:root{
  --bg:#EEF0F2;--surface:#FFFFFF;--surface-2:#F6F7F8;
  --ink:#191C20;--muted:#5C666F;--faint:#8A939C;
  --line:#DCE0E4;--line-strong:#C6CCD2;
  --accent:#8A6A22;--accent-soft:#F0E6CF;--on-accent:#FFFFFF;
  --ok:#2E7D5B;--warn:#9C6A16;--no:#B0442C;
  --shadow:0 1px 2px rgba(20,25,30,.05),0 8px 24px -12px rgba(20,25,30,.18);--ruler:#B7BEC5;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#121518;--surface:#1A1E22;--surface-2:#20262B;
  --ink:#ECEFF2;--muted:#9AA4AD;--faint:#6E7880;
  --line:#2A3138;--line-strong:#39424A;
  --accent:#D8B65F;--accent-soft:#33301F;--on-accent:#1A1400;
  --ok:#4FB387;--warn:#E0A94A;--no:#E07458;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 12px 32px -14px rgba(0,0,0,.6);--ruler:#4A555E;
}}
:root[data-theme="dark"]{
  --bg:#121518;--surface:#1A1E22;--surface-2:#20262B;
  --ink:#ECEFF2;--muted:#9AA4AD;--faint:#6E7880;
  --line:#2A3138;--line-strong:#39424A;
  --accent:#D8B65F;--accent-soft:#33301F;--on-accent:#1A1400;
  --ok:#4FB387;--warn:#E0A94A;--no:#E07458;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 12px 32px -14px rgba(0,0,0,.6);--ruler:#4A555E;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);line-height:1.55;-webkit-font-smoothing:antialiased;
  font-family:"Archivo",system-ui,-apple-system,Segoe UI,sans-serif}
.wrap{max-width:1000px;margin:0 auto;padding:0 20px}
.mono{font-family:"IBM Plex Mono",ui-monospace,Menlo,monospace;font-variant-numeric:tabular-nums}
a{color:inherit}
h1,h2,h3,h4{font-family:"Fraunces",Georgia,serif;font-weight:500;letter-spacing:-.01em;text-wrap:balance}

/* header */
.site{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 90%,transparent);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;height:58px;gap:16px}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;letter-spacing:.14em;font-size:.82rem;text-decoration:none;text-transform:uppercase}
.brand .mark{color:var(--accent);font-size:1.1rem}
.mainnav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.mainnav a{font-size:.82rem;color:var(--muted);text-decoration:none;padding:6px 9px;border-radius:7px;font-weight:500}
.mainnav a:hover{color:var(--ink);background:var(--surface-2)}
.theme-btn{border:1px solid var(--line-strong);background:var(--surface);color:var(--muted);width:34px;height:32px;
  border-radius:8px;cursor:pointer;display:grid;place-items:center;margin-left:4px}
.theme-btn:hover{color:var(--ink);border-color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* breadcrumb */
.crumbs{font-size:.8rem;color:var(--faint);padding:16px 0 0;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.crumbs a{color:var(--muted);text-decoration:none}.crumbs a:hover{color:var(--accent)}
.crumbs .sep{opacity:.5}

/* hero + finder */
.hero{padding:44px 0 8px;text-align:center}
.eyebrow{font-size:.72rem;letter-spacing:.24em;text-transform:uppercase;color:var(--accent);font-weight:600;margin:0}
.hero h1{font-size:clamp(2rem,5.2vw,3.2rem);line-height:1.05;margin:.35em auto .3em;max-width:15ch}
.lede{color:var(--muted);max-width:56ch;margin:0 auto;font-size:1.03rem}
.finder{background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:18px;margin:22px auto 0;max-width:760px;text-align:left}
.search-row{position:relative}
.search-row input{width:100%;font-family:inherit;font-size:1.05rem;color:var(--ink);background:var(--surface-2);
  border:1px solid var(--line-strong);border-radius:11px;padding:14px 44px;outline:none}
.search-row input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.search-ic{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:var(--faint)}
.clear-ic{position:absolute;right:10px;top:50%;transform:translateY(-50%);border:0;background:none;color:var(--faint);cursor:pointer;font-size:1.05rem;display:none}
.chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:13px}
.chip{font-size:.8rem;font-weight:500;padding:6px 12px;border-radius:999px;cursor:pointer;border:1px solid var(--line-strong);
  background:transparent;color:var(--muted);font-family:inherit}
.chip:hover{color:var(--ink);border-color:var(--accent)}
.chip[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}
.results{margin-top:14px;display:grid;grid-template-columns:repeat(auto-fill,minmax(205px,1fr));gap:8px;max-height:280px;overflow:auto;padding:2px}
.res{text-align:left;border:1px solid var(--line);background:var(--surface-2);border-radius:10px;padding:10px 12px;text-decoration:none;color:inherit;display:block}
.res:hover{border-color:var(--accent);transform:translateY(-1px)}
.res .b{font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--faint)}
.res .m{font-weight:600;font-size:.94rem;margin-top:1px}
.res .lw{color:var(--accent);font-weight:600;font-size:.8rem;margin-top:3px}
.noresults{grid-column:1/-1;text-align:center;color:var(--muted);padding:22px}

