@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');
*,*::before,*::after{box-sizing:border-box}
html{-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body{margin:0;font-family:'Inter',-apple-system,BlinkMacSystemFont,"SF Pro Display",system-ui,sans-serif;background:#fbfbfd;color:#1d1d1f;line-height:1.55}
header{padding:20px 32px;background:rgba(255,255,255,0.85);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid rgba(0,0,0,0.06);display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:10}
header h1{font-size:20px;margin:0;font-weight:600;letter-spacing:-0.01em}
header nav{display:flex;gap:28px}
header nav a{color:#6e6e73;text-decoration:none;font-size:14px;font-weight:500;padding:6px 0;border-bottom:2px solid transparent;transition:color .15s}
header nav a:hover{color:#1d1d1f}
header nav a.active{color:#1d1d1f;border-bottom-color:#0071e3}
main{max-width:780px;margin:0 auto;padding:64px 24px 80px}
.hero{margin-bottom:8px}
.hero h2{font-size:48px;font-weight:700;letter-spacing:-.03em;line-height:1.1;margin:0 0 18px;background:linear-gradient(180deg,#1d1d1f 60%,#0071e3 200%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{font-size:18px;color:#424245;margin:0;max-width:600px}
.card{background:#fff;border-radius:20px;padding:36px;margin-top:24px;box-shadow:0 1px 3px rgba(0,0,0,0.04),0 12px 32px rgba(0,0,0,0.04);border:1px solid rgba(0,0,0,0.04)}
.card h3{font-size:22px;margin:0 0 14px;font-weight:600;letter-spacing:-0.01em}
.card p{margin:0 0 14px;line-height:1.65;color:#424245}
.card a{color:#0071e3;text-decoration:none;font-weight:500}
.card a:hover{text-decoration:underline}
.features{list-style:none;padding:0;margin:8px 0 0}
.features li{padding:14px 0;border-top:1px solid #f0f0f2;color:#1d1d1f;display:flex;align-items:flex-start;gap:10px}
.features li::before{content:"";width:6px;height:6px;border-radius:50%;background:#0071e3;flex-shrink:0;margin-top:9px}
.prose h1{font-size:38px;margin:0 0 8px;letter-spacing:-.025em;font-weight:700}
.prose h2{font-size:22px;margin:36px 0 12px;font-weight:600;letter-spacing:-.01em}
.prose h3{font-size:17px;margin:24px 0 8px;color:#424245;font-weight:600}
.prose p,.prose li{color:#424245;line-height:1.7}
.prose ul{padding-left:24px}
.prose a{color:#0071e3;font-weight:500}
footer{text-align:center;padding:48px 24px;color:#86868b;font-size:13px}
@media(max-width:600px){.hero h2{font-size:34px}.card{padding:24px;border-radius:16px}main{padding:32px 16px 60px}}

/* Hover-cards + scroll reveal */
.card{transition:transform .25s ease,box-shadow .25s ease}
.card:hover{transform:translateY(-3px);box-shadow:0 4px 12px rgba(0,0,0,0.06),0 24px 48px rgba(0,0,0,0.08)}
.contact-button{display:inline-flex;align-items:center;gap:8px;margin-top:14px;padding:12px 26px;background:#0071e3;color:#fff;border-radius:980px;text-decoration:none;font-weight:500;font-size:15px;transition:transform .15s ease,box-shadow .25s ease}
.contact-button:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,113,227,0.32);color:#fff;text-decoration:none}
.contact-button .cb-arrow{transition:transform .25s}
.contact-button:hover .cb-arrow{transform:translateX(4px)}
/* Scroll reveal: появление снизу + лёгкий sway */
.reveal{opacity:0;transform:translateY(36px) rotate(-.4deg);transition:opacity .8s cubic-bezier(.2,.8,.2,1),transform .8s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:translateY(0) rotate(0)}
.reveal:nth-child(odd){transform:translateY(36px) translateX(-12px) rotate(-.4deg)}
.reveal:nth-child(odd).in{transform:translateY(0) translateX(0) rotate(0)}