body{margin:0}[hidden]{display:none!important}img{max-width:100%}

/* Layout: dark ink hero band with a live calculator, then airy cool-grey sections; tool pages use content + sticky contents rail. */
:root{
  --bg:#F4F7FA; --surface:#FFFFFF; --surface-2:#EAF0F5; --ink:#0D1B2A; --muted:#566779; --line:#D9E2EB;
  --brand:#0B7A75; --brand-strong:#075C58; --brand-soft:#D9F0EE; --on-brand:#FFFFFF;
  --accent:#FF6A3D; --accent-soft:#FFE7DE; --on-accent:#2A0E04;
  --hero-bg:#0D1B2A; --hero-fg:#EAF2F8; --hero-muted:#9FB3C6; --hero-line:#1F3247; --hero-card:#132538;
  --good:#1E9152; --good-soft:#DCF3E5; --warn:#B57A00; --warn-soft:#FBEFD2; --bad:#C93D3D; --bad-soft:#F9E0E0;
  --shadow:0 1px 2px rgba(13,27,42,.06),0 8px 24px rgba(13,27,42,.06);
  --font:"Poppins",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --r:14px; --r-sm:9px;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#09121D; --surface:#101C2A; --surface-2:#172636; --ink:#E6EEF5; --muted:#93A6B8; --line:#22344A;
  --brand:#33C3B8; --brand-strong:#5ED6CC; --brand-soft:#0E2E2F; --on-brand:#03211F;
  --accent:#FF8660; --accent-soft:#3A1E15; --on-accent:#2A0E04;
  --hero-bg:#0C1826; --hero-fg:#EAF2F8; --hero-muted:#93A6B8; --hero-line:#1E3146; --hero-card:#12233A;
  --good:#47C47F; --good-soft:#123222; --warn:#E3AE3D; --warn-soft:#352812; --bad:#F07373; --bad-soft:#3A1818;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.25); color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#09121D; --surface:#101C2A; --surface-2:#172636; --ink:#E6EEF5; --muted:#93A6B8; --line:#22344A;
  --brand:#33C3B8; --brand-strong:#5ED6CC; --brand-soft:#0E2E2F; --on-brand:#03211F;
  --accent:#FF8660; --accent-soft:#3A1E15; --on-accent:#2A0E04;
  --hero-bg:#0C1826; --hero-fg:#EAF2F8; --hero-muted:#93A6B8; --hero-line:#1E3146; --hero-card:#12233A;
  --good:#47C47F; --good-soft:#123222; --warn:#E3AE3D; --warn-soft:#352812; --bad:#F07373; --bad-soft:#3A1818;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.25); color-scheme:dark}

*{box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:var(--font);font-size:15.5px;line-height:1.65;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:60;background:var(--hero-bg)}
h1,h2,h3,h4{line-height:1.2;margin:0;text-wrap:balance;letter-spacing:-.02em}
p{margin:0}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2.5px solid var(--accent);outline-offset:2px;border-radius:6px}
.wrap{max-width:1180px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.num{font-variant-numeric:tabular-nums}
.mono{font-family:var(--mono)}
.eyebrow{font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--brand)}
.muted{color:var(--muted)}

/* Header */
header.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:var(--hero-bg);color:var(--hero-fg);border-bottom:1px solid var(--hero-line)}
.top .wrap{display:flex;align-items:center;gap:20px;height:64px}
.logo{display:flex;align-items:center;gap:10px;color:var(--hero-fg);font-weight:700;font-size:18px;letter-spacing:-.02em}
.logo:hover{text-decoration:none}
.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--brand);display:grid;place-items:center;position:relative;overflow:hidden}
.logo-mark::after{content:"";position:absolute;right:-6px;bottom:-6px;width:20px;height:20px;border-radius:50%;background:var(--accent)}
.logo-mark span{position:relative;z-index:1;font-family:var(--mono);font-size:14px;font-weight:600;color:#fff}
.logo small{display:block;font-size:11px;font-weight:500;color:var(--hero-muted);letter-spacing:0;margin-top:-3px}
nav.main{display:flex;gap:4px;margin-left:auto}
nav.main a{color:var(--hero-muted);font-weight:500;font-size:14.5px;padding:8px 14px;border-radius:999px}
nav.main a:hover{color:var(--hero-fg);text-decoration:none;background:var(--hero-line)}
nav.main a.on{color:var(--hero-fg);background:var(--hero-line)}
.icon-btn{width:38px;height:38px;border-radius:10px;border:1px solid var(--hero-line);background:transparent;color:var(--hero-fg);display:grid;place-items:center;cursor:pointer}
.icon-btn:hover{background:var(--hero-line)}
.menu-btn{display:none}
@media (max-width:760px){
  .menu-btn{display:grid;margin-left:auto}
  nav.main{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;background:var(--hero-bg);border-bottom:1px solid var(--hero-line);padding:8px max(16px,env(safe-area-inset-right,0px)) 14px max(16px,env(safe-area-inset-left,0px))}
  nav.main.open{display:flex}
}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:999px;border:1px solid transparent;font-weight:600;font-size:14.5px;cursor:pointer;white-space:nowrap;transition:transform .15s ease,background .15s}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:var(--on-accent)}
.btn-brand{background:var(--brand);color:var(--on-brand)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{background:var(--surface-2)}
.btn-sm{height:34px;padding:0 14px;font-size:13px}

