/* "Systems Blueprint": navy ground, warm off-white text, hairline rules,
   square corners and one restrained amber accent. Values are the old Flutter
   app's dark theme (lib/app/design/blueprint_tokens.dart, lib/app/theme.dart). */

:root {
  /* Navy "night blueprint" palette: the site's only theme. */
  --paper: #0E141B;
  --paper-elevated: #141B24;
  --ink: #F3EFE6;
  --ink-muted: #AAB2BC;
  --hairline: #2A3542;
  --accent: #D9821E;
  --grid: rgba(243, 239, 230, 0.06);

  --serif: "Fraunces", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Consolas, monospace;

  --max: 1160px;
  --gutter: 32px;

  color-scheme: dark;
}

@media (max-width: 599px) {
  :root { --gutter: 20px; }
}

/* ---------- Base ---------- */

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  color: var(--ink);
  font: 14px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}

main { flex: 1 0 auto; width: 100%; }

h1, h2, h3, p, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.skip-link {
  position: absolute; left: 8px; top: -60px; z-index: 50;
  padding: 10px 14px; background: var(--ink); color: var(--paper);
}
.skip-link:focus { top: 8px; }

.icon { width: 18px; height: 18px; flex: none; }
.icon-sm { width: 16px; height: 16px; }

/* ---------- Layout ---------- */

.container { max-width: var(--max); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
.pad { padding-top: 72px; padding-bottom: 72px; }
.pad-tight { padding-top: 36px; padding-bottom: 32px; }

@media (max-width: 599px) {
  .pad { padding-top: 48px; padding-bottom: 48px; }
  .pad-tight { padding-top: 28px; padding-bottom: 24px; }
}

.grid-bg {
  background-image:
    linear-gradient(to right, var(--grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
  background-size: 40px 40px;
}

.gap-64 { height: 64px; }

/* ---------- Type ---------- */

.display { font: 600 44px/1.1 var(--serif); letter-spacing: -1px; }
.display-xl { font: 600 64px/1.05 var(--serif); letter-spacing: -1.5px; margin-bottom: 8px; }
.headline { font: 600 30px/1.25 var(--serif); letter-spacing: -0.5px; margin-bottom: 6px; }
.title-lg { display: block; font: 600 22px/1.3 var(--serif); color: var(--ink); }
.title-md { font: 600 16px/1.5 var(--sans); color: var(--ink); }
.body-lg { font-size: 17px; line-height: 1.65; color: var(--ink-muted); max-width: 680px; }
.body-md { display: block; font-size: 14px; line-height: 1.6; color: var(--ink-muted); }
.narrow { max-width: 680px; }
.ellipsis { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.clamp-3 { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

.meta { display: block; font-weight: 500; font-size: 11px; color: var(--ink-muted); }
.meta-sm { font-size: 10.5px; letter-spacing: 0.3px; line-height: 1.5; }
.meta-lg { font-size: 12px; }
.meta-label { font-weight: 500; font-size: 11px; letter-spacing: 1px; color: var(--ink-muted); }
.focus-label { font-weight: 500; font-size: 11px; letter-spacing: 1px; color: var(--accent); margin-bottom: 6px; }

/* §NN section label */
.label { display: flex; align-items: center; gap: 10px; font-weight: 500; font-size: 13px; }
.label b { font-weight: 500; color: var(--accent); letter-spacing: 1.2px; }
.label span { color: var(--ink-muted); letter-spacing: 2px; text-transform: uppercase; }

.page-head { margin-bottom: 32px; }
.lead { margin-top: 12px; max-width: 560px; font-size: 17px; line-height: 1.65; color: var(--ink-muted); }

.empty { padding: 80px 0; text-align: center; color: var(--ink-muted); }

/* ---------- Buttons ---------- */

.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 16px 24px; border: 1px solid transparent;
  font: 600 13px/1.2 var(--mono); letter-spacing: 1.2px;
  transition: background-color .15s, border-color .15s, color .15s;
}
.btn-compact { padding: 11px 18px; }
.btn-solid { background: var(--ink); color: var(--paper); }
.btn-solid:hover { background: var(--accent); }
.btn-outline { border-color: var(--hairline); color: var(--ink); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

.icon-btn {
  display: inline-flex; padding: 8px; color: var(--ink);
}
.icon-btn:hover { color: var(--accent); }

