:root{--bg:#fff;--bg-secondary:#f8f9fa;--text:#10131a;--text-secondary:#6c757d;--border:#e9ecef;--primary:#635bff;--teal:#22d3c5;--pink:#ff6b9d}@media (prefers-color-scheme:dark){:root{--bg:#10131a;--bg-secondary:#1a1d26;--text:#fff;--text-secondary:#a8adb7;--border:#2a2d36}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}.container{max-width:1200px;margin:0 auto;padding:0 24px}.header{padding:24px 0;border-bottom:1px solid var(--border)}.nav{display:flex;justify-content:space-between;align-items:center}.logo{font-size:24px;font-weight:700;color:var(--primary);text-decoration:none}.nav-links{display:flex;gap:32px;list-style:none}.language-toggle{border:1px solid var(--border);border-radius:6px;background:transparent;color:var(--text);cursor:pointer;font:inherit;padding:4px 8px}.nav-links a{color:var(--text);text-decoration:none;font-weight:500;transition:color .2s}.nav-links a:hover{color:var(--primary)}.hero{text-align:center;padding:80px 0}.hero h1{font-size:56px;font-weight:700;margin-bottom:24px;line-height:1.2}.hero .tagline{font-size:24px;color:var(--text-secondary);margin-bottom:40px}.cta-button{display:inline-block;background:var(--primary);color:#fff;padding:16px 32px;border-radius:8px;text-decoration:none;font-weight:600;font-size:18px;transition:opacity .2s}.cta-button:hover{opacity:.9}.features{padding:80px 0;background:var(--bg-secondary)}.features h2{text-align:center;font-size:40px;margin-bottom:64px}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));grid-gap:40px;gap:40px}.feature{text-align:center}.feature h3{font-size:24px;margin-bottom:16px}.feature p{color:var(--text-secondary);font-size:16px}.pricing{padding:80px 0}.pricing h2{text-align:center;font-size:40px;margin-bottom:64px}.pricing-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));grid-gap:40px;gap:40px;max-width:800px;margin:0 auto}.pricing-card{border:2px solid var(--border);border-radius:12px;padding:40px;text-align:center}.pricing-card.featured{border-color:var(--primary);position:relative}.pricing-card h3{font-size:28px;margin-bottom:16px}.price{font-size:48px;font-weight:700;margin:24px 0}.price span{font-size:20px;font-weight:400;color:var(--text-secondary)}.features-list{list-style:none;margin:32px 0;text-align:left}.features-list li{padding:12px 0 12px 32px;position:relative}.features-list li:before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:700}.footer{padding:40px 0;border-top:1px solid var(--border);text-align:center;color:var(--text-secondary)}.footer-links{display:flex;justify-content:center;gap:32px;list-style:none;margin-bottom:24px}.footer-links a{color:var(--text-secondary);text-decoration:none}.footer-links a:hover{color:var(--text)}.btn{background:var(--primary);color:#fff;border:none;padding:12px 24px;border-radius:6px;cursor:pointer;font-size:16px;font-weight:600;transition:opacity .2s;width:100%}.btn:hover{opacity:.9}.btn:disabled{opacity:.5;cursor:not-allowed}.form-group{margin-bottom:24px}.form-group label{display:block;margin-bottom:8px;font-weight:500}.form-group input{width:100%;padding:12px;border:1px solid var(--border);border-radius:6px;background:var(--bg);color:var(--text);font-size:16px}.form-group input:focus{outline:2px solid var(--primary);outline-offset:0}.error{color:#dc3545}.error,.success{font-size:14px;margin-top:8px}.success{color:#28a745}.card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;padding:40px;max-width:600px;margin:40px auto}.card h2{margin-bottom:24px}@media (max-width:768px){.hero h1{font-size:40px}.hero .tagline{font-size:18px}.features h2,.pricing h2{font-size:32px}.nav-links{gap:16px}}