/* Tokens mirror DESIGN.md. scripts/check-design.mjs fails the build if they drift. */
:root {
  --color-primary: #0B0B0C;
  --color-secondary: #5B5B57;
  --color-tertiary: #FF6400;
  --color-neutral: #F7F6F2;
  --color-surface: #FFFFFF;
  --color-line: #DDDAD2;
  --color-on-tertiary: #0B0B0C;
  --color-on-primary: #F7F6F2;
  --color-tertiary-container: #FF8A3D;
  --color-night: #0C0C0D;
  --color-night-surface: #161617;
  --color-night-text: #F5F5F2;
  --font-display: "Yellowtail", "Segoe Script", cursive;
  --font-ui: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-code: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --rounded-sm: 6px;
  --rounded-md: 12px;
  --rounded-lg: 22px;
  --rounded-full: 999px;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 32px;
  --space-xl: 64px;
  --space-gutter: 24px;

  --page: var(--color-neutral);
  --ink: var(--color-primary);
  --muted: var(--color-secondary);
  --card: var(--color-surface);
  --hairline: var(--color-line);
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: var(--color-night);
    --ink: var(--color-night-text);
    --muted: #B3B3AD;
    --card: var(--color-night-surface);
    --hairline: #2A2A2C;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 1.0625rem;
  line-height: 1.6;
}
a { color: inherit; text-decoration-color: var(--color-tertiary); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--color-tertiary); outline-offset: 3px; border-radius: var(--rounded-sm); }

.skip { position: absolute; left: var(--space-md); top: -100px; background: var(--card); padding: var(--space-sm) var(--space-md); border-radius: var(--rounded-full); z-index: 10; }
.skip:focus { top: var(--space-md); }

.wrap { width: min(1080px, 100% - 2 * var(--space-gutter)); margin-inline: auto; }
.narrow { width: min(720px, 100% - 2 * var(--space-gutter)); margin-inline: auto; }

header.site { display: flex; align-items: center; justify-content: space-between; gap: var(--space-md); padding-block: var(--space-md); flex-wrap: wrap; }
header.site img { height: 44px; width: auto; display: block; }
nav.site { display: flex; align-items: center; gap: var(--space-md); flex-wrap: wrap; }
nav.site a.link { text-decoration: none; font-weight: 500; color: var(--muted); }
nav.site a.link[aria-current="page"], nav.site a.link:hover { color: var(--ink); }

.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 14px 22px; border-radius: var(--rounded-full); font: 600 0.75rem/1 var(--font-ui); letter-spacing: 0.08em; text-transform: uppercase; text-decoration: none; border: 1px solid transparent; }
.btn-primary { background: var(--color-tertiary); color: var(--color-on-tertiary); }
.btn-primary:hover { background: var(--color-tertiary-container); }
.btn-secondary { background: var(--card); color: var(--ink); border-color: var(--hairline); }
.btn-secondary:hover { border-color: var(--ink); }

.hero { padding-block: var(--space-xl) var(--space-lg); }
.hero .mark { width: min(420px, 80%); height: auto; display: block; margin-bottom: var(--space-lg); }
h1 { font-size: clamp(2.2rem, 6vw, 3rem); line-height: 1.1; letter-spacing: -0.02em; font-weight: 600; margin: 0 0 var(--space-md); max-width: 18ch; }
h2 { font-size: 1.75rem; line-height: 1.2; font-weight: 600; margin: 0 0 var(--space-md); }
h3 { font-size: 1.125rem; margin: 0 0 var(--space-sm); }
.lede { font-size: 1.25rem; color: var(--muted); max-width: 48ch; margin: 0 0 var(--space-lg); }
.actions { display: flex; gap: var(--space-sm); flex-wrap: wrap; }
.label { font: 600 0.75rem/1 var(--font-ui); letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin: 0 0 var(--space-sm); }

