/* ORGANIQ design system v2 — influto / tech */
@font-face {
  font-family: "Hanken Grotesk";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url(../fonts/hanken-grotesk-normal-latin.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Hanken Grotesk";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url(../fonts/hanken-grotesk-normal-latin-ext.woff2) format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Hanken Grotesk";
  font-style: italic;
  font-weight: 100 900;
  font-display: swap;
  src: url(../fonts/hanken-grotesk-italic-latin.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Hanken Grotesk";
  font-style: italic;
  font-weight: 100 900;
  font-display: swap;
  src: url(../fonts/hanken-grotesk-italic-latin-ext.woff2) format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Instrument Serif";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url(../fonts/instrument-serif-normal-latin.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Instrument Serif";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url(../fonts/instrument-serif-normal-latin-ext.woff2) format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Instrument Serif";
  font-style: italic;
  font-weight: 100 900;
  font-display: swap;
  src: url(../fonts/instrument-serif-italic-latin.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Instrument Serif";
  font-style: italic;
  font-weight: 100 900;
  font-display: swap;
  src: url(../fonts/instrument-serif-italic-latin-ext.woff2) format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
  --primary: #65a30d;
  --accent: #c026d3;
  --bg: #fdfdfc;
  --bg-soft: #f5f5f2;
  --ink: #1a1c20;
  --ink-soft: #52565e;
  --ink-faint: #9a9ea6;
  --line: color-mix(in srgb, var(--ink) 11%, transparent);
  --line-strong: color-mix(in srgb, var(--ink) 22%, transparent);
  --card: #ffffff;
  --code-bg: #f2f2ef;
  --img-filter: none;
  --on-primary: #ffffff;
  --radius: 12px;
  --content: 44rem;
  --wide: 72rem;
  --font-display: "Hanken Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Hanken Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-quote: "Instrument Serif", Georgia, serif;
  --font-ui: "Hanken Grotesk", ui-sans-serif, system-ui, sans-serif;
  --display-settings: normal;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #101014; --bg-soft: #17171d; --ink: #e5e6ea; --ink-soft: #a4a8b1;
    --ink-faint: #676c76; --card: #16161c; --code-bg: #1d1d25;
    --primary: color-mix(in srgb, #65a30d 78%, #d8dce4);
    --accent: color-mix(in srgb, #c026d3 78%, #d8dce4);
    --img-filter: brightness(.92);
    --on-primary: #0d0e11;
  }
}
:root[data-theme="dark"] {
  --bg: #101014; --bg-soft: #17171d; --ink: #e5e6ea; --ink-soft: #a4a8b1;
  --ink-faint: #676c76; --card: #16161c; --code-bg: #1d1d25;
  --primary: color-mix(in srgb, #65a30d 78%, #d8dce4);
  --accent: color-mix(in srgb, #c026d3 78%, #d8dce4);
  --img-filter: brightness(.92);
  --on-primary: #0d0e11;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 5rem; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--font-body);
  font-size: clamp(1.0625rem, 1rem + .35vw, 1.125rem);
  line-height: 1.62;
  text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 3px; }
img { max-width: 100%; height: auto; border-radius: var(--radius); display: block;
  filter: var(--img-filter); }

/* reading progress — CSS-only scroll timeline */
@media (prefers-reduced-motion: no-preference) {
  .progress {
    position: fixed; top: 0; left: 0; height: 2px; width: 100%;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform-origin: 0 50%; transform: scaleX(0);
    animation: oq-grow linear both; animation-timeline: scroll(root);
    z-index: 90;
  }
  @keyframes oq-grow { from { transform: scaleX(0); } to { transform: scaleX(1); } }
}

/* layout */
.wrap { max-width: var(--content); margin: 0 auto; padding: 0 1.25rem; }
.wrap-wide { max-width: var(--wide); margin: 0 auto; padding: 0 1.25rem; }

