/* ============================================================
   VideoDoc — article layer (loads AFTER style.css, reuses its tokens)
   Components for /articles/, article pages, /support/ and /design/.
   Same Node × Matrix brand: one blue accent, mono display, hairlines.
   ============================================================ */

/* ---------- page hero (hub + support) ---------- */
.pagehero { text-align: center; padding: 64px 0 8px; position: relative; }
.pagehero .halo {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: radial-gradient(circle at 50% 0%, rgba(11,132,227,.09), transparent 55%);
}
.pagehero h1 {
  font-size: clamp(30px, 5.4vw, 50px); line-height: 1.05;
  letter-spacing: -0.03em; color: var(--text); max-width: 780px; margin: 18px auto 0;
}
.pagehero .lede {
  margin: 18px auto 0; max-width: 600px;
  font-size: 16.5px; line-height: var(--lh-body); color: var(--text-secondary);
}

/* ---------- breadcrumbs (the ~/ signature) ---------- */
.crumbs {
  display: flex; align-items: center; flex-wrap: wrap; gap: 6px;
  font-family: var(--font-mono); font-size: 12.5px; color: var(--text-muted);
  padding: 22px 0 0;
}
.crumbs a { color: var(--text-muted); }
.crumbs a:hover { color: var(--text-accent); }
.crumbs .sep { color: var(--text-faint); }
.crumbs .here { color: var(--text-accent); font-weight: var(--fw-semibold); }
.crumbs .tilde { color: var(--text-accent); font-weight: var(--fw-bold); }

/* ---------- article shell ---------- */
.art { max-width: 780px; margin: 0 auto; padding: 0 0 20px; }
.art-head { padding: 30px 0 6px; }
.art-head h1 {
  font-size: clamp(28px, 4.6vw, 40px); line-height: 1.12;
  letter-spacing: -0.025em; color: var(--text);
}
.art-meta {
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px 16px;
  margin-top: 18px; font-family: var(--font-mono); font-size: 12.5px; color: var(--text-muted);
}
.art-meta .who { color: var(--text-secondary); font-weight: var(--fw-semibold); }
.art-meta .dotsep { color: var(--text-faint); }

.cat {
  display: inline-flex; align-items: center;
  font-family: var(--font-mono); font-size: 10.5px; font-weight: var(--fw-bold);
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-accent); background: var(--orange-wash);
  border: 1px solid var(--orange-line); border-radius: var(--radius-pill);
  padding: 4px 11px; white-space: nowrap;
}

/* ---------- the short answer (extractable, answer-first) ---------- */
.answer {
  margin: 28px 0 6px; padding: 20px 22px;
  background: var(--orange-wash); border: 1px solid var(--orange-line);
  border-radius: var(--radius-md);
}
.answer .lbl {
  display: block; font-family: var(--font-mono); font-size: 11px; font-weight: var(--fw-bold);
  letter-spacing: .14em; text-transform: uppercase; color: var(--text-accent);
  margin-bottom: 10px;
}
.answer p { margin: 0; font-size: 16px; line-height: 1.65; color: var(--text); }
.answer p + p { margin-top: 10px; }

/* ---------- prose ---------- */
.prose { padding: 10px 0 0; }
.prose p { margin: 0 0 20px; font-size: 16.5px; line-height: 1.75; color: var(--text-secondary); }
.prose > p:first-child { color: var(--text); }
.prose strong { color: var(--text); font-weight: var(--fw-semibold); }
.prose a { text-decoration: underline; text-underline-offset: 3px; }
.prose a:hover { color: var(--text-accent-lg); }

.prose h2 {
  display: flex; align-items: baseline; gap: 12px;
  font-size: clamp(21px, 3vw, 26px); letter-spacing: -0.02em; line-height: 1.25;
  color: var(--text); margin: 44px 0 16px; scroll-margin-top: 90px;
}
.prose h2::before {
  content: ""; width: 9px; height: 9px; border-radius: 50%; flex: none;
  background: var(--accent); box-shadow: 0 0 0 3px var(--orange-wash);
  position: relative; top: -2px;
}
.prose h3 {
  font-size: 18.5px; letter-spacing: -0.015em; color: var(--text);
  margin: 32px 0 12px; scroll-margin-top: 90px;
}

.prose ul, .prose ol { margin: 0 0 20px; padding-left: 24px; display: flex; flex-direction: column; gap: 9px; }
.prose li { font-size: 16px; line-height: 1.65; color: var(--text-secondary); }
.prose li::marker { color: var(--text-accent); font-family: var(--font-mono); font-weight: var(--fw-bold); }

