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

:root {
    --primary-color: #00aaff;
    --background-color: #121212;
    --card-bg-color: #1e1e1e;
    --text-color: #e0e0e0;
    --heading-color: #ffffff;
    --shadow-color: rgba(0, 170, 255, 0.1);
    --hero-bg: linear-gradient(135deg, #1e1e1e, #121212);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    background-color: var(--background-color);
    color: var(--text-color);
    overflow-x: hidden; /* Empêche le défilement horizontal */
}

/* --- Header --- */
header {
    background: var(--hero-bg);
    color: var(--heading-color);
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
    position: relative;
    border-bottom: 1px solid var(--card-bg-color);
}

.header-content {
    max-width: 800px;
}

.header-content .profile-pic {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    border: 4px solid var(--primary-color);
    box-shadow: 0 0 30px var(--shadow-color);
    margin-bottom: 1.5rem;
    object-fit: cover;
    object-position: center; /* Centrer la photo */
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.header-content .profile-pic:hover {
    transform: scale(1.05);
    box-shadow: 0 0 45px rgba(0, 170, 255, 0.25);
}

.header-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

.header-content .subtitle {
    font-size: 1.2rem;
    font-weight: 300;
    min-height: 40px;
    color: var(--text-color);
    margin-top: 0.5rem;
    margin-bottom: 1.5rem;
}

.cv-btn {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 0.8rem 1.8rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    display: inline-block;
    transition: all 0.3s;
}

.cv-btn:hover {
    background: var(--primary-color);
    color: var(--background-color);
    box-shadow: 0 0 20px var(--shadow-color);
}

.cv-btn .fas {
    margin-left: 0.5rem;
}

/* --- Navigation --- */
nav {
    background: rgba(18, 18, 18, 0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between; /* Espace entre le logo (si ajouté) et le menu */
    align-items: center;
    height: 70px;
}

.nav-toggle {
    display: block;
    background: none;
    border: none;
    color: var(--heading-color);
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 1001;
    padding: 0.5rem;
}

.nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    max-width: 300px;
    height: 100vh;
    background: var(--card-bg-color);
    list-style: none;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: 5rem;
    transition: right 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    display: flex;
}

.nav-menu.active {
    right: 0;
    box-shadow: -10px 0 30px rgba(0,0,0,0.5);
}

.nav-menu li {
    width: 100%;
    text-align: center;
}

.nav-menu li a {
    color: var(--text-color);
    padding: 1.5rem 0;
    display: block;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.2rem;
    transition: color 0.3s, background-color 0.3s;
}

.nav-menu li a:hover {
    color: var(--primary-color);
    background-color: rgba(0, 170, 255, 0.05);
}

/* --- Main Content --- */
main {
    padding: 2rem 1rem;
    max-width: 1100px;
    margin: auto;
}

section {
    margin-bottom: 4rem;
    padding: 2rem 1.5rem;
    border-radius: 15px;
    background: var(--card-bg-color);
    box-shadow: 0 8px 30px rgba(0,0,0,0.2);
    opacity: 0; /* Pour l'animation JS */
}

section h2 {
    text-align: center;
    font-size: 2.2rem;
    color: var(--heading-color);
    margin-bottom: 3rem;
    position: relative;
}

section h2::after {
    content: '';
    position: absolute;
    width: 70px;
    height: 4px;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    border-radius: 2px;
}

section h2 .fas, section h2 .fab {
    margin-right: 10px;
    color: var(--primary-color);
}

/* --- Sections spécifiques --- */
#a-propos .about-highlights {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

#a-propos .about-highlights li {
    background: #2a2a2a;
    padding: 0.8rem 1.2rem;
    border-radius: 8px;
    border-left: 3px solid var(--primary-color);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
}

.skill-card {
    background: #2a2a2a;
    padding: 1.5rem 1rem;
    border-radius: 10px;
    text-align: center;
    font-weight: 600;
    border: 1px solid #333;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.skill-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: 0 0 20px var(--shadow-color);
}

.skill-card .fab, .skill-card .fas {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    transition: transform 0.3s;
}

#experience {
    background: transparent;
    box-shadow: none;
    padding: 0;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 30px; /* Espace pour la ligne */
}

.timeline::after {
    content: '';
    position: absolute;
    width: 3px;
    background-color: #333;
    top: 0;
    bottom: 0;
    left: 0;
}

.timeline-item {
    padding: 20px 0 20px 30px;
    position: relative;
}

.timeline-dot {
    position: absolute;
    width: 16px;
    height: 16px;
    left: -8px;
    background-color: var(--primary-color);
    border: 4px solid var(--background-color);
    top: 35px;
    border-radius: 50%;
    z-index: 1;
    transition: transform 0.3s;
}

.timeline-item:hover .timeline-dot {
    transform: scale(1.2);
}

.timeline-content {
    padding: 20px;
    background-color: var(--card-bg-color);
    position: relative;
    border-radius: 8px;
    border-left: 3px solid var(--primary-color);
}

