:root {
    --primary-blue: #0070F3; /* Bleu électrique moderne */
    --dark-bg: #0d1117;       /* Noir profond style GitHub/LDLC */
    --card-bg: #161b22;       /* Gris foncé pour les cartes */
    --text-main: #f0f6fc;     /* Blanc cassé pour le texte */
    --text-muted: #8b949e;    /* Gris clair pour les descriptions */
    --border-color: #30363d;  /* Bordures subtiles */
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Roboto', sans-serif; }
body { background-color: var(--dark-bg); color: var(--text-main); line-height: 1.6; }
a { text-decoration: none; transition: 0.3s; }
ul { list-style: none; }

/* UTILS */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.text-blue { color: var(--primary-blue); }

/* --- NAVBAR --- */
.navbar { background: rgba(13, 17, 23, 0.95); border-bottom: 1px solid var(--border-color); padding: 20px 0; position: sticky; top: 0; z-index: 100; backdrop-filter: blur(10px); }
.nav-container { display: flex; justify-content: space-between; align-items: center; }
.brand { font-size: 1.5rem; font-weight: 900; letter-spacing: 1px; }
.brand-highlight { color: var(--primary-blue); }

.nav-links a { color: var(--text-main); margin: 0 15px; font-weight: 500; font-size: 0.95rem; }
.nav-links a:hover { color: var(--primary-blue); }

.btn-nav { background: var(--primary-blue); color: white; padding: 10px 20px; border-radius: 6px; font-weight: bold; font-size: 0.9rem; }
.btn-nav:hover { background: #005bb5; }

/* --- HERO BANNER --- */
.hero { padding: 100px 0; background: radial-gradient(circle at top right, #1f293a 0%, var(--dark-bg) 70%); text-align: center; }
.hero-badge { display: inline-block; background: rgba(0, 112, 243, 0.15); color: var(--primary-blue); padding: 6px 16px; border-radius: 50px; font-size: 0.8rem; font-weight: bold; margin-bottom: 20px; border: 1px solid rgba(0, 112, 243, 0.3); }
h1 { font-size: 3.5rem; line-height: 1.2; font-weight: 900; margin-bottom: 20px; }
.hero-subtitle { color: var(--text-muted); font-size: 1.2rem; max-width: 700px; margin: 0 auto 40px auto; }
.hero-actions { display: flex; justify-content: center; gap: 15px; margin-bottom: 40px; }

.btn-primary { background: var(--primary-blue); color: white; padding: 14px 28px; border-radius: 6px; font-weight: bold; font-size: 1rem; border: 2px solid var(--primary-blue); }
.btn-primary:hover { background: transparent; color: var(--primary-blue); }
.btn-secondary { background: transparent; color: white; padding: 14px 28px; border-radius: 6px; font-weight: bold; font-size: 1rem; border: 2px solid var(--border-color); }
.btn-secondary:hover { border-color: white; }

.hero-trust { display: flex; justify-content: center; gap: 30px; color: var(--text-muted); font-size: 0.9rem; }
.hero-trust i { color: var(--primary-blue); margin-right: 8px; }

/* --- SERVICES (CARDS) --- */
.section-dark { padding: 80px 0; background: var(--dark-bg); }
.section-header { text-align: center; margin-bottom: 60px; }
.section-header h2 { font-size: 2.5rem; font-weight: 800; margin-bottom: 10px; }
.section-header p { color: var(--text-muted); font-size: 1.1rem; }

.cards-wrapper { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; }

.service-card { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px; padding: 30px; display: flex; flex-direction: column; transition: transform 0.3s, border-color 0.3s; position: relative; }
.service-card:hover { transform: translateY(-5px); border-color: var(--primary-blue); box-shadow: 0 10px 40px rgba(0,0,0,0.3); }

.card-icon-box { width: 60px; height: 60px; background: #21262d; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: var(--text-main); margin-bottom: 20px; }
.card-icon-box.blue-box { background: var(--primary-blue); color: white; }

.service-card h3 { font-size: 1.5rem; font-weight: 700; margin-bottom: 10px; }
.card-desc { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 20px; min-height: 60px; }

