/*
  Stylesheet for the Hugo (markdown) site.
  Layout/structure inspired by gamb1t.dev's "minimal" theme;
  color palette adapted to Tacita Labs' warm light brand.

  Loaded only by layouts/_default/baseof.html (Hugo side).
  The original card-based site at the repo root continues to use
  styles.css and is unaffected.
*/

/* Reset & base ----------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f5f2ea;
  --bg-soft: #ede8de;
  --text: #131313;
  --text-muted: #625f58;
  --accent: #1f3554;
  --accent-hover: #345d8c;
  --border: #ddd6c8;
  --code-bg: #e2d8be;
  --tag-bg: #ede8de;
  --max-width: 720px;
}

html { scroll-behavior: smooth; }

body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  font-size: 17px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header / nav ----------------------------------------------------------- */
header.site-header {
  border-bottom: 1px solid var(--border);
  padding: 1rem clamp(1.5rem, 4vw, 4rem);
}

header.site-header nav {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem 2rem;
}

.site-title { display: inline-flex; align-items: center; }
.site-title img.brand-lockup {
  height: 60px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.5rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
}

/* Page layout ------------------------------------------------------------ */
/* The body is a flex column (header / page-layout / footer). When a page
   has `toc: true` in front matter, the toc partial drops an <aside> into
   .page-layout and the grid expands to two columns: TOC sticky on the
   left, main on the right. Without TOC, .page-layout is a single column
   and main is centered as usual. */
.page-layout {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr;
  width: 100%;
}

.page-layout:has(> aside.toc) {
  grid-template-columns: minmax(220px, 16rem) 1fr;
}

/* Main column ------------------------------------------------------------ */
main {
  width: 70%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 2.5rem 0 4rem;
}

/* When the TOC sidebar is present, main lives in the right grid cell --
   so its 70% is relative to that cell, which would feel cramped. Bump
   it to 90% of the cell instead. */
.page-layout:has(> aside.toc) main {
  width: 90%;
  max-width: 900px;
  margin: 0 auto;
}

/* Page header (h1 + optional date / lede) -------------------------------- */
.post-header { margin-bottom: 2rem; }

.post-header h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.post-header .description {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* Article body ----------------------------------------------------------- */
/* The first h1 is the page title (markdown bodies start with `# Heading`). */
.post-content h1 {
  font-size: 2rem;
  margin: 0 0 1rem;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.post-content h2 {
  font-size: 1.8rem;
  margin: 2rem 0 0.75rem;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.post-content h3 {
  font-size: 1.2rem;
  margin: 1.5rem 0 0.5rem;
}

.post-content h4 {
  font-size: 1.05rem;
  margin: 1.25rem 0 0.5rem;
}

.post-content p {
  margin-bottom: 1.25rem;
}

.post-content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.post-content a:hover { color: var(--accent-hover); }

.post-content ul,
.post-content ol {
  margin: 0 0 1.25rem 1.5rem;
}

.post-content li { margin-bottom: 0.35rem; }

.post-content li > p:first-child { margin-top: 0; }

/* Inline code + code blocks --------------------------------------------- */
.post-content code {
  background: var(--code-bg);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
}

.post-content pre {
  background: var(--code-bg);
  padding: 1rem 1.25rem;
  border-radius: 6px;
  margin-bottom: 1.25rem;
  font-size: 0.9em;
  line-height: 1.55;
  /* Wrap long lines instead of horizontal scroll. `pre-wrap` keeps the
     existing whitespace/line breaks; `overflow-wrap: anywhere` lets very
     long unbroken strings (URLs, hashes) break at any character so they
     never overflow the column. */
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.post-content pre code {
  background: none;
  padding: 0;
  font-size: 1em;
  /* Same wrapping rules carry through to the <code> child so
     syntax-highlighted blocks (Hugo wraps highlighted code in
     <code class="language-x">) wrap too. */
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

/* Blockquote ------------------------------------------------------------- */
.post-content blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  margin: 1.25rem 0;
  color: var(--text-muted);
  font-style: italic;
}

/* Images ----------------------------------------------------------------- */
.post-content img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 6px;
  margin: 1.25rem 0;
}

