:root{
  --bg:#0b1020; --bg2:#0e1530; --panel:#141d3a; --panel2:#1a2647;
  --ink:#eef2ff; --mut:#94a3c4; --line:#26335c;
  --ok:#34d399; --warn:#fbbf24; --bad:#fb7185;
  --brand:#3b82f6; --brand2:#0ea5e9;
  --grad:linear-gradient(135deg,var(--brand),var(--brand2));
}
*{box-sizing:border-box} html{scroll-behavior:smooth} html,body{margin:0}
body{font:16px/1.6 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial;background:var(--bg);color:var(--ink);overflow-x:hidden}
a{color:inherit;text-decoration:none}
.wrap{max-width:1140px;margin:0 auto;padding:0 22px}
.grad-txt{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;cursor:pointer;border-radius:11px;
  border:1px solid var(--line);padding:13px 22px;background:var(--panel2);color:var(--ink);transition:.18s;font-size:15px}
.btn:hover{transform:translateY(-2px);border-color:var(--brand)}
.btn.primary{background:var(--grad);color:#0b1020;border:0;box-shadow:0 12px 30px -10px var(--brand)}
.btn.ghost{background:transparent}
.eyebrow{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);background:#16224d;border:1px solid var(--line);padding:6px 13px;border-radius:999px}
nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:rgba(11,16,32,.72);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:18px;letter-spacing:-.02em}
.logo{width:36px;height:36px;border-radius:10px;background:var(--grad);display:grid;place-items:center;
  font-weight:800;color:#0b1020;box-shadow:0 8px 22px -8px var(--brand)}
.navlinks{display:flex;align-items:center;gap:26px;font-size:14.5px;color:var(--mut);font-weight:600}
.navlinks a:hover{color:var(--ink)}
.navcta{display:flex;align-items:center;gap:12px}
.menubtn{display:none;background:none;border:0;color:var(--ink);font-size:24px;cursor:pointer;
  padding:8px 10px;min-width:44px;min-height:44px;line-height:1;border-radius:10px}
@media(max-width:860px){.navlinks{display:none} .menubtn{display:block} .navcta .btn:not(.primary){display:none}
  .navlinks.open{display:flex;flex-direction:column;align-items:stretch;gap:0;position:absolute;top:66px;left:0;right:0;background:var(--bg);padding:8px 22px 12px;border-bottom:1px solid var(--line)}
  .navlinks.open a{display:block;padding:13px 4px;border-bottom:1px solid var(--line);font-size:16px}
  .navlinks.open a:last-child{border-bottom:0}}
.navcta .btn{white-space:nowrap}
@media(max-width:480px){.brand{font-size:16px;gap:8px} .logo{width:32px;height:32px;font-size:13px}
  .navcta{gap:6px} .navcta .btn.primary{padding:10px 14px;font-size:14px}}

.hero{position:relative;padding:40px 0 10px}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background:
  radial-gradient(900px 460px at 50% -8%,rgba(59,130,246,.22),transparent 60%),
  radial-gradient(700px 420px at 12% 30%,rgba(14,165,233,.16),transparent 55%)}
.doc{max-width:860px;margin:0 auto}
h1{font-size:clamp(28px,4.2vw,42px);line-height:1.1;letter-spacing:-.03em;margin:14px 0 10px;font-weight:850}
.sub{font-size:clamp(16px,2.1vw,18px);color:var(--mut);margin:0 0 14px}
.crumbs{font-size:13px;color:#6b7aa6;margin:0 0 4px}.crumbs a:hover{color:var(--ink)}
.steps{margin:0 0 6px;padding-left:22px;color:#cfd8f5;font-size:15px}.steps li{margin-bottom:4px}

