/* ============================================================
   Spatiotemporal Movement — Whimsical Garden theme
   Tender peach-pink + minty greens + earthy browns
   ============================================================ */

:root {
  /* Palette */
  --peach-50: #fdf6f1;
  --peach-100: #fbe9dd;
  --peach-200: #f6d2bb;
  --peach-300: #efb693;
  --peach-400: #e3a587;
  --peach-500: #d28868;
  --peach-600: #b66b4d;

  --mint-50:  #effaf3;
  --mint-100: #d8f1e0;
  --mint-200: #b6e3c4;
  --mint-300: #8bcfa3;
  --mint-400: #5fb685;
  --mint-500: #3f9568;
  --mint-600: #2f714f;

  --earth-50:  #f7f1ea;
  --earth-100: #ead8c4;
  --earth-200: #d6b893;
  --earth-300: #b88f63;
  --earth-400: #946b46;
  --earth-500: #6f4f33;
  --earth-600: #4b3522;

  --ink-900: #34281f;
  --ink-700: #5a4537;
  --ink-500: #836f5f;
  --ink-300: #b6a799;
  --ink-100: #e8ddd2;

  --paper:    #fffaf4;
  --paper-2:  #fdf3e8;
  --shadow-sm: 0 1px 2px rgba(95, 60, 30, 0.06);
  --shadow-md: 0 8px 24px rgba(95, 60, 30, 0.08);
  --shadow-lg: 0 20px 50px rgba(95, 60, 30, 0.12);

  /* Layout */
  --header-h: 72px;
  --content-max: 1320px;
  --content-narrow: 880px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  /* Type */
  --font-sans: "Inter", "Segoe UI", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --font-display: "Fraunces", "Source Serif 4", "Georgia", "Iowan Old Style", serif;
  --font-mono: "JetBrains Mono", "Fira Code", "SFMono-Regular", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  /* Offset for sticky header so anchor jumps don't hide content */
  scroll-padding-top: calc(var(--header-h) + 16px);
  background: var(--paper);
  color: var(--ink-900);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(1200px 600px at 90% -200px, rgba(232, 167, 130, 0.18), transparent 60%),
    radial-gradient(900px 500px at -10% 10%, rgba(143, 207, 163, 0.18), transparent 60%),
    var(--paper);
}

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

a {
  color: var(--peach-600);
  text-decoration: none;
  border-bottom: 1px solid rgba(182, 107, 77, 0.25);
  transition: color .15s ease, border-color .15s ease, background-color .15s ease;
}
a:hover {
  color: var(--mint-600);
  border-bottom-color: rgba(47, 113, 79, 0.55);
}
a:focus-visible {
  outline: 3px solid var(--mint-300);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection { background: var(--peach-200); color: var(--ink-900); }

/* ---------- Layout helpers ---------- */

.wrap {
  width: 100%;
  max-width: var(--content-max);
  padding: 0 24px;
  margin: 0 auto;
}

.flow > * + * { margin-top: 1em; }

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  background: rgba(255, 250, 244, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid rgba(182, 107, 77, 0.15);
  box-shadow: var(--shadow-sm);
}

.site-header__inner {
  display: flex;
  align-items: center;
  height: 100%;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--ink-900);
  border: 0;
}
.brand:hover { color: var(--ink-900); }
.brand__mark {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  filter: drop-shadow(0 2px 4px rgba(95, 60, 30, 0.15));
}
.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.brand__title { font-weight: 700; font-size: 1rem; letter-spacing: .01em; }
.brand__sub   { font-size: 0.72rem; color: var(--ink-500); letter-spacing: .12em; text-transform: uppercase; }

.nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  color: var(--ink-700);
  font-weight: 500;
  font-size: 0.95rem;
  background: transparent;
}
.nav a .nav__icon { display: inline-flex; }
.nav a:hover {
  color: var(--mint-600);
  background: var(--mint-50);
  border-color: rgba(95, 182, 133, 0.35);
}
.nav a[aria-current="page"] {
  background: var(--peach-100);
  color: var(--peach-600);
  border-color: rgba(232, 167, 130, 0.55);
}
.nav a[aria-current="page"]:hover {
  background: var(--peach-200);
}

.nav-toggle {
  display: none;
  margin-left: auto;
  background: var(--peach-100);
  color: var(--ink-700);
  border: 1px solid rgba(182, 107, 77, 0.25);
  border-radius: 999px;
  padding: 8px 12px;
  cursor: pointer;
}

