/* ==========================================================================
   MetalSharp 1.1.0: graphics routes (landing page) and project pages.
   Loaded after styles.css. Restrained by design: hairlines, one accent per
   page, tabular numbers, no glow or motion beyond a hover state.
   ========================================================================== */

:root {
  --pj-accent: #3a9cd2;        /* chart "after" / single series (validated vs --ink-2) */
  --pj-before: #c07a4a;        /* chart "before" series (validated pair with --pj-accent) */
  --pj-panel: rgba(255, 255, 255, 0.018);
  --pj-panel-strong: rgba(255, 255, 255, 0.035);
  --pj-hair: rgba(170, 190, 255, 0.12);
  --pj-hair-strong: rgba(170, 190, 255, 0.22);
}

.project-page--wine { --pj-tint: var(--cyan); }
.project-page--gl { --pj-tint: #ff8fc7; }
.project-page--vk { --pj-tint: var(--violet); }

/* ── Shared atoms ─────────────────────────────────────────────────────────── */

.pj-label {
  display: block;
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.pj-num { font-variant-numeric: tabular-nums; }

/* ==========================================================================
   Landing page: graphics routes
   ========================================================================== */

.rt-section { padding-block: var(--space-6); background: none; }

.rt-runtimes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: var(--space-4);
  border: 1px solid var(--pj-hair);
  border-radius: var(--radius-m);
  background: var(--pj-hair);
  overflow: hidden;
}

.rt-runtime {
  display: grid;
  gap: 0.9rem;
  align-content: start;
  padding: clamp(1.25rem, 2.4vw, 1.75rem);
  background: var(--ink-1);
}

.rt-runtime-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 0.5rem 1rem; }
.rt-runtime h3 { font-family: var(--font-display); font-size: 1.35rem; font-weight: 650; letter-spacing: -0.02em; }
.rt-runtime p { color: var(--text-soft); font-size: 0.98rem; line-height: 1.55; }
.rt-runtime p a { color: var(--text); text-decoration: underline; text-decoration-color: var(--pj-hair-strong); text-underline-offset: 3px; }
.rt-runtime p a:hover { text-decoration-color: currentColor; }

.rt-specs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.75rem; padding-top: 0.9rem; border-top: 1px solid var(--pj-hair); }
.rt-specs dt { color: var(--dim); font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase; }
.rt-specs dd { margin-top: 0.2rem; color: var(--text); font-family: var(--font-mono); font-size: 0.86rem; }

.rt-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--pj-hair-strong);
  border-radius: 999px;
  color: var(--text-soft);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  white-space: nowrap;
}

/* Flow diagram: API → route → (Vulkan) → Metal */
.rt-flow {
  margin-top: var(--space-4);
  padding: clamp(1rem, 2.4vw, 1.75rem);
  border: 1px solid var(--pj-hair);
  border-radius: var(--radius-m);
  background: var(--ink-1);
}

.rt-flow-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem 1.5rem; margin-bottom: 1rem; }
.rt-flow-head p { color: var(--muted); font-size: 0.92rem; }
.rt-flow-scroll { overflow-x: auto; }
.rt-flow svg { display: block; width: 100%; min-width: 640px; height: auto; }

.rt-col-label { fill: var(--dim); font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; }
.rt-edge { fill: none; stroke: var(--pj-hair-strong); stroke-width: 1.25; transition: stroke 0.2s, stroke-width 0.2s, opacity 0.2s; }
.rt-node rect { fill: var(--ink-2); stroke: var(--pj-hair-strong); stroke-width: 1; transition: stroke 0.2s, fill 0.2s, opacity 0.2s; }
.rt-node text { fill: var(--text-soft); font-family: var(--font-body); font-size: 13px; font-weight: 500; text-anchor: middle; dominant-baseline: central; transition: fill 0.2s, opacity 0.2s; }
.rt-node .rt-node-sub { fill: var(--dim); font-family: var(--font-mono); font-size: 10px; font-weight: 400; }
.rt-node--route rect { fill: var(--ink-3); }
.rt-node--route text { fill: var(--text); font-weight: 600; }
.rt-node--metal rect { fill: var(--ink-3); stroke: var(--text-soft); }
.rt-node--metal text { fill: var(--text); font-family: var(--font-mono); font-size: 12px; font-weight: 500; letter-spacing: 0.3em; }

