/* --- GENEL AYARLAR --- */
:root {
    --bg: #020617;
    --card: #0f172a;
    --primary: #3b82f6;
    --accent: #22d3ee;
    --text: #f8fafc;
    --gray: #94a3b8;
    --glass: rgba(255, 255, 255, 0.05);
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Plus Jakarta Sans', sans-serif; }
body { background: var(--bg); color: var(--text); line-height: 1.7; overflow-x: hidden; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* --- NAVIGASYON --- */
.navbar {
    position: fixed; top: 0; width: 100%; z-index: 1000;
    background: rgba(2, 6, 23, 0.9); backdrop-filter: blur(10px);
    padding: 20px 0; border-bottom: 1px solid var(--glass);
}
.nav-container { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 24px; font-weight: 800; text-decoration: none; color: #fff; }
.logo span { color: var(--primary); }
.nav-links { display: flex; list-style: none; gap: 30px; }
.nav-links a { color: var(--text); text-decoration: none; font-weight: 600; transition: 0.3s; }
.nav-links a:hover, .nav-links a.active { color: var(--accent); }
.nav-btn { background: var(--primary); padding: 10px 20px; border-radius: 8px; }

/* --- HERO & BAŞLIKLAR --- */
.hero-section { padding: 160px 0 80px; text-align: center; background: radial-gradient(circle at top, #1e293b 0%, #020617 100%); }
.hero-section h1 { font-size: clamp(2rem, 5vw, 4rem); margin-bottom: 20px; }
.gradient-text { background: linear-gradient(45deg, var(--primary), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

/* --- İÇERİK YAPISI --- */
.section-padding { padding: 80px 0; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 40px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }

.card { background: var(--card); padding: 40px; border-radius: 20px; border: 1px solid var(--glass); transition: 0.3s; }
.card:hover { transform: translateY(-10px); border-color: var(--primary); }
.card i { font-size: 40px; color: var(--accent); margin-bottom: 20px; display: block; }

/* --- FOOTER --- */
footer { background: #010409; padding: 60px 0 20px; border-top: 1px solid var(--glass); margin-top: 80px; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 40px; margin-bottom: 40px; }
.footer-bottom { text-align: center; padding-top: 30px; border-top: 1px solid var(--glass); color: var(--gray); font-size: 14px; }

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
    .nav-links { display: none; } /* Mobil menü simgesi eklenebilir */
    .hero-section { padding-top: 120px; }
}