/* header */
.site-head {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  position: sticky; top: 0; z-index: 50;
}
.site-head .inner {
  max-width: var(--wide); margin: 0 auto; padding: .85rem 1.25rem;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  flex-wrap: nowrap;
}
.logo { font-family: var(--font-display); font-variation-settings: var(--display-settings);
  font-weight: 640; font-size: 1.2rem; color: var(--ink); letter-spacing: -.015em;
  flex: none; white-space: nowrap; }
.logo b { color: var(--primary); font-weight: 640; }
.nav { display: flex; align-items: center; gap: 1.4rem; font-family: var(--font-ui);
  min-width: 0; }
.nav a { color: var(--ink-soft); font-size: .92rem; font-weight: 500;
  white-space: nowrap; }
.nav a.cta {
  color: var(--on-primary); background: var(--primary); padding: .48rem 1rem;
  border-radius: 999px; font-weight: 600;
  flex: 0 1 auto; min-width: 0; max-width: 46vw;
  overflow: hidden; text-overflow: ellipsis;
}
.nav a.cta:hover { text-decoration: none; filter: brightness(1.07); }
@media (max-width: 40rem) {
  .site-head .inner { padding: .7rem .9rem; gap: .55rem; }
  .nav { gap: .5rem; flex: 1 1 auto; justify-content: flex-end; }
  .nav > a:not(.cta) { display: none; }  /* reader is already on the blog */
  .nav a.cta { padding: .42rem .85rem; font-size: .85rem; }
  .logo { font-size: 1.08rem; flex: 0 1 auto; min-width: 3.5rem;
    overflow: hidden; text-overflow: ellipsis; }
  .theme-toggle, .lang-menu { flex: none; }
}

/* ------------------------------------------------ article header ---------- */
.col-main { min-width: 0; }
.col-main .post-head, .col-main .post-body {
  max-width: var(--content); margin-left: auto; margin-right: auto;
}
.post-head { padding: 3.2rem 0 0; }
.kicker {
  display: inline-block; font-family: var(--font-ui); font-size: .78rem;
  font-weight: 650; letter-spacing: .1em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 1rem;
}
h1 {
  font-family: var(--font-display); font-variation-settings: var(--display-settings);
  font-size: clamp(2.3rem, 1.6rem + 2.8vw, 3.5rem);
  line-height: 1.08; letter-spacing: -.025em; margin: 0 0 1rem;
  font-weight: 620; text-wrap: balance;
}
.lede {
  font-size: clamp(1.2rem, 1.1rem + .4vw, 1.35rem); color: var(--ink-soft);
  line-height: 1.5; margin: 0 0 1.8rem; text-wrap: pretty;
}
.byline {
  display: flex; align-items: center; gap: .85rem; padding: 1rem 0;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  font-family: var(--font-ui); font-size: .875rem; color: var(--ink-soft);
  flex-wrap: wrap;
}
.byline .avatar {
  width: 38px; height: 38px; border-radius: 50%; flex: none;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: var(--on-primary); display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: .95rem; font-family: var(--font-ui);
}
.byline .who b { color: var(--ink); display: block; font-size: .95rem; }
.byline .when { margin-left: auto; text-align: right; color: var(--ink-faint);
  font-variant-numeric: tabular-nums; line-height: 1.5; }
.hero-img { margin: 2rem 0 0; }
@media (min-width: 60rem) {
  .hero-img { margin-left: -4rem; margin-right: -4rem; }
}
.hero-img img { aspect-ratio: 16/9; object-fit: cover; width: 100%; }

/* language pills */
.lang-row { display: flex; gap: .45rem; flex-wrap: wrap; margin: 1.1rem 0 0;
  font-family: var(--font-ui); }
.lang-row a { font-size: .78rem; border: 1px solid var(--line-strong);
  border-radius: 999px; padding: .18rem .7rem; color: var(--ink-soft); }
.lang-row a.active { border-color: var(--primary); color: var(--primary); font-weight: 600; }

/* ------------------------------------------------ article body ------------ */
.article-shell { max-width: var(--wide); margin: 0 auto; padding: 0 1.25rem; }
.article-cols { display: block; }
@media (min-width: 75rem) {
  .article-cols { display: grid; grid-template-columns: minmax(0, 1fr) 15rem;
    gap: 4.5rem; align-items: start; }
}
.post-body { padding: 1.4rem 0 2rem; min-width: 0; }

