*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
    --bg: #080C12;
    --bg-card: #161E28;
    --bg-elevated: #1E2A36;
    --border: #1E2A36;
    --text: #F0F2F5;
    --text-secondary: #A0B0C0;
    --text-muted: #8494A7;
    --accent: #34D399;
    --accent-hover: #2BA87A;
    --market-500: #34D399;
    --market-400: #4AE8AD;
    --green: #22c55e;
    --blue: #3b82f6;
    --amber: #E8B04A;
    --purple: #A855F7;
}
html { scroll-behavior: smooth; }
body { font-family: 'DM Sans', sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; overflow-x: hidden; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ── NAV ── */
.cs-nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 10px 0; transition: background 0.3s, backdrop-filter 0.3s; }
.cs-nav.scrolled { background: rgba(8,12,18,0.92); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); }
.cs-nav .container { display: flex; align-items: center; justify-content: space-between; }
.cs-nav-brand { font-size: 1.2rem; font-weight: 800; color: var(--text); text-decoration: none; display: flex; align-items: center; gap: 8px; }
.cs-nav-brand .swap { color: var(--market-400); }
.cs-nav-brand .ai { color: var(--market-400); font-size: 0.42em; font-weight: 700; position: relative; top: 0.05em; margin-left: 0.12em; letter-spacing: 0; }
.cs-nav-links { display: flex; align-items: center; gap: 28px; }
.cs-nav-links a { color: var(--text-secondary); text-decoration: none; font-size: 0.88rem; font-weight: 500; transition: color 0.2s; }
.cs-nav-links a:hover { color: var(--text); }
.cs-nav-links a.active { color: var(--text); }
.cs-nav-links .cs-nav-cta { background: var(--accent); color: #0E1117 !important; padding: 8px 20px; border-radius: 8px; font-weight: 700; font-size: 0.85rem; text-decoration: none; transition: background 0.2s; font-family: 'Plus Jakarta Sans', sans-serif; }
.cs-nav-links .cs-nav-cta:hover { background: var(--accent-hover); color: #0E1117 !important; }
.cs-mobile-toggle { display: none; background: none; border: none; color: var(--text); cursor: pointer; padding: 4px; }
@media (max-width: 900px) {
    .cs-nav-links { display: none; }
    .cs-mobile-toggle { display: block; }
    .cs-nav-links.open { display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: rgba(8,12,18,0.98); border-bottom: 1px solid var(--border); padding: 20px 24px; gap: 16px; }
}

/* ── HERO ── */
.cs-hero { padding: 160px 0 100px; position: relative; overflow: hidden; }
.cs-hero::before { content: ''; position: absolute; top: -200px; left: 50%; transform: translateX(-50%); width: 900px; height: 900px; background: radial-gradient(circle, rgba(52,211,153,0.12) 0%, transparent 70%); pointer-events: none; }
.cs-hero-inner { text-align: center; position: relative; z-index: 1; max-width: 800px; margin: 0 auto; }
.cs-hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(52,211,153,0.12); border: 1px solid rgba(52,211,153,0.25); border-radius: 20px; padding: 6px 16px; font-size: 0.78rem; font-weight: 600; color: var(--accent); margin-bottom: 24px; letter-spacing: 0.5px; }
.cs-hero-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); animation: pulse 2s ease infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.cs-hero h1 { font-size: 3.8rem; font-weight: 900; line-height: 1.1; letter-spacing: -0.03em; margin-bottom: 20px; }
.cs-hero h1 .gradient { color: var(--market-400); background: none; -webkit-text-fill-color: currentColor; }
.cs-hero p { font-size: 1.15rem; color: var(--text-secondary); max-width: 600px; margin: 0 auto 36px; line-height: 1.7; }
.cs-hero-ctas { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.cs-btn-primary { background: var(--accent); color: #0E1117; padding: 14px 32px; border-radius: 10px; font-weight: 700; font-size: 0.95rem; text-decoration: none; transition: all 0.2s; border: none; cursor: pointer; display: inline-flex; align-items: center; gap: 8px; font-family: 'Plus Jakarta Sans', sans-serif; }
.cs-btn-primary:hover { background: var(--accent-hover); color: #0E1117; transform: translateY(-1px); box-shadow: 0 8px 24px rgba(52,211,153,0.3); }
.cs-btn-secondary { background: transparent; color: var(--text); padding: 14px 32px; border-radius: 10px; font-weight: 600; font-size: 0.95rem; text-decoration: none; border: 1px solid var(--border); transition: all 0.2s; display: inline-flex; align-items: center; gap: 8px; }
.cs-btn-secondary:hover { background: var(--bg-card); border-color: var(--text-muted); }
@media (max-width: 768px) {
    .cs-hero { padding: 120px 0 60px; }
    .cs-hero h1 { font-size: 2.2rem; }
}