/* ---------- Header / nav ---------- */

.site-header {
  position: sticky; top: 0; z-index: 20;
  background: var(--paper);
  border-bottom: 1px solid var(--hairline);
}
.header-inner {
  height: 76px; display: flex; align-items: center; justify-content: space-between;
  padding: 0 22px 0 24px;
}
.brand { display: flex; flex: none; transition: transform .2s ease; }
.brand img { width: 34px; height: 34px; }
.brand:hover { transform: rotate(-6deg); }
.site-nav ul { display: flex; }
.site-nav a {
  position: relative; display: block; padding: 4px 10px 9px;
  font-weight: 500; font-size: 12px; letter-spacing: 1.2px; text-transform: uppercase;
  color: var(--ink-muted); transition: color .15s;
}
.site-nav a::after {
  content: ""; position: absolute; left: 50%; bottom: 0; width: 0; height: 1.5px;
  background: var(--accent); transform: translateX(-50%); transition: width .15s;
}
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--accent); }
.site-nav a:hover::after, .site-nav a[aria-current="page"]::after { width: 20px; }

.menu-btn { display: none; }

@media (max-width: 599px) {
  .header-inner { height: 56px; padding: 0 16px 0 8px; }
  .brand { order: 2; }
  .brand img { width: 30px; height: 30px; }
  /* Solid amber so it's obvious where to tap on a dark header. */
  .menu-btn {
    display: flex; align-items: center; height: 40px; margin-left: 8px; padding: 0 14px 0 12px;
    background: var(--accent); color: var(--paper); border: 0; cursor: pointer;
    font: 600 12px/1 var(--mono); letter-spacing: 1.6px; text-transform: uppercase;
  }
  .menu-btn:active { filter: brightness(1.1); }
  .menu-lines { display: flex; flex-direction: column; justify-content: center; width: 18px; margin-right: 10px; }
  .menu-lines span { display: block; height: 2px; background: currentColor; }
  .menu-lines span + span { margin-top: 4px; }
  .site-nav {
    position: fixed; top: 0; bottom: 0; left: 0; z-index: 30; width: min(304px, 85vw);
    padding: 12px 0; background: var(--paper); border-right: 1px solid var(--hairline);
    transform: translateX(-100%); transition: transform .2s ease; visibility: hidden;
  }
  .nav-open .site-nav { transform: none; visibility: visible; }
  /* Backdrop lives inside the header's stacking context so it sits *under*
     the drawer (z 30) — on the root it would cover the links and eat taps. */
  .nav-open .site-header::after {
    content: ""; position: fixed; top: 0; right: 0; bottom: 0; left: 0; z-index: 25; background: rgba(0, 0, 0, .5);
  }
  .site-nav ul { flex-direction: column; }
  .site-nav a { padding: 16px 24px; font-size: 13px; color: var(--ink); }
  .site-nav a::after { display: none; }
}

/* ---------- Footer ---------- */

.site-footer {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 24px 20px; border-top: 1px solid var(--hairline);
  font-weight: 500; font-size: 11px; color: var(--ink-muted);
}

/* ---------- Home ---------- */

.hero {
  display: flex; align-items: flex-start; gap: 36px;
  padding: 36px var(--gutter) 28px 24px;
}
.portrait {
  flex: none; width: 108px; height: 138px; object-fit: cover;
  border-radius: 50%; border: 1px solid var(--hairline); background: var(--paper-elevated);
}
.hero-copy { flex: 1; min-width: 0; }
.hero-name { font: 600 40px/1.05 var(--serif); letter-spacing: -0.5px; }
.hero-tagline {
  max-width: 460px; margin-top: 8px;
  font-weight: 500; font-size: 12px; letter-spacing: 1.6px; color: var(--accent);
}
.hero-headline { margin-top: 22px; font: 600 32px/1.15 var(--serif); letter-spacing: -0.5px; }
.dot-list { max-width: 560px; margin: 12px 0 20px; color: var(--ink-muted); }
.dot-list li { position: relative; padding-left: 12px; margin-bottom: 6px; }
.dot-list li::before { content: "·"; position: absolute; left: 0; color: var(--accent); font-weight: 500; }

.principle-band {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 20px;
  padding: 14px var(--gutter);
  border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline);
  font-weight: 500; font-size: 17px; letter-spacing: 1.6px;
}

.home-bio { padding-top: 32px; }
.home-bio .label { margin-bottom: 10px; }
.home-bio .body-md { max-width: 680px; }

.home-flow { max-width: calc(1000px + 24px + var(--gutter)); padding: 28px var(--gutter) 32px 24px; }
.home-flow .label { margin-bottom: 14px; }