.prose blockquote {
  margin: 0 0 20px; padding: 4px 0 4px 20px;
  border-left: 3px solid var(--accent);
  color: var(--text-secondary); font-size: 16.5px; line-height: 1.7;
}
.prose blockquote p:last-child { margin-bottom: 0; }

/* Inline code was white-space:nowrap, so one long identifier or path could
   push the whole page wider than the viewport. pre-wrap keeps the internal
   spacing a code span needs; overflow-wrap:anywhere lets an unbreakable
   token break rather than overflow, and shrinks min-content so the
   surrounding block can never be forced wide. */
.prose code {
  font-size: 14px; background: var(--surface-sunk);
  border: 1px solid var(--border); border-radius: 6px; padding: 2px 7px;
  color: var(--text);
  white-space: pre-wrap; overflow-wrap: anywhere;
}
/* Code blocks get their own surface. --ink-bg IS --bg in dark mode, so
   using it here made every block vanish into the page. --code-bg keeps a
   terminal-dark fill in both themes and --code-border carries the edge
   (3.34:1 against the dark page, 3.60:1 against the block) now that the
   drop shadow is black. */
.prose pre {
  margin: 0 0 20px; padding: 16px 18px; overflow-x: auto;
  background: var(--code-bg); color: var(--code-text);
  border: 1px solid var(--code-border); border-radius: 11px;
  font-family: var(--font-mono); font-size: 13px; line-height: 1.8;
  box-shadow: var(--shadow-md);
}
/* Block code keeps pre: long lines scroll inside the block, they never wrap. */
.prose pre code {
  background: none; border: 0; padding: 0; color: inherit;
  white-space: pre; overflow-wrap: normal;
}

.prose img {
  border: 1px solid var(--border); border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm); margin: 0 0 8px;
}
.prose figure { margin: 26px 0; }
.prose figcaption {
  font-family: var(--font-mono); font-size: 12px; color: var(--text-muted);
  margin-top: 10px; text-align: center;
}
.prose hr { border: 0; border-top: 1px solid var(--border); margin: 36px 0; }

.tablewrap {
  overflow-x: auto; margin: 0 0 22px;
  border: 1px solid var(--border); border-radius: var(--radius-md);
  background: var(--surface); box-shadow: var(--shadow-xs);
}
.prose table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 520px; }
.prose thead th {
  font-family: var(--font-mono); font-size: 11.5px; font-weight: var(--fw-bold);
  letter-spacing: .08em; text-transform: uppercase; color: var(--text-muted);
  text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--border-strong);
  background: var(--surface-sunk); white-space: nowrap;
}
.prose tbody td {
  padding: 12px 16px; border-bottom: 1px solid var(--border);
  color: var(--text-secondary); line-height: 1.5; vertical-align: top;
}
.prose tbody tr:last-child td { border-bottom: 0; }
.prose td.good { color: var(--green-deep); font-weight: var(--fw-semibold); }
.prose td.bad { color: var(--text-faint); }

/* ---------- callouts ---------- */
.callout {
  margin: 0 0 22px; padding: 16px 18px;
  background: var(--surface-sunk); border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.callout .lbl {
  display: block; font-family: var(--font-mono); font-size: 10.5px; font-weight: var(--fw-bold);
  letter-spacing: .13em; text-transform: uppercase; color: var(--text-accent);
  margin-bottom: 8px;
}
.callout p { margin: 0; font-size: 15px; line-height: 1.65; color: var(--text-secondary); }
.callout p + p { margin-top: 8px; }
.callout.tested { background: var(--green-wash); border-color: rgba(69,192,125,.4); }
.callout.tested .lbl { color: var(--green-deep); }

/* ---------- in-article CTA band ---------- */
/* Token overrides for this band (vivid CTA + ring) live in style.css
   next to .finalcta, so all three dark bands stay in step. */
.ctabox {
  position: relative; overflow: hidden; margin: 34px 0;
  background: var(--surface-dark); border-radius: var(--radius-lg);
  padding: 30px 28px; text-align: left;
  box-shadow: inset 0 0 0 1px var(--band-edge);
}
.ctabox .halo {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(circle at 12% 0%, rgba(63,169,245,.3), transparent 55%);
}
.ctabox > :not(.halo) { position: relative; }
.ctabox .k {
  font-family: var(--font-mono); font-size: 10.5px; font-weight: var(--fw-bold);
  letter-spacing: .14em; text-transform: uppercase; color: var(--orange-light);
}
.ctabox h3 { color: #fff; font-size: 21px; margin: 10px 0 8px; letter-spacing: -0.02em; }
.ctabox p { margin: 0 0 18px; font-size: 14.5px; line-height: 1.6; color: #9DAAC0; max-width: 520px; }
.ctabox .row { display: flex; gap: 10px; flex-wrap: wrap; }

