/*
 * Browse Page Styles
 * ==================
 */

/* ===== PAGE HEADER ===== */

.browse-header {
  padding: var(--space-8) 0 var(--space-6);
}

.browse-header__inner {
  max-width: var(--size-max);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

@media (min-width: 640px) {
  .browse-header__inner {
    padding: 0 var(--space-6);
  }
}

@media (min-width: 1024px) {
  .browse-header__inner {
    padding: 0 var(--space-8);
  }
}

.browse-header__title {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: var(--font-normal);
  margin-bottom: var(--space-2);
}

.browse-header__description {
  font-size: var(--text-lg);
  color: var(--fg-muted);
  max-width: 48rem;
}


/* ===== MODE TOGGLE ===== */

.mode-toggle {
  display: inline-flex;
  padding: var(--space-1);
  
  background-color: var(--bg-muted);
  border-radius: var(--radius-lg);
}

.mode-toggle__option {
  padding: var(--space-2) var(--space-4);
  
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--fg-muted);
  
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  
  cursor: pointer;
  transition: color var(--duration-fast) var(--ease-default),
              background-color var(--duration-fast) var(--ease-default);
}

.mode-toggle__option:hover {
  color: var(--fg);
}

.mode-toggle__option.is-active {
  color: var(--accent-fg);
  background-color: var(--accent);
  box-shadow: var(--shadow-sm);
}


/* ===== SCHOOLS CONTAINER ===== */

.browse-content {
  max-width: var(--size-max);
  margin: 0 auto;
  padding: 0 var(--space-4) var(--space-16);
}

@media (min-width: 640px) {
  .browse-content {
    padding: 0 var(--space-6) var(--space-16);
  }
}

@media (min-width: 1024px) {
  .browse-content {
    padding: 0 var(--space-8) var(--space-16);
  }
}


/* ===== SCHOOL SECTION ===== */

.school-section {
  margin-bottom: var(--space-8);
}

.school-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);

  padding: var(--space-3) var(--space-5);

  background-color: var(--bg-elevated);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);

  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-default);
}

.school-header:hover {
  border-color: var(--fg-subtle);
}

.school-header.is-open {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  border-bottom-color: transparent;
}

.school-header__info {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.school-header__icon {
  display: flex;
  align-items: center;
  justify-content: center;

  width: 2.5rem;
  height: 2.5rem;

  background-color: var(--color-primary-100);
  color: var(--primary);

  border-radius: var(--radius-lg);
}

[data-theme="dark"] .school-header__icon {
  background-color: var(--bg-muted);
  color: var(--color-primary-400);
}

.school-header__icon svg {
  width: 1.5rem;
  height: 1.5rem;
}

.school-header__title {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--fg);
}

.school-header__count {
  font-size: var(--text-sm);
  color: var(--fg-muted);
}

.school-header__chevron {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--fg-muted);
  transition: transform var(--duration-normal) var(--ease-default);
}

.school-header.is-open .school-header__chevron {
  transform: rotate(180deg);
}


/* ===== DEPARTMENTS GRID ===== */

.departments-grid {
  display: none;
  
  padding: var(--space-4);
  
  background-color: var(--bg-elevated);
  border: 1px solid var(--border);
  border-top: none;
  border-bottom-left-radius: var(--radius-xl);
  border-bottom-right-radius: var(--radius-xl);
}

.departments-grid.is-open {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
}

@media (min-width: 640px) {
  .departments-grid.is-open {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .departments-grid.is-open {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1280px) {
  .departments-grid.is-open {
    grid-template-columns: repeat(4, 1fr);
  }
}


/* ===== DEPARTMENT CARD ===== */

.department-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  
  padding: var(--space-3) var(--space-4);
  
  text-decoration: none;
  color: var(--fg);
  
  border-radius: var(--radius-lg);
  
  transition: background-color var(--duration-fast) var(--ease-default);
}

.department-card:hover {
  background-color: var(--bg-muted);
  text-decoration: none;
}

.department-card__name {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  flex: 1;
}

.department-card__arrow {
  width: 1rem;
  height: 1rem;
  color: var(--fg-subtle);
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease-default),
              transform var(--duration-fast) var(--ease-default);
}

.department-card:hover .department-card__arrow {
  opacity: 1;
  transform: translateX(4px);
}


/* ===== CLUB CATEGORIES ===== */

.club-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .club-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .club-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.club-card {
  display: flex;
  flex-direction: column;
  
  padding: var(--space-6);
  
  background-color: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  
  text-decoration: none;
  color: var(--fg);
  
  transition: border-color var(--duration-fast) var(--ease-default),
              box-shadow var(--duration-fast) var(--ease-default),
              transform var(--duration-fast) var(--ease-default);
}

