/* Barlow Condensed: Google Fonts, SIL Open Font License or Apache 2.0; latin subset */
@font-face {
  font-family: 'Barlow Condensed';
  font-style: italic;
  font-weight: 800;
  font-display: swap;
  src: url(/fonts/barlow-condensed-italic-800.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Barlow Condensed';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(/fonts/barlow-condensed-normal-600.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Barlow Condensed';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(/fonts/barlow-condensed-normal-700.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Barlow Condensed';
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url(/fonts/barlow-condensed-normal-800.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* Barlow: Google Fonts, SIL Open Font License or Apache 2.0; latin subset */
@font-face {
  font-family: 'Barlow';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url(/fonts/barlow-italic-400.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Barlow';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(/fonts/barlow-normal-400.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Barlow';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(/fonts/barlow-normal-500.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Barlow';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(/fonts/barlow-normal-600.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
/* Listings Per Hour */
*,*::before,*::after{box-sizing:border-box}
:root{
  --bg:#f2f2ef; --ink:#0b0b0c; --muted:#56564f; --accent:#b8ff2e;
  --accent-ink:#3b6a00; --accent-soft:#e6f7c6; --tint:#e9e9e4;
  --line:#d6d6cf; --card:#ffffff;
  --maxw:64ch;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0a0a0b; --ink:#f2f2ee; --muted:#a3a39c; --accent:#b8ff2e;
    --accent-ink:#b8ff2e; --accent-soft:#1b2807; --tint:#111113;
    --line:#29292d; --card:#141416;
    color-scheme:dark;
  }
}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font-family:"Barlow", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; font-size:17px; line-height:1.65;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{font-family:"Barlow Condensed", "Arial Narrow", "Roboto Condensed", sans-serif-condensed, sans-serif; line-height:1.18; letter-spacing:-0.005em;
  text-transform:uppercase; margin:0 0 .5em; font-weight:800}
h1{font-size:clamp(2rem,1.35rem + 2.4vw,3rem)}
h2{font-size:clamp(1.4rem,1.15rem + 1.1vw,1.85rem); margin-top:2.2em}
h3{font-size:1.15rem; margin-top:1.9em}
p,ul,ol,table{margin:0 0 1.1em}
a{color:var(--accent-ink); text-underline-offset:2px; text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--accent); outline-offset:2px; border-radius:2px}
img{max-width:100%; height:auto}
hr{border:0; border-top:1px solid var(--line); margin:2.5rem 0}
code{font-family:ui-monospace,SFMono-Regular,Menlo,"Cascadia Mono",Consolas,monospace; font-size:.9em; background:var(--tint);
  padding:.12em .38em; border-radius:6px}
.wrap{max-width:1080px; margin:0 auto; padding:0 20px}
.prose{max-width:var(--maxw)}
.skip{position:absolute; left:-9999px; top:0; background:var(--accent); color:#fff;
  padding:.7rem 1rem; z-index:99; border-radius:0 0 6px 0}
.skip:focus{left:0}

/* header */
header.site{border-bottom:1px solid var(--line); background:var(--bg);
  position:sticky; top:0; z-index:20}
header.site .wrap{display:flex; align-items:center; gap:1.25rem;
  min-height:62px; flex-wrap:wrap}
.brand{font-family:"Barlow Condensed", "Arial Narrow", "Roboto Condensed", sans-serif-condensed, sans-serif; font-weight:800; font-size:1.05rem; letter-spacing:-.02em;
  color:var(--ink); text-decoration:none; display:flex; align-items:center; gap:.55rem;
  margin-right:auto; padding:.4rem 0}
.brand .mk{width:22px; height:22px; flex:none}
nav.main{display:flex; gap:1.1rem; flex-wrap:wrap}
nav.main a{color:var(--muted); text-decoration:none; font-size:.94rem; padding:.4rem 0;
  border-bottom:2px solid transparent}
nav.main a:hover,nav.main a[aria-current="page"]{color:var(--ink); border-bottom-color:var(--accent)}

/* hero */
.hero{background:#0b0b0c; --hero-fg:#f3f3ee;--hero-muted:#a6a69e; padding:clamp(2.5rem,6vw,4.5rem) 0; color:var(--hero-fg)}
.hero h1{max-width:19ch; color:var(--hero-fg)}
.hero .lede{font-size:clamp(1.05rem,1rem + .4vw,1.28rem); max-width:56ch;
  color:var(--hero-muted); margin-bottom:1.6rem}
.kicker{font-family:ui-monospace,SFMono-Regular,Menlo,"Cascadia Mono",Consolas,monospace; font-size:.74rem; letter-spacing:.14em;
  text-transform:uppercase; color:var(--accent-ink); margin:0 0 .9rem; font-weight:600}
.hero .kicker{color:var(--hero-fg); opacity:.75}
.hero.underline h1{padding-bottom:.35em; border-bottom:6px solid var(--accent);
  display:inline-block; max-width:100%}
.hero.bar{padding-left:0}
.hero.bar .wrap{padding-left:34px}

/* buttons */
.btn{display:inline-block; background:var(--accent); color:#fff; padding:.72rem 1.25rem;
  border-radius:8px; text-decoration:none; font-weight:600; font-size:.97rem;
  border:1px solid transparent; cursor:pointer; font-family:"Barlow", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}
.btn:hover{filter:brightness(.93)}
.btn.ghost{background:transparent; color:var(--hero-fg); border-color:currentColor; opacity:.85}
.btn.ghost:hover{opacity:1; filter:none}
.btns{display:flex; gap:.7rem; flex-wrap:wrap}

