/* ------------------------------------------------------------ tokens */
:root {
  --bg: #f7f6f2;
  --bg-elev: #ffffff;
  --bg-sunk: #efede6;
  --ink: #16181d;
  --ink-2: #474b55;
  --ink-3: #7c808a;
  --line: #e2dfd6;
  --line-2: #d3cfc3;
  --accent: #9a3b1e;
  --accent-2: #c2562f;
  --accent-soft: #f6e6dd;
  --navy: #1b2a41;
  --focus: #c2562f55;
  --shadow-sm: 0 1px 2px rgb(20 20 30 / .05);
  --shadow: 0 1px 2px rgb(20 20 30 / .04), 0 8px 24px -12px rgb(20 20 30 / .14);
  --shadow-lg: 0 24px 60px -24px rgb(20 20 30 / .28);
  --radius: 14px;
  --radius-sm: 9px;
  --serif: "Newsreader", "Iowan Old Style", Georgia, serif;
  --sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --maxw: 1200px;
}
[data-theme="dark"] {
  --bg: #0f1115;
  --bg-elev: #171a20;
  --bg-sunk: #0b0d10;
  --ink: #ecebe7;
  --ink-2: #b4b6bd;
  --ink-3: #7f838d;
  --line: #262a32;
  --line-2: #333843;
  --accent: #f08a5d;
  --accent-2: #f5a27c;
  --accent-soft: #2a1d18;
  --navy: #d9e1ee;
  --focus: #f08a5d55;
  --shadow: 0 1px 2px rgb(0 0 0 / .3), 0 8px 24px -12px rgb(0 0 0 / .6);
  --shadow-lg: 0 24px 60px -20px rgb(0 0 0 / .7);
}

/* ------------------------------------------------------------ base */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 15px/1.55 var(--sans); -webkit-font-smoothing: antialiased;
  min-height: 100vh; display: flex; flex-direction: column;
  transition: background .25s, color .25s;
}
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; color: inherit; }
::selection { background: var(--accent-soft); color: var(--ink); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 6px; }
main { flex: 1; outline: none; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* ------------------------------------------------------------ top bar */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(160%) blur(14px); -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner { max-width: var(--maxw); margin: 0 auto; padding: 12px 24px; display: flex; align-items: center; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark {
  display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px;
  background: var(--ink); color: var(--bg); font: 600 20px/1 var(--serif);
}
.brand-text { font: 500 21px/1 var(--serif); letter-spacing: -.01em; }
.brand-text em { color: var(--accent); }
.topsearch {
  flex: 1; max-width: 460px; display: flex; align-items: center; gap: 8px;
  background: var(--bg-elev); border: 1px solid var(--line); border-radius: 999px; padding: 0 12px;
  transition: border-color .15s, box-shadow .15s;
}
.topsearch:focus-within { border-color: var(--accent); box-shadow: 0 0 0 4px var(--focus); }
.topsearch svg { color: var(--ink-3); flex-shrink: 0; }
.topsearch input { flex: 1; border: 0; background: none; outline: none; padding: 9px 0; min-width: 0; }
.topsearch kbd { font: 500 11px var(--sans); color: var(--ink-3); border: 1px solid var(--line-2); border-radius: 5px; padding: 1px 6px; }
.topnav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.topnav a { padding: 7px 12px; border-radius: 999px; color: var(--ink-2); font-weight: 500; font-size: 14px; display: flex; align-items: center; gap: 6px; transition: background .15s, color .15s; }
.topnav a:hover { background: var(--bg-sunk); color: var(--ink); }
.topnav a.active { color: var(--ink); background: var(--bg-sunk); }
.pill { font-size: 11px; font-weight: 600; background: var(--accent); color: #fff; border-radius: 999px; padding: 1px 7px; min-width: 20px; text-align: center; }
[data-theme="dark"] .pill { color: #1a0f0a; }
.pill[data-zero="1"] { background: var(--line-2); color: var(--ink-2); }
.icon-btn { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 999px; border: 1px solid var(--line); background: var(--bg-elev); cursor: pointer; color: var(--ink-2); margin-left: 6px; }
.icon-btn:hover { color: var(--ink); border-color: var(--line-2); }
[data-theme="light"] .i-moon, [data-theme="dark"] .i-sun { display: none; }

