:root{--bg: #ffffff;--bg-alt: #f6f7fb;--header-bg: rgba(255, 255, 255, .85);--text: #1f2333;--muted: #5b6275;--primary: #4f46e5;--primary-hover: #4338ca;--on-primary: #ffffff;--border: #e4e7ef;--radius: 14px;--max: 1120px}@media (prefers-color-scheme: dark){:root{--bg: #0f1117;--bg-alt: #161925;--header-bg: rgba(15, 17, 23, .85);--text: #e8eaf2;--muted: #a0a6b8;--primary: #818cf8;--primary-hover: #a5b4fc;--on-primary: #0f1117;--border: #262a3a}}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}a{color:inherit;text-decoration:none}.container{max-width:var(--max);margin:0 auto;padding:0 16px}.header{position:sticky;top:0;z-index:10;background:var(--header-bg);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}.logo{font-weight:800;font-size:1.25rem;color:var(--primary)}.nav{display:flex;gap:28px}.nav a{color:var(--muted);font-weight:500}.nav a:hover{color:var(--text)}.menu-toggle{display:none;background:none;border:0;font-size:1.5rem;color:var(--text);cursor:pointer}.hero{padding:120px 0 100px;text-align:center}.hero h1{font-size:clamp(2.2rem,6vw,3.8rem);line-height:1.1;letter-spacing:-.02em;max-width:800px;margin:0 auto}.lead{color:var(--muted);font-size:1.2rem;max-width:600px;margin:24px auto 0}.actions{display:flex;gap:12px;justify-content:center;margin-top:36px;flex-wrap:wrap}.btn{display:inline-block;padding:12px 22px;border-radius:10px;font-weight:600;border:1px solid transparent;transition:background .15s}.btn-primary{background:var(--primary);color:var(--on-primary)}.btn-primary:hover{background:var(--primary-hover)}.btn-ghost{border-color:var(--border)}.btn-ghost:hover{background:var(--bg-alt)}.section{padding:88px 0}.section-alt{background:var(--bg-alt)}.section h2{font-size:2rem;margin-bottom:36px;text-align:center}.grid{display:grid;gap:20px}.grid-4{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.grid-3{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}.card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:28px}.card h3{margin:12px 0 8px}.card p{color:var(--muted)}.icon{font-size:1.8rem}.about{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:center}.about h2{text-align:left;margin-bottom:16px}.about p{color:var(--muted);font-size:1.1rem}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.stat{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:24px;text-align:center}.stat strong{display:block;font-size:1.8rem;color:var(--primary)}.stat span{color:var(--muted);font-size:.9rem}.plan{display:flex;flex-direction:column}.plan ul{list-style:none;margin:16px 0 24px;flex:1}.plan li{padding:6px 0;color:var(--muted)}.plan li:before{content:"✓ ";color:var(--primary);font-weight:700}.card .price{font-size:2.4rem;font-weight:800;color:var(--text)}.price span{font-size:1rem;color:var(--muted);font-weight:500}.plan-highlight{border-color:var(--primary);box-shadow:0 10px 30px -12px var(--primary)}.plan .btn{text-align:center}.contact{text-align:center;max-width:640px}.contact p{color:var(--muted);margin-bottom:28px}.footer{padding:32px 0;border-top:1px solid var(--border);color:var(--muted);font-size:.9rem;text-align:center}@media (max-width: 720px){.menu-toggle{display:block}.nav{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:0;background:var(--bg);border-bottom:1px solid var(--border)}.nav.open{display:flex}.nav a{padding:14px 16px}.about{grid-template-columns:1fr}.about h2,.about p{text-align:center}.stats{grid-template-columns:repeat(3,minmax(0,1fr))}.stat{padding:16px 8px}.hero{padding:80px 0 64px}.section{padding:64px 0}}