondaire: #0052CC;
    --bleu-clair: #B3CEE2;
    --bleu-tres-clair: #E6F0FF;
    --bleu-fonce: #003D99;
    --bleu-gradient-debut: #0066FF;
    --bleu-gradient-fin: #00A3FF;

    --vert: #16A34A;
    --vert-clair: #DCFCE7;
    --orange: #EA580C;
    --orange-clair: #FFF7ED;
    
    --blanc: #FFFFFF;
    --gris-tres-clair: #F8FAFC;
    --gris-clair: #E2E8F0;
    --gris-moyen: #D9DDE7;
    --gris-fonce: #475569;
    --gris-tres-fonce: #1E293B;
    --noir: #0F172A;

    --ombre-petite: 0 2px 8px rgba(0, 102, 255, 0.08);
    --ombre-moyenne: 0 4px 16px rgba(0, 102, 255, 0.12);
    --ombre-grande: 0 8px 32px rgba(0, 102, 255, 0.16);
    --ombre-bouton: 0 4px 12px rgba(0, 102, 255, 0.25);
    
    --transition-rapide: 0.2s ease;
    --transition-normale: 0.3s ease;
    --transition-lente: 0.5s ease;
    
    --espacement-xs: 0.5rem;
    --espacement-sm: 1rem;
    --espacement-md: 1.5rem;
    --espacement-lg: 2rem;
    --espacement-xl: 3rem;
    --espacement-xxl: 4rem;
    
    --rayon-petit: 8px;
    --rayon-moyen: 12px;
    --rayon-grand: 16px;
    --rayon-complet: 9999px;
}

body {
    font-family: 'Inter', Ubuntu, 'Segoe UI', sans-serif;
    background-color: var(--blanc);
    color: var(--gris-tres-fonce);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.conteneur {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--espacement-md);
}

/* ─── NAVIGATION ─── */
.barre-navigation {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--gris-fonce);
    transition: all var(--transition-normale);
}

.barre-navigation.navigation-scrollee {
    box-shadow: var(--ombre-petite);
}

.conteneur-navigation {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--espacement-md);
    height: 72px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-navigation {
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--noir);
    display: flex;
    align-items: center;
    gap: 2px;
    cursor: pointer;
    transition: transform var(--transition-rapide);
}

.logo-navigation:hover { transform: scale(1.05); }
.logo-texte { color: var(--bleu-primaire); }

.menu-navigation {
    display: flex;
    gap: var(--espacement-xl);
    align-items: center;
}

.lien-navigation {
    color: var(--gris-fonce);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 0.5rem 0;
    transition: color var(--transition-rapide);
}

.lien-navigation::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--bleu-gradient-debut), var(--bleu-gradient-fin));
    transition: width var(--transition-normale);
}

.lien-navigation:hover,
.lien-navigation.actif { color: var(--bleu-primaire); }

.lien-navigation:hover::before,
.lien-navigation.actif::before { width: 100%; }

/* ─── HERO ─── */
.section-principale {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 72px;
    padding-bottom: var(--espacement-xxl);
    overflow: hidden;
}

.contenu-principal {
    text-align: center;
    position: relative;
    z-index: 10;
    max-width: 900px;
    margin: 0 auto;
    padding: var(--espacement-lg);
}

.titre-principal {
    font-family: 'Poppins', sans-serif;
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 400;
    line-height: 1.2;
    margin-bottom: var(--espacement-md);
    color: var(--gris-fonce);
    animation: apparitionHaut 1s ease-out 0.3s both;
}

.nom-principal {
    display: block;
    font-weight: 800;
    background: linear-gradient(135deg, var(--bleu-gradient-debut), var(--bleu-gradient-fin));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-top: 0.25rem;
}

.sous-titre-principal {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    color: var(--gris-fonce);
    font-weight: 500;
    margin-bottom: var(--espacement-md);
    animation: apparitionHaut 1s ease-out 0.4s both;
}

.texte-anime {
    position: relative;
    color: var(--bleu-primaire);
    font-weight: 700;
}

.texte-anime::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--bleu-gradient-debut), var(--bleu-gradient-fin));
    transform: scaleX(0);
    transform-origin: left;
    animation: soulignement 1s ease-out 1.5s forwards;
}

.description-principale {
    font-size: clamp(1rem, 2vw, 1.125rem);
    color: var(--gris-fonce);
    max-width: 650px;
    margin: 0 auto var(--espacement-xl);
    line-height: 1.8;
    animation: apparitionHaut 1s ease-out 0.5s both;
}

