/* Plasnomic hi-tech redesign - single article pages (news + cover stories).
   Pages are generated by tools/build_articles.py; tokens and .article typography come from site.css. */

/* ---------- reading progress ---------- */
.read-progress { position: fixed; inset: 0 0 auto 0; height: 3px; z-index: 60; pointer-events: none; }
.read-progress span {
  display: block; height: 100%; width: 100%; transform-origin: 0 50%; transform: scaleX(var(--p, 0));
  background: linear-gradient(90deg, var(--green-deep), var(--green) 60%, var(--signal));
  box-shadow: 0 0 12px rgba(69, 181, 91, .55);
}

/* ---------- hero ---------- */
.art-hero { padding-bottom: clamp(40px, 5vw, 72px); background-color: var(--bg); }
.art-hero.grid-bg { background-position: center top; }
.art-hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, color-mix(in srgb, var(--bg) 55%, transparent), var(--bg) 92%);
}
.art-hero-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: clamp(32px, 5vw, 80px); align-items: end; margin-top: clamp(28px, 4vw, 48px); }
.art-hero--story .art-hero-grid { grid-template-columns: minmax(0, 1fr) clamp(220px, 24vw, 330px); align-items: center; }
.art-hero h1 {
  margin: 22px 0 0; max-width: 22ch;
  font-size: clamp(34px, 4.6vw, 64px); line-height: 1.06; letter-spacing: -0.035em;
  text-wrap: balance;
}
.art-meta {
  font: 500 12px/1 var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--mute);
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px;
}
.art-meta .cat {
  color: var(--green-deep); padding: 7px 10px; border-radius: 99px;
  background: color-mix(in srgb, var(--green) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--green) 30%, transparent);
}
.art-meta time, .art-meta span:last-child { display: inline-flex; align-items: center; gap: 14px; }
.art-meta time::before, .art-meta span:last-child::before { content: ""; width: 4px; height: 4px; border-radius: 50%; background: var(--line-2); }
.art-dek { margin-top: 24px; max-width: 52ch; color: var(--ink-2); font-size: clamp(18px, 1.5vw, 21px); }

/* magazine cover beside the title */
.art-cover { justify-self: end; width: 100%; }
.art-cover .cover-img { box-shadow: 0 40px 80px -36px rgba(11,18,15,.55), 0 0 0 1px var(--line); }

/* hero media (news): a dark instrument panel, the image never upscaled into mush */
.art-media {
  position: relative; margin: clamp(36px, 5vw, 64px) 0 0; border-radius: var(--r); overflow: hidden;
  background: var(--night-2); height: clamp(280px, 42vw, 560px); display: grid; place-items: center;
  box-shadow: 0 30px 70px -40px rgba(11,18,15,.6);
}
.art-media::after {
  content: ""; position: absolute; inset: 12px; pointer-events: none; border-radius: 6px;
  background:
    linear-gradient(var(--signal), var(--signal)) left top / 18px 1px no-repeat,
    linear-gradient(var(--signal), var(--signal)) left top / 1px 18px no-repeat,
    linear-gradient(var(--signal), var(--signal)) right top / 18px 1px no-repeat,
    linear-gradient(var(--signal), var(--signal)) right top / 1px 18px no-repeat,
    linear-gradient(var(--signal), var(--signal)) left bottom / 18px 1px no-repeat,
    linear-gradient(var(--signal), var(--signal)) left bottom / 1px 18px no-repeat,
    linear-gradient(var(--signal), var(--signal)) right bottom / 18px 1px no-repeat,
    linear-gradient(var(--signal), var(--signal)) right bottom / 1px 18px no-repeat;
  opacity: .55;
}
.art-media-bg { position: absolute; inset: -40px; width: calc(100% + 80px); height: calc(100% + 80px); max-width: none; object-fit: cover; filter: blur(40px) saturate(1.2); opacity: .45; }
.art-media-img { position: relative; height: 100%; width: auto; max-width: 100%; object-fit: contain; }
.art-media.is-wide { height: auto; display: block; }
.art-media.is-wide .art-media-img { width: 100%; height: auto; max-height: 640px; object-fit: cover; }

/* ---------- body + table of contents ---------- */
.art-main { padding: clamp(48px, 6vw, 88px) 0 clamp(40px, 5vw, 64px); background: var(--paper); border-top: 1px solid var(--line); }
.art-layout { display: block; }
.toc { display: none; }
@media (min-width: 1200px) {
  .art-layout.has-toc { display: grid; grid-template-columns: 240px minmax(0, 760px); gap: 72px; justify-content: center; }
  .art-layout.has-toc .article { margin: 0; }
  .toc { display: block; position: sticky; top: calc(var(--header-h) + 32px); align-self: start; max-height: calc(100vh - var(--header-h) - 64px); overflow-y: auto; padding-right: 8px; }
}
.toc-label { font: 500 11px/1 var(--f-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--mute); margin-bottom: 18px; }
.toc ol { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--line-2); }
.toc li a {
  display: block; position: relative; padding: 7px 0 7px 16px; margin-left: -1px; border-left: 2px solid transparent;
  font-size: 14px; line-height: 1.4; color: var(--mute); transition: color .2s, border-color .2s;
}
.toc li.toc-h3 a { padding-left: 28px; font-size: 13.5px; }
.toc li a:hover { color: var(--ink); }
.toc li a.is-active { color: var(--ink); border-left-color: var(--green); font-weight: 500; }