/* Preset size classes for markdown images. Use via the render-image
   hook query string:
       ![alt](/foo.png?class=small)
       ![alt](/foo.png?class=medium)
       ![alt](/foo.png?class=tall)
   Combine with ?w= or ?h= for explicit pixel sizes. */
.post-content img.small  { max-width: 240px; }
.post-content img.medium { max-width: 480px; }
.post-content img.large  { max-width: 720px; }
.post-content img.tall   { max-height: 28rem; width: auto; }
.post-content img.center { margin-left: auto; margin-right: auto; }

.post-content figure { margin: 1.5rem 0; }
.post-content figcaption {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 0.4rem;
}

/* Horizontal rule -------------------------------------------------------- */
.post-content hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

/* Tables ----------------------------------------------------------------- */
.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.95em;
}

.post-content th,
.post-content td {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

.post-content th {
  font-weight: 600;
  color: var(--text);
  background: var(--bg-soft);
}

/* Footer ----------------------------------------------------------------- */
footer.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 2rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

footer.site-footer a {
  color: var(--accent);
  text-decoration: none;
}

footer.site-footer a:hover { text-decoration: underline; }

/* Anchor links inside h2/h3 (for {#id} targets in markdown) -------------- */
.post-content :where(h1, h2, h3, h4, h5, h6) {
  scroll-margin-top: 1rem;
}

/* Shortcode building blocks --------------------------------------------- */

/* {{< eyebrow >}}  -- small uppercase muted kicker line.
   Sits tight to whatever follows so it can be used right above an h1/h2. */
.post-content .eyebrow {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  font-weight: 500;
  margin: 1.5rem 0 0;
}
.post-content .eyebrow:first-child { margin-top: 0; }

/* Heading immediately after an eyebrow loses its top margin so the two
   read as a single unit. */
.post-content .eyebrow + h1,
.post-content .eyebrow + h2,
.post-content .eyebrow + h3 { margin-top: 0.2rem; }

/* {{< brandline >}}  -- italic, slightly smaller, muted. Pairs with the
   eyebrow under the wordmark on the home page. */
.post-content .brand-line {
  font-style: italic;
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0.15rem 0 0;
}

.post-content .brand-line + h1,
.post-content .brand-line + h2,
.post-content .brand-line + h3 { margin-top: 0.5rem; }

/* {{< eyebrow >}} placed below content (e.g. "RUNS LOCALLY - NO ACCOUNT - FREE"
   under the hero buttons): keep the eyebrow shape but give it a small top gap. */
.post-content > .eyebrow,
.post-content p + .eyebrow,
.post-content .button + .eyebrow {
  margin-top: 1.25rem;
}

/* {{< button >}}  -- rounded CTA matching the original site's hero buttons.
   Two variants: primary (filled dark) and secondary (outlined).
   Multiple consecutive {{< button >}} calls render side-by-side. */
.post-content a.button {
  display: inline-block;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.7em 1.6em;
  border-radius: 999px;
  text-decoration: none;
  margin: 0.5rem 0.5rem 0.5rem 0;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  line-height: 1.2;
}

.post-content a.button.primary {
  background: var(--accent);
  color: var(--bg);
  border: 1.5px solid var(--accent);
}
.post-content a.button.primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--bg);
}

.post-content a.button.secondary {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border-strong, #b9b1a1);
}
.post-content a.button.secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* When the buttons end up as the only content of a paragraph (markdown
   wraps consecutive shortcodes in a <p>), tighten the surrounding margins. */
.post-content p:has(> a.button) {
  margin-bottom: 0.5rem;
}

/* {{< split-begin >}} ... {{< split-end >}}  -- side-by-side card row.
   Two cards => 50/50. More cards distribute evenly. Stacks on mobile. */
.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: 1.5rem;
  margin: 1.5rem 0 2rem;
}

/* Shared rounded panel for both side-by-side split cards and the
   standalone {{% card %}} shortcode. */
.split-card,
.post-content > .card {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 2rem 2.25rem;
  box-shadow: 0 12px 32px rgba(33, 27, 14, 0.06);
}

.split-card > :first-child,
.post-content > .card > :first-child { margin-top: 0; }

