@charset "UTF-8";
:root {
  --bg:#101516;
  --surface:#171e20;
  --surface-alt:#131a1b;
  --text:#f1f0e9;
  --muted:#a3adae;
  --line:#303a3b;
  --accent:#d6ee8d;
  --ink:#172019;
  --board:#192121;
  --warm:#e5bd91;
  --max:1240px;
  color-scheme:dark
}

:root[data-theme="light"] {
  --bg:#f4f3ed;
  --surface:#eaece4;
  --surface-alt:#efefe8;
  --text:#182424;
  --muted:#546363;
  --line:#c8d0c7;
  --accent:#4a6728;
  --ink:#fff;
  --board:#e5e9dd;
  --warm:#82542d;
  color-scheme:light
}

* {
  box-sizing:border-box
}

html {
  scroll-behavior:smooth;
  scroll-padding-top:100px
}

body {
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased
}

a {
  color:inherit;
  text-decoration:none
}

button {
  font:inherit
}

button,a,summary {
  -webkit-tap-highlight-color:transparent
}

button {
  color:inherit
}

a,button,summary {
  touch-action:manipulation
}

a:focus-visible,button:focus-visible,summary:focus-visible {
  outline:2px solid var(--accent);
  outline-offset:6px;
  border-radius:3px
}

::selection {
  background:var(--accent);
  color:var(--ink)
}

h1,h2,h3,p {
  margin:0
}

h1,h2,h3 {
  line-height:1.08;
  font-weight:500;
  letter-spacing:-.045em
}

h2 {
  font-size:clamp(2.25rem,4vw,3.7rem)
}

h3 {
  font-size:1.5rem
}

.wrap {
  width:min(var(--max),calc(100% - 100px));
  margin-inline:auto
}

.section {
  padding-block:100px
}

.serif {
  font-family:Georgia,"Times New Roman",serif;
  font-style:italic;
  font-weight:400;
  color:var(--accent);
  letter-spacing:-.055em
}

.muted {
  color:var(--muted)
}

.sr-only {
  position:absolute;
  width:1px;
  height:1px;
  padding:0;
  margin:-1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0
}

.skip-link {
  position:fixed;
  left:20px;
  top:-100px;
  z-index:100;
  background:var(--accent);
  color:var(--ink);
  padding:12px 20px
}

.skip-link:focus {
  top:16px
}

.site-header {
  position:sticky;
  top:0;
  z-index:20;
  background:var(--bg);
  border-bottom:1px solid var(--line)
}

.navigation {
  min-height:94px;
  display:flex;
  align-items:center;
  gap:32px
}

.brand {
  display:flex;
  align-items:center;
  gap:15px;
  font-size:.8rem;
  font-weight:650;
  letter-spacing:.12em;
  line-height:1.3;
  flex-shrink:0
}

.brand-mark {
  font-size:2.6rem;
  letter-spacing:-.16em;
  font-weight:500;
  line-height:1;
  border:1px solid var(--line);
  padding:1px 13px 5px 8px;
  color:var(--accent)
}

.brand-mark span {
  font-family:Georgia,serif;
  font-style:italic
}

.brand-caption {
  display:block;
  font-size:.53rem;
  font-weight:400;
  letter-spacing:.14em;
  color:var(--muted);
  margin-top:6px
}

.nav-links {
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:35px;
  font-size:.83rem
}

.nav-links a {
  color:var(--muted);
  transition:color .2s
}

.nav-links a:hover,.nav-links a[aria-current] {
  color:var(--text)
}

.nav-links .nav-contact {
  color:var(--text);
  border-bottom:1px solid var(--muted);
  padding-block:7px;
  display:flex;
  gap:22px
}

.icon-button {
  width:40px;
  height:40px;
  display:grid;
  place-content:center;
  border:1px solid var(--line);
  background:transparent;
  cursor:pointer;
  border-radius:50%
}

.icon-button:hover {
  border-color:var(--accent)
}

.theme-toggle svg {
  width:19px;
  height:19px
}

.menu-toggle {
  display:none
}

.hero {
  display:grid;
  grid-template-columns:1.08fr 1fr;
  gap:45px;
  align-items:center;
  padding-block:76px 64px;
  min-height:720px
}

.eyebrow,.section-label,.hero-footnote,.board-heading,.board-footer,.visual-topline,.project-kicker,.workbench-label,.workbench-badge,.toolkit-number,.learning-note>span,.contact-aside>span:last-child {
  font-family:Consolas,"Courier New",monospace;
  font-size:.65rem;
  font-weight:400;
  letter-spacing:.10em
}

.eyebrow {
  color:var(--muted);
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:26px
}

.status-dot {
  width:6px;
  height:6px;
  background:var(--accent);
  border-radius:50%;
  display:inline-block;
  flex-shrink:0;
  box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 8%,transparent)
}

h1 {
  font-size:clamp(3.6rem,6.1vw,5.8rem);
  line-height:1.015;
  letter-spacing:-.065em;
  margin-bottom:28px
}

.hero-intro {
  max-width:430px;
  font-size:1.1rem;
  line-height:1.7;
  color:var(--text)
}

.hero-intro strong {
  font-weight:600
}

.hero-description {
  max-width:420px;
  color:var(--muted);
  font-size:.9rem;
  margin-top:13px
}

.hero-actions {
  display:flex;
  align-items:center;
  gap:30px;
  margin-top:30px
}

