*{margin:0;padding:0;box-sizing:border-box}:root{--color-bg: #000000;--color-surface: #111111;--color-text: #25D366;--color-text-secondary: #1DA855;--color-primary: #25D366;--color-primary-hover: #1DA855;--color-border: #1a3a2a;--max-width: 1100px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--color-bg);color:var(--color-text);line-height:1.6;-webkit-font-smoothing:antialiased}.page{min-height:100vh;display:flex;flex-direction:column}.nav{border-bottom:1px solid var(--color-border);background:var(--color-surface)}.nav-inner{max-width:var(--max-width);margin:0 auto;padding:16px 24px}.logo{font-size:1.5rem;font-weight:700;text-decoration:none;color:#25d366;letter-spacing:-.02em}.hero{max-width:var(--max-width);margin:0 auto;padding:100px 24px 80px;text-align:center}.hero h1{font-size:3.2rem;font-weight:800;line-height:1.15;letter-spacing:-.03em;max-width:700px;margin:0 auto 24px}.subtitle{font-size:1.25rem;color:var(--color-text-secondary);max-width:540px;margin:0 auto 40px}.cta-button{display:inline-block;background:var(--color-primary);color:#000;padding:16px 36px;border-radius:8px;text-decoration:none;font-size:1.1rem;font-weight:600;transition:background .2s}.cta-button:hover{background:var(--color-primary-hover)}.features{max-width:var(--max-width);margin:0 auto;padding:80px 24px}.features h2,.use-cases h2,.cta-section h2{text-align:center;font-size:2rem;font-weight:700;margin-bottom:48px;letter-spacing:-.02em}.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}.feature-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;padding:32px 24px;text-align:center}.feature-icon{font-size:2.5rem;margin-bottom:16px}.feature-card h3{font-size:1.2rem;font-weight:700;margin-bottom:8px}.feature-card p{color:var(--color-text-secondary);font-size:.95rem}.feature-card code{background:#1a3a2a;padding:2px 6px;border-radius:4px;font-size:.9em;color:#25d366}.use-cases{max-width:var(--max-width);margin:0 auto;padding:0 24px 80px}.use-cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:700px;margin:0 auto}.use-case-item{background:var(--color-surface);border:1px solid var(--color-border);border-radius:8px;padding:16px 20px;text-align:center;font-weight:500;font-size:.95rem}.cta-section{background:var(--color-surface);border-top:1px solid var(--color-border);border-bottom:1px solid var(--color-border);padding:80px 24px;text-align:center}.cta-section p{color:var(--color-text-secondary);font-size:1.1rem;margin-bottom:32px}.footer{max-width:var(--max-width);margin:auto auto 0;padding:32px 24px;text-align:center;color:var(--color-text-secondary);font-size:.9rem}@media(max-width:768px){.hero h1{font-size:2.2rem}.subtitle{font-size:1.1rem}.features-grid{grid-template-columns:1fr}.use-cases-grid{grid-template-columns:repeat(2,1fr)}.hero{padding:60px 24px 50px}}@media(max-width:480px){.use-cases-grid{grid-template-columns:1fr}}