/* ========================================
   Skip Link
   ======================================== */

.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: 0 0 4px 4px;
  z-index: 1000;
  text-decoration: none;
  transition: top var(--transition-fast);
}

.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-width: 0;
}

/* ========================================
   High Contrast Mode
   ======================================== */

.high-contrast {
  --color-bg: var(--hc-bg);
  --color-bg-alt: #F5F5F5;
  --color-surface: #FFFFFF;
  --color-text-primary: var(--hc-text);
  --color-text-secondary: #333333;
  --color-accent: var(--hc-accent);
  --color-accent-hover: #8B3A00;
  --color-border: var(--hc-border);
  --color-border-strong: var(--hc-border);
}

.high-contrast body::before {
  opacity: 0;
}

.high-contrast img {
  filter: contrast(1.1);
}

.high-contrast .hero-overlay {
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.9) 0%,
    rgba(0, 0, 0, 0.5) 40%,
    rgba(0, 0, 0, 0.2) 100%
  );
}

/* ========================================
   Scroll Reveal Animations
   ======================================== */

[data-reveal] {
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays */
[data-reveal-delay="100"] { transition-delay: 100ms; }
[data-reveal-delay="200"] { transition-delay: 200ms; }
[data-reveal-delay="300"] { transition-delay: 300ms; }

/* ========================================
   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;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}