.button {
  display:inline-flex;
  align-items:center;
  justify-content:space-between;
  gap:35px;
  min-height:50px;
  padding:12px 22px;
  font-size:.85rem;
  font-weight:550;
  border:1px solid transparent;
  transition:transform .2s,filter .2s
}

.button:hover {
  transform:translateY(-2px);
  filter:brightness(1.06)
}

.primary {
  background:var(--accent);
  color:var(--ink)
}

.button span[aria-hidden] {
  font-size:1.3rem;
  line-height:1
}

.text-link {
  display:inline-flex;
  align-items:center;
  gap:18px;
  font-size:.82rem;
  border-bottom:1px solid var(--line);
  padding-block:5px;
  transition:border-color .2s
}

.text-link:hover {
  border-color:var(--accent)
}

.text-link>span[aria-hidden] {
  color:var(--accent)
}

.hero-footnote {
  display:flex;
  gap:20px;
  margin-top:43px;
  color:var(--muted);
  font-size:.51rem;
  letter-spacing:.08em
}

.engineering-board {
  position:relative;
  background:var(--board);
  border:1px solid var(--line);
  transform:rotate(-2deg);
  margin-top:8px;
  box-shadow:17px 19px 0 -1px var(--bg),17px 19px 0 0 var(--line)
}

.board-heading {
  display:flex;
  justify-content:space-between;
  padding:22px;
  border-bottom:1px solid var(--line);
  color:var(--muted);
  font-size:.56rem
}

.board-heading span:first-child {
  color:var(--accent)
}

.system-diagram {
  width:100%;
  display:block;
  color:var(--muted)
}

.diagram-guides {
  opacity:.25
}

.diagram-orbits {
  stroke:var(--accent);
  opacity:.65
}

.diagram-core {
  fill:var(--board);
  stroke:var(--accent);
  stroke-width:1.2
}

.diagram-ring {
  stroke:var(--line);
  stroke-width:.7
}

.diagram-monogram {
  fill:var(--accent);
  font-family:Georgia,serif;
  font-style:italic;
  font-size:46px
}

.diagram-small {
  fill:var(--muted);
  font-family:Consolas,monospace;
  font-size:5.3px;
  letter-spacing:1px
}

.diagram-node rect {
  fill:var(--board);
  stroke:var(--line)
}

.diagram-node-number {
  fill:var(--accent);
  font-family:Consolas,monospace;
  font-size:8px;
  letter-spacing:.6px
}

.diagram-node-label {
  fill:var(--muted);
  font-size:9px;
  letter-spacing:.3px
}

.diagram-points {
  fill:var(--accent)
}

.board-cross {
  position:absolute;
  font-family:Consolas,monospace;
  font-size:20px;
  color:var(--accent)
}

.top-left {
  top:67px;
  left:16px
}

.bottom-right {
  bottom:61px;
  right:17px
}

.board-footer {
  display:flex;
  justify-content:space-between;
  gap:10px;
  padding:18px;
  border-top:1px solid var(--line);
  color:var(--muted);
  font-size:.44rem;
  letter-spacing:.06em
}

.board-footer i {
  display:inline-block;
  width:5px;
  height:5px;
  background:var(--accent);
  margin-right:7px
}

.discipline-strip {
  border-block:1px solid var(--line);
  margin-top:14px
}

.discipline-strip>.wrap {
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:18px;
  padding-block:20px;
  font-family:Consolas,monospace;
  font-size:.65rem;
  letter-spacing:.15em;
  color:var(--muted)
}

.discipline-strip i {
  font-style:normal;
  color:var(--accent);
  font-size:1.3rem;
  line-height:1
}

.section-label {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  color:var(--muted);
  margin-bottom:45px;
  font-size:.6rem
}

.section-label>span:first-child {
  color:var(--accent)
}

.tiny-cross {
  font-size:1.4rem;
  line-height:1
}

.about {
  display:grid;
  grid-template-columns:.65fr 2fr;
  gap:40px
}

.about .section-label {
  align-items:flex-start;
  justify-content:flex-start;
  gap:40px;
  margin-top:8px
}

.about h2 {
  margin-bottom:30px
}

.about-columns {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:36px;
  margin-bottom:25px
}

.about-columns p {
  font-size:.92rem;
  color:var(--muted);
  line-height:1.9
}

.projects-section {
  background:var(--surface-alt);
  border-block:1px solid var(--line)
}

.section-heading {
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:40px;
  margin-bottom:45px
}

.section-heading>p {
  font-size:.85rem;
  color:var(--muted);
  line-height:1.8;
  margin-bottom:4px;
  max-width:330px
}

.project {
  border:1px solid var(--line);
  background:var(--bg)
}

.project-featured {
  display:grid;
  grid-template-columns:1.05fr 1fr;
  margin-bottom:28px
}

.project-visual {
  background:var(--board);
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  min-width:0
}

.project-featured>.project-visual {
  border-bottom:0;
  border-right:1px solid var(--line);
  min-height:410px;
  display:flex;
  flex-direction:column
}

.visual-topline {
  display:flex;
  align-items:center;
  justify-content:space-between;
  color:var(--muted);
  padding:23px 25px;
  font-size:.56rem;
  letter-spacing:.07em
}

.visual-topline>span:last-child {
  color:var(--accent)
}

.carrier-visual {
  background-image:linear-gradient(color-mix(in srgb,var(--line) 40%,transparent) 1px,transparent 1px),linear-gradient(90deg,color-mix(in srgb,var(--line) 40%,transparent) 1px,transparent 1px);
  background-size:28px 28px
}

