/* Japan Regulatory Radar, public reading site.
   Paper, ink and one deep teal accent for everything that links a claim to its source. */
:root {
  --paper: #f3f5f4;
  --paper-2: #e8ecea;
  --card: #f9fbfa;
  --ink: #1c1d20;
  --ink-2: #4b4f56;
  --ink-3: #686c73;
  --rule: #d4dbd8;
  --rule-2: #bcc6c2;
  --accent: #285f6b;
  --accent-wash: #dce9eb;
  --accent-line: #95bbc2;
  --shadow: 0 1px 0 rgba(28, 29, 32, 0.04), 0 24px 48px -28px rgba(28, 29, 32, 0.28);
  --serif: "Iowan Old Style", "Charter", "Sitka Text", Cambria, Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, "Hiragino Sans", "Yu Gothic UI", sans-serif;
  --mincho: "Hiragino Mincho ProN", "Yu Mincho", YuMincho, "Noto Serif JP", "BIZ UDPMincho", serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --ease: cubic-bezier(0.23, 1, 0.32, 1);
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #111516;
    --paper-2: #181d1e;
    --card: #1c2223;
    --ink: #ecebe6;
    --ink-2: #bebcb5;
    --ink-3: #9a988f;
    --rule: #2a3133;
    --rule-2: #40494b;
    --accent: #86c5d1;
    --accent-wash: #18292d;
    --accent-line: #2f5962;
    --shadow: 0 24px 48px -28px rgba(0, 0, 0, 0.7);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, p, ol, ul, blockquote, figure { margin: 0; }
ol, ul { padding: 0; list-style: none; }
a { color: inherit; text-decoration-color: var(--rule-2); text-underline-offset: 4px; }
a:hover { text-decoration-color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
::selection { background: var(--accent); color: var(--paper); }
:lang(ja) { font-family: var(--mincho); letter-spacing: 0.04em; line-break: strict; }
time { font-variant-numeric: tabular-nums; }

.masthead, main, .colophon {
  width: min(100% - 80px, 1200px);
  margin-inline: auto;
}

/* Masthead */
.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--rule);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  line-height: 1.2;
}
.brand img { border-radius: 7px; }
.brand-name { font-size: 15px; font-weight: 600; letter-spacing: -0.01em; }
.brand-ja { font-size: 13px; color: var(--ink-3); letter-spacing: 0.12em; }
.masthead nav { display: flex; gap: 28px; font-size: 14px; }
.masthead nav a { color: var(--ink-2); text-decoration: none; padding: 6px 0; border-bottom: 2px solid transparent; }
.masthead nav a:hover { color: var(--ink); }
.masthead nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }

/* Shared type */
.kicker {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.kicker::before {
  content: "";
  display: inline-block;
  margin-right: 10px;
  vertical-align: 1px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}
.kicker [lang="ja"] { margin-left: 6px; text-transform: none; font-weight: 400; letter-spacing: 0.12em; }
h1, h2 { font-family: var(--serif); font-weight: 400; letter-spacing: -0.015em; }
h1 { font-size: clamp(40px, 5.2vw, 70px); line-height: 1.04; text-wrap: balance; }
h1 em { font-style: italic; color: var(--accent); }
h2 { font-size: clamp(26px, 2.6vw, 32px); line-height: 1.15; }
h3 { font-size: 18px; line-height: 1.35; font-weight: 600; letter-spacing: -0.01em; }
.lede { font-size: 19px; line-height: 1.6; color: var(--ink-2); max-width: 36em; text-wrap: pretty; }
.fine { font-size: 13px; line-height: 1.55; color: var(--ink-3); }
.text-link { font-size: 15px; font-weight: 500; color: var(--ink); text-decoration-color: var(--accent-line); }
.button {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: transform 0.16s var(--ease), background-color 0.2s;
}
.button:hover { background: var(--accent); }
.button:active { transform: scale(0.97); }
.button.secondary { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1px var(--rule-2); }
.button.secondary:hover { box-shadow: inset 0 0 0 1px var(--accent); }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 8px;
}

/* Homepage */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 72px;
  align-items: center;
  padding: 80px 0 88px;
}
.hero h1 { margin: 22px 0 24px; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 28px; margin-top: 32px; }

