/* Shared styles for the knowledge map's editorial pages. */
:root {
  color-scheme: light dark;
  --paper: #faf8f5;
  --ink: #2c2825;
  --secondary: #655b52;
  --rule: #e2d9cd;
  --wash: #f1ece4;
  --clay: #9a462c;
  --forest: #263a33;
  --display: "Noto Serif SC", "Songti SC", STSong, Georgia, serif;
  --body: Inter, system-ui, "PingFang SC", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #171714;
    --ink: #f2eade;
    --secondary: #c1b5a8;
    --rule: #464037;
    --wash: #24211c;
    --clay: #efa98c;
    --forest: #293e36;
  }
}

.portal-page {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.65 var(--body);
}

.portal-page *, .portal-page *::before, .portal-page *::after { box-sizing: border-box; }
.portal-page [hidden] { display: none !important; }
.portal-page a { color: inherit; text-decoration: none; }
.portal-page :focus-visible { outline: 2px solid var(--clay); outline-offset: 4px; }
.portal-width { width: min(1140px, calc(100% - 48px)); margin-inline: auto; }

.portal-nav { border-bottom: 1px solid var(--rule); }
.portal-nav .portal-width {
  min-height: 66px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.portal-brand { font: 700 19px/1.3 var(--display); white-space: nowrap; }
.portal-nav-links { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 23px; }
.portal-nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  color: var(--secondary);
  font-size: 14px;
  white-space: nowrap;
}
.portal-nav-links a:hover, .portal-nav-links a[aria-current] { color: var(--clay); }
.portal-nav-links a[aria-current] { text-decoration: underline; text-underline-offset: 6px; }

.portal-hero {
  padding-block: clamp(36px, 6vw, 78px);
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: clamp(24px, 5vw, 72px);
  align-items: center;
}
.portal-hero h1, .library-title {
  margin: 0;
  font: 700 clamp(38px, 4.8vw, 65px)/1.2 var(--display);
  letter-spacing: -.055em;
}
.portal-hero p, .library-intro { margin: 18px 0 0; color: var(--secondary); max-width: 34em; }
.portal-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; margin-top: 26px; }
.portal-page .portal-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 8px 17px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: #9a462c;
  color: #fff9f2;
  font: 600 14px/1.4 var(--body);
  cursor: pointer;
}
.portal-page .portal-button:hover { background: #78331f; }
.portal-page .portal-text-link { color: var(--clay); font-size: 14px; font-weight: 650; }
.portal-text-link:hover { text-decoration: underline; text-underline-offset: 4px; }

.portal-feature {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(120px, .85fr);
  align-items: center;
  gap: clamp(12px, 2vw, 26px);
  min-height: 318px;
  padding: clamp(18px, 3vw, 36px);
  border-radius: 12px;
  background: var(--forest);
}
.portal-page .portal-feature { color: #fcf5e9; }
.portal-feature:hover .feature-link { text-decoration: underline; text-underline-offset: 5px; }
.portal-feature:focus-visible { outline-offset: 5px; }
.portal-feature h2 {
  margin: 10px 0;
  font: 700 clamp(21px, 2.4vw, 32px)/1.36 var(--display);
  letter-spacing: -.03em;
}
.portal-feature p { margin: 0 0 15px; color: #e3dfd0; font-size: 14px; }
.feature-label { color: #f0c7a7; font-size: 13px; }
.feature-link { color: #fff3df; font-size: 14px; font-weight: 700; }

