@import url("https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300..600;1,9..144,300..500&family=Inter+Tight:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap");

:root {
  color-scheme: light;
  --paper: #ffffff;
  --paper-2: #f7f5f0;
  --paper-3: #e7e1d3;
  --paper-warm: #faf8f3;
  --ink: #151412;
  --ink-2: #3a3834;
  --ink-3: #6b6760;
  --rule: #e8e4d8;
  --rule-strong: #d7d1c0;
  --accent: #1f3a2e;
  --signal: #b54a2b;
  --signal-2: #7a5c1e;
  --ok: #2e5a3b;
  --mono-bg: #111110;
  --mono-bg-2: #181714;
  --mono-ink: #e7e3d7;
  --mono-dim: #8a8777;
  --mono-green: #a3c58a;
  --mono-amber: #d6b56b;
  --bg: var(--paper);
  --bg-2: var(--paper-2);
  --bg-3: var(--paper-3);
  --bg-4: var(--paper-warm);
  --fg: var(--ink);
  --fg-dim: var(--ink-2);
  --muted: var(--ink-3);
  --muted-2: #8a867c;
  --accent-a: var(--ok);
  --accent-b: var(--signal);
  --warn: var(--signal-2);
  --good: var(--ok);
  --sidebar-w: 280px;
  --topnav-h: 64px;
  --max: 1320px;
  --gutter: 32px;
  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  max-width: 100vw;
  overflow-x: hidden;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: "Inter Tight", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
}

::selection {
  background: var(--ink);
  color: var(--paper);
}

.announce {
  background: #faf8f3;
  border-bottom: 1px solid var(--rule);
  color: var(--ink-2);
  font-family: "JetBrains Mono", ui-monospace, Menlo, monospace;
  font-size: 12px;
  letter-spacing: 0.02em;
}

.announce-inner {
  align-items: center;
  display: flex;
  height: 36px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: var(--max);
  padding: 0 var(--gutter);
}

.announce-left,
.announce-right {
  align-items: center;
  display: flex;
  gap: 10px;
}

.announce-left .dot {
  background: var(--signal);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(181, 74, 43, 0.12);
  height: 6px;
  width: 6px;
}

.announce-right {
  color: var(--ink-3);
  gap: 16px;
  white-space: nowrap;
}

.mk-nav {
  backdrop-filter: saturate(140%) blur(10px);
  background: rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid var(--rule);
  position: sticky;
  top: 0;
  z-index: 50;
}

.mk-nav-inner {
  align-items: center;
  display: grid;
  gap: 40px;
  grid-template-columns: auto 1fr auto;
  height: var(--topnav-h);
  margin: 0 auto;
  max-width: var(--max);
  padding: 0 var(--gutter);
}

.mk-logo {
  align-items: center;
  color: var(--ink);
  display: inline-flex;
  font-family: "Fraunces", Georgia, serif;
  font-size: 20px;
  font-weight: 420;
  gap: 10px;
  letter-spacing: -0.02em;
}

.mk-logo-mark {
  display: inline-grid;
  height: 22px;
  place-items: center;
  width: 22px;
}

.mk-nav-links {
  display: flex;
  gap: 28px;
  justify-self: center;
}

.mk-nav-links a {
  color: var(--ink-2);
  font-size: 13.5px;
  letter-spacing: 0;
  padding: 6px 0;
  position: relative;
}

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

.mk-nav-links a.active::after {
  background: var(--ink);
  bottom: -21px;
  content: "";
  height: 1px;
  left: 0;
  position: absolute;
  right: 0;
}

.mk-nav-cta {
  align-items: center;
  display: flex;
  gap: 14px;
}

.mk-nav-cta .signin {
  border-right: 1px solid var(--rule);
  color: var(--ink-2);
  font-size: 13.5px;
  padding-right: 14px;
  white-space: nowrap;
}

.mk-nav-cta .signin:hover {
  color: var(--ink);
}

.shell {
  display: grid;
  gap: 56px;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  margin: 0 auto;
  max-width: var(--max);
  min-height: calc(100vh - 100px);
  overflow-x: hidden;
  padding: 44px var(--gutter) 96px;
}

.sidebar {
  align-self: start;
  background: transparent;
  border-right: 1px solid var(--rule);
  color: var(--ink);
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 128px);
  overflow: auto;
  position: sticky;
  top: 96px;
  width: var(--sidebar-w);
}

.sidebar-head {
  border-bottom: 1px solid var(--rule);
  padding: 0 22px 22px 0;
}