/* layout */
main{padding:2.5rem 0 3.5rem}
.cols{display:grid; grid-template-columns:minmax(0,1fr); gap:2.5rem}
@media (min-width:900px){.cols{grid-template-columns:minmax(0,1fr) 270px; gap:3.5rem}}
.cards{display:grid; gap:1.1rem; grid-template-columns:repeat(auto-fit,minmax(255px,1fr));
  padding:0; list-style:none; margin:1.6rem 0}
.card{background:var(--card); border:1px solid var(--line); border-radius:8px;
  padding:1.15rem 1.2rem; display:flex; flex-direction:column; gap:.4rem}
.card h3{margin:0; font-size:1.05rem}
.card p{margin:0; color:var(--muted); font-size:.94rem}
.card a{text-decoration:none; color:var(--ink)}
.card a:hover{color:var(--accent-ink)}
.card .rt{font-size:.8rem; color:var(--muted); font-family:ui-monospace,SFMono-Regular,Menlo,"Cascadia Mono",Consolas,monospace}

/* prose furniture */
.prose h2{scroll-margin-top:80px}
.prose h3{scroll-margin-top:80px}
.prose li{margin-bottom:.4em}
.key{font-size:1.05rem; border-left:3px solid var(--accent); padding:.1rem 0 .1rem 1rem;
  margin:1.5rem 0; font-weight:500}
.note{background:var(--tint); border:1px solid var(--line); border-left:4px solid var(--accent);
  border-radius:0 8px 8px 0; padding:1rem 1.15rem; margin:1.6rem 0}
.note p{margin:0 0 .5em} .note p:last-child{margin:0}
.note-t{font-weight:700; font-family:"Barlow Condensed", "Arial Narrow", "Roboto Condensed", sans-serif-condensed, sans-serif; font-size:.95rem}
.note.warn{border-left-color:#c8261b}
blockquote{margin:1.6rem 0; padding-left:1.2rem; border-left:3px solid var(--line);
  color:var(--muted); font-style:italic}
.tw{overflow-x:auto; margin:1.6rem 0; border:1px solid var(--line); border-radius:8px}
table{border-collapse:collapse; width:100%; font-size:.93rem; margin:0}
caption{text-align:left; padding:.8rem 1rem .2rem; color:var(--muted); font-size:.86rem}
th,td{padding:.62rem .85rem; text-align:left; border-bottom:1px solid var(--line);
  vertical-align:top}
th{background:var(--tint); font-family:"Barlow Condensed", "Arial Narrow", "Roboto Condensed", sans-serif-condensed, sans-serif; font-size:.86rem; letter-spacing:.01em}
tbody tr:last-child td{border-bottom:0}
ol.steps{list-style:none; counter-reset:s; padding:0; margin:1.6rem 0}
ol.steps li{counter-increment:s; position:relative; padding-left:3rem; margin-bottom:1.2rem}
ol.steps li::before{content:counter(s); position:absolute; left:0; top:0;
  width:2rem; height:2rem; border-radius:8px; background:var(--accent); color:#fff;
  display:grid; place-items:center; font-family:"Barlow Condensed", "Arial Narrow", "Roboto Condensed", sans-serif-condensed, sans-serif; font-weight:700; font-size:.9rem}
ol.steps strong{display:block; font-family:"Barlow Condensed", "Arial Narrow", "Roboto Condensed", sans-serif-condensed, sans-serif; margin-bottom:.15rem}
ol.steps span{color:var(--muted)}
.faq details{border-bottom:1px solid var(--line); padding:.9rem 0}
.faq summary{cursor:pointer; font-weight:600; font-family:"Barlow Condensed", "Arial Narrow", "Roboto Condensed", sans-serif-condensed, sans-serif; list-style:none;
  display:flex; justify-content:space-between; gap:1rem; align-items:flex-start}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+"; color:var(--accent-ink); font-weight:700; flex:none}
.faq details[open] summary::after{content:"\2013"}
.faq details>div{padding-top:.6rem; color:var(--muted)}
.faq details>div p:last-child{margin:0}

/* breadcrumbs, meta, toc */
.crumbs{font-size:.85rem; color:var(--muted); margin:0 0 1.2rem}
.crumbs a{color:var(--muted)}
.crumbs span{padding:0 .4rem}
.pmeta{font-size:.86rem; color:var(--muted); font-family:ui-monospace,SFMono-Regular,Menlo,"Cascadia Mono",Consolas,monospace;
  margin:0 0 1.8rem; display:flex; gap:1rem; flex-wrap:wrap}
.toc{background:var(--tint); border-radius:8px; padding:1rem 1.2rem; margin:0 0 2rem;
  border:1px solid var(--line)}
.toc p{margin:0 0 .5rem; font-family:"Barlow Condensed", "Arial Narrow", "Roboto Condensed", sans-serif-condensed, sans-serif; font-weight:700; font-size:.9rem}
.toc ol{margin:0; padding-left:1.1rem; font-size:.93rem}
.toc li{margin-bottom:.28em}
aside.rail{font-size:.93rem}
aside.rail h2{font-size:.82rem; text-transform:uppercase; letter-spacing:.1em;
  color:var(--muted); margin:0 0 .8rem; font-family:ui-monospace,SFMono-Regular,Menlo,"Cascadia Mono",Consolas,monospace; font-weight:600}
aside.rail ul{list-style:none; padding:0; margin:0 0 2rem}
aside.rail li{margin-bottom:.6rem; line-height:1.4}
aside.rail a{text-decoration:none; color:var(--ink)}
aside.rail a:hover{color:var(--accent-ink); text-decoration:underline}
.rail-box{background:var(--tint); border:1px solid var(--line); border-radius:8px;
  padding:1rem 1.1rem; margin-bottom:2rem}
.rail-box p{margin:0 0 .7rem; font-size:.9rem; color:var(--muted)}
.rail-box .btn{width:100%; text-align:center; font-size:.9rem; padding:.6rem 1rem}

