/**
 * The landing page borrows the application's own palette rather than inventing
 * a second one, so what someone sees here is what they get when they run it.
 * The tokens below are a copy of the app's :root block, trimmed to the ones
 * this page actually uses — a copy because the page is served by GitHub Pages
 * from docs/ and cannot reach into public/ at build time.
 */

/*
 * Figtree, self-hosted.
 *
 * The page used to lean on the system stack, which means it looked like a
 * different typeface on every platform and could only ever approximate the
 * house sans. Figtree is the closest freely licensed match: the same compact
 * single-storey g and similar apertures, and within 3% of the same width at
 * the same size and weight.
 *
 * Served from this repository rather than from Google so the page makes no
 * third-party request at all, loads identically offline, and does not hand
 * every visitor to a font CDN. One variable file per subset covers 300 to 900,
 * so every weight on the page costs one request and 20KB.
 *
 * font-display: swap renders the fallback immediately and swaps when the file
 * arrives, so the text is never invisible while the font loads.
 */
@font-face {
  font-family: 'Figtree';
  font-style: normal;
  font-weight: 300 900;
  font-display: swap;
  src: url('fonts/figtree-latin.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: 'Figtree';
  font-style: normal;
  font-weight: 300 900;
  font-display: swap;
  src: url('fonts/figtree-latin-ext.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;
}

/*
 * Light is the default, and it is a plain default rather than a system-derived
 * one: a first visitor sees light whatever their machine prefers. That is the
 * opposite of the app itself, which follows the system — but the app is a thing
 * you live in all day and this is a page someone opens once from a link, where
 * a predictable first impression beats a personalised one.
 *
 * Dark is still here, one click away, and the choice is remembered. It has to
 * hang off an attribute rather than a media query, because a media query cannot
 * be overridden by a button.
 *
 * The palette is the application's own, so what the page promises is what you
 * get when you run it. It is a copy because Pages serves docs/ and cannot reach
 * into public/ at build time.
 */

:root {
  color-scheme: light;

  --bg: #f4f6f8;
  --surface: #ffffff;
  --surface-2: #eef1f5;
  --border: #dde2e9;
  --border-soft: #e8ecf1;
  --text: #1a1e25;
  --muted: #59616f;
  --faint: #878f9d;

  --blocked: #d1242f;
  --ready: #1a7f37;
  --review: #0969da;
  --todo: #0b8ca0;
  --inreview: #8250df;
  --waiting: #9a6700;
  --stale: #6e7781;

  /*
   * Breaking wave: deep water -> turquoise -> seafoam.
   *
   * The seafoam end is deepened well past its dark-theme value because on a
   * near-white page #35c9a4 holds only 1.93:1 against the background, against
   * 7.44:1 at the blue end — so the tail of each letter faded out and the
   * wordmark's second r read as shorter than the first. At #1d9b78 the sweep
   * runs 3.22:1 to 7.44:1, which is roughly the weight of the turquoise middle
   * and keeps every part of the glyph present.
   */
  --wave-1: #0a47b8;
  --wave-2: #0f9bad;
  --wave-3: #1d9b78;

  /* The fallbacks are all sans, and the generic sans-serif last of all, so a
     failed font load can never drop the page into the browser's serif. */
  --sans: 'Figtree', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    'Helvetica Neue', Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, monospace;

  --gutter: 16px;
  /*
   * Two widths, because prose and layout want different ones.
   *
   * Text has an optimal measure of roughly 60 to 75 characters; past that the
   * eye loses the start of the next line. Grids and the board preview have no
   * such limit, and capping everything at the prose width left about 45% of a
   * 1920px screen empty. So paragraphs keep the narrow measure and everything
   * else gets the wide one.
   */
  --max: 1060px;
  --max-wide: 1280px;
}

:root[data-theme='dark'] {
  color-scheme: dark;

  --bg: #0e1014;
  --surface: #15181e;
  --surface-2: #1c2029;
  --border: #252a34;
  --border-soft: #1e222b;
  --text: #e8ebf0;
  --muted: #8d95a5;
  --faint: #656d7d;

  --blocked: #f2555a;
  --ready: #3fb950;
  --review: #58a6ff;
  --todo: #3ac9d8;
  --inreview: #a371f7;
  --waiting: #e3a008;
  --stale: #7d8590;

