:root {
  color-scheme: dark;
  --ink: #0b1018;
  --panel: #111925;
  --panel-soft: #151f2d;
  --line: #273445;
  --text: #f5f7f8;
  --muted: #a9b5c2;
  --accent: #6de7d2;
  --accent-2: #f2b84b;
  --max: 1180px;
  --header-height: 5.25rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 1.5rem); }
body {
  margin: 0;
  background:
    linear-gradient(90deg, transparent calc(50% - 1px), rgba(255,255,255,.025) 50%, transparent calc(50% + 1px)),
    var(--ink);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: .75rem;
  left: .75rem;
  padding: .7rem 1rem;
  background: var(--accent);
  color: var(--ink);
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  width: 100%;
  background: rgba(11, 16, 24, .96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}
.header-inner {
  width: min(var(--max), calc(100% - 3rem));
  min-height: var(--header-height);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: inline-flex; align-items: center; gap: .8rem; font-weight: 720; letter-spacing: -.02em; }
.brand-mark {
  width: 2.35rem;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-size: .72rem;
  letter-spacing: .08em;
}
.desktop-nav { display: flex; align-items: center; gap: 2rem; font-size: .9rem; }
.desktop-nav a:not(.nav-contact) { color: var(--muted); }
.desktop-nav a:hover, .desktop-nav a:focus-visible, .mobile-menu a:hover, .mobile-menu a:focus-visible { color: var(--accent); }
.nav-contact { padding: .65rem 1rem; border: 1px solid var(--line); }
.mobile-menu { display: none; }

main, footer { width: min(var(--max), calc(100% - 3rem)); margin-inline: auto; }
.hero { min-height: 43rem; display: grid; grid-template-columns: minmax(0, 1fr) 19rem; gap: clamp(3rem, 8vw, 8rem); align-items: center; padding: 6rem 0; }
.eyebrow, .section-number, .note-label, .project-meta, .footer-kicker {
  margin: 0;
  color: var(--accent);
  font-size: .78rem;
  font-weight: 760;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.eyebrow { display: flex; align-items: center; gap: .75rem; }
.eyebrow span { width: 1.8rem; height: 1px; background: var(--accent); }
h1 { max-width: 55rem; margin: 1.5rem 0 1.65rem; font-size: clamp(3.4rem, 8vw, 7rem); line-height: .94; letter-spacing: -.065em; font-weight: 680; }
h1 em { color: var(--accent); font-style: normal; font-weight: 420; }
.hero-intro { max-width: 42rem; margin: 0; color: var(--muted); font-size: clamp(1.06rem, 1.8vw, 1.28rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.5rem; }
.button { min-height: 3.1rem; display: inline-flex; align-items: center; gap: .8rem; padding: .8rem 1.15rem; border: 1px solid var(--line); font-weight: 700; font-size: .9rem; }
.button-primary { background: var(--accent); border-color: var(--accent); color: var(--ink); }
.button:hover, .button:focus-visible { transform: translateY(-2px); border-color: var(--accent); }
.hero-note { position: relative; padding: 2rem; background: var(--panel); border: 1px solid var(--line); box-shadow: 1.25rem 1.25rem 0 rgba(109,231,210,.06); }
.note-index { position: absolute; top: 1rem; right: 1rem; color: var(--accent-2); font-family: ui-monospace, monospace; font-size: .78rem; }
.note-label { margin-top: 1.6rem; color: var(--muted); }
.note-value { margin: .45rem 0 0; font-weight: 650; line-height: 1.45; }
.note-rule { height: 1px; margin: 1.8rem 0; background: var(--line); }

