:root {
  color-scheme: dark;
  --shell: #16161b;
  --panel: #1b1b21;
  --ink: #ece8e1;
  --ink-soft: #a9a29a;
  --ink-dim: #949089;
  --line: rgba(255, 255, 255, .11);
  --line-strong: rgba(255, 255, 255, .32);
  /* Connection kinds share the capstone vocabulary; they are not project or status colors. */
  --k-net: #35e0e8;
  --k-storage: #a78bfa;
  --k-control: #edb200;
  --k-orch: #00c758;
  --k-work: #fe6e00;
  --mono: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, monospace;
  --sans: ui-sans-serif, system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --reading: 1.125rem;
  --label: 1rem;
  --badge: .875rem;
  font-family: var(--sans);
  line-height: 1.65;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 2rem; }
body { margin: 0; background: radial-gradient(1000px 700px at 35% 0, #1e1e26, transparent 65%), var(--shell); color: var(--ink); font-size: var(--reading); }
::selection { background: var(--ink); color: var(--shell); }
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: .25em; }
a:focus-visible, summary:focus-visible, button:focus-visible { outline: 2px solid var(--ink); outline-offset: 5px; border-radius: 2px; }
h1, h2, h3, p { margin: 0; }
p { text-wrap: pretty; }
h1, h2, h3 { line-height: 1.15; }
p + p { margin-top: 1rem; }
.skip-link { position: absolute; z-index: 5; top: 1rem; left: 1rem; padding: .8rem 1.2rem; background: var(--ink); color: var(--shell); transform: translateY(-180%); font-weight: 700; }
.skip-link:focus { transform: translateY(0); }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 2rem; min-height: 80px; padding: 1rem 2.5rem; border-bottom: 1px solid var(--line); }
.identity { display: inline-flex; align-items: center; gap: .7rem; font-size: var(--reading); font-weight: 600; }
.identity-mark { width: 1.6em; height: 1.5em; flex: none; }
.header-meta { display: flex; align-items: center; gap: 1.5rem; }
.header-meta a { display: inline-flex; align-items: center; gap: .8rem; min-height: 44px; font-family: var(--mono); font-size: var(--label); color: var(--ink-soft); }
.chip { display: inline-block; padding: .2rem .5rem; border: 1px solid var(--line); border-radius: 2px; font-family: var(--mono); font-size: var(--badge); letter-spacing: .06em; text-transform: uppercase; color: var(--ink-dim); }
.portfolio-shell { display: grid; grid-template-columns: 250px minmax(0, 1fr); max-width: 1600px; margin-inline: auto; }
.movement-rail { align-self: start; position: sticky; top: 1.25rem; max-height: calc(100svh - 2.5rem); overflow-y: auto; padding: 2rem 1rem; }
.cap { color: var(--ink-dim); font-family: var(--mono); font-size: var(--label); font-weight: 400; letter-spacing: .08em; text-transform: uppercase; }
.movement-rail > .cap { padding-inline: .65rem; }
.rail-list { margin: .85rem 0 0; padding: 0; list-style: none; }
.rail-list a { display: flex; align-items: baseline; gap: .7rem; min-height: 44px; padding: .7rem .65rem; border-radius: 2px; font-size: var(--label); color: var(--ink-soft); transition: background 160ms ease, color 160ms ease; }
.rail-list a > span:last-child { min-width: 0; }
.rail-list a:hover { color: var(--ink); background: rgba(255, 255, 255, .04); text-decoration: none; }
.rail-number { font-family: var(--mono); color: var(--ink-dim); font-size: var(--badge); flex-shrink: 0; }
.rail-detour { margin: 1.5rem .65rem 0; padding-top: 1.4rem; border-top: 1px solid var(--line); }
.rail-detour .text-link { display: flex; width: fit-content; margin-top: .5rem; }
.rail-foot { margin: 1.5rem .65rem 0; padding-top: 1.4rem; border-top: 1px solid var(--line); }
