/* Importation de Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700&family=Roboto:wght@300;400&display=swap');

/* Variables CSS pour faciliter la personnalisation */
:root {
    --primary-color: #007bff; /* Bleu vibrant */
    --secondary-color: #6c757d; /* Gris doux */
    --accent-color: #28a745; /* Vert pour les succès/actions */
    --text-color: #343a40; /* Gris foncé */
    --light-bg: #f8f9fa; /* Arrière-plan clair */
    --dark-bg: #343a40; /* Arrière-plan foncé pour le header/footer */
    --white: #ffffff;
    --border-radius: 8px;
    --box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Roboto', sans-serif;
}

/* Réinitialisation de base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth; /* Défilement doux pour les ancres */
}

body {
    font-family: var(--font-body);
    line-height: 1.7;
    color: var(--text-color);
    background-color: var(--light-bg);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typographie */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--dark-bg);
    margin-bottom: 20px;
    line-height: 1.2;
}

h2 {
    font-size: 2.8em;
    text-align: center;
    margin-bottom: 50px;
    position: relative;
}

h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 15px auto 0;
    border-radius: 2px;
}

p {
    margin-bottom: 15px;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: darken(var(--primary-color), 10%);
}

.highlight {
    color: var(--primary-color);
    font-weight: 700;
}

.section-padding {
    padding: 80px 0;
}

/* --- Header & Navigation --- */
.header {
    background-color: var(--dark-bg);
    color: var(--white);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--box-shadow);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.8em;
    font-weight: 700;
    color: var(--white);
}

.navbar .nav-menu {
    list-style: none;
    display: flex;
}

.navbar .nav-menu li {
    margin-left: 30px;
}

.navbar .nav-menu a {
    color: var(--white);
    font-weight: 500;
    text-transform: uppercase;
    padding: 5px 0;
    position: relative;
}

.navbar .nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.navbar .nav-menu a:hover::after {
    width: 100%;
}

/* Bouton hamburger (mobile) */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    position: relative;
    z-index: 1100;
}

.hamburger {
    display: block;
    width: 30px;
    height: 3px;
    background-color: var(--white);
    position: relative;
    transition: background-color 0.3s ease;
}

.hamburger::before,
.hamburger::after {
    content: '';
    display: block;
    width: 30px;
    height: 3px;
    background-color: var(--white);
    position: absolute;
    transition: transform 0.3s ease;
}

.hamburger::before {
    top: -10px;
}

.hamburger::after {
    top: 10px;
}

.nav-toggle.open .hamburger {
    background-color: transparent;
}

.nav-toggle.open .hamburger::before {
    transform: translateY(10px) rotate(45deg);
}

.nav-toggle.open .hamburger::after {
    transform: translateY(-10px) rotate(-45deg);
}


/* --- Boutons généraux --- */
.button {
    display: inline-block;
    padding: 12px 25px;
    border-radius: var(--border-radius);
    font-weight: 700;
    text-transform: uppercase;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 0.9em;
    text-align: center;
}

.primary-button {
    background-color: var(--primary-color);
    color: var(--white);
}

.primary-button:hover {
    background-color: #0056b3;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 123, 255, 0.3);
}

.secondary-button {
    background-color: var(--secondary-color);
    color: var(--white);
}

.secondary-button:hover {
    background-color: #5a6268;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(108, 117, 125, 0.3);
}

.button-small {
    padding: 8px 15px;
    font-size: 0.8em;
    margin: 5px;
    border-radius: 5px;
    background-color: var(--primary-color);
    color: var(--white);
}

.button-small:hover {
    background-color: #0056b3;
}

.mt-40 {
    margin-top: 40px;
}

/* --- Hero Section --- */
.hero-section {
    background: linear-gradient(to right, rgba(17, 0, 255, 0.8), rgba(0, 123, 255, 0.6)), url('images/hero-bg.jpg') no-repeat center center/cover;
    background-color: #8c00ff; /* Fallback */
    color: var(--white);
    text-align: center;
    padding: 120px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80vh;
}

.hero-content {
    animation: fadeIn 1s ease-out;
}

.profile-pic {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    border: 7px solid var(--white);
    box-shadow: 0 0 0 7px rgba(0, 110, 255, 0.4);
    margin-bottom: 25px;
    transition: transform 0.3s ease;
}

.profile-pic:hover {
    transform: scale(1.05);
}

.hero-section h2 {
    font-size: 3.5em;
    margin-bottom: 10px;
    color: var(--white);
}

.hero-section h2::after {
    background-color: var(--white);
}

.hero-section .tagline {
    font-size: 1.5em;
    margin-bottom: 30px;
    font-weight: 300;
}

.social-links {
    margin-top: 20px;
    margin-bottom: 30px;
}

.social-links a {
    display: inline-block;
    margin: 0 10px;
    font-size: 2em;
    color: var(--white);
    transition: transform 0.3s ease;
}