/* ── PROBLEMS ── */
.cs-problems { padding: 80px 0; }
.cs-problems-header { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.cs-problems-header h2 { font-size: 2rem; font-weight: 800; margin-bottom: 12px; }
.cs-problems-header p { color: var(--text-secondary); font-size: 1rem; }
.cs-problems-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 768px) { .cs-problems-grid { grid-template-columns: 1fr; } }
.cs-problem-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 28px; transition: border-color 0.3s; }
.cs-problem-card:hover { border-color: #ef444450; }
.cs-problem-icon { width: 40px; height: 40px; border-radius: 10px; background: rgba(239,68,68,0.1); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; color: #ef4444; }
.cs-problem-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.cs-problem-card p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; }

/* ── SOLUTION ── */
.cs-solution { padding: 80px 0; }
.cs-solution-header { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.cs-solution-header h2 { font-size: 2.2rem; font-weight: 800; margin-bottom: 12px; }
.cs-solution-header p { color: var(--text-secondary); font-size: 1rem; }
.cs-solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 768px) { .cs-solution-grid { grid-template-columns: 1fr; } }
.cs-solution-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 32px; text-align: center; transition: all 0.3s; }
.cs-solution-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.cs-solution-icon { width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; }
.cs-solution-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
.cs-solution-card p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; }

/* ── HOW IT WORKS ── */
.cs-how { padding: 80px 0; }
.cs-how-header { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.cs-how-header h2 { font-size: 2rem; font-weight: 800; margin-bottom: 12px; }
.cs-how-header p { color: var(--text-secondary); font-size: 1rem; }
.cs-how-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; position: relative; }
@media (max-width: 768px) { .cs-how-steps { grid-template-columns: 1fr; } }
.cs-how-step { text-align: center; position: relative; }
.cs-how-number { width: 48px; height: 48px; border-radius: 50%; background: var(--accent); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1.2rem; margin: 0 auto 20px; }
.cs-how-step h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.cs-how-step p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; max-width: 280px; margin: 0 auto; }
.cs-how-connector { display: none; }
@media (min-width: 769px) {
    .cs-how-connector { display: block; position: absolute; top: 24px; left: calc(33.33% + 24px); width: calc(33.33% - 48px); height: 2px; background: var(--border); }
    .cs-how-connector.second { left: calc(66.66% + 24px); }
}

/* ── FEATURES ── */
.cs-features { padding: 80px 0; }
.cs-features-header { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.cs-features-header h2 { font-size: 2rem; font-weight: 800; margin-bottom: 12px; }
.cs-features-header p { color: var(--text-secondary); font-size: 1rem; }
.cs-features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 900px) { .cs-features-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 500px) { .cs-features-grid { grid-template-columns: 1fr; } }
.cs-feature-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px; padding: 24px 20px; transition: all 0.3s; }
.cs-feature-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.cs-feature-icon { width: 36px; height: 36px; border-radius: 8px; display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.cs-feature-card h4 { font-size: 0.92rem; font-weight: 700; margin-bottom: 6px; }
.cs-feature-card p { font-size: 0.8rem; color: var(--text-muted); line-height: 1.5; }

/* ── COMPARISON ── */
.cs-comparison { padding: 80px 0; }
.cs-comparison-header { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.cs-comparison-header h2 { font-size: 2rem; font-weight: 800; margin-bottom: 12px; }
.cs-comparison-header p { color: var(--text-secondary); font-size: 1rem; }
.cs-comparison-table { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; }
.cs-comparison-table table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.cs-comparison-table th { text-align: left; padding: 14px 16px; font-weight: 700; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-muted); border-bottom: 1px solid var(--border); }
.cs-comparison-table th:first-child { color: var(--text); }
.cs-comparison-table th.highlight { color: var(--accent); background: rgba(52,211,153,0.06); }
.cs-comparison-table td { padding: 12px 16px; border-bottom: 1px solid #1A2230; color: var(--text-secondary); font-size: 0.82rem; }
.cs-comparison-table td.highlight { background: rgba(52,211,153,0.04); }
.cs-comparison-table tr:last-child td { border-bottom: none; }
.cs-comparison-table .check { color: var(--green); font-weight: 700; }
.cs-comparison-table .cross { color: var(--text-muted); }
.cs-comparison-table .partial { color: var(--amber); }
@media (max-width: 768px) { .cs-comparison-table { overflow-x: auto; } .cs-comparison-table table { min-width: 900px; } }