.card-features li { margin-bottom: 12px; font-size: 0.95rem; color: #d0d7de; display: flex; align-items: start; }
.card-features i { color: var(--primary-blue); margin-right: 12px; margin-top: 4px; }

.card-pricing { margin-top: auto; padding-top: 20px; border-top: 1px solid var(--border-color); display: flex; flex-direction: column; }
.price { font-size: 2rem; font-weight: 800; color: white; }
.price-detail { font-size: 0.85rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.card-note { margin-top: 10px; font-size: 0.8rem; color: var(--text-muted); font-style: italic; }

/* Featured Card */
.service-card.featured { border: 2px solid var(--primary-blue); background: linear-gradient(180deg, #131820 0%, #0d1117 100%); }
.featured-badge { position: absolute; top: 15px; right: 15px; background: var(--primary-blue); color: white; padding: 4px 12px; border-radius: 4px; font-size: 0.75rem; font-weight: bold; }

/* --- ENGAGEMENTS (ICONS) --- */
.section-features { padding: 60px 0; border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); background: #11151c; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 40px; text-align: center; }
.feature-item i { font-size: 2.5rem; color: var(--primary-blue); margin-bottom: 20px; }
.feature-item h4 { font-size: 1.2rem; margin-bottom: 10px; }
.feature-item p { color: var(--text-muted); font-size: 0.95rem; }

/* --- SSD SECTION --- */
.section-ssd { padding: 100px 0; background: var(--dark-bg); }
.ssd-wrapper { display: flex; align-items: center; gap: 60px; flex-wrap: wrap; }
.ssd-visual { flex: 1; text-align: center; position: relative; min-width: 300px; }
.icon-ssd { font-size: 12rem; color: #21262d; text-shadow: 0 0 30px rgba(0,0,0,0.5); }
.ssd-float-badge { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%) rotate(-10deg); background: var(--primary-blue); color: white; padding: 10px 20px; font-weight: 900; font-size: 1.2rem; border: 4px solid var(--dark-bg); }

.ssd-text { flex: 1.5; }
.ssd-text h2 { font-size: 2.5rem; margin-bottom: 20px; font-weight: 800; }
.ssd-text .lead { font-size: 1.2rem; color: white; margin-bottom: 20px; }
.ssd-text p { color: var(--text-muted); margin-bottom: 30px; }

.ssd-price-box { background: var(--card-bg); padding: 30px; border-radius: 12px; border: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.price-col { display: flex; flex-direction: column; }
.price-col .label { font-size: 0.8rem; text-transform: uppercase; color: var(--text-muted); }
.price-col .amount { font-size: 2.5rem; font-weight: 900; color: white; }
.price-col .detail { font-size: 0.8rem; color: var(--text-muted); max-width: 250px; }

/* --- FOOTER --- */
.footer-section { background: #090c10; padding: 60px 0 20px 0; border-top: 1px solid var(--border-color); }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 40px; margin-bottom: 60px; }
.footer-col h4 { font-size: 1.1rem; color: white; margin-bottom: 20px; text-transform: uppercase; letter-spacing: 1px; }
.footer-col p { color: var(--text-muted); margin-bottom: 10px; font-size: 0.95rem; }
.footer-col i { width: 20px; color: var(--primary-blue); }

.footer-bottom { text-align: center; padding-top: 20px; border-top: 1px solid var(--border-color); color: var(--text-muted); font-size: 0.9rem; }
.footer-bottom a { color: var(--text-muted); text-decoration: underline; }

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
    .nav-links { display: none; }
    h1 { font-size: 2.5rem; }
    .hero-trust { flex-direction: column; gap: 10px; }
    .hero-actions { flex-direction: column; }
    .ssd-price-box { flex-direction: column; text-align: center; }
}

/* Modal */
.modal { display: none; position: fixed; z-index: 1000; left: 0; top: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.8); backdrop-filter: blur(5px); }
.modal-content { background: var(--card-bg); margin: 15% auto; padding: 40px; border: 1px solid var(--border-color); width: 90%; max-width: 600px; color: white; position: relative; border-radius: 12px; }
.close-btn { position: absolute; top: 15px; right: 20px; cursor: pointer; font-size: 1.5rem; color: var(--text-muted); }