/* tool */
.tool{background:var(--card); border:1px solid var(--line); border-radius:8px;
  padding:1.4rem; margin:2rem 0}
.tool .grid{display:grid; gap:1rem; grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}
.tool label{display:block; font-size:.85rem; font-weight:600; margin-bottom:.3rem;
  font-family:"Barlow Condensed", "Arial Narrow", "Roboto Condensed", sans-serif-condensed, sans-serif}
.tool .hint{font-weight:400; color:var(--muted); font-size:.78rem; display:block}
.tool input,.tool select{width:100%; padding:.6rem .7rem; border:1px solid var(--line);
  border-radius:6px; background:var(--bg); color:var(--ink); font-size:1rem;
  font-family:"Barlow", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}
.tool input:focus,.tool select:focus{border-color:var(--accent)}
.out{margin-top:1.4rem; border-top:1px solid var(--line); padding-top:1.2rem}
.stats{display:grid; gap:.9rem; grid-template-columns:repeat(auto-fit,minmax(135px,1fr));
  margin:0 0 1rem; padding:0; list-style:none}
.stat{background:var(--tint); border-radius:6px; padding:.8rem .9rem}
.stat dt{font-size:.76rem; text-transform:uppercase; letter-spacing:.07em;
  color:var(--muted); margin-bottom:.25rem; font-family:ui-monospace,SFMono-Regular,Menlo,"Cascadia Mono",Consolas,monospace}
.stat dd{margin:0; font-size:1.5rem; font-weight:700; font-family:"Barlow Condensed", "Arial Narrow", "Roboto Condensed", sans-serif-condensed, sans-serif;
  letter-spacing:-.02em; line-height:1.1}
.stat dd small{font-size:.85rem; font-weight:400; color:var(--muted); display:block;
  letter-spacing:0; margin-top:.15rem}
.verdict{font-size:1rem; padding:.85rem 1rem; border-radius:6px; background:var(--accent-soft);
  color:var(--ink); margin:0}
.tool table{font-size:.88rem}

/* mention + footer */
.mention{border:1px solid var(--line); border-left:4px solid var(--accent);
  background:var(--tint); border-radius:0 8px 8px 0; padding:1rem 1.2rem; margin:2rem 0;
  font-size:.95rem}
.mention p{margin:0}
.mention .lbl{font-family:ui-monospace,SFMono-Regular,Menlo,"Cascadia Mono",Consolas,monospace; font-size:.72rem; letter-spacing:.12em;
  text-transform:uppercase; color:var(--muted); display:block; margin-bottom:.35rem}
footer.site{border-top:1px solid var(--line); background:var(--tint);
  padding:2.5rem 0; margin-top:3rem; font-size:.9rem; color:var(--muted)}
footer.site .fgrid{display:grid; gap:2rem; grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}
footer.site h2{font-size:.8rem; text-transform:uppercase; letter-spacing:.1em;
  margin:0 0 .7rem; font-family:ui-monospace,SFMono-Regular,Menlo,"Cascadia Mono",Consolas,monospace; color:var(--ink); font-weight:600}
footer.site ul{list-style:none; padding:0; margin:0}
footer.site li{margin-bottom:.45rem}
footer.site a{color:var(--muted); text-decoration:none}
footer.site a:hover{color:var(--accent-ink); text-decoration:underline}
.colophon{border-top:1px solid var(--line); margin-top:2rem; padding-top:1.5rem;
  display:flex; justify-content:space-between; gap:1rem; flex-wrap:wrap; font-size:.85rem}
@media print{header.site,footer.site,aside.rail,.btns{display:none}}

.tool .grid > div.wide{grid-column:1/-1}
.tool textarea{width:100%; padding:.65rem .75rem; border:1px solid var(--line);
  border-radius:var(--rs,6px); background:var(--bg); color:var(--ink);
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; font-size:.95rem;
  line-height:1.55; resize:vertical}
.tool textarea:focus{border-color:var(--accent)}

/* ============ Listings Per Hour: the performance dashboard ============ */
:root{
  --cond:"Barlow Condensed","Arial Narrow","Roboto Condensed",sans-serif-condensed,sans-serif;
  --sans:"Barlow",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --ease:cubic-bezier(.4,0,.6,1);
  --volt:#b8ff2e; --volt-hi:#cbff63; --on-volt:#0b0b0c;
  --chrome:#0b0b0c; --panel:#0b0b0c; --panel-2:#18181a; --panel-3:#1f1f22; --th:#0b0b0c;
  --p-line:#2b2b2f; --p-ink:#f3f3ee; --p-muted:#a3a39b;
  --ink-2:#2f2f2b; --warn:#c8261b; --focus:#0b0b0c; --mark:#0b0b0c; --num:#0b0b0c; --edge:#0b0b0c; --focus-ring:#0b0b0c;
  --ticks:repeating-linear-gradient(90deg,#4a4a50 0 1px,transparent 1px 60px) left bottom/100% 14px no-repeat,
    repeating-linear-gradient(90deg,#2a2a2e 0 1px,transparent 1px 12px) left bottom/100% 7px no-repeat;
  --dial:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 600 600' fill='none'%3E%3Ccircle cx='300' cy='300' r='292' stroke='%231f1f22' stroke-width='1.5'/%3E%3Ccircle cx='300' cy='300' r='270' stroke='%232a2a2e' stroke-width='14' stroke-dasharray='2 26.27' transform='rotate(-90.2 300 300)'/%3E%3Ccircle cx='300' cy='300' r='266' stroke='%2345454b' stroke-width='22' stroke-dasharray='3.4 135.88' transform='rotate(-90.37 300 300)'/%3E%3Ccircle cx='300' cy='300' r='228' stroke='%231c1c1f' stroke-width='1'/%3E%3Ccircle cx='300' cy='300' r='228' stroke='%23b8ff2e' stroke-width='4' stroke-linecap='round' stroke-dasharray='167.1 2000' transform='rotate(-90 300 300)'/%3E%3Cpath d='M271.9 331.2L443.2 141.0' stroke='%23b8ff2e' stroke-width='3' stroke-linecap='round'/%3E%3Ccircle cx='300' cy='300' r='10' fill='%23b8ff2e'/%3E%3Ccircle cx='300' cy='300' r='3.6' fill='%230b0b0c'/%3E%3C/svg%3E");
  --i-watch:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='black' stroke-width='1.6' stroke-linecap='round'%3E%3Ccircle cx='8' cy='9.2' r='5.4'/%3E%3Cpath d='M6.3 1.6h3.4M8 1.6v2.2'/%3E%3Cpath d='M8 9.2l2.3-2.3'/%3E%3C/svg%3E"); --i-bolt:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M11.4 1.2 3.6 11.3h5.3l-1.2 7.5 7.9-10.4H10.2z'/%3E%3C/svg%3E");
}
@media (prefers-color-scheme:dark){:root{
  --panel:#141416; --panel-2:#1c1c1f; --panel-3:#232327; --th:#1f1f23; --p-line:#2e2e33;
  --ink-2:#d2d2cb; --warn:#ff6b5d; --focus:var(--volt); --mark:var(--volt); --num:var(--volt); --edge:#3a3a40;
  --focus-ring:var(--volt);
}}