/* measure */
.home-measure,.browse{padding:40px 0;border-top:1px solid var(--line);margin-top:36px}
.home-measure h2,.browse h2{font-size:1.5rem;margin:0 0 4px}
.sub{color:var(--muted);margin:0 0 20px}.sub a{color:var(--accent)}
.measure{background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:22px;display:grid;gap:22px;max-width:760px}
.mstep{display:grid;gap:11px}
.mstep .lab{font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-weight:600}
.mstep p{margin:0;color:var(--muted);font-size:.92rem}
.cardsim{height:62px;border:2px dashed var(--accent);border-radius:9px;background:var(--accent-soft);display:grid;place-items:center;color:var(--muted);font-size:.72rem;letter-spacing:.05em}
.slider{width:100%;max-width:560px;accent-color:var(--accent)}
.calout{font-size:.8rem;color:var(--muted)}
.rulerbox{overflow-x:auto;padding-bottom:6px}
.track{position:relative;height:92px;touch-action:none;user-select:none}
.tick{position:absolute;bottom:32px;width:1px;background:var(--ruler)}
.tlab{position:absolute;bottom:4px;transform:translateX(-50%);font-family:"IBM Plex Mono",monospace;font-size:10px;color:var(--muted)}
.handle{position:absolute;top:0;width:2px;height:58px;background:var(--accent);cursor:ew-resize}
.handle::before{content:"";position:absolute;top:-2px;left:-8px;width:18px;height:18px;border-radius:50%;background:var(--accent);border:3px solid var(--surface);box-shadow:var(--shadow)}
.readout{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap}
.readout .big{font-weight:600;font-size:1.9rem;color:var(--accent)}
.readout .near{font-size:.9rem;color:var(--muted)}.readout .near b{color:var(--ink)}

/* browse pills */
.size-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.size-pill{display:flex;flex-direction:column;align-items:center;justify-content:center;width:84px;height:70px;border:1px solid var(--line);
  border-radius:12px;background:var(--surface);text-decoration:none;box-shadow:var(--shadow)}
.size-pill:hover{border-color:var(--accent)}
.size-pill b{font-family:"IBM Plex Mono",monospace;font-size:1.15rem;color:var(--accent)}
.size-pill span{font-size:.7rem;color:var(--muted)}
.brand-row{display:flex;flex-wrap:wrap;gap:8px}
.brand-pill{padding:9px 14px;border:1px solid var(--line);border-radius:999px;background:var(--surface);text-decoration:none;font-size:.88rem;font-weight:500}
.brand-pill:hover{border-color:var(--accent);color:var(--accent)}