.club-card:hover {
  border-color: var(--fg-subtle);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  text-decoration: none;
}

.club-card__title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-2);
}

.club-card__count {
  font-size: var(--text-sm);
  color: var(--fg-muted);
}


/* ===== ADVANCED SEARCH FORM ===== */

.advanced-search {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
}

.advanced-search__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

@media (max-width: 767px) {
  .advanced-search__grid {
    grid-template-columns: 1fr;
  }

  .advanced-search__grid > * {
    min-width: 0;
  }

  /* Stack days and times: side-by-side flex + non-shrinking time picks caused overlap */
  .advanced-search__days-times {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
  }

  .advanced-search__days-times .advanced-search__days {
    flex: none;
    min-width: 0;
  }

  .advanced-search__times {
    flex-shrink: 1;
    width: 100%;
    min-width: 0;
  }

  .advanced-search__times .advanced-search__field {
    flex: 1;
    min-width: 0;
  }

  .advanced-search__times .advanced-search__field input {
    width: 100%;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .advanced-search__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.advanced-search__field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

/* Span 2 columns in the 3-col grid */
.advanced-search__field--span2 {
  grid-column: span 2;
}

@media (max-width: 1023px) {
  .advanced-search__field--span2 {
    grid-column: span 1;
  }
}

.advanced-search__field label:not(.advanced-search__checkbox) {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.advanced-search__field input:not([type="checkbox"]),
.advanced-search__field select {
  width: 100%;
  height: 2.25rem;
  padding: 0 var(--space-3);
  font-size: var(--text-sm);
  color: var(--fg);
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-fast) var(--ease-default);
}

.advanced-search__field input:not([type="checkbox"]):focus,
.advanced-search__field select:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 2px var(--color-primary-100);
}

.advanced-search__range {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.advanced-search__range input {
  flex: 1;
  min-width: 0;
  height: 2.25rem;
  padding: 0 var(--space-3);
  font-size: var(--text-sm);
  color: var(--fg);
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-fast) var(--ease-default);
}

.advanced-search__range input:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 2px var(--color-primary-100);
}

.advanced-search__range-sep {
  color: var(--fg-muted);
  font-size: var(--text-sm);
}

/* Checkbox field (aligned to input row in grid) */
.advanced-search__field--checkbox label:first-child {
  visibility: hidden;
}

/* Single checkbox in a grid cell: fill the row below the label and center (match input band). */
.advanced-search__field--checkbox .advanced-search__checkbox {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 2.25rem;
}

.advanced-search__checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: var(--text-sm);
  color: var(--fg);
}

/* Divider between basic and advanced fields */
.advanced-search__divider {
  border-top: 1px solid var(--border);
  margin-bottom: var(--space-4);
}

/* Fieldset (disciplines, days & times) */
.advanced-search__fieldset {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-4);
}

.advanced-search__fieldset legend {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  padding: 0 var(--space-2);
}

/* Inline checkbox lists (disciplines, days) */
.advanced-search__days {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* Days & times combined row */
.advanced-search__days-times {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
}

.advanced-search__days-times .advanced-search__days {
  flex: 1;
  min-width: 0;
}

.advanced-search__times {
  display: flex;
  gap: var(--space-3);
  flex-shrink: 0;
}

.advanced-search__times .advanced-search__field input {
  width: 8rem;
}

/* Advanced collapsible section */
.advanced-search__advanced {
  margin-bottom: var(--space-2);
}

.advanced-search__advanced > summary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--accent);
  cursor: pointer;
  user-select: none;
  margin-bottom: var(--space-4);
  list-style: none;
}

.advanced-search__advanced > summary::-webkit-details-marker { display: none; }

.advanced-search__advanced > summary::after {
  content: '▾';
  font-size: var(--text-xs);
  transition: transform var(--duration-fast) var(--ease-default);
}

.advanced-search__advanced[open] > summary::after {
  transform: rotate(180deg);
}

/* Actions */
.advanced-search__actions {
  display: flex;
  gap: var(--space-3);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
}

/* Separator between form and department list */
.browse-separator {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0 0 var(--space-8);
}

/* Search empty state */
.search-empty {
  text-align: center;
  padding: var(--space-12) var(--space-4);
  color: var(--fg-muted);
}

.search-empty h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}

/* Live advanced search (XHR partial) */
.browse-advanced-results-root[aria-busy="true"] {
  position: relative;
  min-height: 10rem;
  opacity: 0.65;
  transition: opacity var(--duration-fast) var(--ease-default);
}

.browse-advanced-results-root[aria-busy="true"]::after {
  content: "Updating results…";
  position: absolute;
  top: var(--space-2);
  left: 0;
  right: 0;
  font-size: var(--text-sm);
  color: var(--fg-muted);
  text-align: center;
  pointer-events: none;
}