.post-body h2 {
  font-family: var(--font-display); font-variation-settings: var(--display-settings);
  font-size: 1.7rem; letter-spacing: -.018em; line-height: 1.22;
  margin: 2.6rem 0 .9rem; font-weight: 600; text-wrap: balance; position: relative;
}
.post-body h3 { font-family: var(--font-display);
  font-variation-settings: var(--display-settings);
  font-size: 1.28rem; margin: 2rem 0 .6rem; font-weight: 600; }
.anchor-link { position: absolute; left: -1.4rem; top: 0; opacity: 0;
  color: var(--ink-faint); font-weight: 400; transition: opacity .15s; }
.post-body h2:hover .anchor-link, .anchor-link:focus-visible { opacity: 1; }
.post-body p { margin: 0 0 1.1rem; }
.post-body ul, .post-body ol { padding-left: 1.35rem; margin: 0 0 1.1rem; }
.post-body li { margin: .3rem 0; }
.post-body li::marker { color: var(--accent); }
.post-body strong { color: var(--ink); }
.post-body code { background: var(--code-bg); padding: .12em .4em; border-radius: 6px;
  font-size: .88em; font-family: ui-monospace, "JetBrains Mono", "Cascadia Code", Menlo, monospace; }
.post-body pre { background: var(--code-bg); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1rem 1.2rem; overflow-x: auto;
  line-height: 1.65; margin: 1.4rem 0; }
.post-body pre code { background: none; padding: 0; }
.post-body figure { margin: 1.8rem 0; }
.post-body figcaption { font-family: var(--font-ui); font-size: .82rem;
  color: var(--ink-faint); margin-top: .55rem; text-align: center; }
.post-body hr { border: none; border-top: 1px solid var(--line); margin: 2.4rem 0; }

/* takeaways */
.takeaways {
  background: color-mix(in srgb, var(--primary) 6%, var(--bg));
  border: 1px solid color-mix(in srgb, var(--primary) 22%, transparent);
  border-radius: var(--radius); padding: 1.3rem 1.5rem; margin: 2rem 0;
}
.takeaways h2 { margin: 0 0 .7rem !important; font-family: var(--font-ui) !important;
  font-size: .8rem !important; text-transform: uppercase; letter-spacing: .1em;
  color: var(--primary); font-weight: 700 !important; }
.takeaways ul { margin: 0; padding-left: 1.2rem; }
.takeaways li { margin: .5rem 0; }

/* stat card */
.stat {
  display: grid; grid-template-columns: auto 1fr; gap: .15rem 1.2rem;
  align-items: baseline; background: var(--bg-soft);
  border: 1px solid var(--line); border-left: 3px solid var(--accent);
  border-radius: var(--radius); padding: 1.15rem 1.4rem; margin: 1.8rem 0;
}
.stat .value {
  font-family: var(--font-display); font-variation-settings: var(--display-settings);
  font-size: 2.6rem; font-weight: 640; letter-spacing: -.03em; color: var(--accent);
  grid-row: span 2; font-variant-numeric: tabular-nums; line-height: 1;
}
.stat .label { font-size: 1rem; color: var(--ink); line-height: 1.45; }
.stat .src { font-family: var(--font-ui); font-size: .78rem; color: var(--ink-faint); }

/* pull quote */
blockquote.pull {
  margin: 2.2rem 0; padding: 0 0 0 1.6rem; border-left: 3px solid var(--accent);
  font-family: var(--font-quote); font-style: italic;
  font-size: clamp(1.35rem, 1.2rem + .7vw, 1.7rem); line-height: 1.42;
  color: var(--ink); text-wrap: pretty;
}
blockquote.pull .attr { display: block; margin-top: .7rem; font-style: normal;
  font-family: var(--font-ui); font-size: .85rem; color: var(--ink-soft); }

/* callouts */
.callout { border-radius: var(--radius); padding: 1.05rem 1.3rem; margin: 1.6rem 0;
  border: 1px solid var(--line); background: var(--bg-soft); }
.callout.tip { border-color: color-mix(in srgb, var(--primary) 30%, transparent);
  background: color-mix(in srgb, var(--primary) 5%, var(--bg)); }
.callout.warning { border-color: color-mix(in srgb, #f59e0b 45%, transparent);
  background: color-mix(in srgb, #f59e0b 6%, var(--bg)); }
.callout.cta {
  border: none; text-align: center; padding: 1.8rem 1.5rem; color: #fff;
  background:
    radial-gradient(120% 160% at 10% 0%, color-mix(in srgb, var(--accent) 55%, transparent), transparent 60%),
    color-mix(in srgb, var(--primary) 88%, #000);
}
.callout.cta a { color: #fff; font-weight: 700; text-decoration: underline;
  text-underline-offset: 3px; }
.callout.cta p { margin: 0 0 .4rem; }
.callout p:last-child { margin-bottom: 0; }