/* ── PRICING ── */
.cs-pricing { padding: 80px 0; }
.cs-pricing-header { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.cs-pricing-header h2 { font-size: 2rem; font-weight: 800; margin-bottom: 12px; }
.cs-pricing-header p { color: var(--text-secondary); font-size: 1rem; }
.cs-pricing-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; max-width: 700px; margin: 0 auto; }
@media (max-width: 600px) { .cs-pricing-grid { grid-template-columns: 1fr; } }
.cs-price-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 32px 28px; position: relative; }
.cs-price-card.featured { border-color: var(--accent); }
.cs-price-card.featured::before { content: 'BEST FOR SELLERS'; position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--accent); color: #fff; font-size: 0.68rem; font-weight: 700; letter-spacing: 1px; padding: 4px 14px; border-radius: 20px; white-space: nowrap; }
.cs-price-card h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 4px; }
.cs-price-card .price { font-size: 2.4rem; font-weight: 900; margin: 16px 0 4px; }
.cs-price-card .price span { font-size: 0.9rem; font-weight: 400; color: var(--text-muted); }
.cs-price-card .price-note { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 24px; }
.cs-price-features { list-style: none; display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px; }
.cs-price-features li { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--text-secondary); }
.cs-price-features li svg { flex-shrink: 0; color: var(--green); }

/* ── TESTIMONIALS ── */
.cs-testimonials { padding: 80px 0; }
.cs-testimonials-header { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.cs-testimonials-header h2 { font-size: 2rem; font-weight: 800; margin-bottom: 12px; }
.cs-testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 768px) { .cs-testimonials-grid { grid-template-columns: 1fr; } }
.cs-testimonial { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 28px; }
.cs-testimonial-stars { color: var(--amber); font-size: 0.9rem; margin-bottom: 12px; }
.cs-testimonial p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 16px; font-style: italic; }
.cs-testimonial-author { display: flex; align-items: center; gap: 10px; }
.cs-testimonial-avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--bg-elevated); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.8rem; color: var(--accent); }
.cs-testimonial-name { font-weight: 600; font-size: 0.85rem; }
.cs-testimonial-role { font-size: 0.75rem; color: var(--text-muted); }

/* ── CTA ── */
.cs-cta { padding: 100px 0; text-align: center; position: relative; }
.cs-cta::before { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 800px; height: 400px; background: radial-gradient(ellipse, rgba(52,211,153,0.1) 0%, transparent 70%); pointer-events: none; }
.cs-cta h2 { font-size: 2.4rem; font-weight: 900; margin-bottom: 16px; position: relative; }
.cs-cta p { color: var(--text-secondary); font-size: 1.05rem; max-width: 560px; margin: 0 auto 32px; position: relative; }

/* ── FOOTER ── */
.cs-footer { padding: 60px 0 30px; border-top: 1px solid var(--border); }
.cs-footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
@media (max-width: 768px) { .cs-footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; } }
.cs-footer-brand p { color: var(--text-muted); font-size: 0.85rem; margin-top: 12px; line-height: 1.6; }
.cs-footer-col h5 { font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--text-muted); margin-bottom: 16px; }
.cs-footer-col a { display: block; color: var(--text-secondary); text-decoration: none; font-size: 0.88rem; margin-bottom: 10px; transition: color 0.2s; }
.cs-footer-col a:hover { color: var(--text); }
.cs-footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; padding-top: 24px; border-top: 1px solid var(--border); }
.cs-footer-bottom p { font-size: 0.78rem; color: var(--text-muted); }
.cs-footer-legal { display: flex; gap: 20px; }
.cs-footer-legal a { font-size: 0.78rem; color: var(--text-muted); text-decoration: none; }
.cs-footer-legal a:hover { color: var(--text-secondary); }