.slip {
  position: relative;
  padding: 26px 28px 24px;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 6px;
  box-shadow: var(--shadow);
}
.slip::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 28px;
  width: 44px;
  height: 3px;
  background: var(--accent);
}
.slip-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.locator {
  font: 500 12px/1.4 var(--mono);
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink-3);
}
.slip-en { margin-top: 18px; font: 400 23px/1.35 var(--serif); letter-spacing: -0.01em; }
.slip-rule {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 22px 0 16px;
  font-size: 12px;
  color: var(--accent);
}
.slip-rule::after { content: ""; flex: 1; height: 1px; background: var(--rule); }
.slip-ja { font-size: 20px; line-height: 1.85; }
.slip-link {
  display: block;
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
  font-size: 14px;
  color: var(--ink-2);
  text-decoration: none;
}
.slip-link:hover { color: var(--ink); }

.latest, .standard, .sources { padding: 40px 0 56px; border-top: 1px solid var(--rule); }

.brief-rows { margin-bottom: 8px; }
.brief-row {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: 12px 48px;
  padding: 28px 0;
  border-top: 1px solid var(--rule);
}
.latest .brief-row:first-child, .page-archive .brief-row:first-child { border-top: 0; }
.row-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  font-size: 13px;
  color: var(--ink-3);
}
.status {
  display: inline-block;
  padding: 2px 10px;
  border: 1px solid var(--accent-line);
  border-radius: 999px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 500;
}
.row-body h2, .row-body h3 { font: 400 clamp(23px, 2.2vw, 28px)/1.2 var(--serif); letter-spacing: -0.01em; }
.row-body h2 a, .row-body h3 a { text-decoration: none; }
.row-body h2 a:hover, .row-body h3 a:hover { text-decoration: underline; text-decoration-color: var(--accent); }
.row-body > p { margin-top: 10px; max-width: 46em; color: var(--ink-2); }
.row-body > .row-count { margin-top: 12px; font: 500 12px/1.4 var(--mono); color: var(--ink-3); }

.standard ol { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; margin-top: 28px; }
.standard .step { display: block; font: 500 12px/1 var(--mono); color: var(--accent); margin-bottom: 14px; }
.standard h3 { font: 400 22px/1.25 var(--serif); letter-spacing: -0.01em; }
.standard p { margin-top: 10px; font-size: 15px; color: var(--ink-2); }

.sources ul { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; margin: 24px 0 20px; }
.sources a {
  display: flex;
  flex-direction: column;
  gap: 4px;
  height: 100%;
  padding: 20px 22px;
  border: 1px solid var(--rule);
  border-radius: 6px;
  text-decoration: none;
  transition: border-color 0.2s;
}
.sources a:hover { border-color: var(--accent-line); }
.source-ja { font: 400 22px/1.3 var(--serif); }
.source-ja:lang(ja) { font-family: var(--mincho); }
.source-en { font-size: 14px; font-weight: 500; }
.source-note { font-size: 13px; color: var(--ink-3); }
.empty-note { margin-top: 18px; max-width: 40em; color: var(--ink-2); }

/* Archive, methodology, retired */
.page-head { padding: 64px 0 40px; max-width: 900px; }
.page-head h1 { margin: 20px 0 18px; }
.page-head .text-link { display: inline-block; margin-top: 24px; }
.page-head .lede + p { margin-top: 14px; color: var(--ink-2); }
.page-archive .brief-rows { border-top: 1px solid var(--rule); margin-bottom: 72px; }
.corrections { padding-bottom: 80px; border-top: 1px solid var(--rule); max-width: 900px; }
.corrections > p { padding-top: 24px; color: var(--ink-2); }
.correction-log { list-style: none; margin: 0; padding: 0; }
.correction-log li { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 12px 48px; padding: 24px 0; border-bottom: 1px solid var(--rule); }
.correction-log li > p { margin: 0; }
.correction { grid-column: 1; margin: 0; font-size: 14px; line-height: 1.55; color: var(--ink-2); border-left: 2px solid var(--accent-line); padding-left: 12px; }
@media (max-width: 720px) { .correction-log li { grid-template-columns: 1fr; } }
.empty {
  margin: 0 0 80px;
  padding: 48px;
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: var(--card);
}
.empty h2 { margin: 16px 0 14px; }
.empty p:not(.kicker) { max-width: 40em; color: var(--ink-2); margin-bottom: 14px; }
.empty .button { margin-top: 10px; }

/* Brief page */
.brief-head { padding: 36px 0 36px; max-width: 900px; }
.back { display: inline-block; margin-bottom: 30px; font-size: 14px; color: var(--ink-2); text-decoration: none; }
.back:hover { color: var(--ink); }
.brief-head .row-meta { flex-direction: row; flex-wrap: wrap; align-items: center; gap: 10px 14px; }
.brief-title { margin: 18px 0 18px; font-size: clamp(34px, 4.2vw, 54px); line-height: 1.08; }
.brief-facts {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 6px 40px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
  font-size: 14px;
  color: var(--ink-2);
}
.brief-facts .fine { grid-column: 1; }
.source-link { grid-column: 2; grid-row: 1 / span 2; display: flex; flex-direction: column; gap: 4px; text-decoration: none; }
.source-label { font-size: 12px; font-weight: 600; letter-spacing: 0.09em; text-transform: uppercase; color: var(--accent); }
.source-title { font-size: 16px; line-height: 1.6; color: var(--ink); text-decoration: underline; text-decoration-color: var(--rule-2); text-underline-offset: 5px; }
.source-link:hover .source-title { text-decoration-color: var(--accent); }

.reading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  gap: 56px;
  align-items: start;
  padding-top: 32px;
  margin-bottom: 80px;
  border-top: 1px solid var(--rule);
}
.english section + section { margin-top: 34px; }
.english h2, .evidence-head h2 {
  font: 600 12px/1.4 var(--sans);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.english h2 { margin-bottom: 8px; }
.claim { transition: background-color 0.25s var(--ease), box-shadow 0.25s var(--ease); border-radius: 4px; }
.claims li {
  position: relative;
  margin: 0 -12px;
  padding: 11px 12px 11px 32px;
  font-size: 17px;
  line-height: 1.6;
}
.claims li::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 1.15em;
  width: 9px;
  height: 1px;
  background: var(--ink-3);
}
.claims li + li { border-top: 1px solid var(--rule); }
.english p.claim { margin: 0 -12px; padding: 11px 12px; font-size: 17px; line-height: 1.6; }
.claim[data-active] { background: var(--accent-wash); }
.claims li[data-active] + li, .claims li[data-active] { border-top-color: transparent; }
.lede.claim, .brief-title.claim { margin-inline: -10px; padding: 2px 10px; }

.mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 20px;
  margin-left: 7px;
  padding: 0 5px;
  border: 1px solid var(--accent-line);
  border-radius: 999px;
  color: var(--accent);
  font: 600 11px/1 var(--mono);
  letter-spacing: 0;
  text-decoration: none;
  vertical-align: 0.18em;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}
.brief-title .mark { vertical-align: 0.6em; }
.mark:hover, .claim[data-active] .mark { background: var(--accent); border-color: var(--accent); color: var(--paper); }

.evidence {
  position: sticky;
  top: 20px;
  max-height: calc(100vh - 40px);
  overflow: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: var(--rule-2) transparent;
  padding: 22px 24px 8px;
  background: var(--paper-2);
  border-radius: 8px;
}
.evidence-head { padding-bottom: 14px; }
.evidence-head h2 [lang="ja"] { margin-left: 6px; text-transform: none; font-weight: 400; color: var(--accent); }
.evidence-head p { margin-top: 6px; font-size: 13px; line-height: 1.5; color: var(--ink-3); }
.passage {
  margin: 0 -12px;
  padding: 16px 12px 16px;
  border-top: 1px solid var(--rule-2);
  border-radius: 4px;
  scroll-margin: 16px;
  transition: background-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.passage:focus { outline: none; }
.passage[data-active], .evidence:not([data-enhanced]) .passage:target { background: var(--card); box-shadow: inset 3px 0 0 var(--accent), var(--shadow); border-top-color: transparent; }
.passage[data-active] + .passage, .evidence:not([data-enhanced]) .passage:target + .passage { border-top-color: transparent; }
.passage-meta { display: flex; align-items: center; gap: 10px; }
.passage-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 20px;
  padding: 0 5px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  font: 600 11px/1 var(--mono);
  transition: background-color 0.2s;
}
.passage[data-active] .passage-number, .evidence:not([data-enhanced]) .passage:target .passage-number { background: var(--accent); }
.passage blockquote { margin-top: 10px; font-size: 17px; line-height: 1.95; color: var(--ink); overflow-wrap: anywhere; }
.supports { margin-top: 10px; font-size: 13px; color: var(--ink-3); }
.supports a { color: var(--ink-2); }

/* Methodology */
.method-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 64px; padding-bottom: 80px; }
.method-nav { position: sticky; top: 24px; align-self: start; padding-top: 22px; border-top: 1px solid var(--rule); }
.method-nav nav { display: grid; gap: 12px; margin-top: 16px; font-size: 14px; }
.method-nav a { color: var(--ink-2); text-decoration: none; }
.method-nav a:hover { color: var(--ink); }
.method-nav span { font: 500 12px var(--mono); color: var(--accent); margin-right: 6px; }
.prose { max-width: 680px; }
.prose section { padding: 22px 0 34px; border-top: 1px solid var(--rule); scroll-margin-top: 20px; }
.prose h2 { margin: 14px 0 16px; }
.prose p:not(.kicker) { font-size: 17px; line-height: 1.7; color: var(--ink-2); }
.prose p + p { margin-top: 14px; }
.prose a { color: var(--ink); text-decoration-color: var(--accent-line); }

/* Colophon */
.colophon {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) auto;
  gap: 24px;
  padding: 28px 0 44px;
  border-top: 1px solid var(--rule);
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-3);
}
.colophon-name { color: var(--ink-2); font-weight: 500; }
.colophon-name span { display: block; font-weight: 400; color: var(--ink-3); }
.colophon a { color: var(--ink-2); }

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; z-index: 5; padding: 10px 14px; background: var(--ink); color: var(--paper); }

@media (max-width: 1000px) {
  .hero { grid-template-columns: 1fr; gap: 48px; padding: 56px 0 64px; }
  .slip { max-width: 560px; }
  .reading { grid-template-columns: 1fr; gap: 40px; }
  .evidence { position: static; max-height: none; overflow: visible; }
  .brief-row { grid-template-columns: 190px minmax(0, 1fr); gap: 10px 32px; }
}
@media (max-width: 760px) {
  .masthead, main, .colophon { width: min(100% - 40px, 1200px); }
  .masthead { flex-wrap: wrap; gap: 12px 20px; padding: 18px 0; }
  .brand-ja { display: none; }
  .masthead nav { gap: 22px; }
  .hero { padding: 40px 0 52px; }
  .lede { font-size: 17px; }
  .slip { padding: 22px 20px 20px; }
  .slip::before { left: 20px; }
  .slip-en { font-size: 20px; }
  .slip-ja { font-size: 18px; }
  .brief-row { grid-template-columns: 1fr; padding: 24px 0; }
  .row-meta { flex-direction: row; flex-wrap: wrap; align-items: center; gap: 6px 14px; }
  .standard ol, .sources ul { grid-template-columns: 1fr; gap: 28px; }
  .sources ul { gap: 12px; }
  .page-head { padding: 44px 0 28px; }
  .brief-head { padding-top: 24px; }
  .brief-facts { grid-template-columns: 1fr; }
  .brief-facts .fine, .source-link { grid-column: 1; grid-row: auto; }
  .source-link { margin-top: 14px; }
  .evidence { padding: 20px 16px 4px; margin-inline: -8px; }
  .claims li, .english p.claim { font-size: 16px; }
  .passage blockquote { font-size: 16px; }
  .method-layout { grid-template-columns: 1fr; gap: 24px; }
  .method-nav { position: static; }
  .colophon { grid-template-columns: 1fr; gap: 10px; }
  .empty { padding: 32px 22px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}