/* base.css — re-skins the hugo-coder theme onto the redesign tokens + fonts.
   Loads after tokens.css/fonts.css. px values are ported as-is from the mockup
   spec (site html is 62.5%, so px here render at their literal size).
   Two documented !important uses live in the code-block section (inline chroma
   styles can only be overridden with !important); see notes there. */

/* ---- Body / base ---- */
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.25s ease, color 0.25s ease;
}

a {
  color: var(--accent-strong);
  font-weight: inherit;
}
a:hover,
a:focus {
  color: var(--accent-strong);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---- Headings ---- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.01em;
}
h1 {
  letter-spacing: -0.02em;
}

/* ---- Rule / misc ---- */
hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 2.4rem 0;
}

/* ---- Tables ---- */
table {
  border-collapse: collapse;
}
table th,
table td {
  border: 1px solid var(--border);
  padding: 10px 14px;
}
table thead th,
table tr:first-child th {
  background: var(--surface-2);
  color: var(--fg);
  text-align: left;
  border-top: 1px solid var(--border);
}
table tr td:first-child,
table tr th:first-child {
  border-left: 1px solid var(--border);
}
table tr td:last-child,
table tr th:last-child {
  border-right: 1px solid var(--border);
}

/* ---- Blockquote ---- */
blockquote {
  margin: 0 0 22px;
  padding: 14px 20px;
  border-left: 3px solid var(--accent);
  background: var(--surface-2);
  border-radius: 0 10px 10px 0;
  color: var(--muted);
  font-style: normal;
  font-weight: 400;
}
blockquote p {
  margin: 0;
}

/* ---- Post body prose (absorbed from legacy blog-posts.css, retokenized) ----
   The theme renders posts as `section.post > article > div > {.Content}`. The old
   blog-posts.css styled these with hardcoded #1565c0 links, checkmark "card" lists
   and white gradients that were dark-illegible; the redesign uses the token-driven
   element styles above (links via `a`, blockquotes/tables below) plus this minimal,
   scheme-neutral prose spacing that matches the approved post mockup (plain bullets,
   20px paragraph rhythm). Reading measure + type scale ported from the mockup's
   .article/.article-body spec: 720px column, 17px/1.75 body, clamped title, 24px h2. */
.post article {
  max-width: 720px;
  margin: 0 auto;
}
.post h1.title {
  font-size: clamp(30px, 4.5vw, 40px);
  line-height: 1.15;
}
.post article > div {
  font-size: 17px;
  line-height: 1.75;
}
.post article > div h2 {
  font-size: 24px;
  margin: 40px 0 14px;
}
.post p {
  margin: 0 0 20px;
}
.post ul,
.post ol {
  margin: 0 0 20px;
  padding-left: 24px;
}
.post li {
  margin-bottom: 8px;
}

/* ---- Layout width ---- */
.container {
  max-width: 112rem; /* 1120px at 62.5% root — matches mockup .container */
  padding-left: 2.4rem;
  padding-right: 2.4rem;
}

/* ---- Navigation (theme classes restyled to the mockup .site-nav look) ---- */
.navigation {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 64px;
  background: color-mix(in srgb, var(--bg) 84%, transparent);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.navigation .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}
.navigation a,
.navigation span {
  font-family: var(--font-sans);
  font-weight: 500;
  line-height: 1.2;
  color: var(--muted);
}
/* Mono logotype */
.navigation .navigation-title {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
  text-transform: none;
  color: var(--fg);
  white-space: nowrap;
}
.navigation .navigation-list {
  display: flex;
  align-items: center;
  gap: 2px;
  float: none;
}
.navigation .navigation-item {
  float: none;
  margin: 0;
}
.navigation .navigation-link {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--muted);
  white-space: nowrap;
  line-height: 1.2;
  transition: color 0.15s, background 0.15s;
}
.navigation .navigation-link:hover,
.navigation .navigation-link:focus {
  color: var(--fg);
  background: var(--surface-2);
  text-decoration: none;
}
.navigation .navigation-title:hover,
.navigation .navigation-title:focus {
  color: var(--accent-strong);
  text-decoration: none;
}
.navigation .logo-tilde {
  color: var(--accent);
}
.navigation .menu-button {
  color: var(--muted);
}

