/* Bakobo — the content-page stylesheet.
   Link it next to tokens.css, which carries the palette:

     <link rel="stylesheet" href="/assets/css/tokens.css">
     <link rel="stylesheet" href="/assets/css/page.css">

   plus the Noto Sans / Noto Sans Mono <link> that index.html already uses, since
   this site does not deploy font files of its own.

   Sections 1 and 2 are vendored from bakobo/brand @ f754dd0 (css/base.css and
   css/layout.css, tiers 2 and 3), concatenated rather than @import-ed so a page
   costs two requests instead of a four-deep serial chain. Section 1 drops
   brand's @font-face block, which self-hosts from a ../fonts/ directory this
   site does not have. Section 3 is ours.

   The landing page does not use this file — it pins dark and has its own
   site.css. This is for everything else: quieter ground, ordinary headings,
   and it follows the browser's light/dark preference rather than pinning
   either one. */

/* ===========================================================================
   1. Base typography — bakobo/brand css/base.css (tier 2)
   =========================================================================== */

:root { color-scheme: light dark; }

html { font-size: 16px; }  /* ~12 pt body baseline */

body {
  margin: 0;
  background: var(--bk-bg);
  color: var(--bk-text);
  font-family: var(--bk-font-sans);
  font-weight: 400;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* a theme-scope element applies its own ground + text (otherwise the subtree
   would inherit body's already-computed color and the flip wouldn't take) */
.bk-light, .bk-dark { background: var(--bk-bg); color: var(--bk-text); }

h1, h2, h3, h4, h5, h6 { font-family: var(--bk-font-sans); line-height: 1.2; margin: 1.4em 0 0.5em; }
h1 { font-size: 2rem; font-weight: 700; color: var(--bk-accent); }
h2 { font-size: 1.5rem; font-weight: 600; color: var(--bk-muted); }
h3 { font-size: 1.2rem; font-weight: 600; color: var(--bk-text); }
h4 { font-size: 1rem; font-weight: 600; color: var(--bk-text); }

/* in dark, headings switch to the bright neutral (Mist) while body text stays
   the softer Stone, so headers read brighter than the body */
.bk-dark h1, .bk-dark h2, .bk-dark h3, .bk-dark h4 { color: var(--bk-mist); }
@media (prefers-color-scheme: dark) {
  :root:not(.bk-light) h1, :root:not(.bk-light) h2,
  :root:not(.bk-light) h3, :root:not(.bk-light) h4 { color: var(--bk-mist); }
}

p { margin: 0 0 1em; }
strong, b { color: var(--bk-strong); font-weight: 600; }

/* Clay is the underline, not the letters: as text on Paper it is 2.47:1, well
   under AA, so the link role carries the text and Clay keeps the accent. */
a {
  color: var(--bk-link);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--bk-primary) 70%, transparent);
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
}
a:visited { color: var(--bk-link-visited); }
a:hover { text-decoration-color: var(--bk-primary); text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--bk-primary); outline-offset: 3px; border-radius: 2px; }

code, pre, kbd, samp { font-family: var(--bk-font-mono); font-size: 0.9em; }
code { background: var(--bk-surface); color: var(--bk-on-surface); padding: 0.1em 0.35em; border-radius: 4px; }
pre {
  background: var(--bk-surface);
  color: var(--bk-on-surface);
  border-radius: 10px;
  padding: 1rem 1.1rem;
  overflow: auto;
  line-height: 1.45;
}
pre code { background: none; padding: 0; }

blockquote {
  margin: 1em 0;
  padding: 0.2em 0 0.2em 1em;
  border-left: 4px solid var(--bk-primary);
  color: var(--bk-muted);
}

table { border-collapse: collapse; width: 100%; }
th, td { border-bottom: 1px solid var(--bk-border); padding: 0.45em 0.7em; text-align: left; }
th { color: var(--bk-accent); font-weight: 600; }

ul, ol { padding-left: 1.3em; }
li { margin: 0.2em 0; }
li::marker { color: var(--bk-primary); }

hr { border: none; border-top: 1px solid var(--bk-border); margin: 2em 0; }

::selection { background: var(--bk-blush); color: var(--bk-ink); }

img, svg { max-width: 100%; height: auto; }

/* ===========================================================================
   2. Adaptive layout — bakobo/brand css/layout.css (tier 3)
   =========================================================================== */

