:root {
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --primary-cyan: #06b6d4;
    --primary-hover: #0891b2;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', sans-serif; }
body { background-color: var(--bg-dark); color: var(--text-main); line-height: 1.6; }
a { text-decoration: none; color: inherit; }
.text-white { color: white; }
.highlight { color: var(--primary-cyan); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Navbar */
.navbar { padding: 20px 0; border-bottom: 1px solid rgba(255,255,255,0.05); background: rgba(15, 23, 42, 0.9); position: sticky; top: 0; backdrop-filter: blur(10px); z-index: 100; }
.nav-container { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 24px; font-weight: 800; }
.cng { color: var(--primary-cyan); }
.nav-links { display: flex; gap: 20px; align-items: center; }
.nav-links a { font-weight: 600; font-size: 14px; transition: color 0.2s; }
.nav-links a:hover { color: var(--primary-cyan); }

/* Buttons */
.btn-primary { background: var(--primary-cyan); color: #000; padding: 10px 20px; border-radius: 8px; font-weight: 600; transition: background 0.2s; }
.btn-primary:hover { background: var(--primary-hover); color: #fff; }
.btn-outline { border: 1px solid var(--primary-cyan); color: var(--primary-cyan) !important; padding: 10px 20px; border-radius: 8px; font-weight: 600; transition: all 0.2s; }
.btn-outline:hover { background: var(--primary-cyan); color: #000 !important; }
.btn-large { padding: 15px 30px; font-size: 16px; }

/* Hero */
.hero { padding: 100px 0; text-align: center; }
.hero h1 { font-size: 3.5rem; margin-bottom: 20px; line-height: 1.2; }
.hero p { font-size: 1.2rem; color: var(--text-muted); max-width: 600px; margin: 0 auto 40px; }
.hero-buttons { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; }

/* Features */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; padding: 60px 20px; }
.feature-card { background: var(--bg-card); padding: 40px 30px; border-radius: 16px; text-align: center; border: 1px solid rgba(255,255,255,0.05); transition: transform 0.3s; }
.feature-card:hover { transform: translateY(-5px); }
.feature-icon { font-size: 40px; color: var(--primary-cyan); margin-bottom: 20px; }
.feature-card h3 { margin-bottom: 15px; font-size: 1.5rem; }
.feature-card p { color: var(--text-muted); font-size: 0.95rem; }

/* How it Works */
.how-it-works { background: var(--bg-card); padding: 80px 0; text-align: center; margin-top: 40px; }
.how-it-works h2 { font-size: 2.5rem; margin-bottom: 50px; }
.steps { display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; }
.step { max-width: 250px; }
.step-number { width: 50px; height: 50px; background: var(--primary-cyan); color: #000; font-size: 24px; font-weight: 800; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; }
.step h4 { margin-bottom: 10px; font-size: 1.2rem; }
.step p { color: var(--text-muted); font-size: 0.9rem; }

/* Footer */
footer { border-top: 1px solid rgba(255,255,255,0.05); padding: 60px 0 20px; margin-top: 40px; }
.footer-content { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 30px; margin-bottom: 40px; }
.footer-links { display: flex; gap: 20px; }
.footer-links a { color: var(--text-muted); font-size: 0.9rem; }
.footer-links a:hover { color: var(--primary-cyan); }
.footer-bottom { text-align: center; color: var(--text-muted); font-size: 0.8rem; border-top: 1px solid rgba(255,255,255,0.05); padding-top: 20px; }

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .nav-links { display: none; /* simple mobile nav hide for now */ }
    .hero-buttons { flex-direction: column; }
}