/* methodology */
.methodology {
  border: 1px dashed color-mix(in srgb, var(--accent) 40%, transparent);
  border-radius: var(--radius); padding: 1.15rem 1.4rem; margin: 2rem 0;
  background: color-mix(in srgb, var(--accent) 3%, var(--bg));
}
.methodology .m-label { font-family: var(--font-ui); font-size: .74rem;
  font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--accent); margin-bottom: .45rem; }

/* tables */
.tbl-wrap { overflow-x: auto; margin: 1.8rem 0; border: 1px solid var(--line);
  border-radius: var(--radius); }
table.oq { border-collapse: collapse; width: 100%; font-size: .94rem;
  font-variant-numeric: tabular-nums; }
table.oq caption { caption-side: top; text-align: left; padding: .85rem 1.1rem .45rem;
  font-weight: 650; font-family: var(--font-display);
  font-variation-settings: var(--display-settings); }
table.oq th { background: var(--bg-soft); text-align: left; padding: .6rem 1.1rem;
  border-bottom: 1px solid var(--line-strong); font-family: var(--font-ui);
  font-size: .82rem; letter-spacing: .02em; font-weight: 650; white-space: nowrap; }
table.oq td { padding: .6rem 1.1rem; border-bottom: 1px solid var(--line);
  vertical-align: top; }
table.oq tr:last-child td { border-bottom: none; }

/* FAQ */
.faq { margin: 2rem 0; }
.faq details {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: .95rem 1.25rem; margin: .6rem 0; background: var(--card);
}
.faq summary { font-weight: 600; cursor: pointer; font-family: var(--font-display);
  font-variation-settings: var(--display-settings); font-size: 1.05rem; }
.faq summary::marker { color: var(--accent); }
.faq details[open] summary { margin-bottom: .55rem; }

/* widgets — span the full content column, like figures */
.widget-frame { margin-top: 2rem; margin-bottom: 2rem; width: 100%; }
.widget-frame > .oq-widget { width: 100%; max-width: 100%; }

/* inline SVG charts (newsroom style, theme-adaptive) */
figure.chart {
  --oq-ink: var(--ink);
  --oq-muted: var(--ink-soft);
  --oq-accent: var(--accent);
  --oq-line: var(--line);
  margin: 2rem 0; padding: 1.2rem 1.3rem 0.9rem;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--card);
}
figure.chart svg { display: block; width: 100%; height: auto;
  font-family: var(--font-ui); }
figure.chart figcaption { font-family: var(--font-ui); font-size: .82rem;
  color: var(--ink-faint); margin-top: .6rem; text-align: left; }
.schematic-tag { margin-left: .5rem; font-size: .68rem; font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase; color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  border-radius: 999px; padding: .05rem .5rem; }

/* TOC */
.toc { display: none; }
@media (min-width: 75rem) {
  .toc { display: block; position: sticky; top: 5rem; font-family: var(--font-ui);
    font-size: .85rem; padding-top: 1.6rem; }
  .toc .t-label { font-size: .72rem; font-weight: 700; letter-spacing: .1em;
    text-transform: uppercase; color: var(--ink-faint); margin-bottom: .7rem; }
  .toc ol { list-style: none; margin: 0; padding: 0;
    border-left: 1px solid var(--line); }
  .toc li a { display: block; padding: .3rem 0 .3rem .9rem; color: var(--ink-faint);
    line-height: 1.4; border-left: 2px solid transparent; margin-left: -1.5px; }
  .toc li a:hover { color: var(--ink); text-decoration: none; }
  .toc li a.active { color: var(--primary); border-left-color: var(--primary);
    font-weight: 600; }
}

/* sources */
.sources { border-top: 1px solid var(--line); margin-top: 2.6rem; padding-top: 1.5rem; }
.sources h2 { font-size: 1rem !important; font-family: var(--font-ui) !important;
  letter-spacing: .06em; text-transform: uppercase; color: var(--ink-soft); }
.sources ol { font-family: var(--font-ui); font-size: .84rem; color: var(--ink-soft);
  padding-left: 1.2rem; }
.sources li { margin: .4rem 0; overflow-wrap: anywhere; }

