:root {
  color-scheme: light;
  --bg: #f5efe3;
  --bg-strong: #efe4d1;
  --surface: rgba(255, 250, 240, 0.82);
  --surface-strong: rgba(255, 248, 237, 0.95);
  --surface-border: rgba(17, 62, 64, 0.12);
  --text: #143031;
  --muted: #5a6f6e;
  --accent-a: #ff7f50;
  --accent-b: #0c9b8a;
  --accent-c: #f0b44d;
  --accent-d: #2f5a89;
  --shadow: 0 24px 60px rgba(34, 52, 52, 0.12);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --content-width: 1320px;
  --heading-font: "Avenir Next Condensed", "Franklin Gothic Medium", "Trebuchet MS", sans-serif;
  --body-font: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  --ui-font: "Avenir Next", "Segoe UI", "Trebuchet MS", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(255, 127, 80, 0.22), transparent 28%),
    radial-gradient(circle at top right, rgba(12, 155, 138, 0.2), transparent 24%),
    radial-gradient(circle at 30% 80%, rgba(240, 180, 77, 0.18), transparent 22%),
    linear-gradient(180deg, var(--bg) 0%, #f8f4eb 54%, #efe1c8 100%);
  color: var(--text);
  font-family: var(--body-font);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    linear-gradient(rgba(20, 48, 49, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 48, 49, 0.04) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.4), transparent 78%);
  pointer-events: none;
  z-index: -2;
}

a {
  color: inherit;
}

img {
  max-width: 100%;
}

.page-shell {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 32px 20px 72px;
}

.hero {
  position: relative;
  margin-bottom: 28px;
}

.hero-card,
.panel,
.entry-card,
.subsection-shell,
.empty-state {
  border: 1px solid var(--surface-border);
  background: var(--surface);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}

.hero-card {
  position: relative;
  isolation: isolate;
  border-radius: var(--radius-xl);
  padding: 34px;
  overflow: hidden;
}

.hero-card > * {
  position: relative;
  z-index: 1;
}

.hero-card::after {
  content: "";
  position: absolute;
  inset: auto -6% -14% auto;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(12, 155, 138, 0.22), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.awesome-badge {
  display: inline-block;
  text-decoration: none;
}

.awesome-badge img {
  display: block;
  height: 28px;
  width: auto;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--heading-font);
  line-height: 0.95;
  letter-spacing: -0.03em;
}

h1 {
  margin-top: 22px;
  font-size: clamp(3.6rem, 8vw, 7rem);
  max-width: 10ch;
}

.tagline {
  margin: 18px 0 0;
  color: var(--muted);
  font: 600 1.08rem/1.55 var(--ui-font);
}

.intro {
  margin: 18px 0 0;
  font-size: 1.12rem;
  line-height: 1.8;
}

.hero-tools {
  margin-top: 34px;
}

.search-input {
  width: 100%;
  padding: 15px 18px;
  border: 1px solid rgba(20, 48, 49, 0.14);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--text);
  font: 500 1rem/1.2 var(--ui-font);
}

.search-input:focus {
  outline: 2px solid rgba(12, 155, 138, 0.4);
  outline-offset: 2px;
}

.toc-link:hover,
.entry-link:hover {
  color: var(--accent-b);
}

.layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.panel {
  border-radius: var(--radius-lg);
}

.toc-panel {
  position: sticky;
  top: 20px;
  padding: 22px 18px;
}

.toc-title {
  margin: 0 0 14px;
  font: 700 1rem/1 var(--ui-font);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.toc {
  display: grid;
  gap: 10px;
}

.toc-link {
  display: block;
  padding: 9px 10px;
  border-radius: 12px;
  color: var(--muted);
  font: 600 0.94rem/1.3 var(--ui-font);
  text-decoration: none;
  transition: background-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.toc-link:hover {
  background: rgba(20, 48, 49, 0.05);
  transform: translateX(4px);
}

.toc-sub {
  margin-left: 14px;
  font-size: 0.88rem;
}

.content {
  display: grid;
  gap: 22px;
}

.section-shell {
  --accent: var(--accent-a);
  position: relative;
  isolation: isolate;
  padding: 26px;
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, var(--surface-strong), rgba(255, 251, 245, 0.78));
  border: 1px solid rgba(20, 48, 49, 0.1);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.section-shell > * {
  position: relative;
  z-index: 1;
}

.section-shell::before {
  content: "";
  position: absolute;
  inset: 1px auto 1px 1px;
  width: 8px;
  background: linear-gradient(180deg, var(--accent), rgba(20, 48, 49, 0.2));
  z-index: 0;
}

.section-header {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  align-items: start;
  margin-bottom: 18px;
}

.section-kicker {
  color: var(--muted);
  font: 700 0.82rem/1 var(--ui-font);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.section-title {
  font-size: clamp(2.2rem, 3vw, 3.3rem);
}

.section-copy {
  margin: 10px 0 0;
  max-width: 60rem;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.75;
}

.subsection-shell {
  padding: 20px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.54);
}