/* ------------------------------------------------------------ hero */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(900px 400px at 85% -10%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 70%),
    radial-gradient(700px 360px at -10% 110%, color-mix(in srgb, var(--navy) 10%, transparent), transparent 70%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 70% 30%, #000 0%, transparent 65%);
}
.hero-inner { position: relative; z-index: 1; max-width: var(--maxw); margin: 0 auto; padding: 84px 24px 72px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 12.5px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); }
.eyebrow::before { content: ""; width: 22px; height: 1.5px; background: currentColor; }
.hero h1 { font: 400 clamp(40px, 6vw, 68px)/1.02 var(--serif); letter-spacing: -.025em; margin: 18px 0 18px; max-width: 14ch; }
.hero h1 em { color: var(--accent); }
.hero p.lede { font-size: 18px; color: var(--ink-2); max-width: 58ch; margin: 0 0 34px; }
.bigsearch {
  display: flex; align-items: center; gap: 10px; max-width: 720px;
  background: var(--bg-elev); border: 1px solid var(--line-2); border-radius: 18px; padding: 8px 8px 8px 18px;
  box-shadow: var(--shadow-lg); transition: border-color .15s, box-shadow .15s;
}
.bigsearch:focus-within { border-color: var(--accent); box-shadow: var(--shadow-lg), 0 0 0 5px var(--focus); }
.bigsearch svg { width: 22px; height: 22px; color: var(--ink-3); }
.bigsearch input { flex: 1; border: 0; outline: none; background: none; font-size: 17px; padding: 12px 0; min-width: 0; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid transparent; border-radius: 12px; padding: 11px 20px; cursor: pointer;
  font-weight: 600; font-size: 14.5px; transition: transform .1s, background .15s, border-color .15s, color .15s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: var(--accent); color: #fff; }
.btn-ghost { background: var(--bg-elev); border-color: var(--line); color: var(--ink-2); }
.btn-ghost:hover { border-color: var(--line-2); color: var(--ink); }
.btn-sm { padding: 7px 12px; font-size: 13px; border-radius: 9px; }
.suggest { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; align-items: center; }
.suggest span { color: var(--ink-3); font-size: 13.5px; margin-right: 4px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 500;
  padding: 5px 12px; border-radius: 999px; border: 1px solid var(--line); background: var(--bg-elev); color: var(--ink-2);
  cursor: pointer; transition: all .15s; white-space: nowrap;
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip.on { background: var(--ink); border-color: var(--ink); color: var(--bg); }
.chip .x { opacity: .6; }

.stats { display: flex; gap: 48px; margin-top: 56px; flex-wrap: wrap; }
.stat b { display: block; font: 400 38px/1 var(--serif); letter-spacing: -.02em; }
.stat span { font-size: 13px; color: var(--ink-3); text-transform: uppercase; letter-spacing: .06em; font-weight: 600; }

/* ------------------------------------------------------------ sections */
.section { max-width: var(--maxw); margin: 0 auto; padding: 64px 24px 8px; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin-bottom: 24px; }
.section-head h2 { font: 400 32px/1.1 var(--serif); letter-spacing: -.02em; margin: 0; }
.section-head p { margin: 6px 0 0; color: var(--ink-3); }
.link-arrow { color: var(--accent); font-weight: 600; font-size: 14px; white-space: nowrap; }
.link-arrow:hover { text-decoration: underline; text-underline-offset: 3px; }

.topic-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 16px; }
.topic-card {
  background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 22px 16px;
  box-shadow: var(--shadow-sm); transition: border-color .15s, box-shadow .2s, transform .2s;
}
.topic-card:hover { border-color: var(--line-2); box-shadow: var(--shadow); }
.topic-card header { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.topic-card h3 { font: 500 22px/1.2 var(--serif); margin: 0; letter-spacing: -.01em; }
.topic-card h3 a:hover { color: var(--accent); }
.topic-card .count { font-size: 12.5px; color: var(--ink-3); font-variant-numeric: tabular-nums; }
.topic-card p { color: var(--ink-3); font-size: 13.5px; margin: 6px 0 14px; }
.subtopics { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.subtopics li a { display: flex; justify-content: space-between; gap: 10px; padding: 8px 0; border-bottom: 1px dashed var(--line); font-size: 14px; color: var(--ink-2); }
.subtopics li:last-child a { border-bottom: 0; }
.subtopics li a:hover { color: var(--accent); }
.subtopics .n { color: var(--ink-3); font-variant-numeric: tabular-nums; font-size: 13px; }
.bar { height: 3px; border-radius: 3px; background: var(--bg-sunk); margin-top: 4px; overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--accent); opacity: .65; border-radius: 3px; }

