@font-face {
  font-family: "Tsanger";
  src: url("./assets/TsangerJinKai02-W04.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "Inter";
  src: url("./assets/Inter.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Inter";
  src: url("./assets/Inter-600.woff2") format("woff2");
  font-weight: 600 800;
  font-display: swap;
}

:root {
  --paper: #f4efe4;
  --paper-deep: #e9e0cf;
  --ink: #17243b;
  --muted: #657080;
  --accent: #ad5039;
  --accent-soft: #ead0c6;
  --blue: #28476b;
  --rule: rgba(23, 36, 59, 0.16);
  --white: #fffdf8;
  --body-copy-size: 22px;
  --serif: "Tsanger", "Noto Serif CJK SC", "Source Han Serif SC", "Songti SC", serif;
  --sans: "Inter", "Noto Sans CJK SC", "Source Han Sans SC", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 78px; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 0, rgba(173, 80, 57, 0.12), transparent 30rem),
    radial-gradient(circle at 95% 18%, rgba(40, 71, 107, 0.11), transparent 30rem),
    var(--paper);
  font-family: var(--sans);
  line-height: 1.75;
}
a { color: inherit; }
.skip-link { position: fixed; top: -100px; left: 1rem; z-index: 100; padding: .8rem 1rem; background: #fff; }
.skip-link:focus { top: 1rem; }

.topbar {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; justify-content: space-between;
  min-height: 66px; padding: 0 5vw;
  color: var(--white); background: rgba(23, 36, 59, .96); backdrop-filter: blur(14px);
}
.brand { font-family: var(--serif); font-size: 1.3rem; font-weight: 800; text-decoration: none; }
.brand span { margin-left: .5rem; color: rgba(255,255,255,.55); font-family: var(--sans); font-size: .72rem; font-weight: 600; }
.topbar nav { display: flex; gap: 1.35rem; }
.topbar nav a { color: rgba(255,255,255,.73); font-size: .8rem; text-decoration: none; }
.topbar nav a:hover, .topbar nav a:focus-visible { color: #fff; }

.hero {
  display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(280px, .65fr); gap: clamp(2rem, 7vw, 6rem);
  width: min(1180px, 90vw); margin: 0 auto; padding: clamp(4.5rem, 9vw, 8rem) 0 clamp(4rem, 8vw, 7rem);
}
.eyebrow, .section-head > p, .toc-panel > p {
  margin: 0 0 .9rem; color: var(--accent); font-size: .72rem; font-weight: 800; letter-spacing: .17em; text-transform: uppercase;
}
.hero h1 { margin: 0; font-family: var(--serif); font-size: clamp(3.1rem, 6.6vw, 6.5rem); line-height: 1.05; letter-spacing: -.035em; }
.hero h1 em { color: var(--accent); font-style: normal; }
.dek { max-width: 780px; margin: 2rem 0 0; color: #465268; font-family: var(--serif); font-size: var(--body-copy-size); line-height: 1.7; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2.2rem; }
.hero-actions a { padding: .8rem 1.15rem; border: 1px solid var(--ink); text-decoration: none; font-size: .86rem; font-weight: 700; }
.hero-actions .primary { color: var(--white); background: var(--ink); }
.hero-actions .secondary:hover { color: var(--white); background: var(--accent); border-color: var(--accent); }

.docket { align-self: end; border-top: 4px solid var(--accent); background: rgba(255,253,248,.72); box-shadow: 0 26px 70px rgba(23,36,59,.1); }
.docket > p { margin: 0; padding: 1.3rem 1.4rem .5rem; color: var(--accent); font-size: .68rem; font-weight: 800; letter-spacing: .2em; }
.docket dl { margin: 0; padding: 0 1.4rem 1.1rem; }
.docket dl div { padding: .7rem 0; border-bottom: 1px solid var(--rule); }
.docket dt { color: var(--muted); font-size: .68rem; }
.docket dd { margin: .2rem 0 0; font-family: var(--serif); font-size: 1rem; font-weight: 700; }
.status { display: flex; align-items: center; gap: .65rem; padding: 1rem 1.4rem; color: var(--white); background: var(--ink); font-size: .82rem; }
.status i { width: 9px; height: 9px; flex: 0 0 auto; border-radius: 50%; background: #7fc59b; box-shadow: 0 0 0 5px rgba(127,197,155,.12); }
.status small { color: rgba(255,255,255,.58); }