/* author box */
.author-box {
  display: flex; gap: 1.05rem; align-items: flex-start; background: var(--bg-soft);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.35rem 1.5rem; margin: 2.4rem 0; font-family: var(--font-ui);
}
.author-box .avatar { width: 52px; height: 52px; border-radius: 50%; flex: none;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: var(--on-primary);
  display: flex; align-items: center; justify-content: center; font-weight: 800;
  font-size: 1.2rem; }
.author-box b { font-size: 1rem; }
.author-box .role { color: var(--ink-soft); font-size: .88rem; }
.author-box p { margin: .45rem 0 0; font-size: .9rem; color: var(--ink-soft);
  line-height: 1.55; }

/* related */
.related { margin: 2.6rem 0 1rem; }
.related h2 { font-family: var(--font-display);
  font-variation-settings: var(--display-settings); font-size: 1.3rem; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 1rem; margin-top: 1.1rem; }
.card {
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--card);
  padding: 1.15rem 1.25rem;
  transition: border-color .15s ease, transform .15s ease;
}
.card:hover { border-color: var(--line-strong); transform: translateY(-2px); }
@media (prefers-reduced-motion: reduce) { .card:hover { transform: none; } }
.card .k { font-family: var(--font-ui); font-size: .7rem; font-weight: 700;
  letter-spacing: .09em; text-transform: uppercase; color: var(--accent); }
.card h3 { margin: .45rem 0 .5rem; font-size: 1.02rem; font-family: var(--font-display);
  font-variation-settings: var(--display-settings); line-height: 1.32; font-weight: 600; }
.card h3 a { color: var(--ink); }
.card p { margin: 0; font-family: var(--font-ui); font-size: .85rem;
  color: var(--ink-soft); line-height: 1.5; }

/* ------------------------------------------------ index ------------------- */
.index-hero { padding-top: 3.6rem; padding-bottom: 2.2rem; }
@media (max-width: 40rem) {
  .index-hero { padding-top: 2.4rem; padding-bottom: 1.6rem; }
}
.index-hero h1 { margin-bottom: .7rem; max-width: 24ch; }
.index-hero p { font-size: 1.18rem; color: var(--ink-soft); max-width: 44ch;
  line-height: 1.55; text-wrap: pretty; margin: 0; }

.featured { margin-bottom: 2.4rem; }
.featured a.f-link { display: grid; gap: 0; border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px); overflow: hidden; background: var(--card);
  color: var(--ink); transition: border-color .15s ease; }
.featured a.f-link:hover { border-color: var(--line-strong); text-decoration: none; }
@media (min-width: 54rem) {
  .featured a.f-link { grid-template-columns: 1.15fr 1fr; align-items: stretch; }
}
.featured img { border-radius: 0; width: 100%; height: 100%; object-fit: cover;
  aspect-ratio: 16/10; }
.featured .f-pad { padding: 1.8rem 2rem; display: flex; flex-direction: column;
  gap: .7rem; justify-content: center; }
.featured .f-pad h2 { font-family: var(--font-display);
  font-variation-settings: var(--display-settings);
  font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2.1rem); line-height: 1.15;
  letter-spacing: -.02em; margin: 0; font-weight: 620; text-wrap: balance; }
.featured .f-pad p { margin: 0; color: var(--ink-soft); font-size: 1rem;
  line-height: 1.55; }
.featured .meta { font-family: var(--font-ui); font-size: .8rem;
  color: var(--ink-faint); }

.post-list { display: grid; gap: 1.1rem; padding-bottom: 3rem;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); }
.post-card { border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; background: var(--card); display: flex; flex-direction: column;
  transition: border-color .15s ease, transform .15s ease; }
.post-card:hover { border-color: var(--line-strong); transform: translateY(-3px); }
@media (prefers-reduced-motion: reduce) { .post-card:hover { transform: none; } }
.post-card img { border-radius: 0; aspect-ratio: 16/9; object-fit: cover; }
.post-card .pad { padding: 1.15rem 1.3rem 1.35rem; display: flex;
  flex-direction: column; gap: .5rem; flex: 1; }
.post-card h2 { font-size: 1.14rem; font-family: var(--font-display);
  font-variation-settings: var(--display-settings); margin: 0; line-height: 1.3;
  font-weight: 620; }
.post-card h2 a { color: var(--ink); }
.post-card .desc { font-size: .9rem; color: var(--ink-soft); margin: 0; flex: 1;
  line-height: 1.55; }
.post-card .meta { font-family: var(--font-ui); font-size: .78rem;
  color: var(--ink-faint); }
/* topic chips: quiet, single-line scroll on mobile */
.pillar-row { display: flex; gap: .5rem; margin-bottom: 1.8rem;
  font-family: var(--font-ui); flex-wrap: wrap; }
.pillar-row a {
  display: inline-flex; align-items: baseline; gap: .4rem;
  font-size: .8rem; font-weight: 550; white-space: nowrap;
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: 999px; padding: .3rem .85rem; color: var(--ink-soft);
  transition: color .15s ease, border-color .15s ease;
}
.pillar-row a:hover { color: var(--primary);
  border-color: color-mix(in srgb, var(--primary) 40%, transparent);
  text-decoration: none; }
.pillar-row a span { color: var(--ink-faint); font-size: .72rem;
  font-variant-numeric: tabular-nums; }
@media (max-width: 40rem) {
  .pillar-row { flex-wrap: nowrap; overflow-x: auto; margin-bottom: 1.4rem;
    padding-bottom: .3rem; scrollbar-width: none; }
  .pillar-row::-webkit-scrollbar { display: none; }
}

