:root {
  --bg: #ffffff;
  --bg-soft: #f7f8fa;
  --bg-tint: #f0f3f8;
  --ink: #0b1220;
  --ink-2: #1f2937;
  --ink-3: #4b5563;
  --ink-4: #6b7280;
  --ink-5: #9ca3af;
  --line: #e5e7eb;
  --line-2: #eef0f3;

  --accent: #4f46e5;
  --accent-2: #6366f1;
  --accent-soft: #eef2ff;
  --accent-ink: #312e81;

  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(15,23,42,.04), 0 1px 1px rgba(15,23,42,.03);
  --shadow-md: 0 8px 24px -8px rgba(15,23,42,.12), 0 2px 6px rgba(15,23,42,.04);

  --font-sans: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --font-serif: "Instrument Serif", "Iowan Old Style", Georgia, serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.65;
}
::selection { background: var(--accent); color: white; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
button { font-family: inherit; cursor: pointer; }

.wrap { max-width: 1200px; margin: 0 auto; padding: 0 32px; }
.wrap-narrow { max-width: 760px; margin: 0 auto; padding: 0 32px; }

/* ---------- NAV ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.82);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line-2);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 32px; max-width: 1200px; margin: 0 auto;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; letter-spacing: -0.01em; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center; color: white;
  box-shadow: 0 4px 10px -4px var(--accent);
}
.brand-name { font-size: 16px; }
.brand-name b { font-weight: 700; }
.brand-name span { color: var(--ink-4); font-weight: 500; }
.nav-links { display: flex; gap: 28px; font-size: 14px; color: var(--ink-3); list-style: none; padding: 0; margin: 0; }
.nav-links a { color: var(--ink-3); }
.nav-links a:hover { color: var(--ink); text-decoration: none; }

/* ---------- PAGE HEADER ---------- */
.page-header {
  padding: 72px 0 32px;
  border-bottom: 1px solid var(--line-2);
  background: var(--bg-soft);
}
.page-header .eyebrow {
  display: inline-block; font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--accent-ink); background: var(--accent-soft);
  padding: 4px 10px; border-radius: 999px;
}
.page-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(36px, 4.5vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 18px 0 12px;
  font-weight: 400;
}
.page-header .updated {
  font-size: 14px; color: var(--ink-4);
}

/* ---------- ARTICLE ---------- */
.article {
  padding: 56px 0 96px;
}
.article p { color: var(--ink-2); margin: 0 0 18px; font-size: 16px; }
.article h2 {
  font-size: 22px; font-weight: 600;
  letter-spacing: -0.01em;
  margin: 40px 0 14px;
  color: var(--ink);
}
.article h3 {
  font-size: 17px; font-weight: 600;
  margin: 28px 0 10px;
  color: var(--ink);
}
.article ul, .article ol {
  color: var(--ink-2); padding-left: 22px; margin: 0 0 18px;
}
.article li { margin-bottom: 8px; }
.article strong { color: var(--ink); font-weight: 600; }
.article hr { border: 0; border-top: 1px solid var(--line); margin: 40px 0; }

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  background: var(--bg);
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
}
.card .label {
  font-family: var(--font-mono); font-size: 12px;
  text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--ink-4); margin-bottom: 6px;
}
.card .value {
  font-size: 18px; font-weight: 500; color: var(--ink);
}
.card .value a { color: var(--ink); }

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin: 32px 0;
}
.contact-grid .card { margin: 0; }

/* ---------- FOOTER ---------- */
footer.simple {
  border-top: 1px solid var(--line-2);
  padding: 32px 0;
  background: var(--bg-soft);
  font-size: 13px;
  color: var(--ink-4);
}
footer.simple .footer-row {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 16px;
}
footer.simple a { color: var(--ink-3); }
footer.simple a:hover { color: var(--ink); text-decoration: none; }
footer.simple .links { display: flex; gap: 18px; }

@media (max-width: 640px) {
  .nav-links { display: none; }
  .page-header { padding: 48px 0 24px; }
  .article { padding: 40px 0 64px; }
}