.thesis { padding: clamp(4rem, 8vw, 7rem) max(5vw, calc((100vw - 1080px)/2)); color: var(--white); background: var(--ink); }
.thesis > p { margin: 0 0 1rem; color: #d99983; font-size: .73rem; font-weight: 800; letter-spacing: .17em; }
.thesis h2 { max-width: 1000px; margin: 0; font-family: var(--serif); font-size: clamp(2.4rem, 5.4vw, 5rem); line-height: 1.18; }
.thesis blockquote { max-width: 850px; margin: 2.4rem 0 0; padding: 0 0 0 1.4rem; border-left: 4px solid var(--accent); color: rgba(255,255,255,.73); font-size: var(--body-copy-size); }

.case-map, .frictions, .downloads, .source-band, .practice { width: min(1120px, 90vw); margin: 0 auto; padding: clamp(4rem, 8vw, 7rem) 0; }
.section-head h2 { margin: 0; font-family: var(--serif); font-size: clamp(2.2rem, 4.4vw, 4rem); line-height: 1.16; }
.section-head > span { display: block; margin-top: .85rem; color: var(--muted); font-size: var(--body-copy-size); }
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 2.8rem; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.case-grid article { min-height: 300px; padding: 2rem; border-right: 1px solid var(--rule); }
.case-grid article:last-child { border-right: 0; }
.case-grid article.accent { color: var(--white); background: var(--blue); }
.case-grid span { color: var(--accent); font-size: .7rem; font-weight: 800; letter-spacing: .15em; }
.case-grid .accent span { color: #efb19e; }
.case-grid h3 { margin: .65rem 0 1.3rem; font-family: var(--serif); font-size: 2rem; }
.case-grid b { display: block; font-family: var(--serif); font-size: 1.35rem; }
.case-grid p { color: var(--muted); font-size: var(--body-copy-size); }
.case-grid .accent p { color: rgba(255,255,255,.68); }
.case-note { margin: 1rem 0 0; color: var(--muted); font-size: var(--body-copy-size); }

.frictions { border-top: 1px solid var(--rule); }
.frictions ol { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin: 2.8rem 0 0; padding: 1px; background: var(--rule); list-style: none; }
.frictions li { display: grid; grid-template-columns: 56px 1fr; gap: 1.1rem; min-height: 220px; padding: 1.8rem; background: var(--paper); }
.frictions i { color: var(--accent); font-family: var(--serif); font-size: 1.6rem; font-style: normal; }
.frictions h3 { margin: .2rem 0 .7rem; font-family: var(--serif); font-size: 1.5rem; }
.frictions p { margin: 0; color: var(--muted); font-size: var(--body-copy-size); }

.downloads { width: min(1180px, 94vw); padding: clamp(3rem, 6vw, 5rem); color: var(--white); background: var(--ink); }
.downloads .section-head > p { color: #e09b83; }
.downloads .section-head > span { color: rgba(255,255,255,.6); }
.file-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin-top: 2.5rem; background: rgba(255,255,255,.16); }
.file-card { display: flex; flex-direction: column; justify-content: space-between; min-height: 260px; padding: 1.8rem; background: #203049; }
.file-card span { color: #e7a38d; font-size: .7rem; font-weight: 800; letter-spacing: .16em; }
.file-card h3 { margin: .55rem 0 .6rem; font-family: var(--serif); font-size: 1.65rem; }
.file-card p { margin: 0; color: rgba(255,255,255,.62); font-size: var(--body-copy-size); }
.file-card nav { display: flex; gap: .5rem; margin-top: 1.6rem; }
.file-card nav a { min-width: 64px; padding: .55rem .7rem; border: 1px solid rgba(255,255,255,.25); text-align: center; text-decoration: none; font-size: .72rem; font-weight: 800; }
.file-card nav a:first-child { color: var(--ink); background: var(--white); }
.file-card nav a:hover { border-color: #e7a38d; }

.source-band { border-bottom: 1px solid var(--rule); }
.source-links { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 2.2rem; background: var(--rule); }
.source-links a { min-height: 135px; padding: 1.2rem; background: rgba(255,253,248,.6); text-decoration: none; }
.source-links b, .source-links span { display: block; }
.source-links b { font-family: var(--serif); font-size: 1.1rem; }
.source-links span { margin-top: .45rem; color: var(--muted); font-size: var(--body-copy-size); }
.source-band > p { color: var(--muted); font-size: var(--body-copy-size); }

