/* ── Keyframes ───────────────────────────────────────────── */
@keyframes pulse-dot {
  0%   { box-shadow: 0 0 0 0 rgba(0, 180, 154, 0.5); }
  70%  { box-shadow: 0 0 0 6px rgba(0, 180, 154, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 180, 154, 0); }
}

@keyframes cd-tick {
  0%, 100% { transform: translateY(0); opacity: 1; }
  45%       { transform: translateY(-4px); opacity: 0; }
  55%       { transform: translateY(4px); opacity: 0; }
}

/* ── Scroll reveal ───────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

.reveal--left  { transform: translateX(-20px); }
.reveal--left.is-visible  { transform: translateX(0); }
.reveal--right { transform: translateX(20px); }
.reveal--right.is-visible { transform: translateX(0); }

/* ── Curriculum accordion ────────────────────────────────── */
.week__body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 460ms var(--ease);
}
.week__body.is-open { grid-template-rows: 1fr; }
.week__inner { overflow: hidden; }

.week__chevron {
  transition: transform 350ms var(--ease);
  display: flex; align-items: center;
}
.week__trigger[aria-expanded="true"] .week__chevron { transform: rotate(45deg); }

/* ── Countdown tick ──────────────────────────────────────── */
.cd-tick { animation: cd-tick 1s var(--ease) 1; }

/* ── Reduced motion ──────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .week__body { transition: none; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}