:root {
  color-scheme: light;
  --ink: #142019;
  --muted: #5d6a62;
  --paper: #f7f8f3;
  --line: #dce2da;
  --accent: #2156d9;
  --accent-soft: #e8efff;
  --surface: #ffffff;
  --body-font: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --display-font: var(--body-font);
  --label-font: var(--body-font);
  --card-radius: 22px;
  --panel-radius: 16px;
  --card-shadow: 0 18px 50px rgb(20 32 25 / 0.05);
  --page-background: radial-gradient(
      circle at 80% -10%,
      var(--accent-soft),
      transparent 36rem
    ),
    var(--paper);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--page-background);
  color: var(--ink);
  font: 17px/1.65 var(--body-font);
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

.site-header,
main,
footer {
  width: min(1120px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  border-bottom: 1px solid color-mix(in srgb, var(--line), transparent 15%);
}

.brand {
  font-family: var(--display-font);
  font-weight: 760;
  letter-spacing: -0.03em;
  text-decoration: none;
}

nav {
  display: flex;
  gap: 24px;
  color: var(--muted);
  font-size: 0.92rem;
}

nav a,
.footer-links a {
  text-decoration: none;
}

nav a:hover,
.footer-links a:hover {
  color: var(--accent);
}

.hero {
  max-width: 900px;
  padding: clamp(78px, 12vw, 150px) 0 clamp(64px, 9vw, 105px);
}

.kicker {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 0.77rem;
  font-weight: 760;
  font-family: var(--label-font);
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  font-family: var(--display-font);
}

h1 {
  max-width: 900px;
  margin-bottom: 26px;
  font-size: clamp(3rem, 8vw, 6.4rem);
  line-height: 0.98;
  letter-spacing: -0.065em;
}

.lede {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: clamp(1.15rem, 2.1vw, 1.45rem);
  overflow-wrap: anywhere;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  scroll-margin-top: 24px;
}

.card,
.article-card,
.upcoming,
.latest,
.about {
  border: 1px solid var(--line);
  border-radius: var(--card-radius);
  background: color-mix(in srgb, var(--surface), transparent 4%);
  box-shadow: var(--card-shadow);
}

.card {
  min-height: 250px;
  padding: 30px;
}

.card h2,
.upcoming h2,
.about h2 {
  margin-bottom: 14px;
  font-size: 1.35rem;
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.card p,
.about > p:not(.kicker),
.upcoming li {
  color: var(--muted);
}

.upcoming,
.latest,
.about {
  margin-top: 72px;
  padding: clamp(30px, 5vw, 54px);
}

.upcoming ul {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 40px;
  margin: 26px 0 0;
  padding-left: 1.1rem;
}

.about {
  scroll-margin-top: 24px;
}

.about > p {
  max-width: 780px;
}

.disclosure {
  margin: 28px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-size: 0.94rem;
}

.latest > h2,
.index-hero h1 {
  margin-bottom: 26px;
  font-size: clamp(2.2rem, 5vw, 4.5rem);
  line-height: 1;
  letter-spacing: -0.055em;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.article-card {
  padding: 28px;
}

.article-card h2,
.article-card h3 {
  margin: 0 0 14px;
  font-size: 1.28rem;
  line-height: 1.22;
  letter-spacing: -0.025em;
}

.article-card p {
  color: var(--muted);
}

.article-label,
.article-date,
.byline {
  color: var(--muted);
  font-size: 0.84rem;
}

.article-label {
  margin-bottom: 10px;
  color: var(--accent);
  font-weight: 700;
  font-family: var(--label-font);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.index-shell,
.article-shell {
  width: min(900px, calc(100% - 40px));
}

.index-hero,
.article-hero {
  padding: clamp(70px, 10vw, 120px) 0 56px;
}

.article-hero h1 {
  max-width: 880px;
  margin-bottom: 24px;
  font-size: clamp(2.7rem, 7vw, 5.5rem);
  line-height: 1;
}