/* Focus a route: dim the rest, light its path. */
.rt-flow[data-focus] .rt-edge { opacity: 0.25; }
.rt-flow[data-focus] .rt-node:not(.rt-node--metal) { opacity: 0.35; }
.rt-flow[data-focus="mullion"] [data-r~="mullion"],
.rt-flow[data-focus="vkd3d"] [data-r~="vkd3d"],
.rt-flow[data-focus="d3dmetal"] [data-r~="d3dmetal"],
.rt-flow[data-focus="opengl"] [data-r~="opengl"] { opacity: 1; }
.rt-flow[data-focus="mullion"] .rt-edge[data-r~="mullion"],
.rt-flow[data-focus="vkd3d"] .rt-edge[data-r~="vkd3d"],
.rt-flow[data-focus="d3dmetal"] .rt-edge[data-r~="d3dmetal"],
.rt-flow[data-focus="opengl"] .rt-edge[data-r~="opengl"] { stroke: var(--text); stroke-width: 1.75; }
.rt-flow[data-focus="mullion"] .rt-node[data-r~="mullion"] rect,
.rt-flow[data-focus="vkd3d"] .rt-node[data-r~="vkd3d"] rect,
.rt-flow[data-focus="d3dmetal"] .rt-node[data-r~="d3dmetal"] rect,
.rt-flow[data-focus="opengl"] .rt-node[data-r~="opengl"] rect { stroke: var(--text); }

.rt-legend { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }
.rt-legend button {
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--pj-hair-strong);
  border-radius: 999px;
  background: transparent;
  color: var(--text-soft);
  font: 500 0.82rem var(--font-body);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.rt-legend button:hover,
.rt-legend button[aria-pressed="true"] { color: var(--text); border-color: var(--text-soft); background: var(--pj-panel-strong); }

/* Route matrix */
.rt-matrix-wrap {
  margin-top: var(--space-3);
  border: 1px solid var(--pj-hair);
  border-radius: var(--radius-m);
  overflow-x: auto;
  background: var(--ink-1);
}

.rt-matrix { width: 100%; min-width: 760px; border-collapse: collapse; font-size: 0.92rem; }
.rt-matrix caption { padding: 1rem 1.25rem 0; color: var(--muted); font-size: 0.85rem; text-align: left; }
.rt-matrix th,
.rt-matrix td { padding: 0.95rem 1rem; border-bottom: 1px solid var(--pj-hair); text-align: center; vertical-align: middle; }
.rt-matrix thead th { color: var(--dim); font-family: var(--font-mono); font-size: 0.68rem; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; }
.rt-matrix thead .rt-group { padding-bottom: 0.2rem; border-bottom: 0; color: var(--muted); }
.rt-matrix thead .rt-group span { display: block; padding-bottom: 0.35rem; border-bottom: 1px solid var(--pj-hair-strong); }
.rt-matrix tbody tr:last-child > * { border-bottom: 0; }
.rt-matrix tbody tr { transition: background 0.2s; }
.rt-matrix tbody tr:hover,
.rt-matrix tbody tr:focus-within,
.rt-matrix tbody tr.is-focus { background: var(--pj-panel-strong); }
.rt-matrix th[scope="row"] { text-align: left; }
.rt-matrix th[scope="row"] strong { display: block; color: var(--text); font-family: var(--font-display); font-size: 1.05rem; font-weight: 650; letter-spacing: -0.01em; }
.rt-matrix th[scope="row"] span { display: block; margin-top: 0.15rem; color: var(--muted); font-size: 0.82rem; font-weight: 400; }
.rt-matrix th[scope="row"] a { color: inherit; }
.rt-matrix .rt-version { color: var(--text-soft); font-family: var(--font-mono); font-size: 0.78rem; text-align: left; white-space: nowrap; }
.rt-matrix .rt-version small { display: block; color: var(--dim); font-size: 0.72rem; }
.rt-matrix .rt-sep { border-left: 1px solid var(--pj-hair); }