section.block { padding-block: var(--space-xl); border-top: 1px solid var(--hairline); }
.grid { display: grid; gap: var(--space-md); grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card { background: var(--card); border: 1px solid var(--hairline); border-radius: var(--rounded-lg); padding: 24px; }
.card p { margin: 0; color: var(--muted); }

ol.steps { list-style: none; counter-reset: step; padding: 0; margin: 0; display: grid; gap: var(--space-md); grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
ol.steps li { counter-increment: step; background: var(--card); border: 1px solid var(--hairline); border-radius: var(--rounded-lg); padding: 24px; }
ol.steps li::before { content: counter(step); display: block; font-family: var(--font-display); font-size: 2.5rem; line-height: 1; margin-bottom: var(--space-sm); }
ol.steps strong { display: block; margin-bottom: var(--space-xs); }
ol.steps span { color: var(--muted); }

.sign-off { font-family: var(--font-display); font-size: clamp(2.2rem, 7vw, 3.5rem); line-height: 1.1; margin: 0; }

pre { background: var(--color-night-surface); color: var(--color-night-text); border-radius: var(--rounded-md); padding: var(--space-md); overflow-x: auto; font: 400 0.875rem/1.55 var(--font-code); margin: var(--space-md) 0; border: 1px solid var(--hairline); }
code { font-family: var(--font-code); font-size: 0.9em; }
p code, li code { background: var(--card); border: 1px solid var(--hairline); border-radius: var(--rounded-sm); padding: 1px 6px; }
table { width: 100%; border-collapse: collapse; margin: var(--space-md) 0; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--hairline); vertical-align: top; }
th { font: 600 0.75rem/1 var(--font-ui); letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }

footer.site { padding-block: var(--space-lg) var(--space-xl); border-top: 1px solid var(--hairline); color: var(--muted); font-size: 0.9375rem; display: flex; justify-content: space-between; gap: var(--space-md); flex-wrap: wrap; }
footer.site a { color: inherit; }

/* Try it */
form.try label { display: block; font: 600 0.75rem/1 var(--font-ui); letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-bottom: var(--space-sm); }
form.try .row { display: flex; gap: var(--space-sm); flex-wrap: wrap; }
form.try input[type="email"] { flex: 1 1 260px; min-height: 48px; padding: 0 var(--space-md); border-radius: var(--rounded-full); border: 1px solid var(--hairline); background: var(--card); color: var(--ink); font: inherit; }
form.try input[type="email"]:focus-visible { border-color: var(--ink); }
form.try .hp { position: absolute; left: -10000px; width: 1px; height: 1px; opacity: 0; }
form.try button[disabled] { opacity: 0.6; cursor: progress; }
.fine { font-size: 0.9375rem; color: var(--muted); margin: var(--space-sm) 0 0; }
.error { margin: var(--space-md) 0 0; padding: 12px 16px; border: 1px solid var(--ink); border-radius: var(--rounded-md); background: var(--card); }
.status { margin-top: var(--space-lg); }
ol.track { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
ol.track li { display: grid; grid-template-columns: 28px 1fr auto; column-gap: var(--space-md); align-items: start; padding: 14px 0; border-bottom: 1px solid var(--hairline); color: var(--muted); }
ol.track li::before { content: ""; width: 20px; height: 20px; margin-top: 2px; border-radius: var(--rounded-full); border: 2px solid var(--hairline); grid-row: 1 / span 2; }
ol.track .name { font-weight: 600; }
ol.track .hint { grid-column: 2; font-size: 0.9375rem; }
ol.track .when { grid-column: 3; grid-row: 1; font: 400 0.8125rem/1.6 var(--font-code); }
ol.track li.done { color: var(--ink); }
ol.track li.done::before { background: var(--ink); border-color: var(--ink); box-shadow: inset 0 0 0 4px var(--page); }
ol.track li.done .hint { display: none; }
ol.track li.next { color: var(--ink); }
ol.track li.next::before { border-color: var(--ink); }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; scroll-behavior: auto !important; } }