  --wave-1: #1a5fe0;
  --wave-2: #21bcd4;
  --wave-3: #9df2dd;
}

* { box-sizing: border-box; }

/* Form controls do not inherit font-family, so they are told explicitly. */
button, input, select, textarea { font-family: inherit; }

html { scroll-behavior: smooth; scroll-padding-top: 72px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.wrap {
  width: 100%;
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* The reading column. Anything that is sentences rather than layout keeps the
   narrower measure, so widening the page costs nothing in readability. */
.section-lede,
.hero .lede,
.hero .sub,
.preview-note,
.card p,
.routes li,
.signal span {
  max-width: 68ch;
}
.hero .lede,
.hero .sub,
.preview-note { margin-left: auto; margin-right: auto; }

/* Ocean wave, as in the app: deep water through turquoise to seafoam. */
.wave-text {
  background: linear-gradient(90deg, var(--wave-1) 0%, var(--wave-2) 50%, var(--wave-3) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--wave-2); /* fallback where background-clip is unsupported */
}

/*
 * The doubled r needs a full sweep *per letter*. Stretched across both, each
 * narrow stem gets one flat slice of the range and the pair just reads as a
 * blue letter beside a green one.
 *
 * This used to be done by sizing one gradient to 50% and letting it tile, which
 * silently assumes the two letters are the same width. They are not — kerning
 * and the heading's -2px letter-spacing made the first r 22.91px against the
 * second's 21.76px, so the tile restarted 0.58px *inside* the first r and put a
 * dark blue sliver on its trailing edge. Giving each letter its own element
 * gives each its own full-width sweep, which no amount of kerning can push out
 * of alignment.
 */

/* ------------------------------------------------------------------- nav */

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
}
.nav .wrap {
  display: flex;
  align-items: center;
  gap: 18px;
  height: 56px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  letter-spacing: -0.2px;
  margin-right: auto;
}
.nav-brand img { width: 24px; height: auto; display: block; }
.nav-links { display: flex; gap: 20px; font-size: 14px; color: var(--muted); }
.nav-links a:hover { color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: 10px; }

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
}
.theme-toggle:hover { color: var(--text); border-color: var(--wave-2); }

@media (max-width: 760px) {
  .nav-links { display: none; }
}

/* ----------------------------------------------------------------- hero */

/* The hero holds the canvas, so it has to be a positioning context. */
.hero {
  position: relative;
  padding: 72px 0 48px;
  text-align: center;
  overflow: hidden;
}

/*
 * The sea behind the wordmark. Pinned to the lower half and faded out towards
 * the top, so it never comes near the text it sits behind. Masked rather than
 * just made transparent, because a flat low alpha across the whole box still
 * puts a grey cast over the headline.
 */
.hero-wave {
  position: absolute;
  inset: auto 0 0 0;
  width: 100%;
  height: 82%;
  z-index: 0;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 38%);
  mask-image: linear-gradient(to bottom, transparent, #000 38%);
}

/* Everything else sits above it. */
.hero .wrap { position: relative; z-index: 1; }
.hero img.mark { width: 184px; height: auto; display: block; margin: 0 auto 18px; }

.hero h1 {
  margin: 0 0 14px;
  font-size: clamp(42px, 9vw, 68px);
  font-weight: 700;
  letter-spacing: -2px;
  line-height: 1;
}

/* The tagline sits between the wordmark and the explanation: the wordmark says
   what it is called, this says what it is for, the lede says what it does. */
.hero .tagline {
  margin: 0 0 16px;
  font-size: clamp(18px, 3vw, 23px);
  font-weight: 600;
  letter-spacing: -0.4px;
  line-height: 1.2;
}

.hero .lede {
  margin: 0 auto 10px;
  max-width: 560px;
  font-size: clamp(17px, 2.6vw, 20px);
  color: var(--text);
  line-height: 1.45;
}
.hero .sub {
  margin: 0 auto 26px;
  max-width: 460px;
  color: var(--muted);
  font-size: 15px;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 28px;
}
.badge {
  font-family: var(--mono);
  font-size: 11.5px;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
}

