/* ============================================================================
   learnwithsidekick.com: the page layer. Tokens come from /assets/brand.css (the app's own file, copied at build);
   the app's parts from /assets/ui.css. Nothing here declares a colour: every value is a var() from brand.css.
   Geist, self-hosted (OFL, assets/fonts/OFL.txt). Dark by default; the footer's toggle sets html[data-theme].
   ========================================================================== */
@font-face {
  font-family: 'Geist Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url(/assets/fonts/geist-latin-wght-normal.woff2) format('woff2-variations'), url(/assets/fonts/geist-latin-wght-normal.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: 'Geist Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url(/assets/fonts/geist-latin-ext-wght-normal.woff2) format('woff2-variations'), url(/assets/fonts/geist-latin-ext-wght-normal.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
  --mono: ui-monospace, 'SF Mono', Menlo, monospace;
  --wrap: 1120px;
  --wide: 1240px;
  --gutter: 24px;
  --fs-44: 44px;
  --fs-60: 60px;
  --head-h: 56px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--head-h) + 16px); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 420 var(--fs-15)/1.6 var(--ui);
  letter-spacing: var(--track-body);
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums;
}
img { max-width: 100%; height: auto; }
a { color: inherit; text-decoration-color: var(--hair-strong); text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--accent); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 4px; }
::selection { background: var(--tint); }
h1, h2, h3, h4 { letter-spacing: var(--track-head); line-height: 1.15; margin: 0 0 12px; font-weight: 600; text-wrap: balance; }
p, li { text-wrap: pretty; }
h1 { font-size: var(--fs-44); }
h2 { font-size: var(--fs-34); }
h3 { font-size: var(--fs-18); }
p { margin: 0 0 14px; }
code { font-family: var(--mono); font-size: 0.86em; background: var(--surface); border: 1px solid var(--hair); border-radius: 5px; padding: 1px 5px; }
pre { margin: 0 0 18px; padding: 14px 16px; border: 1px solid var(--hair); border-radius: var(--r-card); background: var(--side); overflow-x: auto; font-size: var(--fs-13); line-height: 1.55; }
pre code { border: 0; padding: 0; background: none; font-size: inherit; }
blockquote { margin: 0 0 18px; padding: 2px 0 2px 16px; border-left: 3px solid var(--hair-strong); color: var(--text2); }
hr { border: 0; border-top: 1px solid var(--hair); margin: 32px 0; }
.muted { color: var(--text2); }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--text2); font-size: var(--fs-13); font-weight: 560; letter-spacing: 0.01em; margin-bottom: 12px; }
.eyebrow a { text-decoration: none; }
.lead { font-size: var(--fs-18); line-height: 1.55; color: var(--text2); max-width: 40em; }
.nowrap { white-space: nowrap; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.wrap-wide { max-width: var(--wide); margin: 0 auto; padding: 0 var(--gutter); }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 12px; top: 12px; background: var(--surface); padding: 8px 12px; border-radius: var(--r-ctl); z-index: 100; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

/* ------------------------------------------------------------ header */
.site-header { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 82%, transparent); -webkit-backdrop-filter: saturate(140%) blur(14px); backdrop-filter: saturate(140%) blur(14px); border-bottom: 1px solid transparent; transition: border-color var(--d2) var(--out); }
.site-header.scrolled { border-bottom-color: var(--hair); }
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: var(--head-h); max-width: var(--wide); margin: 0 auto; padding: 0 var(--gutter); }
.brand { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; color: var(--text); }
.wordmark-t { font-weight: 620; font-size: 18px; letter-spacing: -0.03em; }
.site-nav { display: flex; align-items: center; gap: 4px; font-size: var(--fs-14); }
.site-nav a:not(.btn) { color: var(--text2); text-decoration: none; padding: 6px 10px; border-radius: var(--r-ctl); transition: color var(--d1) var(--out), background var(--d1) var(--out); }
.site-nav a:not(.btn):hover { color: var(--text); background: var(--hover); }
.site-nav a[aria-current='page'] { color: var(--text); }
.site-nav .btn { margin-left: 8px; }