/* long-form refinements on top of site.css .article */
.article > p:first-child { font-size: 1.12em; color: var(--ink); line-height: 1.65; }
.article h2, .article h3 { scroll-margin-top: calc(var(--header-h) + 24px); text-wrap: balance; }
.article h2:first-child, .article h3:first-child { margin-top: 0; }
.article strong { color: var(--ink); font-weight: 600; }
.article a:not(.btn) { color: var(--green-deep); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.article a:not(.btn):hover { text-decoration-thickness: 2px; }
.article .btn { margin: .4em 0 1.3em; text-decoration: none; }
.article ol { padding-left: 1.3em; margin: 0 0 1.3em; }
.article blockquote { position: relative; }
.article blockquote p { margin: 0 0 .6em; color: inherit; }
.article blockquote p:last-child { margin-bottom: 0; }
.article blockquote + blockquote { margin-top: -1em; }
.article hr { border: 0; height: 1px; margin: 2.6em 0; background: linear-gradient(90deg, var(--green), var(--line) 30%, transparent); }
.article figure { margin: 2.2em 0; }
.article figure img { height: auto; border: 1px solid var(--line); }
@media (min-width: 900px) { .article figure { margin-left: -40px; margin-right: -40px; } }

/* ---------- share + prev/next ---------- */
.art-foot { background: var(--paper); padding: 0 0 clamp(64px, 7vw, 96px); }
.art-foot .wrap { max-width: calc(760px + 2 * var(--gutter)); }
.art-share {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px;
  padding: 28px 0; border-top: 1px solid var(--line-2); border-bottom: 1px solid var(--line);
}
.art-share .link-arrow:hover svg { transform: translateX(-4px); }
.share-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.share-label { font: 500 11px/1 var(--f-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--mute); margin-right: 4px; }
.share-btn {
  display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 14px;
  border: 1px solid var(--line-2); border-radius: var(--r-sm); background: var(--paper);
  font: 600 14px/1 var(--f-body); color: var(--ink); transition: border-color .2s, color .2s, background .2s;
}
.share-btn svg { width: 16px; height: 16px; }
.share-btn:hover { border-color: var(--ink); }
.share-btn.is-copied { border-color: var(--green); color: var(--green-deep); background: var(--green-tint); }

.prev-next { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 32px; }
.pn {
  display: flex; flex-direction: column; gap: 10px; padding: 22px 22px 20px; border-radius: var(--r);
  border: 1px solid var(--line); background: var(--bg); transition: border-color .3s, transform .4s var(--ease), box-shadow .4s var(--ease);
}
.pn:hover { border-color: var(--line-2); transform: translateY(-3px); box-shadow: 0 20px 50px -28px rgba(11,18,15,.3); }
.pn--next { text-align: right; align-items: flex-end; }
.pn--empty { visibility: hidden; }
.pn-label { font: 500 11px/1 var(--f-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--green-deep); display: inline-flex; align-items: center; gap: 8px; }
.pn-label svg { width: 13px; height: 13px; }
.pn-title { font: 600 17px/1.3 var(--f-display); letter-spacing: -0.015em; color: var(--ink); }
.pn-date { font: 500 11px/1 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--mute); }
@media (max-width: 640px) { .prev-next { grid-template-columns: 1fr; } .pn--next { text-align: left; align-items: flex-start; } .pn--empty { display: none; } }

/* ---------- related ---------- */
.related { background: var(--bg); border-top: 1px solid var(--line); }
.related-head { display: flex; flex-direction: column; gap: 18px; margin-bottom: clamp(32px, 4vw, 52px); }
.related-head h2 { font-size: clamp(28px, 3.2vw, 44px); }
.related-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.related-grid--covers { gap: clamp(24px, 4vw, 56px); }
.related-cover h3 { font-size: 18px; line-height: 1.25; }
@media (max-width: 900px) { .related-grid { grid-template-columns: 1fr 1fr; } .related-grid > :nth-child(3) { display: none; } }
@media (max-width: 560px) {
  .related-grid { grid-template-columns: 1fr; }
  .related-grid > :nth-child(3) { display: flex; }
  .related-grid--covers { grid-template-columns: 1fr 1fr; gap: 20px; }
  .related-grid--covers > :nth-child(3) { display: none; }
  .related-cover h3 { font-size: 15px; }
}

