/* KitRoost design system — vanilla, zero deps
   Layer 1: base + tool pages. Layer 2: sticky chips, share, back-to-top, print.
   Layer 3: home page (index) layout. Tool-page rules are unchanged by Layer 3. */
:root{
  --bg:#f7f5f0; --surface:#ffffff; --surface2:#efece5; --ink:#1c1917; --muted:#6b645c;
  --accent:#c2410c; --accent2:#ea580c; --accent-soft:#fff1ea; --line:#e4dfd6;
  --ok:#166534; --warn:#92400e; --radius:14px;
  --shadow:0 1px 2px rgba(28,25,23,.06),0 8px 24px rgba(28,25,23,.08);
}
html[data-theme="dark"]{
  --bg:#14110f; --surface:#1e1a17; --surface2:#26211d; --ink:#f4f1ec; --muted:#a89f94;
  --accent:#fb923c; --accent2:#f97316; --accent-soft:#2a1c12; --line:#322b25;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.5);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:118px}
body{margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased}
a{color:var(--accent2);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.toolmain{max-width:760px;margin:0 auto;padding:0 20px 48px}

/* header */
.site-head{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.site-head .bar{display:flex;align-items:center;gap:16px;height:58px}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;font-size:20px;letter-spacing:-.3px;color:var(--ink)}
.logo:hover{text-decoration:none}
.logo .mark{font-size:22px}
.nav{margin-left:auto;display:flex;gap:14px;align-items:center}
.nav a{color:var(--muted);font-weight:600;font-size:14px}
.theme-btn{border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:99px;
  padding:6px 12px;font-size:13px;font-weight:600;cursor:pointer}

/* hero */
.hero{padding:44px 0 26px;text-align:center}
.hero h1{font-size:clamp(28px,5vw,44px);letter-spacing:-1px;margin:0 0 10px;line-height:1.12}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero p{color:var(--muted);font-size:18px;max-width:560px;margin:0 auto 22px}
.searchbox{max-width:520px;margin:0 auto;position:relative}
.searchbox input{width:100%;padding:14px 18px;border-radius:99px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink);font-size:16px;box-shadow:var(--shadow)}
.searchbox input:focus{outline:2px solid var(--accent2);outline-offset:1px}

/* chips */
.chips{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin:20px 0 6px}
.chip{border:1px solid var(--line);background:var(--surface);color:var(--muted);border-radius:99px;
  padding:7px 14px;font-size:13px;font-weight:700;cursor:pointer}
.chip.active{background:var(--accent-soft);border-color:var(--accent2);color:var(--accent)}

/* tool cards */
.section{padding:26px 0 4px}
.section h2{font-size:21px;letter-spacing:-.4px;margin:18px 0 12px;display:flex;align-items:center;gap:10px}
.section h2 .sec-mark{font-size:20px}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.tool-card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 18px 16px;box-shadow:var(--shadow);color:var(--ink)}
.tool-card:hover{text-decoration:none;border-color:var(--accent2);transform:translateY(-1px)}
.tool-card .t-name{font-weight:750;font-size:15.5px;letter-spacing:-.2px;display:block}
.tool-card .t-desc{color:var(--muted);font-size:13.5px;display:block;margin-top:4px;line-height:1.45}
.tool-card .badge{display:inline-block;margin-top:10px;font-size:11px;font-weight:800;letter-spacing:.4px;
  color:var(--accent);background:var(--accent-soft);border-radius:99px;padding:3px 9px}
.tool-card.hidden{display:none}

/* tool page */
.tool-head{padding:34px 0 6px;display:flex;flex-direction:column}
.tool-head h1{font-size:clamp(24px,4vw,32px);letter-spacing:-.6px;margin:0 0 8px;line-height:1.15;order:2}
.tool-head .sub{color:var(--muted);font-size:16px;margin:0;order:3}
.crumbs{order:1;font-size:12.5px;color:var(--muted);margin-bottom:10px;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.crumbs a{color:var(--muted);font-weight:600}
.crumbs a:hover{color:var(--accent);text-decoration:none}
.crumbs .sep{color:var(--line);font-weight:700}
.crumbs .cur{color:var(--muted);opacity:.8}
.fav-btn{order:1;align-self:flex-end;margin:0 0 6px;border:1px solid var(--line);background:var(--surface);
  color:var(--muted);border-radius:99px;padding:5px 12px;font-size:12.5px;font-weight:700;cursor:pointer}
.fav-btn:hover{border-color:var(--accent2);color:var(--accent)}
.fav-btn.on{background:var(--accent-soft);border-color:var(--accent2);color:var(--accent)}

