@font-face { font-family: "IBM Plex Sans"; src: url(fonts/PlexSans.woff2) format("woff2"); font-weight: 100 700; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url(fonts/PlexMono-400.woff2) format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url(fonts/PlexMono-500.woff2) format("woff2"); font-weight: 500; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url(fonts/PlexMono-600.woff2) format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Pixelify Sans"; src: url(fonts/PixelifySans.woff2) format("woff2"); font-weight: 400 700; font-display: swap; }
@font-face { font-family: "Silkscreen"; src: url(fonts/Silkscreen-400.woff2) format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Silkscreen"; src: url(fonts/Silkscreen-700.woff2) format("woff2"); font-weight: 700; font-display: swap; }

/* One light look: a metro map on cool white. */
:root {
  color-scheme: light;

  /* the four colours of the Flide logo, and darker versions of each for text */
  --state: #3a86ff;  --state-d: #1f5fd1;  --state-t: #a9c6ff;
  --q1: #ef476f;     --q1-d: #c42a52;     --q1-t: #ffb3c4;
  --q2: #f28e2b;     --q2-d: #a95a00;     --q2-t: #ffcc94;
  --q3: #00a890;     --q3-d: #007a69;     --q3-t: #8fe3d2;

  --paper: #f5f7fb;
  --dot: #d6dce8;
  --card: #ffffff;
  --ink: #18202f;
  --text: #2c3549;
  --dim: #5b6680;
  --line: #dde3ee;
  --track: #edf1f7;
  --cache: #c9d8f5;
  --redo: #e5484d;
  --delim: #ffc93c;
  --vllm: #8a94ab;
  --sgl: #c3c9d6;

  --shadow: 4px 4px 0 var(--ink);
  --wrap: 1060px;
  --gut: 16px;

  --f-body: "IBM Plex Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-num: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
  --f-pix: "Pixelify Sans", "IBM Plex Sans", ui-sans-serif, sans-serif;
  --f-sign: "Silkscreen", "Pixelify Sans", ui-monospace, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  color: var(--text);
  background-color: var(--paper);
  background-image: radial-gradient(var(--dot) 1.2px, transparent 1.3px);
  background-size: 16px 16px;
  font: 400 17.5px/1.65 var(--f-body);
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--q2-t); color: var(--ink); }
a { color: var(--ink); text-decoration-color: var(--q2); text-underline-offset: 4px; text-decoration-thickness: 2px; }
a:hover { color: var(--q1-d); }
:focus-visible { outline: 3px solid var(--q2); outline-offset: 3px; }
code { font: 500 .9em var(--f-num); color: var(--ink); }
p code, dd code, li code { background: var(--track); border: 1px solid var(--line); padding: 1px 5px; white-space: nowrap; }
img, svg, canvas { display: block; max-width: 100%; }
h1, h2, h3 { margin: 0; color: var(--ink); }
p { margin: 0; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: var(--gut); }
@media (min-width: 800px) { :root { --gut: 32px; } }

/* a framed object: ink edge, hard shadow, the way a printed sticker sits on a map */
.frame, .panel, .term, .card, .gauge, .tickets li {
  background: var(--card);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow);
}
/* every title bar starts with the fork: three branch colours */
.forkmark {
  flex: none; width: 34px; height: 10px;
  background: linear-gradient(90deg, var(--q1) 0 10px, transparent 10px 12px, var(--q2) 12px 22px, transparent 22px 24px, var(--q3) 24px 34px);
}