.rt-yes,
.rt-no { display: inline-block; width: 10px; height: 10px; border-radius: 50%; vertical-align: middle; }
.rt-yes { background: var(--text); }
.rt-no { width: 12px; height: 1px; border-radius: 0; background: var(--dim); }
.rt-yes--part { background: transparent; box-shadow: inset 0 0 0 1.5px var(--text); }

.rt-key { display: flex; flex-wrap: wrap; gap: 0.5rem 1.4rem; padding: 0.85rem 1.25rem; border-top: 1px solid var(--pj-hair); color: var(--muted); font-size: 0.8rem; }
.rt-key span { display: inline-flex; align-items: center; gap: 0.5rem; }

.rt-notes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-3); margin-top: var(--space-4); }
.rt-note { padding-top: 1rem; border-top: 1px solid var(--pj-hair-strong); }
.rt-note h3 { color: var(--text); font-size: 1rem; font-weight: 600; }
.rt-note p { margin-top: 0.4rem; color: var(--muted); font-size: 0.92rem; line-height: 1.55; }
.rt-note a { color: var(--text-soft); text-decoration: underline; text-decoration-color: var(--pj-hair-strong); text-underline-offset: 3px; }

@media (max-width: 860px) {
  .rt-runtimes { grid-template-columns: minmax(0, 1fr); }
  .rt-notes { grid-template-columns: minmax(0, 1fr); }
}

/* ==========================================================================
   Project pages
   ========================================================================== */

.pj-hero { padding-bottom: var(--space-4); }

.pj-specs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  margin-top: var(--space-4);
  border: 1px solid var(--pj-hair);
  border-radius: var(--radius-m);
  background: var(--pj-hair);
  overflow: hidden;
}
.pj-specs > div { padding: 1.1rem 1.25rem; background: var(--ink-1); }
.pj-specs dt { color: var(--dim); font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; }
.pj-specs dd { margin-top: 0.35rem; color: var(--text); font-family: var(--font-display); font-size: 1.45rem; font-weight: 650; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.pj-specs dd small { display: block; margin-top: 0.15rem; color: var(--muted); font-family: var(--font-body); font-size: 0.8rem; font-weight: 400; letter-spacing: 0; }

/* In-page navigation */
.pj-toc {
  position: sticky;
  top: var(--nav-h);
  z-index: 20;
  border-block: 1px solid var(--pj-hair);
  background: rgba(5, 6, 10, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.pj-toc ul { display: flex; gap: 0.25rem; overflow-x: auto; scrollbar-width: none; list-style: none; }
.pj-toc ul::-webkit-scrollbar { display: none; }
.pj-toc a {
  display: block;
  padding: 0.8rem 0.85rem;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 500;
  white-space: nowrap;
  transition: color 0.2s, border-color 0.2s;
}
.pj-toc a:hover { color: var(--text); }
.pj-toc a[aria-current="true"] { color: var(--text); border-bottom-color: var(--pj-tint, var(--cyan)); }
.pj-toc .container { padding-inline: calc(var(--gutter) - 0.85rem); }

.pj-section { padding-block: clamp(3.5rem, 7vw, 5.5rem); border-top: 1px solid var(--pj-hair); scroll-margin-top: calc(var(--nav-h) + 3rem); }
.pj-section:first-of-type { border-top: 0; }
.pj-head { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: var(--space-2) var(--space-5); align-items: end; margin-bottom: var(--space-4); }
.pj-head h2 { margin-top: 0.6rem; font-family: var(--font-display); font-size: clamp(1.8rem, 3.6vw, 2.6rem); font-weight: 650; line-height: 1.05; letter-spacing: -0.03em; }
.pj-head p { color: var(--text-soft); font-size: 1.04rem; line-height: 1.6; }
.pj-head p a, .pj-prose a { color: var(--text); text-decoration: underline; text-decoration-color: var(--pj-hair-strong); text-underline-offset: 3px; }
.pj-head p a:hover, .pj-prose a:hover { text-decoration-color: currentColor; }
.pj-head code, .pj-prose code, .pj-card code, .pj-step code, .pj-table code {
  padding: 0.08em 0.38em;
  border: 1px solid var(--pj-hair);
  border-radius: 6px;
  background: var(--pj-panel-strong);
  color: var(--steel);
  font-family: var(--font-mono);
  font-size: 0.86em;
}