.unit-illustration {
  position:relative;
  width:78%;
  max-width:390px;
  margin:auto;
  transform:perspective(700px) rotateY(-12deg) rotateX(6deg)
}

.dimension-line {
  font-family:Consolas,monospace;
  text-align:center;
  font-size:.52rem;
  letter-spacing:.15em;
  color:var(--muted);
  border-top:1px solid var(--muted);
  padding-top:6px;
  margin-bottom:16px;
  position:relative
}

.dimension-line:before,.dimension-line:after {
  content:"";
  position:absolute;
  top:-5px;
  width:1px;
  height:9px;
  background:var(--muted)
}

.dimension-line:before {
  left:0
}

.dimension-line:after {
  right:0
}

.ahu-unit {
  display:flex;
  align-items:center;
  justify-content:space-around;
  gap:20px;
  border:1px solid var(--accent);
  height:125px;
  padding:19px;
  box-shadow:8px -8px 0 -1px var(--board),8px -8px 0 0 var(--accent);
  background:var(--board)
}

.unit-grille {
  height:85px;
  width:36%;
  background:repeating-linear-gradient(0deg,var(--line) 0 2px,transparent 2px 7px);
  border:1px solid var(--muted)
}

.unit-fan {
  width:74px;
  height:74px;
  border:1px solid var(--accent);
  border-radius:50%;
  position:relative;
  display:grid;
  place-items:center
}

.unit-fan:after {
  content:"";
  width:10px;
  height:10px;
  background:var(--accent);
  border-radius:50%;
  position:absolute
}

.unit-fan span {
  width:56px;
  height:56px;
  background:conic-gradient(from 0deg,transparent 0 30deg,var(--accent) 30deg 70deg,transparent 70deg 120deg,var(--accent) 120deg 160deg,transparent 160deg 210deg,var(--accent) 210deg 250deg,transparent 250deg 300deg,var(--accent) 300deg 340deg,transparent 340deg);
  border-radius:50%;
  opacity:.45
}

.unit-plate {
  color:var(--muted);
  font-family:Consolas,monospace;
  font-size:.55rem;
  line-height:2
}

.unit-plate b {
  color:var(--accent);
  font-size:1.5rem;
  font-weight:400
}

.unit-pipes {
  position:absolute;
  right:-18px;
  top:75px;
  display:flex;
  flex-direction:column;
  gap:18px
}

.unit-pipes span {
  width:17px;
  height:5px;
  border:1px solid var(--warm)
}

.workflow-inline {
  margin:30px 20px 12px;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:12px;
  font-family:Consolas,monospace;
  font-size:.5rem;
  color:var(--muted);
  letter-spacing:.04em
}

.workflow-inline b {
  font-size:1rem;
  color:var(--accent);
  font-weight:400
}

.visual-caption {
  font-family:Consolas,monospace;
  font-size:.47rem;
  text-align:center;
  color:var(--muted);
  padding:0 14px 18px;
  line-height:1.7
}

.project-content {
  padding:34px 36px;
  min-width:0
}

.project-kicker {
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
  font-size:.52rem;
  letter-spacing:.04em;
  color:var(--muted);
  margin-bottom:23px
}

.project-status {
  border:1px solid var(--line);
  padding:4px 8px;
  white-space:nowrap;
  font-family:"Segoe UI",sans-serif;
  font-size:.61rem;
  letter-spacing:0;
  color:var(--warm)
}

.project h3 {
  font-size:clamp(1.8rem,2.6vw,2.6rem);
  line-height:1.12;
  margin-bottom:19px
}

.project-content>p {
  font-size:.86rem;
  color:var(--muted);
  line-height:1.85
}

.tags {
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  gap:7px;
  padding:0;
  margin:21px 0
}

.tags li {
  font-size:.62rem;
  border:1px solid var(--line);
  color:var(--muted);
  padding:4px 9px;
  line-height:1.6
}

.project details {
  border-top:1px solid var(--line);
  margin-block:22px 16px
}

.project summary {
  cursor:pointer;
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding-top:14px;
  list-style:none;
  font-size:.75rem;
  color:var(--text)
}

.project summary::-webkit-details-marker {
  display:none
}

.project summary>span {
  color:var(--accent);
  font-size:1.1rem
}

.project details[open] summary>span {
  transform:rotate(45deg)
}

.project-details {
  padding-top:14px;
  font-size:.8rem;
  color:var(--muted);
  line-height:1.85
}

.project-details p+p {
  margin-top:10px
}

.project-details a {
  text-decoration:underline;
  text-underline-offset:3px
}

.project-details strong {
  color:var(--text);
  font-weight:500
}

.project-grid {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:28px
}

.project-stacked>.project-visual {
  height:285px;
  display:flex;
  flex-direction:column
}

.project-stacked>.project-content {
  padding:32px 34px
}

.pid-diagram {
  display:block;
  flex:1;
  min-height:0;
  width:100%;
  color:var(--accent);
  padding-inline:8px
}

.pid-diagram text {
  font-family:Consolas,monospace;
  font-size:9px
}

.pid-diagram .diagram-heading {
  font-size:7px;
  letter-spacing:1.2px;
  fill:var(--muted)
}

.pid-visual .visual-caption,.deals-visual .visual-caption {
  padding-top:9px
}

.deal-flow {
  display:flex;
  align-items:center;
  justify-content:center;
  gap:17px;
  margin:auto 20px 10px;
  color:var(--warm)
}