/* ---------- top bar ---------- */
.bar {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50;
  display: flex; align-items: center; gap: 16px;
  height: 62px; padding-inline: var(--gut);
  background: var(--card);
  border-bottom: 2px solid var(--ink);
}
.bar::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -6px; height: 4px;
  background: linear-gradient(90deg, var(--state) 0 25%, var(--q1) 25% 50%, var(--q2) 50% 75%, var(--q3) 75%);
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand img { width: 34px; height: 28px; image-rendering: pixelated; }
.brand span { font: 700 21px/1 var(--f-sign); color: var(--ink); letter-spacing: 2px; }
.bar-links { margin-left: auto; display: flex; align-items: center; gap: 2px; }
.bar-links a {
  display: inline-flex; align-items: center; gap: 7px;
  font: 600 16px/1 var(--f-pix); text-decoration: none; color: var(--ink);
  padding: 9px 10px;
}
.bar-links a svg { width: 18px; height: 18px; flex: none; }
.bar-links a:hover { background: var(--q2-t); color: var(--ink); }
.bar-links .bar-cta { background: var(--ink); color: #fff; margin-left: 8px; box-shadow: 3px 3px 0 var(--q2); }
.bar-links .bar-cta:hover { background: var(--state-d); color: #fff; }
@media (max-width: 600px) {
  .bar { gap: 8px; }
  .brand span { font-size: 17px; }
  .bar-links a { padding: 8px 7px; font-size: 14px; gap: 5px; }
  .bar-links a span { display: none; }
  .bar-links a svg { width: 22px; height: 22px; }
  .bar-links .bar-cta { margin-left: 4px; }
}

/* ---------- metro rail ---------- */
.rail { display: none; }
@media (min-width: 1440px) {
  .rail { display: block; position: fixed; left: 28px; top: 50%; transform: translateY(-50%); z-index: 40; }
  .rail ol { list-style: none; margin: 0; padding: 0; position: relative; }
  .rail ol::before { content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 6px; background: var(--cache); }
  .rail ol::after {
    content: ""; position: absolute; left: 7px; top: 8px; width: 6px; height: var(--fill, 0px);
    background: var(--state); transition: height .3s steps(6);
  }
  .rail li { position: relative; z-index: 1; }
  .rail a { display: flex; align-items: center; gap: 12px; padding: 9px 0; text-decoration: none; }
  .rail i { width: 20px; height: 20px; background: var(--card); border: 3px solid var(--ink); }
  .rail span { font: 600 14px/1 var(--f-pix); color: var(--dim); }
  .rail a:hover span { color: var(--ink); }
  .rail a.past i { background: var(--state); }
  .rail a.here i { background: var(--q2); }
  .rail a.here span { color: var(--ink); }
}
@media (prefers-reduced-motion: reduce) { .rail ol::after { transition: none; } }

/* ---------- hero ---------- */
.hero { padding-block: 60px 30px; }
.brandrow { display: flex; align-items: center; justify-content: center; gap: 28px; }
.brandrow .metro { flex: 0 1 420px; min-width: 0; margin: 0; }
.hero-word { flex: 0 1 520px; min-width: 0; }
.hero-word svg { width: 100%; height: auto; }
.hero-title {
  margin-top: 28px; text-align: center;
  font: 700 clamp(20px, 5vw, 26px)/1.3 var(--f-pix);
  text-wrap: balance;
}
/* one line wherever it fits: the title is about 31.5 times its font size wide */
@media (min-width: 900px) {
  .hero-title { white-space: nowrap; font-size: min(30px, calc((min(100vw, 1060px) - 64px) / 32)); }
}
@media (max-width: 600px) { .brandrow { gap: 14px; } }
.hero-title em { font-style: normal; color: var(--state-d); }
.authors, .affils { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 22px; text-align: center; }
.authors { margin-top: 20px; font-size: 18px; font-weight: 500; color: var(--ink); }
.affils { margin-top: 4px; font-size: 15px; color: var(--dim); }
sup { font-size: .66em; font-weight: 600; color: var(--q2-d); margin-left: 1px; }