/* ---------- final CTA band ---------- */
.art-cta { position: relative; overflow: hidden; padding: clamp(88px, 11vw, 150px) 0; }
.art-cta-bg { position: absolute; right: 0; top: 0; height: 100%; width: 70%; object-fit: cover; opacity: .6; }
.art-cta::before { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(90deg, var(--night) 30%, rgba(6,11,9,.55) 65%, rgba(6,11,9,.8)); }
.art-cta-inner { position: relative; z-index: 2; }
.art-cta h2 { color: #fff; margin: 20px 0 24px; font-size: clamp(36px, 4.8vw, 64px); }
.art-cta .lede { margin-bottom: 36px; }
.art-cta-btns { display: flex; flex-wrap: wrap; gap: 12px; }
@media (max-width: 900px) { .art-cta-bg { width: 100%; opacity: .3; } }

/* ---------- small screens ---------- */
@media (max-width: 760px) {
  .art-hero--story .art-hero-grid { grid-template-columns: 1fr; }
  .art-hero--story .art-cover { justify-self: start; max-width: 220px; order: -1; }
  .article { font-size: 17px; }
  .art-media { height: clamp(240px, 70vw, 420px); }
  .art-share { flex-direction: column; align-items: flex-start; }
}

/* screenshot mode */
.shot .read-progress span { transform: scaleX(.35); }

/* ============================================================
   Dark theme. Tokens carry most of it; these are the spots a token can't express:
   raised surfaces and shadows that read on black.
   ============================================================ */
[data-theme="dark"] main > section.dark { box-shadow: inset 0 1px 0 var(--night-line); }
[data-theme="dark"] .card:hover { box-shadow: 0 24px 60px -24px rgba(0,0,0,.8), 0 0 0 1px rgba(108,240,143,.14); }
[data-theme="dark"] .art-media { box-shadow: 0 30px 70px -40px rgba(0,0,0,.9), 0 0 0 1px var(--line); }
[data-theme="dark"] .art-cover .cover-img { box-shadow: 0 40px 80px -36px rgba(0,0,0,.9), 0 0 0 1px var(--line-2); }
[data-theme="dark"] .pn { background: #0f1915; }
[data-theme="dark"] .pn:hover { border-color: rgba(108,240,143,.35); box-shadow: 0 20px 50px -28px rgba(0,0,0,.85); }
[data-theme="dark"] .share-btn { background: transparent; }
[data-theme="dark"] .share-btn:hover { border-color: var(--green); }

/* ---------- split hero (WordPress posts, pn-news.php; Filip, 12 Nov 2026) ----------
   Title + dek + share on the left, the featured image on the right: the body starts within the first screen. */
.art-hero--split { padding: calc(var(--header-h) + clamp(24px, 3vw, 44px)) 0 clamp(32px, 4vw, 52px); }
.art-split { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(32px, 4.5vw, 64px); align-items: center; }
.art-split-text { display: flex; flex-direction: column; gap: 18px; min-width: 0; }
.art-hero--split h1 { margin: 0; max-width: 24ch; font-size: clamp(30px, 3.1vw, 44px); line-height: 1.12; letter-spacing: -0.025em; }
.art-hero--split .art-dek { margin: 0; max-width: 54ch; font-size: clamp(17px, 1.3vw, 19px); line-height: 1.55; }
.art-hero--split .share-row { padding-top: 4px; }
.art-hero--split .share-btn { min-height: 44px; }
.art-split-media { margin: 0; border-radius: var(--r); overflow: hidden; aspect-ratio: 16 / 10; background: var(--night-2); box-shadow: 0 30px 60px -30px rgba(11,18,15,.35); }
.art-split-media img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%; display: block; }
.art-hero--split.no-media .art-split { grid-template-columns: minmax(0, 1fr); }
@media (max-width: 900px) { .art-split { grid-template-columns: minmax(0, 1fr); } }
.art-hero--split ~ .art-main { padding-top: clamp(40px, 5vw, 64px); }

/* a list of "Label: text" items becomes a grid of small cards */
.article ul.is-cards { list-style: none; padding: 0; margin: 0 0 1.4em; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 12px; }
.article ul.is-cards li { margin: 0; padding: 16px 18px; border-radius: 10px; background: var(--bg); font-size: 16px; line-height: 1.5; }
.article ul.is-cards li strong:first-child { display: block; margin-bottom: 4px; }
[data-theme="dark"] .article ul.is-cards li { background: var(--raise, rgba(255,255,255,.04)); }
/* portrait featured image (e.g. a white paper cover): shown whole */
.art-split-media.is-tall { aspect-ratio: auto; background: transparent; justify-self: center; max-width: 100%; }
.art-split-media.is-tall img { width: auto; height: auto; max-width: 100%; max-height: min(560px, 70vh); object-fit: contain; }