.pj-prose { max-width: 46rem; color: var(--text-soft); line-height: 1.65; }
.pj-prose > * + * { margin-top: 1em; }
.pj-prose strong { color: var(--text); font-weight: 600; }

/* Architecture diagram */
.pj-diagram {
  padding: clamp(1rem, 2.4vw, 1.75rem);
  border: 1px solid var(--pj-hair);
  border-radius: var(--radius-m);
  background: var(--ink-1);
}
.pj-diagram-scroll { overflow-x: auto; }
.pj-diagram svg { display: block; width: 100%; min-width: 620px; height: auto; }
.pj-diagram figcaption { margin-top: 1rem; color: var(--muted); font-size: 0.86rem; line-height: 1.55; }
.dg-label { fill: var(--dim); font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; }
.dg-edge { fill: none; stroke: var(--pj-hair-strong); stroke-width: 1.25; }
.dg-edge--accent { stroke: var(--text-soft); }
.dg-box { fill: var(--ink-2); stroke: var(--pj-hair-strong); stroke-width: 1; }
.dg-box--strong { fill: var(--ink-3); stroke: var(--text-soft); }
.dg-box--group { fill: none; stroke: var(--pj-hair); stroke-dasharray: none; }
.dg-box--metal { fill: #e9edf7; stroke: none; }
.dg-text { fill: var(--text); font-family: var(--font-body); font-size: 13px; font-weight: 600; text-anchor: middle; dominant-baseline: central; }
.dg-sub { fill: var(--muted); font-family: var(--font-mono); font-size: 10px; text-anchor: middle; dominant-baseline: central; }
.dg-text--metal { fill: var(--ink-0); font-family: var(--font-mono); font-size: 12px; font-weight: 500; letter-spacing: 0.3em; }
.dg-group-label { fill: var(--muted); font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; }

/* Cards */
.pj-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1px; border: 1px solid var(--pj-hair); border-radius: var(--radius-m); background: var(--pj-hair); overflow: hidden; }
.pj-card { padding: 1.35rem 1.4rem 1.5rem; background: var(--ink-1); }
.pj-card .pj-label { margin-bottom: 0.7rem; }
.pj-card h3 { color: var(--text); font-size: 1.05rem; font-weight: 600; letter-spacing: -0.01em; }
.pj-card p { margin-top: 0.45rem; color: var(--muted); font-size: 0.93rem; line-height: 1.55; }
.pj-card ul { margin-top: 0.6rem; padding-left: 1.1rem; color: var(--muted); font-size: 0.92rem; line-height: 1.55; }
.pj-card li + li { margin-top: 0.3rem; }
.pj-card li::marker { color: var(--dim); }
.pj-card strong { color: var(--text-soft); font-weight: 600; }

/* Two-column comparison */
.pj-compare { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; border: 1px solid var(--pj-hair); border-radius: var(--radius-m); background: var(--pj-hair); overflow: hidden; }
.pj-compare > div { padding: 1.5rem; background: var(--ink-1); }
.pj-compare h3 { font-family: var(--font-display); font-size: 1.3rem; font-weight: 650; letter-spacing: -0.02em; }
.pj-compare h3 + p { margin-top: 0.25rem; color: var(--muted); font-family: var(--font-mono); font-size: 0.8rem; }
.pj-compare dl { display: grid; margin-top: 1rem; }
.pj-compare dl > div { display: grid; grid-template-columns: 8.5rem minmax(0, 1fr); gap: 1rem; padding-block: 0.6rem; border-top: 1px solid var(--pj-hair); }
.pj-compare dt { color: var(--dim); font-size: 0.84rem; }
.pj-compare dd { color: var(--text-soft); font-size: 0.92rem; line-height: 1.5; }

