:root {
  --paper: #f7f7f3;
  --paper-deep: #ecece6;
  --forest: #173f2b;
  --forest-deep: #0f2b1d;
  --ink: #20221f;
  --muted: #676a63;
  --line: rgba(32, 34, 31, 0.18);
  --mint: #9effbf;
  --gold: #f4d35e;
  --coral: #ff8c69;
  --display: "Space Grotesk", system-ui, sans-serif;
  --sans: "General Sans", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --page: min(1280px, calc(100vw - 48px));
  --visible-cards: 3;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background-color: var(--paper);
  background-image:
    linear-gradient(to right, rgba(32, 34, 31, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(32, 34, 31, 0.045) 1px, transparent 1px);
  background-size: calc(100% / 12) 160px;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
}

a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--forest);
  outline-offset: 4px;
}
section { scroll-margin-top: 92px; }
.skip-link {
  position: fixed;
  z-index: 999;
  left: 16px;
  top: -80px;
  padding: 12px 18px;
  background: var(--mint);
  color: var(--forest-deep);
  font: 600 12px var(--mono);
  text-transform: uppercase;
}
.skip-link:focus { top: 16px; }

.site-header {
  align-items: center;
  backdrop-filter: blur(16px);
  background: color-mix(in srgb, var(--paper) 91%, transparent);
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 38px;
  height: 72px;
  left: 0;
  padding: 0 max(24px, calc((100vw - 1280px) / 2));
  position: fixed;
  right: 0;
  top: 0;
  z-index: 100;
}
.brand-mark, .footer-mark {
  align-items: center;
  background: var(--forest);
  color: white;
  display: inline-flex;
  font: 700 17px/1 var(--display);
  height: 42px;
  justify-content: center;
  letter-spacing: -0.08em;
  text-decoration: none;
  width: 42px;
}
.site-nav { display: flex; gap: 30px; justify-content: flex-end; }
.site-nav a {
  color: var(--ink);
  font: 600 10px var(--mono);
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}
.site-nav a span { color: var(--muted); margin-right: 6px; }
.site-nav a:hover { color: var(--forest); }
.header-contact {
  background: var(--forest);
  color: white;
  font: 600 11px var(--mono);
  letter-spacing: 0.08em;
  padding: 12px 18px;
  text-decoration: none;
  text-transform: uppercase;
}

.section-grid, .section-shell, .proof-strip, .site-footer { margin-inline: auto; width: var(--page); }
.hero {
  align-items: stretch;
  display: grid;
  grid-template-columns: 7fr 5fr;
  min-height: 760px;
  padding-top: 72px;
}
.hero-copy {
  align-items: flex-start;
  border-left: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 96px 7vw 72px 32px;
}
.eyebrow, .section-index, .project-meta, .node-kicker, .figure-caption {
  font: 600 10px var(--mono);
  letter-spacing: 0.11em;
  text-transform: uppercase;
}
.eyebrow { align-items: center; display: flex; gap: 10px; margin: 0 0 28px; }
.signal-dot { background: var(--mint); border: 1px solid var(--forest); height: 9px; width: 9px; }
h1, h2, h3 { font-family: var(--display); letter-spacing: -0.045em; }
.hero h1 {
  font-size: clamp(54px, 6.6vw, 98px);
  line-height: 0.91;
  margin: 0;
  max-width: 800px;
}
.hero h1 em { color: var(--forest); font-style: normal; }
.hero-lead { color: #454942; font-size: clamp(19px, 2vw, 25px); line-height: 1.45; margin: 34px 0 0; max-width: 690px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 42px; }
.button {
  align-items: center;
  border: 1px solid transparent;
  display: inline-flex;
  font: 600 11px var(--mono);
  gap: 18px;
  justify-content: center;
  letter-spacing: 0.08em;
  min-height: 48px;
  padding: 0 22px;
  text-decoration: none;
  text-transform: uppercase;
}
.button-primary { background: var(--forest); color: white; }
.button-quiet { border-color: var(--forest); color: var(--forest); }
.button:hover { transform: translateY(-2px); transition: transform 160ms ease; }
.hero-social { display: flex; flex-wrap: wrap; gap: 24px; margin-top: 54px; }
.hero-social a, .text-link {
  border-bottom: 1px solid currentColor;
  font: 600 11px var(--mono);
  letter-spacing: 0.07em;
  padding-bottom: 3px;
  text-decoration: none;
  text-transform: uppercase;
}