.subsection-shell + .subsection-shell {
  margin-top: 18px;
}

.subsection-title {
  font-size: clamp(1.55rem, 2vw, 2rem);
}

.subsection-copy {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.7;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
}

.section-shell > .card-grid {
  margin-top: 22px;
}

.subsection-shell .card-grid {
  margin-top: 18px;
}

.entry-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 18px;
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(255, 250, 241, 0.74));
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.entry-card:hover {
  transform: translateY(-3px);
  border-color: rgba(20, 48, 49, 0.16);
  box-shadow: 0 24px 42px rgba(34, 52, 52, 0.16);
}

.entry-topline {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-start;
}

.entry-link {
  font: 700 1.2rem/1.15 var(--ui-font);
  text-decoration: none;
}

.entry-link::after {
  content: "↗";
  margin-left: 8px;
  font-size: 0.9em;
}

.entry-description {
  margin: 0;
  color: #2a4647;
  font-size: 1rem;
  line-height: 1.72;
}

.entry-description code,
.section-copy code,
.subsection-copy code {
  padding: 0.15em 0.4em;
  border-radius: 999px;
  background: rgba(20, 48, 49, 0.08);
  font: 600 0.92em/1 var(--ui-font);
}

.entry-description strong {
  font-family: var(--ui-font);
}

.inline-badge {
  display: inline-block;
  height: 20px;
  vertical-align: middle;
  margin-left: 6px;
  border-radius: 999px;
}

.note-list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.note-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.58);
  font-size: 1rem;
  line-height: 1.7;
}

.note-item::before {
  content: "•";
  color: var(--accent-b);
  font: 700 1.5rem/1 var(--ui-font);
}

.empty-state {
  padding: 22px;
  border-radius: var(--radius-lg);
  text-align: center;
}

.empty-state[hidden] {
  display: none;
}

.loading,
.error {
  padding: 28px;
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
  font: 600 1rem/1.6 var(--ui-font);
}

.loading {
  margin-top: 10px;
}

.error {
  color: #7f2b21;
}

@media (max-width: 1080px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .toc-panel {
    position: static;
  }

  .toc {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  }
}

@media (max-width: 760px) {
  .page-shell {
    padding: 18px 14px 56px;
  }

  .hero-card,
  .section-shell {
    padding: 22px;
  }

  h1 {
    font-size: clamp(2.8rem, 16vw, 4.3rem);
  }

  .section-header {
    grid-template-columns: 1fr;
  }

  .section-kicker {
    writing-mode: initial;
    transform: none;
  }
}

/* --- additions for the prerendered multi-page build --- */

.breadcrumbs {
  color: var(--muted);
  font: 600 0.9rem/1.4 var(--ui-font);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumbs li + li::before {
  content: "\203A";
  margin-right: 8px;
}

.breadcrumbs a {
  text-decoration: none;
}

.breadcrumbs a:hover {
  color: var(--accent-b);
}

.hero-card .breadcrumbs + h1 {
  margin-top: 16px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 18px 0 0;
  color: var(--muted);
  font: 600 0.9rem/1.4 var(--ui-font);
}

.entry-title {
  margin: 0;
  font: 700 1.2rem/1.15 var(--ui-font);
  letter-spacing: 0;
}

.entry-card:target {
  border-color: var(--accent-b);
  box-shadow: 0 0 0 3px rgba(12, 155, 138, 0.25), var(--shadow);
}

.section-title a {
  text-decoration: none;
}

.section-title a:hover {
  color: var(--accent-b);
}

.see-all {
  display: inline-block;
  margin-top: 18px;
  color: var(--accent-d);
  font: 700 0.95rem/1.2 var(--ui-font);
  text-decoration: none;
}

.see-all::after {
  content: " \2192";
}

.see-all:hover {
  color: var(--accent-b);
}

.toc-group-title {
  margin: 18px 0 8px;
  color: var(--muted);
  font: 700 0.78rem/1 var(--ui-font);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.toc-group-title:first-child {
  margin-top: 0;
}

.toc-link[aria-current="page"] {
  color: var(--text);
  background: rgba(20, 48, 49, 0.06);
}

.search-results {
  display: grid;
  gap: 22px;
}

.search-results[hidden],
.content[hidden] {
  display: none;
}

.page-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 28px;
  font: 600 0.95rem/1.3 var(--ui-font);
}

.page-nav a {
  padding: 14px 18px;
  border: 1px solid var(--surface-border);
  border-radius: 16px;
  background: var(--surface);
  text-decoration: none;
}

.page-nav a:hover {
  color: var(--accent-b);
}

.page-nav .next {
  margin-left: auto;
  text-align: right;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin-top: 44px;
  color: var(--muted);
  font: 500 0.9rem/1.6 var(--ui-font);
}

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

.prose p {
  margin: 14px 0 0;
  font-size: 1.05rem;
  line-height: 1.75;
}

.entry-meta {
  margin: 0;
  color: var(--muted);
  font: 600 0.85rem/1.4 var(--ui-font);
}

.entry-meta a {
  text-decoration: none;
}

.entry-meta a:hover {
  color: var(--accent-b);
}