:root {
    --color-accent: #00ffc4;
    --color-background: #121212;
    --color-card-bg: #1e1e1e;
    --color-text-primary: #f0f0f0;
    --color-text-secondary: #aaaaaa;

    --font-heading: 'Poppins', sans-serif;
    --font-body: "Inter", sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--color-background);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: var(--color-text-primary);
    transition: color 0.3s;
    vertical-align: middle;
    /* Correction du décalage pour les liens inline-flex */
}

/* ------------------ Header & Navigation ------------------ */

.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 5%;
    background-color: var(--color-background);
    /* Ajout du fond pour cacher le contenu */
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-dot {
    color: var(--color-accent);
    font-size: 2rem;
}

.menu-toggle {
    display: flex;
    flex-direction: column;
    cursor: pointer;
    width: 30px;
    height: 25px;
    background: none;
    border: none;
    z-index: 1010;
    justify-content: space-around;
}

.menu-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    transition: all 0.3s;
    background-color: var(--color-text-primary);
    border-radius: 2px;
}

.nav-links {
    list-style: none;
    display: none;
    /* Masqué par défaut sur mobile */
}

/* Styles pour l'animation Underline GSAP */
.nav-links li a {
    position: relative;
    color: var(--color-text-primary);
    padding: 0.2rem 0;
    --underline-scale: 0;
    /* Variable contrôlée par GSAP */
}

.nav-links li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-accent);
    transform: scaleX(var(--underline-scale));
    transform-origin: left;
    transition: none;
    /* Pas de transition CSS si GSAP est utilisé */
}

/* Style d'ouverture du menu mobile */
.nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--color-background);
    z-index: 1005;
    padding-top: 6rem;
    justify-content: center;
    align-items: center;
    gap: 3rem;
}

.nav-links.open li a {
    font-size: 1.8rem;
    font-weight: 700;
}

/* ------------------ Hero Section ------------------ */

.hero-section {
    display: flex;
    flex-direction: column;
    height: 100vh;
    /* Correction : Hauteur plein écran */
    justify-content: center;
    /* Correction : Centrage vertical */
    padding: 0 5%;
    position: relative;
    padding-top: 10%;
    padding-bottom: 80px;
    /* Espace pour le scroll indicator sur mobile */
}

.greeting {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
    color: var(--color-accent);
}

.main-title {
    font-size: 3.5rem;
    font-family: var(--font-heading);
    line-height: 1.1;
    font-weight: 700;
    display: flex;
    flex-direction: column;
    margin-bottom: 0.5rem;
}

.text-line-2 {
    color: var(--color-accent);
}

.subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border: 2px solid var(--color-accent);
    border-radius: 5px;
    color: var(--color-accent);
    transition: all 0.3s ease;
}

.cta-btn:hover {
    background-color: var(--color-accent);
    color: var(--color-background);
}

.cta-btn .arrow {
    width: 19px;
    height: 18px;
    margin-left: 8px;
    transition: transform 0.3s;
    stroke: var(--color-accent);
}

.cta-btn:hover .arrow {
    transform: translateX(5px);
    stroke: var(--color-background);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 15px;
    /* Position plus basse */
    left: 50%;
    top: auto;
    transform: translateX(-50%);
    z-index: 10;
    text-align: center;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.mouse-icon {
    width: 25px;
    height: 40px;
    border: 2px solid var(--color-accent);
    border-radius: 50px;
    position: relative;
}

.mouse-icon::after {
    content: '';
    width: 4px;
    height: 8px;
    background-color: var(--color-accent);
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 4px;
}


/* ------------------ Global & Layout ------------------ */

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

section {
    padding: 8rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-family: var(--font-heading);
    margin-bottom: 0.5rem;
    text-align: center;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--color-accent);
    text-align: center;
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
}

.accent-text {
    color: var(--color-accent);
}

/* ------------------ Projects Section ------------------ */

.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    background-color: var(--color-card-bg, #1e1e1e);
    border-radius: 10px;
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease-out, box-shadow 0.3s ease-out;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 255, 196, 0.15);
}