.book-art {
  --book: #aa5136;
  --book-text: #fff4e4;
  position: relative;
  isolation: isolate;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: min(100%, 138px);
  aspect-ratio: 3 / 4;
  padding: 14px 12px;
  border-radius: 2px 6px 6px 2px;
  background: linear-gradient(90deg, #0003 0%, transparent 7% 96%, #0002 100%), var(--book);
  color: var(--book-text);
  box-shadow: 3px 2px 0 -1px #fff6dc, 5px 4px 0 -1px #d7c7a7, 10px 14px 19px #24180938;
  overflow: hidden;
  text-align: left;
}
.book-art::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 24% -38% -30% 16%;
  border-radius: 50%;
  background: repeating-radial-gradient(ellipse at 58% 65%, transparent 0 11px, #fff5 12px, transparent 13px 18px);
}
.book-art--ledger { --book: #344e44; }
.book-art--ledger::before {
  inset: 35% 10% -8% 23%;
  border-radius: 0;
  transform: skewY(-14deg);
  background:
    repeating-linear-gradient(0deg, transparent 0 10px, #fff3 11px, transparent 12px),
    repeating-linear-gradient(90deg, transparent 0 15px, #fff3 16px, transparent 17px);
}
.book-art--prompt { --book: #eee1c7; --book-text: #463325; }
.book-art--prompt::before {
  inset: 48% -35% -28% 25%;
  border: 1px solid #a76a4f80;
  border-radius: 6px;
  transform: rotate(-19deg);
  background: repeating-linear-gradient(0deg, transparent 0 10px, #a76a4f55 11px, transparent 12px);
}
.book-art--coding { --book: #3d485e; }
.book-art--coding::before {
  inset: 40% -15% -10% 22%;
  border-radius: 0;
  transform: rotate(-25deg);
  background: repeating-linear-gradient(90deg, transparent 0 13px, #d6e4ff55 14px, transparent 15px 21px);
}
.book-art--portrait { --book: #794f61; }
.book-art--studio { --book: #bc8051; --book-text: #271909; }
.book-art--studio::before {
  inset: 44% -16% -10% 26%;
  border: 1px solid #472b194f;
  border-radius: 5px;
  transform: rotate(-14deg);
  background: repeating-linear-gradient(0deg, transparent 0 18px, #472b194f 19px, transparent 20px);
}
.book-art strong { font: 700 clamp(15px, 2vw, 23px)/1.3 var(--display); }
.book-art--coding strong { font-size: clamp(15px, 1.8vw, 21px); }
.book-art small { font: 600 10px/1.25 var(--body); }
.portal-feature .book-art {
  justify-self: center;
  width: min(100%, 184px);
  padding: clamp(10px, 2vw, 23px);
  transform: rotate(7deg);
}
.portal-feature .book-art strong { font-size: clamp(17px, 2.4vw, 29px); }

.portal-section { padding-block: 26px 38px; border-top: 1px solid var(--rule); }
.portal-section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}
.portal-section-heading h2 { margin: 0; font: 700 clamp(25px, 3vw, 35px)/1.25 var(--display); }
.portal-section-heading span { color: var(--secondary); font-size: 14px; }
.portal-section-heading a { white-space: nowrap; }

.paper-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.paper-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  border: 1px solid var(--rule);
  border-radius: 10px;
  overflow: hidden;
}
.paper-card:hover { border-color: var(--clay); }
.paper-card:hover .paper-action { text-decoration: underline; text-underline-offset: 4px; }
.book-stage {
  display: grid;
  place-items: center;
  padding: 18px;
  min-height: 210px;
  background: #f0e0d0;
  border-bottom: 1px solid var(--rule);
}
.book-stage--ledger { background: #e1e9de; }
.book-stage--prompt { background: #ece3d0; }
.book-stage--coding { background: #dee4ec; }
.book-stage--portrait { background: #eddee4; }
.book-stage--studio { background: #f1e1d2; }
.paper-copy { padding: 16px 18px; flex: 1; }
.paper-meta { color: var(--secondary); font-size: 13px; }
.paper-copy h2, .paper-copy h3 { margin: 5px 0 6px; font: 700 21px/1.38 var(--display); }
.paper-copy p { margin: 0; color: var(--secondary); font-size: 14px; }
.paper-card .paper-action { padding: 0 18px 16px; color: var(--clay); font-size: 14px; font-weight: 650; }

.portal-articles { padding-bottom: 8px; }
.portal-articles .portal-section-heading { flex-wrap: wrap; }
.portal-field {
  width: 100%;
  min-height: 43px;
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 8px 12px;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-size: 14px;
}
.portal-field::placeholder { color: var(--secondary); }
.portal-articles .portal-field { width: min(100%, 320px); }
.portal-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 20px;
  border-top: 1px solid var(--rule);
  padding-block: 23px;
  color: var(--secondary);
  font-size: 14px;
}
.portal-footer a:hover { text-decoration: underline; }

.library-header { padding-block: clamp(35px, 6vw, 68px) 32px; }
.library-toolbar { border-block: 1px solid var(--rule); padding: 14px 0; }
.library-fields { display: flex; gap: 10px; flex-wrap: wrap; }
.library-fields input { flex: 1 1 250px; }
.library-fields select { width: auto; }
.library-topics { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.library-topics button {
  min-height: 38px;
  padding: 5px 13px;
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
  font: 14px/1.4 var(--body);
  cursor: pointer;
}
.library-topics button:hover { border-color: var(--clay); }
.library-topics button[aria-pressed="true"] { background: var(--wash); border-color: var(--clay); color: var(--clay); }
.library-results { margin: 18px 0 12px; color: var(--secondary); font-size: 14px; }
.library-empty { margin: 0; padding: 30px; background: var(--wash); border-radius: 8px; }
.library-empty p { margin: 0 0 12px; }
.library-grid { margin-bottom: 55px; }