/* ------------------------------------------------------------ code block */

.code {
  position: relative;
  max-width: 460px;
  margin: 0 auto;
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
/* The hero's terminal is a centred 460px block, which suits a block of text
   sitting on its own. In Quick Start it sits directly above a pair of cards,
   and a narrower box above two wider ones reads as a mistake rather than as a
   choice, so there it takes the full column width. */
.code.wide {
  max-width: none;
  margin: 0 0 18px;
}

.code-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-soft);
  font-size: 11.5px;
  color: var(--faint);
  font-family: var(--mono);
}
.code-dots { display: flex; gap: 5px; margin-right: 2px; }
.code-dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--border); display: block; }
.code pre {
  margin: 0;
  padding: 14px 16px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.75;
  overflow-x: auto;
}
.code .p { color: var(--faint); user-select: none; }
.code .c { color: var(--wave-2); }
.code .m { color: var(--faint); font-style: italic; }
.copy {
  position: absolute;
  top: 7px;
  right: 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--muted);
  border-radius: 6px;
  font-size: 11px;
  font-family: var(--mono);
  padding: 3px 8px;
  cursor: pointer;
}
.copy:hover { color: var(--text); border-color: var(--wave-2); }

.cta { display: flex; gap: 10px; justify-content: center; margin-top: 24px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: 9px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
}
.btn:hover { border-color: var(--wave-2); }
.btn.primary {
  background: linear-gradient(95deg, var(--wave-1), var(--wave-2));
  border-color: transparent;
  color: #fff;
}
.btn.primary:hover { filter: brightness(1.08); }

/* ------------------------------------------------------------- sections */

/* Every section gets the divider, including the first. The hero above it is a
   <header> rather than a <section>, so the old :first-of-type exception was
   aimed at a section that does not exist and only ever stripped the rule from
   Your Flow, leaving it floating under the hero. */
section { padding: 56px 0; border-top: 1px solid var(--border-soft); }

.eyebrow {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--faint);
  margin: 0 0 8px;
}
h2 {
  margin: 0 0 10px;
  font-size: clamp(25px, 4.5vw, 32px);
  font-weight: 650;
  letter-spacing: -0.8px;
  line-height: 1.2;
}
.section-lede {
  margin: 0 0 30px;
  max-width: 620px;
  color: var(--muted);
  font-size: 15.5px;
}

/* --------------------------------------------------------- board preview */

/* A mock-up, not a screenshot: a screenshot of the real board would be a
   screenshot of somebody's actual tickets. The rows below are invented, and
   the markup mirrors the app's so the shapes and colours are honest. */
.preview {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  /* Not hidden: the tooltips below have to escape this box. The header bar
     clips itself to the top corners instead, which is all the hidden was
     buying. */
  box-shadow: 0 18px 50px -28px rgba(16, 24, 40, 0.28);
}
.preview-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 14px;
  height: 46px;
  border-bottom: 1px solid var(--border-soft);
  background: var(--surface-2);
  border-radius: 13px 13px 0 0; /* 14 less the 1px border */
  font-size: 13px;
}
.preview-bar .mark { font-weight: 600; letter-spacing: -0.3px; }
.preview-stats { display: flex; gap: 14px; margin-left: 10px; color: var(--muted); font-size: 12.5px; }
.preview-stats b { color: var(--text); font-weight: 600; }
.preview-when { margin-left: auto; color: var(--faint); font-size: 11.5px; font-family: var(--mono); }

.preview-cols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.preview-col { padding: 16px 14px 18px; min-width: 0; }
.preview-col + .preview-col { border-left: 1px solid var(--border-soft); }
.preview-col h3 {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  font-weight: 600;
}

.prow {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-soft);
}
.prow:last-child { border-bottom: none; }
.prow-main { min-width: 0; flex: 1; }
.prow-title {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 13.5px;
  margin-bottom: 4px;
}
.prow-title .text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}
.prow-sub {
  font-size: 11.5px;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.prow-right { flex: 0 0 auto; display: flex; align-items: center; }

.chip {
  display: inline-flex;
  align-items: center;
  font-family: var(--mono);
  font-size: 10.5px;
  padding: 0 5px;
  border-radius: 4px;
  background: var(--surface-2);
  color: var(--muted);
  border: 1px solid var(--border);
  white-space: nowrap;
  line-height: 16px;
  flex: 0 0 auto;
}
.chip.key { color: var(--review); }

.status {
  font-size: 10px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 1px 8px;
  border-radius: 10px;
  border: 1px solid;
  white-space: nowrap;
}
.status.todo { color: var(--todo); border-color: color-mix(in srgb, var(--todo) 40%, transparent); background: color-mix(in srgb, var(--todo) 12%, transparent); }
.status.progress { color: var(--review); border-color: color-mix(in srgb, var(--review) 40%, transparent); background: color-mix(in srgb, var(--review) 12%, transparent); }
.status.inreview { color: var(--inreview); border-color: color-mix(in srgb, var(--inreview) 40%, transparent); background: color-mix(in srgb, var(--inreview) 12%, transparent); }
.status.parked { color: var(--waiting); border-color: color-mix(in srgb, var(--waiting) 40%, transparent); background: color-mix(in srgb, var(--waiting) 12%, transparent); font-style: italic; }
.status.done { color: var(--ready); border-color: color-mix(in srgb, var(--ready) 40%, transparent); background: color-mix(in srgb, var(--ready) 12%, transparent); }

.why { font-weight: 500; }
.why.blocked { color: var(--blocked); }
.why.ready { color: var(--ready); }
.why.waiting { color: var(--waiting); }
.why.review { color: var(--review); }
.why.stale { color: var(--stale); }

/* ------------------------------------------------------- example tooltips */

/*
 * Every part of the mock-up explains itself. The point of the example is to
 * teach the vocabulary, and a legend underneath would make the reader look away
 * from the thing being described.
 *
 * The look is defined once here. Only the trigger differs by device: hover on a
 * pointer, tap on a touch screen. The first version of this was gated behind
 * (hover: hover) entirely, which left half the visitors with no way in at all.
 */

.preview [data-tip] {
  position: relative;
  cursor: help;
}

.preview [data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 9px);
  transform: translateX(-50%) translateY(3px);
  z-index: 30;

  width: max-content;
  max-width: 250px;
  /* The chips set nowrap, and ::after would inherit it. */
  white-space: normal;
  text-align: left;

  padding: 7px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: 0 10px 26px -12px rgba(16, 24, 40, 0.4);

  font-family: var(--sans);
  font-size: 12px;
  font-weight: 400;
  font-style: normal;
  letter-spacing: 0;
  text-transform: none;
  line-height: 1.45;
  color: var(--text);

  opacity: 0;
  pointer-events: none;
  transition: opacity 0.14s, transform 0.14s;
}

/* The header bar is at the top of the card, so its tooltips go below it rather
   than off the top. */
.preview-bar [data-tip]::after {
  bottom: auto;
  top: calc(100% + 9px);
  transform: translateX(-50%) translateY(-3px);
}

/* The outer columns would push a centred tooltip past the card, so theirs are
   anchored to the near edge instead. */
.preview-col:first-child .prow-main [data-tip]::after {
  left: 0;
  transform: translateY(3px);
}
.preview-col:last-child .prow-right [data-tip]::after,
.preview-bar .preview-when[data-tip]::after {
  left: auto;
  right: 0;
  transform: translateY(3px);
}

/* --- shown on hover, where hovering exists --- */
@media (hover: hover) and (pointer: fine) {
  /* A dotted underline is the only standing hint that there is something to
     hover. Anything stronger would compete with the colours the example is
     meant to be demonstrating. */
  .preview [data-tip]::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -2px;
    border-bottom: 1px dotted var(--faint);
    opacity: 0;
    transition: opacity 0.12s;
  }
  .preview:hover [data-tip]::before { opacity: 0.45; }
  .preview [data-tip]:hover::before { opacity: 0; }

  .preview [data-tip]:hover::after { opacity: 1; }
  .preview [data-tip]:hover::after,
  .preview-bar [data-tip]:hover::after { transform: translateX(-50%) translateY(0); }
  .preview-col:first-child .prow-main [data-tip]:hover::after { transform: translateY(0); }
  .preview-col:last-child .prow-right [data-tip]:hover::after,
  .preview-bar .preview-when[data-tip]:hover::after { transform: translateY(0); }
}

/* --- shown on tap, set by the handler at the foot of the page --- */
.preview [data-tip].tip-open::after { opacity: 1; }
.preview [data-tip].tip-open::after,
.preview-bar [data-tip].tip-open::after { transform: translateX(-50%) translateY(0); }
.preview-col:first-child .prow-main [data-tip].tip-open::after { transform: translateY(0); }
.preview-col:last-child .prow-right [data-tip].tip-open::after,
.preview-bar .preview-when[data-tip].tip-open::after { transform: translateY(0); }

/*
 * On a narrow screen a tooltip anchored to a 40px chip has nowhere to go without
 * leaving the viewport. So below this width it anchors to the whole row instead
 * and spans it, which cannot overflow whatever is tapped.
 */
@media (max-width: 720px) {
  .preview .prow,
  .preview .preview-bar,
  .preview .preview-col { position: relative; }

  .preview [data-tip] {
    position: static;
    cursor: pointer;
  }

  .preview [data-tip]::after,
  .preview-bar [data-tip]::after,
  .preview-col:first-child .prow-main [data-tip]::after,
  .preview-col:last-child .prow-right [data-tip]::after,
  .preview-bar .preview-when[data-tip]::after {
    left: 10px;
    right: 10px;
    top: calc(100% - 2px);
    bottom: auto;
    width: auto;
    max-width: none;
    transform: translateY(-3px);
  }

  .preview [data-tip].tip-open::after,
  .preview-bar [data-tip].tip-open::after,
  .preview-col:first-child .prow-main [data-tip].tip-open::after,
  .preview-col:last-child .prow-right [data-tip].tip-open::after,
  .preview-bar .preview-when[data-tip].tip-open::after { transform: translateY(0); }
}

/* The line that tells you the tooltips are there. */
.section-lede.hint {
  margin-top: -18px;
  font-size: 14px;
  color: var(--faint);
}

.preview-note {
  margin: 12px 0 0;
  text-align: center;
  font-size: 12.5px;
  color: var(--faint);
}

@media (max-width: 720px) {
  .preview-cols { grid-template-columns: minmax(0, 1fr); }
  .preview-col + .preview-col { border-left: none; border-top: 1px solid var(--border-soft); }
  .preview-stats { display: none; }
}

/* ---------------------------------------------------------------- cards */

/*
 * Explicit column counts rather than auto-fit, so a short last row can be told
 * to fill the width instead of leaving dead space.
 *
 * auto-fit is tidier to write, but it picks the column count at layout time and
 * CSS cannot ask what it chose — and "how many are on the last row" is purely a
 * function of that count against the number of children. With a fixed count per
 * breakpoint, :nth-child can work it out.
 *
 * Above 840px the grid is six tracks rather than three, so a row can be divided
 * into halves as well as thirds: a card normally spans two, a lone last card
 * spans all six, and a trailing pair takes three each. Three columns' worth of
 * layout, with a half-step available when the arithmetic needs one.
 *
 * The breakpoints reproduce what auto-fit was already doing, so nothing moves
 * at any width: three columns need 3 x 260 + 2 x 14 = 808px of content, which
 * is an 840px viewport once the 16px gutters come off; two need 534px, so 566.
 *
 * Each range is closed at both ends rather than relying on later rules to undo
 * earlier ones — the orphan selectors are more specific than the base rule, so
 * an open-ended range would need its overrides unpicked in a particular order,
 * which is the kind of thing that breaks the next time a rule is added.
 */
.cards {
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 566px) and (max-width: 839.98px) {
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  /* In two columns the only short row is a single trailing card. */
  .cards > :last-child:nth-child(odd) { grid-column: 1 / -1; }
}

@media (min-width: 840px) {
  .cards { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .cards > * { grid-column: span 2; }

  /* One left over: it takes the whole row. Also covers a single-card section. */
  .cards > :last-child:nth-child(3n + 1) { grid-column: span 6; }

  /* Two left over: half each. The pair is the last child at 3n + 2 and the one
     before it, which is necessarily at 3n + 1. */
  .cards > :last-child:nth-child(3n + 2),
  .cards > :nth-last-child(2):nth-child(3n + 1) { grid-column: span 3; }