/* ---- type ---- */
body{font-size:19px;line-height:1.6;color:var(--ink)}
h1,h2,h3,h4{font-family:var(--cond);text-transform:uppercase;color:var(--ink)}
h1{font-size:clamp(2.7rem,1.7rem + 3.3vw,4.6rem);line-height:.92;letter-spacing:-.012em;font-weight:800}
h2{font-size:clamp(1.9rem,1.5rem + 1.3vw,2.65rem);line-height:.98;letter-spacing:-.004em;font-weight:800;margin:2.1em 0 .5em}
h3{font-size:1.4rem;line-height:1.08;letter-spacing:.014em;font-weight:700;margin:1.9em 0 .45em}
p,ul,ol{margin:0 0 1.05em}
strong,b{font-weight:600}
a{color:var(--accent-ink);text-decoration-thickness:2px;text-underline-offset:.2em;
  text-decoration-color:color-mix(in srgb,currentColor 38%,transparent)}
a:hover{text-decoration-color:currentColor}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:2px}
header.site,.hero,.tool,footer.site,.card,.toc,.rail-box,.key{--focus:var(--volt)}
::selection{background:var(--volt);color:#0b0b0c}
code{background:var(--tint)}

/* ---- header: the instrument bar ---- */
header.site{background:var(--chrome);border-bottom:1px solid var(--p-line)}
header.site .wrap{min-height:60px;flex-wrap:nowrap;gap:1.5rem}
.brand{font-family:var(--cond);font-weight:700;font-size:1.2rem;letter-spacing:.07em;text-transform:uppercase;
  color:var(--p-ink);gap:.6rem;padding:0;flex:none}
.brand .mk{width:28px;height:28px}
nav.main{gap:1.8rem;align-self:stretch;flex-wrap:nowrap}
nav.main a{font-family:var(--cond);font-weight:600;font-size:1rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--p-muted);text-decoration:none;display:flex;align-items:center;min-height:44px;padding:0;
  border-top:3px solid transparent;border-bottom:3px solid transparent;white-space:nowrap}
nav.main a:hover{color:var(--p-ink)}
nav.main a[aria-current="page"]{color:var(--p-ink);border-bottom-color:var(--volt)}
nav.main a:nth-last-child(2){color:var(--volt)}

/* ---- hero: stopwatch dial, tick ruler, the claim at full size ---- */
.hero{position:relative;overflow:hidden;background:var(--chrome);color:var(--p-ink);border:0;
  padding:clamp(3rem,7vw,6.2rem) 0 clamp(4.2rem,8vw,7.2rem)}
.hero::before{content:"";position:absolute;left:0;right:0;bottom:0;height:14px;background:var(--ticks)}
.hero::after{content:"";position:absolute;right:calc(50% - 780px);top:50%;width:700px;height:700px;
  transform:translateY(-50%);background:var(--dial) center/contain no-repeat;pointer-events:none}
.hero .wrap{position:relative;z-index:1}
.hero .kicker{display:inline-flex;align-items:center;gap:.7rem;font-family:var(--cond);font-weight:700;font-size:.98rem;
  letter-spacing:.24em;color:var(--volt);opacity:1;margin:0}
.hero .kicker::before{content:"";width:.6rem;height:.6rem;border-radius:50%;background:var(--volt);
  box-shadow:0 0 0 .32rem rgba(184,255,46,.16)}
.hero h1{font-size:clamp(3.2rem,1.4rem + 4.7vw,6.6rem);line-height:.86;letter-spacing:-.02em;max-width:min(100%,660px);
  margin:.34em 0 .32em;color:var(--p-ink);text-wrap:balance}
h1,h2,h3{text-wrap:balance}
.hero .lede{font-family:var(--sans);font-size:clamp(1.1rem,1rem + .5vw,1.4rem);line-height:1.45;color:var(--p-muted);
  max-width:40ch;margin:0 0 2.1rem}
.hero .btns{gap:.8rem}

/* ---- buttons: volt pill on black, ghost ring ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.6rem;min-height:50px;padding:.7rem 1.6rem;
  background:var(--volt);color:var(--on-volt);border:0;border-radius:999px;font-family:var(--cond);font-weight:700;
  font-size:1.06rem;letter-spacing:.1em;text-transform:uppercase;text-decoration:none;
  transition:background-color .32s var(--ease),box-shadow .32s var(--ease)}
.btn::after{content:"\2192" / "";font-family:var(--sans);font-weight:600;letter-spacing:0}
.btn:hover{filter:none;background:var(--volt-hi)}
.btn.ghost{background:transparent;color:var(--p-ink);box-shadow:inset 0 0 0 1.5px rgba(243,243,238,.34);opacity:1}
.btn.ghost::after{content:none}
.btn.ghost:hover{box-shadow:inset 0 0 0 1.5px var(--p-ink)}