.project-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--color-accent);
}

.project-tag {
    display: inline-block;
    background-color: var(--color-accent);
    color: var(--color-background);
    padding: 0.25rem 0.5rem;
    border-radius: 5px;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.project-description {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.project-stack {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    font-weight: 600;
}

.tech-pill {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-text-primary);
    padding: 0.3rem 0.6rem;
    border-radius: 20px;
    font-size: 0.875rem;
}

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

.link-btn {
    padding: 0.6rem 1.2rem;
    border-radius: 5px;
    border: 1px solid var(--color-accent);
    transition: all 0.3s;
    font-size: 0.9rem;
}

.link-btn:hover {
    background-color: var(--color-accent);
    color: var(--color-background);
}

.link-btn.secondary {
    border-color: var(--color-text-secondary);
    color: white;
}

.link-btn.secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-background);
    background-color: var(--color-accent);
}

/* ------------------ Section À Propos ------------------ */

.about-content {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    align-items: center;
    margin-top: 4rem;
}

.about-text {
    flex: 2;
    max-width: 600px;
}

.about-text p {
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.secondary-btn {
    background-color: transparent;
    border: 2px solid var(--color-text-secondary);
    color: var(--color-text-secondary);
}

.secondary-btn:hover {
    background-color: var(--color-accent);
    color: var(--color-background);
    border-color: var(--color-accent);
}

.about-photo-container {
    flex: 1;
    display: flex;
    justify-content: center;
    position: relative;
    padding: 1rem;
    border: 2px solid var(--color-accent);
    border-radius: 50%;
    width: 250px;
    height: 250px;
}

.profile-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    display: block;
}

/* Grille des Compétences */

.skills-title {
    font-size: 2rem;
    font-family: var(--font-heading);
    margin-top: 6rem;
    margin-bottom: 2rem;
    text-align: center;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 1.5rem;
    text-align: center;
}

.skill-item {
    background-color: var(--color-card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid rgba(0, 255, 196, 0.1);
    transition: all 0.3s ease;
}

.skill-item:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 5px 15px rgba(0, 255, 196, 0.1);
}

.skill-item i {
    font-size: 3rem;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}

.skill-item p {
    font-size: 0.9rem;
    font-weight: 600;
}

/* ------------------ Section Contact ------------------ */

.contact-section {
    padding: 10rem 0;
    text-align: center;
}

.contact-container {
    max-width: 800px;
}

.contact-title {
    font-size: 3rem;
}

.contact-description {
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 2rem auto 3rem auto;
    line-height: 1.6;
}

.final-cta {
    font-size: 1.1rem;
    padding: 1rem 2.5rem;
    margin: 10px auto;
    width: 100%;
    max-width: 350px;
    justify-content: center;
    display: flex;
}

/* ------------------ Pied de Page (Footer) ------------------ */

.main-footer {
    padding: 2rem 5%;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    background-color: var(--color-card-bg);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.social-links a {
    font-size: 1.5rem;
    margin: 0 0.8rem;
    color: var(--color-text-secondary);
    transition: color 0.3s;
}

.social-links a:hover {
    color: var(--color-accent);
}

.copyright {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

/* ------------------ Media Queries ------------------ */

@media (min-width:768px) {
    .menu-toggle {
        display: none;
    }

    .nav-links {
        display: flex;
        gap: 2rem;
    }
    .main-title {
        font-size: 4.5rem;
        margin-bottom: 1rem;
    }

    .subtitle {
        font-size: 1.8rem;
        margin-bottom: 3rem;
    }

    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-start;
    }


    .about-photo-container {
        width: 300px;
        height: 300px;
        transform: rotate(2deg);
        margin-top: 1rem;
    }

    .skills-grid {
        grid-template-columns: repeat(6, 1fr);
    }

    .final-cta {
        display: inline-flex;
        width: auto;
        margin: 0 1rem;
    }
}

@media (min-width:1024px) {
    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}