/* =========================================
   GLOBAL STYLES
   Base typography, body, links, and
   shared utility classes.
   ========================================= */

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  transition: background-color var(--transition-slow), color var(--transition-slow);
}

/* ── HEADINGS ────────────────────────────── */

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-navy-dark);
  line-height: 1.2;
}

html.dark h1,
html.dark h2,
html.dark h3,
html.dark h4 {
  color: var(--color-text);
}

/* ── LINKS ───────────────────────────────── */

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ── SHARED SECTION STYLES ───────────────── */

.section {
  padding: 72px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 10px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  color: var(--color-navy-dark);
  line-height: 1.2;
  margin-bottom: 14px;
}

html.dark .section-title {
  color: var(--color-text);
}

.section-body {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 640px;
  margin-bottom: 44px;
  line-height: 1.7;
}

.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 0;
}

/* ── ACCESSIBILITY ───────────────────────── */

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  z-index: 9999;
  background: var(--color-accent);
  color: var(--color-text-inverse);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-sm);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── FOCUS STYLES ────────────────────────── */

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

button:focus-visible,
a:focus-visible {
  border-radius: 4px;
}