@media (max-width: 820px) {
  .nav-toggle { display: inline-flex; align-items: center; gap: 8px; }
  .nav {
    position: absolute;
    inset: var(--header-h) 12px auto 12px;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    padding: 12px;
    background: var(--paper);
    border: 1px solid rgba(182, 107, 77, 0.18);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    display: none;
  }
  .nav.is-open { display: flex; }
  .nav a { width: 100%; }
}

/* ---------- Main content layout ---------- */

main { flex: 1; }

.page {
  padding: 40px 0 80px;
}

.page__container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 24px;
}

@media (min-width: 1100px) {
  .page--article .page__container {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 48px;
  }
}

article.article {
  min-width: 0; /* permit grid shrink */
}

article.article h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 1.4rem + 2.2vw, 3rem);
  line-height: 1.15;
  margin: 0 0 .4em;
  background: linear-gradient(135deg, var(--peach-500), var(--mint-500) 60%, var(--earth-400));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: -0.01em;
}

article.article h2 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 1.1rem + 1vw, 1.9rem);
  margin-top: 2.4em;
  margin-bottom: 0.6em;
  color: var(--earth-500);
  letter-spacing: -0.005em;
  position: relative;
  padding-left: 18px;
}
article.article h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.4em;
  bottom: 0.4em;
  width: 6px;
  border-radius: 6px;
  background: linear-gradient(180deg, var(--peach-400), var(--mint-400));
}

article.article h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-top: 2em;
  margin-bottom: 0.5em;
  color: var(--mint-600);
}
article.article h4 {
  font-size: 1.05rem;
  margin-top: 1.6em;
  margin-bottom: 0.4em;
  color: var(--earth-500);
}

article.article p {
  margin: 0 0 1.05em;
  color: var(--ink-900);
}

article.article strong { color: var(--earth-600); }
article.article em { color: var(--mint-600); font-style: italic; }

article.article ul, article.article ol {
  padding-left: 1.4em;
  margin: 0 0 1.1em;
}
article.article li { margin: 0.25em 0; }
article.article li::marker { color: var(--peach-400); }

/* Hide list bullet when the item is a checkbox task */
article.article li.task-list-item,
article.article ul .task-list-item {
  list-style: none;
  margin-left: -1.4em;
  padding-left: 0.4em;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--ink-900);
}
article.article li.task-list-item input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 6px;
  border: 2px solid var(--peach-400);
  background: var(--paper);
  cursor: pointer;
  margin-top: 4px;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color .15s ease, border-color .15s ease, transform .1s ease;
}
article.article li.task-list-item input[type="checkbox"]:hover {
  transform: translateY(-1px);
  border-color: var(--peach-500);
}
article.article li.task-list-item input[type="checkbox"]:checked {
  background: var(--mint-400);
  border-color: var(--mint-500);
}
article.article li.task-list-item input[type="checkbox"]:checked::after {
  content: "";
  display: block;
  width: 6px;
  height: 11px;
  border-right: 2px solid white;
  border-bottom: 2px solid white;
  transform: rotate(45deg) translate(-1px, -1px);
}
article.article li.task-list-item.is-done {
  color: var(--ink-500);
}
article.article li.task-list-item.is-done > *:not(input) {
  text-decoration: line-through;
  text-decoration-color: rgba(131, 111, 95, 0.6);
}

/* Inline code: subtle peach background, no border */
article.article :not(pre) > code {
  background: var(--peach-50);
  color: var(--earth-600);
  font-family: var(--font-mono);
  font-size: 0.92em;
  padding: 0.12em 0.42em;
  border-radius: 6px;
  border: 0;
  white-space: break-spaces;
}

/* Tables */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1.4em 0;
  border-radius: var(--radius-md);
  background: var(--paper-2);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(182, 107, 77, 0.12);
}
.table-wrap table {
  border-collapse: collapse;
  width: 100%;
  min-width: 540px;
}
.table-wrap th, .table-wrap td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(182, 107, 77, 0.12);
  vertical-align: top;
}
.table-wrap thead th {
  background: linear-gradient(180deg, var(--peach-100), var(--peach-50));
  color: var(--earth-600);
  font-weight: 600;
  letter-spacing: 0.02em;
  font-size: 0.9rem;
  text-transform: uppercase;
  border-bottom: 2px solid rgba(232, 167, 130, 0.5);
}
.table-wrap tbody tr:last-child td { border-bottom: 0; }
.table-wrap tbody tr:hover { background: var(--mint-50); }