.whitepaper { padding-block: 32px 55px; }
.whitepaper-header { padding-bottom: 24px; margin-bottom: 28px; border-bottom: 1px solid var(--rule); }
.whitepaper-header h1 {
  max-width: 22em;
  margin: 12px 0;
  font: 700 clamp(30px, 5vw, 48px)/1.28 var(--display);
  letter-spacing: -.035em;
}
.whitepaper-layout {
  display: grid;
  grid-template-columns: minmax(220px, 280px) minmax(0, 760px);
  align-items: start;
  gap: clamp(24px, 5vw, 68px);
}
.whitepaper-toc {
  position: sticky;
  top: 22px;
  max-height: calc(100vh - 44px);
  overflow: auto;
  padding: 16px;
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: var(--wash);
}
.whitepaper-toc h2 { margin: 0 0 8px; font: 700 20px/1.4 var(--display); }
.whitepaper-toc h3 { margin: 16px 0 4px; font-size: 14px; }
.whitepaper-toc ul { list-style: none; padding: 0; margin: 0; }
.whitepaper-toc a {
  display: block;
  padding: 5px 0;
  color: var(--secondary);
  font-size: 14px;
  line-height: 1.5;
}
.whitepaper-toc a:hover, .whitepaper-toc a:focus-visible { color: var(--clay); text-decoration: underline; }
.whitepaper-body { min-width: 0; overflow-wrap: anywhere; }
.whitepaper-body h2 { margin: 32px 0 16px; font: 700 clamp(23px, 3vw, 31px)/1.35 var(--display); }
.whitepaper-body h3 { margin: 24px 0 10px; font: 700 21px/1.4 var(--display); }
.whitepaper-body [id] { scroll-margin-top: 22px; }
.whitepaper-body :target { color: var(--clay); }
.whitepaper-body > :first-child, .whitepaper-body > :first-child > :first-child { margin-top: 0; }
.whitepaper-stage { padding-block: 20px; border-block: 1px solid var(--rule); }
.whitepaper-stage h2, .whitepaper-stage p:last-child { margin: 0; }
.whitepaper-chapter { margin-block: 30px 44px; }
.whitepaper-body a { color: var(--clay); text-decoration: underline; text-underline-offset: 3px; }
.whitepaper-body blockquote {
  margin: 20px 0;
  padding: 6px 15px;
  border-left: 3px solid var(--clay);
  background: var(--wash);
}
.whitepaper-body ol, .whitepaper-body ul { padding-left: 1.6em; }
.whitepaper-body li + li { margin-top: 6px; }
.whitepaper-body img { display: block; max-width: 100%; height: auto; margin: 18px auto; }
.whitepaper-body pre {
  overflow-x: auto;
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 12px 14px;
  background: var(--wash);
  font-size: 14px;
}
.whitepaper-body :not(pre) > code { background: var(--wash); padding-inline: 3px; }
.whitepaper-body hr { border: 0; border-top: 1px solid var(--rule); margin-block: 28px; }
.whitepaper-body table { display: block; width: max-content; max-width: 100%; overflow-x: auto; border-collapse: collapse; }
.whitepaper-body th, .whitepaper-body td { border: 1px solid var(--rule); padding: 7px 10px; }
.whitepaper-body th { background: var(--wash); text-align: left; }

@media (max-width: 880px) {
  .portal-hero { grid-template-columns: 1fr 1fr; gap: 22px; }
  .portal-feature { min-height: 255px; }
  .portal-nav-links { gap: 4px 14px; }
}
@media (max-width: 720px) {
  .portal-width { width: calc(100% - 32px); }
  .portal-nav .portal-width { flex-direction: column; align-items: flex-start; gap: 4px; padding-top: 14px; padding-bottom: 7px; }
  .portal-hero { grid-template-columns: 1fr; gap: 25px; }
  .portal-feature { grid-template-columns: minmax(0, 1fr) minmax(105px, .65fr); min-height: 0; padding: 22px; }
  .portal-feature .book-art { max-width: 140px; }
  .paper-grid { grid-template-columns: 1fr; gap: 14px; }
  .book-stage { min-height: 178px; padding: 13px; }
  .book-stage .book-art { width: 110px; }
  .whitepaper-layout { grid-template-columns: minmax(0, 1fr); }
  .whitepaper-toc { position: static; max-height: 36vh; }
}