/* Hero */
.hero{background:var(--hero-bg);color:var(--hero-fg);position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--hero-line) 1px,transparent 1px),linear-gradient(90deg,var(--hero-line) 1px,transparent 1px);background-size:44px 44px;opacity:.55;mask-image:radial-gradient(ellipse at 70% 40%,#000 0%,transparent 70%);-webkit-mask-image:radial-gradient(ellipse at 70% 40%,#000 0%,transparent 70%)}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;padding-block:64px 72px}
.hero h1{font-size:clamp(34px,5vw,56px);font-weight:700;letter-spacing:-.035em}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero p.lead{color:var(--hero-muted);font-size:17px;max-width:520px;margin-top:18px}
.hero .eyebrow{color:var(--brand-strong)}
:root .hero .eyebrow{color:#5ED6CC}
.search{display:flex;align-items:center;gap:8px;background:var(--surface);border-radius:999px;padding:6px 6px 6px 20px;margin-top:28px;max-width:520px;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:15px;color:var(--ink);height:40px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.chip{border:1px solid var(--hero-line);color:var(--hero-muted);background:transparent;border-radius:999px;padding:5px 13px;font-size:13px;cursor:pointer}
.chip:hover{color:var(--hero-fg);border-color:var(--hero-muted);text-decoration:none}
.hero-facts{display:flex;flex-wrap:wrap;gap:28px;margin-top:34px}
.hero-facts div{font-size:13px;color:var(--hero-muted)}
.hero-facts b{display:block;font-size:22px;color:var(--hero-fg);font-weight:700}

.mini{background:var(--hero-card);border:1px solid var(--hero-line);border-radius:20px;padding:24px;box-shadow:0 30px 60px rgba(0,0,0,.35)}
.mini-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.mini-head b{font-size:15px}
.live{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:#5ED6CC}
.live::before{content:"";width:7px;height:7px;border-radius:50%;background:#5ED6CC;box-shadow:0 0 0 4px rgba(94,214,204,.18);animation:pulse 1.8s infinite}
@keyframes pulse{50%{box-shadow:0 0 0 7px rgba(94,214,204,0)}}
.mini label{display:flex;justify-content:space-between;font-size:13px;color:var(--hero-muted);margin-top:14px}
.mini label output{color:var(--hero-fg);font-weight:600}
.mini-res{display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:center;margin-top:22px;padding-top:20px;border-top:1px dashed var(--hero-line)}
.ring{width:96px;height:96px;border-radius:50%;display:grid;place-items:center;position:relative}
.ring::after{content:"";position:absolute;inset:14px;border-radius:50%;background:var(--hero-card)}
.ring span{position:relative;z-index:1;font-size:12px;font-weight:600}
.mini-res .big{font-size:30px;font-weight:700;letter-spacing:-.02em}
.mini-res .sub{font-size:12.5px;color:var(--hero-muted)}
.legend{display:flex;gap:14px;font-size:12px;color:var(--hero-muted);margin-top:6px}
.dot{display:inline-block;width:9px;height:9px;border-radius:3px;margin-right:5px;vertical-align:middle}

input[type=range]{width:100%;accent-color:var(--accent);margin-top:6px}

/* Sections */
section.band{padding-block:72px}
.sec-head{display:flex;justify-content:space-between;align-items:end;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.sec-head h2{font-size:clamp(24px,3vw,32px);font-weight:700}
.sec-head p{color:var(--muted);max-width:520px;margin-top:6px}