.social-links img {
    width: 35px;
    height: 35px;
    vertical-align: middle;
}

.social-links a:hover {
    transform: translateY(-5px);
    color: var(--accent-color);
}


/* --- About Section --- */
.about-section {
    background-color: var(--white);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    font-size: 1.1em;
}

.about-content p {
    margin-bottom: 20px;
}


/* --- Stage Section (STYLE CARTE POUR SEPARER) --- */
.stage-section {
    background-color: var(--light-bg);
}

.stage-entry {
    background-color: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 30px; /* Espace entre les deux stages */
    transition: transform 0.3s ease;
}

.stage-entry:hover {
    transform: translateY(-5px);
}

.stage-duration {
    font-style: italic;
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-weight: 500;
}


/* --- Realisations Professionnelles (NOUVEAU STYLE TABLEAU) --- */
.realisations-section {
    background-color: var(--white);
}

.years-split-container {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-top: 40px;
}

.year-column {
    flex: 1; /* Chaque colonne prend 50% de l'espace */
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.year-title {
    text-align: center;
    font-size: 1.8em;
    color: var(--primary-color);
    background-color: var(--light-bg);
    padding: 10px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    border-bottom: 3px solid var(--primary-color);
}

.vertical-divider {
    width: 2px;
    background-color: #ddd;
    margin: 0 10px;
    align-self: stretch; /* La ligne prend toute la hauteur */
}

/* Ajustement des cartes doc-item */
.year-column .doc-item {
    background-color: var(--white); /* S'assure que le fond est blanc */
    border: 1px solid #eee; /* Légère bordure */
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.year-column .doc-item:hover {
    transform: translateY(-3px);
    border-left: 4px solid var(--primary-color);
}

.year-column .doc-item h4 {
    font-size: 1.2em;
    margin-bottom: 10px;
    font-family: var(--font-heading);
}

.year-column .doc-item h4 a {
    color: var(--dark-bg);
    text-decoration: none;
    font-weight: 700;
}

.year-column .doc-item h4 a:hover {
    color: var(--primary-color);
}


/* --- Skills Section --- */
.skills-section {
    background-color: var(--white);
}

.skills-document-link {
    background-color: var(--light-bg);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease;
    max-width: 600px;
    margin: 30px auto 0;
}

.skills-document-link:hover {
    transform: translateY(-5px);
}

/* --- Contact Section --- */
.contact-section {
    background-color: var(--light-bg);
}

/* --- Footer --- */
.footer {
    background-color: var(--dark-bg);
    color: var(--white);
    padding: 30px 0;
    text-align: center;
    font-size: 0.9em;
}

.footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.footer-social-links a {
    margin: 0 10px;
}

.footer-social-links img {
    width: 25px;
    height: 25px;
    vertical-align: middle;
    filter: invert(1);
    transition: transform 0.3s ease;
}

.footer-social-links img:hover {
    transform: translateY(-3px);
}

/* --- Animations --- */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Media Queries pour la réactivité --- */

@media (max-width: 992px) {
    .section-padding {
        padding: 60px 0;
    }

    h2 {
        font-size: 2.2em;
        margin-bottom: 40px;
    }

    .hero-section h2 {
        font-size: 3em;
    }
    .hero-section .tagline {
        font-size: 1.3em;
    }
}

@media (max-width: 768px) {
    .header .container {
        flex-wrap: wrap;
        justify-content: center;
    }

    .logo {
        margin-bottom: 15px;
        order: 1;
    }

    .nav-toggle {
        display: block;
        order: 2;
    }

    .navbar {
        width: 100%;
        order: 3;
    }

    .navbar .nav-menu {
        flex-direction: column;
        align-items: center;
        background-color: var(--dark-bg);
        position: absolute;
        width: 100%;
        left: 0;
        top: 90px;
        padding: 20px 0;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        transform: translateY(-100%);
        transition: transform 0.3s ease-in-out;
        opacity: 0;
        pointer-events: none;
    }

    .navbar .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .navbar .nav-menu li {
        margin: 10px 0;
    }

    /* Réorganisation colonnes en mobile */
    .years-split-container {
        flex-direction: column;
    }
    
    .vertical-divider {
        display: none;
    }
    
    .year-column {
        margin-bottom: 40px;
    }

    .hero-section {
        padding: 80px 0;
        min-height: 70vh;
    }

    .hero-section h2 {
        font-size: 2.5em;
    }
    .hero-section .tagline {
        font-size: 1.1em;
    }

    h2 {
        font-size: 2em;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 15px 0;
    }
    .logo {
        font-size: 1.5em;
    }
    .hero-section h2 {
        font-size: 2em;
    }
    .hero-section .tagline {
        font-size: 1em;
    }
    .profile-pic {
        width: 120px;
        height: 120px;
    }
    .button {
        padding: 10px 20px;
        font-size: 0.8em;
    }
}