/* ItchMap: cartographic layers on cool paper. One loud element (the itch map grid), everything else quiet. */
:root {
  --paper: #F3F6F8; --card: #FFFFFF; --ink: #13202B; --ink-2: #4A5A68; --rule: #DCE3E9; --soft: #E8EEF2; --link: #1F5E8C;
  --f-head: "Bricolage Grotesque", "Avenir Next", system-ui, sans-serif; --f-body: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --r-sm: 4px; --r-md: 10px;
}
@media (prefers-color-scheme: dark) { :root { --paper: #0F1A22; --card: #15222C; --ink: #E6EDF2; --ink-2: #9FB0BE; --rule: #27384A; --soft: #1B2B37; --link: #8EC0E8; } }
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 17px/1.6 var(--f-body); font-variant-numeric: tabular-nums; }
a { color: var(--link); text-underline-offset: 3px; }
a:focus-visible, .btn:focus-visible { outline: 3px solid var(--link); outline-offset: 2px; border-radius: var(--r-sm); }
h1, h2, h3 { font-family: var(--f-head); line-height: 1.12; letter-spacing: -0.015em; margin: 0 0 .4em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.35rem, 2.4vw, 1.75rem); font-weight: 700; margin-top: 2.2em; }
h3 { font-size: 1.1rem; font-weight: 700; }
small { font: 500 .8em var(--f-body); color: var(--ink-2); letter-spacing: 0; }
main { max-width: 1160px; margin: 0 auto; padding: 0 24px 64px; }
.lede { color: var(--ink-2); max-width: 66ch; margin: 0 0 1em; }
.btn { display: inline-block; background: var(--ink); color: var(--paper); text-decoration: none; font-weight: 600; padding: 12px 20px; border-radius: var(--r-md); }
.btn:hover { background: var(--link); }

/* header: brand + the eight layers as a legend */
.top { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; padding: 14px 24px; border-bottom: 1px solid var(--rule); background: var(--card); }
.brand { display: inline-flex; gap: 10px; align-items: center; font: 800 1.25rem var(--f-head); color: var(--ink); text-decoration: none; }
.brand svg { width: 30px; height: 30px; }
.layers { display: flex; gap: 4px 14px; flex-wrap: wrap; font-size: .82rem; flex: 1; }
.layers a { color: var(--ink-2); text-decoration: none; display: inline-flex; gap: 6px; align-items: center; }
.layers a i { width: 9px; height: 9px; border-radius: 2px; background: var(--c); }
.layers a:hover { color: var(--ink); }
.all { font-weight: 600; font-size: .9rem; }

/* landing hero: copy left, the map right */
.hero { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 48px; align-items: start; padding-top: 56px; }
.hero h1 { max-width: 13ch; }
.map { background: var(--card); border: 1px solid var(--rule); border-radius: var(--r-md); padding: 14px 16px 10px; }
.map-cols { display: grid; grid-template-columns: minmax(0, 1fr) repeat(9, 20px); gap: 4px; padding: 0 0 8px; border-bottom: 1px solid var(--rule); }
.map-cols::before { content: ""; }
.map-cols span { height: 6px; border-radius: 2px; background: var(--c); align-self: end; }
.map ol { list-style: none; margin: 0; padding: 0; }
.map li a { display: grid; grid-template-columns: minmax(0, 1fr) repeat(9, 20px); gap: 4px; align-items: center; padding: 4px 0; color: var(--ink); text-decoration: none; font-size: .86rem; border-bottom: 1px solid var(--soft); }
.map li a:hover .nm { color: var(--link); }
.map .nm { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; padding-right: 8px; }
.map i { height: 14px; border-radius: 3px; background: var(--soft); }
.map i.on { background: var(--c); }
@media (prefers-reduced-motion: no-preference) {
  .map i.on { animation: fill .5s ease-out both; }
  .map li:nth-child(n) i.on { animation-delay: calc(var(--d, 0) * 1ms); }
}
@keyframes fill { from { opacity: 0; transform: scaleX(.2); } to { opacity: 1; transform: none; } }

