/* legal.orga.day — a quiet, document-first site. */

:root {
  color-scheme: light dark;
  --paper: #f7f4ed;
  --paper-raised: #fbf9f4;
  --ink: #1b1a17;
  --ink-soft: #514d45;
  --muted: #7a7468;
  --rule: #ded8ca;
  --rule-strong: #c7bfae;
  --accent: #2d4a3a;
  --accent-ink: #f7f4ed;
  --accent-soft: #e6ece6;
  --code-bg: #1c1b18;
  --code-ink: #ece8de;
  --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, Georgia,
    "Songti SC", "Noto Serif CJK SC", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial,
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: "SFMono-Regular", "Cascadia Code", "Roboto Mono", Menlo, Consolas, monospace;
  --page: 1180px;
  --measure: 68ch;
  --gutter: 32px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #151513;
    --paper-raised: #1b1b18;
    --ink: #ece8de;
    --ink-soft: #c3bdb1;
    --muted: #948e82;
    --rule: #302f2a;
    --rule-strong: #45433b;
    --accent: #a7c6b2;
    --accent-ink: #151513;
    --accent-soft: #1d2a22;
    --code-bg: #0d0d0c;
    --code-ink: #ece8de;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.7;
  font-feature-settings: "kern", "liga", "onum";
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--ink);
  text-decoration-color: var(--rule-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent);
  text-decoration-color: currentColor;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

img,
svg {
  max-width: 100%;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -64px;
  z-index: 10;
  padding: 10px 16px;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.85rem;
  text-decoration: none;
}

.skip-link:focus {
  top: 16px;
  color: var(--paper);
}

.page {
  width: min(100% - (var(--gutter) * 2), var(--page));
  margin-inline: auto;
}

/* ── Header ─────────────────────────────────────────────────── */

.site-header {
  border-bottom: 1px solid var(--rule);
}

.site-header-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  width: min(100% - (var(--gutter) * 2), var(--page));
  min-height: 72px;
  margin-inline: auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.015em;
  text-decoration: none;
  white-space: nowrap;
}

.brand:hover {
  color: var(--ink);
}

.brand-mark {
  width: 20px;
  height: 20px;
  color: var(--accent);
  flex: none;
}

.brand-dot {
  color: var(--accent);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-left: auto;
}

.site-nav a {
  color: var(--muted);
  font-size: 0.83rem;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
}

.site-nav a[aria-current="page"] {
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-underline-offset: 0.35em;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-left: 20px;
  border-left: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}

.lang-switch a {
  color: var(--muted);
  text-decoration: none;
}

.lang-switch a:hover {
  color: var(--ink);
}

.lang-switch a[aria-current="true"] {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-underline-offset: 0.35em;
}

.lang-sep {
  color: var(--rule-strong);
}

/* ── Shared type ─────────────────────────────────────────────── */

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 22px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow::before {
  display: inline-block;
  width: 22px;
  height: 1px;
  background: var(--accent);
  content: "";
}

h1,
h2,
h3 {
  text-wrap: balance;
}

/* ── Home ───────────────────────────────────────────────────── */

.home-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.75fr);
  gap: 64px;
  align-items: end;
  padding: 96px 0 72px;
  border-bottom: 1px solid var(--rule);
}

.home-hero h1 {
  max-width: 12ch;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.8rem, 6.4vw, 5.4rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 1.02;
}

.home-hero .lede {
  max-width: 32ch;
  margin: 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 1.18rem;
  line-height: 1.55;
}

.product-index {
  padding: 64px 0 24px;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ink);
}

.section-head h2 {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.section-head span {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
}

.product-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 48px;
  padding: 32px 0 36px;
  border-bottom: 1px solid var(--rule);
}

.product-row h3 {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.product-row h3 a {
  text-decoration: none;
}

.product-row p {
  max-width: 52ch;
  margin: 0;
  color: var(--ink-soft);
}

.product-row .meta {
  margin-top: 16px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.product-row-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding-top: 8px;
}

.product-row-links a {
  font-size: 0.9rem;
}

.home-note {
  padding: 40px 0 80px;
}

.home-note p {
  max-width: 46ch;
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

/* ── Product ────────────────────────────────────────────────── */

.product-hero {
  padding: 80px 0 56px;
  border-bottom: 1px solid var(--rule);
}

.product-name {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 24px;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.product-name span {
  color: var(--muted);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
}

.product-hero h1 {
  max-width: 17ch;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.6rem, 5.6vw, 4.8rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 1.05;
}

.product-hero .lede {
  max-width: 58ch;
  margin: 28px 0 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  line-height: 1.6;
}

.facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 48px 0 0;
  border-top: 1px solid var(--rule);
}

