/* ==========================================================================
   Base — resets, typography, global element defaults
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  font-family: var(--font-system);
  font-size: var(--fs-body);
  line-height: var(--leading-body);
  letter-spacing: var(--tracking-body);
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color var(--duration-slow) var(--ease-standard),
    color var(--duration-slow) var(--ease-standard);
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-weight: 700;
  margin: 0;
  color: var(--color-text-primary);
  font-family: var(--font-display);
}

h1 {
  font-size: var(--fs-h1);
  line-height: var(--leading-h1);
  letter-spacing: var(--tracking-h1);
}

h2 {
  font-size: var(--fs-h2);
  line-height: var(--leading-h2);
  letter-spacing: var(--tracking-h2);
}

h3 {
  font-size: var(--fs-h3);
  line-height: var(--leading-h2);
}

p {
  margin: 0;
  color: var(--color-text-secondary);
}

a {
  color: var(--color-brand-500);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-standard);
}

a:hover {
  color: var(--color-brand-600);
}

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

::selection {
  background: var(--color-brand-100);
  color: var(--color-brand-700);
}

/* ---- Accessible focus ring (never suppressed) ---- */
:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ---- Utility text classes ---- */
.text-secondary { color: var(--color-text-secondary); }
.text-tertiary { color: var(--color-text-tertiary); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-caption);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-brand-500);
}

.text-brand { color: var(--color-brand-500); }