.flow { display: flex; align-items: flex-start; }
.flow li { flex: 1 1 0; display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.flow li + li { position: relative; margin-left: 26px; }
.flow li + li::before {
  content: ""; position: absolute; left: -22px; top: 10px; width: 18px; height: 1px; background: var(--hairline);
}
.flow b {
  display: grid; place-items: center; width: 20px; height: 20px;
  border: 1px solid var(--accent); color: var(--accent);
  font-weight: 500; font-size: 9px;
}
.flow span { font-weight: 500; font-size: 12px; line-height: 1.6; color: var(--ink); }

@media (max-width: 899px) {
  .flow { flex-direction: column; }
  .flow li { flex-direction: row; align-items: center; gap: 12px; }
  .flow li + li { margin: 14px 0 0; }
  .flow li + li::before { left: 10px; top: -14px; width: 1px; height: 14px; }
}

@media (max-width: 599px) {
  /* Keep the portrait beside the name on phones, as on desktop. */
  .hero { gap: 16px; padding: 28px var(--gutter) 28px 20px; }
  .portrait { width: 72px; height: 92px; }
  .hero-name { font-size: 28px; }
  .hero-tagline { font-size: 11px; }
  .hero-headline { margin-top: 20px; font-size: 24px; }
  .principle-band { padding-top: 10px; padding-bottom: 10px; font-size: 14px; }
  .home-bio { padding-top: 24px; }
  .home-flow { padding-top: 24px; padding-bottom: 24px; }
}

/* ---------- Index rows (Work, Research) ---------- */

.index-list > li + li { border-top: 1px solid var(--hairline); }
.index-row, .research-row summary {
  display: flex; align-items: flex-start; padding: 24px 0;
  transition: background-color .15s;
}
.index-row:hover, .research-row summary:hover { background: var(--paper-elevated); }
.index-num { flex: none; width: 56px; font-weight: 500; font-size: 14px; color: var(--accent); }
.index-body { flex: 1; min-width: 0; }
.index-body .title-lg { margin-bottom: 6px; }
.index-body .meta { margin-top: 10px; }
.index-arrow { flex: none; display: flex; color: var(--ink-muted); }
a:hover .index-arrow { color: var(--accent); }

@media (max-width: 699px) {
  .index-row { flex-direction: column; }
  .index-row .index-num { margin-bottom: 12px; }
  .index-row .index-arrow { display: none; }
}

.research-row summary { cursor: pointer; list-style: none; }
.research-row summary::-webkit-details-marker { display: none; }
.toggle { position: relative; flex: none; width: 18px; height: 18px; color: var(--ink-muted); }
.toggle::before, .toggle::after {
  content: ""; position: absolute; left: 3px; right: 3px; top: 50%; height: 1.6px;
  background: currentColor; transform: translateY(-50%);
}
.toggle::after { transform: translateY(-50%) rotate(90deg); }
.research-row[open] .toggle::after { display: none; }
.research-detail { padding: 0 0 24px 56px; max-width: calc(620px + 56px); }
.research-detail .meta { margin-bottom: 16px; }
.research-detail .btn-row { margin-top: 16px; }

/* ---------- Project detail ---------- */

.back-link { display: inline-block; margin-bottom: 24px; font-weight: 500; font-size: 12px; color: var(--ink-muted); }
.back-link:hover { color: var(--accent); }
main > .display + .body-lg { margin-top: 16px; }
.metas { display: flex; flex-wrap: wrap; gap: 16px 40px; margin-top: 28px; }
.metas .meta-label { margin-bottom: 4px; }
.meta-lg { margin-top: 24px; }
.credit {
  max-width: 652px; margin-top: 24px; padding: 12px 16px;
  border-left: 2px solid var(--accent); font-style: italic; color: var(--ink-muted);
}
.story { margin-top: 56px; }
.case { margin-bottom: 40px; }
.case .label { margin-bottom: 14px; }
.story + .btn-row { margin-top: 8px; }

/* Media: walkthrough video and app screenshot strip */
.case.media { margin-bottom: 56px; }
.video-fig { margin: 28px 0 0; max-width: 960px; }
.video-fig video {
  display: block; width: 100%; height: auto; aspect-ratio: 16 / 9;
  background: #000; border: 1px solid var(--hairline);
}
.video-fig figcaption { margin-top: 12px; }
.video-fig figcaption a { color: var(--accent); border-bottom: 1px solid currentColor; }
.video-fig figcaption a:hover { color: var(--ink); }