/* rail (search / contents / topics / subscribe) — one quiet column, one rhythm */
.rail { min-width: 0; }
@media (min-width: 75rem) {
  .rail { position: sticky; top: 4.5rem; padding-top: 3.2rem;
    display: flex; flex-direction: column; gap: 2rem;
    max-height: calc(100vh - 5rem); overflow-y: auto;
    scrollbar-width: thin; }
  .rail .toc { position: static; padding-top: 0; }
}
@media (max-width: 74.99rem) { .rail { display: none; } }
.rail .t-label { font-family: var(--font-ui); font-size: .72rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase; color: var(--ink-faint);
  margin-bottom: .7rem; }

.rail-search { position: relative; font-family: var(--font-ui); }
.oq-search {
  width: 100%; padding: .5rem .95rem; font-size: .88rem; color: var(--ink);
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: 999px; outline: none; font-family: var(--font-ui);
  transition: border-color .15s ease, background .15s ease;
}
.oq-search::placeholder { color: var(--ink-faint); }
.oq-search:focus { border-color: color-mix(in srgb, var(--primary) 55%, transparent);
  background: var(--card); }
.oq-results {
  position: absolute; top: calc(100% + .5rem); left: 0; right: 0; z-index: 70;
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: 0 16px 40px rgb(0 0 0 / .12);
  overflow: hidden;
}
.oq-results a { display: block; padding: .65rem 1rem; }
.oq-results a + a { border-top: 1px solid var(--line); }
.oq-results a:hover { background: var(--bg-soft); text-decoration: none; }
.oq-results b { display: block; font-size: .88rem; color: var(--ink);
  font-weight: 600; line-height: 1.35; }
.oq-results span { font-size: .7rem; color: var(--accent); font-weight: 650;
  text-transform: uppercase; letter-spacing: .07em; }

.rail-pillars ul { list-style: none; margin: 0; padding: 0;
  font-family: var(--font-ui); }
.rail-pillars li a {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: .6rem; padding: .32rem 0; font-size: .88rem; color: var(--ink-soft);
  line-height: 1.4;
}
.rail-pillars li a:hover { color: var(--primary); text-decoration: none; }
.rail-pillars li a span { color: var(--ink-faint); font-size: .78rem;
  font-variant-numeric: tabular-nums; }

.rail-subscribe {
  border: 1px solid color-mix(in srgb, var(--primary) 22%, transparent);
  border-radius: var(--radius); padding: 1.15rem 1.25rem;
  background: color-mix(in srgb, var(--primary) 6%, var(--bg));
  font-family: var(--font-ui);
}
.rail-subscribe .t-label { color: var(--primary); margin-bottom: .4rem; }
.rail-subscribe p { margin: 0 0 .8rem; font-size: .84rem;
  color: var(--ink-soft); line-height: 1.5; }
.oq-subscribe { display: flex; gap: .4rem; }
.oq-subscribe input { flex: 1; min-width: 0; padding: .48rem .8rem;
  font-size: .85rem; border: 1px solid var(--line); border-radius: 999px;
  background: var(--card); color: var(--ink); font-family: var(--font-ui);
  outline: none; }
.oq-subscribe input:focus {
  border-color: color-mix(in srgb, var(--primary) 55%, transparent); }
.oq-subscribe button { background: var(--primary); color: var(--on-primary);
  border: none; border-radius: 999px; padding: .48rem .95rem; font-size: .84rem;
  font-weight: 650; cursor: pointer; font-family: var(--font-ui); flex: none; }
.oq-subscribe button:hover { filter: brightness(1.07); }
.sub-done { font-size: .88rem; color: var(--primary); font-weight: 600; }