.byline {
  margin: 28px 0 0;
}

.original-contribution,
.preview-banner {
  border: 1px solid color-mix(in srgb, var(--accent), transparent 65%);
  background: var(--accent-soft);
}

.original-contribution {
  margin-bottom: 52px;
  padding: 22px 24px;
  border-radius: var(--panel-radius);
}

.preview-banner {
  padding: 10px 20px;
  text-align: center;
  font-size: 0.88rem;
}

.article-body,
.sources,
.related,
.article-disclosure {
  max-width: 760px;
}

.article-body h2,
.sources h2,
.related h2,
.article-disclosure h2 {
  margin: 62px 0 20px;
  font-size: clamp(1.7rem, 4vw, 2.35rem);
  line-height: 1.12;
  letter-spacing: -0.035em;
}

.article-body h3 {
  margin: 38px 0 12px;
  font-size: 1.2rem;
  line-height: 1.25;
}

.article-body p,
.article-body li,
.sources li,
.related li,
.article-disclosure p {
  color: color-mix(in srgb, var(--ink), var(--muted) 25%);
}

.article-body li + li,
.sources li + li,
.related li + li {
  margin-top: 10px;
}

.article-body code {
  padding: 0.12em 0.32em;
  border-radius: 5px;
  background: color-mix(in srgb, var(--line), transparent 28%);
  font-size: 0.9em;
}

.article-body pre {
  max-width: 100%;
  overflow-x: auto;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: color-mix(in srgb, var(--line), transparent 55%);
  -webkit-overflow-scrolling: touch;
}

.article-body pre code {
  padding: 0;
  background: transparent;
}

.article-body blockquote {
  margin: 32px 0;
  padding-left: 22px;
  border-left: 3px solid var(--accent);
}

.article-body blockquote p {
  color: var(--muted);
}

.article-body table {
  display: block;
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  -webkit-overflow-scrolling: touch;
}

.article-body th,
.article-body td {
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.article-body th {
  background: color-mix(in srgb, var(--accent-soft), transparent 30%);
}

.sources,
.related,
.article-disclosure {
  margin-top: 58px;
  padding-top: 1px;
  border-top: 1px solid var(--line);
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 48px 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.footer-links {
  display: flex;
  gap: 22px;
}

.not-found {
  padding-top: 18vh;
}

.button {
  display: inline-block;
  margin-top: 12px;
  padding: 11px 18px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
}

/* AskVC — an editorial briefing with generous reading space. */
body[data-theme="briefing"] {
  --ink: #2d203d;
  --muted: #6d6078;
  --paper: #faf7fc;
  --line: #ded4e7;
  --display-font: Georgia, "Times New Roman", serif;
  --card-radius: 7px;
  --panel-radius: 7px;
  --card-shadow: none;
  --page-background: linear-gradient(
      90deg,
      transparent 0,
      transparent calc(100% - 10px),
      color-mix(in srgb, var(--accent-soft), transparent 35%) 100%
    ),
    var(--paper);
}

[data-theme="briefing"] .hero {
  margin: 70px 0 84px;
  padding: 18px 0 18px 38px;
  border-left: 6px solid var(--accent);
}

[data-theme="briefing"] .hero h1,
[data-theme="briefing"] .article-hero h1 {
  letter-spacing: -0.045em;
}

[data-theme="briefing"] .cards {
  grid-template-columns: 1.25fr 0.875fr 0.875fr;
}

[data-theme="briefing"] .card,
[data-theme="briefing"] .article-card,
[data-theme="briefing"] .latest,
[data-theme="briefing"] .upcoming,
[data-theme="briefing"] .about {
  border-top: 3px solid var(--accent);
}

[data-theme="briefing"] .article-body h2 {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