.shots {
  display: grid; grid-auto-flow: column; grid-auto-columns: 200px; gap: 20px;
  margin-top: 28px; padding-bottom: 16px; overflow-x: auto;
  scroll-snap-type: x mandatory; overscroll-behavior-x: contain;
  scrollbar-color: var(--hairline) transparent;
}
.shots li { scroll-snap-align: start; }
.shot {
  display: block; overflow: hidden; border: 1px solid var(--hairline); border-radius: 14px;
  background: var(--paper-elevated); transition: border-color .2s, transform .2s;
}
.shot img { width: 100%; height: auto; aspect-ratio: 369 / 800; }
.shot:hover { border-color: var(--accent); transform: translateY(-3px); }
.shot-cap { margin-top: 12px; font: 600 14px/1.4 var(--sans); color: var(--ink); }
.shot-cap b { margin-right: 6px; font: 600 11px var(--mono); color: var(--accent); }
.shots .body-md { margin-top: 4px; font-size: 13px; }

.lightbox {
  width: 100%; height: 100%; max-width: none; max-height: none; margin: 0; padding: 0;
  border: 0; background: transparent; color: var(--ink);
}
.lightbox::backdrop { background: rgba(8, 12, 16, 0.92); }
.lightbox[open] { display: grid; grid-template-rows: 1fr auto; place-items: center; }
.lightbox img { max-width: min(92vw, 460px); max-height: calc(100dvh - 120px); width: auto; height: auto; border-radius: 14px; }
.lightbox p { padding: 12px 64px 20px; max-width: 560px; text-align: center; font-size: 14px; line-height: 1.5; color: var(--ink-muted); }
.lb-btn {
  position: absolute; display: grid; place-items: center; width: 44px; height: 44px;
  border: 1px solid var(--hairline); background: var(--paper); color: var(--ink);
  font: 600 20px/1 var(--sans); cursor: pointer;
}
.lb-btn:hover { border-color: var(--accent); color: var(--accent); }
.lb-close { top: 16px; right: 16px; }
.lb-prev { left: 16px; top: 50%; transform: translateY(-50%); }
.lb-next { right: 16px; top: 50%; transform: translateY(-50%); }

@media (max-width: 599px) {
  .shots { grid-auto-columns: 62%; gap: 14px; }
  .lb-prev, .lb-next { top: auto; bottom: 16px; transform: none; }
  .lightbox p { padding: 12px 64px 72px; }
}

/* System framework (diagram, layer pipeline, evaluation targets) */
.case.fw { margin-bottom: 56px; }
.fw-figure { margin: 28px 0 0; max-width: 760px; padding: 20px; background: var(--paper-elevated); border: 1px solid var(--hairline); }
.fw-figure figcaption { margin-top: 12px; line-height: 1.6; }
.fw-svg { display: block; width: 100%; height: auto; font-family: var(--mono); font-weight: 600; }
.fw-svg .t-ink { fill: var(--ink); }
.fw-svg .t-muted { fill: var(--ink-muted); }
.fw-svg .t-accent { fill: var(--accent); }
.fw-svg .axis { fill: none; stroke: var(--hairline); stroke-width: 1.5; }
.fw-svg .trace { fill: none; stroke: var(--ink); stroke-width: 2; stroke-linejoin: round; }
.fw-svg .peak { fill: var(--accent); }
.fw-svg .guide { stroke: var(--accent); stroke-width: 1.2; stroke-dasharray: 3 5; opacity: .7; }
.fw-svg .soil { fill: var(--paper); }
.fw-svg .ground { stroke: var(--ink-muted); stroke-width: 1.5; }
.fw-svg .field { fill: none; stroke: var(--accent); stroke-width: 1.4; stroke-dasharray: 6 6; opacity: .65; }
.fw-svg .sensor { fill: var(--paper-elevated); stroke: var(--ink); stroke-width: 1.5; }
.fw-svg .cell { fill: rgba(217, 130, 30, 0.3); stroke: var(--accent); stroke-width: 1.2; }
.fw-svg .dim { fill: none; stroke: var(--ink-muted); stroke-width: 1.2; }
.fw-svg .pipe { fill: var(--hairline); stroke: var(--ink-muted); stroke-width: 1.5; }
.fw-svg .corrosion { fill: var(--accent); }

