/* The site's tokens and type, on one narrow column: Fusion's figures, then the steps. */
@font-face {
  font-family: 'Bricolage Grotesque Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 200 800;
  src: url(fonts/bricolage-grotesque-latin-wght-normal.woff2) format('woff2-variations');
  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: 'Public Sans Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url(fonts/public-sans-latin-wght-normal.woff2) format('woff2-variations');
  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: 'IBM Plex Mono';
  font-style: normal;
  font-display: swap;
  font-weight: 400;
  src: url(fonts/ibm-plex-mono-latin-400-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: 'IBM Plex Mono';
  font-style: normal;
  font-display: swap;
  font-weight: 500;
  src: url(fonts/ibm-plex-mono-latin-500-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;
}

:root {
  --paper: #f3f4f0;
  --paper-2: #e8eae3;
  --card: #fbfbf8;
  --ink: #18201d;
  --ink-2: #4a544f;
  --line: #c9cec4;
  --cobalt: #1f4fa3;
  --cobalt-ink: #ffffff;
  --ochre: #8a5a00;
  --ochre-bg: #f6ead0;
  --ok: #2c6b3f;
  --ok-bg: #e2efe5;
  --bad: #9b2c1f;
  --bad-bg: #f7e3df;

  --f-display: 'Bricolage Grotesque Variable', 'Avenir Next', 'Segoe UI', sans-serif;
  --f-body: 'Public Sans Variable', 'Helvetica Neue', Arial, sans-serif;
  --f-mono: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  --step--1: 0.84rem;
  --step-1: 1.25rem;
  --step-2: 1.6rem;
  --step-3: clamp(2rem, 6vw, 2.8rem);
  --gutter: max(16px, env(safe-area-inset-left, 0px));
  --gutter-r: max(16px, env(safe-area-inset-right, 0px));
  --radius: 4px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --paper: #111614; --paper-2: #1a201d; --card: #151b18; --ink: #e7ebe5; --ink-2: #a5aea8; --line: #2f3833;
    --cobalt: #8cb0f2; --cobalt-ink: #0d1424; --ochre: #e9b85c; --ochre-bg: #2a2212; --ok: #7cc493; --ok-bg: #16261b;
    --bad: #f0a093; --bad-bg: #2d1713;
    color-scheme: dark;
  }
}
:root[data-theme='dark'] {
  --paper: #111614; --paper-2: #1a201d; --card: #151b18; --ink: #e7ebe5; --ink-2: #a5aea8; --line: #2f3833;
  --cobalt: #8cb0f2; --cobalt-ink: #0d1424; --ochre: #e9b85c; --ochre-bg: #2a2212; --ok: #7cc493; --ok-bg: #16261b;
  --bad: #f0a093; --bad-bg: #2d1713;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 1rem/1.6 var(--f-body); }
a { color: var(--cobalt); text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--cobalt); outline-offset: 2px; }
h1, h2, h3 { font-family: var(--f-display); line-height: 1.12; letter-spacing: -0.01em; text-wrap: balance; margin: 0; }
h1 { font-size: var(--step-3); font-weight: 650; }
h2 { font-size: var(--step-2); font-weight: 600; }
h3 { font-size: var(--step-1); font-weight: 600; }
p { margin: 0; }
.wrap { max-width: 46rem; margin-inline: auto; padding-left: var(--gutter); padding-right: var(--gutter-r); }
.mono { font-family: var(--f-mono); font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.small { font-size: var(--step--1); color: var(--ink-2); }
.muted { color: var(--ink-2); }

.demo { background: #8a5a00; color: #fff; font-size: var(--step--1); position: sticky; top: 0; z-index: 30; }
.demo p { padding-block: 0.45rem; }
.site-header { border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: 0.9rem; }
.brand { display: inline-flex; align-items: center; gap: 0.45rem; font: 650 1.25rem var(--f-display); color: var(--ink); text-decoration: none; }
.langs { display: flex; gap: 0.6rem; font: 500 var(--step--1) var(--f-mono); }
.langs a { color: var(--ink-2); }
.langs a[aria-current] { color: var(--ink); text-decoration: none; }

main { display: grid; gap: 1.5rem; padding-block: clamp(2rem, 6vw, 3.5rem) 3rem; }
.hero { display: grid; gap: 0.9rem; }
.eyebrow { font: 500 var(--step--1) var(--f-mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--cobalt); }
.lede { font-size: var(--step-1); color: var(--ink-2); line-height: 1.5; max-width: 62ch; }
#app { display: grid; gap: 1.5rem; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem 1.15rem; display: grid; gap: 0.75rem; min-width: 0; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; flex-wrap: wrap; }
.block { border-color: var(--ochre); background: var(--ochre-bg); }
.block h2 { font-size: var(--step-1); }