.cats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cat{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px;cursor:pointer;text-align:left;transition:border-color .15s,transform .15s}
.cat:hover{border-color:var(--brand);transform:translateY(-2px)}
.cat .glyph{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-family:var(--mono);font-weight:600;font-size:15px;margin-bottom:16px}
.cat h3{font-size:17px;font-weight:600}
.cat p{font-size:13.5px;color:var(--muted);margin-top:4px}
.cat .count{font-size:12.5px;font-weight:600;color:var(--brand);margin-top:14px;display:block}

.grid-tools{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.tcard{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px;display:flex;flex-direction:column;gap:10px;color:var(--ink);transition:border-color .15s,box-shadow .15s,transform .15s;position:relative}
a.tcard:hover{text-decoration:none;border-color:var(--brand);box-shadow:var(--shadow);transform:translateY(-2px)}
.tcard .row{display:flex;align-items:center;gap:12px}
.tcard .glyph{width:40px;height:40px;flex:none;border-radius:11px;display:grid;place-items:center;font-family:var(--mono);font-weight:600;font-size:13px}
.tcard h3{font-size:15.5px;font-weight:600}
.tcard .cat-l{font-size:12px;color:var(--muted)}
.tcard p{font-size:13.5px;color:var(--muted);flex:1}
.pill{display:inline-flex;align-items:center;gap:5px;font-size:11.5px;font-weight:600;padding:3px 10px;border-radius:999px;white-space:nowrap}
.pill-live{background:var(--good-soft);color:var(--good)}
.pill-soon{background:var(--surface-2);color:var(--muted)}
.pill-new{background:var(--accent-soft);color:var(--accent)}
.pill-warn{background:var(--warn-soft);color:var(--warn)}
.pill-bad{background:var(--bad-soft);color:var(--bad)}
.tcard .pill{position:absolute;top:18px;right:18px}
.tcard.soon{opacity:.8}

.g-fin{background:var(--brand-soft);color:var(--brand)}
.g-health{background:var(--accent-soft);color:var(--accent)}
.g-study{background:var(--warn-soft);color:var(--warn)}
.g-text{background:var(--surface-2);color:var(--ink)}

.why{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.why div h3{font-size:17px;font-weight:600;margin:14px 0 6px}
.why div p{color:var(--muted);font-size:14.5px}
.why svg{width:28px;height:28px;color:var(--brand)}

.guides{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.guide{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px;display:flex;flex-direction:column;gap:8px}
.guide .meta{font-size:12px;color:var(--muted)}
.guide h3{font-size:16px;font-weight:600}
.guide p{font-size:13.5px;color:var(--muted)}

.cta{background:var(--brand);color:var(--on-brand);border-radius:22px;padding:40px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta h2{font-size:26px;font-weight:700}
.cta p{opacity:.85;margin-top:6px}

footer{border-top:1px solid var(--line);padding-block:44px 30px;margin-top:20px}
.foot{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:28px}
.foot h4{font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin-bottom:12px}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:7px;font-size:14px}
.foot ul a{color:var(--ink)}
.foot .logo{color:var(--ink)}
.copy{margin-top:30px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* Tools page */
.page-head{padding-block:44px 8px}
.page-head h1{font-size:clamp(28px,4vw,40px);font-weight:700}
.page-head p{color:var(--muted);margin-top:8px;max-width:620px}
.filters{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:26px 0 22px}
.fchip{border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:7px 16px;font-size:13.5px;font-weight:500;cursor:pointer}
.fchip.on{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.fsearch{margin-left:auto;display:flex;align-items:center;gap:8px;border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:0 14px;height:40px;min-width:0;flex:0 1 280px}
.fsearch input{border:0;outline:0;background:transparent;min-width:0;flex:1;height:100%}
.empty{padding:40px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:var(--r)}

