/* Open Source Industry — design tokens ported from the Claude Design
   handoff (_ds/industry-.../styles.css). Plain CSS, no build step. */
@import url('https://fonts.googleapis.com/css2?family=Barlow:wght@400;500;700&family=Barlow+Condensed:wght@400;600&display=swap');

:root {
  --color-bg: #f2f2f3;
  --color-surface: #e9e9ea;
  --color-text: #1d1f20;
  --color-accent: #5980a6;
  --color-accent-2: #728fab;
  --color-divider: color-mix(in srgb, #1d1f20 16%, transparent);

  --color-accent-100: #eef6ff;
  --color-accent-700: #416180;
  --color-accent-800: #2c455d;
  --color-accent-900: #1d2d3d;

  --font-heading: "Barlow Condensed", system-ui, sans-serif;
  --font-heading-weight: 600;
  --font-body: "Barlow", system-ui, sans-serif;

  --space-1: 3.4px;
  --space-2: 6.8px;
  --space-3: 10.2px;
  --space-4: 13.6px;
  --space-6: 20.4px;
  --space-8: 27.2px;

  --radius-md: 4px;
}

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
  font-weight: 400;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin: 0 0 var(--space-2);
}
h1 { font-size: 42px; }
h2 { font-size: 32px; }
h3 { font-size: 25px; }

p { margin: 0 0 var(--space-3); }
a { color: var(--color-accent); text-underline-offset: 3px; }
img { display: block; max-width: 100%; }

.text-muted { color: color-mix(in srgb, var(--color-text) 55%, transparent); }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
::selection { background: color-mix(in srgb, var(--color-accent) 30%, transparent); }

.hr {
  height: 1px; border: 0; margin: var(--space-4) 0;
  background: var(--color-divider);
}

/* — kicker label (small caps technical-drawing style) — */
.k {
  display: block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 13px;
  line-height: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--color-accent-700);
}

/* — buttons — */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  cursor: pointer; text-decoration: none;
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 14px; line-height: 1.2; color: var(--color-text);
  background: transparent; border: 1px solid var(--color-divider);
  padding: var(--space-2) calc(var(--space-3) * 1.2);
  border-radius: var(--radius-md);
}
.btn-primary { background: var(--color-accent); color: var(--color-bg); border-color: var(--color-accent); }
.btn-primary:hover { background: var(--color-accent-700); }
.btn-secondary:hover { background: color-mix(in srgb, var(--color-text) 7%, transparent); }

/* — tags — */
.tag {
  display: inline-flex; align-items: center; font-size: 11px;
  letter-spacing: 0.02em; padding: 3px 10px; border-radius: 3px;
}
.tag-accent { background: var(--color-accent-100); color: var(--color-accent-800); }

/* — blueprint: technical-drawing frame with corner registration marks — */
.blueprint {
  position: relative;
  border: 1px solid var(--color-divider);
}
.blueprint > .corner {
  position: absolute; width: 11px; height: 11px;
  color: color-mix(in srgb, var(--color-text) 55%, transparent);
}
.blueprint > .corner::before, .blueprint > .corner::after {
  content: ""; position: absolute; background: currentColor;
}
.blueprint > .corner::before { left: 5px; top: 0; width: 1px; height: 100%; }
.blueprint > .corner::after  { top: 5px; left: 0; width: 100%; height: 1px; }
.blueprint > .corner.tl { top: -6px; left: -6px; }
.blueprint > .corner.tr { top: -6px; right: -6px; }
.blueprint > .corner.bl { bottom: -6px; left: -6px; }
.blueprint > .corner.br { bottom: -6px; right: -6px; }

/* — layout shell shared by all pages — */
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

.site-nav {
  display: flex; align-items: baseline; gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-divider);
}
.site-nav .brand {
  font-family: var(--font-heading); font-weight: 600; font-size: 19px;
  letter-spacing: .02em; text-transform: uppercase; color: inherit; text-decoration: none;
}
.site-nav a { color: inherit; text-decoration: none; font-size: 14px; }
.site-nav a:hover { color: var(--color-accent-700); }
.site-nav .nav-links { display: flex; align-items: baseline; gap: 24px; margin-left: auto; }

.hero { padding: 88px 0 64px; max-width: 42ch; }
.hero h1 {
  font-size: 60px; line-height: 62px; letter-spacing: .01em;
  text-transform: uppercase; margin: 0 0 0 -.03em;
}
.hero p { font-size: 17px; line-height: 26px; margin: 24px 0 0; max-width: 54ch;
  color: color-mix(in srgb, var(--color-text) 80%, transparent); }

.projects { padding: 0 0 80px; }
.projects-head {
  display: flex; align-items: baseline; justify-content: space-between;
  margin: 0 0 20px;
}
.projects-list { display: flex; flex-direction: column; gap: 32px; }
.project-plate {
  display: grid; grid-template-columns: minmax(0,4fr) minmax(0,6fr) auto;
  align-items: center; gap: 28px; padding: 30px; text-decoration: none; color: inherit;
}
.project-plate:hover { background: color-mix(in srgb, var(--color-accent) 6%, transparent); }
.project-plate h2 { font-size: 40px; line-height: 40px; letter-spacing: .02em; text-transform: uppercase; margin: 16px 0 0; }
.project-plate p { font-size: 15px; line-height: 24px; margin: 0; color: color-mix(in srgb, var(--color-text) 80%, transparent); }
.project-plate--static:hover { background: none; }
.project-plate--static .btn { cursor: default; color: color-mix(in srgb, var(--color-text) 55%, transparent); }

.site-footer {
  border-top: 1px solid var(--color-divider);
  padding: 26px 0 40px;
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 18px 24px;
  font-size: 13px; color: color-mix(in srgb, var(--color-text) 70%, transparent);
}
.site-footer a { color: var(--color-accent-700); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.site-footer .copyright { margin-left: auto; }
.site-footer .social-links { display: flex; gap: 16px; flex-wrap: wrap; width: 100%; order: 10;
  padding-top: 14px; border-top: 1px solid var(--color-divider); }

/* — legal / static content pages — */
.page-content { padding: 56px 0 80px; max-width: 68ch; }
.page-content h1 { font-size: 38px; margin-bottom: 32px; }
.page-content h2 { font-size: 24px; margin: 40px 0 12px; }
.page-content ul { margin: 0 0 var(--space-3); padding-left: 20px; }
.page-content li { margin-bottom: 6px; }
.legal-block { padding: 24px 0; border-bottom: 1px solid color-mix(in srgb, var(--color-text) 8%, transparent); }
.legal-block:last-child { border-bottom: none; }
.legal-block dt {
  font-family: var(--font-heading); font-weight: 600; font-size: 12px;
  letter-spacing: .06em; text-transform: uppercase; color: var(--color-accent-700);
  margin-bottom: 4px;
}
.legal-block dd { margin: 0 0 14px; }
.legal-block dd:last-child { margin-bottom: 0; }

@media (max-width: 720px) {
  .site-nav { flex-wrap: wrap; row-gap: 10px; }
  .site-nav .nav-links { margin-left: 0; gap: 18px; }
  .hero { padding: 56px 0 40px; max-width: none; }
  .hero h1 { font-size: 38px; line-height: 40px; }
  .hero p { font-size: 16px; }
  .project-plate { grid-template-columns: 1fr; gap: 12px; padding: 22px; text-align: left; }
  .project-plate .btn { justify-self: start; }
  .site-footer .copyright { margin-left: 0; }
}