/* ---------- Code blocks ---------- */

.code-block {
  margin: 1.6em 0;
  border-radius: var(--radius-md);
  background: var(--paper-2);
  border: 1px solid rgba(182, 107, 77, 0.18);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.code-block__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: linear-gradient(180deg, var(--peach-100), var(--peach-50));
  border-bottom: 1px solid rgba(182, 107, 77, 0.18);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--earth-500);
}
.code-block__lang {
  background: var(--paper);
  padding: 2px 10px;
  border-radius: 999px;
  border: 1px solid rgba(182, 107, 77, 0.2);
  color: var(--earth-500);
}
.code-block__copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--paper);
  border: 1px solid rgba(182, 107, 77, 0.2);
  color: var(--mint-600);
  font: inherit;
  cursor: pointer;
  font-size: 0.78rem;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease;
}
.code-block__copy:hover {
  background: var(--mint-50);
  border-color: rgba(95, 182, 133, 0.5);
}
.code-block__copy.is-copied {
  background: var(--mint-100);
  color: var(--mint-600);
  border-color: rgba(95, 182, 133, 0.6);
}

.code-block pre {
  margin: 0;
  padding: 18px 20px;
  overflow-x: auto;
  background: transparent;
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* Prism overrides — light scheme tuned to palette */
.code-block code[class*="language-"],
.code-block pre[class*="language-"] {
  color: var(--ink-900);
  background: transparent;
  text-shadow: none;
}
.token.comment, .token.prolog, .token.doctype, .token.cdata { color: #8e7e6e; font-style: italic; }
.token.punctuation { color: var(--ink-500); }
.token.namespace { opacity: .7; }
.token.property, .token.tag, .token.boolean, .token.number, .token.constant, .token.symbol, .token.deleted { color: var(--peach-600); }
.token.selector, .token.attr-name, .token.string, .token.char, .token.builtin, .token.inserted { color: var(--mint-600); }
.token.operator, .token.entity, .token.url, .language-css .token.string, .style .token.string { color: var(--earth-500); }
.token.atrule, .token.attr-value, .token.keyword { color: #a04a8a; }
.token.function, .token.class-name { color: #2a7fb0; }
.token.regex, .token.important, .token.variable { color: var(--peach-500); }

/* ---------- Mermaid ---------- */
.mermaid {
  background: var(--paper-2);
  border: 1px solid rgba(182, 107, 77, 0.18);
  border-radius: var(--radius-md);
  padding: 18px;
  margin: 1.6em 0;
  text-align: center;
  overflow: auto;
}

/* ---------- Breadcrumbs ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--ink-500);
  margin: 0 0 18px;
}
.breadcrumbs a {
  color: var(--ink-700);
  border: 0;
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--peach-50);
}
.breadcrumbs a:hover { color: var(--mint-600); background: var(--mint-50); }
.breadcrumbs span.sep { color: var(--ink-300); }

/* ---------- Footer ---------- */
.site-footer {
  margin-top: auto;
  background: linear-gradient(180deg, transparent, var(--peach-50) 30%, var(--peach-100));
  border-top: 1px solid rgba(182, 107, 77, 0.18);
  padding: 48px 0 36px;
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  align-items: start;
}
@media (max-width: 820px) {
  .site-footer__grid { grid-template-columns: 1fr; gap: 24px; }
}
.site-footer h4 {
  font-family: var(--font-display);
  margin: 0 0 12px;
  color: var(--earth-600);
  font-size: 1rem;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.site-footer a { color: var(--ink-700); border: 0; }
.site-footer a:hover { color: var(--mint-600); }
.site-footer__about p { color: var(--ink-700); margin: 0; }
.site-footer__bottom {
  margin-top: 32px;
  font-size: 0.85rem;
  color: var(--ink-500);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  border-top: 1px dashed rgba(182, 107, 77, 0.25);
  padding-top: 16px;
}

/* ---------- Homepage hero & cards ---------- */
.hero {
  padding: 56px 0 24px;
  position: relative;
}
.hero__lede {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.2rem, 1.4rem + 3vw, 3.6rem);
  line-height: 1.1;
  margin: 0 0 0.4em;
  letter-spacing: -0.015em;
  color: var(--ink-900);
}
.hero__lede em {
  font-style: normal;
  background: linear-gradient(135deg, var(--peach-500) 5%, var(--mint-500) 60%, var(--earth-400));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__sub {
  font-size: 1.15rem;
  color: var(--ink-700);
  max-width: 70ch;
  margin: 0 0 18px;
}