/* Version timeline */
.pj-timeline { display: grid; grid-template-columns: repeat(var(--steps, 3), minmax(0, 1fr)); list-style: none; }
.pj-timeline li { position: relative; padding: 1.5rem 1.25rem 0 0; border-top: 1px solid var(--pj-hair-strong); }
.pj-timeline li::before { content: ""; position: absolute; top: -5px; left: 0; width: 9px; height: 9px; border-radius: 50%; background: var(--ink-0); box-shadow: inset 0 0 0 1.5px var(--text-soft); }
.pj-timeline li.is-current::before { background: var(--text); box-shadow: 0 0 0 3px var(--ink-0); }
.pj-timeline .pj-ver { color: var(--text); font-family: var(--font-display); font-size: 1.4rem; font-weight: 650; letter-spacing: -0.02em; }
.pj-timeline .pj-ver small { margin-left: 0.4rem; color: var(--dim); font-family: var(--font-mono); font-size: 0.72rem; font-weight: 400; letter-spacing: 0; }
.pj-timeline p { margin-top: 0.45rem; color: var(--muted); font-size: 0.92rem; line-height: 1.55; }
.pj-timeline a { color: var(--text-soft); }

/* Bar charts (HTML; values labeled at the tip, a table view sits under each) */
.pj-chart { padding: clamp(1.1rem, 2.4vw, 1.6rem); border: 1px solid var(--pj-hair); border-radius: var(--radius-m); background: var(--ink-2); }
.pj-chart + .pj-chart { margin-top: var(--space-3); }
.pj-chart-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 0.5rem 1.5rem; margin-bottom: 1.2rem; }
.pj-chart-head h3 { color: var(--text); font-size: 1rem; font-weight: 600; }
.pj-chart-head p { margin-top: 0.2rem; color: var(--muted); font-size: 0.85rem; }
.pj-chart-legend { display: flex; flex-wrap: wrap; gap: 0.4rem 1rem; color: var(--text-soft); font-size: 0.8rem; list-style: none; }
.pj-chart-legend li { display: inline-flex; align-items: center; gap: 0.45rem; }
.pj-chart-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 3px; background: var(--pj-accent); }
.pj-chart-legend i.is-before { background: var(--pj-before); }

.pj-bars { display: grid; gap: 0.95rem; list-style: none; }
.pj-bar { display: grid; grid-template-columns: minmax(9rem, 13rem) minmax(0, 1fr); gap: 0.4rem 1rem; align-items: center; }
.pj-bar-label { color: var(--text-soft); font-size: 0.88rem; line-height: 1.3; }
.pj-bar-label small { display: block; color: var(--dim); font-family: var(--font-mono); font-size: 0.72rem; }
.pj-bar-tracks { display: grid; gap: 4px; }
.pj-track { position: relative; display: flex; align-items: center; gap: 0.6rem; min-height: 16px; border-left: 1px solid var(--pj-hair-strong); }
.pj-fill {
  position: relative;
  flex: none;
  width: var(--w);
  min-width: 3px;
  height: 14px;
  border-radius: 0 4px 4px 0;
  background: var(--pj-accent);
  outline: none;
}
.pj-fill.is-before { background: var(--pj-before); }
.pj-value { color: var(--text); font-family: var(--font-mono); font-size: 0.78rem; white-space: nowrap; font-variant-numeric: tabular-nums; }
.pj-value small { color: var(--dim); font-size: 0.72rem; }
.pj-fill[data-tip]:hover::after,
.pj-fill[data-tip]:focus-visible::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: min(100%, 2rem);
  z-index: 3;
  padding: 0.4rem 0.6rem;
  border: 1px solid var(--pj-hair-strong);
  border-radius: 8px;
  background: var(--ink-0);
  color: var(--text);
  font: 400 0.76rem/1.3 var(--font-mono);
  white-space: nowrap;
  pointer-events: none;
}
.pj-fill[data-tip]:focus-visible { box-shadow: 0 0 0 2px var(--ink-2), 0 0 0 3px var(--text); }

.pj-axis { display: grid; grid-template-columns: minmax(9rem, 13rem) minmax(0, 1fr); gap: 1rem; margin-top: 0.6rem; }
.pj-axis div { display: flex; justify-content: space-between; color: var(--dim); font-family: var(--font-mono); font-size: 0.7rem; }

.pj-chart details { margin-top: 1.1rem; border-top: 1px solid var(--pj-hair); padding-top: 0.8rem; }
.pj-chart summary { color: var(--muted); font-size: 0.8rem; cursor: pointer; }
.pj-chart summary:hover { color: var(--text); }

