:root{
  --bg:#f5f9f7;--surface:#ffffff;--ink:#0C2B23;--muted:#4f6660;--line:#dbe7e2;
  --brand:#00805F;--brand-ink:#ffffff;--brand-soft:#e1f3ec;--mint:#00805F;--accent:#8a5f05;--accent-soft:#fcefd2;--gold:#F2B544;
  --bad:#b4442f;--bad-soft:#f9e6e2;--radius:14px;--s-a:#B97A10;--s-b:#00805F;
  --serif:"Bricolage Grotesque",system-ui,sans-serif;--sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;--mono:"IBM Plex Mono",ui-monospace,monospace;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0C2B23;--surface:#11362c;--ink:#EAF3EF;--muted:#a6c2b9;--line:#1f4a3e;
  --brand:#5ED6AE;--brand-ink:#0C2B23;--brand-soft:#16473a;--mint:#5ED6AE;--accent:#F2B544;--accent-soft:#3a3218;
  --bad:#f0907a;--bad-soft:#3d2320;--s-a:#C2851C;--s-b:#25A378;
}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 var(--sans)}
a{color:var(--brand)}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
header.site{border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-family:var(--serif);font-weight:700;font-size:1.3rem;color:var(--ink);text-decoration:none;letter-spacing:-.01em}
.logo{display:inline-flex;align-items:center;gap:8px}.logo svg{width:30px;height:30px;flex:none}.logo b{font-weight:inherit}.logo b span{color:var(--mint)}
nav a{color:var(--muted);text-decoration:none;margin-left:20px;font-size:.95rem}
nav a:hover{color:var(--ink)}
h1,h2,h3{font-family:var(--serif);font-weight:800;letter-spacing:-.02em;line-height:1.1}
.hero{padding:72px 0 48px}
.hero h1{font-size:clamp(2.1rem,5.5vw,3.4rem);margin:0 0 16px;max-width:15ch}
.hero p.lead{font-size:1.15rem;color:var(--muted);max-width:56ch;margin:0 0 28px}
.btn{display:inline-block;background:var(--brand);color:var(--brand-ink);padding:12px 20px;border-radius:10px;text-decoration:none;font-weight:600;border:0;cursor:pointer;font-size:1rem}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn-row{display:flex;gap:12px;flex-wrap:wrap}
.bio{display:flex;gap:16px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin-top:40px;max-width:720px}
.bio .mark{flex:none;width:44px;height:44px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-family:var(--serif);font-weight:700}
.bio p{margin:0;color:var(--muted);font-size:.97rem}
.bio strong{color:var(--ink)}
section.tools{padding:40px 0}
section.tools h2{font-size:1.7rem;margin:0 0 4px}
section.tools .sub{color:var(--muted);margin:0 0 20px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;display:flex;flex-direction:column;gap:8px;text-decoration:none;color:inherit;transition:border-color .15s,transform .15s}
a.card:hover{border-color:var(--brand);transform:translateY(-2px)}
.card h3{font-size:1.12rem;margin:0}
.card p{margin:0;color:var(--muted);font-size:.94rem;flex:1}
.tags{display:flex;gap:6px;flex-wrap:wrap}
.tag{font-size:.74rem;font-weight:600;padding:3px 9px;border-radius:999px;text-transform:uppercase;letter-spacing:.04em}
.tag.free{background:var(--brand-soft);color:var(--brand)}
.tag.paid{background:var(--accent-soft);color:var(--accent)}
.tag.soon{background:transparent;color:var(--muted);border:1px solid var(--line)}
.card.dim{opacity:.72}
.card .go{font-weight:600;color:var(--brand);font-size:.92rem}
footer.site{border-top:1px solid var(--line);margin-top:56px;padding:28px 0 40px;color:var(--muted);font-size:.9rem}
footer.site .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer .note{font-weight:600;color:var(--ink)}