/* DealDigg — a compact worksheet and ledger. */
body[data-theme="ledger"] {
  --ink: #2f271d;
  --muted: #70614f;
  --paper: #f8f2e7;
  --line: #d8c7a9;
  --label-font: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --card-radius: 2px;
  --panel-radius: 2px;
  --card-shadow: 4px 4px 0 var(--line);
  --page-background: repeating-linear-gradient(
      0deg,
      transparent 0,
      transparent 31px,
      color-mix(in srgb, var(--line), transparent 68%) 32px
    ),
    var(--paper);
}

[data-theme="ledger"] .hero {
  max-width: none;
  margin: 58px 0 68px;
  padding: 48px 0;
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}

[data-theme="ledger"] .card {
  min-height: 220px;
}

[data-theme="ledger"] .article-grid {
  grid-template-columns: repeat(2, 1fr);
}

[data-theme="ledger"] .article-card,
[data-theme="ledger"] .original-contribution {
  border-left: 5px solid var(--accent);
}

[data-theme="ledger"] .article-body table {
  background: var(--surface);
}

/* HowToX — a numbered, practical operating manual. */
body[data-theme="manual"] {
  --ink: #122348;
  --muted: #53617c;
  --paper: #f6f8fc;
  --line: #cdd8ec;
  --card-radius: 12px;
  --panel-radius: 10px;
  --card-shadow: 0 10px 24px rgb(33 86 217 / 0.08);
  --page-background: linear-gradient(
      135deg,
      color-mix(in srgb, var(--accent-soft), transparent 15%),
      transparent 34rem
    ),
    var(--paper);
}

[data-theme="manual"] .cards {
  counter-reset: manual-step;
}

[data-theme="manual"] .card {
  counter-increment: manual-step;
  border-top: 5px solid var(--accent);
}

[data-theme="manual"] .card::before {
  content: "0" counter(manual-step);
  display: block;
  margin-bottom: 36px;
  color: var(--accent);
  font: 700 0.82rem/1 var(--label-font);
  letter-spacing: 0.12em;
}

[data-theme="manual"] .article-body h2 {
  padding-left: 18px;
  border-left: 5px solid var(--accent);
}

[data-theme="manual"] .original-contribution {
  border-width: 2px;
}

/* MulanDream — a warm field notebook for workflow observations. */
body[data-theme="notebook"] {
  --ink: #3b2731;
  --muted: #765e69;
  --paper: #fff9f5;
  --line: #ead3dc;
  --display-font: Georgia, "Times New Roman", serif;
  --card-radius: 5px 22px 5px 5px;
  --panel-radius: 5px 18px 5px 5px;
  --card-shadow: 0 12px 28px rgb(82 38 57 / 0.06);
  --page-background: repeating-linear-gradient(
      0deg,
      transparent 0,
      transparent 35px,
      color-mix(in srgb, var(--line), transparent 70%) 36px
    ),
    linear-gradient(90deg, transparent 54px, #f4c6d5 55px, transparent 56px),
    var(--paper);
}

[data-theme="notebook"] .site-header,
[data-theme="notebook"] main,
[data-theme="notebook"] footer {
  width: min(1060px, calc(100% - 72px));
}

[data-theme="notebook"] .cards {
  grid-template-columns: 1.1fr 0.9fr;
}

[data-theme="notebook"] .card {
  min-height: 220px;
  border-left: 5px solid var(--accent);
}

[data-theme="notebook"] .card:last-child {
  grid-column: 1 / -1;
  min-height: auto;
}

[data-theme="notebook"] .article-body blockquote {
  padding: 20px 24px;
  border-left-width: 5px;
  background: color-mix(in srgb, var(--surface), transparent 8%);
}

/* Odexing — a dark developer terminal without sacrificing article legibility. */
body[data-theme="terminal"] {
  color-scheme: dark;
  --ink: #e8effb;
  --muted: #9daec4;
  --paper: #090e17;
  --line: #29374b;
  --display-font: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --label-font: var(--display-font);
  --card-radius: 4px;
  --panel-radius: 4px;
  --card-shadow: 0 0 0 1px rgb(102 170 255 / 0.05);
  --page-background: linear-gradient(
      rgb(102 170 255 / 0.045) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgb(102 170 255 / 0.045) 1px, transparent 1px),
    var(--paper);
  background-size: 32px 32px;
}