/* ---- reading surface ---- */
main{padding:clamp(2.2rem,5vw,3.6rem) 0 4.6rem}
.prose li{margin-bottom:.4em}
.prose>ul{list-style:none;padding-left:0}
.prose>ul>li{position:relative;padding-left:1.4rem}
.prose>ul>li::before{content:"";position:absolute;left:.1rem;top:.62em;width:.46rem;height:.46rem;background:var(--mark)}
.prose>ol:not(.steps){list-style:none;padding:0;counter-reset:lap;border-top:2px solid var(--ink)}
.prose>ol:not(.steps)>li{counter-increment:lap;display:grid;grid-template-columns:3.3rem minmax(0,1fr);column-gap:.8rem;
  padding:.85rem 0;border-bottom:1px solid var(--line);margin:0}
.prose>ol:not(.steps)>li::before{content:counter(lap,decimal-leading-zero);font:italic 800 1.95rem/1 var(--cond);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;color:var(--num)}
.prose h2,#guides{position:relative;padding-top:.62em}
.prose h2::before,#guides::before{content:"";position:absolute;left:0;top:0;width:2.6rem;height:5px;
  background:linear-gradient(90deg,var(--ink) 0 58%,var(--volt) 58%)}
.p-home .prose>p:first-child{font-size:clamp(1.22rem,1.1rem + .45vw,1.45rem);line-height:1.45;color:var(--ink)}

.crumbs{font-family:var(--cond);font-weight:600;font-size:.9rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--muted);margin:0 0 1.6rem}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--ink)}
.kicker{display:flex;align-items:center;gap:.6rem;font-family:var(--cond);font-weight:700;font-size:.92rem;
  letter-spacing:.2em;color:var(--ink);margin:0 0 .95rem}
.kicker::before{content:"";width:.7rem;height:.7rem;border-radius:2px;background:var(--volt);box-shadow:inset 0 0 0 1px rgba(0,0,0,.12)}
main h1{max-width:15ch}
.pmeta{font-family:var(--cond);font-weight:600;font-size:.95rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted);gap:1.3rem;margin:1rem 0 1.5rem;font-variant-numeric:tabular-nums}
.pmeta span{display:inline-flex;align-items:center;gap:.4rem}
.pmeta span::before,.card .rt::before{content:"";width:1em;height:1em;background:currentColor;
  -webkit-mask:var(--i-watch) center/contain no-repeat;mask:var(--i-watch) center/contain no-repeat}
.lede{font-size:clamp(1.15rem,1.05rem + .4vw,1.36rem);line-height:1.5;color:var(--ink-2);margin:0 0 2rem}

/* contents: a black lap list */
.toc{background:var(--panel);color:var(--p-ink);border:0;border-radius:10px;padding:1.15rem 1.35rem .95rem;margin:0 0 2.4rem}
.toc p{font-family:var(--cond);font-weight:700;font-size:.86rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--volt);margin:0 0 .55rem}
.toc ol{list-style:none;padding:0;margin:0;counter-reset:t}
.toc li{counter-increment:t;display:grid;grid-template-columns:2.4rem minmax(0,1fr);align-items:baseline;
  border-top:1px solid var(--p-line);padding:.55rem 0;margin:0}
.toc li::before{content:counter(t,decimal-leading-zero);font:italic 800 1.05rem/1 var(--cond);color:var(--p-muted);
  font-variant-numeric:tabular-nums}
.toc a{color:var(--p-ink);text-decoration:none;font-size:1rem;line-height:1.35}
.toc a:hover{color:var(--volt)}

/* steps: split rows with italic lap numbers */
ol.steps{counter-reset:s;border-top:2px solid var(--ink);margin:1.8rem 0 2.2rem;padding:0}
ol.steps li{display:grid;grid-template-columns:3.9rem minmax(0,1fr);column-gap:1rem;padding:1.05rem 0 1.15rem;
  border-bottom:1px solid var(--line);margin:0;position:static}
ol.steps li::before{position:static;grid-row:1/span 2;content:counter(s,decimal-leading-zero);width:auto;height:auto;
  display:block;background:none;border-radius:0;color:var(--num);font:italic 800 2.7rem/.85 var(--cond);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em}
ol.steps strong{display:block;font-family:var(--cond);font-weight:700;font-size:1.3rem;line-height:1.1;letter-spacing:.02em;
  text-transform:uppercase;margin:.05rem 0 .3rem;color:var(--ink)}
ol.steps span{display:block;color:var(--ink-2)}

/* tables: timing sheets */
.tw{border:1px solid var(--line);border-radius:10px;background:var(--card);margin:2rem 0;overflow-x:auto}
table{font-size:.98rem;font-variant-numeric:tabular-nums}
caption{font-family:var(--cond);font-weight:700;font-size:.88rem;letter-spacing:.15em;text-transform:uppercase;
  color:var(--ink);padding:.85rem 1rem .65rem;text-align:left}
th{background:var(--th);color:var(--p-ink);font-family:var(--cond);font-weight:600;font-size:.84rem;letter-spacing:.13em;
  text-transform:uppercase;padding:.62rem 1rem;border:0;white-space:nowrap}
td{padding:.75rem 1rem;border-bottom:1px solid var(--line);line-height:1.45}
td:first-child{font-weight:600;color:var(--ink)}
tbody tr:last-child td{border-bottom:0}
@media (hover:hover){.prose>.tw tbody tr:hover td{background:var(--tint)}}

/* key line: a black stat card */
.key{position:relative;background:var(--panel);color:var(--p-ink);border:0;border-radius:10px;
  padding:1.45rem 1.6rem 1.5rem 1.9rem;margin:2.2rem 0;font-family:var(--cond);font-weight:700;font-style:normal;
  font-size:clamp(1.45rem,1.2rem + .8vw,1.85rem);line-height:1.1;letter-spacing:.005em;text-transform:uppercase}
.key::before{content:"";position:absolute;left:0;top:1.35rem;bottom:1.35rem;width:5px;background:var(--volt);border-radius:0 3px 3px 0}

.note{background:var(--card);border:1px solid var(--line);border-top:4px solid var(--volt);border-radius:10px;
  padding:1.05rem 1.25rem 1.1rem;margin:1.9rem 0}
.note-t{font-family:var(--cond);font-weight:700;font-size:1.16rem;line-height:1.15;letter-spacing:.03em;text-transform:uppercase;
  color:var(--ink);margin:0 0 .35rem}
.note p:not(.note-t){font-size:1rem;color:var(--ink-2)}
.note.warn{border-top-color:var(--warn)}
blockquote{font-family:var(--cond);font-weight:600;font-style:normal;text-transform:uppercase;font-size:1.4rem;line-height:1.15;
  color:var(--ink);border-left:5px solid var(--volt);padding:.2rem 0 .2rem 1.2rem;margin:1.9rem 0}