.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin-top: 28px; }
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 11px 18px;
  background: var(--card); color: var(--ink);
  border: 2px solid var(--ink); box-shadow: 3px 3px 0 var(--ink);
  font: 600 17px/1 var(--f-pix); text-decoration: none; cursor: pointer;
  transition: transform .08s steps(2), box-shadow .08s steps(2);
}
.btn svg { width: 18px; height: 18px; flex: none; }
.btn code { font: 500 15px/1 var(--f-num); }
.btn:hover { background: var(--q2-t); color: var(--ink); transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--ink); }
.btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--ink); }
.btn-blue { background: var(--state); }
.btn-blue:hover { background: var(--state-t); }
@media (prefers-reduced-motion: reduce) { .btn { transition: none; } }

.metro canvas { margin: 0 auto; image-rendering: pixelated; }

.lede {
  max-width: 720px; margin: 28px auto 0; text-align: center;
  font-size: 19px; line-height: 1.65; color: var(--text);
}

.tickets {
  list-style: none; padding: 0; margin: 40px 0 0;
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px;
}
.tickets li { padding: 0 0 14px; }
.tickets li::before { content: ""; display: block; height: 10px; background: var(--c); border-bottom: 2px solid var(--ink); }
.tickets b { display: block; padding: 12px 16px 0; font: 600 30px/1.1 var(--f-num); color: var(--ink); font-variant-numeric: tabular-nums; }
.tickets span { display: block; padding: 6px 16px 0; font-size: 15px; line-height: 1.45; color: var(--text); }
.t-state { --c: var(--state); } .t-q1 { --c: var(--q1); } .t-q2 { --c: var(--q2); } .t-q3 { --c: var(--q3); }
@media (max-width: 860px) { .tickets { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; } }

/* ---------- swatches ---------- */
.sw { display: inline-block; width: 13px; height: 13px; vertical-align: -1px; border: 1.5px solid var(--ink); }
.sw-state { background: var(--state); } .sw-cache { background: var(--cache); } .sw-redo { background: var(--redo); }
.sw-delim { background: var(--delim); } .sw-q1 { background: var(--q1); } .sw-q2 { background: var(--q2); }
.sw-q3 { background: var(--q3); } .sw-vllm { background: var(--vllm); } .sw-sgl { background: var(--sgl); }
.sw-block { width: 4px; background: var(--ink); border: 0; }
.sw-flide { width: 34px; border: 0; background: linear-gradient(90deg, var(--q1) 0 10px, transparent 10px 12px, var(--q2) 12px 22px, transparent 22px 24px, var(--q3) 24px 34px); }

/* ---------- stops ---------- */
.stop { padding-block: 70px 10px; }
.sign { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.sign-no {
  flex: none; display: grid; place-items: center;
  width: 50px; height: 50px;
  background: var(--sc); color: var(--ink);
  border: 2px solid var(--ink); box-shadow: 3px 3px 0 var(--ink);
  font: 700 18px/1 var(--f-sign);
}
.sign h2 { font: 700 clamp(24px, 3.2vw, 34px)/1.2 var(--f-pix); text-wrap: balance; }
#fork { --sc: var(--q1-t); --st: var(--q1-t); }
#speed { --sc: var(--q2-t); --st: var(--q2-t); }
#exact { --sc: var(--q3-t); --st: var(--q3-t); }
#agents { --sc: var(--state-t); --st: var(--state-t); }
#inside { --sc: var(--q1-t); --st: var(--q1-t); }
#serve { --sc: var(--q2-t); --st: var(--q2-t); }

.body { max-width: none; }
.body.small { font-size: 15.5px; color: var(--dim); margin-top: 16px; }

.panel { margin-top: 28px; padding-bottom: 18px; }
.panel-head {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px;
  padding: 10px 14px; background: var(--st, var(--state-t)); border-bottom: 2px solid var(--ink);
}
.chip { font: 600 16px/1.2 var(--f-pix); color: var(--ink); }
.panel-head .spacer { flex: 1; }
.panel-unit { font-size: 14.5px; color: var(--ink); }
.legend {
  display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center;
  margin: 16px 18px 0; font-size: 14.5px; color: var(--ink);
}
.legend span { display: inline-flex; align-items: center; gap: 7px; }
.legend .legend-note { flex-basis: 100%; display: block; }
.note { font-size: 15px; color: var(--dim); margin: 12px 18px 0; }