.pj-table { width: 100%; margin-top: 0.8rem; border-collapse: collapse; font-size: 0.86rem; }
.pj-table th, .pj-table td { padding: 0.55rem 0.75rem; border-bottom: 1px solid var(--pj-hair); text-align: left; }
.pj-table th { color: var(--dim); font-family: var(--font-mono); font-size: 0.68rem; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; }
.pj-table td { color: var(--text-soft); font-variant-numeric: tabular-nums; }
.pj-table td:first-child { color: var(--text); }
.pj-table-wrap { overflow-x: auto; border: 1px solid var(--pj-hair); border-radius: var(--radius-m); background: var(--ink-1); }
.pj-table-wrap .pj-table { margin-top: 0; }
.pj-table-wrap .pj-table tr:last-child td { border-bottom: 0; }

/* Big number row */
.pj-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: var(--space-3); margin-bottom: var(--space-4); }
.pj-stat { padding-top: 0.9rem; border-top: 1px solid var(--pj-hair-strong); }
.pj-stat strong { display: block; color: var(--text); font-family: var(--font-display); font-size: clamp(1.9rem, 3.4vw, 2.5rem); font-weight: 650; line-height: 1; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.pj-stat span { display: block; margin-top: 0.5rem; color: var(--muted); font-size: 0.88rem; line-height: 1.5; }

/* Steps */
.pj-steps { display: grid; gap: var(--space-3); list-style: none; counter-reset: pj-step; }
.pj-step { display: grid; grid-template-columns: 2.4rem minmax(0, 1fr); gap: 1rem; counter-increment: pj-step; }
.pj-step::before {
  content: counter(pj-step, decimal-leading-zero);
  padding-top: 0.15rem;
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}
.pj-step h3 { color: var(--text); font-size: 1rem; font-weight: 600; }
.pj-step p { margin-top: 0.35rem; color: var(--muted); font-size: 0.93rem; line-height: 1.55; }
.pj-step .code-block { margin-top: 0.7rem; }
.pj-step .code-block pre { margin: 0; padding: 0.9rem 5rem 0.9rem 1rem; border: 1px solid var(--pj-hair); border-radius: var(--radius-s); background: var(--ink-1); overflow-x: auto; }
.pj-step .code-block code { color: var(--steel); font-family: var(--font-mono); font-size: 0.84rem; }

.pj-switches { display: grid; gap: 0; margin-top: var(--space-3); border: 1px solid var(--pj-hair); border-radius: var(--radius-m); overflow: hidden; }
.pj-switches > div { display: grid; grid-template-columns: minmax(12rem, 18rem) minmax(0, 1fr); gap: 1rem; padding: 0.8rem 1.1rem; border-top: 1px solid var(--pj-hair); background: var(--ink-1); }
.pj-switches > div:first-child { border-top: 0; }
.pj-switches dt code { color: var(--text); font-family: var(--font-mono); font-size: 0.82rem; }
.pj-switches dd { color: var(--muted); font-size: 0.9rem; line-height: 1.5; }

/* Links */
.pj-links { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1px; border: 1px solid var(--pj-hair); border-radius: var(--radius-m); background: var(--pj-hair); overflow: hidden; list-style: none; }
.pj-links a { display: grid; gap: 0.35rem; height: 100%; padding: 1.2rem 1.3rem; background: var(--ink-1); transition: background 0.2s; }
.pj-links a:hover { background: var(--ink-2); }
.pj-links strong { display: flex; justify-content: space-between; gap: 1rem; color: var(--text); font-size: 0.98rem; font-weight: 600; }
.pj-links strong::after { content: "↗"; color: var(--dim); font-weight: 400; }
.pj-links span { color: var(--muted); font-size: 0.88rem; line-height: 1.5; }
.pj-license { margin-top: var(--space-3); color: var(--dim); font-size: 0.85rem; line-height: 1.6; }