.deal-flow>span {
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  font-size:.63rem;
  min-width:67px
}

.deal-flow i {
  display:grid;
  place-items:center;
  font-style:normal;
  font-family:Consolas,monospace;
  font-size:1.4rem;
  width:58px;
  height:58px;
  border:1px solid color-mix(in srgb,var(--warm) 40%,var(--line));
  border-radius:50%
}

.deal-flow>b {
  font-weight:400;
  opacity:.5;
  margin-bottom:27px
}

.signal-line {
  margin:0 25px;
  height:39px;
  color:var(--warm);
  opacity:.5
}

.signal-line svg {
  height:100%;
  width:100%
}

.workbench {
  border-top:1px solid var(--line);
  margin-top:40px;
  padding-top:32px;
  display:grid;
  grid-template-columns:1fr 2fr auto;
  gap:25px;
  align-items:start
}

.workbench-label {
  display:flex;
  align-items:center;
  gap:10px;
  font-size:.57rem;
  color:var(--muted);
  padding-top:4px
}

.workbench h3 {
  font-size:1.25rem;
  letter-spacing:-.02em;
  margin-bottom:9px
}

.workbench p {
  font-size:.8rem;
  color:var(--muted);
  max-width:500px
}

.workbench-badge {
  font-size:.5rem;
  color:var(--warm);
  border:1px solid var(--line);
  padding:5px 8px
}

.toolkit-grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  border-block:1px solid var(--line)
}

.toolkit-item {
  padding:30px 30px 27px 0;
  min-width:0
}

.toolkit-item+.toolkit-item {
  border-left:1px solid var(--line);
  padding-left:30px
}

.toolkit-number {
  color:var(--accent);
  font-size:.63rem
}

.toolkit-item h3 {
  font-size:1.3rem;
  letter-spacing:-.025em;
  margin-block:20px 13px
}

.toolkit-item>p {
  font-size:.83rem;
  color:var(--muted);
  max-width:240px;
  min-height:45px
}

.toolkit-item .tags {
  margin-bottom:0
}

.learning-note {
  display:flex;
  gap:35px;
  align-items:baseline;
  padding-top:26px
}

.learning-note>span {
  color:var(--accent);
  font-size:.55rem;
  flex-shrink:0
}

.learning-note p {
  font-size:.76rem;
  color:var(--muted)
}

.learning-note b {
  font-weight:400;
  margin-inline:10px;
  color:var(--line)
}

.approach-section {
  background:var(--surface-alt);
  border-block:1px solid var(--line)
}

.approach-section>.wrap {
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:0 65px
}

.approach-section .section-label {
  grid-column:1/-1
}

.approach-list {
  padding:0;
  margin:0;
  list-style:none
}

.approach-list li {
  display:flex;
  align-items:baseline;
  gap:23px;
  padding-block:23px;
  border-top:1px solid var(--line)
}

.approach-list li:first-child {
  padding-top:0;
  border-top:0
}

.approach-list li:last-child {
  padding-bottom:0
}

.approach-list li>span:first-child {
  font-family:Consolas,monospace;
  font-size:.65rem;
  color:var(--accent)
}

.approach-list h3 {
  font-size:1.05rem;
  letter-spacing:-.02em;
  margin-bottom:10px
}

.approach-list p {
  font-size:.8rem;
  line-height:1.8;
  color:var(--muted)
}

.approach-symbol {
  margin-left:auto;
  color:var(--line);
  font-size:1.2rem
}

.contact-section {
  padding-block:95px 100px
}

.contact-layout {
  display:grid;
  grid-template-columns:1.4fr 1fr;
  gap:60px;
  align-items:center
}

.contact-layout h2 {
  font-size:clamp(3rem,5vw,5rem)
}

.contact-layout>div>p {
  max-width:510px;
  color:var(--muted);
  font-size:.9rem;
  margin-block:27px
}

.contact-aside {
  text-align:right;
  padding-right:30px
}

.contact-asterisk {
  color:var(--accent);
  font-size:8rem;
  line-height:1;
  display:block;
  font-family:Georgia,serif
}

.contact-aside>p {
  font-family:Georgia,serif;
  font-size:1.4rem!important;
  font-style:italic;
  color:var(--text)!important;
  line-height:1.4;
  margin-block:20px!important;
  margin-left:auto
}

.contact-aside>span:last-child {
  color:var(--muted);
  font-size:.5rem
}

.site-footer {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:25px;
  border-top:1px solid var(--line);
  padding-block:35px
}

.footer-name {
  font-size:.72rem;
  letter-spacing:.13em;
  font-weight:600;
  line-height:1.4
}

.footer-name>span {
  display:block;
  font-family:Consolas,monospace;
  font-weight:400;
  font-size:.45rem;
  letter-spacing:.08em;
  color:var(--muted);
  margin-top:6px
}

.site-footer p {
  font-size:.65rem;
  color:var(--muted)
}

.site-footer .text-link {
  font-size:.7rem
}

@media(min-width:1500px) {
  .hero {
    padding-block:95px;
    min-height:800px
  }
  h1 {
    font-size:6rem
  }
  .section {
    padding-block:115px
  }
}