.projects, .profile { padding: 7.5rem 0; border-top: 1px solid var(--line); }
.projects-list { display: grid; gap: 2rem; }
.catalog-link { display: inline-block; margin-top: 2rem; }
.catalog-hero { padding: 5rem 0 4rem; }
.catalog-projects { padding-bottom: 7.5rem; }
.section-heading { display: grid; grid-template-columns: 15rem 1fr; align-items: end; margin-bottom: 3.5rem; }
.section-number { color: var(--muted); }
h2 { margin: 0; font-size: clamp(2.2rem, 5vw, 4.4rem); line-height: 1; letter-spacing: -.045em; }
.project-card { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(20rem, .65fr); background: var(--panel); border: 1px solid var(--line); }
.project-visual { position: relative; min-height: 31rem; overflow: hidden; background: #08070f; }
.project-visual img { width: 100%; height: 100%; object-fit: cover; object-position: left top; transition: transform .55s ease; }
.project-visual:hover img { transform: scale(1.025); }
.project-version { position: absolute; top: 1rem; left: 1rem; padding: .55rem .75rem; background: rgba(11,16,24,.9); border: 1px solid rgba(255,255,255,.17); font: 700 .73rem/1 ui-monospace, monospace; }
.project-copy { padding: clamp(2rem, 4vw, 3.5rem); align-self: center; }
.project-meta { display: flex; flex-wrap: wrap; gap: .55rem 1rem; color: var(--accent); }
.project-copy h3 { margin: 1.1rem 0 1.25rem; font-size: clamp(2rem, 4vw, 3.25rem); line-height: 1; letter-spacing: -.04em; }
.project-copy > p { color: var(--muted); }
.project-facts { display: grid; grid-template-columns: repeat(3, 1fr); margin: 2rem 0; border-block: 1px solid var(--line); }
.project-facts div { padding: 1.1rem .5rem 1.1rem 0; }
.project-facts dt { color: var(--muted); font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; }
.project-facts dd { margin: .2rem 0 0; font-weight: 700; }
.text-link { color: var(--accent); font-weight: 760; }
.text-link span { display: inline-block; margin-left: .4rem; transition: transform .2s ease; }
.text-link:hover span { transform: translateX(.25rem); }

.profile-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: clamp(3rem, 8vw, 8rem); }
.profile-lead { margin: 0; font-size: clamp(1.35rem, 2.6vw, 2rem); line-height: 1.35; letter-spacing: -.025em; }
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.principles article { min-height: 15rem; padding: 1.5rem; background: var(--panel); }
.principles span { color: var(--accent-2); font: .75rem ui-monospace, monospace; }
.principles h3 { margin: 3.5rem 0 .5rem; font-size: 1.2rem; }
.principles p { margin: 0; color: var(--muted); font-size: .92rem; }

footer { padding: 6rem 0 2rem; border-top: 1px solid var(--line); }
.footer-mail { display: inline-block; margin: .7rem 0 4.5rem; font-size: clamp(1.65rem, 5vw, 4.5rem); letter-spacing: -.05em; border-bottom: 1px solid var(--muted); }
.footer-mail:hover { color: var(--accent); border-color: var(--accent); }
.footer-bottom { display: flex; justify-content: space-between; gap: 2rem; color: var(--muted); font-size: .86rem; }
.footer-bottom p { margin: 0; }
.footer-bottom div { display: flex; gap: 1.4rem; }
.footer-bottom a:hover { color: var(--accent); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition-duration: .01ms !important; } }

@media (max-width: 860px) {
  :root { --header-height: 4.5rem; }
  .desktop-nav { display: none; }
  .mobile-menu { display: block; position: relative; }
  .mobile-menu summary { display: flex; align-items: center; gap: .75rem; padding: .55rem .75rem; border: 1px solid var(--line); cursor: pointer; font-size: .9rem; font-weight: 700; list-style: none; }
  .mobile-menu summary::-webkit-details-marker { display: none; }
  .mobile-menu[open] summary { border-color: var(--accent); color: var(--accent); }
  .mobile-menu nav { position: absolute; top: calc(100% + .75rem); right: 0; display: grid; width: max-content; min-width: 12rem; max-width: calc(100vw - 2rem); gap: .25rem; padding: .6rem; border: 1px solid var(--line); background: var(--panel); box-shadow: 0 1rem 2rem rgba(0,0,0,.35); }
  .mobile-menu nav a { display: block; padding: .65rem .8rem; white-space: nowrap; }
  .mobile-menu nav .nav-contact { border: 0; border-top: 1px solid var(--line); }
  .hero { min-height: auto; grid-template-columns: 1fr; gap: 3rem; padding: 5rem 0; }
  .hero-note { max-width: 28rem; }
  .section-heading { grid-template-columns: 1fr; gap: 1rem; }
  .project-card, .profile-grid { grid-template-columns: 1fr; }
  .project-visual { min-height: 22rem; }
  .principles { grid-template-columns: 1fr; }
  .principles article { min-height: 11rem; }
  .principles h3 { margin-top: 2.2rem; }
}