.fact {
  padding: 18px 24px 0 0;
  border-right: 1px solid var(--rule);
}

.fact + .fact {
  padding-left: 24px;
}

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

.fact dt {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.fact dd {
  margin: 6px 0 0;
  font-family: var(--serif);
  font-size: 1.05rem;
  line-height: 1.35;
}

.product-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 80px;
  align-items: start;
  padding: 64px 0 80px;
}

.product-prose {
  max-width: var(--measure);
}

.product-aside {
  position: sticky;
  top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--ink);
}

.product-aside h2 {
  margin: 0 0 18px;
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.doc-link {
  display: block;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
  text-decoration: none;
}

.doc-link-title {
  display: block;
  font-family: var(--serif);
  font-size: 1.1rem;
  line-height: 1.3;
}

.doc-link-meta {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.78rem;
}

.doc-link:hover .doc-link-title {
  color: var(--accent);
}

.aside-note {
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.6;
}

/* ── Document ───────────────────────────────────────────────── */

.doc-header {
  padding: 64px 0 40px;
  border-bottom: 1px solid var(--rule);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 32px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
}

.breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

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

.breadcrumb .sep {
  color: var(--rule-strong);
}

.doc-header .eyebrow {
  margin-bottom: 18px;
}

.doc-header h1 {
  max-width: 20ch;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 1.05;
}

.doc-header .lede {
  max-width: 52ch;
  margin: 18px 0 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 1.16rem;
  line-height: 1.55;
}

.doc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  margin-top: 32px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
}

.doc-meta span {
  display: inline-flex;
  gap: 6px;
}

.doc-meta time {
  color: var(--ink-soft);
}

.doc-grid {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 72px;
  align-items: start;
  padding: 56px 0 80px;
}

.toc {
  position: sticky;
  top: 32px;
  max-height: calc(100vh - 64px);
  overflow-y: auto;
  padding-top: 16px;
  padding-right: 8px;
  border-top: 1px solid var(--ink);
  scrollbar-width: thin;
  scrollbar-color: var(--rule-strong) transparent;
  overscroll-behavior: contain;
}

.toc-title {
  margin: 0 0 14px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.toc-nav ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.toc-nav li {
  margin: 0;
}

.toc-nav a {
  display: block;
  padding: 5px 0;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.4;
  text-decoration: none;
}

.toc-nav a:hover {
  color: var(--ink);
}

.toc-sub {
  margin: 2px 0 6px 10px;
  padding-left: 10px;
  border-left: 1px solid var(--rule);
}

.toc-sub a {
  font-size: 0.75rem;
}

.toc-contact {
  margin: 24px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.75rem;
  line-height: 1.5;
}

.toc-inline {
  display: none;
  margin-bottom: 32px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--rule);
}

.toc-inline summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  list-style: none;
}

.toc-inline summary::-webkit-details-marker {
  display: none;
}

.toc-inline summary::after {
  content: "+";
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1;
}

.toc-inline[open] summary::after {
  content: "−";
}

.toc-inline .toc-nav {
  padding-bottom: 12px;
}

.doc-body {
  max-width: var(--measure);
}

.doc-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 0 64px;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.85rem;
}

.doc-footer a {
  color: var(--muted);
}

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

.doc-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

/* ── Prose ──────────────────────────────────────────────────── */

.prose {
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.78;
}

.prose > :first-child {
  margin-top: 0;
}

.prose h2 {
  margin: 3.4rem 0 1.1rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--rule);
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(1.5rem, 2.4vw, 1.9rem);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.25;
  scroll-margin-top: 2rem;
}

.prose > h2:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.prose h3 {
  margin: 2.2rem 0 0.7rem;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.4;
  scroll-margin-top: 2rem;
}

.prose p {
  margin: 0 0 1.15rem;
}

.prose strong {
  color: var(--ink);
  font-weight: 600;
}

.prose ul,
.prose ol {
  margin: 0 0 1.25rem;
  padding-left: 1.3rem;
}

.prose li {
  margin: 0.35rem 0;
}

.prose li::marker {
  color: var(--accent);
}

.prose a {
  color: var(--ink);
  text-decoration-color: var(--accent);
}

.prose a:hover {
  color: var(--accent);
}

.prose hr {
  margin: 2.5rem 0;
  border: 0;
  border-top: 1px solid var(--rule);
}

.prose blockquote {
  margin: 1.8rem 0;
  padding: 0 0 0 1.25rem;
  border-left: 2px solid var(--accent);
  color: var(--ink-soft);
}

.prose blockquote p:last-child {
  margin-bottom: 0;
}

.prose code {
  padding: 0.1em 0.35em;
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: var(--paper-raised);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.86em;
}

.prose pre {
  margin: 1.5rem 0;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  border-radius: 4px;
  background: var(--code-bg);
  color: var(--code-ink);
  font-size: 0.82rem;
  line-height: 1.6;
}

