/**
 * Base Styles
 * Layout tokens, typography defaults, accessibility utilities
 */

/* --- Layout Tokens --- */
:root {
  --layout-max: 1650px;
  --layout-wide: 1400px;
  --layout-padding: 1.5rem;
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
}

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--layout-max);
  margin-inline: auto;
  padding-inline: var(--layout-padding);
}

.container--wide {
  max-width: var(--layout-wide);
}

/* --- Skip Link --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--layout-padding);
  z-index: 999;
  padding: 0.5em 1em;
  background: #000;
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  border-radius: 0 0 4px 4px;
}

.skip-link:focus {
  top: 0;
}

/* --- Screen Reader Only --- */
.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;
}

.sr-only--focusable:focus,
.sr-only--focusable:active {
  position: static;
  width: auto;
  height: auto;
  padding: inherit;
  margin: inherit;
  overflow: visible;
  clip: auto;
  white-space: inherit;
}

/* --- Flow Spacing Utility --- */
.flow > * + * {
  margin-block-start: var(--flow-space, 1em);
}

/* --- Smooth Scroll (respects preference) --- */
@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}