/* ------------------------------------------------------------ footer */
.site-footer { border-top: 1px solid var(--hair); margin-top: 128px; padding: 56px 0 48px; color: var(--text2); font-size: var(--fs-14); background: var(--side); }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(4, 1fr); gap: 32px; max-width: var(--wide); margin: 0 auto; padding: 0 var(--gutter); }
.footer-brand .brand { margin-bottom: 12px; }
.footer-brand p { margin: 0 0 16px; max-width: 22em; }
.footer-col h2 { font-size: var(--fs-13); font-weight: 600; color: var(--text); letter-spacing: 0.01em; margin: 6px 0 12px; }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.footer-col a { text-decoration: none; }
.footer-col a:hover { color: var(--text); }
.footer-base { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; max-width: var(--wide); margin: 40px auto 0; padding: 20px var(--gutter) 0; border-top: 1px solid var(--hair); font-size: var(--fs-13); color: var(--text3); }
.theme-toggle { display: inline-flex; gap: 2px; padding: 2px; border-radius: var(--r-ctl); background: var(--hover); }
.theme-toggle button { appearance: none; border: 0; background: none; border-radius: 6px; padding: 4px 10px; font: inherit; font-size: var(--fs-12); font-weight: 520; color: var(--text2); cursor: pointer; display: inline-flex; align-items: center; gap: 6px; }
.theme-toggle button:hover { color: var(--text); }
.theme-toggle button[aria-pressed='true'] { background: var(--surface); color: var(--text); box-shadow: 0 0 0 1px var(--hair); }
.theme-toggle button[aria-pressed='true']::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--signal); }

/* ------------------------------------------------------------ home: hero */
.hero { position: relative; padding-top: 96px; overflow: hidden; }
.hero::before { content: ''; position: absolute; inset: 0 0 auto 0; height: 720px; pointer-events: none;
  background: radial-gradient(circle, var(--hair-strong) 0.9px, transparent 1.3px) 0 0 / 28px 28px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 65% 30%, var(--text) 0%, transparent 70%); mask-image: radial-gradient(ellipse 70% 60% at 65% 30%, var(--text) 0%, transparent 70%); opacity: 0.7; }
.hero::after { content: ''; position: absolute; left: 50%; top: 120px; width: 900px; height: 600px; transform: translateX(-10%); border-radius: 50%; pointer-events: none;
  background: radial-gradient(ellipse at center, var(--tint), transparent 62%); opacity: 0.9; }
.hero-copy { position: relative; z-index: 1; max-width: var(--wide); }
.hero h1 { font-size: var(--fs-60); line-height: 1.02; letter-spacing: -0.035em; margin: 0 0 22px; max-width: 11.5em; }
.hero .lead { margin: 0 0 32px; max-width: 30em; font-size: var(--fs-22); line-height: 1.45; }
.cta-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.close .cta-row { justify-content: center; }
.cta-note { color: var(--text3); font-size: var(--fs-13); margin: 14px 0 0; }
.brew { display: inline-flex; align-items: center; gap: 10px; max-width: 100%; margin-top: 18px; padding: 4px 4px 4px 14px; border: 1px solid var(--hair); border-radius: 10px; background: var(--surface); }
.brew code { border: 0; background: none; padding: 0; overflow-x: auto; white-space: nowrap; font-size: var(--fs-13); color: var(--text2); }
.brew code::before { content: '$ '; color: var(--text3); }
.hero-stage { position: relative; z-index: 1; margin-top: 136px; height: 660px; }
.hero-stage figure { position: relative; margin: 0; height: 100%; }
.hero-stage .app-frame { position: absolute; left: 0; right: 0; top: 0; height: 760px; border-bottom: 0; border-radius: 14px 14px 0 0; box-shadow: 0 -1px 0 var(--hair-strong), var(--pop-shadow); }
.hero-stage::after { content: ''; position: absolute; left: -2px; right: -2px; bottom: 0; height: 220px; pointer-events: none; background: linear-gradient(180deg, transparent, var(--bg) 82%); z-index: 2; }
.hero-hud { position: absolute; right: 16px; bottom: 28px; width: 400px; z-index: 3; }
.hero-hud .hudc { width: 100%; box-shadow: var(--hud-shadow), var(--pop-shadow); }