.groupe-boutons {
    display: flex;
    gap: var(--espacement-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--espacement-xl);
    animation: apparitionHaut 1s ease-out 0.6s both;
}

.bouton {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: var(--rayon-moyen);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-normale);
    cursor: pointer;
    border: none;
    font-family: inherit;
}

.bouton-icone { transition: transform var(--transition-rapide); }
.bouton:hover .bouton-icone { transform: translateX(2px); }

.bouton-primaire {
    background: linear-gradient(135deg, var(--bleu-gradient-debut), var(--bleu-gradient-fin));
    color: var(--blanc);
    box-shadow: var(--ombre-bouton);
}

.bouton-primaire:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 102, 255, 0.35);
}

.bouton-primaire:active { transform: translateY(-1px); }

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

.bouton-secondaire:hover {
    background: var(--bleu-tres-clair);
    transform: translateY(-3px);
    box-shadow: var(--ombre-petite);
}

.liens-sociaux {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--espacement-md);
    margin-bottom: var(--espacement-xl);
    animation: apparitionHaut 1s ease-out 0.7s both;
}

.lien-social {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--rayon-moyen);
    background: var(--blanc);
    color: var(--bleu-primaire);
    border: 4px solid var(--gris-clair);
    transition: all var(--transition-normale);
    text-decoration: none;
}

.lien-social:hover {
    background: var(--bleu-primaire);
    color: var(--blanc);
    border-color: var(--bleu-primaire);
    transform: translateY(-5px);
    box-shadow: var(--ombre-bouton);
}

.indicateur-scroll {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--gris-moyen);
    animation: apparitionHaut 1s ease-out 0.8s both;
}

.scroll-texte { font-size: 0.875rem; font-weight: 500; }
.scroll-fleche { animation: rebond 2s ease-in-out infinite; }

.decoration-fond {
    position: absolute;
    inset: 0;
    z-index: 1;
    overflow: hidden;
    pointer-events: none;
}

.cercle-decoration {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, var(--bleu-tres-clair) 0%, transparent 70%);
    opacity: 0.6;
}

.cercle-1 { width: 500px; height: 500px; top: -250px; right: -150px; animation: flottement 15s ease-in-out infinite; }
.cercle-2 { width: 400px; height: 400px; bottom: -200px; left: -100px; animation: flottement 20s ease-in-out infinite reverse; }
.cercle-3 { width: 300px; height: 300px; top: 50%; left: 50%; transform: translate(-50%, -50%); animation: flottement 18s ease-in-out infinite; }

/* ─── SECTIONS ─── */
section { padding: var(--espacement-xxl) 0; }

.en-tete-section {
    text-align: center;
    margin-bottom: var(--espacement-xxl);
}

.surtitre-section {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--bleu-primaire);
    margin-bottom: var(--espacement-sm);
}

.titre-section {
    font-family: 'Poppins', sans-serif;
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--noir);
    margin-bottom: var(--espacement-md);
    line-height: 1.2;
}

.texte-accent {
    background: linear-gradient(135deg, var(--bleu-gradient-debut), var(--bleu-gradient-fin));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.diviseur-section {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--bleu-gradient-debut), var(--bleu-gradient-fin));
    margin: 0 auto var(--espacement-md);
    border-radius: var(--rayon-petit);
}

.sous-titre-section {
    font-size: clamp(1rem, 2vw, 1.125rem);
    color: var(--gris-fonce);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
}

.section-parcours  { background: var(--gris-tres-clair); }
.section-competences { background: var(--blanc); }
.section-projets { background: var(--gris-tres-clair); }
.section-contact { background: var(--blanc); }

/* ─── TIMELINE ─── */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: var(--espacement-lg) 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--bleu-gradient-debut), var(--bleu-gradient-fin));
    transform: translateX(-50%);
    border-radius: var(--rayon-complet);
}

.timeline-item {
    display: flex;
    align-items: flex-start;
    gap: var(--espacement-xl);
    margin-bottom: var(--espacement-xxl);
    position: relative;
}

.timeline-item:last-child { margin-bottom: 0; }

.timeline-gauche { flex-direction: row-reverse; }
.timeline-droite { flex-direction: row; }

.timeline-point {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--bleu-gradient-debut), var(--bleu-gradient-fin));
    border: 4px solid var(--blanc);
    box-shadow: 0 0 0 3px var(--bleu-primaire);
    position: absolute;
    left: 50%;
    top: 28px;
    transform: translateX(-50%);
    z-index: 2;
}