.hero-system {
  background: var(--paper-deep);
  border-inline: 1px solid var(--line);
  min-height: 688px;
  overflow: hidden;
  position: relative;
}
.system-grid {
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 25% 25%;
  inset: 0;
  opacity: 0.65;
  position: absolute;
}
.hero-system::before, .hero-system::after {
  border: 1px solid color-mix(in srgb, var(--forest) 30%, transparent);
  border-radius: 50%;
  content: "";
  left: 50%;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
}
.hero-system::before { height: 58%; width: 72%; }
.hero-system::after { height: 82%; width: 102%; }
.system-node { background: var(--paper); border: 1px solid var(--forest); padding: 14px; position: absolute; z-index: 2; }
.system-node span { display: block; font: 10px var(--mono); text-transform: uppercase; }
.system-node strong { display: block; font: 700 13px var(--display); margin-top: 5px; }
.system-core { left: 50%; padding: 26px; text-align: center; top: 50%; transform: translate(-50%, -50%); width: 150px; }
.system-core strong { color: var(--forest); font-size: 38px; letter-spacing: -0.08em; margin: 5px 0; }
.node-ai { right: 7%; top: 17%; }
.node-cloud { bottom: 18%; left: 5%; }
.node-sre { bottom: 12%; right: 7%; }
.node-ai::before, .node-cloud::before, .node-sre::before { background: var(--mint); content: ""; height: 8px; position: absolute; right: -4px; top: -4px; width: 8px; }
.figure-caption { bottom: 16px; color: var(--muted); position: absolute; right: 18px; }

.proof-strip { border: 1px solid var(--line); display: grid; grid-template-columns: repeat(4, 1fr); }
.proof-strip article { background: color-mix(in srgb, white 64%, transparent); min-height: 168px; padding: 30px; }
.proof-strip article + article { border-left: 1px solid var(--line); }
.proof-strip strong { color: var(--forest); display: block; font: 700 44px var(--display); letter-spacing: -0.06em; }
.proof-strip span { color: var(--muted); display: block; font-size: 13px; line-height: 1.45; margin-top: 12px; max-width: 190px; }

.section-shell { padding-block: 132px 0; }
.section-heading { display: grid; gap: 24px; grid-template-columns: 2fr 1fr; margin-bottom: 54px; }
.section-index { color: var(--forest); grid-column: 1 / -1; margin: 0; }
.section-heading h2 { font-size: clamp(38px, 5vw, 68px); line-height: 0.98; margin: 0; max-width: 820px; }
.section-heading > p:last-child, .credential-heading > div > p:last-child { color: var(--muted); font-size: 17px; margin: 0; max-width: 520px; }
.project-mosaic { display: grid; grid-template-columns: 2fr 1fr; }
.project-card { background: white; border: 1px solid var(--line); min-height: 330px; padding: 38px; }
.project-featured { grid-row: span 2; min-height: 660px; padding: 54px; }
.project-meta { color: var(--muted); display: flex; justify-content: space-between; }
.project-card h3 { font-size: clamp(28px, 3vw, 48px); line-height: 1; margin: 58px 0 22px; }
.project-featured h3 { font-size: clamp(42px, 5vw, 72px); max-width: 680px; }
.project-card > p { color: var(--muted); font-size: 16px; max-width: 720px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 32px 0 0; padding: 0; }
.tag-list li { background: var(--paper); border: 1px solid var(--line); font: 10px var(--mono); padding: 7px 9px; text-transform: uppercase; }
.architecture-flow { align-items: center; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 12px; margin-top: 90px; padding-top: 28px; }
.architecture-flow span { border: 1px solid var(--forest); font: 600 10px var(--mono); padding: 9px 12px; text-transform: uppercase; }
.architecture-flow i { color: var(--forest); font-style: normal; }
.project-number { border-top: 1px solid var(--line); display: flex; flex-direction: column; margin-top: 32px; padding-top: 24px; }
.project-number strong { color: var(--forest); font: 700 28px var(--display); }
.project-number span { color: var(--muted); font-size: 12px; margin-top: 4px; }
.text-link { display: inline-block; margin-top: 28px; }
code { background: var(--paper-deep); font: 12px var(--mono); padding: 2px 5px; }

