/* ══════════════════════════════════════════════════════════════════════════
   GWR Labs — "Industry" blueprint design system.
   Ported from the Claude Design project (styles.css) into the static site,
   plus a few site-specific additions (image placeholders, header responsive,
   language button hover). Retune tokens in :root.
   ══════════════════════════════════════════════════════════════════════ */
@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-neutral-100: #f5f5f8;
  --color-neutral-200: #e7e7ea;
  --color-neutral-300: #d4d4d7;
  --color-neutral-400: #b7b7ba;
  --color-neutral-500: #98989b;
  --color-neutral-600: #7a7a7d;
  --color-neutral-700: #5d5d60;
  --color-neutral-800: #424244;
  --color-neutral-900: #2b2b2d;

  --color-accent-100: #eef6ff;
  --color-accent-200: #d6ebff;
  --color-accent-300: #b5d9fd;
  --color-accent-400: #94bce3;
  --color-accent-500: #749dc4;
  --color-accent-600: #597ea3;
  --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-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 7px;

  --shadow-sm: 0 1px 2px color-mix(in srgb, #2b2b2d 14%, transparent);
  --shadow-md: 0 3px 10px color-mix(in srgb, #2b2b2d 16%, transparent);
  --shadow-lg: 0 12px 32px color-mix(in srgb, #2b2b2d 22%, transparent);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
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;
  -webkit-font-smoothing: antialiased;
}
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);
}
h6 { letter-spacing: 0.08em; text-transform: uppercase; }
p { margin: 0 0 var(--space-3); }
a { color: var(--color-accent-700); text-decoration: none; text-underline-offset: 3px; }
a:hover { color: var(--color-accent-900); }
img { display: block; max-width: 100%; }
figure { margin: 0; }
: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); }

/* — blueprint frame: wireframe object with registration marks — */
.blueprint {
  position: relative;
  border: 1px solid var(--color-divider);
  border-radius: 0;
}
.blueprint.duotone { overflow: visible; }
.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; }

/* — duotone screenshot treatment — */
.duotone { position: relative; overflow: hidden; }
.duotone::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: var(--color-accent); mix-blend-mode: color;
}

/* — 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: 0;
}
.btn-primary { background: var(--color-accent); color: var(--color-bg); border-color: var(--color-accent); }
.btn-primary:hover { background: var(--color-accent-600); color: var(--color-bg); }
.btn-primary:active { background: var(--color-accent-700); }
.btn-secondary { border-color: var(--color-divider); }
.btn-secondary:hover { background: color-mix(in srgb, var(--color-text) 7%, transparent); }
.btn-secondary:active { background: color-mix(in srgb, var(--color-text) 14%, transparent); }

/* — cards — blueprint style — */
.card {
  display: flex; flex-direction: column;
  border-radius: 0; background: transparent;
  border: 1px solid var(--color-divider);
}

/* ── site-specific additions ─────────────────────────────────────────── */

/* language toggle button */
.lang-btn {
  font-family: var(--font-body); font-size: 12px; letter-spacing: 0.08em;
  padding: 7px 11px; background: transparent; border: 1px solid var(--color-divider);
  color: var(--color-neutral-800); cursor: pointer; border-radius: 0;
}
.lang-btn:hover { background: var(--color-accent-100); color: var(--color-accent-900); }

/* editable-image placeholder (screens not shipped yet) */
.img-slot {
  position: absolute; inset: 0; display: flex; align-items: center;
  justify-content: center; text-align: center; padding: 20px;
  font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--color-neutral-600); line-height: 1.5;
}

/* responsive: collapse the center nav on small screens (footer keeps the links) */
@media (max-width: 760px) {
  .hdr-nav { display: none !important; }
}

/* ══ dark theme ════════════════════════════════════════════════════════
   Applied when <html data-theme="dark"> is set (toggle + system default).
   Only the tokens change; every component reads them, so the whole site
   flips. Accent ramp is lightened so text/links stay legible on dark. */
:root[data-theme="dark"] {
  --color-bg: #15171a;
  --color-surface: #1e2126;
  --color-text: #e9e9ec;
  --color-divider: color-mix(in srgb, #ffffff 15%, transparent);

  --color-neutral-100: #f5f5f8;
  --color-neutral-600: #9a9a9e;
  --color-neutral-700: #adadb1;
  --color-neutral-800: #d0d0d4;
  --color-neutral-900: #ececef;

  --color-accent: #6f97bf;
  --color-accent-600: #86accd;
  --color-accent-700: #9cbcdb;
  --color-accent-800: #bcd3ea;
  --color-accent-900: #16283a;
  --color-accent-100: #223140;
  --color-accent-200: #c6d9ed;
  --color-accent-400: #6b8fb3;

  color-scheme: dark;
}
:root[data-theme="dark"] a:hover { color: #d3e2f2; }
:root[data-theme="dark"] .lang-btn:hover { background: var(--color-accent-100); color: var(--color-text); }