@media (max-width: 860px) {
  .pj-head { grid-template-columns: minmax(0, 1fr); align-items: start; }
  .pj-compare { grid-template-columns: minmax(0, 1fr); }
  .pj-timeline { grid-template-columns: minmax(0, 1fr); }
  .pj-timeline li { padding: 0 0 1.5rem 1.5rem; border-top: 0; border-left: 1px solid var(--pj-hair-strong); }
  .pj-timeline li::before { top: 0.35rem; left: -5px; }
  .pj-bar, .pj-axis { grid-template-columns: minmax(0, 1fr); }
  .pj-axis > span { display: none; }
  .pj-compare dl > div { grid-template-columns: minmax(0, 1fr); gap: 0.2rem; }
  .pj-switches > div { grid-template-columns: minmax(0, 1fr); gap: 0.3rem; }
  .rt-specs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  .rt-edge, .rt-node rect, .rt-node text, .rt-matrix tbody tr { transition: none; }
}

.rt-specs dd, .pj-specs dd, .pj-compare dd, .pj-switches dd { margin: 0; }
.pj-links, .pj-steps, .pj-bars, .pj-timeline, .pj-chart-legend, .pj-toc ul { margin: 0; padding: 0; }
.pj-links { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.pj-links a, .pj-links a:hover { text-decoration: none; }
.rt-matrix th[scope="row"] a { text-decoration: none; }
.rt-matrix th[scope="row"] a:hover { text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 860px) { .pj-links { grid-template-columns: minmax(0, 1fr); } }

/* MetalSharp Wine's own icon (the full app icon, background cut out) in its hero. */
.project-page--wine .docs-hero .container::after {
  /* the icon over a soft wine glow that fades out well before the box edge */
  background:
    url("assets/brand/metalsharp-wine.png") center / contain no-repeat,
    radial-gradient(closest-side at 52% 56%, rgba(150, 30, 60, 0.22), rgba(150, 30, 60, 0.08) 55%, transparent 100%);
  opacity: 0.92;
  transform: translateY(-50%) rotate(-4deg);
  filter: none;
  -webkit-mask: linear-gradient(200deg, #000 60%, transparent 100%);
  mask: linear-gradient(200deg, #000 60%, transparent 100%);
}
.rt-flow, .pj-diagram, .pj-chart { margin: 0; min-width: 0; }
.rt-flow-scroll, .pj-diagram-scroll, .rt-matrix-wrap, .pj-table-wrap { max-width: 100%; }
.rt-matrix-wrap, .pj-table-wrap, .rt-flow-scroll, .pj-diagram-scroll { position: relative; }
/* Bars scale to the track minus room for the value label, so the longest label never overflows. */
.pj-track { padding-right: 4.2rem; }
.pj-fill { width: var(--w); max-width: 100%; }
.pj-value { margin-right: -4.2rem; }
.pj-axis div { margin-right: 4.2rem; }
.pj-toc a, .pj-toc a:hover { text-decoration: none; }

/* ── Routes: quiet color ──────────────────────────────────────────────────
   One accent per route (the brief's route colors), used at low strength:
   tinted wires, a dot beside each name, a faint wash behind the section. */
.rt-section {
  --r-mullion: #5fe1ff;
  --r-vkd3d: #9b7bff;
  --r-d3dmetal: #c9d2e3;
  --r-opengl: #ff8fc7;
  background:
    radial-gradient(45% 35% at 8% 18%, rgba(61, 123, 255, 0.05), transparent 70%),
    radial-gradient(40% 35% at 92% 62%, rgba(155, 123, 255, 0.045), transparent 70%);
}

/* spectrum hairline on the panels */
.rt-runtimes, .rt-flow, .rt-matrix-wrap { position: relative; }
.rt-runtimes::before, .rt-flow::before, .rt-matrix-wrap::before {
  content: "";
  position: absolute;
  inset: 0 12% auto;
  z-index: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--blue) 50%, var(--violet), transparent);
  opacity: 0.45;
  pointer-events: none;
}
.rt-flow { background: radial-gradient(60% 80% at 92% 50%, rgba(95, 225, 255, 0.05), transparent 70%), var(--ink-1); }

/* runtime cards: a short accent bar */
.rt-runtime h3::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 0.6rem;
  border-radius: 50%;
  vertical-align: 0.15em;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(95, 225, 255, 0.45);
}
.rt-runtime + .rt-runtime h3::before { background: var(--violet); box-shadow: 0 0 10px rgba(155, 123, 255, 0.45); }