.journal-strip { display: flex; flex-wrap: wrap; gap: 10px; }
.journal-strip a { font: 500 15px var(--serif); padding: 8px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg-elev); color: var(--ink-2); transition: all .15s; }
.journal-strip a:hover { color: var(--accent); border-color: var(--accent); }
.journal-strip a small { font: 500 11.5px var(--sans); color: var(--ink-3); margin-left: 6px; }

/* ------------------------------------------------------------ article cards */
.cards { display: grid; gap: 12px; }
.card {
  position: relative; background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 22px; box-shadow: var(--shadow-sm); transition: border-color .15s, box-shadow .2s;
}
.card:hover { border-color: var(--line-2); box-shadow: var(--shadow); }
.card-meta { display: flex; flex-wrap: wrap; gap: 6px 14px; align-items: center; font-size: 12.5px; color: var(--ink-3); margin-bottom: 6px; }
.card-meta .jn { color: var(--accent); font-weight: 600; letter-spacing: .01em; }
.card-meta .jn:hover { text-decoration: underline; text-underline-offset: 3px; }
.card h3 { font: 500 20.5px/1.28 var(--serif); margin: 0 0 6px; letter-spacing: -.01em; padding-right: 44px; }
.card h3 a:hover { color: var(--accent); }
.card .authors { font-size: 14px; color: var(--ink-2); margin-bottom: 8px; }
.card .authors a:hover { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.card .abs { color: var(--ink-2); font-size: 14px; margin: 0 0 12px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag { font-size: 12px; font-weight: 500; padding: 3px 9px; border-radius: 6px; background: var(--bg-sunk); color: var(--ink-2); border: 1px solid transparent; transition: all .15s; }
a.tag:hover { border-color: var(--accent); color: var(--accent); }
.save-btn {
  position: absolute; top: 16px; right: 16px; width: 36px; height: 36px; display: grid; place-items: center;
  border-radius: 10px; border: 1px solid var(--line); background: var(--bg-elev); color: var(--ink-3); cursor: pointer; transition: all .15s;
}
.save-btn:hover { color: var(--accent); border-color: var(--accent); }
.save-btn.on { color: #fff; background: var(--accent); border-color: var(--accent); }
.save-btn.on svg { fill: currentColor; }
[data-theme="dark"] .save-btn.on { color: #1a0f0a; }
mark { background: color-mix(in srgb, var(--accent) 22%, transparent); color: inherit; border-radius: 3px; padding: 0 1px; }

