* {
    scroll-behavior: smooth;
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'DM Sans', sans-serif;
    background: #0a0a0a;
    color: #fff;
}

/* ============ NAVIGATION ============ */

.barre-navigation {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: rgba(10, 10, 10, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    height: 56px;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.logo-marque {
    display: none;
    font-family: 'Syne', sans-serif;
    font-weight: 800;
    font-size: 20px;
    color: #fff;
    letter-spacing: 0.05em;
}

.menu-mobile-toggle {
    display: none;
}

.menu-mobile-bouton {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    z-index: 200;
}

.menu-mobile-bouton span {
    display: block;
    width: 24px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
    transform-origin: center;
}

.menu-mobile-toggle:checked ~ .menu-mobile-bouton span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.menu-mobile-toggle:checked ~ .menu-mobile-bouton span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
.menu-mobile-toggle:checked ~ .menu-mobile-bouton span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.menu-liens {
    display: flex;
    justify-content: space-around;
    align-items: center;
    width: 600px;
    background-color: rgba(255,255,255,0.07);
    border-radius: 50px;
    border: 1px solid rgba(255,255,255,0.12);
    padding: 6px 16px;
    gap: 4px;
}

.lien-menu {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    font-family: 'DM Sans', sans-serif;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.02em;
    padding: 6px 16px;
    border-radius: 50px;
    transition: background 0.2s, color 0.2s;
}

.lien-menu:hover {
    background-color: rgba(255,255,255,0.12);
    color: #fff;
}

/* ============ EN-TÊTES DE SECTION ============ */

.entete-section {
    text-align: center;
    padding-top: 100px;
    padding-bottom: 60px;
}

.entete-section.claire .titre-section {
    color: #fff;
    text-shadow: 0 2px 12px rgba(0,0,0,0.5);
}
.entete-section.claire .etiquette-section {
    color: rgba(255,255,255,0.55);
}

.etiquette-section {
    font-family: 'DM Sans', sans-serif;
    font-size: 13px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.4);
    margin: 0 0 10px;
}

.titre-section {
    font-family: 'Syne', sans-serif;
    font-size: clamp(36px, 5vw, 60px);
    font-weight: 800;
    color: #fff;
    margin: 0;
    letter-spacing: -0.02em;
    font-size: 30px;
}

/* ============ ACCUEIL ============ */

#accueil {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    text-align: center;
    background: url(images/accueilback.jpg) no-repeat center center fixed;
    background-size: cover;
    position: relative;
}

#accueil::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.45) 0%, rgba(0,0,0,0.65) 100%);
}

.accueil-contenu {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 750px;
    padding: 0 24px;
}

.accueil-etiquette {
    font-size: 12px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.55);
    margin: 0 0 16px;
    border: 1px solid rgba(255,255,255,0.2);
    padding: 5px 16px;
    border-radius: 50px;
}

.accueil-titre {
    font-family: 'Syne', sans-serif;
    font-size: clamp(32px, 6vw, 64px);
    font-weight: 800;
    color: #ffffff;
    margin: 0 0 24px;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.accueil-description {
    font-size: 17px;
    line-height: 1.75;
    color: rgba(255,255,255,0.82);
    max-width: 600px;
    margin: 0 0 36px;
}

.accueil-description strong {
    color: #fff;
    font-weight: 600;
}

.accueil-boutons {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    justify-content: center;
}

.bouton-principal {
    display: inline-block;
    background: #fff;
    color: #0a0a0a;
    text-decoration: none;
    font-weight: 700;
    font-size: 14px;
    padding: 13px 30px;
    border-radius: 50px;
    letter-spacing: 0.02em;
    transition: transform 0.2s, box-shadow 0.2s;
}

.bouton-principal:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255,255,255,0.25);
}

.bouton-secondaire {
    display: inline-block;
    background: transparent;
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    padding: 13px 30px;
    border-radius: 50px;
    border: 1px solid rgba(255,255,255,0.35);
    letter-spacing: 0.02em;
    transition: background 0.2s, border-color 0.2s;
}

.bouton-secondaire:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.6);
}

.indicateur-defilement {
    position: absolute;
    bottom: 36px;
    z-index: 1;
}

.indicateur-defilement span {
    display: block;
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, rgba(255,255,255,0) 0%, rgba(255,255,255,0.6) 100%);
    margin: 0 auto;
    animation: pulsation-defilement 1.8s ease-in-out infinite;
}

@keyframes pulsation-defilement {
    0%, 100% { opacity: 0.3; transform: scaleY(1); }
    50% { opacity: 1; transform: scaleY(1.1); }
}

/* ============ PORTFOLIO ============ */

#portfolio {
    background-color: #0a0a0a;
    padding-bottom: 100px;
    min-height: 100vh;
    background: url(images/portfolioback.jpg) no-repeat center center fixed;
}