/* index placements of the same components */
.index-search { max-width: 22rem; margin: 1.7rem 0 0; }
.index-subscribe { max-width: 26rem; margin: .6rem 0 3.5rem; }

/* read next banner */
.read-next {
  display: block; margin: 2.4rem 0 0; padding: 1.3rem 1.5rem;
  border: 1px solid color-mix(in srgb, var(--primary) 30%, transparent);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--primary) 5%, var(--bg));
  color: var(--ink); transition: border-color .15s ease;
}
.read-next:hover { text-decoration: none; border-color: var(--primary); }
.read-next .rn-label { display: block; font-family: var(--font-ui);
  font-size: .74rem; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; color: var(--primary); margin-bottom: .35rem; }
.read-next .rn-title { display: block; font-family: var(--font-display);
  font-variation-settings: var(--display-settings); font-size: 1.3rem;
  font-weight: 620; line-height: 1.25; text-wrap: balance; }
.read-next .rn-meta { display: block; margin-top: .4rem;
  font-family: var(--font-ui); font-size: .8rem; color: var(--ink-soft); }

/* language menu */
.lang-menu { position: relative; font-family: var(--font-ui); }
.lang-menu summary {
  list-style: none; cursor: pointer; font-size: .85rem; font-weight: 600;
  color: var(--ink-soft); border: 1px solid var(--line-strong);
  border-radius: 999px; padding: .35rem .8rem; user-select: none;
  white-space: nowrap; flex: none;
}
@media (max-width: 40rem) {
  .lang-menu summary { padding: .32rem .6rem; font-size: .8rem; }
}
.lang-menu summary::-webkit-details-marker { display: none; }
.lang-menu summary .chev { font-size: .7rem; opacity: .7; }
.lang-menu[open] summary { color: var(--ink); border-color: var(--ink-faint); }
.lang-menu ul {
  position: absolute; right: 0; top: calc(100% + .45rem); margin: 0; padding: .4rem;
  list-style: none; background: var(--card); border: 1px solid var(--line-strong);
  border-radius: 12px; box-shadow: 0 10px 30px rgb(0 0 0 / .12); min-width: 10rem;
  z-index: 60;
}
.lang-menu li a {
  display: block; padding: .45rem .8rem; border-radius: 8px; font-size: .9rem;
  color: var(--ink-soft);
}
.lang-menu li a:hover { background: var(--bg-soft); color: var(--ink);
  text-decoration: none; }
.lang-menu li a.active { color: var(--primary); font-weight: 700; }

/* theme toggle */
.theme-toggle {
  background: none; border: 1px solid var(--line-strong); border-radius: 999px;
  width: 34px; height: 34px; cursor: pointer; color: var(--ink-soft);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 1rem; line-height: 1; padding: 0;
}
.theme-toggle:hover { color: var(--ink); border-color: var(--ink-faint); }
.theme-toggle .sun { display: none; }
:root[data-theme="dark"] .theme-toggle .sun { display: inline; }
:root[data-theme="dark"] .theme-toggle .moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .sun { display: inline; }
  :root:not([data-theme="light"]) .theme-toggle .moon { display: none; }
}

/* demo mode */
.demo-banner {
  background: color-mix(in srgb, var(--accent) 12%, var(--bg));
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  color: var(--ink); font-family: var(--font-ui); font-size: .82rem;
  font-weight: 600; text-align: center; padding: .5rem 1rem; letter-spacing: .02em;
}
.demo-contact { font-weight: 600; color: var(--ink-soft); }

/* disclaimer + footer */
.disclaimer { font-family: var(--font-ui); font-size: .8rem; color: var(--ink-faint);
  border-top: 1px solid var(--line); margin-top: 2.2rem; padding-top: 1.1rem; }
.site-foot { border-top: 1px solid var(--line); padding: 2.2rem 0 3rem;
  color: var(--ink-faint); font-family: var(--font-ui); font-size: .86rem; }
.site-foot .inner { max-width: var(--wide); margin: 0 auto; padding: 0 1.25rem;
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }

@media print {
  .site-head, .site-foot, .related, .callout.cta, .lang-row, .toc, .progress { display: none; }
  body { font-size: 11pt; }
}