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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-navy);
  line-height: 1.2;
  margin: 0 0 var(--space-3);
}

h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.6rem); }

p { margin: 0 0 var(--space-3); color: var(--color-text-muted); }

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-dark); }

img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.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;
}

.grid { display: grid; gap: var(--space-4); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

:focus-visible {
  outline: 3px solid var(--color-secondary);
  outline-offset: 2px;
}