.grille-projets {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 20px;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 30px;
}

.carte-projet {
    background: #141414;
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.3s, border-color 0.3s;
    display: flex;
    flex-direction: column;
}

.carte-projet:hover {
    transform: translateY(-6px);
    border-color: rgba(255,255,255,0.18);
}

.carte-projet.mise-en-avant {
    grid-column: 1 / 3;
    flex-direction: row;
}

.projet-visuel {
    flex-shrink: 0;
}

.carte-projet.mise-en-avant .projet-visuel {
    width: 55%;
    min-height: 320px;
}

.carte-projet:not(.mise-en-avant) .projet-visuel {
    height: 200px;
    width: 100%;
}

.projet-visuel-1 {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 40%, #0f3460 100%);
    position: relative;
}
.projet-visuel-1::after {
    content: '</>';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: 'Syne', monospace;
    font-size: 48px;
    font-weight: 800;
    color: rgba(255,255,255,0.12);
}

.projet-visuel-2 {
    background: linear-gradient(135deg, #1a0533 0%, #2d0b4e 100%);
    position: relative;
}
.projet-visuel-2::after {
    content: '★';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 52px;
    color: rgba(255,255,255,0.1);
}

.projet-visuel-3 {
    background: linear-gradient(135deg, #1a1a2e 0%, #2a2a4e 100%);
    position: relative;
}
.projet-visuel-3::after {
    content: '◉';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 52px;
    color: rgba(255,255,255,0.1);
}

.projet-visuel-4 {
    background: linear-gradient(135deg, #2e1a00 0%, #4a2e00 100%);
    position: relative;
}
.projet-visuel-4::after {
    content: '▦';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 52px;
    color: rgba(255,255,255,0.1);
}

.projet-details {
    padding: 28px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 10px;
}

.projet-categorie {
    font-size: 11px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.4);
    font-weight: 500;
}

.projet-details h3 {
    font-family: 'Syne', sans-serif;
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    margin: 0;
}

.projet-details p {
    font-size: 14px;
    line-height: 1.65;
    color: rgba(255,255,255,0.55);
    margin: 0;
}

.projet-technologies {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 6px;
}

.projet-technologies span {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: rgba(255,255,255,0.7);
    background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.12);
    padding: 4px 12px;
    border-radius: 50px;
}

/* ============ COMPÉTENCES ============ */

#competences {
    background: #a0a0a0;
    padding-bottom: 100px;
    min-height: 100vh;
    background: url(images/compétenceback.png) no-repeat center center fixed;
    background-size: cover;
}

.competences-conteneur {
    display: flex;
    gap: 60px;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 30px;
    align-items: flex-start;
}

.colonne-services {
    flex: 1;
    background: linear-gradient(145deg, rgba(10,10,18,0.92) 0%, rgba(25,25,45,0.88) 100%);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 20px;
    padding: 36px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 8px 40px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.08);
}

.competences-introduction {
    font-size: 15px;
    line-height: 1.8;
    color: rgba(255,255,255,0.55);
    margin: 0 0 36px;
}

.liste-services {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.service {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.service-icone {
    font-size: 22px;
    color: rgba(255,255,255,0.5);
    margin-top: 2px;
    flex-shrink: 0;
}

.service h4 {
    font-family: 'Syne', sans-serif;
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    margin: 0 0 4px;
}

.service p {
    font-size: 14px;
    line-height: 1.6;
    color: rgba(255,255,255,0.45);
    margin: 0;
}

.colonne-niveaux {
    flex: 1;
    background: linear-gradient(145deg, rgba(255,255,255,0.92) 0%, rgba(235,235,245,0.88) 100%);
    border: 1px solid rgba(255,255,255,0.6);
    border-radius: 20px;
    padding: 36px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 8px 40px rgba(0,0,0,0.25), inset 0 1px 0 rgba(255,255,255,0.9);
}

.liste-niveaux {
    display: flex;
    flex-direction: column;
    gap: 36px;
}

.niveau {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.niveau-entete {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}

.niveau-nom {
    font-family: 'Syne', sans-serif;
    font-size: 18px;
    font-weight: 700;
    color: #0a0a0a;
}

.niveau-pourcentage {
    font-family: 'Syne', sans-serif;
    font-size: 14px;
    font-weight: 800;
    color: #0a0a0a;
}

.niveau-piste {
    width: 100%;
    height: 10px;
    background: rgba(0,0,0,0.1);
    border-radius: 50px;
    overflow: hidden;
}

.niveau-remplissage {
    height: 100%;
    border-radius: 50px;
    position: relative;
    animation: remplissage-barre 1.2s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.remplissage-100 {
    background: linear-gradient(90deg, #0a0a0a 0%, #444 100%);
    width: 100%;
}