/* index: live search count, favorites + recently-used strips */
.search-count{font-size:13px;color:var(--muted);text-align:center;margin:10px 0 0;min-height:1em}
.search-count.is-empty{color:var(--accent);font-weight:650}
.kr-strip{padding:18px 0 4px;border-bottom:1px dashed var(--line);margin-bottom:6px}
.kr-strip h2{font-size:16px;letter-spacing:-.2px;color:var(--muted)}
.section.hidden{display:none}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow);margin:18px 0}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:640px){.grid2,.grid3{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:5px}
.field label{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.2px}
.field input,.field select,textarea.field-in{padding:11px 12px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface2);color:var(--ink);font-size:16px;width:100%}
.field input:focus,.field select:focus,textarea.field-in:focus{outline:2px solid var(--accent2);outline-offset:1px}
.hint{font-size:12px;color:var(--muted)}
.out{background:var(--accent-soft);border:1px solid color-mix(in srgb,var(--accent2) 35%,var(--line));
  border-radius:12px;padding:16px;text-align:center;margin:14px 0 0}
.out-val{display:block;font-size:34px;font-weight:850;letter-spacing:-1px;color:var(--accent);
  font-variant-numeric:tabular-nums;line-height:1.15}
.out-cap{display:block;font-size:13px;color:var(--muted);font-weight:600;margin-top:2px}
/* A score is a number, an answer is a sentence. Long answers type as text and take a full row.
   app.js tags .out.is-prose (over 90 chars) and the grid row that holds one. */
.out.is-prose{text-align:left;padding:15px 17px}
.out.is-prose .out-val{font-size:16px;font-weight:650;letter-spacing:0;line-height:1.5;color:var(--ink)}
.out.is-prose .out-cap{margin-top:7px}
.grid3.is-prose{grid-template-columns:1fr;gap:12px}
@media(min-width:900px){.grid3.is-prose{grid-template-columns:1fr 1fr}}
.row{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.btn{display:inline-block;border:none;background:var(--accent2);color:#fff;border-radius:10px;
  padding:10px 16px;font-size:14px;font-weight:750;cursor:pointer}
.btn:hover{background:var(--accent);text-decoration:none}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--ink)}
.btn-ghost:hover{background:var(--surface2)}
table.data{width:100%;border-collapse:collapse;font-size:14px;margin:10px 0}
table.data th,table.data td{border-bottom:1px solid var(--line);padding:8px 10px;text-align:left}
table.data th{font-size:12px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted)}
.note{font-size:13.5px;color:var(--muted);background:var(--surface2);border-radius:10px;padding:12px 14px;margin:12px 0}
.disclaimer{font-size:12.5px;color:var(--muted);border-left:3px solid var(--accent2);padding:10px 14px;margin:16px 0;background:var(--surface)}
details.details{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin:16px 0}
details.details summary{font-weight:750;cursor:pointer;font-size:15px}
details.details .d-body{padding-top:10px;font-size:14.5px;color:var(--muted)}
details.details .d-body li{margin:4px 0}
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:10px}
@media(max-width:640px){.related{grid-template-columns:1fr}}
.related a{display:block;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px;font-weight:700;font-size:14px;color:var(--ink)}
.related a span{display:block;color:var(--muted);font-weight:500;font-size:12.5px;margin-top:3px}
.related a:hover{border-color:var(--accent2);text-decoration:none}
.faq h3{font-size:16px;margin:16px 0 4px}
.faq p{font-size:14.5px;color:var(--muted);margin:0 0 10px}

/* footer */
.site-foot{border-top:1px solid var(--line);margin-top:40px;padding:26px 0 34px;color:var(--muted);font-size:13px}
.site-foot .links{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:10px}
.site-foot a{color:var(--muted)}
.prose{font-size:15.5px}
.prose h2{font-size:19px;letter-spacing:-.3px}

/* accessibility + motion */
:focus-visible{outline:2px solid var(--accent2);outline-offset:2px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--surface);color:var(--ink);
  border:1px solid var(--accent2);border-radius:0 0 10px 0;padding:10px 16px;z-index:40}
.skip-link:focus{left:0}
.tool-card:focus-visible{outline:2px solid var(--accent2);outline-offset:2px}
.chip:focus-visible,.theme-btn:focus-visible,.fav-btn:focus-visible,.btn:focus-visible{outline:2px solid var(--accent2);outline-offset:2px}
.out-val{transition:color .25s ease}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .tool-card:hover{transform:none}
  .out-val{transition:none}
}

/* ── Layer 2: sticky chips, share row, back-to-top, output pulse, table polish, print ──
   Gated on html.kr-js (set by app.js) so pages without JS keep their plain layout. */
:root{color-scheme:light}
html[data-theme="dark"]{color-scheme:dark}
::selection{background:var(--accent-soft);color:var(--ink)}
.tool-card{transition:border-color .15s ease,transform .15s ease,box-shadow .15s ease}
.faq{border-top:1px dashed var(--line);padding-top:8px;margin-top:8px}

/* index: category chips stay reachable while you scroll the grid */
.kr-js .chips{position:sticky;top:58px;z-index:15;margin:20px 0 6px;padding:10px 0;
  background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line)}
.chip[aria-current="true"]{background:var(--accent-soft);border-color:var(--accent2);color:var(--accent)}

