/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
    background: #fff;
    color: #000;
    line-height: 1.6;
}

a {
    color: inherit;
    text-decoration: none;
}

/* Navigation */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 20px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nav-logo {
    font-size: 16px;
    font-weight: 400;
    position: relative;
    transition: color 0.3s ease;
}

.nav-link {
    font-size: 16px;
    position: relative;
    transition: color 0.3s ease;
}

.nav-link span {
    opacity: 0.5;
    font-size: 14px;
    margin-left: 5px;
}

/* Ligne verte fluo au survol */
.nav-logo::after,
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #00ff00;
    transition: width 0.3s ease;
}

.nav-logo:hover::after,
.nav-link:hover::after {
    width: 100%;
}

/* Container principal */
.about-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 140px 60px 80px;
}

/* Grid principal */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    margin-bottom: 120px;
}

/* Colonne gauche */
.left-column {
    max-width: 600px;
}

.section-title {
    font-size: 14px;
    font-weight: 400;
    text-transform: lowercase;
    margin-bottom: 30px;
    opacity: 0.6;
}

.presentation-text p {
    font-size: 18px;
    line-height: 1.7;
    margin-bottom: 20px;
}

/* Colonnes droite */
.right-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.info-column {
}

.column-title {
    font-size: 14px;
    font-weight: 400;
    text-transform: lowercase;
    margin-bottom: 20px;
    opacity: 0.6;
}

/* Listes de compétences */
.info-list {
    list-style: none;
}

.info-list li {
    font-size: 16px;
    margin-bottom: 10px;
    line-height: 1.6;
}

/* Expériences */
.experience-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.exp-item {
}

.exp-title {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 5px;
}

.exp-years {
    font-size: 14px;
    opacity: 0.5;
}

/* Section Contact */
.contact-section {
    margin-top: 120px;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 30px;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: opacity 0.3s ease;
}

.contact-item:hover {
    opacity: 0.6;
}

.contact-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.5;
}

.contact-value {
    font-size: 18px;
}

.contact-two-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    margin-top: 30px;
}

.contact-left {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.contact-right {
}
.contact-headers {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    margin-bottom: 30px;
}

.contact-headers .section-title {
    margin-bottom: 0;
}

.contact-two-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
}

.contact-left {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

/* Footer */
.footer {
    padding: 60px 60px 40px;
    text-align: center;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.footer p {
    font-size: 14px;
    opacity: 0.6;
}


/* Responsive */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .right-columns {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .main-nav {
        padding: 15px 20px;
    }
    
    .about-container {
        padding: 100px 30px 60px;
    }
    
    .about-grid {
        gap: 50px;
        margin-bottom: 80px;
    }
    
    .contact-section {
        margin-top: 80px;
    }
    
    .footer {
        padding: 40px 30px 30px;
    }
}

/* Frise animée */
.scrolling-banner {
    width: 100%;
    max-width: 100vw;
    margin: 60px auto;
    padding: 40px 0;
    overflow: hidden;
    display: flex;
    justify-content: center;
}

.banner-track {
    display: flex;
    gap: 0;
    animation: scroll 30s linear infinite;
}

.banner-track img {
    height: 150px;
    width: auto;
    display: block;
    flex-shrink: 0;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}