/* Neckpinch: everything that draws a paper. Cards in lists, the paper pages
   (/papers/<id>/) and the connection graphs, which author pages share.
   layout.mjs loads this file only on pages that use these classes; the markup is
   in scripts/build/paper-ui.mjs. See docs/PAPERS.md. */

/* ── The canon rail (/papers/) ────────────────────────────────────────── */
.canon { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 16px 0 0 20px; margin-bottom: 24px; }
.canon .rail { grid-auto-columns: 280px; padding: 4px 16px 20px 0; }
.canon-card {
  scroll-snap-align: start; display: flex; flex-direction: column; gap: 8px; padding: 22px; min-height: 250px; border-radius: var(--radius);
  background: var(--bg-elev); color: var(--text); border: 1px solid var(--line); transition: border-color .15s;
}
.canon-card:hover { border-color: var(--text-3); }
.canon-year { font: 600 14px/1 var(--mono); color: var(--rubric); }
.canon-title { font-weight: 600; font-size: 18px; line-height: 1.3; color: var(--text); }
.canon-title:hover { color: var(--link); text-decoration: none; }
.canon-authors { font-size: 13px; color: var(--text-2); }
.canon-note { font-size: 14px; color: var(--text-2); line-height: 1.4; }
.canon-links { margin-top: auto; display: flex; flex-wrap: wrap; gap: 6px 16px; }
.canon-link { color: var(--link); font-size: 14px; display: inline-flex; gap: 4px; align-items: center; }

/* ── Lists of papers ──────────────────────────────────────────────────── */
.month-title { font-size: 24px; margin: 40px 0 8px; padding-bottom: 12px; border-bottom: 1px solid var(--line); display: flex; gap: 10px; align-items: baseline; }
.month-title .muted { font: 500 14px var(--font); }
.paper-list { display: grid; gap: 0; }
.paper { padding: 24px 0; border-bottom: 1px solid var(--line); }
.paper:last-child { border-bottom: 0; }
.paper-meta { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; font-size: 13px; color: var(--text-2); margin-bottom: 8px; }
.paper-title { font-size: 21px; line-height: 1.3; font-weight: 600; margin-bottom: 4px; text-wrap: pretty; }
.paper-title a { color: var(--text); }
.paper-title a:hover { color: var(--link); text-decoration: none; }
.paper-authors { font-size: 16px; font-style: italic; color: var(--text-2); margin-bottom: 10px; }
.paper-note { font-size: 15px; background: var(--bg-soft); padding: 10px 14px; border-radius: 8px; }
.paper-abstract { font-size: 16.5px; line-height: 1.55; color: var(--text); position: relative; overflow: hidden; max-height: calc(1.55em * 3); transition: max-height .4s var(--ease); }
.paper-abstract p { margin: 0; }
.paper-abstract::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1.6em; background: linear-gradient(transparent, var(--bg)); pointer-events: none; }
.paper-abstract.open { max-height: 80em; }
.paper-abstract.open::after { display: none; }
.more { border: 0; background: none; color: var(--link); font: inherit; font-family: var(--font); font-size: 14px; padding: 4px 0; cursor: pointer; margin-bottom: 10px; }
.more[hidden] { display: none; }
a.kw { color: inherit; background: linear-gradient(transparent 62%, var(--accent-soft) 62%); border-radius: 2px; box-shadow: inset 0 -1px 0 color-mix(in srgb, var(--accent) 45%, transparent); }
a.kw:hover { color: var(--accent); text-decoration: none; background: var(--accent-soft); }
.paper .chips { margin: 10px 0 14px; }
.paper-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.paper.compact { padding: 18px 0; }
.paper.compact .paper-title { font-size: 18px; }
.paper.compact .chips { margin: 6px 0 12px; }
.paper.compact .paper-authors { margin-bottom: 4px; }
.paper .katex { font-size: 1.05em; }
.paper.is-cursor { box-shadow: -14px 0 0 -11px var(--rubric); background: linear-gradient(90deg, var(--accent-soft), transparent 60%); }
.papers-filters { display: contents; }
.papers-filters .toolbar { border-bottom: 1px solid var(--line); }
.papers-filters .filter-chips { padding: 12px 0 4px; }
/* Long lists stay light: a card off screen is not laid out or painted until it comes near. */
.paper-list .paper { content-visibility: auto; contain-intrinsic-size: auto 320px; }
.paper-list .paper:focus-within { content-visibility: visible; }