.rail-foot p:not(.cap) { color: var(--ink-soft); font-size: var(--reading); line-height: 1.65; }
.rail-foot p.rail-note { color: var(--ink-dim); }
.workspace { min-width: 0; padding-inline: clamp(2rem, 4vw, 4rem); border-left: 1px solid var(--line); }
.movement { padding-block: 3.5rem; border-bottom: 1px solid var(--line); }
.movement-label { display: flex; align-items: center; flex-wrap: wrap; gap: .75rem; margin-bottom: 1.8rem; color: var(--ink-dim); font-family: var(--mono); font-size: var(--badge); letter-spacing: .08em; text-transform: uppercase; }
.hero { padding-top: 4rem; }
.hero-body { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); align-items: center; gap: 3rem; }
.hero-kicker { color: var(--ink-soft); font-family: var(--mono); font-size: var(--label); letter-spacing: .05em; text-transform: uppercase; }
h1 { margin-block: 1rem 1.5rem; font-size: clamp(2.5rem, 4vw, 3.65rem); font-weight: 600; letter-spacing: -.055em; line-height: 1.08; }
/* Balanced wrap: Segoe UI sets wider than San Francisco, so these short lines wrap on Windows. */
.hero-intro { max-width: 64ch; font-size: var(--reading); line-height: 1.65; text-wrap: balance; }
.hero-detail { max-width: 64ch; color: var(--ink-soft); font-size: var(--reading); text-wrap: balance; }
.link-row { display: flex; flex-wrap: wrap; align-items: center; gap: .8rem 1.5rem; margin-top: 1.75rem; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 1.5rem; max-width: 100%; min-height: 44px; padding: .75rem 1rem; border: 1px solid var(--line-strong); border-radius: 2px; background: rgba(255, 255, 255, .03); font-family: var(--mono); font-size: var(--label); line-height: 1.5; transition: background 160ms ease, border-color 160ms ease; }
.button:hover { background: rgba(255, 255, 255, .07); border-color: var(--ink-soft); text-decoration: none; }
.text-link { display: inline-flex; align-items: center; gap: .65rem; max-width: 100%; min-height: 44px; color: var(--ink-soft); font-family: var(--mono); font-size: var(--label); }
.intro-note { padding: 1.6rem 0 1.6rem 1.6rem; border-left: 1px solid var(--line); }
.note-title { margin-top: 1rem; font-size: 1.25rem; line-height: 1.3; letter-spacing: -.02em; }
.intro-note p:not(.cap):not(.note-title) { color: var(--ink-soft); font-size: var(--reading); }
.intro-note p.note-meta { font-size: var(--label); color: var(--ink-dim); }
.fabric-strip { display: flex; align-items: center; flex-wrap: wrap; gap: .65rem; margin-top: 3rem; padding: .75rem; border: 1px solid var(--line); border-radius: 2px; background: var(--panel); }
.fabric-strip > .cap { margin-inline: .2rem .5rem; padding-left: .65rem; border-left: 2px solid var(--k-work); }
.fabric-cell { padding: .25rem .6rem; border: 1px solid var(--line); border-radius: 2px; color: var(--ink-soft); font-family: var(--mono); font-size: var(--label); }
.project-heading { display: flex; align-items: start; justify-content: space-between; flex-wrap: wrap; gap: 1.25rem; }
h2 { font-size: clamp(1.85rem, 3vw, 2.5rem); font-weight: 600; letter-spacing: -.04em; }
.project-subtitle { margin-top: .55rem; font-size: var(--reading); color: var(--ink-soft); }
.scope-label { max-width: 100%; padding-block: .3rem; border-block: 1px dashed var(--line-strong); color: var(--ink-dim); font-family: var(--mono); font-size: var(--label); letter-spacing: .04em; text-transform: uppercase; }
.project-intro, .project-story, .project-atlas { max-width: 64ch; margin-top: 1.5rem; color: var(--ink-soft); font-size: var(--reading); }
.project-story strong { color: var(--ink); font-weight: 600; }
.project-body { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; gap: 2.5rem; margin-top: 2.5rem; }
