:root{--navy:#061426;--blue:#1778ff;--line:#dce6f0;--muted:#708196}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,sans-serif;background:#f6f9fc;color:#15263a}.wrap{width:min(1120px,calc(100% - 30px));margin:auto}.narrow{max-width:720px}header{position:sticky;top:0;z-index:10;background:rgba(6,20,38,.96)}.nav{height:66px;display:flex;align-items:center;justify-content:space-between;color:#fff}.nav nav{display:flex;gap:18px}.nav a{color:#dceaff;text-decoration:none;font-weight:700}.hero{padding:82px 0;background:radial-gradient(circle at 85% 10%,#1f5db5,transparent 34%),linear-gradient(135deg,#061426,#0d284c);color:#fff}.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:center}.tag{display:inline-block;color:#69adff;font-size:12px;font-weight:900;letter-spacing:.12em}.hero h1,.head h2{font-size:clamp(36px,6vw,62px);line-height:1.04;margin:14px 0}.hero p,.head p{line-height:1.7;color:#c8d8eb}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 20px;border:0;border-radius:14px;background:var(--blue);color:#fff;font-weight:900;text-decoration:none;cursor:pointer}.signal,.cards article,.calc,.empty{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:0 18px 45px rgba(6,20,38,.1)}.signal{padding:26px;color:#15263a}.signal h2{font-size:44px;margin:8px 0;color:#67788b}.signal-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:20px 0}.signal-grid div{background:#f3f7fb;padding:14px;border-radius:13px}.signal-grid small,.result small{display:block;color:var(--muted)}.signal em{font-size:12px;color:var(--muted)}.section{padding:72px 0}.alt{background:#eaf2fa}.head{text-align:center;max-width:800px;margin:0 auto 32px}.head h2{font-size:clamp(32px,5vw,52px)}.head p{color:var(--muted)}.cards{display:grid;grid-template-columns:1fr 1fr;gap:18px}.cards article{padding:25px}.cards li{margin:12px 0;line-height:1.5}.chart{height:520px;margin-top:20px;overflow:hidden;border-radius:22px;background:#111}.chart>div{height:100%}.calc{padding:25px;display:grid;gap:17px}.calc label{font-weight:800}.calc input{width:100%;margin-top:8px;min-height:48px;border:1px solid var(--line);border-radius:12px;padding:12px;font:inherit}.result{padding:18px;border-radius:15px;background:#f2f7fc}.result strong{display:block;font-size:28px;margin:4px 0 14px}.warning{padding:17px;border-radius:15px;background:#fff3ce;border:1px solid #ead28a}.empty{padding:32px;text-align:center;color:var(--muted)}footer{padding:28px;text-align:center;background:var(--navy);color:#a9bed5}
@media(max-width:800px){.hero-grid,.cards{grid-template-columns:1fr}.nav nav{display:none}.hero{padding:55px 0}.section{padding:52px 0}}