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

html {
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-body);
  line-height: 1.5;
  font-weight: 400;
}

h1, h2, h3, p, ul, ol, figure {
  margin: 0;
}

ul, ol {
  padding: 0;
  list-style: none;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

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

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

/* Typography roles */
.t-display { font-size: var(--text-display); font-weight: 700; line-height: 1.2; }
.t-h1 { font-size: var(--text-h1); font-weight: 600; line-height: 1.3; }
.t-h2 { font-size: var(--text-h2); font-weight: 600; line-height: 1.3; }
.t-h3 { font-size: var(--text-h3); font-weight: 600; line-height: 1.4; }
.t-body { font-size: var(--text-body); font-weight: 400; line-height: 1.5; }
.t-label { font-size: var(--text-label); font-weight: 500; line-height: 1.4; }
.t-helper { font-size: var(--text-helper); font-weight: 400; line-height: 1.4; }
.t-caption { font-size: var(--text-caption); font-weight: 400; line-height: 1.4; }

/* Utilities */
.num { font-variant-numeric: tabular-nums; }
.text-muted { color: var(--color-text-muted); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-error { color: var(--color-error); }
.stack { display: flex; flex-direction: column; }
.stack--2 { gap: var(--space-2); }
.stack--4 { gap: var(--space-4); }
.stack--6 { gap: var(--space-6); }
.row { display: flex; align-items: center; }
.row--2 { gap: var(--space-2); }
.row--4 { gap: var(--space-4); }
.row--between { justify-content: space-between; }
.grow { flex: 1; min-width: 0; }

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

.icon {
  flex: none;
  display: inline-block;
  vertical-align: middle;
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}