/* =========================================================================
   Personal site styles. The aim is a plain, single-column personal site,
   not a docs site: overrides/main.html swaps out the theme's header,
   sidebars and footer, and this file restyles what's left.
   ========================================================================= */

/* ---- Tokens ------------------------------------------------------------ */

/* Fonts: system fonts until a Google Fonts family is set in zensical.toml
   (theme.font.text / theme.font.code), which sets --md-text-font and
   --md-code-font and so flows through here automatically. */
:root {
  --site-font: var(--md-text-font, system-ui), system-ui, -apple-system,
    "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --site-font-mono: var(--md-code-font, ui-monospace), ui-monospace,
    SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --site-width: 44rem;
}

/* Light */
[data-md-color-scheme="default"] {
  --site-bg: #fcfcfb;
  --site-text: #1c1e22;
  --site-muted: #5e6570;
  --site-border: #e2e4e8;
  --site-link: #0e6a8a;
  --site-link-hover: #084d65;
  --site-code-bg: #f1f2f4;
}

/* Dark */
[data-md-color-scheme="slate"] {
  --site-bg: #14171c;
  --site-text: #e4e6ea;
  --site-muted: #99a1ab;
  --site-border: #2a2f37;
  --site-link: #6ec6e6;
  --site-link-hover: #a5dcf0;
  --site-code-bg: #1d2128;
}

/* Hand the tokens to the theme, so its own components (code blocks,
   admonitions, selection, focus) match. */
[data-md-color-scheme="default"],
[data-md-color-scheme="slate"] {
  --md-default-bg-color: var(--site-bg);
  --md-default-fg-color: var(--site-text);
  --md-default-fg-color--light: var(--site-muted);
  --md-default-fg-color--lighter: var(--site-border);
  --md-default-fg-color--lightest: var(--site-border);
  --md-primary-fg-color: var(--site-link);
  --md-primary-fg-color--light: var(--site-link);
  --md-primary-fg-color--dark: var(--site-link-hover);
  --md-primary-bg-color: var(--site-bg);
  --md-accent-fg-color: var(--site-link-hover);
  --md-typeset-color: var(--site-text);
  --md-typeset-a-color: var(--site-link);
  --md-code-bg-color: var(--site-code-bg);
  --md-footer-bg-color: var(--site-bg);
  --md-footer-fg-color: var(--site-muted);
}

body {
  background-color: var(--site-bg);
  font-family: var(--site-font);
}

code,
kbd,
pre {
  font-family: var(--site-font-mono);
}

/* ---- Layout: one centred column ---------------------------------------- */

.site-header__inner,
.site-footer__inner,
.md-main__inner.md-grid {
  max-width: var(--site-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

.md-main__inner {
  margin-top: 2rem;
}

.md-content {
  max-width: none;
}

.md-content__inner {
  margin: 0;
  padding-top: 0;
}

/* The theme reserves room above content for edit/view buttons; there are
   none here. */
.md-content__inner::before {
  display: none;
}

/* ---- Header ------------------------------------------------------------ */

.site-header {
  border-bottom: 1px solid var(--site-border);
}

.site-header__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  padding-top: 1.6rem;
  padding-bottom: 1.2rem;
}

.site-header__name {
  color: var(--site-text);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.site-header__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.2rem 1.2rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.75rem;
}

.site-header__links a {
  color: var(--site-muted);
  text-decoration: none;
  text-underline-offset: 0.3em;
}

.site-header__links a:hover,
.site-header__links a:focus-visible {
  color: var(--site-text);
}

.site-header__links a[aria-current="page"] {
  color: var(--site-text);
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

/* Theme toggle: the theme's palette form, minus its header-bar styling */
.site-header__palette .md-header__option {
  display: flex;
  max-width: none;
  opacity: 1;
}

.site-header__palette .md-header__button {
  margin: 0;
  padding: 0;
  color: var(--site-muted);
  cursor: pointer;
}

.site-header__palette .md-header__button:hover {
  color: var(--site-text);
  opacity: 1;
}

.site-header__palette .md-header__button svg {
  width: 1rem;
  height: 1rem;
}

/* ---- Footer ------------------------------------------------------------ */

.site-footer {
  margin-top: 4rem;
  border-top: 1px solid var(--site-border);
}

.site-footer__inner {
  padding-top: 1.2rem;
  padding-bottom: 2rem;
  color: var(--site-muted);
  font-size: 0.65rem;
  line-height: 1.8;
}