/* ------------------------------------------------------------ home: sections */
.section { padding-top: 152px; }
.sec-head { max-width: 720px; margin: 0 0 48px; }
.sec-head h2 { margin-bottom: 14px; }
.sec-head .lead { margin: 0; }
.sec-head.left { margin-left: 0; text-align: left; }
.sec-head.left .lead { margin-left: 0; }

.principles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; padding-top: 128px; }
.principle { padding-top: 20px; border-top: 1px solid var(--hair); }
.principle h3 { font-size: var(--fs-18); margin-bottom: 8px; }
.principle p { color: var(--text2); font-size: var(--fs-14); margin: 0; }
.principle a { color: var(--text); }

.bento { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.tile { display: flex; flex-direction: column; min-width: 0; border: 1px solid var(--hair); border-radius: 16px; background: var(--side); overflow: hidden; }
.tile.span2 { grid-column: span 2; }
.tile-text { padding: 28px 28px 0; }
.tile-text h3 { font-size: var(--fs-18); margin-bottom: 6px; }
.tile-text p { color: var(--text2); font-size: var(--fs-14); margin: 0; max-width: 36em; }
.tile-demo { flex: 1; display: flex; flex-direction: column; justify-content: center; padding: 24px 28px 28px; min-width: 0; }
.tile-demo.bleed { padding: 24px 0 0 28px; justify-content: flex-end; }
.tile-demo.bleed > * { border-bottom-right-radius: 0; border-bottom-left-radius: 0; border-right: 0; border-bottom: 0; }
.tile-demo .ds-card { box-shadow: var(--pop-shadow); }
.tile-demo .grade-legend { padding: 8px; border: 1px solid var(--hair); border-radius: var(--r-card); background: var(--surface); }
.tile-demo .trail.compact { padding: 18px; border: 1px solid var(--hair); border-radius: var(--r-card); background: var(--surface); }
.tile-note { margin: 14px 0 0; font-size: var(--fs-12); color: var(--text3); }

.routes-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.routes-more { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-top: 28px; }

.never-list { margin: 0; display: grid; }
.never-list > div { padding: 18px 0; border-top: 1px solid var(--hair); }
.never-list > div:last-child { border-bottom: 1px solid var(--hair); }
.never-list dt { font-weight: 600; font-size: var(--fs-15); margin-bottom: 2px; }
.never-list dd { margin: 0; color: var(--text2); font-size: var(--fs-14); }
.never-grid { display: grid; grid-template-columns: 5fr 7fr; gap: 80px; align-items: start; }
.never-grid .sec-head { margin-bottom: 0; }
.never-note { margin-top: 18px; font-size: var(--fs-14); color: var(--text2); }

.close { padding-top: 144px; text-align: center; }
.close h2 { font-size: var(--fs-44); letter-spacing: -0.03em; max-width: 14em; margin: 0 auto 24px; }
.doors { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 96px; text-align: left; }
.door { display: flex; flex-direction: column; gap: 6px; padding: 24px 0 0; border-top: 1px solid var(--hair); text-decoration: none; }
.door:hover b { text-decoration: underline; text-decoration-color: var(--hair-strong); text-underline-offset: 3px; }
.door b { font-weight: 600; font-size: var(--fs-15); }
.door span { color: var(--text2); font-size: var(--fs-14); }