.chip { font: 500 0.72rem var(--f-mono); text-transform: uppercase; letter-spacing: 0.06em; padding: 0.2em 0.55em; border-radius: 3px; border: 1px solid var(--line); color: var(--ink-2); white-space: nowrap; }
.chip-open, .chip-done { border-color: var(--ok); color: var(--ok); }
.chip-closed { border-color: var(--ochre); color: var(--ochre); }
.chip-todo { border-color: var(--cobalt); color: var(--cobalt); }

.committed { display: flex; flex-wrap: wrap; gap: 0.25rem 0.6rem; align-items: baseline; }
.label { font-weight: 600; }
.progress { height: 8px; background: var(--paper-2); border: 1px solid var(--line); border-radius: 2px; overflow: hidden; }
.progress span { display: block; height: 100%; background: var(--cobalt); }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(9.5rem, 1fr)); gap: 0.75rem 1rem; margin: 0; }
.facts dt { font-size: var(--step--1); color: var(--ink-2); }
.facts dd { margin: 0.1rem 0 0; font-weight: 600; font-variant-numeric: tabular-nums; }
.links { font-size: var(--step--1); }

.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.9rem; }
.step-head { display: flex; align-items: baseline; gap: 0.4rem 0.75rem; flex-wrap: wrap; }
.step-head h3 { flex: 1 1 14rem; }
.step-n { font: 500 var(--step--1) var(--f-mono); color: var(--ink-2); text-transform: uppercase; letter-spacing: 0.06em; }
.step.is-locked { background: transparent; }
.step.is-locked h3 { color: var(--ink-2); }

.actions { display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5em;
  font: 600 1rem/1.2 var(--f-body); padding: 0.75em 1.1em; min-height: 44px;
  border-radius: var(--radius); border: 1.5px solid var(--cobalt); background: var(--cobalt); color: var(--cobalt-ink);
  text-decoration: none; cursor: pointer; max-width: 100%;
}
.btn:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; color: var(--cobalt); }
.btn[disabled] { opacity: 0.55; cursor: not-allowed; filter: none; }
.btn img { width: 20px; height: 20px; border-radius: 4px; }
.btn.square { min-width: 44px; padding-inline: 0.6em; font-family: var(--f-mono); }

.amount { display: flex; gap: 0.5rem; align-items: stretch; max-width: 22rem; }
.amount input {
  flex: 1 1 auto; min-width: 0; font-size: 1.15rem; padding: 0.5em 0.7em; min-height: 44px;
  border: 1.5px solid var(--line); border-radius: var(--radius); background: var(--paper); color: var(--ink); text-align: right;
}
.amount input:focus-visible { border-color: var(--cobalt); }
.amount input[aria-invalid='true'] { border-color: var(--ochre); }

.note { font-size: var(--step--1); padding: 0.55rem 0.75rem; border-left: 3px solid var(--line); background: var(--paper-2); }
.note.warn { border-left-color: var(--ochre); background: var(--ochre-bg); }
.note.ok { border-left-color: var(--ok); background: var(--ok-bg); }

.msg { display: grid; gap: 0.35rem; font-size: 0.95rem; padding: 0.65rem 0.8rem; border-radius: var(--radius); border: 1px solid var(--line); background: var(--paper-2); }
.msg-ok { border-color: var(--ok); background: var(--ok-bg); }
.msg-error { border-color: var(--bad); background: var(--bad-bg); }
.msg-progress { border-style: dashed; }
.msg details summary { cursor: pointer; font-size: var(--step--1); color: var(--ink-2); }
.msg details p { margin-top: 0.35rem; }

.commitments { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.6rem; }
.commitments li { display: grid; gap: 0.35rem; justify-items: start; padding: 0.7rem 0.8rem; border: 1px solid var(--line); border-radius: var(--radius); }

.about { display: grid; gap: 0.6rem; padding-top: 1.25rem; border-top: 1px solid var(--line); }
.about h2 { font-size: var(--step-1); }
.about ul { margin: 0; padding-left: 1.2em; display: grid; gap: 0.35rem; color: var(--ink-2); max-width: 68ch; }

.site-footer { border-top: 1px solid var(--line); padding-block: 1.5rem 2.5rem; }
.stack { display: grid; gap: 0.9rem; }
.footer-links { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.4rem 1.1rem; font-size: var(--step--1); }
.footer-links a { color: var(--ink); }