[data-theme="terminal"] .site-header {
  border-color: var(--accent);
}

[data-theme="terminal"] .brand::before {
  content: "> ";
  color: var(--accent);
}

[data-theme="terminal"] .hero {
  max-width: none;
  margin: 58px 0 72px;
  padding: clamp(40px, 7vw, 76px);
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface), transparent 4%);
}

[data-theme="terminal"] .hero h1,
[data-theme="terminal"] .article-hero h1 {
  letter-spacing: -0.05em;
}

[data-theme="terminal"] .card,
[data-theme="terminal"] .article-card,
[data-theme="terminal"] .latest,
[data-theme="terminal"] .upcoming,
[data-theme="terminal"] .about {
  border-color: var(--line);
}

[data-theme="terminal"] .article-body pre {
  border-color: var(--accent);
  background: #05080e;
}

[data-theme="terminal"] .article-body h2 {
  color: var(--accent);
}

/* OK2Build — a blunt decision record with hard visual stops. */
body[data-theme="decision"] {
  --ink: #321c15;
  --muted: #725448;
  --paper: #fff8f2;
  --line: #e2c2b2;
  --card-radius: 0;
  --panel-radius: 0;
  --card-shadow: none;
  --page-background: linear-gradient(
      115deg,
      var(--accent-soft),
      transparent 26rem
    ),
    var(--paper);
}

[data-theme="decision"] .hero {
  max-width: none;
  padding-bottom: 70px;
  border-bottom: 8px solid var(--ink);
}

[data-theme="decision"] .hero .lede {
  padding-left: 22px;
  border-left: 5px solid var(--accent);
}

[data-theme="decision"] .cards {
  grid-template-columns: repeat(2, 1fr);
}

[data-theme="decision"] .card {
  min-height: 230px;
  border-top: 7px solid var(--accent);
}

[data-theme="decision"] .card:last-child {
  grid-column: 1 / -1;
  min-height: auto;
}

[data-theme="decision"] .original-contribution {
  border: 3px double var(--accent);
}

[data-theme="decision"] .article-body h2 {
  padding: 12px 16px;
  background: var(--accent-soft);
}

/* Pageka — a measured comparison lab with a visible grid. */
body[data-theme="lab"] {
  --ink: #15362d;
  --muted: #566f67;
  --paper: #f4faf7;
  --line: #bed8cf;
  --label-font: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --card-radius: 8px;
  --panel-radius: 8px;
  --card-shadow: none;
  --page-background: linear-gradient(
      rgb(8 127 91 / 0.05) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgb(8 127 91 / 0.05) 1px, transparent 1px),
    var(--paper);
  background-size: 24px 24px;
}

[data-theme="lab"] .hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 20px 60px;
  max-width: none;
}

[data-theme="lab"] .hero .kicker {
  grid-column: 1 / -1;
}

[data-theme="lab"] .hero .lede {
  align-self: end;
  padding: 22px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface), transparent 4%);
}

[data-theme="lab"] .card,
[data-theme="lab"] .article-card {
  border-top: 4px solid var(--accent);
}

[data-theme="lab"] .article-body table {
  border-top: 5px solid var(--accent);
  background: var(--surface);
}

/* ReactJSX — modular component surfaces and code-first detail. */
body[data-theme="component"] {
  --ink: #102c3e;
  --muted: #567183;
  --paper: #f4fbff;
  --line: #bcddec;
  --label-font: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --card-radius: 18px;
  --panel-radius: 14px;
  --card-shadow: 0 14px 35px rgb(3 105 161 / 0.08);
  --page-background: radial-gradient(
      circle at 50% 0,
      var(--accent-soft),
      transparent 38rem
    ),
    var(--paper);
}