.fw-io { max-width: 760px; margin-top: 28px; padding: 16px 20px; border-left: 2px solid var(--accent); background: var(--paper-elevated); }
.fw-io .dash-list li { font-size: 15px; margin-bottom: 2px; }
.fw-io .body-md { margin-top: 10px; font-style: italic; }

.fw-layers { max-width: 760px; margin-top: 28px; }
.fw-layers li { position: relative; display: flex; gap: 20px; padding-bottom: 28px; }
.fw-layers li:not(:last-child)::after {
  content: ""; position: absolute; left: 15.5px; top: 36px; bottom: 4px; width: 1px; background: var(--hairline);
}
.fw-layers b {
  flex: none; display: grid; place-items: center; width: 32px; height: 32px;
  border: 1px solid var(--accent); color: var(--accent); font-weight: 500; font-size: 12px;
}
.fw-layers li > div { min-width: 0; padding-top: 2px; }
.fw-group { font-weight: 500; font-size: 10.5px; letter-spacing: 1.4px; color: var(--accent); margin-bottom: 4px; }
.fw-layers .body-md { margin-top: 4px; max-width: 620px; }
.fw-layers .meta { margin-top: 8px; }
.fw-layers + .fw-io { margin-top: 0; }

.fw-targets {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1px;
  max-width: 960px; margin-top: 28px; background: var(--hairline); border: 1px solid var(--hairline);
}
.fw-targets li { display: flex; flex-direction: column; gap: 6px; padding: 20px; background: var(--paper); }
.fw-value { font: 600 26px/1.2 var(--serif); color: var(--accent); }

@media (max-width: 599px) {
  .fw-figure { padding: 12px; }
  .fw-scroll { overflow-x: auto; }
  .fw-svg { min-width: 520px; }
  .fw-layers li { gap: 14px; }
  .fw-targets { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- Engineering ---------- */

.eng-list { margin-top: 12px; }
.eng-row { display: flex; align-items: flex-start; padding: 12px 0; }
.eng-row + .eng-row { border-top: 1px solid var(--hairline); }
.eng-row > .label { flex: none; width: 230px; padding-right: 12px; }
.eng-row > div { flex: 1; min-width: 0; }
.eng-row .body-md { margin-top: 3px; }
.eng-row .meta { margin-top: 6px; }

@media (max-width: 699px) {
  .eng-row { flex-direction: column; gap: 8px; }
  .eng-row > .label { width: auto; }
  .eng-row .ellipsis { white-space: normal; }
}

/* ---------- About ---------- */

.about-sec { margin-bottom: 64px; }
.about-sec > .label { margin-bottom: 16px; }
.about-sec > .body-lg + .body-lg { margin-top: 16px; }
.slug-links { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: 16px; }
.slug-links a {
  font-weight: 500; font-size: 12px; letter-spacing: 1px; color: var(--accent);
  text-decoration: underline; text-underline-offset: 3px;
}
.about-sec > .label + .blocks { margin-top: 20px; }
.blocks { display: flex; flex-wrap: wrap; gap: 16px; }
.block {
  width: 300px; padding: 20px;
  background: var(--paper-elevated); border: 1px solid var(--hairline);
}
.block .title-md { margin-bottom: 8px; }

.closing {
  padding: 36px 28px;
  border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline);
}
.closing-words { font-weight: 500; font-size: 22px; letter-spacing: 2px; margin-bottom: 16px; }
.closing .body-lg { max-width: 600px; }

@media (max-width: 599px) {
  .about-sec { margin-bottom: 48px; }
  .block { width: 100%; }
  .closing { padding: 28px 20px; }
  .closing-words { font-size: 18px; }
}

/* ---------- Experience timeline ---------- */

.tl-entry { position: relative; padding: 0 0 40px 34px; }
.tl-entry::before {
  content: ""; position: absolute; left: 0; top: 6px; width: 10px; height: 10px;
  border: 1.5px solid var(--accent); border-radius: 50%;
}
.tl-entry.current::before { background: var(--accent); }
.tl-entry:not(:last-child)::after {
  content: ""; position: absolute; left: 4.5px; top: 16px; bottom: 0; width: 1px; background: var(--hairline);
}
.tl-entry > .meta { letter-spacing: 1px; margin-bottom: 8px; }
.tl-entry > .body-lg, .tl-entry > .dash-list { margin-top: 12px; max-width: 620px; }
.dash-list li { position: relative; padding-left: 22px; margin-bottom: 4px; font-size: 17px; line-height: 1.65; color: var(--ink-muted); }
.dash-list li::before { content: "—"; position: absolute; left: 0; color: var(--accent); }