.split-card > :last-child,
.post-content > .card > :last-child  { margin-bottom: 0; }

/* Standalone cards get vertical spacing (split cards live inside a
   .split grid that handles spacing for them). */
.post-content > .card {
  margin: 1.5rem 0 2rem;
}

@media (max-width: 700px) {
  .split-card,
  .post-content > .card { padding: 1.5rem 1.5rem; }
}

/* {{< carousel >}} ... {{< /carousel >}}  -- prev/next image carousel.
   JS in static/markdown-site.js wires up the navigation and toggles
   `.is-active` on slides + dots. */
.post-content .carousel {
  position: relative;
  margin: 1.5rem 0;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 1.5rem 3.5rem 1.25rem;
}

.post-content .carousel-viewport {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 12rem;
}

.post-content .carousel-slide {
  display: none;
  margin: 0;
  width: 100%;
  text-align: center;
}

.post-content .carousel-slide.is-active { display: block; }

.post-content .carousel-slide img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 0 auto;
  display: block;
}

.post-content .carousel-slide figcaption {
  margin-top: 0.75rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.post-content .carousel-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 2.4rem;
  height: 2.4rem;
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  z-index: 2;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.post-content .carousel-nav.prev { left: 0.5rem; }
.post-content .carousel-nav.next { right: 0.5rem; }

.post-content .carousel-nav:hover {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

.post-content .carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.4rem;
  margin-top: 1rem;
}

.post-content .carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 0;
  background: var(--border);
  cursor: pointer;
  padding: 0;
  transition: background 0.15s ease, transform 0.15s ease;
}

.post-content .carousel-dot:hover { transform: scale(1.2); }
.post-content .carousel-dot.is-active { background: var(--accent); }

@media (max-width: 600px) {
  .post-content .carousel { padding: 1rem 2.5rem 1rem; }
  .post-content .carousel-nav { width: 2rem; height: 2rem; font-size: 1.1rem; }
  .post-content .carousel-nav.prev { left: 0.25rem; }
  .post-content .carousel-nav.next { right: 0.25rem; }
}

/* TOC sidebar (left side, sticky while scrolling) ------------------------ */
aside.toc {
  position: sticky;
  top: 2rem;
  align-self: start;
  max-height: calc(100vh - 4rem);
  overflow-y: auto;
  padding: 2.5rem 1.5rem 2.5rem 2rem;
  border-right: 1px solid var(--border);
  background: var(--bg);
  font-size: 0.92rem;
  line-height: 1.5;
}

.toc-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  font-weight: 500;
  margin: 0 0 0.75rem;
}

aside.toc nav ul {
  margin: 0;
  padding-left: 0;
  list-style: none;
}

aside.toc nav ul ul {
  margin-top: 0.25rem;
  padding-left: 1rem;
}

aside.toc nav li { margin-bottom: 0.4rem; }

aside.toc nav a {
  color: var(--text-muted);
  text-decoration: none;
  display: block;
  padding: 0.15rem 0;
  border-left: 2px solid transparent;
  padding-left: 0.5rem;
  margin-left: -0.5rem;
}

aside.toc nav a:hover {
  color: var(--accent);
  border-left-color: var(--accent);
}

/* Responsive ------------------------------------------------------------- */
/* Below 900px: TOC stops being a sidebar and sits inline above main. */
@media (max-width: 900px) {
  .page-layout:has(> aside.toc) {
    grid-template-columns: 1fr;
  }
  aside.toc {
    position: static;
    border-right: none;
    border-bottom: 1px solid var(--border);
    max-height: none;
    padding: 1.25rem 1.5rem;
  }
  .page-layout:has(> aside.toc) main {
    width: 92%;
    max-width: 1100px;
  }
}

@media (max-width: 600px) {
  header.site-header { padding: 0.75rem 1rem; }
  main {
    width: 92%;          /* slightly more breathing room on phones */
    padding: 1.5rem 0 3rem;
  }
  header.site-header nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  .nav-links a { margin-left: 0; margin-right: 1rem; }
  .post-header h1 { font-size: 1.7rem; }
  .post-content h1 { font-size: 1.5rem; }
  .post-content h2 { font-size: 1.4rem; }
}