/* stepper and size buttons */
.stepper { display: inline-flex; align-items: center; gap: 10px; font-size: 15px; color: var(--ink); }
.stepper button {
  width: 32px; height: 32px; cursor: pointer;
  background: var(--card); color: var(--ink); border: 2px solid var(--ink); box-shadow: 2px 2px 0 var(--ink);
  font: 600 20px/1 var(--f-num);
}
.stepper button:hover { background: var(--q2-t); }
.stepper button:active { transform: translate(2px, 2px); box-shadow: none; }
.stepper button:disabled { background: var(--track); color: var(--sgl); border-color: var(--sgl); box-shadow: none; cursor: default; }
.stepper output { min-width: 20px; text-align: center; font: 600 20px/1 var(--f-num); color: var(--ink); }

.tabs { display: flex; flex-wrap: wrap; gap: 8px; }
.tabs button {
  cursor: pointer; padding: 6px 11px;
  background: var(--card); color: var(--ink); border: 2px solid var(--ink); box-shadow: 2px 2px 0 var(--ink);
  font: 500 15px/1 var(--f-num);
}
.tabs button:hover { background: var(--q2-t); }
.tabs button[aria-pressed="true"] { background: var(--ink); color: #fff; }
.tabs button:active { transform: translate(2px, 2px); box-shadow: none; }

/* ---------- 01 fork ---------- */
.ways { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; padding: 18px 18px 2px; }
.way { background: var(--card); border: 2px solid var(--line); padding: 14px 14px 12px; min-width: 0; }
.way h3 { font: 600 17px/1.2 var(--f-pix); color: var(--dim); margin-bottom: 12px; }
.way-flide { border-color: var(--ink); box-shadow: 3px 3px 0 var(--ink); }
.way-flide h3 { color: var(--ink); display: flex; align-items: center; gap: 10px; }
.way-svg { width: 100%; max-width: 440px; height: auto; shape-rendering: crispEdges; }
.way-svg text { font-family: var(--f-num); font-weight: 600; font-size: 1.05px; }
.way-stats { margin: 12px 0 0; display: grid; grid-template-columns: 1fr auto; gap: 4px 10px; font-size: 14.5px; }
.way-stats dt { color: var(--dim); }
.way-stats dd { margin: 0; text-align: right; font: 600 14.5px/1.4 var(--f-num); color: var(--ink); }
.way-stats .bad { color: var(--redo); } .way-stats .good { color: var(--q3-d); }
@media (max-width: 900px) { .ways { grid-template-columns: 1fr; } }

/* ---------- 02 speed ---------- */
.board { padding: 6px 18px 0; }
.row { padding: 16px 0; border-bottom: 2px dashed var(--line); }
.row:last-child { border-bottom: 0; }
.row-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 14px; }
.row-head h3 { font: 600 17px/1.3 var(--f-body); }
.row-head small { font-size: 14px; color: var(--dim); margin-left: 8px; font-weight: 400; }
.gain {
  font: 600 15px/1 var(--f-num); color: var(--ink);
  background: var(--q2-t); border: 2px solid var(--ink); padding: 5px 8px;
}
.bars { margin-top: 10px; display: grid; gap: 7px; }
.bars div { display: grid; grid-template-columns: 70px minmax(0, 1fr) 96px; align-items: center; gap: 10px; }
.bars span { font-size: 14px; color: var(--ink); }
.bars .is-flide span { color: var(--ink); font-weight: 600; }
.bars .num { text-align: right; font: 500 15.5px/1 var(--f-num); color: var(--ink); font-variant-numeric: tabular-nums; }
.blk { height: 16px; background: var(--track); position: relative; }
.blk i {
  position: absolute; inset: 0 auto 0 0; width: calc(var(--w) * 100%); min-width: 4px;
  background: repeating-linear-gradient(90deg, var(--c) 0 10px, transparent 10px 12px);
  transition: width .45s steps(9);
}
.blk.flide i { background: repeating-linear-gradient(90deg, var(--q1) 0 10px, transparent 10px 12px, var(--q2) 12px 22px, transparent 22px 24px, var(--q3) 24px 34px, transparent 34px 36px); }
.blk.vllm i { --c: var(--vllm); }
.blk.sgl i { --c: var(--sgl); }
@media (prefers-reduced-motion: reduce) { .blk i { transition: none; } }
@media (max-width: 520px) {
  .bars div { grid-template-columns: 56px minmax(0, 1fr) 80px; gap: 8px; }
  .bars .num { font-size: 14px; }
}