@media(max-width:1050px) {
  .wrap {
    width:calc(100% - 64px)
  }
  .navigation {
    min-height:84px;
    gap:20px
  }
  .nav-links {
    gap:24px
  }
  .hero {
    gap:30px;
    min-height:650px;
    padding-block:62px
  }
  .engineering-board {
    margin-top:0
  }
  .board-heading {
    padding:16px;
    font-size:.5rem
  }
  .board-footer {
    padding:13px;
    font-size:.38rem
  }
  .hero-footnote {
    font-size:.44rem;
    gap:10px
  }
  .section {
    padding-block:80px
  }
  .about {
    grid-template-columns:.45fr 2fr;
    gap:30px
  }
  .about-columns {
    gap:24px
  }
  .project-content {
    padding:28px
  }
  .project-featured>.project-visual {
    min-height:400px
  }
  .unit-fan {
    width:60px;
    height:60px
  }
  .unit-fan span {
    width:45px;
    height:45px
  }
  .ahu-unit {
    gap:12px;
    padding:14px;
    height:110px
  }
  .workflow-inline {
    font-size:.41rem;
    gap:7px
  }
  .project-stacked>.project-content {
    padding:27px
  }
  .project-kicker {
    font-size:.46rem
  }
  .workbench {
    grid-template-columns:1fr 2fr
  }
  .workbench-badge {
    display:none
  }
  .approach-section>.wrap {
    gap:0 35px
  }
  .toolkit-item {
    padding-right:20px
  }
  .toolkit-item+.toolkit-item {
    padding-left:20px
  }
  .toolkit-item h3 {
    font-size:1.15rem
  }
}

@media(max-width:760px) {
  html {
    scroll-padding-top:90px
  }
  .wrap {
    width:calc(100% - 40px)
  }
  .navigation {
    min-height:76px;
    gap:15px;
    flex-wrap:wrap;
    padding-block:14px
  }
  .brand {
    font-size:.7rem;
    gap:11px
  }
  .brand-mark {
    font-size:2.1rem
  }
  .brand-caption {
    font-size:.45rem
  }
  .theme-toggle {
    margin-left:0;
    width:36px;
    height:36px
  }
  .menu-toggle {
    display:none;
    margin-left:auto;
    width:36px;
    height:36px
  }
  .js .menu-toggle {
    display:grid;
    gap:5px
  }
  .menu-toggle span {
    width:14px;
    height:1px;
    background:currentColor
  }
  .nav-links {
    width:100%;
    order:4;
    justify-content:space-between;
    gap:15px;
    margin:3px 0 0;
    padding-top:12px;
    border-top:1px solid var(--line)
  }
  .js .nav-links {
    display:none
  }
  .js .nav-links.is-open {
    display:flex
  }
  .nav-links a {
    font-size:.75rem
  }
  .nav-links .nav-contact {
    border:0;
    padding:0;
    gap:8px
  }
  .navigation>.theme-toggle {
    margin-left:auto
  }
  .js .navigation>.theme-toggle {
    margin-left:0
  }
  .hero {
    grid-template-columns:1fr;
    gap:45px;
    padding-block:48px 50px;
    min-height:0
  }
  .hero-copy {
    max-width:560px
  }
  .eyebrow {
    font-size:.56rem;
    margin-bottom:23px
  }
  h1 {
    font-size:clamp(3.7rem,11vw,5.7rem);
    margin-bottom:26px
  }
  .hero-intro {
    font-size:1rem;
    max-width:410px
  }
  .hero-description {
    font-size:.86rem
  }
  .hero-actions {
    margin-top:25px;
    gap:25px
  }
  .hero-footnote {
    margin-top:30px;
    font-size:.44rem;
    gap:20px
  }
  .engineering-board {
    width:min(100% - 12px,490px);
    margin:0 auto 18px;
    transform:rotate(-1deg);
    box-shadow:9px 11px 0 -1px var(--bg),9px 11px 0 0 var(--line)
  }
  .system-diagram {
    max-height:365px
  }
  .board-heading {
    font-size:.5rem
  }
  .board-footer {
    font-size:.4rem
  }
  .discipline-strip {
    margin:0
  }
  .discipline-strip>.wrap {
    display:grid;
    grid-template-columns:1fr auto 1fr;
    row-gap:10px;
    padding-block:20px;
    font-size:.55rem;
    letter-spacing:.07em
  }
  .discipline-strip span:nth-of-type(2n) {
    text-align:right
  }
  .discipline-strip i:nth-of-type(2) {
    display:none
  }
  .discipline-strip i {
    font-size:1rem
  }
  .section {
    padding-block:60px
  }
  .section-label {
    font-size:.53rem;
    margin-bottom:30px;
    line-height:1.8
  }
  .section-label>span:last-child:not(:first-child) {
    max-width:170px;
    text-align:right;
    font-size:.48rem
  }
  .about {
    display:block
  }
  .about .section-label {
    margin-top:0;
    justify-content:space-between
  }
  .about h2 {
    font-size:2.45rem
  }
  .about-columns {
    grid-template-columns:1fr;
    gap:17px;
    margin-bottom:23px
  }
  .about-columns p {
    font-size:.88rem;
    max-width:600px
  }
  .section-heading {
    align-items:flex-start;
    flex-direction:column;
    gap:20px;
    margin-bottom:30px
  }
  .section-heading h2 {
    font-size:2.6rem
  }
  .section-heading>p {
    font-size:.8rem;
    max-width:100%
  }
  .project-featured {
    grid-template-columns:1fr;
    margin-bottom:20px
  }
  .project-featured>.project-visual {
    min-height:310px;
    border-right:0;
    border-bottom:1px solid var(--line)
  }
  .unit-illustration {
    width:72%;
    max-width:320px;
    margin:auto
  }
  .ahu-unit {
    height:108px
  }
  .workflow-inline {
    font-size:.45rem;
    margin-top:24px
  }
  .project-content,.project-stacked>.project-content {
    padding:25px
  }
  .project-kicker {
    font-size:.49rem;
    margin-bottom:20px
  }
  .project h3 {
    font-size:2rem
  }
  .project-content>p {
    font-size:.84rem
  }
  .project-grid {
    grid-template-columns:1fr;
    gap:20px
  }
  .project-stacked>.project-visual {
    height:265px
  }
  .project-content .text-link {
    font-size:.78rem
  }
  .visual-caption {
    font-size:.45rem
  }
  .workbench {
    grid-template-columns:1fr;
    gap:16px;
    margin-top:28px;
    padding-top:25px
  }
  .workbench h3 {
    font-size:1.17rem
  }
  .workbench p {
    font-size:.8rem
  }
  .toolkit-grid {
    grid-template-columns:1fr
  }
  .toolkit-item,.toolkit-item+.toolkit-item {
    border-left:0;
    padding:25px 0
  }
  .toolkit-item+.toolkit-item {
    border-top:1px solid var(--line)
  }
  .toolkit-item h3 {
    font-size:1.3rem;
    margin-top:12px
  }
  .toolkit-item>p {
    max-width:100%;
    min-height:0
  }
  .toolkit-item .tags {
    margin-top:16px
  }
  .learning-note {
    display:block;
    padding-top:22px
  }
  .learning-note p {
    margin-top:12px;
    line-height:2
  }
  .learning-note b {
    margin-inline:5px
  }
  .approach-section>.wrap {
    display:block
  }
  .approach-section h2 {
    font-size:2.65rem;
    margin-bottom:32px
  }
  .approach-list li {
    gap:16px;
    padding-block:22px
  }
  .approach-list h3 {
    font-size:1.05rem
  }
  .approach-list p {
    font-size:.81rem
  }
  .contact-layout {
    grid-template-columns:1fr;
    gap:0
  }
  .contact-layout h2 {
    font-size:3.3rem
  }
  .contact-layout>div>p {
    font-size:.85rem;
    margin-block:22px
  }
  .contact-aside {
    display:none
  }
  .site-footer {
    flex-wrap:wrap;
    padding-block:28px;
    gap:20px
  }
  .site-footer p {
    order:3;
    width:100%;
    font-size:.6rem
  }
  .site-footer .text-link {
    margin-left:auto
  }
  .button {
    font-size:.8rem;
    gap:26px;
    min-height:48px
  }
  .hero .text-link {
    font-size:.78rem
  }
}