.reading-layout { display: grid; grid-template-columns: minmax(190px, 260px) minmax(0, 820px); gap: clamp(2rem, 6vw, 5rem); width: min(1180px, 92vw); margin: 0 auto; padding: clamp(4rem, 8vw, 8rem) 0; }
.toc-panel { position: sticky; top: 95px; align-self: start; max-height: calc(100vh - 120px); overflow: auto; padding-right: 1rem; }
.toc-panel nav { display: grid; }
.toc-panel a { padding: .58rem 0; border-bottom: 1px solid var(--rule); color: var(--muted); font-size: .72rem; line-height: 1.45; text-decoration: none; }
.toc-panel a[aria-current] { color: var(--accent); font-weight: 800; }
.legal-copy { min-width: 0; }
.document-label { display: flex; justify-content: space-between; margin-bottom: 1.8rem; padding-bottom: .7rem; border-bottom: 2px solid var(--ink); color: var(--accent); font-size: .7rem; letter-spacing: .13em; }
.legal-copy > h1 { margin: 0 0 2.5rem; font-family: var(--serif); font-size: clamp(2.2rem, 4vw, 3.5rem); line-height: 1.2; }
.legal-copy h2 { margin: 3.8rem 0 1.2rem; padding-top: .8rem; border-top: 1px solid var(--ink); font-family: var(--serif); font-size: clamp(1.55rem, 2.6vw, 2rem); line-height: 1.4; }
.legal-copy h3 { margin: 2.3rem 0 .8rem; color: var(--accent); font-family: var(--serif); font-size: 1.35rem; }
.legal-copy p, .legal-copy li { font-family: var(--serif); font-size: var(--body-copy-size); line-height: 2; }
.legal-copy p { text-indent: 2em; }
.legal-copy > p:nth-of-type(-n+6), .legal-copy h2 + p { text-indent: 0; }
.legal-copy ol { padding-left: 1.5rem; }
.legal-copy hr { margin: 4rem 0 2rem; border: 0; border-top: 2px solid var(--ink); }

.practice { border-top: 1px solid var(--rule); }
.practice details { margin-top: 1rem; border: 1px solid var(--rule); background: rgba(255,253,248,.5); }
.practice summary { display: grid; grid-template-columns: 54px 1fr auto; align-items: center; gap: 1rem; padding: 1.15rem 1.3rem; cursor: pointer; list-style: none; }
.practice summary::-webkit-details-marker { display: none; }
.practice summary span { color: var(--accent); font-family: var(--serif); font-size: 1.25rem; }
.practice summary b { font-family: var(--serif); font-size: 1.25rem; }
.practice summary small { color: var(--muted); }
.practice-copy { padding: 1.8rem clamp(1.3rem, 4vw, 3rem) 2.8rem; border-top: 1px solid var(--rule); }
.practice-copy h2 { margin: 2rem 0 .8rem; font-family: var(--serif); }
.practice-copy h3 { margin: 1.8rem 0 .4rem; color: var(--accent); font-family: var(--serif); }
.practice-copy p, .practice-copy li { font-family: var(--serif); font-size: var(--body-copy-size); line-height: 1.9; }
.practice-copy blockquote { margin: 1rem 0; padding: 1rem 1.2rem; border-left: 4px solid var(--accent); background: var(--paper-deep); }

footer { display: flex; justify-content: space-between; gap: 2rem; padding: 2.5rem 5vw; color: rgba(255,255,255,.65); background: var(--ink); font-size: .76rem; }
footer p { max-width: 800px; margin: 0; font-size: var(--body-copy-size); }
footer a { align-self: flex-start; color: #fff; white-space: nowrap; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .docket { align-self: auto; }
  .case-grid, .source-links { grid-template-columns: repeat(2, 1fr); }
  .case-grid article:nth-child(2) { border-right: 0; }
  .case-grid article:last-child { grid-column: 1 / -1; }
  .reading-layout { grid-template-columns: 1fr; }
  .toc-panel { position: static; max-height: none; }
  .toc-panel nav { grid-template-columns: repeat(2, 1fr); gap: 0 1rem; }
}

@media (max-width: 620px) {
  .topbar { padding: 0 1.1rem; }
  .topbar nav a:not(:last-child) { display: none; }
  .hero { width: min(92vw, 560px); padding-top: 3.6rem; }
  .hero h1 { font-size: clamp(2.65rem, 13vw, 4.2rem); }
  .thesis { padding-inline: 6vw; }
  .case-map, .frictions, .source-band, .practice { width: 92vw; }
  .case-grid, .frictions ol, .file-grid, .source-links { grid-template-columns: 1fr; }
  .case-grid article { min-height: 0; border-right: 0; border-bottom: 1px solid var(--rule); }
  .case-grid article:last-child { grid-column: auto; border-bottom: 0; }
  .frictions li { min-height: 0; grid-template-columns: 40px 1fr; padding: 1.25rem; }
  .downloads { width: 100%; padding-inline: 5vw; }
  .file-card { min-height: 230px; }
  .reading-layout { width: 90vw; }
  .toc-panel nav { grid-template-columns: 1fr; }
  .legal-copy p, .legal-copy li { font-size: var(--body-copy-size); }
  .practice summary { grid-template-columns: 40px 1fr; }
  .practice summary small { grid-column: 2; }
  footer { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }