/* ============================================================
   Renee Pang · Article / shared stylesheet
   "Quiet Dossier" — editorial paper-textured personal dossier.
   Warm paper, ink type, a single restrained navy accent (<5%).
   No gradients, no glow, no glass, no shadow-bounce.
   Old token names are aliased to the new palette so inline
   styles on index/topic/tool pages adapt automatically.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400..600;1,9..144,400..600&family=Inter:wght@400;500;600&family=Noto+Sans+SC:wght@300;400;500;600;700&family=Noto+Serif+SC:wght@500;600;700&display=swap');

:root {
  color-scheme: light;
  /* new tokens */
  --paper: #F6F4EF;
  --surface: #FBFAF7;
  --surface-2: #F0EDE6;
  --ink: #1B1A17;
  --muted: #6E6A62;
  --muted-2: #8A857C;
  --hairline: rgba(27, 26, 23, 0.14);
  --hairline-strong: rgba(27, 26, 23, 0.28);
  --navy: #1F3A5F;
  --navy-soft: rgba(31, 58, 95, 0.08);
  --amber: #8a5a14;

  /* legacy aliases (so existing inline styles adopt the new palette) */
  --bg: var(--paper);
  --bg-soft: var(--surface);
  --card: var(--surface);
  --card-strong: var(--surface-2);
  --line: var(--hairline);
  --line-strong: var(--hairline-strong);
  --text: var(--ink);
  --accent: var(--navy);
  --accent-2: var(--navy);
  --accent-soft: var(--navy-soft);
  --warn: var(--amber);
  --radius: 2px;
  --radius-sm: 2px;

  --maxw: 1200px;
  --readw: 66ch;
  --font-serif: "Fraunces", "Noto Serif SC", Georgia, "Songti SC", serif;
  --font-sans: "Inter", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-cn: "Noto Sans SC", "Inter", system-ui, sans-serif;
}

* { 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(--font-cn);
  font-size: 17px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
::selection { background: var(--navy); color: var(--paper); }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(24px, 7vw, 9vw); }

/* ---------- header (static, paper, hairline) ---------- */
.doc-header { background: var(--paper); border-bottom: 1px solid var(--hairline); }
.doc-header .inner { display: flex; align-items: center; justify-content: space-between; height: 68px; max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(24px, 7vw, 9vw); }
.brand { display: flex; align-items: center; gap: 11px; font-family: var(--font-serif); font-weight: 560; font-size: 19px; letter-spacing: -0.01em; color: var(--ink); }
.brand .mark { width: 30px; height: 30px; border-radius: 2px; display: grid; place-items: center; background: var(--navy); color: var(--paper); font-family: var(--font-sans); font-weight: 600; font-size: 12px; letter-spacing: .02em; }
.brand small { color: var(--muted); font-weight: 400; font-size: 12.5px; font-family: var(--font-sans); }
.doc-nav { display: flex; gap: 26px; font-family: var(--font-sans); font-size: 14px; color: var(--muted); align-items: center; }
.doc-nav a { position: relative; padding: 4px 0; }
.doc-nav a:hover { color: var(--ink); }
.doc-nav .cta { color: var(--navy); }
.doc-nav .cta::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--navy); }
@media (max-width: 680px){ .doc-nav { gap: 16px; } .doc-nav .hide-sm { display: none; } }
@media (max-width: 560px){ .brand small { display: none; } }

/* ---------- article head ---------- */
.article-head { padding: clamp(44px, 7vw, 80px) 0 6px; }
.breadcrumb { font-family: var(--font-sans); font-size: 13px; color: var(--muted-2); display: flex; gap: 8px; flex-wrap: wrap; }
.breadcrumb a:hover { color: var(--navy); }
.kicker { display: inline-block; margin: 22px 0 16px; font-family: var(--font-sans); font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--navy); }
.article-title { font-family: var(--font-serif); font-weight: 500; font-size: clamp(30px, 5.2vw, 50px); line-height: 1.08; letter-spacing: -0.015em; margin: 0 0 18px; max-width: 20ch; text-wrap: balance; color: var(--ink); }
.article-dek { font-size: clamp(17px, 2.2vw, 20px); color: var(--muted); max-width: var(--readw); margin: 0 0 24px; line-height: 1.6; }
.article-meta { display: flex; gap: 18px; flex-wrap: wrap; align-items: center; font-family: var(--font-sans); font-size: 13.5px; color: var(--muted-2); padding-top: 16px; border-top: 1px solid var(--hairline); }
.article-meta .by { display: flex; align-items: center; gap: 9px; color: var(--muted); }
.article-meta .by b { color: var(--ink); font-weight: 600; }
.avatar { width: 30px; height: 30px; border-radius: 50%; object-fit: cover; object-position: 50% 18%; border: 1px solid var(--hairline); }

/* ---------- figures: natural ratio, never stretched ---------- */
.hero-figure { margin: 30px 0 8px; }
.hero-figure img { width: 100%; height: auto; border: 1px solid var(--hairline); filter: saturate(0.97); }
figcaption { font-size: 13px; color: var(--muted-2); margin-top: 10px; font-family: var(--font-sans); }

/* ---------- layout: prose + sidebar TOC ---------- */
.article-body { display: grid; grid-template-columns: minmax(0, 1fr) 232px; gap: 60px; padding: 34px 0 10px; align-items: start; }
.prose { max-width: var(--readw); min-width: 0; }
.toc { position: sticky; top: 28px; font-family: var(--font-sans); font-size: 13.5px; }
.toc h4 { font-size: 11.5px; text-transform: uppercase; letter-spacing: .16em; color: var(--muted-2); margin: 0 0 12px; font-weight: 600; }
.toc ol { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--hairline); }
.toc li a { display: block; padding: 6px 0 6px 14px; color: var(--muted); border-left: 2px solid transparent; margin-left: -1px; }
.toc li a:hover, .toc li a.active { color: var(--ink); border-left-color: var(--navy); }
@media (max-width: 940px){ .article-body { grid-template-columns: 1fr; gap: 0; } .toc { display: none; } }

/* ---------- prose typography ---------- */
.prose h2 { font-family: var(--font-serif); font-weight: 500; font-size: clamp(22px, 3vw, 30px); line-height: 1.2; margin: 52px 0 16px; scroll-margin-top: 24px; letter-spacing: -0.01em; color: var(--ink); }
.prose h3 { font-family: var(--font-serif); font-weight: 560; font-size: clamp(18px, 2.3vw, 21px); margin: 32px 0 10px; color: var(--ink); scroll-margin-top: 24px; }
.prose p { margin: 0 0 18px; color: var(--ink); text-wrap: pretty; }
.prose strong { color: var(--ink); font-weight: 600; }
.prose a:not(.btn) { color: var(--navy); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; text-decoration-color: rgba(31,58,95,.4); }
.prose a:not(.btn):hover { text-decoration-color: var(--navy); }
.prose ul, .prose ol { margin: 0 0 20px; padding-left: 20px; color: var(--ink); }
.prose li { margin: 8px 0; }
.prose li::marker { color: var(--navy); }
.prose blockquote { margin: 26px 0; padding: 6px 0 6px 20px; border-left: 2px solid var(--navy); color: var(--muted); font-style: italic; font-size: 1.05em; }
.prose hr { border: none; border-top: 1px solid var(--hairline); margin: 40px 0; }
.prose code { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: .88em; background: var(--surface-2); padding: 2px 6px; border-radius: 2px; color: var(--navy); }
.prose pre { background: var(--surface-2); border: 1px solid var(--hairline); border-radius: 2px; padding: 16px 18px; overflow-x: auto; margin: 0 0 20px; }
.prose pre code { background: none; padding: 0; color: var(--ink); }

/* ---------- callouts (flat, hairline, ruled) ---------- */
.callout { display: grid; grid-template-columns: auto 1fr; gap: 14px; margin: 26px 0; padding: 16px 18px 16px 16px; background: var(--surface); border: 1px solid var(--hairline); border-left: 2px solid var(--navy); }
.callout .ico { width: 22px; height: 22px; display: grid; place-items: center; font-family: var(--font-sans); font-weight: 700; font-size: 14px; color: var(--navy); }
.callout p:last-child { margin-bottom: 0; }
.callout .ttl { font-family: var(--font-sans); font-weight: 600; margin-bottom: 4px; color: var(--ink); font-size: 14px; }
.callout.warn { border-left-color: var(--amber); }
.callout.warn .ico { color: var(--amber); }
.callout.tip { border-left-color: var(--muted-2); }
.callout.tip .ico { color: var(--muted-2); }
.callout.fact { background: var(--navy-soft); }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; margin: 0 0 24px; border: 1px solid var(--hairline); }
table { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 460px; }
thead th { background: var(--surface-2); text-align: left; font-family: var(--font-sans); font-weight: 600; color: var(--ink); padding: 12px 14px; border-bottom: 1px solid var(--hairline); white-space: nowrap; }
tbody td { padding: 11px 14px; border-bottom: 1px solid var(--hairline); color: var(--ink); vertical-align: top; }
tbody tr:last-child td { border-bottom: none; }

/* ---------- stat strip (numbers, no boxes) ---------- */
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px,1fr)); gap: 0; margin: 30px 0; border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.stat { padding: 18px 18px 18px 0; border-right: 1px solid var(--hairline); }
.stat:last-child { border-right: none; }
.stat .n { font-family: var(--font-serif); font-weight: 500; font-size: 30px; color: var(--navy); letter-spacing: -.02em; line-height: 1; }
.stat .l { font-size: 13px; color: var(--muted); margin-top: 6px; font-family: var(--font-sans); }