.timeline-logo {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    object-fit: cover;
    position: absolute;
    top: 20px;
    right: 20px;
    border: 2px solid #333;
}

.timeline-content h3 {
    margin-top: 0;
    color: var(--heading-color);
    padding-right: 60px; /* Espace pour le logo */
}

.timeline-company { font-weight: bold; color: var(--primary-color); }
.timeline-date { font-size: 0.9em; font-style: italic; margin-bottom: 10px; color: #aaa; }

.formation-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.formation-card {
    background: #2a2a2a;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    border: 1px solid #333;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.formation-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: 0 0 20px var(--shadow-color);
}

.formation-card .fas, .formation-card .fab {
    font-size: 2.8rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

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

.project-card {
    background: var(--card-bg-color);
    border-radius: 10px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    border: 1px solid #333;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 0 30px var(--shadow-color);
}

.project-image-container {
    position: relative;
    overflow: hidden;
    height: 220px;
}

.project-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.project-card:hover .project-image {
    transform: scale(1.05);
}

.project-info {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.project-tags { margin: 1rem 0; flex-grow: 1; }

.project-tags span {
    background: var(--primary-color);
    color: #121212;
    padding: 0.4rem 0.8rem;
    border-radius: 5px;
    font-size: 0.8rem;
    margin-right: 5px;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 5px;
}

.project-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 700;
    transition: color 0.3s;
    align-self: flex-start;
    margin-top: 1rem;
}

#contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

#contact-form .form-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

#contact-form input,
#contact-form textarea {
    width: 100%;
    padding: 1rem;
    background: #2a2a2a;
    border: 1px solid #333;
    border-radius: 8px;
    color: var(--text-color);
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}

#contact-form input:focus,
#contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 10px var(--shadow-color);
}

.contact-btn {
    background: var(--primary-color);
    color: #121212;
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
}

/* --- Footer --- */
footer {
    text-align: center;
    padding: 3rem 1rem;
    background: #1e1e1e;
    color: #aaa;
    margin-top: 3rem;
}

.social-links {
    margin-bottom: 1.5rem;
}

.social-links a {
    color: #aaa;
    margin: 0 12px;
    font-size: 1.6rem;
    text-decoration: none;
    transition: color 0.3s, transform 0.3s;
}

.social-links a:hover {
    color: var(--primary-color);
    transform: translateY(-3px);
}

/* --- Responsive Design (Desktop) --- */
@media (min-width: 768px) {
    .header-content h1 { font-size: 3.2rem; }
    .header-content .subtitle { font-size: 1.4rem; }

    nav {
        justify-content: flex-end;
        padding: 0 2rem;
    }

    .nav-toggle { display: none; }

    .nav-menu {
        position: static;
        flex-direction: row;
        height: auto;
        width: auto;
        background: transparent;
        padding-top: 0;
        right: 0;
        display: flex;
    }

    .nav-menu.active { box-shadow: none; }

    .nav-menu li a {
        padding: 1.2rem 1.5rem;
        font-size: 1rem;
    }

    .nav-menu li a:hover { background: transparent; }

    .nav-menu li a::after {
        content: '';
        position: absolute;
        width: 0;
        height: 3px;
        bottom: 10px;
        left: 50%;
        transform: translateX(-50%);
        background-color: var(--primary-color);
        transition: width 0.3s ease;
    }

    .nav-menu li a:hover::after { width: 50%; }

    main { padding: 4rem 2rem; }
    section { padding: 3rem; }
    section h2 { font-size: 2.5rem; }

    #a-propos .about-highlights {
        flex-direction: row;
        justify-content: center;
    }

    .formation-grid { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
    .projects-grid { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

    #contact-form .form-group { flex-direction: row; gap: 1.5rem; }

    .timeline { padding-left: 0; }
    .timeline::after { left: 50%; margin-left: -1.5px; }
    .timeline-item { width: 50%; padding: 10px 40px; }
    .timeline-item:nth-child(odd) { left: 0; padding-left: 0; }
    .timeline-item:nth-child(even) { left: 50%; padding-left: 40px; }
    .timeline-dot { top: 25px; }
    .timeline-item:nth-child(odd) .timeline-dot { right: -8px; left: auto; }
    .timeline-item:nth-child(even) .timeline-dot { left: -8px; }
    .timeline-content { padding: 20px; }
    .timeline-item:nth-child(even) .timeline-content { border-left: none; border-right: 3px solid var(--primary-color); }
    .timeline-logo { width: 50px; height: 50px; }
    .timeline-item:nth-child(odd) .timeline-logo { right: 20px; left: auto; }
    .timeline-item:nth-child(even) .timeline-logo { left: 20px; right: auto; }
    .timeline-content h3 { padding-right: 65px; }
    .timeline-item:nth-child(even) .timeline-content h3 { padding-right: 0; padding-left: 65px; }
}

@media (min-width: 1200px) {
    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}