/* Frequency Friday · Toolbox. White page, black type, FF blue. Prism only as a small accent. */
@font-face{font-family:"DMSerif";src:url(fonts/DMSerifDisplay-Regular.woff2) format("woff2");font-display:swap}
@font-face{font-family:"DMSerif";font-style:italic;src:url(fonts/DMSerifDisplay-Italic.woff2) format("woff2");font-display:swap}
@font-face{font-family:"Lexend";font-weight:100 900;src:url(fonts/Lexend.woff2) format("woff2");font-display:swap}
@font-face{font-family:"Space Mono";src:url(fonts/SpaceMono-Regular.woff2) format("woff2");font-display:swap}
@font-face{font-family:"Space Mono";font-weight:700;src:url(fonts/SpaceMono-Bold.woff2) format("woff2");font-display:swap}
:root{
  --blue:#0060FF; --blue-d:#004fd1; --ink:#000; --ink2:#2b2d33; --ink3:#5c606b; --paper:#fff; --soft:#f4f5f7; --line:#000;
  --iri:linear-gradient(100deg,#0060ff 0%,#9a7bff 50%,#8feaff 100%);
  --serif:"DMSerif",Georgia,serif; --sans:"Lexend",system-ui,-apple-system,sans-serif; --mono:"Space Mono",ui-monospace,Menlo,monospace;
  --pad:20px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:76px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-weight:400;font-size:17px;line-height:1.5;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:var(--blue)}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:6px}
.wrap{max-width:1120px;margin:0 auto;padding:0 var(--pad)}
.skip{position:absolute;left:-9999px;top:0;background:#000;color:#fff;padding:10px 14px;z-index:100}
.skip:focus{left:10px;top:10px}
.noscript{padding:40px var(--pad)}

/* header */
.bar{background:#000;color:#fff}
.bar-in{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:calc(12px + env(safe-area-inset-top,0px));padding-bottom:12px}
.brand img{width:118px;height:auto}
.home{font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:#fff;text-decoration:none;border:1.5px solid rgba(255,255,255,.55);border-radius:99px;padding:7px 12px;white-space:nowrap}
.home:hover{border-color:#fff}

/* hero */
.hero{padding-top:34px;padding-bottom:22px}
.kicker{display:flex;align-items:center;gap:9px;font-family:var(--mono);font-weight:700;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink);margin:0 0 12px}
.kicker img{width:22px;height:auto}
.hero h1{font-family:var(--serif);font-weight:400;font-size:clamp(64px,19vw,140px);line-height:.9;letter-spacing:-.02em;margin:0}
.hero h1 em{font-style:italic;color:var(--blue)}
.prism-rule{display:block;width:72px;height:5px;border-radius:5px;background:var(--iri);margin:20px 0 18px}
.lead{font-size:20px;line-height:1.45;color:var(--ink2);margin:0;max-width:34ch}

/* jump chips */
.chips{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.97);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-top:1.5px solid #000;border-bottom:1.5px solid #000}
.chips-in{max-width:1120px;margin:0 auto;display:flex;gap:8px;overflow-x:auto;padding:10px var(--pad);scrollbar-width:none;-webkit-overflow-scrolling:touch}
.chips-in::-webkit-scrollbar{display:none}
.chip{flex:0 0 auto;display:inline-flex;align-items:center;gap:7px;font-weight:600;font-size:16px;color:#000;text-decoration:none;border:1.5px solid #000;border-radius:99px;padding:9px 15px;min-height:44px;transition:background .15s,color .15s}
.chip b{font-family:var(--mono);font-size:11px;font-weight:700;color:var(--blue)}
.chip:hover{background:var(--soft)}
.chip.on{background:var(--blue);border-color:var(--blue);color:#fff}
.chip.on b{color:#fff}

/* shelves */
.shelf{padding:40px 0 10px}
.shelf + .shelf{border-top:1.5px solid #000;margin-top:30px}
.shelf-head{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:20px}
.num{font-family:var(--mono);font-weight:700;font-size:13px;letter-spacing:.12em;color:var(--blue);margin:0 0 4px}
.shelf h2{font-family:var(--serif);font-weight:400;font-size:clamp(46px,13vw,76px);line-height:.95;letter-spacing:-.01em;margin:0}
.sub{font-family:var(--mono);font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink3);margin:8px 0 0}
.seeall{flex:0 0 auto;font-weight:600;font-size:16px;color:var(--blue);text-decoration:none;border-bottom:2px solid var(--blue);padding-bottom:2px;margin-bottom:6px;white-space:nowrap}
.seeall:hover{color:var(--blue-d);border-color:var(--blue-d)}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:start}
.grid > .card{grid-column:1 / -1}
.grid > .card.ph{grid-column:auto}
.grid > .card.ph.wide{grid-column:1 / -1}
.arr{margin-left:6px}