.prose pre code {
  padding: 0;
  border: 0;
  background: none;
  color: inherit;
  font-size: inherit;
}

.prose table {
  width: 100%;
  margin: 1.5rem 0;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.prose th,
.prose td {
  padding: 0.65rem 0.8rem;
  border-bottom: 1px solid var(--rule);
  text-align: left;
  vertical-align: top;
}

.prose th {
  border-bottom-color: var(--ink);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.prose td:first-child,
.prose th:first-child {
  padding-left: 0;
}

.prose td:last-child,
.prose th:last-child {
  padding-right: 0;
}

.table-wrap {
  overflow-x: auto;
}

/* ── Footer ─────────────────────────────────────────────────── */

.site-footer {
  border-top: 1px solid var(--rule);
}

.site-footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px 32px;
  width: min(100% - (var(--gutter) * 2), var(--page));
  margin-inline: auto;
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 0.78rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-note {
  color: var(--muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
}

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

/* ── 404 ────────────────────────────────────────────────────── */

.not-found {
  max-width: 720px;
  padding: 120px 0 160px;
}

.not-found h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.8rem, 7vw, 4.6rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 1.02;
}

.not-found .lede {
  max-width: 46ch;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 1.2rem;
  line-height: 1.55;
}

.not-found-zh {
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.95rem;
}

/* ── Responsive ─────────────────────────────────────────────── */

@media (max-width: 1000px) {
  .doc-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .doc-grid > .toc {
    display: none;
  }

  .toc-inline {
    display: block;
  }

  .doc-body {
    max-width: var(--measure);
  }
}

@media (max-width: 960px) {
  .home-hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
    padding: 64px 0 48px;
  }

  .home-hero .lede {
    max-width: 46ch;
  }

  .product-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .product-body {
    grid-template-columns: minmax(0, 1fr);
    gap: 48px;
  }

  .product-aside {
    position: static;
  }

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

  .fact:nth-child(2) {
    border-right: 0;
  }

  .fact:nth-child(3),
  .fact:nth-child(4) {
    padding-top: 18px;
    border-top: 1px solid var(--rule);
  }

  .fact:nth-child(3) {
    padding-left: 0;
  }
}

@media (max-width: 760px) {
  :root {
    --gutter: 20px;
  }

  body {
    font-size: 16px;
  }

  .site-header-inner {
    flex-wrap: wrap;
    gap: 14px 16px;
    padding: 14px 0;
  }

  .site-nav {
    order: 3;
    width: 100%;
    margin-left: 0;
    gap: 18px;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .site-nav::-webkit-scrollbar {
    display: none;
  }

  .lang-switch {
    margin-left: auto;
    padding-left: 0;
    border-left: 0;
  }

  .home-hero h1 {
    font-size: clamp(2.4rem, 12vw, 3.2rem);
  }

  .product-hero {
    padding: 56px 0 40px;
  }

  .product-hero h1 {
    font-size: clamp(2.3rem, 10vw, 3.2rem);
  }

  .facts {
    grid-template-columns: minmax(0, 1fr);
    margin-top: 36px;
  }

  .fact,
  .fact + .fact {
    padding: 14px 0;
    border-right: 0;
    border-top: 1px solid var(--rule);
  }

  .fact:first-child {
    border-top: 0;
  }

  .doc-header {
    padding: 40px 0 32px;
  }

  .breadcrumb {
    margin-bottom: 24px;
  }

  .doc-header h1 {
    font-size: clamp(2.1rem, 9vw, 2.9rem);
  }

  .doc-meta {
    gap: 6px 20px;
  }

  .doc-grid {
    padding: 32px 0 56px;
  }

  .doc-footer {
    padding-bottom: 48px;
  }

  .not-found {
    padding: 80px 0 120px;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media print {
  :root {
    --paper: #fff;
    --paper-raised: #fff;
    --ink: #000;
    --ink-soft: #222;
    --muted: #555;
    --rule: #ccc;
    --rule-strong: #999;
    --accent: #000;
    --code-bg: #f3f3f3;
    --code-ink: #000;
  }

  body {
    font-size: 11pt;
  }

  .site-header,
  .site-footer,
  .toc,
  .toc-inline,
  .doc-footer,
  .product-aside,
  .skip-link {
    display: none !important;
  }

  .page {
    width: 100%;
    max-width: none;
    padding: 0;
  }

  .doc-grid,
  .product-body {
    display: block;
    padding: 0;
  }

  .doc-body {
    max-width: none;
  }

  .prose h2 {
    break-after: avoid;
  }

  .prose table,
  .prose pre,
  .prose blockquote {
    break-inside: avoid;
  }

  a {
    color: #000;
    text-decoration: none;
  }

  a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 9pt;
  }
}