/* ---------- sources / disclaimer ---------- */
.sources { margin: 44px 0 0; padding-top: 18px; border-top: 1px solid var(--hairline); font-size: 14px; }
.sources h4 { font-family: var(--font-sans); font-size: 12px; text-transform: uppercase; letter-spacing: .14em; color: var(--muted-2); margin: 0 0 10px; font-weight: 600; }
.sources ol { margin: 0; padding-left: 20px; color: var(--muted); }
.sources li { margin: 5px 0; }
.sources a { color: var(--navy); text-decoration: underline; text-underline-offset: 2px; }
.disclaimer { margin-top: 24px; font-size: 13px; color: var(--muted-2); line-height: 1.7; }

/* ---------- in-article CTA (flat block) ---------- */
.article-cta { margin: 52px 0 10px; padding: 32px; background: var(--surface); border: 1px solid var(--hairline); border-top: 2px solid var(--navy); }
.article-cta h3 { font-family: var(--font-serif); font-weight: 500; font-size: 24px; margin: 0 0 8px; color: var(--ink); }
.article-cta p { color: var(--muted); margin: 0 0 20px; max-width: 60ch; }
.btn { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-sans); font-weight: 600; font-size: 14.5px; padding: 12px 22px; cursor: pointer; transition: background .15s, color .15s; border: 1px solid var(--navy); border-radius: 2px; }
.btn.primary { background: var(--navy); color: var(--paper); }
.btn.primary:hover { background: #16304f; }
.btn.ghost { background: transparent; color: var(--navy); }
.btn.ghost:hover { background: var(--navy-soft); }
.btn.link { padding: 0; border: none; background: none; color: var(--navy); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- related ---------- */
.related { padding: 48px 0; border-top: 1px solid var(--hairline); margin-top: 48px; }
.related h3 { font-family: var(--font-sans); font-size: 12px; text-transform: uppercase; letter-spacing: .16em; color: var(--muted-2); margin: 0 0 20px; font-weight: 600; }
.related-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 0; border-top: 1px solid var(--hairline); }
.rcard { padding: 20px 22px 22px 0; border-right: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.rcard:last-child { border-right: none; }
.rcard .t { font-family: var(--font-serif); font-weight: 560; font-size: 17px; margin: 6px 0; color: var(--ink); }
.rcard:hover .t { color: var(--navy); }
.rcard .d { font-size: 13.5px; color: var(--muted); font-family: var(--font-sans); }

/* ---------- footer ---------- */
.doc-footer { border-top: 1px solid var(--hairline); padding: 32px 0; color: var(--muted-2); font-size: 13.5px; font-family: var(--font-sans); margin-top: 20px; }
.doc-footer .inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(24px, 7vw, 9vw); }
.doc-footer a:hover { color: var(--navy); }

/* ---------- light, one-time reveal ---------- */
[data-reveal] { opacity: 0; transform: translateY(8px); transition: opacity .5s ease-out, transform .5s ease-out; }
[data-reveal].in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce){ [data-reveal]{opacity:1;transform:none;transition:none;} html{scroll-behavior:auto;} }

/* progress bar removed for restraint; keep class as no-op if referenced */
.progress { display: none; }

/* ---------- index / listing pages (guide & topics) ---------- */
.lead { padding: clamp(44px, 7vw, 80px) 0 8px; }
.lead h1 { font-family: var(--font-serif); font-weight: 500; font-size: clamp(30px, 5vw, 46px); line-height: 1.1; letter-spacing: -0.015em; margin: 16px 0 16px; color: var(--ink); }
.lead p { color: var(--muted); font-size: clamp(16px, 2vw, 19px); max-width: 62ch; margin: 0; line-height: 1.6; }
.idx-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 4vw, 48px) clamp(28px, 4vw, 44px); padding: clamp(28px,4vw,44px) 0 clamp(40px,6vw,72px); }
@media (max-width: 720px){ .idx-grid { grid-template-columns: 1fr; } }
.idx-card { display: block; }
.idx-thumb { overflow: hidden; border: 1px solid var(--hairline); }
.idx-thumb img { width: 100%; aspect-ratio: 2 / 1; height: auto; object-fit: cover; display: block; filter: saturate(0.97); transition: opacity .2s; }
.idx-card:hover .idx-thumb img { opacity: .9; }
.idx-cat { font-family: var(--font-sans); font-size: 11.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--navy); margin: 16px 0 8px; }
.idx-card h3 { font-family: var(--font-serif); font-weight: 560; font-size: 20px; line-height: 1.3; margin: 0 0 8px; color: var(--ink); }
.idx-card:hover h3 { color: var(--navy); }
.idx-card p { color: var(--muted); font-size: 14.5px; margin: 0 0 8px; }
.idx-card .more { font-family: var(--font-sans); font-size: 13px; color: var(--navy); }