*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --cs-black: #080808;
  --cs-dark: #111111;
  --cs-card: #161616;
  --cs-border: #222222;
  --cs-white: #FFFFFF;
  --cs-muted: #888888;
  --cs-yellow: #FFD84D;
  --cs-green: #00C96B;
  --cs-blue: #00E5FF;
  --cs-purple: #6C5CE7;
  --cs-grad: linear-gradient(135deg, #FFD84D, #00E5FF, #6C5CE7);
}

body { background: var(--cs-black); color: var(--cs-white); font-family: 'Space Grotesk', sans-serif; overflow-x: hidden; }

/* NAV */
.cs-nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 24px 48px; display: flex; align-items: center; justify-content: space-between; background: rgba(8,8,8,0.85); backdrop-filter: blur(12px); border-bottom: 1px solid var(--cs-border); }
.cs-nav-logo { font-size: 20px; font-weight: 700; letter-spacing: -0.5px; }
.cs-nav-logo span { background: var(--cs-grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.cs-nav-links { display: flex; gap: 36px; }
.cs-nav-links a { color: var(--cs-muted); text-decoration: none; font-size: 14px; font-weight: 500; letter-spacing: 0.3px; transition: color 0.2s; }
.cs-nav-links a:hover { color: var(--cs-white); }
.cs-nav-cta { background: var(--cs-yellow); color: #000; padding: 10px 24px; border-radius: 6px; font-weight: 700; font-size: 14px; text-decoration: none; }

/* HERO */
.cs-hero { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 120px 48px 80px; text-align: center; position: relative; overflow: hidden; }
.cs-hero::before { content: ''; position: absolute; width: 800px; height: 800px; border-radius: 50%; background: radial-gradient(circle, rgba(108,92,231,0.12) 0%, transparent 70%); top: 50%; left: 50%; transform: translate(-50%, -50%); pointer-events: none; }
.cs-hero-tag { display: inline-block; background: var(--cs-card); border: 1px solid var(--cs-border); color: var(--cs-muted); font-size: 12px; letter-spacing: 2px; text-transform: uppercase; padding: 8px 20px; border-radius: 100px; margin-bottom: 32px; }
.cs-hero h1 { font-size: clamp(48px, 7vw, 96px); font-weight: 800; line-height: 1.0; letter-spacing: -3px; margin-bottom: 28px; }
.cs-hero h1 .grad { background: var(--cs-grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.cs-hero-sub { font-size: 18px; color: var(--cs-muted); max-width: 520px; margin: 0 auto 48px; line-height: 1.7; }
.cs-hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cs-btn-primary { background: var(--cs-yellow); color: #000; padding: 16px 40px; border-radius: 8px; font-weight: 700; font-size: 15px; text-decoration: none; }
.cs-btn-ghost { border: 1px solid var(--cs-border); color: var(--cs-white); padding: 16px 40px; border-radius: 8px; font-weight: 600; font-size: 15px; text-decoration: none; }

/* MARQUEE */
.cs-marquee { padding: 24px 0; border-top: 1px solid var(--cs-border); border-bottom: 1px solid var(--cs-border); overflow: hidden; background: var(--cs-dark); }
.cs-marquee-track { display: flex; gap: 64px; animation: marquee 20s linear infinite; white-space: nowrap; }
.cs-marquee-track span { font-size: 13px; letter-spacing: 3px; text-transform: uppercase; color: var(--cs-muted); font-weight: 600; }
.cs-marquee-track span em { color: var(--cs-yellow); font-style: normal; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* SECTIONS */
.cs-section { padding: 100px 48px; max-width: 1280px; margin: 0 auto; }
.cs-section-label { font-size: 11px; letter-spacing: 3px; text-transform: uppercase; color: var(--cs-yellow); margin-bottom: 20px; font-weight: 600; }
.cs-section-title { font-size: clamp(32px, 4vw, 52px); font-weight: 800; letter-spacing: -2px; line-height: 1.1; margin-bottom: 16px; }
.cs-section-sub { font-size: 16px; color: var(--cs-muted); max-width: 560px; line-height: 1.7; }

/* SERVICES GRID */
.cs-services { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2px; margin-top: 64px; }
.cs-service-card { background: var(--cs-card); padding: 40px; position: relative; overflow: hidden; }
.cs-service-card::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px; background: var(--cs-grad); transform: scaleX(0); transition: transform 0.3s; transform-origin: left; }
.cs-service-card:hover::after { transform: scaleX(1); }
.cs-service-num { font-size: 11px; letter-spacing: 2px; color: var(--cs-muted); margin-bottom: 24px; }
.cs-service-icon { font-size: 32px; margin-bottom: 20px; }
.cs-service-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; letter-spacing: -0.5px; }
.cs-service-card p { font-size: 14px; color: var(--cs-muted); line-height: 1.7; }

/* STATS */
.cs-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; background: var(--cs-border); margin: 80px 0 0; }
.cs-stat { background: var(--cs-dark); padding: 48px 40px; }
.cs-stat-num { font-size: 56px; font-weight: 800; letter-spacing: -3px; line-height: 1; margin-bottom: 8px; background: var(--cs-grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.cs-stat-label { font-size: 13px; color: var(--cs-muted); letter-spacing: 0.5px; }

/* WORK */
.cs-work-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2px; margin-top: 64px; }
.cs-work-item { background: var(--cs-card); aspect-ratio: 16/10; display: flex; flex-direction: column; justify-content: flex-end; padding: 40px; position: relative; overflow: hidden; }
.cs-work-item:first-child { grid-column: span 2; aspect-ratio: 21/9; }
.cs-work-bg { position: absolute; inset: 0; opacity: 0.15; }
.cs-work-tag { font-size: 11px; letter-spacing: 2px; text-transform: uppercase; color: var(--cs-muted); margin-bottom: 12px; }
.cs-work-item h3 { font-size: 28px; font-weight: 800; letter-spacing: -1px; }
.cs-work-item:hover .cs-work-bg { opacity: 0.25; }

/* CTA */
.cs-cta { text-align: center; padding: 120px 48px; position: relative; overflow: hidden; background: var(--cs-dark); border-top: 1px solid var(--cs-border); }
.cs-cta h2 { font-size: clamp(36px, 5vw, 64px); font-weight: 800; letter-spacing: -2px; margin-bottom: 24px; }
.cs-cta p { font-size: 17px; color: var(--cs-muted); margin-bottom: 48px; }

/* FOOTER */
.cs-footer { padding: 48px; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--cs-border); }
.cs-footer-copy { font-size: 13px; color: var(--cs-muted); }
.cs-footer-links { display: flex; gap: 32px; }
.cs-footer-links a { font-size: 13px; color: var(--cs-muted); text-decoration: none; }
.cs-footer-links a:hover { color: var(--cs-white); }

@media (max-width: 768px) {
  .cs-nav { padding: 20px 24px; }
  .cs-nav-links { display: none; }
  .cs-hero { padding: 100px 24px 60px; }
  .cs-section { padding: 60px 24px; }
  .cs-stats { grid-template-columns: repeat(2, 1fr); }
  .cs-work-grid { grid-template-columns: 1fr; }
  .cs-work-item:first-child { grid-column: span 1; }
  .cs-footer { flex-direction: column; gap: 24px; text-align: center; }
}