/* watch page */
.watch{padding:8px 0 20px}
.w-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;flex-wrap:wrap;padding:14px 0 8px}
.kicker{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);font-weight:600;margin:0}
.w-head h1{font-size:clamp(1.7rem,4.4vw,2.4rem);margin:.15em 0 .35em;line-height:1.06}
.answer{font-size:1.1rem;color:var(--ink);margin:0;max-width:52ch}
.w-badge{text-align:center;padding:12px 20px;border-radius:14px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);min-width:130px}
.w-badge span{display:block;font-size:.64rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.w-badge b{font-family:"IBM Plex Mono",monospace;font-size:2.4rem;color:var(--accent);line-height:1.1}
.w-badge.integrated b{font-size:1.15rem;color:var(--warn);display:block;padding:10px 0}
table.spec{width:100%;border-collapse:collapse;margin:14px 0 6px;background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden}
table.spec th,table.spec td{text-align:left;padding:11px 16px;border-bottom:1px solid var(--line);font-size:.94rem}
table.spec th{color:var(--muted);font-weight:500;width:44%;font-family:inherit}
table.spec td{font-family:"IBM Plex Mono",monospace}
table.spec tr:last-child th,table.spec tr:last-child td{border-bottom:0}
.block,.buy,.faq,.related,.prose{padding:24px 0;border-top:1px solid var(--line);margin-top:12px}
.block h2,.buy h2,.faq h2,.related h3,.prose h2{font-size:1.3rem;margin:0 0 14px}
.styles{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:8px}
.styles li{display:flex;gap:10px;align-items:flex-start;padding:11px 13px;border:1px solid var(--line);border-radius:10px;background:var(--surface);font-size:.9rem}
.styles .dot{width:9px;height:9px;border-radius:50%;margin-top:6px;flex:none}
.styles small{display:block;color:var(--faint);font-size:.76rem}
.styles .st-ok .dot{background:var(--ok)}.styles .st-warn .dot{background:var(--warn)}.styles .st-no .dot{background:var(--no)}
.styles .st-no{opacity:.72}
.note{margin:14px 0 0;padding:11px 14px;border-radius:9px;background:var(--accent-soft);color:var(--warn);font-size:.88rem}
.buy-row{display:flex;flex-wrap:wrap;gap:10px}
.btn{flex:1;min-width:200px;text-align:center;padding:14px 18px;border-radius:11px;font-weight:600;font-size:.94rem;cursor:pointer;
  text-decoration:none;border:1px solid transparent;font-family:inherit}
.btn-primary{background:var(--accent);color:var(--on-accent)}
.btn-primary:hover{filter:brightness(1.06)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.afftag{font-size:.74rem;color:var(--faint);margin:11px 0 0}
details{background:var(--surface);border:1px solid var(--line);border-radius:11px;margin-bottom:8px;overflow:hidden}
summary{cursor:pointer;padding:14px 16px;font-weight:600;font-size:.95rem;list-style:none;display:flex;justify-content:space-between;gap:12px;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--accent);font-family:"IBM Plex Mono",monospace;font-size:1.2rem}
details[open] summary::after{content:"\2013"}
details .a{padding:0 16px 15px;color:var(--muted);font-size:.92rem}
.rel-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px;margin:0 0 16px}
.rel{border:1px solid var(--line);border-radius:10px;padding:10px 12px;text-decoration:none;background:var(--surface);display:flex;justify-content:space-between;align-items:center;gap:8px}
.rel:hover{border-color:var(--accent)}
.rel span{font-size:.86rem}.rel b{color:var(--accent);font-family:"IBM Plex Mono",monospace;font-size:.8rem}

/* list pages */
.list{display:grid;gap:7px;margin-top:18px}
.rowlink{display:flex;align-items:center;gap:12px;padding:13px 16px;border:1px solid var(--line);border-radius:11px;background:var(--surface);text-decoration:none}
.rowlink:hover{border-color:var(--accent)}
.rowlink .m{font-weight:600;flex:1}
.rowlink .r{color:var(--faint);font-size:.8rem;font-family:"IBM Plex Mono",monospace}
.rowlink b{color:var(--accent);font-family:"IBM Plex Mono",monospace;font-size:.9rem}
.prose{max-width:68ch}.prose p{color:var(--muted)}.prose h2{color:var(--ink);margin-top:22px}

/* footer */
.site-foot{border-top:1px solid var(--line);margin-top:40px;padding:34px 0 44px;background:var(--surface-2)}
.foot-cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}
.foot-cols h4{font-family:inherit;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin:0 0 10px}
.foot-cols a{display:block;color:var(--muted);text-decoration:none;font-size:.88rem;padding:2px 0}
.foot-cols a:hover{color:var(--accent)}
.foot-cols p{color:var(--muted);font-size:.88rem;margin:6px 0 0}
.disc{color:var(--faint);font-size:.78rem;margin:24px 0 0;max-width:80ch}
.copy{color:var(--faint);font-size:.78rem;margin:6px 0 0}
@media (max-width:640px){.foot-cols{grid-template-columns:1fr 1fr}.w-badge{min-width:110px}}
@media (max-width:460px){.foot-cols{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}