/* Configuration de base */
body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-main);
    margin: 0; padding: 0; line-height: 1.6;
}

/* Liens par défaut */
a { text-decoration: none; color: inherit; transition: 0.3s; }

/* --- HEADER --- */
header {
    background: rgba(10, 11, 16, 0.95);
    padding: 20px 50px;
    border-bottom: 1px solid var(--border);
    display: flex; justify-content: space-between; align-items: center;
    position: sticky; top: 0; z-index: 100;
}
.logo { font-family: var(--font-tech); color: var(--accent); font-weight: bold; font-size: 1.5rem; }
nav a { color: var(--text-main); margin-left: 20px; font-weight: 500; }
nav a:hover { color: var(--accent); text-shadow: 0 0 8px var(--accent); }

/* --- CONTENEUR --- */
.container { max-width: 1200px; margin: 0 auto; padding: 40px 20px; }

/* --- TYPOGRAPHIE --- */
h1, h2, h3 { font-family: var(--font-tech); }
h1 {
    font-size: 2.5rem;
    background: linear-gradient(to right, var(--accent), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
h2 { border-bottom: 1px solid var(--border); padding-bottom: 10px; margin-top: 40px; color: var(--accent); }

/* --- CARTES (UEs) --- */
.grid-ue { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.card {
    background: var(--bg-card); border: 1px solid var(--border);
    padding: 25px; border-radius: 8px; display: block;
    transition: transform 0.3s, border-color 0.3s;
}
.card:hover { transform: translateY(-5px); border-color: var(--accent); }
.card h3 { color: var(--accent); margin-top: 0; }
.card p { color: var(--text-muted); }

/* --- TIMELINE (Parcours) --- */
.timeline { border-left: 2px solid var(--secondary); padding-left: 20px; margin: 20px 0; }
.timeline-item { margin-bottom: 20px; position: relative; }
.timeline-item::before { content: ''; position: absolute; left: -26px; top: 6px; width: 10px; height: 10px; background: var(--secondary); border-radius: 50%; }

/* --- SKILLS (Compétences) --- */
.skills-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 30px 0; }
.skill-box { background: rgba(255,255,255,0.03); padding: 15px; border-radius: 5px; }
.skill-box h4 { color: var(--secondary); margin-top: 0; }
ul { padding-left: 20px; }

/* --- BOUTONS --- */
.btn-github {
    display: inline-block; background: var(--secondary); color: white;
    padding: 10px 20px; border-radius: 5px; font-weight: bold; margin-top: 20px;
}
.btn-github:hover { background: var(--accent); color: black; }