/* Microinteracciones para las tarjetas de cursos */
.course {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  opacity: 0;
  animation: courseIn .55s cubic-bezier(.2,.8,.2,1) forwards;
  animation-delay: var(--delay, 0ms);
  transition: transform .24s ease, border-color .24s ease,
              box-shadow .24s ease, background .24s ease;
}
.course:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--primary) 45%, #eee9f5);
  box-shadow: 0 14px 30px rgba(49,22,91,.12);
}
.course:active { transform: scale(.985); }
.course.selected {
  box-shadow: 0 12px 32px color-mix(in srgb, var(--primary) 18%, transparent);
}
.course-glow {
  position: absolute;
  z-index: -1;
  width: 110px;
  height: 110px;
  right: -70px;
  top: -70px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 24%, transparent);
  transition: transform .35s ease;
}
.course:hover .course-glow,
.course.selected .course-glow { transform: scale(2.2); }
.course-icon { transition: transform .3s ease, background .3s ease; }
.course:hover .course-icon,
.course.selected .course-icon {
  transform: rotate(-5deg) scale(1.08);
  background: #fff;
}
.course span:nth-child(3) { display: grid; gap: 3px; }
.course i { transform: scale(.5); transition: opacity .25s ease, transform .25s ease; }
.course.selected i { transform: scale(1); }
@keyframes courseIn {
  from { opacity: 0; transform: translateY(15px) scale(.98); }
  to { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .course { animation: none; opacity: 1; transition: none; }
}
@media (max-width: 520px) {
  .segmented button { font-size: .78rem; padding: 12px 7px; }
  .screen[data-screen="courses"] header h2 { font-size: 1.45rem; line-height: 1.08; }
}