/* ---------- ranges (03, 04) ---------- */
.gauges { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 28px; }
.gauge { padding: 0 0 18px; min-width: 0; }
.gauge h3 {
  display: flex; align-items: center; gap: 10px;
  font: 600 16px/1.3 var(--f-pix); padding: 10px 14px; background: var(--st); border-bottom: 2px solid var(--ink);
}
.gauge > * + * { margin-inline: 16px; }
.gauge-unit { margin-top: 10px; font-size: 14px; color: var(--dim); }
.gauge-bits p { margin-top: 12px; font-size: 15.5px; line-height: 1.55; }
@media (max-width: 900px) { .gauges { grid-template-columns: 1fr; } }

.range { margin-top: 14px; display: grid; gap: 14px; }
.range-wide { padding: 18px 18px 0; margin-top: 0; }
.range-row { display: grid; grid-template-columns: 1fr; gap: 6px; }
.range-wide .range-row { grid-template-columns: 170px minmax(0, 1fr) 120px; align-items: center; gap: 12px; }
.range-name { font-size: 15px; color: var(--ink); }
.range-val { font: 500 15.5px/1 var(--f-num); color: var(--ink); font-variant-numeric: tabular-nums; }
.range-wide .range-val { text-align: right; }
.range-track { position: relative; height: 18px; background: repeating-linear-gradient(90deg, var(--track) 0 10px, var(--card) 10px 12px); }
.range-fill {
  position: absolute; top: 0; bottom: 0;
  left: calc(var(--a) / var(--max) * 100%);
  width: max(6px, calc((var(--b) - var(--a)) / var(--max) * 100%));
  background: repeating-linear-gradient(90deg, var(--c) 0 10px, transparent 10px 12px);
}
.f-state { background: repeating-linear-gradient(90deg, var(--q1) 0 10px, transparent 10px 12px, var(--q2) 12px 22px, transparent 22px 24px, var(--q3) 24px 34px, transparent 34px 36px); }
.f-redo { --c: var(--redo); } .f-grey { --c: var(--vllm); }
@media (max-width: 640px) {
  .range-wide .range-row { grid-template-columns: 1fr auto; }
  .range-wide .range-track { grid-column: 1 / -1; grid-row: 2; }
}

.bits { margin-top: 14px; display: grid; gap: 6px; }
.bits b { font: 500 12.5px/1 var(--f-num); color: var(--ink); }
.bits span { display: grid; grid-template-columns: repeat(32, 1fr); gap: 1px; }
.bits i { aspect-ratio: 1 / 2; background: var(--track); }
.bits i.on { background: var(--q3); }

.steps { margin: 22px 18px 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: 6px; }
.steps div { display: flex; align-items: center; gap: 8px; min-width: 0; }
.steps b { flex: none; width: 60px; font: 500 13px/1 var(--f-num); color: var(--ink); }
.steps .tr { display: flex; gap: 2px; flex-wrap: nowrap; min-width: 0; flex: 1 1 auto; }
.steps .tr i { flex: 0 1 12px; min-width: 5px; aspect-ratio: 1; }
.steps .old { background: var(--cache); }
.steps .new { background: var(--state); }
.steps .q { background: var(--q2); }