/* calculator */
.calc-head{padding:48px 0 20px}
.calc-head h1{font-size:clamp(1.8rem,4.5vw,2.6rem);margin:0 0 10px}
.calc-head p{color:var(--muted);max-width:62ch;margin:0}
.calc{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);gap:20px;align-items:start}
@media (max-width:820px){.calc{grid-template-columns:1fr}}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.panel h2{font-size:1.15rem;margin:0 0 14px}
.field{margin-bottom:14px}
.field label{display:block;font-size:.88rem;font-weight:600;margin-bottom:5px}
.field .hint{font-size:.8rem;color:var(--muted);margin-top:4px}
.inp{display:flex;align-items:center;border:1px solid var(--line);border-radius:10px;background:var(--bg);overflow:hidden}
.inp span{padding:0 10px;color:var(--muted);font-size:.92rem}
.inp input{flex:1;min-width:0;width:100%;border:0;background:transparent;color:var(--ink);font:inherit;padding:10px 10px 10px 2px;outline:none}
.inp input:first-child{padding-left:12px}
.inp:focus-within{border-color:var(--brand)}
.row2{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px}
.seg{display:flex;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.seg button{flex:1;border:0;background:var(--bg);color:var(--muted);font:inherit;font-size:.88rem;padding:9px 6px;cursor:pointer}
.seg button.on{background:var(--brand);color:var(--brand-ink);font-weight:600}
.check{display:flex;gap:8px;align-items:center;font-size:.88rem}
.verdict{border-radius:12px;padding:16px 18px;margin-bottom:16px}
.verdict.good{background:var(--brand-soft)}
.verdict.meh{background:var(--accent-soft)}
.verdict.bad{background:var(--bad-soft)}
.verdict .big{font-family:var(--serif);font-size:1.6rem;font-weight:700;line-height:1.2}
.verdict.good .big{color:var(--brand)}.verdict.meh .big{color:var(--accent)}.verdict.bad .big{color:var(--bad)}
.verdict p{margin:6px 0 0;font-size:.94rem}
.stats{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:16px}
.stat{border:1px solid var(--line);border-radius:10px;padding:12px}
.stat .k{font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.stat .v{font-family:var(--mono);font-size:1.05rem;font-weight:600;font-variant-numeric:tabular-nums}
canvas{width:100%;height:220px;display:block}
.chart-cap{font-size:.8rem;color:var(--muted);margin-top:6px}
.notes{margin-top:28px}
.notes h2{font-size:1.3rem}
.notes ul{padding-left:20px;color:var(--muted)}
.notes li{margin-bottom:8px}
.cta{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin-top:24px;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.cta p{margin:0;max-width:52ch}

/* featured paid tool */
.feature{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:28px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px;margin:8px 0 8px}
@media (max-width:820px){.feature{grid-template-columns:1fr;padding:20px}}
.feature h2{font-size:clamp(1.5rem,3.5vw,2rem);margin:12px 0 8px}
.feature .sub{color:var(--muted);margin:0 0 14px}
.feature .sub strong{color:var(--ink)}
.was{font-size:.85rem;color:var(--muted);text-decoration:line-through;align-self:center}
.ticks{list-style:none;padding:0;margin:0 0 20px}
.ticks li{position:relative;padding-left:28px;margin-bottom:8px}
.ticks li::before{content:"";position:absolute;left:0;top:.35em;width:16px;height:16px;border-radius:50%;background:var(--brand-soft);box-shadow:inset 0 0 0 5px var(--brand-soft),inset 0 0 0 16px var(--brand)}
.fine{font-size:.85rem;color:var(--muted);margin:12px 0 0}
.feature-ex{background:var(--brand-soft);border-radius:12px;padding:22px}
.feature-ex p{margin:6px 0 16px}
.feature-ex .k,.exrow .k{font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.exrow{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.exrow .v{font-family:var(--mono);font-size:1.5rem;font-weight:600;color:var(--brand)}

/* two-series chart */
.hurdle{border:1px dashed var(--line);border-radius:10px;padding:12px 14px;margin-bottom:16px;font-size:.94rem;color:var(--muted)}
.hurdle .k{display:block;font-size:.78rem;text-transform:uppercase;letter-spacing:.04em}
.hurdle strong{font-family:var(--mono);font-size:1.3rem;color:var(--ink);margin-right:4px}
.legend{display:flex;gap:16px;font-size:.85rem;color:var(--muted);margin-bottom:6px}
.legend span{display:inline-flex;align-items:center;gap:6px}
.sw{display:inline-block;width:14px;height:3px;border-radius:2px}
.sw-a{background:var(--s-a)}.sw-b{background:var(--s-b)}
.chart-wrap{position:relative}
.tip{position:absolute;top:0;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:8px 10px;font-size:.8rem;pointer-events:none;box-shadow:0 4px 14px rgba(0,0,0,.12);display:flex;flex-direction:column;gap:2px;white-space:nowrap}
.tip[hidden]{display:none}
.tip span{display:flex;align-items:center;gap:6px;color:var(--muted)}
.tip em{font-style:normal;font-family:var(--mono);color:var(--ink);margin-left:auto;padding-left:10px}
.inp select{flex:1;min-width:0;width:100%;border:0;background:transparent;color:var(--ink);font:inherit;padding:10px 12px;outline:none;appearance:auto}
.tag.new{background:var(--accent-soft);color:var(--accent)}
.row3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.ch-title{font-size:1rem;margin:4px 0 6px}
details.more{border-top:1px solid var(--line);padding-top:12px;margin-top:4px}
details.more summary{cursor:pointer;font-weight:600;font-size:.92rem;color:var(--brand);margin-bottom:12px}
section.related{margin-top:28px}
section.related h2{font-size:1.3rem}