[data-theme="component"] .hero {
  margin-inline: auto;
  text-align: center;
}

[data-theme="component"] .hero .lede {
  margin-inline: auto;
}

[data-theme="component"] .cards {
  align-items: start;
}

[data-theme="component"] .card,
[data-theme="component"] .article-card {
  border-style: dashed;
  border-width: 2px;
}

[data-theme="component"] .card:nth-child(2) {
  margin-top: 28px;
}

[data-theme="component"] .article-body pre {
  border-color: #164e63;
  background: #0f2b3a;
  color: #e5f7ff;
}

[data-theme="component"] .article-body h2 {
  color: var(--accent);
}

/* SmolUI — a compact interface specimen with explicit state boundaries. */
body[data-theme="specimen"] {
  --ink: #211827;
  --muted: #6b5d70;
  --paper: #fff8fa;
  --line: #e8cfd7;
  --label-font: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --card-radius: 14px;
  --panel-radius: 12px;
  --card-shadow: 0 12px 30px rgb(89 35 53 / 0.07);
  --page-background: radial-gradient(
      circle at 92% 8%,
      var(--accent-soft),
      transparent 28rem
    ),
    linear-gradient(rgb(225 29 72 / 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgb(225 29 72 / 0.035) 1px, transparent 1px),
    var(--paper);
  background-size: auto, 20px 20px, 20px 20px, auto;
}

[data-theme="specimen"] .hero {
  max-width: 820px;
  margin: 54px 0 70px;
  padding: clamp(38px, 7vw, 74px);
  border: 1px solid var(--line);
  border-radius: 24px;
  background: color-mix(in srgb, var(--surface), transparent 3%);
  box-shadow: inset 0 0 0 7px color-mix(in srgb, var(--accent-soft), transparent 40%);
}

[data-theme="specimen"] .hero::before {
  content: "STATE / READY";
  display: block;
  width: fit-content;
  margin-bottom: 34px;
  padding: 6px 9px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--accent);
  font: 700 0.68rem/1 var(--label-font);
  letter-spacing: 0.08em;
}

[data-theme="specimen"] .cards {
  align-items: start;
}

[data-theme="specimen"] .card,
[data-theme="specimen"] .article-card {
  border-bottom: 4px solid var(--accent);
}

[data-theme="specimen"] .card:nth-child(2) {
  margin-top: 24px;
}

[data-theme="specimen"] .article-body h2 {
  padding: 10px 14px;
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
}

@media (max-width: 760px) {
  body {
    font-size: 16px;
  }

  .cards,
  .article-grid,
  .upcoming ul {
    grid-template-columns: 1fr;
  }

  [data-theme="briefing"] .hero {
    margin: 42px 0 58px;
    padding: 10px 0 10px 22px;
  }

  [data-theme="briefing"] .cards,
  [data-theme="ledger"] .article-grid,
  [data-theme="notebook"] .cards,
  [data-theme="decision"] .cards {
    grid-template-columns: 1fr;
  }

  [data-theme="notebook"] .site-header,
  [data-theme="notebook"] main,
  [data-theme="notebook"] footer {
    width: min(1120px, calc(100% - 40px));
  }

  [data-theme="notebook"] .card:last-child,
  [data-theme="decision"] .card:last-child {
    grid-column: auto;
  }

  [data-theme="terminal"] .hero {
    margin: 38px 0 54px;
    padding: 28px 22px;
  }

  [data-theme="lab"] .hero {
    display: block;
  }

  [data-theme="lab"] .hero .lede {
    margin-top: 28px;
  }

  [data-theme="component"] .card:nth-child(2) {
    margin-top: 0;
  }

  [data-theme="specimen"] .hero {
    margin: 38px 0 54px;
    padding: 32px 24px;
  }

  [data-theme="specimen"] .card:nth-child(2) {
    margin-top: 0;
  }

  .card {
    min-height: auto;
  }

  footer {
    flex-direction: column;
  }

  nav {
    gap: 14px;
  }
}