.timeline-point-orange {
    background: var(--orange);
    box-shadow: 0 0 0 3px var(--orange);
}

.timeline-contenu {
    background: var(--blanc);
    border-radius: var(--rayon-grand);
    padding: var(--espacement-lg);
    box-shadow: var(--ombre-moyenne);
    border: 1px solid var(--gris-clair);
    width: calc(50% - 3rem);
    transition: transform var(--transition-normale), box-shadow var(--transition-normale);
    position: relative;
}

.timeline-contenu:hover {
    transform: translateY(-4px);
    box-shadow: var(--ombre-grande);
}

.timeline-gauche .timeline-contenu { text-align: right; }
.timeline-droite .timeline-contenu { text-align: left; }

.timeline-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: var(--rayon-moyen);
    background: var(--bleu-tres-clair);
    color: var(--bleu-primaire);
    margin-bottom: var(--espacement-sm);
}

.timeline-badge-vert { background: var(--vert-clair); color: var(--vert); }
.timeline-badge-orange { background: var(--orange-clair); color: var(--orange); }

.timeline-gauche .timeline-badge { margin-left: auto; }

.timeline-annee-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--bleu-primaire);
    background: var(--bleu-tres-clair);
    padding: 0.2rem 0.75rem;
    border-radius: var(--rayon-complet);
    margin-bottom: var(--espacement-xs);
}

.timeline-tag-vert { color: var(--vert); background: var(--vert-clair); }
.timeline-tag-orange { color: var(--orange); background: var(--orange-clair); }

.timeline-titre {
    font-family: 'Poppins', sans-serif;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--noir);
    margin-bottom: 0.5rem;
}

.timeline-specialites {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 0.75rem;
}

.timeline-gauche .timeline-specialites { justify-content: flex-end; }

.tag-specialite {
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.2rem 0.75rem;
    background: var(--bleu-tres-clair);
    color: var(--bleu-primaire);
    border-radius: var(--rayon-complet);
}

.tag-specialite-orange {
    background: var(--orange-clair);
    color: var(--orange);
}

.timeline-description {
    font-size: 0.9rem;
    color: var(--vert);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-etablissement {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.875rem;
    color: var(--gris-fonce);
    font-weight: 500;
}

.timeline-gauche .timeline-etablissement { justify-content: flex-end; }

/* ─── COMPÉTENCES ─── */
.grille-competences {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--espacement-lg);
}

.carte-competence {
    background: var(--blanc);
    border-radius: var(--rayon-grand);
    padding: var(--espacement-lg);
    border: 1px solid var(--gris-clair);
    box-shadow: var(--ombre-petite);
    text-align: center;
    transition: all var(--transition-normale);
}

.carte-competence:hover {
    transform: translateY(-6px);
    box-shadow: var(--ombre-grande);
    border-color: var(--bleu-primaire);
}

.competence-icone {
    width: 72px;
    height: 72px;
    border-radius: var(--rayon-moyen);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--espacement-sm);
}

.competence-html { background: #FFF4E6; color: #E34F26; }
.competence-css  { background: #E8F4FD; color: #1572B6; }
.competence-php  { background: #F0EEFF; color: #8892BF; }
.competence-sql  { background: #E6F7EE; color: #00758F; }

.competence-nom {
    font-family: 'Poppins', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--noir);
    margin-bottom: 0.25rem;
}

.competence-niveau {
    font-size: 0.8rem;
    color: var(--gris-fonce);
    font-weight: 500;
    margin-bottom: var(--espacement-sm);
}

.barre-progression {
    height: 6px;
    background: var(--gris-clair);
    border-radius: var(--rayon-complet);
    overflow: hidden;
}

.progression-remplie {
    height: 100%;
    background: linear-gradient(90deg, var(--bleu-gradient-debut), var(--bleu-gradient-fin));
    border-radius: var(--rayon-complet);
    animation: chargerBarre 1.5s ease-out 0.5s both;
}

.progression-php { background: linear-gradient(90deg, #8892BF, #b4bfe8); }
.progression-sql { background: linear-gradient(90deg, #00758F, #00a8cc); }

/* ─── PROJETS ─── */
.grille-projets {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--espacement-lg);
    align-items: start;
}

.carte-projet {
    background: var(--blanc);
    border-radius: var(--rayon-grand);
    overflow: hidden;
    border: 1px solid var(--gris-clair);
    box-shadow: var(--ombre-petite);
    transition: all var(--transition-normale);
}

