/* ==========================================================================
   global.css — Base document styles
   ========================================================================== */

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;
  }
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(77, 141, 255, 0.08), transparent 55%),
    radial-gradient(ellipse 60% 40% at 90% 0%, rgba(107, 92, 255, 0.06), transparent 50%);
  background-attachment: fixed;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  z-index: calc(var(--z-overlay) + 1);
  padding: var(--space-2) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  transform: translateY(-200%);
  transition: transform var(--duration-fast) var(--ease-out);
}

.skip-link:focus-visible {
  transform: translateY(0);
}

main {
  display: block;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page__main {
  flex: 1;
}

/* Typography helpers */
.eyebrow {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.muted {
  color: var(--color-text-muted);
}

/* Placeholder / unfinished markers for foundation phases */
.todo-note {
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  background: rgba(255, 255, 255, 0.02);
}

.todo-note code {
  font-size: 0.9em;
  color: var(--color-blue);
}

/* Utility */
.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;
}

.is-hidden {
  display: none !important;
}