*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg, video { max-width: 100%; height: auto; display: block; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }

a {
  color: var(--color-brand);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover { color: var(--color-brand-hover); text-decoration: underline; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: var(--lh-tight);
  letter-spacing: -0.01em;
  color: var(--color-text);
}
h1 { font-size: var(--fs-4xl); font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: var(--fs-3xl); font-weight: 700; }
h3 { font-size: var(--fs-xl); font-weight: 600; }
h4 { font-size: var(--fs-lg); font-weight: 600; }

p { line-height: var(--lh-relaxed); color: var(--color-text-muted); }
p + p { margin-top: var(--space-3); }

ul, ol { padding-left: 1.25em; line-height: var(--lh-relaxed); color: var(--color-text-muted); }
li + li { margin-top: var(--space-1); }

strong { font-weight: 600; color: var(--color-text); }
hr { border: 0; border-top: 1px solid var(--color-border); margin: var(--space-6) 0; }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-5);
}
.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

section { padding-block: var(--space-8); }
@media (min-width: 768px) { section { padding-block: var(--space-9); } }

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

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}