/* One Carolina Transit — custom CSS
   Everything Tailwind utility classes can't cleanly express lives here:
   scroll-reveal animation, focus-visible rings, and reduced-motion overrides. */

:root {
  --color-primary-900: #0F2E5C;
  --color-primary-700: #1E4B8F;
  --color-accent-600: #E8792E;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

/* Scroll-reveal: elements start hidden, JS adds .is-visible via IntersectionObserver.
   Each page has a <noscript> override in <head> so content shows without JS. */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 400ms ease-out, transform 400ms ease-out;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Visible focus ring on every interactive element — never suppressed */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-primary-900);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Skip link — visually hidden until focused */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-primary-900);
  color: #fff;
  padding: 12px 20px;
  z-index: 100;
  border-radius: 0 0 8px 0;
}

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

/* FAQ accordion chevron rotation */
.faq-trigger[aria-expanded="true"] .faq-chevron {
  transform: rotate(180deg);
}

.faq-chevron {
  transition: transform 200ms ease;
}

@media (prefers-reduced-motion: reduce) {
  .faq-chevron {
    transition: none;
  }
}

/* Mobile nav panel */
#mobile-menu {
  transition: max-height 250ms ease, opacity 200ms ease;
}