/* ------------------------------------------------------------ inner pages */
.page { padding-top: 64px; }
.page.narrow { max-width: 820px; }
.page-head { margin-bottom: 40px; }
.page-head h1 { font-size: var(--fs-44); letter-spacing: -0.03em; }
.page-head .lead { margin-bottom: 0; }
.crumbs { display: flex; align-items: center; gap: 8px; font-size: var(--fs-13); color: var(--text3); margin-bottom: 24px; }
.crumbs a { color: var(--text2); text-decoration: none; }
.crumbs a:hover { color: var(--text); }
.prose { max-width: 44em; }
.prose h2 { font-size: var(--fs-22); margin-top: 44px; }
.prose h3 { font-size: var(--fs-18); margin-top: 30px; }
.prose h4 { font-size: var(--fs-15); margin-top: 24px; }
.prose ul, .prose ol { padding-left: 22px; margin: 0 0 16px; }
.prose li { margin-bottom: 6px; }
.prose li::marker { color: var(--text3); }
.prose p, .prose li { color: var(--text2); }
.prose strong { color: var(--text); font-weight: 600; }
.prose a { color: var(--text); }
.prose h2, .prose h3, .prose h4 { position: relative; }
.prose .anchor { position: absolute; left: -1.1em; width: 1.1em; color: var(--text3); text-decoration: none; opacity: 0; transition: opacity var(--d1) var(--out); font-weight: 400; }
.prose h2:hover .anchor, .prose h3:hover .anchor, .prose h4:hover .anchor, .prose .anchor:focus { opacity: 1; }
.table-wrap { margin: 0 0 20px; overflow-x: auto; border: 1px solid var(--hair); border-radius: var(--r-card); }
.table-wrap table { border-collapse: collapse; width: 100%; font-size: var(--fs-13); line-height: 1.5; }
.table-wrap th { text-align: left; font-size: var(--fs-12); font-weight: 560; color: var(--text2); padding: 10px 14px; background: var(--side); border-bottom: 1px solid var(--hair); white-space: nowrap; }
.table-wrap td { padding: 10px 14px; border-top: 1px solid var(--hair); vertical-align: top; color: var(--text2); }
.table-wrap tr:first-child td { border-top: 0; }
.table-wrap td:first-child { color: var(--text); font-weight: 520; }
.table-wrap .a-center { text-align: center; }
.table-wrap .a-right { text-align: right; }
.legal .draft-note { padding: 12px 16px; border: 1px solid var(--hair); border-radius: var(--r-card); background: var(--surface); }
.link-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 40px; }
.link-card { display: flex; flex-direction: column; gap: 6px; padding: 20px; border: 1px solid var(--hair); border-radius: var(--r-card); background: var(--surface); text-decoration: none; }
.link-card .rt-ico { margin-bottom: 6px; }
.link-card strong { font-weight: 600; }
.link-card span { color: var(--text2); font-size: var(--fs-14); }
.link-card:hover { border-color: var(--hair-strong); background: var(--hover); }
.cta-band { display: flex; align-items: center; justify-content: space-between; gap: 24px 40px; flex-wrap: wrap; margin-top: 72px; padding: 32px; border: 1px solid var(--hair); border-radius: 16px; background: var(--side); }
.cta-band > div:first-child { max-width: 36em; }
.cta-band h2 { font-size: var(--fs-22); }
.cta-band p { color: var(--text2); margin: 0; }
.cta-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* empty state (404): the mark as a 48 px hairline, one line, one action */
.empty-state { display: flex; flex-direction: column; align-items: center; gap: 16px; padding: 120px 0 40px; text-align: center; }
.empty-state .mark { color: var(--text3); }
.empty-state h1 { font-size: var(--fs-22); margin: 0; }
.empty-state p { color: var(--text2); margin: 0; }