.sidebar-head h2 {
  font-family: "Fraunces", Georgia, serif;
  font-size: 28px;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 10px 0 0;
}

.nav-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 18px 0 24px;
}

.nav-section {
  padding-bottom: 14px;
}

.nav-section + .nav-section {
  border-top: 1px solid var(--rule);
  padding-top: 14px;
}

.nav-label {
  color: var(--muted);
  font-family: "JetBrains Mono", ui-monospace, Menlo, monospace;
  font-size: 9.5px;
  letter-spacing: 0.16em;
  padding: 6px 18px 6px 0;
  text-transform: uppercase;
}

.nav-label::before,
.eyebrow::before,
.card-num::before {
  color: var(--accent-b);
  content: "// ";
}

.nav-item {
  align-items: center;
  border-right: 1px solid transparent;
  color: var(--ink-2);
  display: flex;
  font-size: 13px;
  gap: 10px;
  padding: 7px 22px 7px 0;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
}

.nav-item:hover {
  background: transparent;
  border-right-color: var(--signal);
  color: var(--ink);
}

.main {
  min-width: 0;
}

.crumbs {
  align-items: center;
  color: var(--fg-dim);
  display: flex;
  font-size: 12.5px;
  gap: 8px;
  min-width: 0;
  margin-bottom: 26px;
}

.crumbs .sep {
  color: var(--muted-2);
}

.crumbs .current {
  color: var(--fg);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.page {
  width: 100%;
  min-width: 0;
  padding: 0;
}

.page-head {
  align-items: end;
  border-bottom: 1px solid var(--rule);
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1fr) auto;
  margin-bottom: 32px;
  padding-bottom: 30px;
}

.eyebrow {
  color: var(--muted);
  font-family: "JetBrains Mono", ui-monospace, Menlo, monospace;
  font-size: 10.5px;
  letter-spacing: 0.16em;
  margin: 0;
  text-transform: uppercase;
}

h1 {
  color: var(--fg);
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(42px, 5.4vw, 76px);
  font-weight: 380;
  letter-spacing: -0.035em;
  line-height: 0.98;
  margin: 10px 0 8px;
}

.description {
  color: var(--fg-dim);
  font-family: "Inter Tight", ui-sans-serif, system-ui, sans-serif;
  font-size: 20px;
  line-height: 1.45;
  margin: 0;
  max-width: 760px;
  overflow-wrap: break-word;
}

.page-actions {
  display: flex;
  gap: 8px;
}

.btn {
  align-items: center;
  background: var(--ink);
  border: 1px solid var(--ink);
  color: var(--paper);
  display: inline-flex;
  font-size: 12.5px;
  font-weight: 500;
  gap: 8px;
  padding: 8px 14px;
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper);
}

.btn.ghost {
  background: transparent;
  border-color: var(--rule-strong);
  color: var(--fg);
}

.btn.ghost:hover {
  border-color: var(--fg);
  color: var(--fg);
}

.kpi-row {
  border: 1px solid var(--rule);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 28px;
}

.kpi {
  border-right: 1px solid var(--rule);
  padding: 18px 20px;
}

.kpi:last-child {
  border-right: 0;
}

.kpi-label,
.kpi-delta,
.num {
  font-family: "JetBrains Mono", ui-monospace, Menlo, monospace;
}

.kpi-label,
.num {
  color: var(--muted);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.kpi-value {
  font-family: "Fraunces", Georgia, serif;
  font-size: 30px;
  font-weight: 420;
  letter-spacing: -0.02em;
  line-height: 1;
  margin: 10px 0 4px;
}

.kpi-delta {
  color: var(--fg-dim);
  font-size: 11px;
}

.feature-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card {
  background: var(--paper-warm);
  border: 1px solid var(--rule);
  display: block;
  min-height: 240px;
  padding: 24px;
}

.feature-card:hover {
  background: var(--paper-2);
  border-color: var(--rule-strong);
}

.feature-card h2 {
  font-family: "Fraunces", Georgia, serif;
  font-size: 24px;
  font-weight: 430;
  letter-spacing: -0.02em;
  margin: 62px 0 8px;
}

.feature-card p {
  color: var(--fg-dim);
  line-height: 1.55;
  margin: 0;
}

.doc {
  width: 100%;
  min-width: 0;
  max-width: min(860px, 100%);
}

.prose {
  color: var(--fg-dim);
  font-size: 17px;
  line-height: 1.7;
  max-width: 100%;
  overflow-wrap: break-word;
}