/* share row (built by app.js from canonical URL + page title) */
.share-row{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin:14px 0 0}
.share-row a{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);
  background:var(--surface);color:var(--muted);border-radius:99px;padding:7px 13px;
  font-size:12.5px;font-weight:700}
.share-row a:hover{border-color:var(--accent2);color:var(--accent);text-decoration:none}

/* back-to-top pill */
.back-top{position:fixed;right:16px;bottom:16px;z-index:25;border:1px solid var(--line);
  background:var(--surface);color:var(--ink);border-radius:99px;padding:9px 14px;
  font-size:13px;font-weight:750;cursor:pointer;box-shadow:var(--shadow);
  opacity:0;transform:translateY(8px);pointer-events:none;transition:opacity .2s ease,transform .2s ease}
.back-top.show{opacity:1;transform:none;pointer-events:auto}
.back-top:hover{border-color:var(--accent2);color:var(--accent)}

/* output pulse when a value changes */
@keyframes krpulse{0%{transform:scale(1)}35%{transform:scale(1.035)}100%{transform:scale(1)}}
.out-val.is-changed{animation:krpulse .4s ease}

/* data tables: header row, zebra, hover */
table.data tr:first-child td{font-size:12px;font-weight:800;text-transform:uppercase;
  letter-spacing:.5px;color:var(--muted);border-bottom:2px solid var(--line)}
table.data tr:nth-child(even) td{background:color-mix(in srgb,var(--surface2) 55%,transparent)}
table.data tr:hover td{background:var(--accent-soft)}

@media(prefers-reduced-motion:reduce){
  .back-top{transition:none;transform:none}
  .out-val.is-changed{animation:none}
  .tool-card{transition:none}
}

@media print{
  .site-head,.site-foot,.chips,.searchbox,.search-count,.fav-btn,.btn,.share-row,
  .back-top,.kr-strip,.related,.skip-link,.disclaimer{display:none!important}
  body{background:#fff;color:#000}
  .card,.out,details.details{box-shadow:none;border-color:#bbb}
  .toolmain{max-width:none}
}

/* ── Layer 3: home page layout (index.html, st/index.html) ──
   Tool pages keep Layer 1 spacing; nothing here changes .toolmain, .card, .out. */

/* hero: trust line + state-data pill under the search box */
.hero p.hero-trust{font-size:12.5px;font-weight:650;letter-spacing:.3px;color:var(--muted);
  margin:12px 0 0;text-align:center;max-width:520px}
.hero a.hero-hub{display:inline-block;margin:16px 0 0;border:1px solid var(--line);background:var(--surface);
  border-radius:99px;padding:9px 16px;font-size:13.5px;font-weight:700;color:var(--ink);
  box-shadow:var(--shadow)}
.hero a.hero-hub:hover{border-color:var(--accent2);color:var(--accent);text-decoration:none}

/* how many tools are in this chip / this section */
.chip-n{display:inline-block;margin-left:7px;padding:1px 6px;border-radius:99px;
  background:var(--surface2);font-size:11px;font-weight:700;color:var(--muted)}
.chip.active .chip-n,.chip[aria-current="true"] .chip-n{background:var(--surface);color:var(--accent)}
.sec-count{margin-left:auto;font-size:12px;font-weight:700;color:var(--muted);
  background:var(--surface2);border-radius:99px;padding:3px 9px;font-variant-numeric:tabular-nums}

/* cards: uniform text height so a row of cards lines up */
.tool-card .t-desc{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.tool-card .t-name{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
@media(min-width:1000px){.hero-trust{margin-top:14px}}

/* footer: brand + three link columns, legal strip underneath */
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:30px;padding-top:6px}
.fcol h3{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.6px;
  color:var(--ink);margin:0 0 10px}
.fcol .links{display:flex;flex-direction:column;gap:7px;margin:0}
.fcol .links a{font-size:13px}
.fcol-brand p{margin:10px 0 0;max-width:34ch;font-size:13px;color:var(--muted)}
.foot-legal{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);margin-top:24px;padding-top:14px;font-size:12.5px}

@media(max-width:1000px){
  .foot-grid{grid-template-columns:1fr 1fr 1fr}
  .fcol-brand{grid-column:1 / -1}
}
@media(max-width:640px){
  .hero{padding:30px 0 20px}
  .hero p{font-size:16px;margin-bottom:18px}
  .searchbox{max-width:none}
  .hero-hub{font-size:12.5px;padding:8px 13px}
  /* chips: one swipeable row beats four wrapped rows on a phone */
  .chips{flex-wrap:nowrap;overflow-x:auto;justify-content:flex-start;gap:7px;
    padding-bottom:9px;scrollbar-width:none;-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain}
  .chips::-webkit-scrollbar{display:none}
  .chip{flex:0 0 auto}
  .kr-js .chips{padding:9px 0 8px}
  .tools-grid{grid-template-columns:1fr;gap:12px}
  .section h2{font-size:19px;margin:14px 0 10px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:22px}
  .fcol-brand{grid-column:1 / -1}
  .foot-legal{flex-direction:column;gap:6px}
}