.remplissage-20 {
    background: linear-gradient(90deg, #c45c00 0%, #f07e30 100%);
    width: 20%;
}

@keyframes remplissage-barre {
    from { width: 0%; }
}

.niveau-lueur {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 0 8px 3px rgba(255,255,255,0.6);
}

.lueur-orange {
    box-shadow: 0 0 8px 3px rgba(240, 126, 48, 0.7);
}

.niveau-description {
    font-size: 13px;
    color: #888;
    margin: 0;
    line-height: 1.5;
}

/* ============ CONTACT ============ */

#contact {
    background: #0a0a0a;
    padding-bottom: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

#contact .entete-section {
    flex-shrink: 0;
}

.contact-conteneur {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.contact-colonne {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.contact-colonne h3 {
    font-family: 'Syne', sans-serif;
    font-size: 28px;
    font-weight: 800;
    color: #fff;
    margin: 0 0 16px;
}

.contact-colonne > p {
    font-size: 15px;
    line-height: 1.8;
    color: rgba(255,255,255,0.55);
    margin: 0 0 40px;
}

.liste-contacts {
    display: flex;
    flex-direction: column;
    gap: 16px;
    width: 80%;
}

.carte-contact {
    display: flex;
    align-items: center;
    gap: 16px;
    background: #141414;
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 14px;
    padding: 20px 24px;
    text-decoration: none;
    transition: border-color 0.2s, transform 0.2s;
}

.carte-contact:hover {
    border-color: rgba(255,255,255,0.25);
    transform: translateX(6px);
}

.contact-icone {
    font-size: 24px;
    flex-shrink: 0;
}

.contact-libelle {
    display: block;
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.35);
    margin-bottom: 3px;
}

.contact-valeur {
    display: block;
    font-family: 'Syne', sans-serif;
    font-size: 16px;
    font-weight: 700;
    color: #fff;
}

.pied-page {
    border-top: 1px solid rgba(255,255,255,0.06);
    text-align: center;
    padding: 28px 20px;
    color: rgba(255,255,255,0.25);
    font-size: 13px;
    letter-spacing: 0.04em;
    margin-top: 10%;
}

/* ============ RESPONSIVE ============ */

@media (max-width: 768px) {

    .barre-navigation {
        justify-content: space-between;
        padding: 0 20px;
    }

    .logo-marque {
        display: block;
    }

    .menu-mobile-bouton {
        display: flex;
    }

    .menu-liens {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(8, 8, 12, 0.97);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 10px;
        border-radius: 0;
        border: none;
        transform: translateX(100%);
        transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
        z-index: 150;
        width: 100%;
        padding: 0;
    }

    .menu-mobile-toggle:checked ~ .menu-liens {
        transform: translateX(0);
    }

    .lien-menu {
        font-size: 28px;
        font-family: 'Syne', sans-serif;
        font-weight: 700;
        padding: 14px 30px;
        letter-spacing: -0.01em;
        color: rgba(255,255,255,0.85);
        width: 80%;
        text-align: center;
        border-radius: 14px;
    }

    .lien-menu:hover {
        background-color: rgba(255,255,255,0.08);
    }

    #accueil {
        background-attachment: scroll;
    }

    .accueil-contenu {
        padding: 0 20px;
    }

    .accueil-description {
        font-size: 15px;
    }

    .accueil-boutons {
        flex-direction: column;
        align-items: center;
        width: 100%;
    }

    .bouton-principal, .bouton-secondaire {
        width: 100%;
        text-align: center;
    }

    .entete-section {
        padding-top: 80px;
        padding-bottom: 40px;
        padding-left: 20px;
        padding-right: 20px;
    }

    #portfolio {
        background-attachment: scroll;
        padding-bottom: 60px;
    }

    .grille-projets {
        grid-template-columns: 1fr;
        padding: 0 16px;
        gap: 16px;
    }

    .carte-projet.mise-en-avant {
        grid-column: 1 / 2;
        flex-direction: column;
    }

    .carte-projet.mise-en-avant .projet-visuel {
        width: 100%;
        min-height: 200px;
    }

    #competences {
        background-attachment: scroll;
        padding-bottom: 60px;
    }

    .competences-conteneur {
        flex-direction: column;
        gap: 24px;
        padding: 0 16px;
    }

    .colonne-services, .colonne-niveaux {
        width: 100%;
        padding: 24px;
    }

    .niveau-nom {
        color: #0a0a0a;
    }

    .niveau-pourcentage {
        color: #0a0a0a;
    }

    .contact-conteneur {
        flex-direction: column;
        gap: 30px;
        padding: 0 16px 60px;
    }

    .contact-valeur {
        font-size: 12px;
    }
}