/* faq */
.faq{margin:2.4rem 0 2rem;border-top:2px solid var(--ink)}
.faq details{border-bottom:1px solid var(--line);padding:0}
.faq summary{font-family:var(--cond);font-weight:700;font-size:1.22rem;line-height:1.15;letter-spacing:.02em;
  text-transform:uppercase;padding:1rem 0;min-height:52px;align-items:center;color:var(--ink)}
.faq summary::after{content:"";flex:none;width:1.9rem;height:1.9rem;border-radius:50%;color:var(--ink);
  box-shadow:inset 0 0 0 1.5px currentColor;background:linear-gradient(currentColor,currentColor) center/.7rem 2px no-repeat,
  linear-gradient(currentColor,currentColor) center/2px .7rem no-repeat}
.faq details[open] summary::after{box-shadow:none;background:linear-gradient(var(--on-volt),var(--on-volt)) center/.7rem 2px no-repeat,var(--volt)}
.faq details>div{padding:0 3rem 1.15rem 0;color:var(--ink-2)}

/* disclosure */
.mention{background:transparent;border:1.5px solid var(--edge);border-radius:10px;padding:1.05rem 1.25rem 1.1rem;
  font-size:.97rem;line-height:1.55;color:var(--ink-2);margin:2.6rem 0}
.mention .lbl{display:flex;align-items:center;gap:.5rem;font-family:var(--cond);font-weight:700;font-size:.86rem;
  letter-spacing:.2em;color:var(--ink);margin-bottom:.35rem}
.mention .lbl::before{content:"";width:.5rem;height:.5rem;border-radius:50%;background:var(--ink)}

/* guide tiles: dashboard cards with italic lap numbers */
#guides{font-size:clamp(1.9rem,1.5rem + 1.3vw,2.65rem);margin:2.2em 0 .2em}
#keep-reading{font-size:1.7rem}
ul.cards{display:flex;flex-wrap:wrap;gap:12px;counter-reset:tile;margin:1.4rem 0 2.8rem;padding:0}
ul.cards>.card{flex:1 1 236px}
.card{position:relative;counter-increment:tile;background:var(--panel);color:var(--p-ink);border:1px solid var(--panel);
  border-radius:10px;padding:1.3rem 1.35rem 1.45rem;min-height:15rem;gap:.5rem;transition:border-color .32s var(--ease)}
.card::before{content:counter(tile,decimal-leading-zero);font:italic 800 3.6rem/.8 var(--cond);color:var(--volt);
  font-variant-numeric:tabular-nums;letter-spacing:-.03em;margin-bottom:auto}
.card h3{font-size:1.55rem;line-height:1;letter-spacing:.005em;margin:1.4rem 0 .15rem;color:var(--p-ink)}
.card a{color:var(--p-ink);text-decoration:none}
.card p{color:var(--p-muted);font-size:.97rem;line-height:1.5;margin:0}
.card .rt{position:absolute;top:1.35rem;right:1.35rem;display:flex;align-items:center;gap:.4rem;font-family:var(--cond);
  font-weight:600;font-size:.82rem;letter-spacing:.16em;text-transform:uppercase;color:var(--p-muted)}
.card h3 a::after{content:"";position:absolute;inset:0;border-radius:10px}
.card h3 a:focus-visible{outline:none}
.card:has(a:focus-visible){outline:3px solid var(--focus-ring);outline-offset:3px}
.card:hover{border-color:var(--volt)}
.card:hover h3 a{color:var(--volt)}
.p-article ul.cards{margin-top:1rem}
.p-article .card{min-height:12.5rem}
.p-article .card::before{font-size:2.8rem}
.p-article .card h3{font-size:1.3rem}

/* rail */
@media (min-width:900px){aside.rail{position:sticky;top:84px;align-self:start}}
.rail-box{background:var(--panel);color:var(--p-ink);border:0;border-radius:10px;padding:1.25rem 1.25rem 1.3rem;margin-bottom:2.2rem}
.rail-box p{font-family:var(--cond);font-weight:700;font-size:1.45rem;line-height:1.02;letter-spacing:.01em;
  text-transform:uppercase;color:var(--p-ink);margin:0 0 1rem}
.rail-box .btn{width:100%;color:var(--on-volt);font-size:.98rem;min-height:46px;padding:.55rem 1rem}
.rail-box .btn:hover{text-decoration:none}
aside.rail h2{font-family:var(--cond);font-weight:700;font-size:.86rem;letter-spacing:.2em;color:var(--muted);
  margin:0 0 .55rem;text-transform:uppercase}
aside.rail ul{counter-reset:r;border-top:2px solid var(--ink)}
aside.rail li{counter-increment:r;display:grid;grid-template-columns:2.1rem minmax(0,1fr);align-items:baseline;
  border-bottom:1px solid var(--line);margin:0}
aside.rail li::before{content:counter(r,decimal-leading-zero);font:italic 800 .98rem/1 var(--cond);color:var(--muted);
  font-variant-numeric:tabular-nums}
aside.rail li a{display:block;padding:.72rem 0;color:var(--ink);font-size:.98rem;line-height:1.3;text-decoration:none}
aside.rail li a:hover{color:var(--accent-ink)}