/* Tool landing */
.crumbs{font-size:13px;color:var(--muted);padding-top:24px}
.crumbs a{color:var(--muted)}
.tool-layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:40px;padding-block:20px 60px}
.toc{position:sticky;top:calc(env(safe-area-inset-top,0px) + 84px);align-self:start;display:grid;gap:2px}
.toc b{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.toc button{all:unset;cursor:pointer;font-size:14px;padding:6px 12px;border-left:2px solid var(--line);color:var(--muted)}
.toc button:hover,.toc button.on{color:var(--ink);border-left-color:var(--accent)}
.toc .share{margin-top:18px;padding:16px;border-radius:var(--r);background:var(--surface-2);font-size:13px;color:var(--muted)}
.tool-title{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin-top:6px}
.tool-title h1{font-size:clamp(28px,4vw,40px);font-weight:700}
.tool-intro{color:var(--muted);margin-top:10px;max-width:680px;font-size:16px}
.updated{font-size:12.5px;color:var(--muted);margin-top:10px}

.calc{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);background:var(--surface);border:1px solid var(--line);border-radius:20px;overflow:hidden;margin-top:28px;box-shadow:var(--shadow)}
.calc-in{padding:28px;display:grid;gap:20px;border-right:1px solid var(--line)}
.field label{display:flex;justify-content:space-between;align-items:center;font-size:13.5px;font-weight:500;margin-bottom:8px}
.inbox{display:flex;align-items:center;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--bg);overflow:hidden}
.inbox:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.inbox span{padding:0 12px;color:var(--muted);font-size:14px;white-space:nowrap}
.inbox input,.inbox select{border:0;outline:0;background:transparent;height:46px;flex:1;min-width:0;padding:0 12px;font-size:16px;font-weight:600}
.inbox select{font-weight:500;font-size:14px;flex:none;border-right:1px solid var(--line);cursor:pointer}
.seg{display:inline-flex;background:var(--surface-2);border-radius:999px;padding:3px}
.seg button{border:0;background:transparent;padding:4px 12px;border-radius:999px;font-size:12.5px;cursor:pointer;color:var(--muted)}
.seg button.on{background:var(--surface);color:var(--ink);font-weight:600;box-shadow:0 1px 2px rgba(0,0,0,.1)}
.calc-out{padding:28px;background:linear-gradient(180deg,var(--brand-soft),transparent 70%);display:flex;flex-direction:column;gap:18px}
.res-main span{font-size:13px;color:var(--muted);font-weight:500}
.res-main b{display:block;font-size:clamp(34px,4.6vw,46px);font-weight:700;letter-spacing:-.03em;line-height:1.1;color:var(--ink)}
.res-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.res-grid div{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);padding:12px 14px}
.res-grid span{font-size:12px;color:var(--muted)}
.res-grid b{display:block;font-size:17px;font-weight:600}
.donut-wrap{display:grid;grid-template-columns:150px 1fr;gap:18px;align-items:center}
.donut-wrap canvas{max-width:150px;max-height:150px}
.split{display:grid;gap:10px;font-size:13.5px}
.split div{display:flex;justify-content:space-between;gap:10px}
.runtime{display:flex;flex-wrap:wrap;gap:8px 18px;font-family:var(--mono);font-size:11.5px;color:var(--muted);border-top:1px dashed var(--line);padding-top:12px;margin-top:auto}
.runtime i{font-style:normal;color:var(--good)}

.block{margin-top:56px;scroll-margin-top:90px}
.block h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;margin-bottom:10px}
.block > p{color:var(--muted);max-width:680px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px;margin-top:20px}
.chart-box{position:relative;height:320px}
.tbl-wrap{overflow-x:auto;margin-top:20px;border:1px solid var(--line);border-radius:var(--r)}
table{width:100%;border-collapse:collapse;font-size:14px;background:var(--surface)}
th,td{padding:11px 16px;text-align:right;white-space:nowrap}
th:first-child,td:first-child{text-align:left}
thead th{background:var(--surface-2);font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:600}
tbody tr+tr td{border-top:1px solid var(--line)}
.bar-cell{display:inline-block;height:6px;border-radius:3px;background:var(--brand);vertical-align:middle;margin-left:8px}

.formula{background:var(--hero-bg);color:var(--hero-fg);border-radius:var(--r);padding:28px;margin-top:20px;overflow-x:auto}
.formula .eq{font-family:var(--mono);font-size:clamp(17px,2.4vw,24px);display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.frac{display:inline-flex;flex-direction:column;align-items:center}
.frac span:first-child{border-bottom:2px solid var(--hero-muted);padding:0 8px 4px}
.frac span:last-child{padding:4px 8px 0}
.formula .eq b{color:var(--accent)}
.vars{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px}
.vars div{border:1px solid var(--hero-line);border-radius:var(--r-sm);padding:12px 14px;font-size:13px;color:var(--hero-muted)}
.vars b{font-family:var(--mono);color:var(--hero-fg);font-size:15px;display:block}