.tool{background:linear-gradient(180deg,var(--panel),var(--bg2));border:1px solid var(--line);border-radius:18px;padding:22px 22px 20px;margin:18px 0 18px}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 16px}
.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}
@media(max-width:640px){.grid,.grid.three{grid-template-columns:1fr}}
.field label{display:block;font-size:13px;font-weight:700;color:var(--ink);margin:0 0 6px}
.field .hint{display:block;font-size:12.5px;color:#6b7aa6;margin-top:5px;line-height:1.45}
.field input,.field select{width:100%;font:inherit;font-size:16px;color:var(--ink);background:#0b1328;border:1px solid var(--line);
  border-radius:10px;padding:11px 12px;min-height:46px}
.field input:focus,.field select:focus{outline:2px solid var(--brand);outline-offset:1px}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.result{margin-top:18px;border-top:1px solid var(--line);padding-top:18px}
.big{font-size:clamp(26px,4vw,36px);font-weight:850;letter-spacing:-.02em;line-height:1.15;margin:2px 0 6px}
.label{font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--mut)}
.pill{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.05em;text-transform:uppercase;padding:4px 10px;border-radius:999px;border:1px solid var(--line);vertical-align:middle}
.s-ok{color:#a7f3d0;background:#06301f}.s-soon{color:#fde68a;background:#3a2a04}.s-urgent,.s-bad{color:#fecdd3;background:#3a0a14}
.kv{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:14px 0 4px}
@media(max-width:640px){.kv{grid-template-columns:1fr 1fr}}
.kv div{background:#0b1328;border:1px solid var(--line);border-radius:12px;padding:10px 12px}
.kv b{display:block;font-size:17px;color:var(--ink)} .kv span{font-size:12.5px;color:var(--mut)}
.err{color:#fecdd3;font-weight:700}
.note{font-size:13.5px;color:var(--mut);margin:12px 0 0}
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;margin:12px 0 4px;background:var(--panel)}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:14.5px}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:middle;color:#cfd8f5}
thead th{background:var(--panel2);color:var(--ink);font-size:12px;text-transform:uppercase;letter-spacing:.07em;font-weight:800}
tbody tr:last-child td{border-bottom:0}
td input{width:100%;font:inherit;font-size:15px;color:var(--ink);background:#0b1328;border:1px solid var(--line);border-radius:8px;padding:8px 9px;min-height:40px}
td.num input{max-width:90px}
.tablewrap.inputs table{min-width:0}.tablewrap.inputs th{white-space:normal}.tablewrap.inputs td{padding:8px}
@media(max-width:640px){.tablewrap.inputs th,.tablewrap.inputs td{padding:7px 6px} .tablewrap.inputs td.num input{max-width:64px}}
.rm{background:none;border:1px solid var(--line);color:var(--mut);border-radius:8px;min-width:40px;min-height:40px;cursor:pointer}
.cta{margin:18px 0 0;background:linear-gradient(120deg,#16224d,#1c1640);border:1px solid var(--line);border-radius:16px;padding:20px 22px}
.cta h2{margin:0 0 6px;font-size:20px} .cta p{margin:0 0 14px;color:#cfd8f5;font-size:15px}
.disc{font-size:13.5px;color:var(--mut);margin:12px 0 0}

section.body{padding:14px 0 40px}
.body h2{font-size:clamp(21px,3vw,27px);letter-spacing:-.02em;margin:34px 0 10px;font-weight:820}
.body h3{font-size:17px;margin:20px 0 6px}
.body p,.body li{color:#cfd8f5;font-size:16px}
.body p{margin:0 0 14px} .body ul,.body ol{margin:0 0 16px;padding-left:22px} .body li{margin-bottom:6px}
.body a.inl,.sub a.inl,.note a.inl{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.faq details{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:700;color:var(--ink)}
.faq details p{margin:10px 0 0}
.related{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:12px;margin:10px 0 0}
.related a{display:block;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.related a:hover{border-color:var(--brand)} .related b{display:block;color:var(--ink);margin-bottom:4px} .related span{color:var(--mut);font-size:14px}

footer{border-top:1px solid var(--line);background:var(--bg2);padding:50px 0 36px;color:var(--mut);font-size:14px}
.fgrid{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;margin-bottom:28px}
.fcol h4{color:var(--ink);font-size:13px;text-transform:uppercase;letter-spacing:.08em;margin:0 0 12px}
.fcol a{display:block;color:var(--mut);padding:5px 0;margin-bottom:2px}.fcol a:hover{color:var(--ink)}
.fcol a.brand{display:flex;padding:0}
.fbrand{max-width:300px}
.legalnote{border-top:1px solid var(--line);padding-top:20px;font-size:12.5px;color:#6b7aa6;line-height:1.7}