.prose h2 {
  border-top: 1px solid var(--rule);
  color: var(--fg);
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.05;
  margin: 42px 0 14px;
  padding-top: 22px;
}

.prose h3 {
  color: var(--fg);
  font-family: "Fraunces", Georgia, serif;
  font-size: 18px;
  font-weight: 460;
  letter-spacing: -0.015em;
  margin: 30px 0 8px;
}

.prose p,
.prose ul,
.prose ol {
  margin: 0 0 18px;
}

.prose li + li {
  margin-top: 6px;
}

.prose a {
  color: var(--accent);
  font-weight: 500;
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--accent) 45%, transparent);
  text-underline-offset: 3px;
}

.prose code {
  background: var(--paper-2);
  border: 1px solid var(--rule);
  color: var(--fg);
  font-family: "JetBrains Mono", ui-monospace, Menlo, monospace;
  font-size: 0.9em;
  padding: 2px 5px;
}

.archive-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.archive-card {
  background: var(--paper-warm);
  border: 1px solid var(--rule);
  padding: 18px;
}

.footer {
  background: #ffffff;
  border-top: 1px solid var(--rule);
  padding: 56px 0 40px;
}

.footer-inner {
  align-items: start;
  color: var(--ink-2);
  display: flex;
  justify-content: space-between;
  margin: 0 auto;
  max-width: var(--max);
  padding: 0 var(--gutter);
}

.footer-logo {
  margin-bottom: 16px;
}

.footer p {
  color: var(--ink-3);
  max-width: 360px;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--ink-2);
  font-size: 13.5px;
}

.footer-links a:hover {
  color: var(--ink);
}

.archive-card h2 {
  font-family: "Fraunces", Georgia, serif;
  font-size: 24px;
  font-weight: 430;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 8px 0;
}

.archive-card p,
.archive-head p {
  color: var(--fg-dim);
}

.archive-table {
  border-collapse: collapse;
  margin: 24px 0;
  width: 100%;
}

.archive-table th,
.archive-table td {
  border: 1px solid var(--rule);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

.archive-table th {
  color: var(--muted);
  font-family: "JetBrains Mono", ui-monospace, Menlo, monospace;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.source-meta {
  border: 1px solid var(--rule);
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  font-family: "JetBrains Mono", ui-monospace, Menlo, monospace;
  font-size: 11px;
  gap: 10px;
  margin-bottom: 28px;
  padding: 10px 12px;
}

.source-meta span::before {
  color: var(--signal);
  content: "// ";
}

@media (max-width: 980px) {
  .shell {
    gap: 32px;
    grid-template-columns: minmax(0, 1fr);
    padding-top: 32px;
  }

  .sidebar {
    border-bottom: 1px solid var(--rule);
    border-right: 0;
    height: auto;
    position: static;
    width: 100%;
  }

  .sidebar-head {
    padding-right: 0;
  }

  .nav-scroll {
    display: grid;
    gap: 0;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-height: 360px;
  }

  .sidebar-footer,
  .search,
  .toplink {
    display: none;
  }

  .page-head,
  .kpi-row,
  .feature-grid,
  .archive-grid {
    grid-template-columns: 1fr;
  }

  .kpi {
    border-bottom: 1px solid var(--rule);
    border-right: 0;
  }

  .kpi:last-child {
    border-bottom: 0;
  }
}

@media (max-width: 640px) {
  :root {
    --gutter: 20px;
  }

  .announce-right,
  .mk-nav-links,
  .mk-nav-cta .signin {
    display: none;
  }

  .mk-nav-inner {
    gap: 18px;
    grid-template-columns: auto 1fr;
  }

  .mk-nav-cta {
    justify-self: end;
  }

  .mk-nav-cta .btn {
    font-size: 12px;
    padding: 8px 10px;
  }

  .nav-scroll {
    grid-template-columns: 1fr;
  }

  .page {
    max-width: 100vw;
    overflow-x: hidden;
  }

  .crumbs {
    overflow: hidden;
  }

  .description {
    font-size: 18px;
    max-width: 32ch;
    width: 100%;
  }

  .doc {
    max-width: calc(100vw - 36px);
  }

  .prose {
    font-size: 16px;
    max-width: 34ch;
    width: 100%;
  }

  .prose p,
  .prose li {
    max-width: 34ch;
    overflow-wrap: anywhere;
  }

  h1 {
    font-size: 40px;
  }

  .footer-inner,
  .footer-links {
    flex-direction: column;
  }

  .footer-links {
    gap: 10px;
    margin-top: 28px;
  }
}