/* ------------------------------------------------------------ browse layout */
.page-head { max-width: var(--maxw); margin: 0 auto; padding: 40px 24px 0; }
.crumbs { font-size: 13px; color: var(--ink-3); display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.crumbs a:hover { color: var(--accent); }
.page-head h1 { font: 400 clamp(32px, 4vw, 44px)/1.08 var(--serif); letter-spacing: -.02em; margin: 0 0 8px; }
.page-head p { color: var(--ink-2); margin: 0; max-width: 70ch; }
.layout { max-width: var(--maxw); margin: 0 auto; padding: 28px 24px 40px; display: grid; grid-template-columns: 280px 1fr; gap: 36px; align-items: start; }
.sidebar { position: sticky; top: 84px; max-height: calc(100vh - 100px); overflow: auto; padding-right: 6px; scrollbar-width: thin; }
.side-block { margin-bottom: 26px; }
.side-block h4 { font-size: 11.5px; text-transform: uppercase; letter-spacing: .09em; color: var(--ink-3); margin: 0 0 10px; font-weight: 700; }
.tree { list-style: none; margin: 0; padding: 0; }
.tree > li { margin-bottom: 2px; }
.tree a { display: flex; justify-content: space-between; gap: 8px; padding: 6px 10px; border-radius: 8px; font-size: 14px; color: var(--ink-2); transition: background .12s, color .12s; }
.tree a:hover { background: var(--bg-sunk); color: var(--ink); }
.tree a.on { background: var(--ink); color: var(--bg); }
.tree a.on .n { color: inherit; opacity: .7; }
.tree .parent > a { font-weight: 600; color: var(--ink); }
.tree ul { list-style: none; margin: 2px 0 8px 10px; padding: 0 0 0 8px; border-left: 1px solid var(--line); }
.tree .n { color: var(--ink-3); font-size: 12.5px; font-variant-numeric: tabular-nums; }
.field { display: grid; gap: 6px; }
.select, .input {
  width: 100%; background: var(--bg-elev); border: 1px solid var(--line); border-radius: 10px; padding: 9px 12px; font-size: 14px; outline: none;
}
.select:focus, .input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px var(--focus); }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.toolbar .count { color: var(--ink-2); font-size: 14px; }
.toolbar .count b { color: var(--ink); font-variant-numeric: tabular-nums; }
.active-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.seg { display: inline-flex; background: var(--bg-sunk); border-radius: 10px; padding: 3px; border: 1px solid var(--line); }
.seg button { border: 0; background: none; padding: 6px 12px; border-radius: 7px; font-size: 13px; font-weight: 500; color: var(--ink-2); cursor: pointer; }
.seg button.on { background: var(--bg-elev); color: var(--ink); box-shadow: var(--shadow-sm); }
.pager { display: flex; justify-content: center; align-items: center; gap: 6px; margin: 28px 0 8px; flex-wrap: wrap; }
.pager button { min-width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg-elev); cursor: pointer; font-size: 14px; color: var(--ink-2); padding: 0 10px; }
.pager button:hover:not(:disabled) { border-color: var(--line-2); color: var(--ink); }
.pager button.on { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.pager button:disabled { opacity: .4; cursor: default; }
.pager .gap { color: var(--ink-3); padding: 0 4px; }
.empty { text-align: center; padding: 70px 20px; color: var(--ink-3); border: 1px dashed var(--line-2); border-radius: var(--radius); background: var(--bg-elev); }
.empty h3 { font: 400 24px var(--serif); color: var(--ink); margin: 0 0 6px; }
.filter-toggle { display: none; }

/* ------------------------------------------------------------ year histogram */
.histo { display: flex; align-items: end; gap: 2px; height: 46px; margin-bottom: 6px; }
.histo i { flex: 1; background: var(--line-2); border-radius: 2px 2px 0 0; min-height: 2px; transition: background .15s; }
.histo i.in { background: var(--accent); opacity: .7; }
.histo-axis { display: flex; justify-content: space-between; font-size: 11px; color: var(--ink-3); margin-bottom: 10px; }

/* ------------------------------------------------------------ article page */
.article { max-width: var(--maxw); margin: 0 auto; padding: 40px 24px 40px; display: grid; grid-template-columns: 1fr 320px; gap: 48px; align-items: start; }
.article h1 { font: 400 clamp(30px, 4vw, 46px)/1.1 var(--serif); letter-spacing: -.02em; margin: 6px 0 16px; }
.article .byline { font-size: 17px; color: var(--ink-2); margin-bottom: 8px; }
.article .byline a { color: var(--ink); font-weight: 500; border-bottom: 1px solid var(--line-2); }
.article .byline a:hover { color: var(--accent); border-color: var(--accent); }
.article .publine { color: var(--ink-3); font-size: 14.5px; margin-bottom: 28px; }
.article .publine a { color: var(--accent); font-weight: 600; }
.article h2 { font-size: 12px; text-transform: uppercase; letter-spacing: .1em; color: var(--ink-3); margin: 34px 0 12px; font-weight: 700; }
.abstract { font: 400 19px/1.65 var(--serif); color: var(--ink); }
.abstract::first-letter { font-size: 3.1em; float: left; line-height: .9; padding: 6px 8px 0 0; color: var(--accent); }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.panel { background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow-sm); margin-bottom: 16px; }
.panel h4 { font-size: 11.5px; text-transform: uppercase; letter-spacing: .09em; color: var(--ink-3); margin: 0 0 12px; font-weight: 700; }
.kv { display: grid; grid-template-columns: 90px 1fr; gap: 8px 12px; font-size: 14px; margin: 0; }
.kv dt { color: var(--ink-3); }
.kv dd { margin: 0; color: var(--ink); }
.cite-box { position: relative; font: 400 14.5px/1.5 var(--serif); background: var(--bg-sunk); border-radius: 10px; padding: 12px 14px; margin-bottom: 10px; color: var(--ink); word-break: break-word; }
.cite-tabs { margin-bottom: 10px; }
.mini-list { list-style: none; margin: 0; padding: 0; }
.mini-list li { padding: 10px 0; border-bottom: 1px solid var(--line); }
.mini-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.mini-list a.t { font: 500 15.5px/1.3 var(--serif); display: block; }
.mini-list a.t:hover { color: var(--accent); }
.mini-list .m { font-size: 12.5px; color: var(--ink-3); margin-top: 2px; }