.site-footer__inner p {
  margin: 0;
}

.site-footer a {
  color: var(--site-muted);
  text-decoration: underline;
  text-decoration-color: var(--site-border);
  text-underline-offset: 0.25em;
}

.site-footer a:hover {
  color: var(--site-text);
}

/* ---- Typography -------------------------------------------------------- */

.md-typeset {
  font-size: 0.85rem;
  line-height: 1.7;
}

.md-typeset h1 {
  margin-bottom: 1rem;
  color: var(--site-text);
  font-size: 1.8em;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.md-typeset h2 {
  margin-top: 2.4em;
  font-size: 1.25em;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.md-typeset h3 {
  font-size: 1.05em;
  font-weight: 650;
}

.md-typeset a {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-decoration-color: color-mix(in srgb, var(--site-link) 40%, transparent);
  text-underline-offset: 0.2em;
}

.md-typeset a:hover {
  color: var(--site-link-hover);
  text-decoration-color: currentColor;
}

/* Heading permalinks: show on hover only, and not on the page title */
.md-typeset h1 .headerlink {
  display: none;
}

.md-typeset .headerlink {
  color: var(--site-muted);
  text-decoration: none;
}

/* ---- Home page intro --------------------------------------------------- */

.md-typeset .intro {
  font-size: 1.05em;
}

.md-typeset .links-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.2rem;
  margin-top: 1.2em;
}

.md-typeset .links-row a {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  color: var(--site-muted);
  text-decoration: none;
}

.md-typeset .links-row a:hover {
  color: var(--site-text);
}

/* ---- Post lists (blog index, archive, home) ---------------------------- */

.post-row {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 1rem;
  align-items: baseline;
  padding: 0.7rem 0;
  border-bottom: 1px dotted var(--site-border);
  font-size: 0.85rem;
}

.post-row time {
  color: var(--site-muted);
  font-family: var(--site-font-mono);
  font-size: 0.8em;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.post-row a {
  color: var(--site-text);
  text-decoration: none;
}

.post-row a:hover {
  color: var(--site-link);
}

/* The blog index wraps rows in the theme's content block */
.md-content__inner > .post-row {
  margin: 0;
}

.md-typeset .more-link {
  margin-top: 1rem;
  font-size: 0.9em;
}

@media screen and (max-width: 30em) {
  .post-row {
    grid-template-columns: 1fr;
    gap: 0.1rem;
  }
}

/* ---- Blog post page ---------------------------------------------------- */

.md-typeset .post-meta {
  margin: 0 0 0.6rem;
  color: var(--site-muted);
  font-size: 0.8em;
}

.md-typeset .post-meta a {
  color: var(--site-muted);
}

/* ---- Collapsible rows (Work page) ------------------------------------- */

/* `??? note "Title"` blocks, restyled from coloured admonitions into plain
   bordered rows. [class] lifts each selector above the theme's per-type
   rules (.md-typeset .note > summary), which would otherwise win. Like
   docsgoblin.com's work page. */
.md-typeset details[class] {
  margin: 0.7rem 0;
  padding: 0;
  border: 1px solid var(--site-border);
  border-radius: 0.3rem;
  background: transparent;
  box-shadow: none;
  font-size: inherit;
}

.md-typeset details[class]:focus-within,
.md-typeset details[class][open] {
  border-color: color-mix(in srgb, var(--site-link) 50%, var(--site-border));
}

.md-typeset details[class] > summary {
  margin: 0;
  padding: 0.7rem 2.4rem 0.7rem 1rem;
  border: 0;
  border-radius: 0.3rem;
  background: transparent;
  color: var(--site-link);
  font-weight: 500;
}

.md-typeset details[class] > summary::before {
  display: none;
}

.md-typeset details[class] > summary::after {
  top: 0.85rem;
  right: 0.8rem;
  background-color: var(--site-muted);
}

.md-typeset details > :not(summary) {
  margin-left: 1rem;
  margin-right: 1rem;
}

.md-typeset details > :last-child {
  margin-bottom: 1rem;
}

/* ---- Misc -------------------------------------------------------------- */

.md-typeset hr {
  border-bottom-color: var(--site-border);
}

.md-typeset code {
  border-radius: 0.2rem;
}