/* ---- the lap timer ---- */
.p-tool .cols{grid-template-columns:minmax(0,1fr)}
.p-tool .cols>.prose{max-width:none}
.p-tool .cols>.prose>:not(.tool){max-width:var(--maxw)}
.p-tool aside.rail{position:static;max-width:var(--maxw)}
.p-tool .rail-box{display:none}
.tool{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.12fr);background:var(--panel);
  color:var(--p-ink);border:1px solid var(--p-line);border-radius:14px;padding:0;margin:2rem 0 2.8rem;overflow:hidden;
  font-variant-numeric:tabular-nums}
.tool .grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));column-gap:.75rem;align-content:start;
  padding:.55rem 1.5rem 1.5rem;counter-reset:lap;border-right:1px solid var(--p-line)}
.tool .grid>div{grid-column:1/-1;counter-increment:lap;position:relative;display:grid;align-items:center;column-gap:.85rem;
  grid-template-columns:2.4rem minmax(0,1fr) 8.6rem;padding:.72rem 0;border-bottom:1px solid var(--p-line)}
.tool .grid>div::before{content:counter(lap,decimal-leading-zero);font:italic 800 1.4rem/1 var(--cond);color:var(--p-muted);
  letter-spacing:-.02em}
.tool label{font-family:var(--cond);font-weight:700;font-size:1.1rem;line-height:1.1;letter-spacing:.06em;
  text-transform:uppercase;color:var(--p-ink);margin:0}
.tool .hint{font-family:var(--sans);font-weight:400;font-size:.84rem;line-height:1.3;letter-spacing:0;text-transform:none;
  color:var(--p-muted);margin-top:.2rem}
.tool input,.tool select{height:52px;background:var(--panel-2);color:var(--p-ink);border:1px solid var(--p-line);border-radius:9px;
  font:700 1.7rem/1 var(--cond);font-variant-numeric:tabular-nums;text-align:right;padding:0 3.2rem 0 .8rem;
  -moz-appearance:textfield;appearance:textfield;transition:border-color .32s var(--ease),box-shadow .32s var(--ease)}
.tool input::-webkit-inner-spin-button,.tool input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}
.tool input:hover{border-color:#4a4a50}
.tool input:focus,.tool select:focus{outline:none;border-color:var(--volt);box-shadow:0 0 0 3px rgba(184,255,46,.24)}
.tool .grid>div::after{content:"min" / "";position:absolute;right:.9rem;top:50%;transform:translateY(-50%);
  font:600 .8rem/1 var(--cond);letter-spacing:.14em;text-transform:uppercase;color:var(--p-muted);pointer-events:none}
.tool .grid>div:is(:has(#hours),:has(#net),:has(#sell)){grid-column:auto;counter-increment:none;display:flex;
  flex-direction:column;justify-content:flex-end;gap:.5rem;padding:1.15rem 0 0;border:0}
.tool .grid>div:is(:has(#hours),:has(#net),:has(#sell))::before{content:none}
.tool .grid>div:is(:has(#hours),:has(#net),:has(#sell)) label{font-size:.92rem;letter-spacing:.12em}
.tool .grid>div:is(:has(#hours),:has(#net),:has(#sell)) .hint{font-size:.78rem}
.tool .grid>div:is(:has(#hours),:has(#net),:has(#sell))::after{top:auto;bottom:26px;transform:translateY(50%)}
.tool .grid>div:has(#hours)::after{content:"hrs" / ""}
.tool .grid>div:has(#sell)::after{content:"%" / "";font-size:1.05rem;letter-spacing:0}
.tool .grid>div:has(#net)::after{content:"$" / "";right:auto;left:.85rem;font-size:1.1rem;letter-spacing:0}
.tool .grid>div:has(#net) input{padding-left:1.9rem;padding-right:.8rem}
.tool .out{margin:0;border:0;padding:1.55rem 1.65rem 1.65rem;
  background:radial-gradient(110% 70% at 100% 0,rgba(184,255,46,.075),transparent 62%),var(--panel)}
.tool .out>p:only-child{color:var(--p-muted);margin:0}
.stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;margin:0 0 1.3rem}
.stat{background:none;border-radius:0;padding:.95rem 1rem 1rem 0;border-top:1px solid var(--p-line)}
.stat:nth-child(odd):not(:first-child){border-left:1px solid var(--p-line);padding-left:1.15rem}
.stat:nth-child(even):last-child{grid-column:1/-1}
.stat:first-child{grid-column:1/-1;border:0;padding:0 0 1.15rem}
.stat dt{font-family:var(--cond);font-weight:600;font-size:.8rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--p-muted);margin:0 0 .5rem;line-height:1.2}
.stat dd{font-family:var(--cond);font-weight:800;font-size:clamp(1.9rem,1.5rem + 1vw,2.5rem);line-height:.95;
  letter-spacing:-.01em;color:var(--p-ink);font-variant-numeric:tabular-nums}
.stat dd small{font-family:var(--cond);font-weight:600;font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--p-muted);margin-top:.5rem;line-height:1.25}
.stat:first-child dt{color:var(--volt);font-weight:700}
.stat:first-child dd{font-style:italic;font-size:clamp(5.4rem,3rem + 6.2vw,9.4rem);line-height:.8;letter-spacing:-.035em;color:var(--volt)}
.stat:first-child dd small{font-style:normal;font-size:.96rem;color:var(--p-ink);margin-top:1rem;letter-spacing:.12em}
.tool .tw{border:0;border-radius:0;background:none;margin:0 0 1.15rem;overflow-x:auto}
.tool table{font-size:1rem}
.tool caption{font-weight:600;font-size:.8rem;letter-spacing:.16em;color:var(--p-muted);padding:0 0 .55rem;background:none}
.tool th{background:none;color:var(--p-muted);font-weight:600;font-size:.76rem;letter-spacing:.15em;padding:.5rem .6rem;
  border-bottom:1px solid var(--p-line)}
.tool th:first-child,.tool td:first-child{padding-left:0}
.tool th:last-child,.tool td:last-child{padding-right:0}
.tool td{padding:.52rem .6rem;border-bottom:1px solid var(--p-line);color:var(--p-ink);font-weight:500}
.tool td:first-child{font-family:var(--cond);font-weight:600;font-size:1.04rem;letter-spacing:.05em;text-transform:uppercase;color:var(--p-ink)}
.tool td:nth-child(n+2),.tool th:nth-child(n+2){text-align:right}
.tool td:nth-child(2){font-family:var(--cond);font-weight:700;font-size:1.14rem}
.tool td:nth-child(3){color:var(--p-muted)}
.tool tbody{counter-reset:split}
.tool tbody tr:not(:last-child){counter-increment:split}
.tool tbody tr:not(:last-child) td:first-child::before{content:counter(split,decimal-leading-zero);display:inline-block;width:2.1rem;
  color:var(--p-muted);font-style:italic;font-weight:800;letter-spacing:-.02em}
.tool tbody tr:last-child td{border-bottom:0;border-top:1px solid var(--volt);color:var(--volt)}
.tool tbody tr:last-child td:first-child{padding-left:2.1rem}
.verdict{position:relative;background:var(--panel-3);color:var(--p-ink);border-radius:10px;
  padding:1rem 1.15rem 1.05rem 3rem;font-size:1rem;line-height:1.5;margin:0}
.verdict::before{content:"";position:absolute;left:1.1rem;top:1.12rem;width:1.1rem;height:1.1rem;background:var(--volt);
  -webkit-mask:var(--i-bolt) center/contain no-repeat;mask:var(--i-bolt) center/contain no-repeat}
noscript .note-t{font-family:var(--cond)}