/* legend of layers */
.legend { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 0 32px; }
.legend a { display: grid; grid-template-columns: 14px minmax(0, 1fr); gap: 2px 12px; padding: 14px 0; border-top: 2px solid var(--c); color: var(--ink); text-decoration: none; }
.legend i { grid-row: span 3; width: 14px; height: 14px; border-radius: 3px; background: var(--c); margin-top: 5px; }
.legend b { font: 700 1.05rem var(--f-head); }
.legend span { color: var(--ink-2); font-size: .92rem; }
.legend em { font-style: normal; font-weight: 600; font-size: .86rem; color: var(--c); }
.legend a:hover b { color: var(--link); }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; counter-reset: s; }
.steps li { counter-increment: s; }
.steps b { display: block; font: 700 1.1rem var(--f-head); margin-bottom: 4px; }
.steps b::before { content: counter(s) ". "; color: var(--ink-2); }
.steps span { color: var(--ink-2); }

/* idea lists */
.page-head { padding-top: 40px; }
.page-head h1 i, .layer h2 i { display: inline-block; width: .7em; height: .7em; border-radius: 3px; background: var(--c); margin-right: .3em; vertical-align: .05em; }
.ideas { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.ideas a { display: grid; grid-template-columns: minmax(0, 2fr) auto minmax(0, 3fr); gap: 16px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--rule); color: var(--ink); text-decoration: none; }
.ideas a:hover .nm { color: var(--link); }
.ideas .nm { font-weight: 600; }
.ideas .job { color: var(--ink-2); font-size: .9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.strip { display: inline-grid; grid-template-columns: repeat(9, 11px); gap: 3px; vertical-align: middle; }
.strip i { height: 12px; border-radius: 2px; background: var(--soft); }
.strip i.on { background: var(--c); }

/* idea page */
.idea-head { padding-top: 32px; }
.crumb { font-size: .88rem; color: var(--ink-2); margin: 0 0 12px; }
.idea h1 { font-size: clamp(1.9rem, 4.2vw, 3rem); max-width: 22ch; }
.sub { color: var(--ink-2); max-width: 70ch; }
.idea-head .strip { grid-template-columns: repeat(9, 26px); gap: 4px; margin: 6px 0 18px; }
.idea-head .strip i { height: 18px; border-radius: 3px; }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 14px 28px; margin: 0; background: var(--card); border: 1px solid var(--rule); border-radius: var(--r-md); padding: 18px 20px; }
.facts div:first-child { grid-column: 1 / -1; }
.facts dt { font-size: .84rem; color: var(--ink-2); }
.facts dd { margin: 2px 0 0; font-weight: 500; }
.report { margin: 18px 0 0; }
.layer { border-left: 4px solid var(--c); padding-left: 20px; margin-top: 36px; }
.layer h2 { margin-top: 0; }
.ev { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; max-width: 80ch; }
.ev li p { margin: 0; }
.ev q { display: block; margin: 4px 0 0; color: var(--ink-2); font-style: italic; }
.ev .src { font-size: .86rem; margin-top: 4px; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.ev .src span { color: var(--ink-2); }
.logo { width: 15px; height: 15px; flex: none; }
.gaps { color: var(--ink-2); font-size: .92rem; margin-top: 32px; }
.seg h2 small, .layer h2 small { margin-left: 4px; }
.pat { padding-left: 1.2em; max-width: 80ch; }
.pat > li { margin: 0 0 18px; }
.pat ul { color: var(--ink-2); font-size: .94rem; }

.foot { border-top: 1px solid var(--rule); padding: 24px; color: var(--ink-2); font-size: .88rem; }
.foot p { max-width: 1160px; margin: 0 auto 8px; }
.foot a { margin-right: 12px; }