.examples{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:20px}
.ex{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px;display:flex;flex-direction:column;gap:12px}
.ex h3{font-size:16px;font-weight:600}
.ex .tag{font-size:12px;color:var(--muted)}
.ex ol{margin:0;padding-left:18px;font-size:13px;font-family:var(--mono);color:var(--muted);display:grid;gap:4px}
.ex .ans{font-size:22px;font-weight:700;color:var(--brand)}
.ex .ans small{font-size:12.5px;font-weight:500;color:var(--muted)}

.steps{display:grid;gap:14px;margin-top:20px;counter-reset:s}
.step{display:grid;grid-template-columns:44px 1fr;gap:16px;align-items:start;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px}
.step::before{counter-increment:s;content:counter(s);width:44px;height:44px;border-radius:12px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;font-weight:700;font-size:18px}
.step h3{font-size:15.5px;font-weight:600}
.step p{font-size:14px;color:var(--muted);margin-top:2px}

.faq{margin-top:20px;display:grid;gap:10px}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:0 20px}
.faq summary{cursor:pointer;list-style:none;padding:17px 0;font-weight:600;font-size:15px;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;line-height:1;color:var(--accent);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding-bottom:18px;color:var(--muted);font-size:14.5px}

/* About */
.about-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;padding-block:20px 60px}
.prose p{margin-bottom:16px;color:var(--ink);max-width:640px}
.prose h2{font-size:24px;margin:34px 0 12px}
.principles{display:grid;gap:14px}
.principle{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px}
.principle h3{font-size:15.5px;font-weight:600}
.principle p{font-size:14px;color:var(--muted);margin-top:4px}
.copybox{display:flex;align-items:center;gap:10px;background:var(--surface-2);border-radius:var(--r-sm);padding:10px 14px;font-family:var(--mono);font-size:14px;margin-top:10px}
.copybox span{flex:1;user-select:all;min-width:0;overflow-wrap:anywhere}

/* Admin */
.admin{display:grid;grid-template-columns:230px minmax(0,1fr);min-height:calc(100vh - 64px)}
.side{background:var(--surface);border-right:1px solid var(--line);padding:24px 14px;display:flex;flex-direction:column;gap:4px}
.side b{font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);padding:0 12px 10px}
.side button{all:unset;cursor:pointer;display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;font-size:14px;font-weight:500;color:var(--muted)}
.side button:hover{background:var(--surface-2);color:var(--ink)}
.side button.on{background:var(--brand-soft);color:var(--brand)}
.side svg{width:18px;height:18px}
.side .note{margin-top:auto;font-size:12px;color:var(--muted);padding:12px;border-radius:10px;background:var(--surface-2)}
.adm-main{padding:28px max(16px,env(safe-area-inset-right,0px)) 60px 32px;min-width:0}
.adm-head{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.adm-head h1{font-size:26px;font-weight:700}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px}
.kpi span{font-size:12.5px;color:var(--muted)}
.kpi b{display:block;font-size:28px;font-weight:700;letter-spacing:-.02em}
.kpi small{font-size:12px;color:var(--muted)}
.adm-cols{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:16px;margin-top:16px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px;min-width:0}
.card h3{font-size:15px;font-weight:600;margin-bottom:12px}
.list{display:grid}
.list .li{display:flex;align-items:center;gap:12px;padding:11px 0;border-top:1px solid var(--line);font-size:14px}
.list .li:first-child{border-top:0}
.list .li .t{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.score{font-family:var(--mono);font-weight:600;font-size:13px;width:44px;text-align:right}
.linkbtn{all:unset;cursor:pointer;color:var(--brand);font-weight:500;font-size:13px}
.linkbtn:hover{text-decoration:underline}