/* ------------------------------------------------------------ docs */
.docs-page { max-width: var(--wide); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
.docs { display: grid; grid-template-columns: 240px minmax(0, 1fr) 200px; gap: 48px; align-items: start; }
.docs-nav { position: sticky; top: calc(var(--head-h) + 24px); display: flex; flex-direction: column; gap: 2px; font-size: var(--fs-14); }
.docs-nav a { display: flex; align-items: center; gap: 10px; padding: 7px 10px; border-radius: var(--r-ctl); color: var(--text2); text-decoration: none; }
.docs-nav a .ico { color: var(--text3); }
.docs-nav a:hover { background: var(--hover); color: var(--text); }
.docs-nav a.on { background: var(--selected); color: var(--text); font-weight: 560; }
.docs-nav a.on .ico { color: var(--accent-text); }
.docs-nav .docs-nav-h { font-size: var(--fs-12); font-weight: 600; color: var(--text3); letter-spacing: 0.01em; padding-bottom: 10px; }
.docs-nav .docs-nav-h.on { background: none; color: var(--text); }
.docs-body { min-width: 0; max-width: var(--col); }
.docs-body > h1:first-child { font-size: var(--fs-44); letter-spacing: -0.03em; margin-bottom: 20px; }
.docs-edit { margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--hair); font-size: var(--fs-13); }
.docs-edit a { display: inline-flex; align-items: center; gap: 6px; color: var(--text2); text-decoration: none; }
.docs-edit a:hover { color: var(--text); }
.docs-toc { position: sticky; top: calc(var(--head-h) + 24px); display: flex; flex-direction: column; gap: 6px; font-size: var(--fs-13); }
.docs-toc-h { font-size: var(--fs-12); font-weight: 600; color: var(--text3); margin: 0 0 4px; }
.docs-toc a { color: var(--text2); text-decoration: none; line-height: 1.4; }
.docs-toc a:hover { color: var(--text); }
.doc-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.doc-card { display: flex; flex-direction: column; gap: 4px; padding: 20px; border: 1px solid var(--hair); border-radius: var(--r-card); background: var(--surface); text-decoration: none; transition: border-color var(--d1) var(--out); }
.doc-card:hover { border-color: var(--hair-strong); }
.doc-card .rt-ico { margin-bottom: 10px; }
.doc-card-t { font-weight: 600; }
.doc-card-s { color: var(--text2); font-size: var(--fs-14); }
.changelog h2 { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; padding-top: 28px; border-top: 1px solid var(--hair); }
.changelog h2:first-of-type { border-top: 0; padding-top: 0; }
.changelog h2:first-of-type::after { content: 'Newest'; order: 2; display: inline-flex; align-items: center; height: 20px; padding: 0 8px; border-radius: 999px; font-size: 11px; font-weight: 600; letter-spacing: 0.02em; color: var(--accent-text); background: var(--tint); }
.rel-link { order: 3; display: inline-flex; align-items: center; gap: 4px; font-size: var(--fs-12); font-weight: 520; color: var(--text2); text-decoration: none; }

/* ------------------------------------------------------------ download */
.dl-grid { display: grid; grid-template-columns: 7fr 5fr; gap: 24px; align-items: start; }
.dl-main { padding: 32px; border: 1px solid var(--hair); border-radius: 18px; background: var(--side); }
.dl-main .app-icon { display: grid; place-items: center; width: 72px; height: 72px; margin-bottom: 20px; border-radius: 18px; background: var(--surface); border: 1px solid var(--hair); box-shadow: var(--pop-shadow); }
.dl-main h2 { font-size: var(--fs-26); }
.dl-facts { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; margin: 24px 0 0; font-size: var(--fs-14); }
.dl-facts dt { color: var(--text3); }
.dl-facts dd { margin: 0; color: var(--text2); min-width: 0; overflow-wrap: anywhere; }
.dl-facts code { font-size: 12px; word-break: break-all; }
.dl-grid > *, .plans > * { min-width: 0; }
.dl-side { display: flex; flex-direction: column; gap: 16px; }
.dl-card { padding: 24px; border: 1px solid var(--hair); border-radius: 16px; background: var(--surface); }
.dl-card h2 { font-size: var(--fs-18); margin-bottom: 10px; }
.dl-card p, .dl-card li { color: var(--text2); font-size: var(--fs-14); }
.dl-card ul { margin: 0; padding-left: 18px; }
.dl-card li { margin-bottom: 6px; }
.dl-card li strong { color: var(--text); font-weight: 560; }
.dl-card .brew { display: flex; margin: 4px 0 10px; }
.dl-card .brew code { flex: 1; }

