/* ============================================================
   AURORA — Accessibility
   Focus rings, reduced motion, contrast, screen reader
   ============================================================ */

/* ---- FOCUS VISIBLE ---- */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

:focus:not(:focus-visible) { outline: none; }

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

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

.nav__link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

.input:focus-visible {
  outline: none;
  border: 2px solid var(--color-primary);
}

/* ---- REDUCED MOTION ---- */
@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;
  }

  .reveal, .section-enter {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
  }

  .text-reveal__word {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
    animation: none !important;
  }

  .text-gradient { animation: none !important; }
  .skeleton { animation: none !important; }
  .hero__scroll-icon { animation: none !important; }
  .hero__badge-dot { animation: none !important; }
}

/* ---- HIGH CONTRAST ---- */
@media (prefers-contrast: high) {
  :root {
    --border-hairline: rgba(10, 14, 26, 0.20);
    --border-hairline-strong: rgba(10, 14, 26, 0.35);
  }

  [data-theme="dark"] {
    --border-hairline: rgba(255, 255, 255, 0.15);
    --border-hairline-strong: rgba(255, 255, 255, 0.25);
    --text-secondary: #d1d1d8;
    --text-tertiary: #a8a8b3;
  }

  .card { border-width: 2px; }
  .btn--secondary { border-width: 2px; }
}

/* ---- SCREEN READER ---- */
.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 {
  position: static;
  width: auto;
  height: auto;
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
}

/* ---- SKIP LINK ---- */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-on-primary);
  padding: var(--space-sm) var(--space-md);
  border-radius: 0 0 var(--radius-md) 0;
  font-size: var(--text-body-sm);
  font-weight: var(--weight-medium);
  z-index: var(--z-tooltip);
  transition: top var(--duration-fast) var(--ease-standard);
}

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

/* ---- TOUCH TARGET ---- */
@media (max-width: 767px) {
  .btn { min-height: 44px; }
  .nav__link {
    padding: var(--space-sm) var(--space-xs);
    min-height: 44px;
    display: flex;
    align-items: center;
  }
  .theme-toggle { min-width: 44px; min-height: 44px; }
}