/* Theme toggle button (mockup .theme-toggle) */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-left: 6px;
  flex: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  padding: 0;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.theme-toggle:hover {
  color: var(--fg);
  border-color: var(--border-strong);
  background: var(--surface-2);
}
.theme-toggle svg {
  width: 16px;
  height: 16px;
}
/* Icon visibility: moon in light, sun in dark; system fallback when unset */
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: inline-flex; }
html[data-theme='dark'] .theme-toggle .icon-sun { display: inline-flex; }
html[data-theme='dark'] .theme-toggle .icon-moon { display: none; }
@media (prefers-color-scheme: dark) {
  html:not([data-theme]) .theme-toggle .icon-sun { display: inline-flex; }
  html:not([data-theme]) .theme-toggle .icon-moon { display: none; }
}

/* Mobile: keep the theme's checkbox-hamburger dropdown mechanism; just stack */
@media only screen and (max-width: 768px) {
  .navigation .container {
    height: auto;
    min-height: 56px;
    flex-wrap: wrap;
  }
  .navigation .navigation-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .navigation .navigation-item {
    text-align: center;
  }
  .theme-toggle {
    margin: 8px auto;
  }
}

/* ---- Footer ---- */
.footer {
  border-top: 1px solid var(--border);
  margin-top: 56px;
  padding: 34px 0;
  text-align: center;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.8;
}
.footer a {
  color: var(--muted);
}
.footer a:hover,
.footer a:focus {
  color: var(--accent-strong);
}

/* ---- List rows (projects / latest / ai-lab share the theme .list markup) ---- */
/* The theme hardcodes these to #212121 / link-blue, which is low-contrast when
   toggled to dark. Tokenize so every list page stays legible in both schemes. */
/* Generic taxonomy/tag term-list rows: keep date + title on one line
   (absorbed from legacy blog-posts.css; /latest/ overrides this via .list.latest
   in components.css to allow wrapping with a section badge). */
.list ul li {
  display: flex;
  align-items: baseline;
  gap: 0.25rem 0.5rem;
  white-space: nowrap;
}
.list ul li .title {
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
  color: var(--fg);
}
.list ul li .title:hover,
.list ul li .title:focus {
  color: var(--accent-strong);
}
.list ul li .date {
  flex-shrink: 0;
  color: var(--faint);
}
.list ul li .ai-tool {
  color: var(--accent-strong);
}

/* ---- Pagination ---- */
.pagination {
  margin-top: 60px;
  text-align: center;
  font-family: var(--font-mono);
}
.pagination li a,
.pagination li span {
  color: var(--muted);
  font-weight: 500;
  padding: 6px 10px;
  border-radius: 6px;
}
.pagination li a:hover,
.pagination li .current {
  color: var(--accent-strong);
  background: var(--surface-2);
  text-decoration: none;
}

/* ---- Inline code ---- */
code {
  font-family: var(--font-mono);
  font-size: 0.86em;
  font-weight: 400;
  background: var(--inline-code-bg);
  color: var(--fg);
  padding: 2px 6px;
  border-radius: 6px;
}

/* ---- Code blocks: always dark in both schemes, tokenized ---- */
/* Non-highlighted (raw) pre blocks. */
pre {
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.65;
  background: var(--code-bg);
  color: var(--code-fg);
  border: 1px solid var(--code-border);
  border-radius: 12px;
  padding: 18px 20px;
  overflow-x: auto;
}
/* Chroma-highlighted blocks carry INLINE styles on <pre> (background + color)
   and on token <span>s. Inline styles can only be overridden with !important,
   so the two below are the only !important uses in this file. They retint the
   block chrome to --code-bg/--code-fg while leaving per-token span colors
   (Monokai) intact for syntax highlighting. */
.highlight {
  margin: 0 0 22px;
}
.highlight pre {
  background: var(--code-bg) !important;   /* overrides inline background-color */
  color: var(--code-fg) !important;        /* overrides inline color (untokenized text) */
  border: 1px solid var(--code-border);
  border-radius: 12px;
  padding: 18px 20px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.65;
  overflow-x: auto;
}
pre code,
.highlight pre code {
  background: none;
  padding: 0;
  font-size: inherit;
  font-family: inherit;
  color: inherit;
}