  /*
   * A grid that wants pairs rather than thirds. Four cards read better as two
   * rows of two than as a row of three above a single card stretched across
   * the width, which is what the orphan rule would otherwise make of them.
   *
   * The resets are listed explicitly because the orphan selectors above carry
   * three pseudo-classes each and would otherwise outrank a plain .pairs > *.
   */
  .cards.pairs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cards.pairs > *,
  .cards.pairs > :last-child:nth-child(3n + 1),
  .cards.pairs > :last-child:nth-child(3n + 2),
  .cards.pairs > :nth-last-child(2):nth-child(3n + 1) { grid-column: auto; }

  /* An odd number still leaves one alone, and it still fills the row. */
  .cards.pairs > :last-child:nth-child(odd) { grid-column: 1 / -1; }
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
}
.card h3 { margin: 0 0 6px; font-size: 16px; font-weight: 600; letter-spacing: -0.2px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.card code {
  font-family: var(--mono);
  font-size: 12px;
  background: var(--surface-2);
  border: 1px solid var(--border-soft);
  border-radius: 5px;
  padding: 1px 5px;
  color: var(--text);
  white-space: nowrap;
}

/* ---------------------------------------------------------------- routes */

/* Each source lists its routes in the order the board tries them. Numbered,
   because the order is the point: the first one asks the least of the reader. */
.card-note { margin: 0 0 12px; color: var(--muted); font-size: 14px; }

.routes {
  margin: 0;
  padding: 0 0 0 18px;
  display: flex;
  flex-direction: column;
  gap: 11px;
  counter-reset: route;
}
.routes li {
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.55;
}
.routes li::marker { color: var(--faint); font-variant-numeric: tabular-nums; }

.tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 1px 6px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--faint);
  margin-right: 6px;
  vertical-align: 1px;
}
/* The route that needs no secret. Marked rather than described, so the reader
   can see which door to try without reading all of them. */
.tag.best {
  color: var(--wave-2);
  border-color: color-mix(in srgb, var(--wave-2) 45%, transparent);
  background: color-mix(in srgb, var(--wave-2) 12%, transparent);
}

/* --------------------------------------------------------------- signals */

/* The same arrangement with this grid's own numbers: a 300px minimum and a 1px
   gap put three columns at 934px and two at 634px. Twelve signals divide evenly
   into both, so nothing is short today — this is here so that a thirteenth does
   not quietly strand one. */
.signals {
  display: grid;
  gap: 1px;
  grid-template-columns: minmax(0, 1fr);
  background: var(--border-soft);
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  overflow: hidden;
}

@media (min-width: 634px) and (max-width: 933.98px) {
  .signals { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .signals > :last-child:nth-child(odd) { grid-column: 1 / -1; }
}

@media (min-width: 934px) {
  .signals { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .signals > * { grid-column: span 2; }
  .signals > :last-child:nth-child(3n + 1) { grid-column: span 6; }
  .signals > :last-child:nth-child(3n + 2),
  .signals > :nth-last-child(2):nth-child(3n + 1) { grid-column: span 3; }
}

.signal {
  display: flex;
  gap: 11px;
  align-items: baseline;
  background: var(--surface);
  padding: 13px 16px;
}
.signal .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex: 0 0 auto;
  background: var(--stale);
  transform: translateY(-1px);
}
.signal.blocked .dot { background: var(--blocked); }
.signal.ready .dot { background: var(--ready); }
.signal.waiting .dot { background: var(--waiting); }
.signal.review .dot { background: var(--review); }
.signal b { font-weight: 600; font-size: 14px; display: block; }
.signal span { color: var(--muted); font-size: 13.5px; }

/* --------------------------------------------------------------- footer */

footer {
  border-top: 1px solid var(--border-soft);
  padding: 34px 0 48px;
  color: var(--faint);
  font-size: 13.5px;
}
footer .wrap { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
footer a { color: var(--muted); }
footer a:hover { color: var(--text); }
footer .right { margin-left: auto; display: flex; gap: 16px; }

@media (max-width: 560px) {
  footer .right { margin-left: 0; }
}