/* ------------------------------------------------------------ supporter */
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: stretch; }
.plan { display: flex; flex-direction: column; padding: 32px; border: 1px solid var(--hair); border-radius: 18px; background: var(--side); }
.plan.featured { border-color: color-mix(in srgb, var(--accent) 55%, transparent); box-shadow: 0 0 0 4px var(--tint); background: var(--surface); }
.plan-k { display: inline-flex; align-items: center; gap: 8px; font-size: var(--fs-13); font-weight: 600; color: var(--text2); margin-bottom: 14px; }
.plan-k .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--signal); }
.plan h2 { font-size: var(--fs-34); margin-bottom: 4px; }
.plan .price-note { color: var(--text2); font-size: var(--fs-14); margin-bottom: 24px; }
.plan ul { list-style: none; margin: 0 0 28px; padding: 0; display: grid; gap: 10px; }
.plan li { display: grid; grid-template-columns: 18px 1fr; gap: 10px; color: var(--text2); font-size: var(--fs-14); }
.plan li .ico { margin-top: 3px; color: var(--accent-text); }
.plan li strong { color: var(--text); font-weight: 560; }
.plan .cta-actions { margin-top: auto; }
.plan-foot { margin-top: 24px; font-size: var(--fs-14); color: var(--text2); text-align: center; }

/* ------------------------------------------------------------ community */
.lib-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; padding-bottom: 24px; margin-bottom: 24px; border-bottom: 1px solid var(--hair); }
.lib-head h1 { margin-bottom: 8px; }
.lib-head .meta { font-size: var(--fs-14); color: var(--text2); }
.lib-head .lead { margin-top: 12px; }
.filters { display: flex; flex-direction: column; gap: 14px; margin-bottom: 24px; }
.filter-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.filter-row > .filter-k { font-size: var(--fs-12); font-weight: 560; color: var(--text2); min-width: 64px; }
.kind-chips { border: 0; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; min-width: 0; }
.kind-chips legend { float: left; font-size: var(--fs-12); font-weight: 560; color: var(--text2); min-width: 64px; margin-right: 10px; padding: 0; line-height: 28px; }
.result-count { font-size: var(--fs-13); color: var(--text3); margin: 0 0 14px; }
.empty { grid-column: 1 / -1; padding: 40px 0; color: var(--text2); text-align: center; }

/* a route page */
.route-page { max-width: 880px; }
.route-head { margin-bottom: 16px; }
.route-head h1 { font-size: var(--fs-44); letter-spacing: -0.03em; }
.route-facts { display: grid; gap: 10px; margin: 24px 0; }
.route-facts > div { display: grid; grid-template-columns: 96px 1fr; gap: 12px; align-items: baseline; }
.route-facts dt { color: var(--text3); font-size: var(--fs-13); }
.route-facts dd { margin: 0; color: var(--text2); }
.route-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.route-head .hint { margin-top: 12px; }
.route-sec { margin-top: 56px; }
.route-sec h2 { display: flex; align-items: center; gap: 10px; font-size: var(--fs-22); padding-bottom: 12px; border-bottom: 1px solid var(--hair); margin-bottom: 8px; }
.route-sec h2 .ico { color: var(--accent-text); }
.sec-note { font-size: var(--fs-13); color: var(--text3); margin: 0 0 18px; }

