/**
 * MentorNova collapsible section cards (progressive enhancement).
 * Bodies stay visible until JS wraps cards and toggles .is-open.
 */

.mn-collapsible-card {
  position: relative;
  border: 1px solid transparent;
  border-radius: inherit;
  transition:
    border-color 0.22s ease,
    background-color 0.22s ease,
    box-shadow 0.22s ease;
}

.mn-collapsible-card.is-open {
  border-color: rgba(177, 15, 31, 0.14);
  background: linear-gradient(
    165deg,
    rgba(255, 255, 255, 0.99) 0%,
    rgba(247, 248, 251, 0.58) 100%
  );
  box-shadow: 0 0 0 1px rgba(177, 15, 31, 0.07);
}

.mn-collapsible-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem 1rem;
  width: 100%;
  min-height: 2.75rem;
  margin: 0;
  padding: 0.35rem 0.15rem 0.5rem 0;
  border: 0;
  border-radius: calc(var(--radius-md, 18px) - 6px);
  background: var(--f360-official-surface-raised, transparent);
  font: inherit;
  color: inherit;
  text-align: left;
  cursor: pointer;
  transition:
    background-color 0.18s ease,
    box-shadow 0.18s ease,
    border-color 0.18s ease;
}

.mn-collapsible-header:hover {
  background: rgba(177, 15, 31, 0.04);
  box-shadow: inset 0 0 0 1px rgba(17, 17, 17, 0.06);
}

.mn-collapsible-card.is-open .mn-collapsible-header:hover {
  background: rgba(177, 15, 31, 0.055);
}

.mn-collapsible-header:focus-visible {
  outline: 2px solid var(--f360-official-focus, #1d4ed8);
  outline-offset: 2px;
  box-shadow: none;
}

.mn-collapsible-header-main {
  flex: 1;
  min-width: 0;
}

/* Title / subtitle hierarchy inside the header */
.mn-collapsible-header-main .section-heading h2,
.mn-collapsible-header-main .section-heading h3,
.mn-collapsible-header-main .section-heading h4 {
  font-size: 1.125rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.mn-collapsible-card.is-open .mn-collapsible-header-main .section-heading h2,
.mn-collapsible-card.is-open .mn-collapsible-header-main .section-heading h3,
.mn-collapsible-card.is-open .mn-collapsible-header-main .section-heading h4 {
  color: var(--color-ink, #111);
}

.mn-collapsible-header-main .section-heading p {
  margin-top: 0.45rem;
  font-size: 0.92rem;
  line-height: 1.45;
  color: var(--color-ink-soft, #5d6470);
  max-width: 62ch;
}

.mn-collapsible-header-main .split-note {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.65rem 1rem;
}

.mn-collapsible-header-main .split-note .section-heading {
  flex: 1 1 12rem;
  min-width: 0;
}

.mn-collapsible-header-main .school-profile-card__header {
  width: 100%;
}

.mn-collapsible-header-main .school-profile-card__header h3 {
  margin-top: 0.2rem;
}

.mn-collapsible-header-main .school-profile-card__header p {
  margin-top: 0.4rem;
  font-size: 0.92rem;
  line-height: 1.45;
  color: var(--color-ink-soft, #5d6470);
  max-width: 62ch;
}

/* Chevron: closed = points down, open = points up */
.mn-collapsible-chevron {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  margin-top: 0.05rem;
  border-radius: 999px;
  border: 1px solid var(--color-border-strong, rgba(17, 17, 17, 0.16));
  background: rgba(255, 255, 255, 0.65);
  position: relative;
  box-shadow: 0 1px 2px rgba(17, 17, 17, 0.05);
  transition:
    transform 0.22s cubic-bezier(0.33, 1, 0.68, 1),
    border-color 0.18s ease,
    background-color 0.18s ease,
    box-shadow 0.18s ease;
}

.mn-collapsible-chevron::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 0.5rem;
  height: 0.5rem;
  margin: -0.32rem 0 0 -0.32rem;
  border-right: 2px solid var(--color-ink-soft, #5d6470);
  border-bottom: 2px solid var(--color-ink-soft, #5d6470);
  transform: rotate(45deg);
  transform-origin: 50% 50%;
  transition: transform 0.22s cubic-bezier(0.33, 1, 0.68, 1), border-color 0.18s ease;
}

.mn-collapsible-card.is-open .mn-collapsible-chevron::before {
  transform: rotate(225deg);
  margin-top: -0.22rem;
  border-right-color: var(--color-primary, #b10f1f);
  border-bottom-color: var(--color-primary, #b10f1f);
}

.mn-collapsible-card.is-open .mn-collapsible-chevron {
  border-color: rgba(177, 15, 31, 0.28);
  background: rgba(177, 15, 31, 0.06);
  box-shadow: 0 1px 3px rgba(177, 15, 31, 0.08);
}

.mn-collapsible-header:hover .mn-collapsible-chevron {
  border-color: rgba(177, 15, 31, 0.22);
  background: rgba(255, 255, 255, 0.85);
}

/* Error accent (validation / server markers inside the card) */
.mn-collapsible-card.mn-collapsible-card--error {
  border-color: rgba(180, 35, 24, 0.2);
  box-shadow:
    0 0 0 1px rgba(180, 35, 24, 0.12),
    inset 3px 0 0 0 rgba(180, 35, 24, 0.45);
}

.mn-collapsible-card.mn-collapsible-card--error .mn-collapsible-header {
  padding-left: 0.35rem;
  margin-left: -0.15rem;
}

.mn-collapsible-card.mn-collapsible-card--error .mn-collapsible-chevron {
  border-color: rgba(180, 35, 24, 0.35);
}

.mn-collapsible-card.is-open.mn-collapsible-card--error {
  border-color: rgba(180, 35, 24, 0.22);
  box-shadow:
    0 0 0 1px rgba(180, 35, 24, 0.1),
    inset 3px 0 0 0 rgba(180, 35, 24, 0.45);
}

.mn-collapsible-body {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  padding-top: 0;
  margin-top: 0;
  transition:
    max-height 0.26s cubic-bezier(0.33, 1, 0.68, 1),
    opacity 0.2s ease,
    padding-top 0.2s ease,
    margin-top 0.2s ease;
}

.mn-collapsible-card.is-open .mn-collapsible-body {
  max-height: 6000px;
  opacity: 1;
  padding-top: 0.15rem;
  margin-top: 0.85rem;
}

@media (max-width: 640px) {
  .mn-collapsible-header {
    gap: 0.65rem 0.75rem;
    padding-right: 0;
  }

  .mn-collapsible-chevron {
    width: 2.5rem;
    height: 2.5rem;
  }

  .mn-collapsible-header-main .section-heading p,
  .mn-collapsible-header-main .school-profile-card__header p {
    max-width: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .mn-collapsible-card,
  .mn-collapsible-header,
  .mn-collapsible-chevron,
  .mn-collapsible-chevron::before,
  .mn-collapsible-body {
    transition-duration: 0.01ms !important;
  }
}