/* ── Paper pages: abstract, connected papers, background ─────────────── */
.paper-hero h1 { font-size: clamp(28px, 4.2vw, 42px); line-height: 1.15; max-width: 28em; text-wrap: balance; }
.paper-hero .paper-authors { font-size: 18px; }
.paper-hero .paper-actions { margin: 16px 0 4px; }
.paper-page-abstract { max-width: 46em; }
.paper-read { margin: 18px 0 0; }
.paper-facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, max-content)); gap: 12px 32px; max-width: 46em; margin: 22px 0 0; padding-top: 16px; border-top: 1px solid var(--line); font: 14px/1.4 var(--font); }
.paper-facts dt { color: var(--text-2); font-size: 12.5px; margin-bottom: 2px; }
.paper-facts dd { margin: 0; overflow-wrap: anywhere; }
.paper-comment { font-size: 14px; max-width: 46em; margin-top: 16px; }
#abstract .chips { margin-top: 14px; }
.paper-sub { font-size: 20px; margin: 32px 0 4px; }
.paper-cited { display: grid; gap: 10px; max-width: 46em; margin-bottom: 18px; }
.paper-cited p { margin: 0; padding: 12px 16px; background: var(--bg-soft); border-radius: 8px; font-size: 16px; }
.paper-cited .refresher-label { display: inline; margin-right: 6px; }
.cg { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 32px; align-items: start; }
/* A soft field of light from the centre, over a faint grid of points: the papers or people look gathered around one idea. */
.cg-figure { --cg-bg: color-mix(in srgb, var(--accent) 5%, var(--bg-elev)); margin: 0; padding: 6px 6px 2px; border: 1px solid color-mix(in srgb, var(--accent) 22%, var(--line)); border-radius: var(--radius-lg); position: sticky; top: calc(var(--nav-h) + 16px); box-shadow: var(--shadow-sm);
  background: radial-gradient(circle at 50% 44%, color-mix(in srgb, var(--accent) 15%, transparent), transparent 58%), radial-gradient(90% 70% at 100% 100%, color-mix(in srgb, var(--rubric) 7%, transparent), transparent 70%), radial-gradient(circle, color-mix(in srgb, var(--text) 13%, transparent) 1px, transparent 1.4px) 0 0 / 20px 20px, var(--cg-bg); }
.cg-orbits circle { fill: none; stroke: var(--accent); stroke-opacity: .17; stroke-width: 1; stroke-dasharray: 2 6; stroke-linecap: round; }
.cg-orbits .cg-halo { fill: var(--rubric); fill-opacity: .1; stroke: var(--rubric); stroke-opacity: .28; stroke-dasharray: none; }
.cg-svg { display: block; width: 100%; height: auto; }
.cg-edge { stroke: var(--text-3); stroke-opacity: .5; stroke-linecap: round; transition: stroke .15s, stroke-opacity .15s; }
.cg-edge-side { stroke-width: 1; stroke-dasharray: 2 4; stroke-opacity: .45; }
.cg-edge.is-hot { stroke: var(--accent); stroke-opacity: 1; }
.cg-self circle { fill: var(--rubric); }
.cg-self-label, .cg-label { paint-order: stroke; stroke: var(--cg-bg); stroke-width: 5px; stroke-linejoin: round; }
.cg-self-label { font: 600 13px var(--font); fill: var(--rubric); text-anchor: middle; }
.cg-node circle { fill: var(--bg-elev); stroke: var(--accent); stroke-width: 1.8; transition: fill .15s; }
.cg-num { font: 600 13px var(--font); fill: var(--accent); text-anchor: middle; dominant-baseline: central; pointer-events: none; }
.cg-label { font: 14px var(--font); fill: var(--text-2); dominant-baseline: middle; }
.cg-node.is-flows circle { stroke: var(--purple); stroke-dasharray: 4 2.5; }
.cg-node.is-flows .cg-num { fill: var(--purple); }
.cg-node:hover circle, .cg-node:focus-visible circle, .cg-node.is-hot circle { fill: var(--accent); }
.cg-node.is-flows:hover circle, .cg-node.is-flows:focus-visible circle, .cg-node.is-flows.is-hot circle { fill: var(--purple); }
.cg-node:hover .cg-num, .cg-node:focus-visible .cg-num, .cg-node.is-hot .cg-num { fill: var(--bg-elev); }
.cg-node:hover .cg-label, .cg-node.is-hot .cg-label { fill: var(--text); }
.cg-node:focus-visible { outline: none; }
.cg-caption { font: 13px/1.5 var(--font); color: var(--text-2); padding: 2px 10px 10px; }
.cg-key { display: flex; flex-wrap: wrap; gap: 4px 16px; margin-top: 4px; }
.cg-key > span { display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
.cg-dot { width: 11px; height: 11px; border-radius: 50%; border: 1.8px solid var(--accent); background: var(--bg-elev); }
.cg-dot.is-flows { border-color: var(--purple); border-style: dashed; }
.cg-line { width: 18px; border-top: 1.5px dashed var(--text-3); }
.cg-list { list-style: none; margin: 0; padding: 0; display: grid; }
.cg-item { display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 12px; padding: 14px 8px 14px 4px; border-bottom: 1px solid var(--line); border-radius: 6px; transition: background .15s; }
.cg-item:first-child { padding-top: 4px; }
.cg-item.is-hot { background: linear-gradient(90deg, var(--accent-soft), transparent 75%); }
.cg-n { width: 26px; height: 26px; border-radius: 50%; border: 1.8px solid var(--accent); color: var(--accent); font: 600 13px/1 var(--font); display: grid; place-items: center; margin-top: 1px; }
.cg-item.is-flows .cg-n { border-color: var(--purple); border-style: dashed; color: var(--purple); }
.cg-title { display: block; font-weight: 600; font-size: 17.5px; line-height: 1.3; color: var(--text); text-wrap: pretty; }
.cg-title:hover { color: var(--link); text-decoration: none; }
.cg-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 10px; font: 13px var(--font); color: var(--text-2); margin: 5px 0 0; }
.cg-meta a { display: inline-flex; align-items: center; gap: 3px; }
.cg-why { font: 13.5px/1.5 var(--font); color: var(--text-2); margin: 6px 0 0; }
.cg-why b { font-weight: 600; color: var(--text); margin-right: 2px; }
.cg .katex { font-size: 1.02em; }
@media (max-width: 900px) {
  .cg { grid-template-columns: 1fr; gap: 20px; }
  .cg-figure { position: static; max-width: 560px; }
}
@media (max-width: 520px) { .cg-label { font-size: 17px; } .cg-num { font-size: 15px; } .cg-self-label { font-size: 15px; } }

/* On a phone the filters are several rows tall: stuck to the top, they would cover half of what they filter. */
@media (max-width: 720px) { .papers-filters .toolbar { position: static; } }