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

/* Gallery controls and image inspection enhance the existing document. */
[hidden] { display: none !important; }
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 50;
  transform: scaleX(var(--reading-progress, 0));
  transform-origin: left;
  background: var(--accent);
  pointer-events: none;
}
.hero-disciplines {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 26px;
}
.hero-disciplines a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: .75rem;
  color: var(--muted);
  min-height: 35px;
  border-bottom: 1px solid var(--line);
}
.hero-disciplines a:hover { color: var(--accent); }
.project-controls {
  display: none;
  gap: 9px;
  flex-wrap: wrap;
  padding-bottom: 10px;
}
.js .project-controls { display: flex; }
.filter-button {
  display: inline-flex;
  align-items: center;
  gap: 15px;
  min-height: 46px;
  padding: 10px 17px;
  border: 1px solid var(--line);
  border-radius: 3px;
  color: var(--muted);
  background: var(--bg);
  cursor: pointer;
  font-size: .8rem;
}
.filter-button span { font-family: Consolas, monospace; font-size: .7rem; opacity: .75; }
.filter-button:hover { border-color: var(--accent); color: var(--text); }
.filter-button.is-active { background: var(--accent); color: var(--ink); border-color: var(--accent); }
.filter-status { display: none; color: var(--muted); font-size: .75rem; margin: 7px 0 25px; }
.js .filter-status { display: block; }
.project-gallery { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px; }
.project-gallery .gallery-card {
  min-width: 0;
  display: flex;
  flex-direction: column;
  transition: border-color .2s, transform .2s;
}
.gallery-card:hover, .gallery-card:focus-within { border-color: var(--muted); }
@media(hover: hover) { .gallery-card:hover { transform: translateY(-3px); } }
.project-gallery .project-visual {
  height: 290px;
  min-height: 0;
  border-bottom: 1px solid var(--line);
  border-right: 0;
  display: flex;
  flex-direction: column;
}
.project-gallery .project-content { padding: 30px; flex: 1; }
.project-gallery .project-content h3 { font-size: clamp(1.6rem, 2.3vw, 2.2rem); }
.project-gallery .evidence-visual { height: 330px; }
.project-gallery .load-chart { min-height: 0; height: 155px; object-fit: contain; }
.project-gallery .model-thumb-line { padding-bottom: 10px; }
.project-gallery .model-thumb-line img { width: 64px; height: 64px; }
.project-gallery .visual-caption { margin-top: auto; padding-bottom: 15px; font-size: .7rem; }
.project-gallery .unit-illustration { max-width: 320px; }
.project-gallery .ahu-unit { height: 105px; }
.model-preview-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 9px;
  margin: auto;
  font-size: .72rem;
  color: var(--accent);
}
.model-preview-link img { width: 128px; height: 128px; background: white; }
.model-thumb-line a { flex-shrink: 0; }
.table-scroll { overflow-x: auto; margin-top: 20px; }
.room-data { width: 100%; border-collapse: collapse; font-size: .8rem; font-variant-numeric: tabular-nums; }
.room-data caption { text-align: left; color: var(--text); margin-bottom: 10px; }
.room-data th, .room-data td { border-bottom: 1px solid var(--line); padding: 7px 10px; text-align: left; }
.room-data tbody th { font-weight: 400; }
.viewer-open { overflow: hidden; }
.asset-viewer {
  width: min(1100px, calc(100vw - 36px));
  max-width: none;
  max-height: 92dvh;
  padding: 25px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--bg);
  color: var(--text);
  overflow-y: auto;
  box-shadow: 0 20px 90px #0008;
}
.asset-viewer::backdrop { background: #020807d9; backdrop-filter: blur(5px); }
.viewer-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 15px; }
.viewer-header .eyebrow { margin-bottom: 8px; font-size: .6rem; }
.viewer-header h2 { font-size: 1.5rem; }
.viewer-close { min-height: 44px; padding: 7px 15px; background: var(--surface); color: var(--text); border: 1px solid var(--line); border-radius: 3px; cursor: pointer; font-size: .8rem; white-space: nowrap; }
.viewer-close span { font-size: 1.2rem; margin-left: 8px; }
.viewer-caption { color: var(--muted); font-size: .85rem; margin-block: 15px; }
.viewer-toolbar { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; margin-bottom: 12px; }