/* wires take their route's color, softly */
.rt-edge[data-r~="mullion"] { stroke: color-mix(in srgb, var(--r-mullion) 38%, transparent); }
.rt-edge[data-r~="vkd3d"] { stroke: color-mix(in srgb, var(--r-vkd3d) 38%, transparent); }
.rt-edge[data-r~="d3dmetal"] { stroke: color-mix(in srgb, var(--r-d3dmetal) 34%, transparent); }
.rt-edge[data-r~="opengl"] { stroke: color-mix(in srgb, var(--r-opengl) 38%, transparent); }
.rt-flow[data-focus="mullion"] .rt-edge[data-r~="mullion"] { stroke: var(--r-mullion); }
.rt-flow[data-focus="vkd3d"] .rt-edge[data-r~="vkd3d"] { stroke: var(--r-vkd3d); }
.rt-flow[data-focus="d3dmetal"] .rt-edge[data-r~="d3dmetal"] { stroke: var(--r-d3dmetal); }
.rt-flow[data-focus="opengl"] .rt-edge[data-r~="opengl"] { stroke: var(--r-opengl); }
.rt-flow[data-focus="mullion"] .rt-node--route[data-r~="mullion"] rect { stroke: var(--r-mullion); }
.rt-flow[data-focus="vkd3d"] .rt-node--route[data-r~="vkd3d"] rect { stroke: var(--r-vkd3d); }
.rt-flow[data-focus="d3dmetal"] .rt-node--route[data-r~="d3dmetal"] rect { stroke: var(--r-d3dmetal); }
.rt-flow[data-focus="opengl"] .rt-node--route[data-r~="opengl"] rect { stroke: var(--r-opengl); }
.rt-flow[data-focus] .rt-edge { transition: stroke 0.25s, opacity 0.25s; }

/* route boxes: a thin left accent; the Metal block a soft glow */
.rt-node--route[data-r~="mullion"] { --rc: var(--r-mullion); }
.rt-node--route[data-r~="vkd3d"] { --rc: var(--r-vkd3d); }
.rt-node--route[data-r~="d3dmetal"] { --rc: var(--r-d3dmetal); }
.rt-node--route[data-r~="opengl"] { --rc: var(--r-opengl); }
.rt-node--metal rect { stroke: url(#rt-metal-stroke); filter: drop-shadow(0 0 18px rgba(95, 225, 255, 0.12)); }

/* legend and matrix: a dot in the route's color */
.rt-legend button[data-focus-route]::before,
.rt-matrix th[scope="row"] strong::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 0.5rem;
  border-radius: 50%;
  vertical-align: 0.1em;
  background: var(--rc, var(--text-soft));
}
.rt-legend button[data-focus-route=""]::before { background: linear-gradient(135deg, var(--cyan), var(--violet)); }
.rt-legend button[data-focus-route="mullion"], .rt-matrix tr[data-route="mullion"] { --rc: var(--r-mullion); }
.rt-legend button[data-focus-route="vkd3d"], .rt-matrix tr[data-route="vkd3d"] { --rc: var(--r-vkd3d); }
.rt-legend button[data-focus-route="d3dmetal"], .rt-matrix tr[data-route="d3dmetal"] { --rc: var(--r-d3dmetal); }
.rt-legend button[data-focus-route="opengl"], .rt-matrix tr[data-route="opengl"] { --rc: var(--r-opengl); }
.rt-legend button[aria-pressed="true"] { border-color: color-mix(in srgb, var(--rc, var(--text-soft)) 60%, transparent); }
.rt-matrix .rt-yes { background: var(--rc, var(--text)); box-shadow: 0 0 8px color-mix(in srgb, var(--rc, var(--text)) 35%, transparent); }
.rt-matrix tbody tr:hover, .rt-matrix tbody tr.is-focus { background: color-mix(in srgb, var(--rc, #fff) 5%, transparent); }
.rt-key .rt-yes { background: linear-gradient(135deg, var(--cyan), var(--violet)); }
.rt-note { border-top-color: transparent; border-image: linear-gradient(90deg, var(--cyan), var(--violet) 60%, transparent) 1; }