.editor{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:18px}
.form{display:grid;gap:14px}
.form label{font-size:13px;font-weight:500;display:flex;justify-content:space-between;margin-bottom:6px}
.form label small{color:var(--muted);font-weight:400}
.form input,.form select,.form textarea{width:100%;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--bg);padding:10px 12px;outline:0;font-size:14.5px}
.form input:focus,.form textarea:focus,.form select:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.form textarea{min-height:300px;font-family:var(--mono);font-size:13.5px;line-height:1.6;resize:vertical}
.two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.seo-ring{display:flex;align-items:center;gap:16px;margin-bottom:14px}
.seo-ring .ring{width:78px;height:78px}
.seo-ring .ring::after{inset:9px;background:var(--surface)}
.seo-ring .ring span{font-size:20px;font-weight:700}
.checks{display:grid;gap:8px;font-size:13px}
.checks div{display:flex;gap:10px;align-items:flex-start}
.checks i{font-style:normal;flex:none;width:18px;height:18px;border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:700;margin-top:1px}
.ok i{background:var(--good-soft);color:var(--good)}
.wn i{background:var(--warn-soft);color:var(--warn)}
.no i{background:var(--bad-soft);color:var(--bad)}
.serp{border:1px solid var(--line);border-radius:var(--r-sm);padding:14px;background:var(--bg);font-family:Arial,sans-serif}
.serp .u{font-size:12.5px;color:var(--muted)}
.serp .h{font-size:18px;color:#3b6fd8;margin:3px 0;line-height:1.3;overflow-wrap:anywhere}
:root[data-theme="dark"] .serp .h{color:#8AB4F8}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .serp .h{color:#8AB4F8}}
.serp .d{font-size:13px;color:var(--muted);overflow-wrap:anywhere}
.sugg{display:grid;gap:6px}
.sugg button{all:unset;cursor:pointer;display:flex;justify-content:space-between;gap:10px;font-size:13px;padding:8px 10px;border-radius:8px;border:1px dashed var(--line)}
.sugg button:hover{border-color:var(--brand);color:var(--brand)}
.drop{border:2px dashed var(--line);border-radius:var(--r);padding:26px;text-align:center;color:var(--muted);font-size:14px;cursor:pointer;display:block}
.drop:hover{border-color:var(--brand)}
.drop input{display:none}
.code{font-family:var(--mono);font-size:12.5px;background:var(--hero-bg);color:var(--hero-fg);border-radius:var(--r-sm);padding:14px;overflow-x:auto;white-space:pre;margin-top:10px}

.toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom,0px));transform:translate(-50%,20px);background:var(--ink);color:var(--bg);padding:11px 20px;border-radius:999px;font-size:14px;font-weight:500;opacity:0;pointer-events:none;transition:.25s;z-index:80}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* Generic tool template */
.g-in{grid-template-columns:repeat(2,minmax(0,1fr));align-content:start}
.g-in .full,.g-in > .btn{grid-column:1/-1}
.calc.wide{grid-template-columns:1fr}
.calc.wide .calc-in{border-right:0;border-bottom:1px solid var(--line)}
.field small{color:var(--muted);font-weight:400;font-size:12px}
.field textarea{width:100%;min-height:190px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--bg);padding:12px 14px;outline:0;font-family:var(--mono);font-size:13.5px;line-height:1.6;resize:vertical}
.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.inbox input[type=date]{font-size:15px}
.check{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:500;cursor:pointer;padding:10px 12px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--bg)}
.check input{width:18px;height:18px;accent-color:var(--brand)}
.res-sub{font-size:14px;color:var(--muted);margin-top:-8px}
.outbox{font-family:var(--mono);font-size:13px;line-height:1.6;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);padding:14px;white-space:pre-wrap;overflow-wrap:anywhere;max-height:340px;overflow:auto;margin:0}
.outbox.pw{font-size:20px;font-weight:600;letter-spacing:.04em;text-align:center}
.out-actions{display:flex;gap:8px;flex-wrap:wrap}
.err{background:var(--bad-soft);color:var(--bad);border-radius:var(--r-sm);padding:12px 14px;font-size:14px;font-weight:500}
.gauge{position:relative;padding-top:16px}
.gbar,.glab{display:flex}
.gbar{height:10px;border-radius:5px;overflow:hidden}
.glab div{font-size:11.5px;color:var(--muted);text-align:center;padding-top:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.gmark{position:absolute;top:0;width:0;height:0;border-left:7px solid transparent;border-right:7px solid transparent;border-top:10px solid var(--ink);transform:translateX(-7px);transition:left .3s}
.ex .sum{font-size:13px;color:var(--muted);display:grid;gap:2px}
.ex .sum b{color:var(--ink);font-weight:500}