.viewer-toolbar button { min-width: 44px; min-height: 44px; padding: 7px 15px; border: 1px solid var(--line); border-radius: 3px; background: var(--surface); color: var(--text); cursor: pointer; }
.viewer-toolbar button:hover:not(:disabled), .viewer-close:hover { border-color: var(--accent); }
.viewer-toolbar button:disabled { opacity: .4; cursor: default; }
#zoom-level { min-width: 65px; text-align: center; font-family: Consolas, monospace; font-size: .8rem; }
.viewer-stage { height: min(60dvh, 620px); min-height: 180px; overflow: auto; padding: 16px; background: var(--board); border: 1px solid var(--line); overscroll-behavior: contain; }
.viewer-stage img { display: block; height: auto; max-width: none; margin: auto; }
.viewer-help, .viewer-error { margin-top: 12px; font-size: .75rem; color: var(--muted); }
@media(max-width:760px) {
  .project-gallery { grid-template-columns: 1fr; gap: 22px; }
  .project-gallery .project-content { padding: 24px; }
  .filter-button { font-size: .75rem; padding-inline: 12px; gap: 10px; }
  .project-controls { gap: 8px; }
  .asset-viewer { width: calc(100vw - 20px); padding: 16px; max-height: 94dvh; }
  .viewer-stage { height: 48dvh; padding: 10px; }
  .viewer-toolbar { gap: 6px; }
}

/* Readable project disclosures and compact diagrams at phone widths. */
.portrait-card {
  margin: 0 0 0 15px;
  border: 1px solid var(--line);
  background: var(--surface);
}
.portrait-window {
  aspect-ratio: 4 / 4.5;
  overflow: hidden;
}
.portrait-window img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.65);
  transform-origin: 50% 29%;
}
.portrait-card .portrait-window img {
  transform: none;
  object-position: 50% 35%;
}
.portrait-card figcaption {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 19px 22px;
  font-family: Consolas, monospace;
  font-size: .72rem;
  letter-spacing: .05em;
}
.portrait-card figcaption span:last-child {
  color: var(--muted);
  font-size: .6rem;
}
.evidence-visual {
  padding-bottom: 8px;
}
.load-chart {
  display: block;
  width: 100%;
  height: auto;
}
.model-thumb-line {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 0 25px 15px;
}
.model-thumb-line img {
  width: 86px;
  height: 86px;
  object-fit: contain;
  background: white;
}
.model-thumb-line p {
  font-size: .8rem;
}
.model-thumb-line span {
  font-size: .7rem;
  color: var(--muted);
}
.graph-visual > img {
  width: 100%;
  min-height: 0;
  flex: 1;
  object-fit: contain;
}
.model-evidence > img {
  width: 128px;
  height: 128px;
  object-fit: contain;
  margin: auto;
  background: white;
}
.software-heading {
  padding: 55px 0 28px;
}
.software-heading p {
  color: var(--muted);
  font-size: .9rem;
  margin-top: 12px;
}
h1 {
  font-size: clamp(2.65rem, 4.25vw, 4.4rem);
  line-height: 1.1;
}
.roadmap-section {
  border-top: 1px solid var(--line);
}
.roadmap-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.roadmap-list li {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 30px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
}
.roadmap-state {
  font-family: Consolas, monospace;
  font-size: .7rem;
  color: var(--warm);
  padding-top: 4px;
}
.roadmap-list h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}
.roadmap-list p {
  max-width: 660px;
  font-size: .9rem;
  color: var(--muted);
}
.visual-caption {
  font-size: .75rem;
}
.project-kicker {
  font-size: .68rem;
  flex-wrap: wrap;
}
.project-status {
  font-size: .75rem;
}
.tags li {
  font-size: .75rem;
}
.icon-button {
  min-width: 44px;
  min-height: 44px;
}
.theme-toggle {
  display: none;
}
.js .theme-toggle {
  display: grid;
}
.contact-layout {
  grid-template-columns: 1fr;
}
@media(max-width: 760px) {
  .portrait-card {
    width: min(100%, 440px);
    margin: 0 auto;
  }
  h1 {
    font-size: clamp(2.45rem, 7.8vw, 3.8rem);
  }
  .roadmap-list li {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .hero {
    gap: 32px;
  }
  .deal-flow {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
    gap: clamp(5px, 2vw, 12px);
    margin-inline: 14px;
  }
  .deal-flow > span {
    min-width: 0;
  }
  .deal-flow i {
    width: 46px;
    height: 46px;
  }
  .nav-links {
    flex-wrap: wrap;
  }
  .nav-links a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
  }
}

