/* ═══════════════════════════════════════════════════════════════════
   palingenesis — Tufte-inspired documentation
   
   Principles (from Tufte):
   - Content first, chrome last
   - High data-to-ink ratio
   - Sidenotes over footnotes
   - Let the typography do the work
   ═══════════════════════════════════════════════════════════════════ */

/* ── Fonts: ET Book (Tufte's choice) via Google Fonts fallback ──── */
@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,200..800;1,6..72,200..800&family=JetBrains+Mono:wght@300;400;500&display=swap');

/* ── Color: near-invisible chrome, content speaks ──────────────── */
:root,
[data-md-color-scheme="default"] {
  --md-primary-fg-color: #fffff8;
  --md-primary-fg-color--light: #fffff8;
  --md-primary-fg-color--dark: #f4f4ec;
  --md-primary-bg-color: #111;
  --md-accent-fg-color: #a00000;
  --md-typeset-a-color: #a00000;
  --md-default-bg-color: #fffff8;
  --md-default-fg-color: #111;
  --md-default-fg-color--light: #454545;
  --md-default-fg-color--lighter: #777;
  --md-default-fg-color--lightest: #ccc;
  --md-code-bg-color: #f7f7f0;
}

[data-md-color-scheme="slate"] {
  --md-primary-fg-color: #151515;
  --md-primary-fg-color--light: #1a1a1a;
  --md-primary-fg-color--dark: #0a0a0a;
  --md-primary-bg-color: #ddd;
  --md-accent-fg-color: #c86450;
  --md-typeset-a-color: #c86450;
  --md-default-bg-color: #151515;
  --md-default-fg-color: #ddd4c8;
  --md-default-fg-color--light: #a09888;
  --md-default-fg-color--lighter: #706860;
  --md-default-fg-color--lightest: #333;
  --md-code-bg-color: #1c1c1c;
}

/* ── Typography: Newsreader (modern Tufte-ish serif) ───────────── */
.md-typeset {
  font-family: 'Newsreader', 'ET Book', Palatino, 'Palatino Linotype', 
               'Palatino LT STD', 'Book Antiqua', Georgia, serif;
  font-size: 0.88rem;
  line-height: 1.8;
  letter-spacing: 0.003em;
  -webkit-font-smoothing: antialiased;
}

/* Tufte: titles are light, not screaming */
.md-typeset h1 {
  font-weight: 300;
  font-size: 2.2rem;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-top: 0;
  margin-bottom: 1.5rem;
  font-style: italic;
}

.md-typeset h2 {
  font-weight: 400;
  font-size: 1.3rem;
  font-style: italic;
  margin-top: 3rem;
  margin-bottom: 0.6rem;
  border-bottom: none;
}

.md-typeset h3 {
  font-weight: 400;
  font-size: 1rem;
  font-style: normal;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-variant: small-caps;
  margin-top: 2rem;
}

/* Tufte: paragraphs have generous width, not full bleed */
.md-content {
  max-width: 760px;
  margin: 0 auto;
}

/* ── Links: subtle, discoverable ───────────────────────────────── */
.md-typeset a {
  text-decoration: none;
  background-image: linear-gradient(var(--md-accent-fg-color), var(--md-accent-fg-color));
  background-position: 0% 93%;
  background-repeat: no-repeat;
  background-size: 100% 1px;
  transition: background-size 0.15s ease;
}

.md-typeset a:hover {
  background-size: 100% 2px;
}

/* ── Code: quiet, functional ───────────────────────────────────── */
.md-typeset code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.76rem;
  font-weight: 400;
  padding: 0.15em 0.4em;
  border-radius: 2px;
  border: none;
}

.md-typeset pre {
  border-radius: 0;
  border: none;
  border-left: 3px solid var(--md-default-fg-color--lightest);
  box-shadow: none;
  padding: 1em 1.2em;
  margin: 1.5em 0;
}

.md-typeset pre code {
  font-size: 0.74rem;
  line-height: 1.6;
}

/* ── Tables: Tufte-style minimal (no vertical lines, minimal horizontal) */
.md-typeset table:not([class]) {
  font-size: 0.78rem;
  border-collapse: collapse;
  border: none;
  box-shadow: none;
  width: 100%;
}

.md-typeset table:not([class]) thead {
  border-bottom: 2px solid var(--md-default-fg-color);
}

.md-typeset table:not([class]) th {
  font-weight: 400;
  font-variant: small-caps;
  letter-spacing: 0.05em;
  text-align: left;
  padding: 0.5em 1em 0.5em 0;
  border: none;
  background: none;
}

.md-typeset table:not([class]) td {
  padding: 0.4em 1em 0.4em 0;
  border: none;
  border-bottom: 1px solid var(--md-default-fg-color--lightest);
}