@media (max-width: 560px) {
  .header-inner, main, footer { width: min(100% - 2rem, var(--max)); }
  .brand > span:last-child { display: none; }
  .nav-contact { padding: .55rem .75rem; }
  h1 { font-size: clamp(3rem, 16vw, 4.8rem); }
  .projects, .profile { padding: 5rem 0; }
  .project-visual { min-height: 15rem; }
  .project-copy { padding: 1.5rem; }
  .project-facts { grid-template-columns: 1fr; }
  .project-facts div + div { border-top: 1px solid var(--line); }
  .footer-bottom { flex-direction: column; }
}

/* Case study */
.case-hero { padding: 5rem 0 3.5rem; }
.back-link { display: inline-block; margin-bottom: 3.5rem; color: var(--muted); font-size: .9rem; }
.back-link:hover { color: var(--accent); }
.case-hero h1 { max-width: none; margin-bottom: 1.5rem; }
.case-deck { max-width: 55rem; margin: 0; color: var(--muted); font-size: clamp(1.2rem, 2.4vw, 1.75rem); line-height: 1.45; }
.case-summary { display: grid; grid-template-columns: repeat(4, 1fr); margin: 4rem 0 0; border-block: 1px solid var(--line); }
.case-summary div { padding: 1.25rem 1.25rem 1.25rem 0; }
.case-summary dt { color: var(--muted); font-size: .73rem; letter-spacing: .08em; text-transform: uppercase; }
.case-summary dd { margin: .3rem 0 0; font-weight: 700; }
.case-summary a { color: var(--accent); }
.case-cover { margin: 0 0 7rem; }
.case-cover img { width: 100%; border: 1px solid var(--line); }
.case-cover figcaption { margin-top: .75rem; color: var(--muted); font-size: .8rem; }
.case-layout { display: grid; grid-template-columns: 15rem minmax(0, 1fr); gap: clamp(3rem, 8vw, 8rem); }
.case-nav { position: sticky; top: calc(var(--header-height) + 1.5rem); align-self: start; padding: 1.5rem; border: 1px solid var(--line); background: var(--panel); }
.case-nav > p { margin: 0 0 1rem; color: var(--muted); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; }
.case-nav ol { display: grid; gap: .65rem; margin: 0; padding: 0; list-style: none; counter-reset: case; }
.case-nav li { counter-increment: case; }
.case-nav a { color: var(--muted); font-size: .88rem; }
.case-nav a::before { content: "0" counter(case) "  "; color: var(--accent); font: .7rem ui-monospace, monospace; }
.case-nav a:hover { color: var(--text); }
.case-content > section { padding: 1rem 0 7rem; }
.case-content h2 { margin: 1rem 0 2rem; font-size: clamp(2.15rem, 5vw, 4rem); line-height: 1.04; }
.case-content section > p:not(.section-number) { max-width: 52rem; color: var(--muted); font-size: 1.08rem; }
.case-content .case-lead { color: var(--text) !important; font-size: clamp(1.25rem, 2.3vw, 1.65rem) !important; line-height: 1.5; }
.challenge-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 3rem; background: var(--line); border: 1px solid var(--line); }
.challenge-grid article { min-height: 15rem; padding: 1.5rem; background: var(--panel); }
.challenge-grid span, .environment-row article > span { color: var(--accent-2); font: .72rem ui-monospace, monospace; }
.challenge-grid h3 { margin: 3rem 0 .6rem; font-size: 1.12rem; }
.challenge-grid p { margin: 0; color: var(--muted); font-size: .9rem; }
.feature-list { display: grid; gap: 0; margin: 2.5rem 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.feature-list li { padding: 1.1rem 0 1.1rem 2rem; border-bottom: 1px solid var(--line); color: var(--muted); position: relative; }
.feature-list li::before { content: "↳"; position: absolute; left: .2rem; color: var(--accent); }
.feature-list strong { color: var(--text); }
.architecture { margin: 3rem 0 4rem; padding: clamp(1.25rem, 4vw, 3rem); background: var(--panel); border: 1px solid var(--line); text-align: center; }
.arch-node { padding: 1rem; background: var(--ink); border: 1px solid var(--line); }
.arch-node span, .arch-node small { display: block; color: var(--muted); font-size: .72rem; }
.arch-node strong { display: block; margin: .25rem 0; }
.arch-entry, .arch-core { max-width: 24rem; margin-inline: auto; }
.arch-core { border-color: var(--accent); }
.arch-arrow { padding: .5rem; color: var(--accent); }
.arch-split {
  --connector: rgba(109, 231, 210, .5);
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  height: 2.5rem;
}
.arch-split::before {
  content: "";
  position: absolute;
  top: 1rem;
  left: calc(16.6667% - .3333rem);
  right: calc(16.6667% - .3333rem);
  border-top: 1px solid var(--connector);
}
.arch-split i {
  width: 1px;
  height: calc(100% - 1rem);
  justify-self: center;
  align-self: end;
  background: var(--connector);
}
.arch-split i:nth-child(2) { height: 100%; }
.arch-columns { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.arch-providers { display: flex; justify-content: center; flex-wrap: wrap; gap: .6rem; margin-top: 1.5rem; }
.arch-providers span { padding: .35rem .65rem; border: 1px solid var(--line); color: var(--muted); font-size: .72rem; }
.subheading { margin: 4rem 0 1.5rem; font-size: 1.25rem; }
.environment-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.environment-row article { padding: 1.35rem; border: 1px solid var(--line); }
.environment-row h4 { margin: 1.5rem 0 .35rem; font-size: 1rem; }
.environment-row p { margin: 0; color: var(--muted); font-size: .88rem; }
.quality-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin: 3rem 0; background: var(--line); border: 1px solid var(--line); }
.quality-stats div { padding: 1.5rem; background: var(--panel); }
.quality-stats strong { display: block; color: var(--accent); font-size: 2.3rem; line-height: 1; letter-spacing: -.04em; }
.quality-stats span { display: block; margin-top: .6rem; color: var(--muted); font-size: .78rem; }
blockquote { margin: 3rem 0; padding: 1.5rem 0 1.5rem 2rem; border-left: 2px solid var(--accent); color: var(--text); font-size: clamp(1.2rem, 2.2vw, 1.65rem); line-height: 1.5; }
.case-actions { display: flex; flex-wrap: wrap; gap: 1rem; }
.next-project { margin: .5rem 0 4rem; font-size: clamp(1.6rem, 4vw, 3.5rem); letter-spacing: -.04em; }