/* Tool landing hero */
.tool-hero{background:var(--hero-bg);color:var(--hero-fg);position:relative;overflow:hidden}
.tool-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--hero-line) 1px,transparent 1px),linear-gradient(90deg,var(--hero-line) 1px,transparent 1px);background-size:44px 44px;opacity:.5;mask-image:radial-gradient(ellipse at 80% 30%,#000 0%,transparent 70%);-webkit-mask-image:radial-gradient(ellipse at 80% 30%,#000 0%,transparent 70%)}
.tool-hero .wrap{position:relative;padding-block:24px 124px}
.tool-hero .crumbs{color:var(--hero-muted);padding-top:0}
.tool-hero .crumbs a{color:var(--hero-muted)}
.tool-hero .crumbs a:hover{color:var(--hero-fg)}
.tool-hero .tool-title{margin-top:30px;gap:18px;flex-wrap:nowrap;position:relative}
.tool-hero .eyebrow{color:#5ED6CC;margin-bottom:4px}
.tool-hero h1{color:var(--hero-fg);font-size:clamp(30px,4.6vw,50px);letter-spacing:-.035em}
.tool-hero .tool-intro{color:var(--hero-muted);font-size:17px;max-width:640px;margin-top:16px;position:relative}
.tglyph{width:68px;height:68px;flex:none;border-radius:20px;display:grid;place-items:center;font-family:var(--mono);font-weight:600;font-size:17px;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;position:relative}
.badges span{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:500;color:var(--hero-fg);border:1px solid var(--hero-line);background:var(--hero-card);border-radius:999px;padding:6px 13px}
.badges span::before{content:"";width:6px;height:6px;border-radius:50%;background:#5ED6CC}
.hero-glyph{position:absolute;right:max(16px,env(safe-area-inset-right,0px));top:44%;transform:translateY(-50%);font-family:var(--mono);font-weight:600;font-size:clamp(110px,15vw,210px);line-height:1;letter-spacing:-.05em;color:var(--hero-line);pointer-events:none;white-space:nowrap}
.tool-main .tool-layout{grid-template-columns:minmax(0,1fr);padding-top:0}
.tool-main .calc{margin-top:-92px;position:relative;box-shadow:0 2px 4px rgba(13,27,42,.06),0 28px 70px rgba(13,27,42,.16)}
.block .eyebrow{margin-bottom:6px}
.steps{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.step{grid-template-columns:1fr;gap:14px}
.faq{max-width:880px}
@media (max-width:760px){.hero-glyph{display:none}.tglyph{width:54px;height:54px;border-radius:16px;font-size:14px}.tool-hero .wrap{padding-block:18px 110px}}

@media (max-width:980px){
  .hero .wrap{grid-template-columns:1fr;gap:36px;padding-block:44px 52px}
  .cats{grid-template-columns:repeat(2,1fr)}
  .grid-tools,.guides,.examples{grid-template-columns:repeat(2,1fr)}
  .tool-layout{grid-template-columns:1fr}
  .toc{display:none}
  .calc{grid-template-columns:1fr}
  .calc-in{border-right:0;border-bottom:1px solid var(--line)}
  .foot{grid-template-columns:1fr 1fr}
  .about-grid{grid-template-columns:1fr}
  .admin{grid-template-columns:1fr}
  .side{flex-direction:row;overflow-x:auto;border-right:0;border-bottom:1px solid var(--line);padding:10px max(16px,env(safe-area-inset-left,0px))}
  .side b,.side .note{display:none}
  .side button{white-space:nowrap}
  .adm-main{padding:22px max(16px,env(safe-area-inset-right,0px)) 50px max(16px,env(safe-area-inset-left,0px))}
  .kpis{grid-template-columns:repeat(2,1fr)}
  .adm-cols,.editor{grid-template-columns:1fr}
  .vars{grid-template-columns:1fr 1fr}
}
@media (max-width:600px){
  .cats,.grid-tools,.guides,.examples,.why,.vars,.two,.g-in{grid-template-columns:1fr}
  .donut-wrap{grid-template-columns:110px 1fr}
  .donut-wrap canvas{max-width:110px;max-height:110px}
  .fsearch{margin-left:0;flex:1 1 100%}
  .cta{padding:28px}
  .chart-box{height:260px}
  section.band{padding-block:52px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}