.system-list { margin: .75rem 0 0; padding: 0; list-style: none; }
.system-list li { display: grid; grid-template-columns: 7rem minmax(0, 1fr); align-items: baseline; gap: 1rem; padding-block: .9rem; border-bottom: 1px solid var(--line); color: var(--ink-soft); font-size: var(--reading); }
.system-list li:first-child { border-top: 1px solid var(--line); }
.node-label { color: var(--ink); font-family: var(--mono); font-size: var(--label); }
.boundary { padding: 1.1rem 1.2rem; border: 1px solid var(--line); border-left: 2px solid var(--ink-dim); border-radius: 2px; background: var(--panel); }
.boundary > p:not(.cap) { margin-top: .7rem; color: var(--ink-soft); font-size: var(--reading); }
details { margin-top: 1rem; border: 1px solid var(--line); border-radius: 2px; }
summary { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 48px; padding: .9rem 1.15rem; font-family: var(--mono); font-size: var(--label); cursor: pointer; list-style: none; transition: background 160ms ease; }
summary::-webkit-details-marker { display: none; }
summary:hover { background: rgba(255, 255, 255, .04); }
.summary-action::before { content: "+"; color: var(--ink-soft); font-size: 1rem; }
details[open] .summary-action::before { content: "-"; }
.detail-content { padding: 1.2rem; border-top: 1px solid var(--line); }
.detail-content h3 { margin-bottom: .7rem; font-size: 1.25rem; font-weight: 600; line-height: 1.5; }
.detail-content p { color: var(--ink-soft); font-size: var(--reading); }
.operation-note { margin-top: 1.25rem; }
.project-figure { margin: 2.5rem 0 0; }
.project-preview { display: block; border: 1px solid var(--line); border-radius: 2px; }
.project-preview:hover { border-color: var(--line-strong); }
.project-figure img { display: block; width: 100%; height: auto; }
.project-figure figcaption { max-width: 64ch; margin-top: 1rem; color: var(--ink-soft); font-size: var(--reading); line-height: 1.65; }
.figure-tools { margin-top: .5rem; }
.portal-fallback { margin-top: 1rem; font-size: var(--reading); }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
html.capstone-open { overflow: hidden; }
.capstone-dialog { width: calc(100vw - 2rem); height: calc(100dvh - 2rem); max-width: none; max-height: none; padding: 0; border: 0; margin: auto; color: var(--ink); background: var(--shell); overflow: hidden; }
.capstone-dialog[open] { display: flex; flex-direction: column; animation: portal-in 140ms ease-out; }
.capstone-dialog::backdrop { background: rgba(6, 7, 10, .86); }
.portal-toolbar { display: flex; flex-shrink: 0; justify-content: flex-end; align-items: center; gap: 1.25rem; padding: .5rem 1rem; }
.portal-exit { color: var(--ink); font-size: var(--reading); cursor: pointer; }
.portal-frame { flex: 1; min-height: 0; }
.portal-frame iframe { display: block; width: 100%; height: 100%; border: 0; }
.portal-status { margin: 0; padding: .5rem 1rem; font-size: var(--reading); line-height: 1.65; }
@keyframes portal-in { from { opacity: 0; } to { opacity: 1; } }
dl { margin: 1.25rem 0 0; }
dl > div { padding-top: 1rem; }
dt { margin-bottom: .3rem; color: var(--ink-dim); font-family: var(--mono); font-size: var(--label); }
dd { margin: 0; color: var(--ink-soft); font-size: var(--reading); overflow-wrap: anywhere; }
.next-movement { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: .5rem 2rem; min-height: 44px; margin-top: 2.5rem; padding-top: 1rem; border-top: 1px solid var(--line); color: var(--ink-dim); font-family: var(--mono); font-size: var(--label); letter-spacing: .03em; }
.next-movement strong { font-size: var(--label); color: var(--ink-soft); font-weight: 400; letter-spacing: 0; }