/* ------------------------------------------------------------ journals page */
.jgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 14px; }
.jcard { display: block; background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; transition: all .18s; }
.jcard:hover { border-color: var(--accent); box-shadow: var(--shadow); transform: translateY(-2px); }
.jcard .abbr { font-size: 12px; color: var(--ink-3); font-weight: 600; letter-spacing: .04em; }
.jcard h3 { font: 500 21px/1.2 var(--serif); margin: 6px 0 14px; }
.jcard .foot { display: flex; justify-content: space-between; font-size: 13px; color: var(--ink-3); }
.jcard .foot b { color: var(--accent); font-variant-numeric: tabular-nums; }
.badge { font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--accent); background: var(--accent-soft); padding: 2px 7px; border-radius: 5px; margin-left: 6px; }

/* ------------------------------------------------------------ author page */
.author-head { display: flex; gap: 22px; align-items: center; }
.avatar { width: 72px; height: 72px; border-radius: 20px; display: grid; place-items: center; font: 500 28px var(--serif); background: var(--ink); color: var(--bg); flex-shrink: 0; }

/* ------------------------------------------------------------ prose */
.prose { max-width: 760px; margin: 0 auto; padding: 40px 24px 40px; }
.prose h1 { font: 400 44px/1.1 var(--serif); letter-spacing: -.02em; margin: 0 0 18px; }
.prose h2 { font: 500 24px var(--serif); margin: 36px 0 10px; }
.prose p, .prose li { color: var(--ink-2); font-size: 16px; }
.prose a { color: var(--accent); }
.prose table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 12px 0; }
.prose td, .prose th { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); }
.prose th { color: var(--ink-3); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }

/* ------------------------------------------------------------ misc */
.loading { display: grid; place-items: center; padding: 140px 20px; color: var(--ink-3); }
.spinner { width: 30px; height: 30px; border-radius: 50%; border: 3px solid var(--line); border-top-color: var(--accent); animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.fade-in { animation: fade .28s ease both; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translate(-50%, 20px); opacity: 0; pointer-events: none;
  background: var(--ink); color: var(--bg); padding: 10px 18px; border-radius: 12px; font-size: 14px; font-weight: 500;
  box-shadow: var(--shadow-lg); transition: all .25s; z-index: 100;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.footer { border-top: 1px solid var(--line); margin-top: 60px; }
.footer-inner { max-width: var(--maxw); margin: 0 auto; padding: 28px 24px 36px; display: flex; justify-content: space-between; gap: 24px; font-size: 13.5px; color: var(--ink-3); flex-wrap: wrap; }
.footer-inner strong { color: var(--ink-2); }
.footer-links { display: flex; gap: 18px; }
.footer-links a:hover { color: var(--accent); }

/* ------------------------------------------------------------ responsive */
@media (max-width: 980px) {
  .layout, .article { grid-template-columns: 1fr; }
  .sidebar { position: static; max-height: none; display: none; }
  .sidebar.open { display: block; }
  .filter-toggle { display: inline-flex; }
  .topnav a[data-nav="search"], .topnav a[data-nav="journals"] { display: none; }
}
@media (max-width: 720px) {
  .topbar-inner { flex-wrap: wrap; gap: 12px; }
  .topsearch { order: 3; max-width: none; flex-basis: 100%; }
  .topsearch kbd { display: none; }
  .topnav a[data-nav="topics"] { display: none; }
  .hero-inner { padding: 54px 20px 48px; }
  .stats { gap: 28px; }
  .topic-grid { grid-template-columns: 1fr; }
  .card h3 { font-size: 18.5px; }
}

/* the hidden attribute always wins over component display rules */
[hidden] { display: none !important; }