/* Design tokens. The accent is sampled from the corten steel in the portrait, so
   the photo and the page share one colour world. */
:root {
  --paper: #f4f1ea;
  --paper-raised: #efebe2;
  --ink: #16130f;
  --ink-soft: #3d3730;
  --muted: #7b7166;
  --line: #ded7ca;
  --rust: #7a3b2b;
  --rust-deep: #5b2a1e;
  --rust-tint: #e9dbd2;

  --measure: 62ch;
  --page: 1240px;
  --gutter: clamp(1.25rem, 4vw, 3.5rem);

  --step-label: 0.6875rem;
  --step-small: 0.8125rem;
  --step-body: 1.0625rem;
  --step-lead: clamp(1.125rem, 1.6vw, 1.375rem);
  --step-h2: clamp(1.75rem, 3.4vw, 2.75rem);
  --step-h1: clamp(2.75rem, 7vw, 5rem);
  --step-metric: clamp(2rem, 4.5vw, 3.25rem);

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  color-scheme: light;
}

/* Dark mode: a near-black that leans blue, so the rust accent (its colour
   opposite) carries all the warmth. The accent is lightened, because the
   light-mode rust is too dark to read on a dark ground.

   Applied only when data-theme="dark" is set. The system setting is deliberately
   ignored: the default theme is chosen in Base.astro, not by the visitor's OS. */
:root[data-theme="dark"] {
  --paper: #121419;
  --paper-raised: #191c23;
  --ink: #eceae6;
  --ink-soft: #c6c1b9;
  --muted: #8d8881;
  --line: #2a2e37;
  --rust: #cd8264;
  --rust-deep: #8d4c35;
  --rust-tint: #2b2019;
  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-family: "Inter Variable", system-ui, sans-serif;
  font-size: var(--step-body);
  line-height: 1.6;
  font-synthesis-weight: none;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3 {
  font-family: "Instrument Serif", Georgia, serif;
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -0.015em;
  margin: 0;
}

p {
  margin: 0;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

::selection {
  background: var(--rust);
  color: var(--paper);
}

:focus-visible {
  outline: 2px solid var(--rust);
  outline-offset: 3px;
  border-radius: 2px;
}

/* --- shared pieces ------------------------------------------------------- */

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

/* Small mono labels, the quiet metadata layer the reference sites all use. */
.label {
  font-family: "JetBrains Mono Variable", ui-monospace, monospace;
  font-size: var(--step-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: var(--step-small);
  text-decoration: none;
  white-space: nowrap;
  transition:
    background 0.25s var(--ease),
    color 0.25s var(--ease),
    border-color 0.25s var(--ease);
}

.pill--solid {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.pill--solid:hover {
  background: var(--rust);
  border-color: var(--rust);
}

.pill--ghost:hover {
  border-color: var(--ink);
  background: var(--paper-raised);
}

.tag {
  font-family: "JetBrains Mono Variable", ui-monospace, monospace;
  font-size: var(--step-label);
  letter-spacing: 0.06em;
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
  background: var(--paper-raised);
  color: var(--ink-soft);
  border: 1px solid var(--line);
}