:root {
    --bg-color: #0a0a0a;
    --card-bg: #111;
    --text-main: #c0c0c0;
    --neon-green: #00ff41;
    --neon-dim: #008F11;
    --border-color: #333;
    --font-mono: 'Courier New', Courier, monospace;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-mono);
}

/* --- NAV --- */
.cyber-nav {
    display: flex;
    justify-content: space-between;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    background: #000;
}

.nav-link {
    color: var(--neon-green);
    text-decoration: none;
    font-weight: bold;
}
.nav-link:hover { text-shadow: 0 0 5px var(--neon-green); }

/* --- CONTROLS --- */
.control-panel {
    margin: 30px 0;
    padding: 20px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
}

.cyber-btn {
    background: transparent;
    border: 1px solid var(--neon-dim);
    color: var(--neon-dim);
    padding: 5px 15px;
    cursor: pointer;
    font-family: var(--font-mono);
    margin-right: 5px;
}
.cyber-btn:hover, .cyber-btn.active {
    background: var(--neon-dim);
    color: #000;
}

/* --- GRID --- */
.cyber-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.cyber-card {
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    padding: 15px;
    transition: transform 0.2s, border-color 0.2s;
    cursor: pointer;
    position: relative;
}

.cyber-card:hover {
    border-color: var(--neon-green);
    transform: translateY(-2px);
}

.cyber-card::before {
    /* Petit effet "coin technique" */
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 0; height: 0;
    border-style: solid;
    border-width: 0 20px 20px 0;
    border-color: transparent var(--border-color) transparent transparent;
}

.card-title {
    font-size: 1.2em;
    color: #fff;
    margin-bottom: 10px;
}

.card-meta {
    font-size: 0.8em;
    color: #666;
    display: flex;
    justify-content: space-between;
}

.difficulty-badge {
    padding: 2px 6px;
    border: 1px solid #444;
}
.difficulty-badge.Easy { color: #2ecc71; border-color: #2ecc71; }
.difficulty-badge.Medium { color: #f1c40f; border-color: #f1c40f; }
.difficulty-badge.Hard { color: #e74c3c; border-color: #e74c3c; }

/* --- ARTICLE MODE --- */
.article-container { max-width: 900px; margin: 0 auto; padding: 40px 20px; }
.article-header { border-bottom: 1px dashed var(--border-color); margin-bottom: 30px; padding-bottom: 20px; }
.glitch-header { font-size: 2.5em; color: #fff; text-transform: uppercase; }

.cyber-content img {
    max-width: 100%;
    border: 1px solid var(--border-color);
    margin: 20px 0;
}
.cyber-content h1, .cyber-content h2 { color: var(--neon-green); margin-top: 30px; }
.cyber-content code { background: #222; color: #ddd; padding: 2px 5px; }
.cyber-content pre { background: #151515; padding: 15px; overflow-x: auto; border-left: 3px solid var(--neon-dim); }

/* --- SEARCH BAR & SORT SELECT (CORRIGÉ) --- */
.control-group {
    display: flex;
    align-items: center;
    margin-bottom: 15px; /* Espacement entre les lignes */
}

.prompt {
    color: var(--text-main);
    font-weight: bold;
    margin-right: 10px;
}

.cyber-input, .cyber-select {
    background-color: #111111 !important; /* Force le fond noir/gris très foncé */
    color: #00ff41 !important; /* Force le vert fluo */
    border: 1px solid #333333 !important; /* Force la bordure sombre */
    padding: 8px 12px;
    font-family: 'Courier New', Courier, monospace !important;
    font-size: 1rem;
    outline: none;
    
    /* Force la suppression du style blanc de base de Google Chrome / Safari */
    -webkit-appearance: none !important;
    -moz-appearance: none !important;
    appearance: none !important;
    
    width: 300px;
    max-width: 100%;
}

.cyber-select option {
    background-color: #111111 !important;
    color: #00ff41 !important;
}