/* forms (the submit page) */
.submit-layout { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 40px; align-items: start; }
.submit-form fieldset { border: 0; padding: 0; margin: 0 0 32px; min-width: 0; }
.submit-form legend { font-size: var(--fs-18); font-weight: 600; letter-spacing: var(--track-head); margin-bottom: 16px; padding: 0; }
.field { display: block; margin-bottom: 18px; }
.field > span, .field-head label { display: block; font-weight: 560; font-size: var(--fs-13); color: var(--text2); margin-bottom: 6px; }
.field em { font-style: normal; color: var(--text3); font-weight: 400; }
.field small { display: block; color: var(--text3); font-size: var(--fs-12); margin-top: 6px; }
.field-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.field-tools { display: inline-flex; gap: 16px; flex-wrap: wrap; }
.file-button { position: relative; overflow: hidden; }
.file-button input { position: absolute; opacity: 0; inset: 0; cursor: pointer; font-size: 0; }
.file-button:has(input:focus-visible) { outline: 2px solid var(--focus); outline-offset: 2px; }
.link-button { background: none; border: 0; padding: 0; font: inherit; font-size: var(--fs-13); color: var(--text2); text-decoration: underline; text-decoration-color: var(--hair-strong); text-underline-offset: 3px; cursor: pointer; }
.link-button:hover { color: var(--text); }
input:not([type=checkbox]):not([type=file]):not([type=radio]), select, textarea {
  width: 100%; font: inherit; font-size: var(--fs-14); color: var(--text);
  background: var(--surface); border: 1px solid var(--hair-strong); border-radius: var(--r-ctl); padding: 9px 12px;
  transition: border-color var(--d1) var(--out), box-shadow var(--d1) var(--out);
}
select { width: auto; min-width: 180px; height: 34px; padding: 0 30px 0 10px; font-size: var(--fs-13); font-weight: 520; }
textarea { font-family: var(--mono); font-size: var(--fs-13); line-height: 1.55; resize: vertical; min-height: 320px; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--focus); }
.check { display: grid; grid-template-columns: 20px 1fr; gap: 10px; align-items: start; color: var(--text2); font-size: var(--fs-14); }
.check input { width: 16px; height: 16px; margin: 3px 0 0; accent-color: var(--accent); }
.submit-row { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.result { margin-top: 20px; padding: 16px 18px; border-radius: var(--r-card); border: 1px solid var(--hair); background: var(--surface); }
.result.ok { border-color: var(--accent); }
.result.bad { border-color: var(--danger); }
.result p:last-child { margin-bottom: 0; }
.check-panel { position: sticky; top: calc(var(--head-h) + 24px); border: 1px solid var(--hair); border-radius: var(--r-card); background: var(--surface); padding: 20px; max-height: calc(100vh - var(--head-h) - 48px); overflow: auto; }
.check-panel h2 { font-size: var(--fs-18); }
.check-state { color: var(--text2); font-size: var(--fs-14); display: flex; align-items: center; gap: 8px; }
.check-state::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--text3); flex: none; }
.check-state.ok { color: var(--accent-text); }
.check-state.ok::before { background: var(--signal); box-shadow: 0 0 0 3px var(--tint); }
.check-state.bad { color: var(--danger); }
.check-state.bad::before { background: var(--danger); }
.issues { list-style: none; padding: 0; margin: 0 0 12px; display: grid; gap: 6px; font-size: var(--fs-13); }
.issues li { position: relative; padding: 8px 10px 8px 14px; border-radius: var(--r-ctl); background: var(--bg); color: var(--text2); overflow-wrap: anywhere; }
.issues li::before { content: ''; position: absolute; left: 0; top: 8px; bottom: 8px; width: 3px; border-radius: 0 3px 3px 0; background: var(--hair-strong); }
.issues.errors li { color: var(--text); }
.issues.errors li::before { background: var(--neg); }
.issues.warnings li::before { background: repeating-linear-gradient(180deg, var(--mid) 0 4px, transparent 4px 7px); }
.preview summary { cursor: pointer; color: var(--text2); font-size: var(--fs-14); margin-top: 8px; }
.preview-body { margin-top: 12px; font-size: var(--fs-14); }
.preview-body h1 { font-size: var(--fs-26); }
.preview-body .route-sec { margin-top: 28px; }
.preview-body .route-sec h2 { font-size: var(--fs-18); }