/* ---------- related articles ---------- */
.related { margin: 44px 0 0; }
.related .rk {
  font-family: var(--font-mono); font-size: 11px; font-weight: var(--fw-bold);
  letter-spacing: .14em; text-transform: uppercase; color: var(--text-muted);
  margin-bottom: 16px;
}
.relgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }

/* ---------- article cards (hub + related) ---------- */
.artcard {
  display: flex; flex-direction: column; gap: 10px;
  border: 1px solid var(--border); border-radius: 14px;
  background: var(--surface); padding: 20px; box-shadow: var(--shadow-xs);
  color: var(--text-secondary);
  transition: transform var(--dur-base) var(--ease-out), border-color var(--dur-base), box-shadow var(--dur-base);
}
.artcard:hover {
  border-color: var(--accent); transform: translateY(-2px);
  box-shadow: 0 16px 36px -26px rgba(11,132,227,.6);
}
.artcard .t {
  font-family: var(--font-mono); font-weight: var(--fw-bold); font-size: 16.5px;
  line-height: 1.35; color: var(--text); letter-spacing: -0.015em;
}
.artcard:hover .t { color: var(--text-accent); }
.artcard p { margin: 0; font-size: 13.5px; line-height: 1.55; color: var(--text-secondary); flex: 1; }
.artcard .meta {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 11.5px; color: var(--text-faint);
}
.artcard .meta .go { margin-left: auto; color: var(--text-accent); font-weight: var(--fw-bold); }

.artgrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 26px; }
.artsec { margin-top: 52px; }
.artsec .sk {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--font-mono); font-size: 12px; font-weight: var(--fw-bold);
  letter-spacing: .14em; text-transform: uppercase; color: var(--text-accent);
}
.artsec .sk::after { content: ""; flex: 1; height: 1px; background: var(--border); }

/* ---------- author bio ---------- */
.bio {
  display: flex; gap: 16px; align-items: flex-start;
  margin: 40px 0 0; padding: 20px 22px;
  border: 1px solid var(--border); border-radius: var(--radius-md);
  background: var(--surface); box-shadow: var(--shadow-xs);
}
.bio .avatar {
  width: 44px; height: 44px; border-radius: 12px; flex: none;
  background: var(--accent); display: inline-flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 18px -8px rgba(11,132,227,.7);
}
.bio .avatar img { width: 24px; height: 24px; border: 0; border-radius: 0; box-shadow: none; margin: 0; }
.bio .name { font-family: var(--font-mono); font-weight: var(--fw-bold); font-size: 15px; color: var(--text); }
.bio p { margin: 6px 0 0; font-size: 13.5px; line-height: 1.6; color: var(--text-secondary); }
.bio a { text-decoration: underline; text-underline-offset: 2px; }

/* ---------- support page bits ---------- */
.supgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 34px 0 8px; }
.supcard {
  border: 1px solid var(--border); border-radius: 14px;
  background: var(--surface); padding: 22px; box-shadow: var(--shadow-xs);
  display: flex; flex-direction: column; gap: 8px;
}
.supcard .fk {
  font-family: var(--font-mono); font-size: 11px; font-weight: var(--fw-bold);
  letter-spacing: .12em; text-transform: uppercase; color: var(--text-accent);
}
.supcard h3 { font-size: 17px; color: var(--text); }
.supcard p { margin: 0; font-size: 14px; line-height: 1.6; color: var(--text-secondary); flex: 1; }
.supcard .btn { align-self: flex-start; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .artgrid, .supgrid { grid-template-columns: 1fr 1fr; }
  .relgrid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .artgrid, .supgrid { grid-template-columns: 1fr; }
  .pagehero { padding-top: 44px; }
  .prose p { font-size: 16px; }
  .ctabox { padding: 24px 20px; }
}

/* ---- screenshots in an article -------------------------------------------
   A real picture of the thing beats any description of it, but only if it is
   readable. The frame keeps it off the page background so a light screenshot
   on a light page still reads as a picture and not as part of the layout. */
.prose .shot {
  margin: 26px 0;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface-sunk);
  padding: 10px;
  box-shadow: var(--shadow-sm);
}
.prose .shot img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--border);
}
.prose .shot figcaption {
  margin-top: 10px;
  padding: 0 4px 2px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--text-muted);
}

/* ---- the numbers ---------------------------------------------------------
   These are the whole argument, so they get to be the biggest thing on the
   page. They count up once when scrolled into view; without JS, or with
   reduced motion asked for, the final number is simply already there. */
.prose .statgrid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin: 26px 0;
}
.prose .stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px 16px;
  box-shadow: var(--shadow-xs);
}
.prose .stat .n {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(24px, 4.2vw, 32px);
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.prose .stat .l {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--text-muted);
}