/* ---------- Credentials ---------- */

.label + .certs { margin-top: 20px; }
.certs { display: flex; flex-wrap: wrap; gap: 20px; }
.cert { width: 500px; background: var(--paper-elevated); border: 1px solid var(--hairline); }
.cert img { width: 100%; aspect-ratio: 1.6; object-fit: cover; }
.cert-body { display: flex; align-items: flex-start; justify-content: space-between; gap: 8px; padding: 16px; }
.cert-body .meta { margin-top: 4px; }

.label + .ach-list { margin-top: 16px; }
.ach-row { display: flex; align-items: flex-start; justify-content: space-between; padding: 16px 0; }
.ach-row + .ach-row { border-top: 1px solid var(--hairline); }
.ach-row .title-md { margin-bottom: 4px; }
.ach-row .meta { margin-top: 4px; }

@media (max-width: 599px) {
  .cert { width: 100%; }
}

/* ---------- Skills ---------- */

.skills-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; align-items: start; }
@media (max-width: 1063px) { .skills-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 703px) { .skills-grid { grid-template-columns: minmax(0, 1fr); } }

.skill-card {
  padding: 22px; background: var(--paper-elevated); border: 1px solid var(--hairline);
  transition: border-color .18s;
  animation: rise .42s ease-out both; animation-delay: calc(var(--i) * 50ms);
}
.skill-card:hover { border-color: var(--accent); }
.skill-card > .body-md { margin-top: 10px; }
.pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.pill {
  padding: 6px 10px; border: 1px solid var(--hairline);
  font-weight: 500; font-size: 10.5px; line-height: 1.4; letter-spacing: 0.3px; color: var(--ink-muted);
  transition: border-color .15s, color .15s;
}
.pill.primary { background: var(--paper); border-color: var(--ink); color: var(--ink); font-weight: 600; font-size: 11.5px; }
.pill:hover { border-color: var(--accent); color: var(--accent); }
.skill-card .focus-label { margin: 16px 0 6px; font-size: 10px; }
.skill-card .meta { line-height: 1.6; }

@keyframes rise {
  from { opacity: 0; transform: translateY(4%); }
  to { opacity: 1; transform: none; }
}

/* ---------- Contact ---------- */

.contact-list > li + li { border-top: 1px solid var(--hairline); }
.contact-row { display: flex; align-items: center; padding: 22px 0; }
.contact-row .meta-label { flex: none; width: 120px; }
.contact-row .title-lg { flex: 1; min-width: 0; overflow-wrap: anywhere; transition: color .15s; }
.contact-row:hover .title-lg { color: var(--accent); }

/* ---------- Motion ---------- */

/* Animated blueprint grid (drawn by js/main.js) sits behind everything and
   replaces the static hero grid when scripts run. */
.bg-canvas { position: fixed; top: 0; left: 0; z-index: -1; width: 100%; height: 100%; pointer-events: none; }
.js .grid-bg { background-image: none; }

/* Reveal on load / scroll. Only hidden once JS has marked the page. */
.js .reveal {
  opacity: 0; transform: translateY(14px);
  transition: opacity .6s ease, transform .6s cubic-bezier(.2, .7, .2, 1);
  transition-delay: var(--d, 0ms);
}
.js .reveal.in { opacity: 1; transform: none; }

/* "How I work": steps light up in order, connectors draw between them. */
.js .flow li {
  opacity: 0; transform: translateY(8px);
  transition: opacity .5s ease, transform .5s ease;
  transition-delay: calc(var(--n, 0) * 140ms);
}
.js .flow li + li::before {
  transform: scaleX(0); transform-origin: left center;
  transition: transform .3s ease; transition-delay: calc(var(--n, 0) * 140ms - 90ms);
}
.js .flow.run li { opacity: 1; transform: none; }
.js .flow.run li + li::before { transform: none; }
.js .flow.run b { animation: node-on .9s ease both; animation-delay: calc(var(--n, 0) * 140ms + 150ms); }

@keyframes node-on {
  0% { background: transparent; color: var(--accent); }
  35% { background: var(--accent); color: var(--paper); box-shadow: 0 0 0 4px rgba(217, 130, 30, .2); }
  100% { background: transparent; color: var(--accent); box-shadow: none; }
}

@media (max-width: 899px) {
  .js .flow li + li::before { transform: scaleY(0); transform-origin: center top; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal, .js .flow li { opacity: 1; transform: none; }
  .js .flow li + li::before { transform: none; }
}