/* cards */
.card{position:relative;background:#fff;border:2px solid #000;border-radius:18px;overflow:hidden;display:flex;flex-direction:column}
.card-in{padding:18px 18px 18px;display:flex;flex-direction:column;flex:1}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
.tag{font-family:var(--mono);font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;border:1.5px solid #000;border-radius:99px;padding:3px 9px;color:#000;display:inline-flex;align-items:center;gap:5px}
.tag.ff{background:#000;color:#fff}
.tag svg{width:13px;height:13px;fill:currentColor}
.badge{font-family:var(--mono);font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#fff;border-radius:99px;padding:3px 10px;border:2px solid transparent;background:linear-gradient(#000,#000) padding-box,var(--iri) border-box}
.logo.dark{background:#000;object-fit:contain;padding:5px}
.why.why-ph{color:var(--ink3);font-style:italic}
.row-block{margin-top:22px}
.row-h{display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;margin:0 0 12px}
.row-h::before{content:"";width:16px;height:4px;border-radius:4px;background:var(--iri)}
.name-row{display:flex;align-items:center;gap:12px}
.logo{width:52px;height:52px;border-radius:12px;object-fit:cover;flex:0 0 auto;border:1.5px solid #000}
.name{font-family:var(--sans);font-weight:700;font-size:24px;line-height:1.15;letter-spacing:-.01em;margin:0}
.why{margin:10px 0 16px;color:var(--ink2);font-size:17px;line-height:1.45}
.why-k{display:block;font-family:var(--mono);font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--ink3);margin-bottom:3px}
.go{margin-top:auto;align-self:flex-start;display:inline-flex;align-items:center;min-height:44px;font-weight:600;font-size:16px;color:#fff;background:var(--blue);text-decoration:none;border-radius:99px;padding:10px 18px}
.go:hover{background:var(--blue-d)}
.go-empty{background:transparent;color:var(--ink3);border:1.5px dashed #9aa0ab}
.photo{border-bottom:2px solid #000;background:#000}
.photo img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}

/* placeholder */
.card.ph{border:2px dashed #9aa0ab;background:var(--soft)}
.card.ph .name{color:var(--ink3)}
.card.ph .why{color:var(--ink3);font-style:italic}
.card.ph .card-in{padding:14px 14px 14px}
.card.ph .name{font-size:18px}
.card.ph .why{font-size:14.5px;margin:6px 0 12px}
.card.ph .why-k{display:none}
.card.ph .go{min-height:36px;padding:6px 12px;font-size:14px}
.card.ph .tags{margin-bottom:8px}
.tag.ph-tag{border-color:#9aa0ab;color:var(--ink3);border-style:dashed}

/* featured FF tool */
.card.featured{background:#000;color:#fff;border-color:#000}
.card.featured .card-in{padding:24px 20px 22px}
.card.featured .name{font-family:var(--serif);font-weight:400;font-size:44px;line-height:1;letter-spacing:-.01em;color:#fff}
.card.featured .why{color:rgba(255,255,255,.86);font-size:19px}
.card.featured .why-k{color:rgba(255,255,255,.6)}
.card.featured .tag{border-color:#fff;color:#fff;background:transparent}
.card.featured .go{font-size:17px;padding:12px 22px}
.card.featured .go:hover{background:#fff;color:#000}

/* pinned home base */
.card.pinned{border-color:#000}
.card.pinned .tag.pin{background:var(--blue);border-color:var(--blue);color:#fff}
.card.pinned .name{font-family:var(--serif);font-weight:400;font-size:44px;line-height:1}

.more-note{font-family:var(--mono);font-size:13px;color:var(--ink3);margin:22px 0 0}
.crumb{padding-top:18px}
.crumb a{font-weight:600;color:#000;text-decoration:none;border-bottom:2px solid #000}
.sub-page .shelf{padding-top:20px}

/* footer */
.foot{background:#000;color:#fff;margin-top:60px;padding:36px 0 calc(36px + env(safe-area-inset-bottom,0px))}
.foot-lockup{width:150px;height:auto;margin-bottom:14px}
.foot-line{font-size:17px;line-height:1.5;margin:0 0 16px}
.foot-links{display:flex;flex-wrap:wrap;gap:18px;margin:0}
.foot-links a{color:#fff;font-weight:600;text-decoration:none;border-bottom:1.5px solid rgba(255,255,255,.6)}

@media (min-width:720px){
  :root{--pad:32px}
  .grid{grid-template-columns:repeat(2,1fr);gap:18px}
  .grid > .card,.grid > .card.ph.wide{grid-column:auto}
  .card.featured,.card.pinned{grid-column:1 / -1}
  .card.pinned{flex-direction:row}
  .card.pinned .photo{flex:0 0 55%;border-bottom:0;border-right:2px solid #000}
  .card.pinned .photo img{height:100%;aspect-ratio:auto}
  .card.featured .name{font-size:56px}
  .chips-in{justify-content:flex-start}
}
@media (min-width:1024px){
  .grid{grid-template-columns:repeat(3,1fr)}
  .card.ph .card-in{padding:18px}
  .hero{padding-top:56px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.chip{transition:none}}