@font-face {
  font-family: "JetBrainsMono Nerd Font Mono";
  src: url("/assets/fonts/JetBrainsMonoNerdFontMono-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --paper: #ffffff;
  --ink: #171717;
  --soft: #5f5b62;
  --line: #dedbe1;
  --wash: #f7f7f5;
  --accent: #250930;
  --accent-2: #6f4b21;
  --max: 1120px;
  --pad: clamp(18px, 4vw, 56px);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family:
    "JetBrainsMono Nerd Font Mono", "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", monospace;
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: underline;
  text-decoration-style: dotted;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover,
a:focus-visible {
  color: var(--accent);
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

code {
  border: 1px solid var(--line);
  background: var(--wash);
  padding: 0.08rem 0.28rem;
  overflow-wrap: anywhere;
}

.site-header,
main,
.site-footer {
  width: min(var(--max), calc(100% - var(--pad)));
  margin: 0 auto;
}

.site-header {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  color: white;
  background: var(--accent);
  padding: 0 0.55rem;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0;
  text-decoration: none;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.55rem 1rem;
  color: var(--soft);
  font-size: 0.92rem;
}

.top-nav a {
  text-decoration: none;
}

main {
  padding: clamp(32px, 6vw, 80px) 0 0;
}

section {
  padding: clamp(38px, 7vw, 82px) 0;
  border-bottom: 1px solid var(--line);
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.72fr);
  align-items: center;
  gap: clamp(28px, 6vw, 70px);
}

.intro {
  min-height: calc(100svh - 76px);
  align-items: start;
  padding-top: clamp(24px, 4vw, 44px);
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent-2);
  font-size: 0.8rem;
  letter-spacing: 0;
  text-transform: lowercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 1rem;
  font-size: clamp(4.5rem, 18vw, 13rem);
  line-height: 0.78;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 1.1rem;
  font-size: clamp(1.7rem, 4vw, 3.8rem);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 0.7rem;
  font-size: 1rem;
  letter-spacing: 0;
}

.lead {
  max-width: 67ch;
  color: var(--soft);
  font-size: clamp(1rem, 1.6vw, 1.16rem);
}

.first-lesson {
  margin-top: clamp(24px, 5vw, 48px);
  border-left: 4px solid var(--accent);
  padding-left: clamp(16px, 3vw, 28px);
}

.first-lesson h2 {
  margin-bottom: 1rem;
  font-size: 1.1rem;
  line-height: 1.2;
}

.lesson-lines {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding-left: 1.2rem;
}

.lesson-lines li {
  padding-left: 0.25rem;
}

.lesson-lines code {
  margin-right: 0.5rem;
}

.lesson-lines span {
  color: var(--soft);
}

.seal-panel {
  margin: 0;
}

.seal-panel img {
  width: min(100%, 430px);
  margin-left: auto;
  border: 1px solid var(--line);
  background: var(--paper);
}

figcaption {
  margin-top: 0.85rem;
  color: var(--soft);
  font-size: 0.86rem;
}

.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.stats-strip div {
  min-width: 0;
  background: var(--paper);
  padding: clamp(14px, 2vw, 24px);
}

.stats-strip strong,
.stats-strip span {
  display: block;
}

.stats-strip strong {
  font-size: clamp(1.5rem, 3vw, 2.6rem);
  line-height: 1;
}

.stats-strip span {
  margin-top: 0.45rem;
  color: var(--soft);
  font-size: 0.83rem;
}

.rule-list {
  display: grid;
  gap: 1px;
  margin: 1.6rem 0 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.rule-list div {
  background: var(--paper);
  padding: 1rem;
}

.rule-list dt {
  font-weight: 700;
}

.rule-list dd {
  margin: 0.35rem 0 0;
  color: var(--soft);
}

.wide-figure {
  margin: 0;
}

.wide-figure img {
  border: 1px solid var(--line);
}

.pattern-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: 1.5rem;
  background: var(--line);
  border: 1px solid var(--line);
}

.pattern-grid article {
  min-width: 0;
  background: var(--paper);
  padding: clamp(16px, 2vw, 26px);
}

.pattern-grid p {
  color: var(--soft);
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 1.2rem;
}

.search-label {
  display: grid;
  gap: 0.45rem;
  width: min(100%, 340px);
  color: var(--soft);
  font-size: 0.78rem;
}

input[type="search"] {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--ink);
  border-radius: 0;
  padding: 0.65rem 0.8rem;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 1.15rem;
}

.filter-row button {
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 0;
  background: var(--paper);
  color: var(--ink);
  padding: 0.35rem 0.62rem;
  font: inherit;
  cursor: pointer;
}

.filter-row button[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent);
  color: white;
}

.results-list,
.word-results,
.lesson-list {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.idiom-row,
.word-row,
.lesson-row {
  min-width: 0;
  background: var(--paper);
  padding: clamp(14px, 2vw, 22px);
}

.idiom-row {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 1rem;
}

.word-row {
  display: grid;
  grid-template-columns: minmax(120px, 0.5fr) minmax(0, 1.5fr) minmax(120px, 0.5fr);
  gap: 1rem;
}

.row-label {
  color: var(--soft);
  font-size: 0.78rem;
}

.row-main {
  font-size: 1.05rem;
  font-weight: 700;
}

.row-note {
  color: var(--soft);
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border: 1px solid var(--line);
  padding: 0.08rem 0.42rem;
  color: var(--soft);
  font-size: 0.78rem;
}

.resource-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  margin-top: 1.5rem;
}

.resource-links a {
  border-bottom: 1px dotted currentColor;
  text-decoration: none;
}

.reference-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.reference-grid a {
  min-height: 68px;
  display: grid;
  align-content: center;
  gap: 0.28rem;
  background: var(--paper);
  padding: 1rem;
  border: 0;
}

.reference-grid strong,
.reference-grid span {
  display: block;
}

.reference-grid span {
  color: var(--soft);
  font-size: 0.78rem;
}

.lesson-row {
  display: grid;
  gap: 0.35rem;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0 42px;
  color: var(--soft);
  font-size: 0.82rem;
}

.doc-main {
  padding-top: clamp(28px, 5vw, 64px);
}

.doc-page {
  max-width: 92ch;
}

.doc-page h2 {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.doc-page h3,
.doc-page h4,
.doc-page h5,
.doc-page h6 {
  margin-top: 1.6rem;
}

.doc-page p,
.doc-page li,
.doc-page td {
  color: var(--soft);
}

.doc-page ul,
.doc-page ol {
  padding-left: 1.4rem;
}

.doc-page pre {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--wash);
  padding: 1rem;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  margin: 1.2rem 0;
  border: 1px solid var(--line);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  min-width: 9rem;
  padding: 0.7rem 0.8rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--ink);
  background: var(--wash);
  font-weight: 700;
}

::selection {
  background: rgba(37, 9, 48, 0.15);
}

@media (max-width: 900px) {
  .section-grid,
  .pattern-grid,
  .idiom-row,
  .word-row {
    grid-template-columns: 1fr;
  }

  .intro {
    min-height: auto;
  }

  .seal-panel img {
    width: min(100%, 360px);
    margin: 0;
  }
}

@media (max-width: 700px) {
  .site-header,
  .section-head,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .top-nav {
    justify-content: flex-start;
  }

  .stats-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .reference-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: clamp(4rem, 30vw, 7.5rem);
  }

  .lesson-lines code {
    display: inline-block;
    margin: 0 0 0.25rem;
  }
}