/* ---------- 05 cards ---------- */
.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.card { padding: 0 0 18px; }
.card h3 {
  display: flex; align-items: center; gap: 10px;
  font: 600 18px/1.3 var(--f-pix); padding: 10px 16px; background: var(--c); border-bottom: 2px solid var(--ink);
}
.card p { margin: 14px 18px 0; font-size: 16.5px; }
.c-state { --c: var(--state-t); } .c-q1 { --c: var(--q1-t); } .c-q2 { --c: var(--q2-t); } .c-q3 { --c: var(--q3-t); }
@media (max-width: 760px) { .cards { grid-template-columns: 1fr; } }

/* ---------- 06 serve ---------- */
.term { margin-top: 24px; background: #172033; }
.term-bar {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px; background: var(--st); border-bottom: 2px solid var(--ink);
  font: 600 15px/1 var(--f-pix); color: var(--ink);
}
.term-bar span { flex: 1; }
.term-copy {
  cursor: pointer; padding: 6px 10px; background: var(--card); color: var(--ink);
  border: 2px solid var(--ink); box-shadow: 2px 2px 0 var(--ink);
  font: 600 13px/1 var(--f-pix);
}
.term-copy:hover { background: var(--q2-t); }
.term-copy:active { transform: translate(2px, 2px); box-shadow: none; }
pre { margin: 0; padding: 14px 16px; overflow-x: auto; font: 400 14.5px/1.6 var(--f-num); color: #e7ecf6; }
pre code { font: inherit; color: inherit; }
.opt + .opt { border-top: 1px dashed #3a4664; }
.opt-head {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 12px 16px 0; font: 600 15px/1.2 var(--f-pix); color: #ffcc94;
}
.pr { color: #5fe0c4; }
.cm { color: #93a0bb; }

.split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.split .panel { min-width: 0; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; gap: 0; } }
.tbl-wrap { overflow-x: auto; margin: 14px 18px 0; }
.tbl { width: 100%; border-collapse: collapse; font-size: 15px; }
.tbl th { text-align: left; font: 600 13px/1 var(--f-body); text-transform: uppercase; letter-spacing: .06em; color: var(--dim); padding: 8px 10px 8px 0; border-bottom: 2px solid var(--ink); }
.tbl td { padding: 9px 10px 9px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.tbl td:first-child { color: var(--ink); font-weight: 600; white-space: nowrap; }
pre.mini { margin: 14px 18px 0; padding: 10px 12px; background: #172033; font-size: 14px; border: 2px solid var(--ink); }
.flags { margin: 14px 18px 0; }
.flags dt { margin-top: 12px; }
.flags dt:first-child { margin-top: 0; }
.flags dt code { color: var(--q2-d); font-weight: 600; }
.flags dd { margin: 4px 0 0; font-size: 15.5px; }

/* ---------- footer ---------- */
.foot { margin-top: 80px; background: var(--card); border-top: 2px solid var(--ink); position: relative; }
.foot::before {
  content: ""; position: absolute; left: 0; right: 0; top: -8px; height: 4px;
  background: linear-gradient(90deg, var(--state) 0 25%, var(--q1) 25% 50%, var(--q2) 50% 75%, var(--q3) 75%);
}
.foot-in { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 24px; padding-block: 26px 30px; }
.foot-in img { width: 40px; height: 33px; image-rendering: pixelated; }
.foot-in p { flex: 1 1 360px; font-size: 15px; color: var(--dim); }
.foot-in nav { display: flex; gap: 16px; }
.foot-in nav a { font: 600 15px/1 var(--f-pix); }

/* ---------- toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: calc(28px + env(safe-area-inset-bottom, 0px)); transform: translate(-50%, 20px); z-index: 80;
  padding: 10px 14px; background: var(--ink); color: #fff; font: 600 15px/1 var(--f-pix);
  box-shadow: 3px 3px 0 var(--q2);
  opacity: 0; pointer-events: none; transition: opacity .2s steps(3), transform .2s steps(3);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }