:root{
 --bg:#070b14;--panel:#101827;--panel2:#0b1220;--line:#24314d;
 --text:#eef4ff;--muted:#91a2c5;--accent:#61e7b7;--accent2:#53a9ff;
 --green:#55e6a9;--red:#ff6b7a;--yellow:#f0c86a;--shadow:0 20px 70px rgba(0,0,0,.25)
}
*{box-sizing:border-box} html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(circle at 18% 0%,rgba(83,169,255,.08),transparent 34%),linear-gradient(180deg,#070b14,#0b1120 55%,#08101b);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif}
.container{width:min(1300px,calc(100% - 32px));margin:auto}
.topbar{position:sticky;top:0;z-index:20;background:rgba(7,11,20,.9);backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.05)}
.nav{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:850}.brand-mark{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent2),var(--accent));color:#04111a;font-size:12px}.accent{color:var(--accent)}
.nav-actions,.langs{display:flex;align-items:center;gap:8px}.home-link{color:#b7c4dd;text-decoration:none;font-size:13px}.home-link:hover{color:#fff}
.lang-btn{border:1px solid var(--line);background:#0e1625;color:#a9b8d4;border-radius:8px;padding:6px 8px;font-weight:800;cursor:pointer}.lang-btn.active{background:linear-gradient(135deg,var(--accent2),var(--accent));color:#06111a;border-color:transparent}
.page{padding:44px 0 58px}.hero{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:25px}.eyebrow{font-size:11px;letter-spacing:.14em;color:var(--accent);font-weight:900}
h1{font-size:clamp(40px,5vw,66px);line-height:1;margin:10px 0 14px;letter-spacing:-.04em}.hero p{max-width:760px;color:var(--muted);font-size:17px;margin:0}.hero-actions{display:flex;gap:8px;flex-wrap:wrap}
.btn{border-radius:10px;padding:11px 15px;font-weight:850;cursor:pointer;border:1px solid var(--line)}.btn.primary{background:linear-gradient(135deg,var(--accent2),var(--accent));color:#04111a;border:0}.btn.secondary{background:#111a2c;color:#d7e2f5}
.layout{display:grid;grid-template-columns:365px minmax(0,1fr);gap:18px;align-items:start}.panel,.visual-card,.explain-card,.formula-card{background:linear-gradient(180deg,#11192a,#0b1322);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
.controls{padding:18px;position:sticky;top:86px}.panel-head,.card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.panel-head h2,.card-head h3{margin:0}.panel-head p,.card-head p{margin:4px 0 0;color:var(--muted);font-size:12px}.live{font-size:9px;color:var(--accent);font-weight:900;letter-spacing:.08em}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:11px}.form-grid label{display:grid;gap:6px;font-size:11px;color:#aebbd3}.form-grid label:first-child,.form-grid .full{grid-column:span 2}
input,select{width:100%;background:#0a1221;border:1px solid var(--line);color:#eef4ff;border-radius:9px;padding:10px;outline:none}input:focus,select:focus{border-color:#4c91c3}.money-input,.suffix-input{position:relative}.money-input span,.suffix-input span{position:absolute;top:50%;transform:translateY(-50%);color:#6f82a5}.money-input span{left:10px}.money-input input{padding-left:23px}.suffix-input span{right:10px}.suffix-input input{padding-right:28px}
.combo{display:flex;gap:6px}.combo select{flex:0 0 46%;min-width:0}.combo input{flex:1;min-width:0}
.divider{display:flex;align-items:center;gap:10px;margin:8px 0 0;font-size:9px;font-weight:900;letter-spacing:.12em;color:var(--accent)}.divider:after{content:'';flex:1;height:1px;background:var(--line)}
.compare-toggle{display:flex;align-items:center;gap:9px;font-size:11px;color:#aebbd3;margin-top:4px}.compare-toggle input{width:auto;accent-color:var(--accent);cursor:pointer}.compare-inputs{display:grid;grid-template-columns:1fr 1fr;gap:11px;padding:12px;border:1px dashed #2a3b5c;border-radius:12px;background:#0b1322}.compare-inputs label{display:grid;gap:6px;font-size:11px;color:#aebbd3}
.validation{margin-top:14px;padding:12px;border-radius:11px;display:grid;gap:3px}.validation.good{background:#0d231d;border:1px solid #1f5847}.validation.bad{background:#281319;border:1px solid #67303b}.validation strong{font-size:12px}.validation span{font-size:10px;color:#9dafca}.hidden{display:none!important}
.results{display:grid;gap:16px;min-width:0}.primary-result{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:22px 24px;border-radius:16px;border:1px solid #2d7d7e;background:radial-gradient(circle at 100% 0%,rgba(97,231,183,.11),transparent 38%),linear-gradient(180deg,#11282f,#101827);box-shadow:var(--shadow)}.result-kicker{font-size:9px;letter-spacing:.12em;color:#8fa0bf;font-weight:900}.primary-result strong{display:block;color:var(--accent);font-size:clamp(34px,5vw,54px);letter-spacing:-.035em;margin-top:5px}.primary-result p{margin:8px 0 0;color:#a7b7d1;font-size:13px}.primary-side{flex:0 0 auto;min-width:150px;text-align:right;border:1px solid #1d2a43;background:#0c1626;border-radius:12px;padding:12px 16px}.primary-side strong{display:block;color:var(--accent);font-size:clamp(20px,3vw,30px);letter-spacing:-.03em;margin-top:4px}.primary-side p{margin:6px 0 0;color:#7f91b1;font-size:10px}
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.metric{background:#101827;border:1px solid var(--line);border-radius:13px;padding:15px}.metric span{display:block;color:#8fa0bf;font-size:11px}.metric strong{display:block;font-size:19px;margin-top:8px;overflow-wrap:anywhere}.metric:first-child{border-color:#2d7d7e;background:linear-gradient(180deg,#11282f,#101827)}
.visual-card,.explain-card,.formula-card{padding:16px}canvas{width:100%;height:auto;display:block;background:#09111e;border-radius:10px;margin-top:12px}
.streak-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:9px;margin-top:12px}.streak-cell{border:1px solid #1d2a43;background:#0b1423;border-radius:11px;padding:11px;text-align:center}.streak-cell span{display:block;color:#8fa0bf;font-size:10px}.streak-cell strong{display:block;font-size:16px;margin-top:5px}
.mc-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:9px;margin-top:12px}.mc-grid>div{padding:12px;border:1px solid #1d2a43;background:#0b1423;border-radius:11px}.mc-grid span{display:block;color:#8fa0bf;font-size:10px;line-height:1.35}.mc-grid strong{display:block;font-size:14px;margin-top:5px;overflow-wrap:anywhere}
.matrix-wrap{overflow-x:auto;margin-top:12px}#matrixTable{width:100%;border-collapse:collapse;font-size:12px}#matrixTable th,#matrixTable td{padding:10px 12px;border:1px solid #1d2a43;text-align:center}#matrixTable thead th,#matrixTable tbody th{color:#8fa0bf;font-size:10px;font-weight:900;letter-spacing:.05em;background:#0b1423}#matrixTable td{font-variant-numeric:tabular-nums}#matrixTable td.pos{color:var(--green)}#matrixTable td.neg{color:var(--red)}#matrixTable td.active{outline:2px solid var(--accent);background:#10262d}
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}.compare-col{padding:15px;border:1px solid #1d2a43;background:#0b1423;border-radius:12px}.compare-col>span{display:block;color:#8fa0bf;font-size:11px;font-weight:900;letter-spacing:.05em}.compare-col>strong{display:block;font-size:24px;margin:6px 0}.compare-col>small{display:block;color:#7f91b1;font-size:10px;line-height:1.5}.compare-verdict{margin:12px 2px 0;color:#d7e2f5;font-size:13px;font-weight:700}
.explain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:12px}.explain-grid>div{padding:15px;border:1px solid #1d2a43;background:#0b1423;border-radius:12px}.explain-grid span{display:block;color:var(--accent);font-size:9px;font-weight:900;letter-spacing:.1em}.explain-grid strong{display:block;margin:6px 0;font-size:15px}.explain-grid p{margin:0;color:#899bbb;font-size:11px;line-height:1.5}
.formula-grid{display:grid;gap:9px;margin-top:12px}.formula-grid>div{display:grid;grid-template-columns:64px minmax(0,1fr);gap:10px;align-items:center;padding:11px 12px;border-radius:10px;border:1px solid #1d2a43;background:#0b1423}.formula-grid span{font-size:11px;color:#a8b8d2;font-weight:850}.formula-grid code{overflow-wrap:anywhere;color:#d8e7fa;font-size:11px}.formula-note{color:#7f91b2;font-size:10px;line-height:1.5;margin:10px 2px 0}
.note{margin-top:18px;color:#8293b2;font-size:12px;padding:14px 0}.note b{color:#cbd7ea}.positive{color:var(--green)!important}.negative{color:var(--red)!important}
@media(max-width:1050px){.layout{grid-template-columns:1fr}.controls{position:static}.mc-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:760px){.hero{align-items:flex-start;flex-direction:column}.metrics{grid-template-columns:1fr 1fr}.form-grid{grid-template-columns:1fr}.form-grid label{grid-column:auto!important}.compare-inputs{grid-template-columns:1fr}.home-link{display:none}.explain-grid{grid-template-columns:1fr}.compare-grid{grid-template-columns:1fr}.streak-grid{grid-template-columns:repeat(2,1fr)}.primary-result{align-items:flex-start;flex-direction:column}.primary-side{text-align:left}}
@media(max-width:480px){.metrics{grid-template-columns:1fr}.mc-grid{grid-template-columns:1fr 1fr}.container{width:min(100% - 20px,1300px)}}
.seo-method{width:min(1300px,calc(100% - 32px));margin:22px auto;padding:24px;border:1px solid var(--line);border-radius:16px;background:#0d1625;color:#aebbd3;line-height:1.7}.seo-method h2{margin:0 0 12px;color:var(--text);font-size:24px}.seo-method p{margin:9px 0}.seo-method a,.seo-method code{color:var(--accent)}.source-line{font-size:13px}
@media(max-width:760px){.seo-method{width:calc(100% - 24px);padding:18px}}