@media (max-width: 900px) {
  .case-summary { grid-template-columns: repeat(2, 1fr); }
  .case-layout { grid-template-columns: 1fr; }
  .case-nav { position: static; }
  .case-nav ol { grid-template-columns: repeat(5, auto); overflow-x: auto; }
  .challenge-grid, .environment-row { grid-template-columns: 1fr; }
  .challenge-grid article { min-height: 11rem; }
}

@media (max-width: 620px) {
  .case-summary, .quality-stats, .arch-columns { grid-template-columns: 1fr; }
  .case-summary div + div { border-top: 1px solid var(--line); }
  .case-cover { margin-bottom: 5rem; }
  .arch-split { display: none; }
  .arch-columns { margin-top: 1rem; }
  .case-nav ol { grid-template-columns: 1fr 1fr; }
}

@media print {
  :root { color-scheme: light; --ink: #fff; --panel: #f4f6f8; --panel-soft: #eef1f4; --line: #c8ced6; --text: #101820; --muted: #44515e; --accent: #007968; --accent-2: #8d5b00; }
  .site-header nav, .mobile-menu, .case-nav, .case-actions, footer { display: none; }
  .site-header { position: static; }
  .case-layout { display: block; }
  .case-content > section { break-inside: avoid; padding-bottom: 3rem; }
  .case-cover { margin-bottom: 3rem; }
}