.capability-grid { border: 1px solid var(--line); display: grid; grid-template-columns: repeat(4, 1fr); }
.capability-card { background: white; min-height: 340px; padding: 34px; }
.capability-card + .capability-card { border-left: 1px solid var(--line); }
.capability-card > span { color: var(--muted); font: 10px var(--mono); }
.capability-card h3 { font-size: 25px; margin: 72px 0 18px; }
.capability-card p { color: var(--muted); font-size: 14px; }
.capability-card small { border-top: 1px solid var(--line); display: block; font: 10px/1.6 var(--mono); margin-top: 34px; padding-top: 18px; text-transform: uppercase; }

.experience .section-heading { grid-template-columns: 1fr; }
.timeline { border-top: 1px solid var(--line); list-style: none; margin: 0; padding: 0; }
.timeline li { border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 1fr 3fr; padding: 30px 0; }
.timeline-date { color: var(--muted); font: 11px var(--mono); text-transform: uppercase; }
.timeline h3 { font-size: 25px; margin: 0; }
.timeline p { color: var(--muted); margin: 8px 0 0; }

.credential-heading { align-items: end; grid-template-columns: 1fr auto; }
.credential-heading .section-index { margin-bottom: 24px; }
.credential-heading h2 { margin-bottom: 24px; }
.carousel-controls { align-items: center; display: flex; gap: 10px; }
.carousel-controls button {
  align-items: center;
  background: var(--paper);
  border: 1px solid var(--forest);
  color: var(--forest);
  cursor: pointer;
  display: inline-flex;
  font-size: 20px;
  height: 48px;
  justify-content: center;
  width: 48px;
}
.carousel-controls button:hover:not(:disabled) { background: var(--forest); color: white; }
.carousel-controls button:disabled { cursor: not-allowed; opacity: 0.28; }
.carousel-controls output { font: 600 10px var(--mono); min-width: 68px; text-align: center; }
.credential-track {
  --carousel-gap: 14px;
  cursor: grab;
  display: grid;
  gap: var(--carousel-gap);
  grid-auto-columns: calc((100% - (var(--visible-cards) - 1) * var(--carousel-gap)) / var(--visible-cards));
  grid-auto-flow: column;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  padding: 4px 2px 22px;
  scrollbar-color: var(--forest) var(--paper-deep);
  scrollbar-width: thin;
  scroll-snap-type: inline mandatory;
}
.credential-track.is-dragging { cursor: grabbing; scroll-snap-type: none; }
.credential-card {
  background: white;
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  min-height: 330px;
  padding: 30px;
  scroll-snap-align: start;
  scroll-snap-stop: always;
}
.credential-card:nth-child(4n + 1) { border-top: 4px solid var(--mint); }
.credential-card:nth-child(4n + 2) { border-top: 4px solid var(--gold); }
.credential-card:nth-child(4n + 3) { border-top: 4px solid var(--coral); }
.credential-card:nth-child(4n) { border-top: 4px solid var(--forest); }
.credential-number { color: var(--muted); font: 10px var(--mono); }
.credential-card p { color: var(--forest); font: 600 11px var(--mono); margin: 54px 0 10px; text-transform: uppercase; }
.credential-card h3 { font-size: 27px; line-height: 1.05; margin: 0; }
.credential-card small { border-top: 1px solid var(--line); color: var(--muted); font: 10px/1.5 var(--mono); margin-top: auto; padding-top: 20px; text-transform: uppercase; }
.carousel-help { color: var(--muted); font: 10px var(--mono); letter-spacing: 0.04em; margin-top: 14px; text-transform: uppercase; }

.cv-grid { border: 1px solid var(--line); display: grid; grid-template-columns: repeat(4, 1fr); }
.cv-card { background: white; min-height: 330px; padding: 32px; }
.cv-card + .cv-card { border-left: 1px solid var(--line); }
.cv-card > span { color: var(--muted); font: 10px var(--mono); }
.cv-card h3 { font-size: 27px; margin: 60px 0 16px; }
.cv-card p { color: var(--muted); font-size: 14px; }
.cv-card div { border-top: 1px solid var(--line); display: flex; gap: 18px; margin-top: 32px; padding-top: 20px; }
.cv-card a { color: var(--forest); font: 600 10px var(--mono); text-decoration: none; text-transform: uppercase; }
.cv-card a:hover { text-decoration: underline; }

