/* --- RESET & VARIABLES --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

:root {
    --bg-color: #ffffff;
    --card-bg: #ffffff;
    --text-color: #000000;
    --primary-color: #000000;
    --secondary-color: #333333;
    --accent-color: #000000;
    --border-color: #000000; /* Bordures noires franches */
    --shadow: none; /* Pas d'ombres, style plat et net */
}

/* --- MODE SOMBRE : VRAI NOIR PUR --- */
[data-theme="dark"] {
    --bg-color: #000000;         /* Vrai noir pur (ou #050505) */
    --card-bg: #111111;         /* Gris très sombre pour les cartes pour contraster légèrement */
    --text-color: #f1f5f9;       /* Texte blanc cassé très lisible */
    --primary-color: #ffffff;    /* Titres en blanc pur */
    --secondary-color: #94a3b8;  /* Gris neutre pour les sous-titres */
    --accent-color: #ffffff;     
    --border-color: #222222;     /* Bordures très discrètes et sombres */
    --shadow: none;              /* Style plat et net */
}

/* --- BASES & TYPOGRAPHIE --- */
html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    padding: 0;
}

img, video, iframe, embed {
    max-width: 100%;
}

h1, h2, h3, h4 {
    color: var(--primary-color);
    margin-bottom: 0.8rem;
    font-weight: 800; /* Titres bien gras comme sur votre modèle */
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw + 0.5rem, 3rem); line-height: 1.1; text-transform: uppercase; }
h2 { font-size: clamp(1.4rem, 3vw + 0.5rem, 1.8rem); line-height: 1.2; border-bottom: 2px solid var(--primary-color); padding-bottom: 0.4rem; margin-bottom: 1.5rem; text-transform: uppercase; }

a {
    color: var(--primary-color);
    text-decoration: none;
}

a:hover {
    opacity: 0.7;
}

/* --- CONTENEURS & CARTES (Style Encadré Net) --- */
.container {
    max-width: 1100px;
    margin: 2rem auto;
    padding: 0 1.5rem;
}

.card {
    background: var(--card-bg);
    border: 2px solid var(--border-color); /* Encadré net style CV/Dossier */
    border-radius: 0px; /* Coins droits pour un look plus technique/éditorial */
    padding: 2.5rem;
    box-shadow: var(--shadow);
    margin-bottom: 2.5rem;
}

/* --- GRILLES & PROJETS --- */
.projects-grid {
    justify-content:flex-start ;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.project-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 0px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    box-shadow: var(--shadow);
}

.project-media img {
    width: 100%;
    height: 180px;
    border-radius: 0px;
    object-fit: cover;
    border: 1px solid var(--border-color);
}

.project-content {
    background-color: transparent;
    padding: 0.5rem 0;
    font-size: 0.95rem;
    max-height: 150px;
    overflow-y: auto;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    margin: 0.8rem 0;
}

/* --- FORMULAIRES --- */
.admin-form {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    margin-top: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.form-group label {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-control {
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 0px;
    font-size: 1rem;
    width: 100%;
    background-color: var(--card-bg);
    color: var(--text-color);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    background-color: rgba(0, 0, 0, 0.02);
}

textarea.form-control {
    resize: vertical;
}

/* --- BOUTONS STYLE ARTICLE (Texte souligné minimaliste) --- */
.btn-primary, .link-btn {
    background: transparent !important;
    color: var(--primary-color) !important;
    padding: 0 !important;
    border: none !important;
    border-radius: 0 !important;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    text-align: left;
    display: inline-block;
    text-decoration: underline;
    text-underline-offset: 4px;
    transition: opacity 0.2s;
    box-shadow: none !important;
}

.btn-primary:hover, .link-btn:hover {
    opacity: 0.5;
    text-decoration: underline;
}

.btn-delete {
    background: transparent;
    color: #ef4444;
    padding: 0;
    border: none;
    cursor: pointer;
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 4px;
}

.btn-delete:hover {
    opacity: 0.7;
}

.btn-download {
    display: inline-block;
    padding: 0;
    background: transparent;
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 4px;
    border: none;
}

.btn-download:hover {
    opacity: 0.5;
}

/* --- ALERTES --- */
.alert {
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 0px;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.alert-success {
    background-color: #f0fdf4;
    color: #166534;
    border-color: #166534;
}

.alert-danger {
    background-color: #fef2f2;
    color: #991b1b;
    border-color: #991b1b;
}

/* --- NAVIGATION BAR --- */
section[id] {
    scroll-margin-top: 5rem;
}

.navbar {
    position: sticky;
    top: 0;
    background-color: var(--card-bg);
    border-bottom: 2px solid var(--border-color);
    box-shadow: none;
    z-index: 1000;
    padding: 1rem 0;
    width: 100%;
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-weight: 800;
    font-size: 1.2rem;
    color: var(--primary-color);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    align-items: center;
    margin: 0;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.nav-links a:hover {
    text-decoration: underline;
    text-underline-offset: 4px;
}

.navbar .theme-toggle {
    position: static;
    background: transparent;
    color: var(--text-color);
    border: 2px solid var(--border-color);
    padding: 0.4rem 0.8rem;
    border-radius: 0px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    white-space: nowrap;
}

.navbar .theme-toggle:hover {
    background-color: var(--primary-color);
    color: var(--bg-color);
}

/* --- BOUTON HAMBURGER --- */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 0 8px;
    background: transparent;
    border: 2px solid var(--border-color);
    border-radius: 0px;
    cursor: pointer;
}

.nav-toggle-bar {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-color);
    border-radius: 0px;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --- FOOTER --- */
.site-footer {
    background-color: var(--card-bg);
    border-top: 2px solid var(--border-color);
    padding: 3rem 0 1.5rem 0;
    margin-top: 4rem;
    color: var(--text-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 1.5rem;
}

.footer-col h3, .footer-col h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.5rem;
}

.footer-col a, .project-card h3, .project-card p {
    overflow-wrap: anywhere;
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.85rem;
    color: var(--secondary-color);
    max-width: 1100px;
    margin: 0 auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

/* --- MEDIA QUERIES (MOBILE) --- */
@media (max-width: 768px) {
    .navbar { padding: 0.5rem 0; }
    .nav-container { padding: 0 1rem; }
    .nav-toggle { display: flex; }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 0.5rem 1rem 1rem;
        background-color: var(--card-bg);
        border-bottom: 2px solid var(--border-color);
        box-shadow: none;
        max-height: calc(100vh - 4rem);
        overflow-y: auto;
        visibility: hidden;
        opacity: 0;
        transform: translateY(-8px);
        pointer-events: none;
        transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    }

    .nav-links.open {
        visibility: visible;
        opacity: 1;
        transform: none;
        pointer-events: auto;
    }

    .nav-links li { width: 100%; }

    .nav-links a {
        display: block;
        padding: 0.75rem 0.25rem;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-links li:last-child { padding-top: 0.75rem; }

    .navbar .theme-toggle {
        width: 100%;
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }

    .container { margin: 1rem auto; padding: 0 1rem; }
    .card { padding: 1.25rem; margin-bottom: 1.25rem; }
    .project-card { padding: 1.1rem; }
}

@media (max-width: 480px) {
    .container { padding: 0 0.75rem; }
    .card { padding: 1rem; }
    .projects-grid { gap: 1rem; }
    .nav-logo { font-size: 1rem; }
}

.contact-form {
    max-width: 560px;
}