.md-typeset table:not([class]) tr:last-child td {
  border-bottom: none;
}

/* ── Admonitions: Tufte sidenote style ─────────────────────────── */
.md-typeset .admonition,
.md-typeset details {
  border: none;
  border-left: 2px solid var(--md-default-fg-color--lighter);
  border-radius: 0;
  box-shadow: none;
  background: transparent;
  font-size: 0.82rem;
  padding: 0.2em 0 0.2em 1.2em;
  margin: 1.5em 0;
}

.md-typeset .admonition-title,
.md-typeset details summary {
  font-variant: small-caps;
  font-weight: 400;
  letter-spacing: 0.04em;
  background: none !important;
  border: none;
  padding-left: 0;
  margin: 0;
}

.md-typeset .admonition-title::before,
.md-typeset details summary::before {
  display: none;
}

/* ── Horizontal rules: Tufte ornament ──────────────────────────── */
.md-typeset hr {
  border: none;
  text-align: center;
  margin: 3em 0;
}

.md-typeset hr::after {
  content: "⁂";
  font-size: 1.2rem;
  color: var(--md-default-fg-color--lighter);
}

/* ── Header: minimal, retreats ─────────────────────────────────── */
.md-header {
  box-shadow: none;
  border-bottom: 1px solid var(--md-default-fg-color--lightest);
}

/* ── Navigation: lighter presence ──────────────────────────────── */
.md-nav__item .md-nav__link {
  font-size: 0.74rem;
  letter-spacing: 0.01em;
}

.md-tabs__link {
  font-size: 0.72rem;
  font-variant: small-caps;
  letter-spacing: 0.06em;
  text-transform: lowercase;
}

/* ── Footer: nearly invisible ──────────────────────────────────── */
.md-footer {
  opacity: 0.4;
  transition: opacity 0.3s;
}
.md-footer:hover {
  opacity: 1;
}

/* ── Blockquotes: Tufte epigraph style ─────────────────────────── */
.md-typeset blockquote {
  border-left: none;
  font-style: italic;
  padding: 0 0 0 1em;
  margin: 2em 0 2em 1em;
  font-size: 0.92em;
  opacity: 0.85;
}

/* ── Selection color ───────────────────────────────────────────── */
::selection {
  background: rgba(160, 0, 0, 0.15);
}

/* ═══════════════════════════════════════════════════════════════════
   Landing page hero (index.md)
   Kept here (not inline in index.md) so it loads in <head> and survives
   Material's instant navigation instead of only applying on hard refresh.
   ═══════════════════════════════════════════════════════════════════ */

/* Drop the top spacer only on the landing page (the one carrying .hero) */
.md-content__inner:has(> .hero:first-child)::before {
  display: none;
}
.md-content__inner > .hero:first-child {
  margin-top: -1.2rem;
}
.hero {
  position: relative;
  /* break out of the centered content column to span the full viewport width */
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  margin-bottom: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 7rem 1.5rem 6rem;
  overflow: hidden;
  background-image:
    linear-gradient(180deg, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0.35) 45%, rgba(0,0,0,0.7) 100%),
    url("../assets/pgs.png");
  background-size: cover;
  background-position: center 40%;
  color: #f4f1ec;
}
.hero > * {
  max-width: 680px;
  width: 100%;
}
.hero .headerlink {
  display: none;
}
.hero h1 {
  font-size: 3.2rem !important;
  font-weight: 200 !important;
  font-style: italic !important;
  letter-spacing: -0.03em;
  margin-bottom: 0.3em;
  line-height: 1.1;
  color: #ffffff !important;
  text-shadow: 0 2px 24px rgba(0,0,0,0.6);
}
.hero .subtitle {
  font-size: 1.1rem;
  opacity: 0.85;
  margin-bottom: 2.5rem;
  font-style: italic;
}
.hero .tagline {
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 2.5rem;
  color: #f4f1ec;
  text-shadow: 0 1px 12px rgba(0,0,0,0.55);
}
.hero code {
  font-size: 0.85rem !important;
  padding: 0.8em 1.5em !important;
  display: inline-block;
  margin: 1rem 0;
  background: rgba(0,0,0,0.45) !important;
  color: #ffffff !important;
}
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  max-width: 720px;
  margin: 3rem auto;
  text-align: left;
}
.pillars .pillar h3 {
  font-size: 0.8rem !important;
  text-transform: uppercase !important;
  font-style: normal !important;
  letter-spacing: 0.08em;
  opacity: 0.5;
  margin-bottom: 0.5em;
}
.pillars .pillar p {
  font-size: 0.88rem;
  line-height: 1.6;
}
.numbers {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin: 3rem 0;
  flex-wrap: wrap;
}
.numbers .num {
  text-align: center;
}
.numbers .num .value {
  font-size: 2rem;
  font-weight: 200;
  font-style: italic;
  display: block;
}
.numbers .num .label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.5;
}