/* base.css — shared design-system foundation (reset, base typography, nav, footer).
   Generated/maintained as the single source for rules that were previously
   duplicated inline across every page. Loaded after responsive.css to preserve
   the original cascade (these rules lived in each page's inline <style>). */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ── Nav ── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ── Footer ── */
footer {
  padding: 48px 24px;
}

/* The footer's <nav> must not inherit the top nav's bottom border. */
.footer-nav {
  border-bottom: none;
}

.footer-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 120px;
}

.footer-col-heading {
  font-size: 11px;
  font-weight: 600;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}

.footer-col a {
  font-size: 13px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.15s;
}

.footer-col a:hover {
  color: var(--text);
}

.footer-copy {
  font-size: 12px;
  color: var(--text-secondary);
  opacity: 0.7;
}