:root {
  /* spacing scale */
  --bk-space-1: 0.25rem;
  --bk-space-2: 0.5rem;
  --bk-space-3: 1rem;
  --bk-space-4: 1.5rem;
  --bk-space-5: 2.5rem;
  --bk-space-6: 4rem;

  --bk-radius: 12px;
  --bk-measure: 70ch;          /* comfortable reading width */
  --bk-container: min(72rem, 92vw);
}

/* centered content column */
.bk-container {
  width: var(--bk-container);
  margin-inline: auto;
  padding-inline: var(--bk-space-3);
}

/* a readable prose column */
.bk-prose { max-width: var(--bk-measure); }

/* vertical rhythm: space between stacked children */
.bk-stack > * + * { margin-top: var(--bk-space-3); }
.bk-stack-lg > * + * { margin-top: var(--bk-space-5); }

/* responsive auto-grid */
.bk-grid {
  display: grid;
  gap: var(--bk-space-4);
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}

/* a surface card */
.bk-card {
  background: var(--bk-surface);
  color: var(--bk-on-surface);
  border-radius: var(--bk-radius);
  padding: var(--bk-space-4);
}

/* primary action — the label is Espresso, not Paper: white on Clay is 2.47:1 */
.bk-button {
  display: inline-block;
  background: var(--bk-primary);
  color: var(--bk-on-primary);
  font-weight: 600;
  text-decoration: none;
  padding: var(--bk-space-2) var(--bk-space-4);
  border-radius: 999px;
  border: none;
  cursor: pointer;
}
.bk-button:hover { filter: brightness(0.95); }

/* full-bleed section with the warm surface background */
.bk-band {
  background: var(--bk-surface);
  color: var(--bk-on-surface);
  padding-block: var(--bk-space-6);
}

/* utilities */
.bk-center { text-align: center; }
.bk-muted { color: var(--bk-muted); }

@media (min-width: 48rem) {
  :root { --bk-space-6: 6rem; }
}

/* ===========================================================================
   3. Content-page posture — bakobo.com

   The same family as the landing page, two steps quieter: the campfire glow
   drops from 18% alpha to 11%, the headline stops shouting, and Clay stops
   carrying text and becomes an accent — the hairline at the top of the page,
   the callout's edge, list markers, the focus ring.

   Link, emphasis and muted-text colors used to be corrected here; brand fixed
   them at the source in f754dd0, so this layer no longer touches them.
   =========================================================================== */

:root {
  --bk-page: min(56rem, 100% - 2.5rem);
  --bk-rule: color-mix(in srgb, var(--bk-stone) 32%, transparent);
}
.bk-dark { --bk-rule: color-mix(in srgb, var(--bk-stone) 28%, transparent); }
@media (prefers-color-scheme: dark) {
  :root:not(.bk-light) { --bk-rule: color-mix(in srgb, var(--bk-stone) 28%, transparent); }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  min-height: 100svh;
  /* a warm ground rather than a white slab */
  background-image: radial-gradient(85% 55% at 85% -8%,
    rgba(239, 139, 87, 0.11) 0%,
    rgba(222, 193, 177, 0.13) 38%,
    rgba(255, 255, 255, 0) 72%);
  background-attachment: fixed;
  /* the one line of Clay that says "same site as the landing page" */
  border-top: 3px solid var(--bk-primary);
}
.bk-dark body { background-image: none; }
@media (prefers-color-scheme: dark) {
  :root:not(.bk-light) body {
    background-image: radial-gradient(90% 60% at 80% -10%,
      rgba(239, 139, 87, 0.10) 0%,
      rgba(74, 43, 27, 0.35) 42%,
      rgba(0, 0, 0, 0) 75%);
  }
}