.carte-projet:hover {
    transform: translateY(-8px);
    box-shadow: var(--ombre-grande);
}

.carte-projet-centrale {
    transform: scale(1.03);
    box-shadow: var(--ombre-moyenne);
    border-color: var(--bleu-primaire);
}

.carte-projet-centrale:hover {
    transform: scale(1.03) translateY(-8px);
}

.projet-image {
    position: relative;
    height: 100px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.projet-image-integration { background: linear-gradient(135deg, #1a73e8, #00b4d8); }
.projet-image-bloc         { background: linear-gradient(135deg, #7c3aed, #db2777); }
.projet-image-boulangerie  { background: linear-gradient(135deg, #f59e0b, #ef4444); }

/* Si tu ajoutes une vraie image, retire le placeholder et garde juste <img> */
.projet-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.projet-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    color: rgba(255,255,255,0.7);
    font-size: 0.85rem;
}

.projet-overlay {
    position: absolute;
    top: var(--espacement-sm);
    right: var(--espacement-sm);
}

.projet-tag {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(8px);
    color: var(--blanc);
    padding: 0.3rem 0.75rem;
    border-radius: var(--rayon-complet);
    border: 1px solid rgba(255,255,255,0.3);
}

.projet-corps {
    padding: var(--espacement-lg);
}

.projet-titre {
    font-family: 'Poppins', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--noir);
    margin-bottom: 0.5rem;
}

.projet-description {
    font-size: 0.9rem;
    color: var(--gris-fonce);
    line-height: 1.6;
    margin-bottom: var(--espacement-sm);
}

.projet-technologies {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.tech-tag {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2rem 0.65rem;
    background: var(--bleu-tres-clair);
    color: var(--bleu-primaire);
    border-radius: var(--rayon-complet);
}

/* ─── CONTACT ─── */
.grille-contact {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--espacement-lg);
    max-width: 900px;
    margin: 0 auto;
}

.carte-contact {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--espacement-sm);
    padding: var(--espacement-xl) var(--espacement-lg);
    background: var(--gris-tres-clair);
    border-radius: var(--rayon-grand);
    border: 1px solid var(--gris-clair);
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-normale);
    text-align: center;
}

.carte-contact:hover {
    background: var(--bleu-tres-clair);
    border-color: var(--bleu-primaire);
    transform: translateY(-6px);
    box-shadow: var(--ombre-grande);
}

.contact-icone {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--bleu-gradient-debut), var(--bleu-gradient-fin));
    color: var(--blanc);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--ombre-bouton);
}

.contact-type {
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    color: var(--noir);
}

.contact-valeur {
    font-size: 0.9rem;
    color: var(--gris-fonce);
    font-weight: 500;
    word-break: break-all;
}

/* ─── FOOTER ─── */
.pied-de-page {
    background: var(--noir);
    color: var(--gris-clair);
    padding: var(--espacement-xl) 0;
    text-align: center;
}

.texte-pied-de-page { font-size: 0.875rem; }

/* ─── ANIMATIONS ─── */
@keyframes apparitionHaut {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes soulignement {
    to { transform: scaleX(1); }
}

@keyframes rebond {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(10px); }
}

@keyframes flottement {
    0%, 100% { transform: translate(0, 0); }
    33%       { transform: translate(30px, -30px); }
    66%       { transform: translate(-30px, 30px); }
}

@keyframes chargerBarre {
    from { width: 0 !important; }
}

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
    .grille-competences { grid-template-columns: repeat(2, 1fr); }
    .grille-projets { grid-template-columns: 1fr; }
    .carte-projet-centrale { transform: none; }
    .carte-projet-centrale:hover { transform: translateY(-8px); }
    .grille-contact { grid-template-columns: 1fr; max-width: 400px; }

    /* Timeline mobile : colonne unique */
    .timeline::before { left: 24px; }
    .timeline-item { flex-direction: column !important; padding-left: 60px; }
    .timeline-point { left: 24px; top: 24px; }
    .timeline-contenu { width: 100%; text-align: left !important; }
    .timeline-gauche .timeline-badge { margin-left: 0; }
    .timeline-gauche .timeline-specialites { justify-content: flex-start; }
    .timeline-gauche .timeline-etablissement { justify-content: flex-start; }
}

@media (max-width: 600px) {
    .grille-competences { grid-template-columns: repeat(2, 1fr); }
    .menu-navigation { display: none; }
    .groupe-boutons { flex-direction: column; align-items: center; }
}