.contact-section { background: var(--forest); color: white; margin-top: 132px; padding: 100px max(24px, calc((100vw - 1280px) / 2)); }
.contact-section .section-index { color: var(--mint); }
.contact-section h2 { font-size: clamp(46px, 7vw, 90px); line-height: 0.94; margin: 38px 0 28px; max-width: 960px; }
.contact-section > p:not(.section-index) { color: rgba(255,255,255,.72); font-size: 18px; max-width: 650px; }
.contact-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 42px; }
.button-light { background: white; color: var(--forest); }
.button-outline-light { border-color: rgba(255,255,255,.6); color: white; }

.site-footer { align-items: flex-end; display: flex; justify-content: space-between; padding-block: 54px; }
.site-footer > div { align-items: center; display: flex; gap: 20px; }
.site-footer > div:last-child { align-items: flex-end; flex-direction: column; gap: 4px; text-align: right; }
.site-footer p, .site-footer a { color: var(--muted); font: 10px/1.6 var(--mono); margin: 0; text-decoration: none; text-transform: uppercase; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity 600ms ease, transform 600ms ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  :root { --visible-cards: 2; }
  .site-header { gap: 16px; }
  .site-nav { gap: 14px; }
  .site-nav a span { display: none; }
  .hero { grid-template-columns: 1fr; }
  .hero-copy { min-height: 680px; padding-right: 12vw; }
  .hero-system { min-height: 560px; }
  .proof-strip { grid-template-columns: repeat(2, 1fr); }
  .proof-strip article:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .proof-strip article:nth-child(4) { border-top: 1px solid var(--line); }
  .section-heading { grid-template-columns: 1fr; }
  .project-mosaic { grid-template-columns: 1fr; }
  .project-featured { min-height: 620px; }
  .capability-grid, .cv-grid { grid-template-columns: repeat(2, 1fr); }
  .capability-card:nth-child(3), .cv-card:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .capability-card:nth-child(4), .cv-card:nth-child(4) { border-top: 1px solid var(--line); }
  .credential-heading { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  :root { --page: calc(100vw - 28px); --visible-cards: 1; }
  body { background-size: 25% 120px; }
  .site-header { grid-template-columns: auto 1fr; height: 64px; padding-inline: 14px; }
  .brand-mark { height: 38px; width: 38px; }
  .site-nav { justify-content: flex-start; overflow-x: auto; }
  .site-nav a { white-space: nowrap; }
  .site-nav a:nth-child(2) { display: none; }
  .header-contact { display: none; }
  .hero { padding-top: 64px; }
  .hero-copy { border-right: 1px solid var(--line); min-height: 660px; padding: 78px 20px 58px; }
  .hero h1 { font-size: clamp(49px, 15vw, 72px); }
  .hero-lead { font-size: 18px; }
  .hero-actions { align-items: stretch; flex-direction: column; width: 100%; }
  .button { width: 100%; }
  .hero-social { margin-top: 40px; }
  .hero-system { min-height: 470px; }
  .node-ai { right: 4%; top: 12%; }
  .node-cloud { bottom: 15%; left: 3%; }
  .node-sre { bottom: 8%; right: 3%; }
  .proof-strip { grid-template-columns: 1fr; }
  .proof-strip article + article { border-left: 0; border-top: 1px solid var(--line); }
  .section-shell { padding-top: 92px; }
  .section-heading { margin-bottom: 38px; }
  .section-heading h2 { font-size: 43px; }
  .project-card, .project-featured { min-height: auto; padding: 28px; }
  .project-card h3, .project-featured h3 { font-size: 38px; margin-top: 44px; }
  .architecture-flow { margin-top: 52px; }
  .capability-grid, .cv-grid { grid-template-columns: 1fr; }
  .capability-card + .capability-card, .cv-card + .cv-card { border-left: 0; border-top: 1px solid var(--line); }
  .timeline li { gap: 20px; grid-template-columns: 1fr; }
  .carousel-controls { margin-top: 10px; }
  .credential-card { min-height: 300px; }
  .contact-section { margin-top: 92px; padding-block: 76px; }
  .contact-section h2 { font-size: 52px; }
  .site-footer, .site-footer > div { align-items: flex-start; flex-direction: column; }
  .site-footer > div:last-child { align-items: flex-start; margin-top: 34px; text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}