.hero__ctas {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin: 28px 0 8px;
}
.cta-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 22px 20px;
  background: var(--paper);
  border-radius: var(--radius-md);
  border: 1px solid rgba(182, 107, 77, 0.18);
  box-shadow: var(--shadow-sm);
  color: var(--ink-900);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  border-bottom-width: 1px;
}
.cta-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(95, 182, 133, 0.5);
  color: var(--ink-900);
}
.cta-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 6px;
  background: linear-gradient(180deg, var(--peach-400), var(--mint-400));
}
.cta-card[data-accent="peach"]::before { background: linear-gradient(180deg, var(--peach-500), var(--peach-300)); }
.cta-card[data-accent="mint"]::before  { background: linear-gradient(180deg, var(--mint-500), var(--mint-300)); }
.cta-card[data-accent="earth"]::before { background: linear-gradient(180deg, var(--earth-500), var(--earth-300)); }

.cta-card__icon {
  width: 52px; height: 52px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 16px;
  margin-bottom: 4px;
}
.cta-card[data-accent="peach"] .cta-card__icon { background: var(--peach-100); color: var(--peach-600); }
.cta-card[data-accent="mint"]  .cta-card__icon { background: var(--mint-100);  color: var(--mint-600); }
.cta-card[data-accent="earth"] .cta-card__icon { background: var(--earth-100); color: var(--earth-500); }

.cta-card__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0;
  color: var(--ink-900);
}
.cta-card__summary {
  color: var(--ink-700);
  font-size: 0.98rem;
  line-height: 1.55;
}
.cta-card__cta {
  margin-top: auto;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--mint-600);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.cta-card:hover .cta-card__cta { color: var(--peach-600); }

/* Homepage section blocks */
.section {
  padding: 56px 0;
}
.section + .section { border-top: 1px solid rgba(182, 107, 77, 0.12); }
.section__head {
  display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap;
  gap: 12px; margin-bottom: 22px;
}
.section__head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.1rem + 1.2vw, 2rem);
  margin: 0;
  color: var(--earth-500);
}
.section__head .eyebrow {
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mint-600);
}

.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.tile {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 18px 16px;
  border-radius: var(--radius-sm);
  background: var(--paper);
  border: 1px solid rgba(182, 107, 77, 0.16);
  color: var(--ink-900);
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.tile:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  border-color: rgba(95, 182, 133, 0.45);
  color: var(--ink-900);
}
.tile__title { font-weight: 600; font-family: var(--font-display); color: var(--earth-600); }
.tile__sub   { color: var(--ink-500); font-size: 0.88rem; }

/* ---------- Article meta + related ---------- */

.related {
  margin-top: 56px;
  padding: 24px;
  border-radius: var(--radius-md);
  background: var(--peach-50);
  border: 1px solid rgba(232, 167, 130, 0.35);
}
.related h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  color: var(--earth-500);
  font-size: 1.1rem;
}
.related ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.related a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--mint-600);
  border: 0;
}
.related a::before {
  content: "→";
  color: var(--peach-500);
}

/* Sticky-ish article TOC sidebar (desktop only) */
.toc {
  font-size: 0.92rem;
  position: sticky;
  top: calc(var(--header-h) + 24px);
  align-self: start;
}
.toc h4 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  color: var(--earth-500);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.toc ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.toc a {
  color: var(--ink-700);
  border: 0;
  display: inline-block;
  padding: 2px 6px;
  border-radius: 6px;
}
.toc a:hover { background: var(--mint-50); color: var(--mint-600); }
@media (max-width: 1099px) { .toc { display: none; } }

/* ---------- FAQ accordion ---------- */
.faq {
  display: grid;
  gap: 10px;
  margin: 1em 0;
}
.faq details {
  background: var(--paper);
  border: 1px solid rgba(182, 107, 77, 0.18);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: box-shadow .15s ease, border-color .15s ease;
}
.faq details[open] {
  border-color: rgba(95, 182, 133, 0.5);
  box-shadow: var(--shadow-sm);
}
.faq summary {
  cursor: pointer;
  padding: 14px 18px;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--earth-600);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--peach-500);
  transition: transform .2s ease;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .faq__body {
  padding: 0 18px 16px;
  color: var(--ink-900);
}

/* ---------- Skip link ---------- */
.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--mint-500);
  color: white;
  padding: 10px 14px;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}
.skip:focus { left: 50%; transform: translateX(-50%); z-index: 100; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}