@media (max-width: 900px) { .hero { grid-template-columns: minmax(0, 1fr); gap: 28px; padding-top: 32px; } .ideas a { grid-template-columns: minmax(0, 1fr) auto; } .ideas .job { grid-column: 1 / -1; } }
@media (max-width: 560px) { main { padding: 0 16px 48px; } .top { padding: 12px 16px; } .layers { display: none; } .map li a, .map-cols { grid-template-columns: minmax(0, 1fr) repeat(9, 12px); gap: 3px; } .idea-head .strip { grid-template-columns: repeat(9, 1fr); } }
/* source map hero */
:root { --contour: #D3DDE5; --pin: #FFFFFF; }
@media (prefers-color-scheme: dark) { :root { --contour: #22313E; --pin: #15222C; } }
.hero { grid-template-columns: minmax(0, 4fr) minmax(0, 6fr); align-items: center; }
.hero-map { min-width: 0; }
.srcmap { width: 100%; height: auto; display: block; }
.srcmap a:hover path:first-child, .srcmap a:focus path:first-child { fill-opacity: .26; }
.srcmap .sm-title { font: 700 14px var(--f-head); }
.srcmap .sm-count { font: 500 11px var(--f-body); fill: var(--ink-2); }
.srcmap .sm-short { font: 700 10px var(--f-body); }
.srcmap .sm-dest { font: 800 17px var(--f-head); fill: var(--ink); }
.mapsec .map { max-width: 760px; }
@media (max-width: 900px) { .hero { grid-template-columns: minmax(0, 1fr); } }
/* Itch Rank and product-type tags */
.ir { display: inline-block; min-width: 2.1em; margin-right: 8px; font: 800 .95em var(--f-head); color: var(--ink); text-align: right; }
.tag { display: inline-block; font: 600 .74rem var(--f-body); color: var(--ink-2); background: var(--soft); border-radius: 999px; padding: 1px 9px; margin-left: 6px; text-decoration: none; font-style: normal; vertical-align: .1em; }
a.tag:hover { color: var(--ink); }
.tags { margin: 0 0 10px; }
.tags .tag { margin: 0 6px 4px 0; font-size: .82rem; padding: 3px 11px; }
.rank { display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: 28px; margin: 8px 0 18px; background: var(--card); border: 1px solid var(--rule); border-radius: var(--r-md); padding: 22px; }
.rank-num { display: flex; flex-direction: column; gap: 2px; }
.rank-num b { font: 800 4.4rem/1 var(--f-head); letter-spacing: -.03em; }
.rank-num span { color: var(--ink-2); font-size: .9rem; }
.rank-num a { font-size: .88rem; margin-top: 8px; }
.rank-parts { display: grid; gap: 14px; }
.rank-parts h3 { margin: 0 0 4px; font-size: 1rem; }
.rank-parts ul { list-style: none; margin: 0; padding: 0; }
.rank-parts li a { display: grid; grid-template-columns: 190px minmax(60px, 1fr) 62px minmax(0, 1.6fr); gap: 12px; align-items: center; padding: 3px 0; color: var(--ink); text-decoration: none; font-size: .88rem; }
.rank-parts li a:hover .lab { color: var(--link); }
.rank-parts .bar { height: 8px; border-radius: 4px; background: var(--soft); overflow: hidden; }
.rank-parts .bar i { display: block; height: 100%; background: var(--c); border-radius: 4px; }
.rank-parts .pts { font-weight: 600; text-align: right; }
.rank-parts .why { color: var(--ink-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.method { border-collapse: collapse; width: 100%; max-width: 900px; font-size: .92rem; margin: 8px 0 20px; }
.method th, .method td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--rule); vertical-align: top; }
.method th { font-weight: 600; color: var(--ink-2); }
@media (max-width: 900px) { .rank { grid-template-columns: minmax(0, 1fr); gap: 16px; } .rank-parts li a { grid-template-columns: minmax(0, 1fr) 80px 56px; } .rank-parts .why { grid-column: 1 / -1; margin-top: -2px; } }
.rank-parts .pts { white-space: nowrap; }
@media (max-width: 900px) { .rank-num { flex-direction: row; flex-wrap: wrap; align-items: baseline; gap: 4px 14px; } .rank-num b { font-size: 3.4rem; } .rank-parts li a { grid-template-columns: minmax(0, 1fr) 70px 52px; gap: 10px; } }