:root {
    --bg-dark: #121212;
    --bg-gray: #1e1e1e;
    --bg-light-gray: #2c2c2c;
    --text-main: #f5f5f5;
    --text-muted: #a0a0a0;
    --border-color: #333333;
    --ig-gradient: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
    --shadow: 0 8px 30px rgba(0,0,0,0.5);
}
* { margin: 0; padding: 0; box-sizing: border-box; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
body { background: var(--bg-dark); color: var(--text-main); line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; transition: color 0.2s; }

/* Navigation */
.nav { background: rgba(18, 18, 18, 0.85); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border-color); position: sticky; top: 0; z-index: 100; display: flex; justify-content: space-between; align-items: center; padding: 15px 5%; height: 70px; }
.nav-brand { font-size: 28px; font-weight: 800; background: var(--ig-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; letter-spacing: -1px; }
.nav-links { display: flex; gap: 30px; align-items: center; }
.nav-links a { font-size: 15px; font-weight: 500; color: var(--text-muted); }
.nav-links a:hover, .nav-links a.active { color: var(--text-main); }
.nav-btn { background: var(--text-main); color: var(--bg-dark) !important; padding: 8px 20px; border-radius: 20px; font-weight: 600; }
.nav-btn:hover { background: #d0d0d0; }

/* Hero */
.hero { text-align: center; padding: 100px 20px 80px; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -50%; left: 50%; transform: translateX(-50%); width: 800px; height: 800px; background: radial-gradient(circle, rgba(220,39,67,0.15) 0%, rgba(18,18,18,0) 70%); z-index: -1; }
.hero-title { font-size: 52px; font-weight: 800; margin-bottom: 20px; line-height: 1.2; }
.hero-title span { background: var(--ig-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-sub { font-size: 18px; color: var(--text-muted); max-width: 600px; margin: 0 auto 40px; }
.btn-group { display: flex; justify-content: center; gap: 20px; }
.btn { padding: 14px 32px; border-radius: 30px; font-size: 16px; font-weight: 600; cursor: pointer; transition: 0.3s; border: none; }
.btn-primary { background: var(--ig-gradient); color: white; box-shadow: 0 4px 15px rgba(220,39,67,0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(220,39,67,0.5); }
.btn-secondary { background: var(--bg-light-gray); color: var(--text-main); border: 1px solid var(--border-color); }
.btn-secondary:hover { background: #3a3a3a; }

/* Stats */
.stats { display: flex; justify-content: center; gap: 60px; padding: 40px 20px; border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); background: var(--bg-gray); flex-wrap: wrap; }
.stat-box { text-align: center; }
.stat-box h3 { font-size: 28px; font-weight: 700; color: var(--text-main); margin-bottom: 5px; }
.stat-box p { font-size: 14px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }

/* Container */
.container { max-width: 1200px; margin: 0 auto; padding: 80px 20px; }
.section-title { font-size: 32px; font-weight: 700; text-align: center; margin-bottom: 50px; }

/* Text Content */
.seo-text { background: var(--bg-gray); padding: 50px; border-radius: 16px; border: 1px solid var(--border-color); margin-bottom: 80px; text-align: center; }
.seo-text p { font-size: 16px; color: var(--text-muted); margin-bottom: 20px; }
.seo-text p:last-child { margin-bottom: 0; }

/* Grid Cards */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; margin-bottom: 80px; }
.card { background: var(--bg-gray); border: 1px solid var(--border-color); border-radius: 16px; padding: 35px; transition: 0.3s; position: relative; overflow: hidden; }
.card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px; background: var(--ig-gradient); opacity: 0; transition: 0.3s; }
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: #444; }
.card:hover::before { opacity: 1; }
.card h3 { font-size: 20px; font-weight: 600; margin-bottom: 15px; color: var(--text-main); }
.card p { font-size: 15px; color: var(--text-muted); }

/* Images */
.img-center { display: block; max-width: 100%; margin: 0 auto 60px; border-radius: 16px; border: 1px solid var(--border-color); box-shadow: var(--shadow); }

/* Guide & FAQ */
.list-container { max-width: 800px; margin: 0 auto 80px; }
.list-item { background: var(--bg-gray); border: 1px solid var(--border-color); border-radius: 12px; padding: 25px; margin-bottom: 20px; display: flex; gap: 20px; align-items: flex-start; }
.list-icon { width: 32px; height: 32px; background: var(--bg-light-gray); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; color: #dc2743; }
.list-content h3 { font-size: 18px; font-weight: 600; margin-bottom: 10px; }
.list-content p { font-size: 15px; color: var(--text-muted); }

/* Footer */
.footer { background: var(--bg-gray); padding: 60px 20px; text-align: center; border-top: 1px solid var(--border-color); }
.footer-logo { font-size: 24px; font-weight: 800; background: var(--ig-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 20px; display: inline-block; }
.footer-links { display: flex; justify-content: center; gap: 30px; margin-bottom: 30px; flex-wrap: wrap; }
.footer-links a { color: var(--text-muted); font-size: 14px; }
.footer-links a:hover { color: var(--text-main); }
.footer p { color: #666; font-size: 12px; }