/* ---- footer: tick ruler, columns, a cropped wordmark ---- */
footer.site{position:relative;overflow:hidden;background:var(--chrome);color:var(--p-muted);border-top:0;margin-top:0;
  padding:3.4rem 0 0;font-size:.95rem}
footer.site::before{content:"";position:absolute;left:0;right:0;top:0;height:14px;background:var(--ticks);transform:scaleY(-1)}
footer.site h2{font-family:var(--cond);font-weight:700;font-size:.86rem;letter-spacing:.2em;color:var(--p-ink);margin:0 0 .85rem}
footer.site .fgrid>div:first-child h2{font-size:1.5rem;letter-spacing:.06em}
footer.site p{color:var(--p-muted);max-width:32ch}
footer.site a{color:var(--p-ink);text-decoration:none}
footer.site a:hover{color:var(--volt)}
footer.site li{margin-bottom:.5rem}
.colophon{position:relative;z-index:1;border-top:1px solid var(--p-line);margin-top:2.6rem;padding:1.3rem 0 1.4rem;
  font-family:var(--cond);font-weight:600;font-size:.84rem;letter-spacing:.1em;text-transform:uppercase;color:var(--p-muted)}
footer.site::after{content:"Per hour" / "";display:block;font:italic 800 16.5vw/.74 var(--cond);text-transform:uppercase;
  letter-spacing:-.03em;color:#161618;text-align:center;white-space:nowrap;margin:-.1em 0 -.12em;pointer-events:none}

/* ---- motion: a live dot, color changes; nothing moves when motion is unwelcome ---- */
@media (prefers-reduced-motion:no-preference){
  .hero .kicker::before{animation:lph-live 2s var(--ease) infinite}
  a,nav.main a,.card h3 a{transition:color .32s var(--ease),border-color .32s var(--ease)}
}
@keyframes lph-live{50%{opacity:.25}}

/* ---- dark: the page becomes the instrument ---- */
@media (prefers-color-scheme:dark){
  .card{border-color:var(--p-line)}
  .kicker{color:var(--volt)}
  .kicker::before{box-shadow:none}
  .prose h2::before,#guides::before{background:linear-gradient(90deg,var(--ink) 0 58%,var(--volt) 58%)}
  .tw{border-color:var(--line)}
  .mention .lbl::before{background:var(--volt)}
}

/* ---- small screens ---- */
@media (max-width:900px){.cols{gap:2rem} aside.rail{max-width:var(--maxw)}}
@media (max-width:860px){
  .tool{grid-template-columns:minmax(0,1fr);margin-left:-8px;margin-right:-8px}
  .tool .out{order:-1;border-bottom:1px solid var(--p-line);padding:1.25rem 1.15rem 1.3rem}
  .tool .grid{border-right:0;padding:.3rem 1.15rem 1.3rem}
}
@media (max-width:760px){
  header.site .wrap{min-height:56px;gap:1rem;padding-right:0}
  .brand{font-size:1.02rem;letter-spacing:.05em;gap:.5rem}
  .brand .mk{width:24px;height:24px}
  nav.main{flex:1;min-width:0;overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:none;gap:1.25rem;
    padding:0 20px 0 2px;-webkit-mask-image:linear-gradient(90deg,#000 calc(100% - 32px),transparent);
    mask-image:linear-gradient(90deg,#000 calc(100% - 32px),transparent)}
  nav.main::-webkit-scrollbar{display:none}
  nav.main a{flex:none;scroll-snap-align:start;font-size:.95rem}
  .hero::after{width:400px;height:400px;right:-205px;top:-150px;transform:none;opacity:.8}
  .card{min-height:0}
  .card h3{margin-top:1.1rem}
  .faq details>div{padding-right:0}
}
@media (max-width:600px){
  .hero .btns{flex-direction:column;align-items:stretch}
  .tool .grid{grid-template-columns:minmax(0,1fr)}
  .tool .grid>div{grid-template-columns:2.3rem minmax(0,1fr);row-gap:.6rem;padding:.9rem 0}
  .tool .grid>div input{grid-column:1/-1}
  .tool .grid>div::after{top:auto;bottom:calc(.9rem + 26px);transform:translateY(50%)}
  .tool .grid>div:is(:has(#hours),:has(#net),:has(#sell)){grid-column:1/-1;padding-top:.95rem}
  .tool .grid>div:is(:has(#hours),:has(#net),:has(#sell))::after{bottom:26px}
  .stat{padding-top:.85rem;padding-bottom:.9rem}
  .stat:nth-child(odd):not(:first-child){padding-left:.9rem}
  .stat dt{font-size:.72rem;letter-spacing:.13em}
  .stat dd{font-size:2rem}
  .stat dd small{font-size:.72rem;letter-spacing:.07em}
}

@media print{
  .hero::after,.hero::before,footer.site::after{content:none}
  .tool,.toc,.key,.card{background:#fff;color:#000;border:1px solid #999}
}