.next-movement strong span { margin-left: 1rem; }
.section-intro { margin-top: 1rem; color: var(--ink-soft); font-size: var(--reading); }
.approach-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; margin-top: 2.5rem; }
.approach-grid > div { padding-top: 1.3rem; border-top: 1px solid var(--line); }
.approach-grid h3 { margin-block: .9rem .7rem; font-size: 1.25rem; font-weight: 600; line-height: 1.5; }
.approach-grid p:not(.cap) { color: var(--ink-soft); font-size: var(--reading); }
.connect-body { display: flex; align-items: center; justify-content: space-between; gap: 3rem; }
.connect-body p { max-width: 64ch; margin-top: 1rem; color: var(--ink-soft); font-size: var(--reading); }
.connect-body .button { flex-shrink: 0; }
.site-footer { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .5rem 2rem; padding-block: 1.5rem; color: var(--ink-dim); font-family: var(--mono); font-size: var(--badge); }
.site-footer p + p { margin: 0; }
.site-footer a { display: inline-flex; align-items: center; gap: .75rem; min-height: 44px; font-size: var(--label); }

@media (max-width: 1200px) {
  .hero-body { grid-template-columns: 1fr; gap: 2rem; }
  .intro-note { padding-block: .5rem; }
  .note-title br { display: none; }
  .project-body { gap: 1.75rem; }
}

@media (max-width: 900px) {
  .site-header { padding-inline: 1.5rem; }
  .header-meta .chip { display: none; }
  .portfolio-shell { grid-template-columns: 1fr; }
  .movement-rail { position: static; max-height: none; overflow: visible; padding: 1.4rem 1.5rem; border-bottom: 1px solid var(--line); }
  .movement-rail > .cap { padding-inline: 0; }
  .rail-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr)); gap: .2rem .75rem; }
  .rail-list a { padding-inline: 0; }
  .rail-detour { margin-inline: 0; }
  .rail-foot { display: none; }
  .workspace { padding-inline: 2rem; border-left: 0; }
  .hero { padding-top: 3rem; }
  h1 { font-size: clamp(2.5rem, 6vw, 3.65rem); }
}

@media (max-width: 650px) {
  .project-body { grid-template-columns: 1fr; gap: 2rem; }
  .system-list li { grid-template-columns: 1fr; gap: .3rem; }
  .movement { padding-block: 2.75rem; }
  .approach-grid { grid-template-columns: 1fr; gap: 1.75rem; }
  .connect-body { align-items: start; flex-direction: column; gap: 1.75rem; }
  .site-footer { align-items: start; flex-direction: column; }
}

@media (max-width: 450px) {
  .site-header { align-items: start; flex-direction: column; gap: .4rem; padding: 1rem 1.25rem .6rem; }
  .movement-rail { padding-inline: 1.25rem; }
  .rail-list a { gap: .5rem; }
  .workspace { padding-inline: 1.25rem; }
  h1 { font-size: clamp(2rem, 8.7vw, 2.5rem); }
  .movement-label { gap: .5rem; }
  .button { gap: 1rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
  .capstone-dialog[open] { animation: none; }
}

@media (forced-colors: active) {
  .button, .chip, .boundary, details { border-color: ButtonText; }
  a:focus-visible, summary:focus-visible { outline-color: Highlight; }
}

@media print {
  :root { color-scheme: light; --shell: white; --panel: white; --ink: #111; --ink-soft: #333; --ink-dim: #444; --line: #aaa; --line-strong: #777; }
  body { background: white; }
  .portfolio-shell { display: block; }
  .workspace { border: 0; padding: 0; }
  .movement-rail, .skip-link, .next-movement, .site-footer a { display: none; }
  .capstone-dialog { display: none !important; }
  .movement { padding-block: 1.5rem; break-inside: avoid; }
  .button { background: white; }
  a[href^="https://"]::after { content: " (" attr(href) ")"; font-size: .65rem; overflow-wrap: anywhere; }
}