/* ------------------------------------------------------------ responsive */
@media (max-width: 1100px) {
  .app-frame { grid-template-columns: 252px minmax(0, 1fr); }
  .app-frame .sw { font-size: 12px; padding: 5px 4px; }
  .routes-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .docs { grid-template-columns: 220px minmax(0, 1fr); }
  .docs-toc { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 900px) {
  :root { --fs-60: 44px; --fs-44: 34px; --fs-34: 28px; }
  .principles { grid-template-columns: 1fr 1fr; gap: 28px 24px; padding-top: 80px; }
  .bento { grid-template-columns: 1fr; }
  .tile.span2 { grid-column: auto; }
  .never-grid { grid-template-columns: 1fr; gap: 28px; }
  .doors { grid-template-columns: 1fr; }
  .section { padding-top: 104px; }
  .close { padding-top: 112px; }
  .hero-stage { height: 520px; }
  .hero-hud { width: 340px; right: 8px; bottom: 24px; }
  .never-grid { gap: 32px; }
  .dl-grid, .plans, .submit-layout { grid-template-columns: minmax(0, 1fr); }
  .check-panel { position: static; max-height: none; }
  .docs { grid-template-columns: 1fr; gap: 24px; }
  .docs-nav { position: static; flex-direction: row; flex-wrap: wrap; gap: 4px; padding-bottom: 16px; border-bottom: 1px solid var(--hair); }
  .docs-nav .docs-nav-h { width: 100%; padding-bottom: 4px; }
  .doc-cards { grid-template-columns: 1fr; }
  .link-cards { grid-template-columns: 1fr; }
}
/* the Review window does not fit a phone: the sidebar goes, the main pane stays */
@media (max-width: 760px) {
  .app-frame { grid-template-columns: minmax(0, 1fr); height: 640px; border-radius: 12px; }
  .af-side, .af-chrome { display: none; }
  .app-frame .mh { padding: var(--s4) var(--s4) 0; }
  .af-title { font-size: var(--fs-18); line-height: 26px; }
  .app-frame .meta { font-size: var(--fs-12); }
  .hq-label { display: none; }
  .app-frame .tabs { gap: var(--s4); }
  .app-frame .panel { padding: var(--s4) var(--s4) var(--s8); }
  .rv-head { flex-direction: column; align-items: stretch; gap: var(--s4); padding: var(--s4); }
  .rv-score { flex-direction: row; justify-content: flex-start; }
  .rv-line, .rv-better { grid-template-columns: 1fr; gap: 2px; font-size: var(--fs-14); }
  .rv-why, .rv-actions { margin-left: 0; }
  .rv-meta { display: none; }
}
@media (max-width: 560px) {
  :root { --gutter: 16px; --fs-60: 36px; --fs-44: 30px; --fs-34: 26px; }
  .hero { padding-top: 56px; }
  .hero .lead { font-size: var(--fs-18); }
  .hero-stage { height: 440px; margin-top: 72px; }
  .hero-hud { display: none; }
  .doors { gap: 8px; }
  .site-nav a.hide-sm { display: none; }
  .site-nav a:not(.btn) { padding: 6px 6px; }
  .site-nav { gap: 0; }
  .site-nav .btn { margin-left: 4px; }
  .wordmark-t { font-size: 17px; }
  .principles { grid-template-columns: 1fr; }
  .routes-row { grid-template-columns: 1fr; }
  .grade-legend { grid-template-columns: 1fr; }
  .tile-text { padding: 22px 20px 0; }
  .tile-demo { padding: 20px; }
  .tile-demo.bleed { padding: 20px 0 0 20px; }
  .brew { display: flex; text-align: left; }
  .brew code { white-space: normal; overflow-wrap: anywhere; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .route-facts > div { grid-template-columns: 1fr; gap: 2px; }
  .hudc .vad, .hudc .pchip.auto { display: none; }
  .hudc .line { font-size: 17px; }
  .call-stage { padding: var(--s3); }
  .dl-main, .plan { padding: 22px; }
  .cta-band { padding: 22px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 120ms !important; animation-delay: 0ms !important; animation-iteration-count: 1 !important; transition-duration: 0ms !important; scroll-behavior: auto !important; }
  .tn.current, .hudc .vad .who.on b, .ds-caret, .hud-progress i { animation: none !important; }
}
.cta-row.cta-left { justify-content: flex-start; margin: 22px 0 0; }
.supporter-why { margin: 72px auto 0; }
.rt-ships { display: inline-flex; align-items: center; gap: 5px; height: 28px; padding: 0 6px 0 2px; font-size: var(--fs-12); font-weight: 560; color: var(--text2); white-space: nowrap; }
.rt-ships .ico { color: var(--accent-text); }
.rt-ships.lg { height: 40px; padding: 0 var(--s3) 0 0; font-size: var(--fs-14); }