@font-face { font-family: 'Space Grotesk'; src: url('assets/fonts/space-grotesk.ttf') format('truetype'); font-weight: 300 700; font-display: swap; }
@font-face { font-family: 'Manrope'; src: url('assets/fonts/manrope.ttf') format('truetype'); font-weight: 200 800; font-display: swap; }
body { font-family: 'Manrope', Arial, sans-serif; }
h1, h2, h3, .brand, .nav-links, .button, .filter-button, .footer-name { font-family: 'Space Grotesk', Arial, sans-serif; }
button, input { font-family: inherit; }
h1 { font-weight: 600; letter-spacing: -.055em; line-height: 1.08; }
h2 { font-weight: 500; letter-spacing: -.045em; }
.accent-type { font-family: inherit; color: var(--accent); font-style: normal; font-weight: 500; }
.brand-mark span { font-family: inherit; font-style: normal; }
.hero { position: relative; isolation: isolate; }
.hero::before { content: ''; position: absolute; inset: 0 -3% 0 45%; z-index: -1; pointer-events: none; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 52px 52px; opacity: .25; mask-image: radial-gradient(ellipse, black, transparent 72%); }
.portrait-card { position: relative; border-radius: 3px; }
.portrait-card::after { content: ''; position: absolute; width: 40px; height: 40px; top: -9px; right: -9px; border-top: 2px solid var(--accent); border-right: 2px solid var(--accent); pointer-events: none; }
.screenshot-visual { height: 340px; display: flex; flex-direction: column; padding: 0; background: #202731; overflow: hidden; }
.screenshot-link { position: relative; display: block; flex: 1; min-height: 0; overflow: hidden; }
.screenshot-link img { display: block; width: 100%; height: 100%; object-fit: contain; transition: transform .65s cubic-bezier(.2,.7,.2,1); }
.shot-overlay { position: absolute; inset: auto 0 0; padding: 24px 16px 12px; display: flex; justify-content: space-between; gap: 12px; background: linear-gradient(transparent, #111a26eb); color: #f5f7fa; font-size: .62rem; letter-spacing: .06em; }
.shot-overlay span:last-child { color: #d6ee8d; white-space: nowrap; }
.shot-switches { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 0 12px; padding: 0 16px; min-height: 48px; color: #b5beca; background: #182029; font-size: .68rem; }
.shot-switches a { display: inline-flex; align-items: center; gap: 18px; min-height: 48px; color: #d6ee8d; }
.viewer-navigation { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.viewer-navigation button { min-height: 44px; padding: 8px 14px; border: 1px solid var(--line); color: var(--text); background: var(--surface); cursor: pointer; }
.viewer-navigation button:hover:not(:disabled) { border-color: var(--accent); }
.viewer-navigation button:disabled { opacity: .35; cursor: default; }
#viewer-position { font-size: .8rem; color: var(--muted); }
.motion-enabled .will-reveal { opacity: 0; translate: 0 25px; transition: opacity .7s ease, translate .7s cubic-bezier(.2,.7,.2,1); }
.motion-enabled .will-reveal.is-visible { opacity: 1; translate: 0 0; }
.motion-enabled .hero-copy > *, .motion-enabled .portrait-card { animation: enter-view .85s both cubic-bezier(.2,.7,.2,1); }
.motion-enabled .hero-copy > :nth-child(2) { animation-delay: .08s; }
.motion-enabled .hero-copy > :nth-child(3) { animation-delay: .16s; }
.motion-enabled .hero-copy > :nth-child(4) { animation-delay: .24s; }
.motion-enabled .hero-copy > :nth-child(5) { animation-delay: .32s; }
.motion-enabled .portrait-card { animation-delay: .18s; }
.motion-enabled .portrait-card .portrait-window img { transform: scale(1.035) translate(var(--portrait-x, 0px), var(--portrait-y, 0px)); transition: transform .35s ease-out; }
@keyframes enter-view { from { opacity: 0; translate: 0 20px; } to { opacity: 1; translate: 0 0; } }
@media (hover: hover) and (pointer: fine) { .screenshot-link:hover img { transform: scale(1.025); } .hero-disciplines a span, .button span { display: inline-block; transition: transform .25s; } .hero-disciplines a:hover span, .button:hover span { transform: translate(3px,-3px); } }
@media (max-width: 760px) { .screenshot-visual { height: 290px; } .hero::before { inset: 30% 0 0; } .shot-overlay { font-size: .55rem; } }
@media (prefers-reduced-motion: reduce) { .motion-enabled .will-reveal { opacity: 1; translate: none; } .motion-enabled .portrait-card .portrait-window img { transform: none; } }