/* ---- page frame --------------------------------------------------------- */

.bk-page {
  display: flex;
  flex-direction: column;
  min-height: calc(100svh - 3px);
  width: var(--bk-page);
  margin-inline: auto;
  padding-block: clamp(1.25rem, 3vh, 2rem);
}

.bk-masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: clamp(0.9rem, 2vw, 1.25rem);
  border-bottom: 1px solid var(--bk-rule);
}
.bk-masthead a { display: block; line-height: 0; }
.bk-masthead img,
.bk-masthead svg { height: clamp(1.5rem, 3.6vw, 1.85rem); width: auto; }
.bk-masthead__label {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bk-muted);
  white-space: nowrap;
}

.bk-main { flex: 1 1 auto; padding-block: clamp(1.5rem, 4vw, 2.75rem); }

/* ---- content type ------------------------------------------------------- */

.bk-main > * { max-width: var(--bk-measure); }
.bk-main h1 {
  margin-top: 0;
  font-size: clamp(1.8rem, 4vw, 2.35rem);
  letter-spacing: -0.015em;
  text-wrap: balance;
}
.bk-main h2 {
  font-size: clamp(1.15rem, 2.2vw, 1.35rem);
  margin-top: 2.2em;
}
.bk-lede { font-size: 1.08rem; }

/* long identifiers must wrap rather than widen the page */
code { overflow-wrap: anywhere; }

/* code inside a heading is already set apart by the mono face; the chip
   background just makes the heading look patched */
h1 code, h2 code, h3 code { background: none; padding: 0; color: inherit; font-size: 0.92em; }

/* ---- a called-out caveat ------------------------------------------------ */

.bk-note {
  background: var(--bk-surface);
  color: var(--bk-on-surface);
  border-left: 3px solid var(--bk-primary);
  border-radius: 0 var(--bk-radius) var(--bk-radius) 0;
  padding: clamp(1rem, 2.5vw, 1.35rem) clamp(1.1rem, 3vw, 1.5rem);
  margin-block: clamp(1.75rem, 4vw, 2.5rem);
}
.bk-note > h2 { margin-top: 0; }
.bk-note > p:last-child { margin-bottom: 0; }

/* ---- a list of machine-readable things ---------------------------------- */

.bk-entries {
  list-style: none;
  padding-left: 0;
  margin: 1.25rem 0 0;
  display: grid;
  gap: 0.7rem;
}
.bk-entries > li {
  margin: 0;
  border: 1px solid var(--bk-rule);
  border-radius: var(--bk-radius);
  padding: 0.85rem 1.05rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 1rem;
}
.bk-entries__name { font-weight: 600; color: var(--bk-text); }
.bk-entries__name code { background: none; padding: 0; color: var(--bk-accent); font-weight: 600; }
.bk-entries__id {
  flex: 1 1 22rem;
  font-family: var(--bk-font-mono);
  font-size: 0.82rem;
  color: var(--bk-muted);
  overflow-wrap: anywhere;
}
.bk-entries__link { font-size: 0.85rem; }

/* ---- a page that is mostly one message ---------------------------------- */

.bk-notice { padding-block: clamp(2rem, 8vh, 5rem); }
.bk-notice__code {
  font-family: var(--bk-font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  color: var(--bk-primary);
  margin: 0 0 0.75rem;
}

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

.bk-footer {
  margin-top: auto;
  padding-top: clamp(1.1rem, 3vw, 1.6rem);
  border-top: 1px solid var(--bk-rule);
  color: var(--bk-muted);
  font-size: 0.88rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.4rem 1.5rem;
}
.bk-footer p { margin: 0; }

/* ---- print -------------------------------------------------------------- */

@media print {
  body { background: #fff; background-image: none; border-top: none; color: #000; }
  .bk-page { width: auto; min-height: 0; }
  .bk-note, .bk-entries > li { border: 1px solid #bbb; background: none; }
  a { color: #000; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 0.85em; color: #555; }
}