/* ============================================================
   COLLEGES.CSS — College Listing & Filter Page Styles
   Campus List | Admission Consultant Website
   ============================================================ */

/* ── Page Layout ── */
.colleges-page {
  min-height: 100vh;
  background: var(--clr-dark-950);
  padding-top: var(--navbar-height);
}

/* ════════════════════════════════════════════
   PAGE HERO (top banner)
════════════════════════════════════════════ */
.page-hero {
  background: var(--gradient-hero);
  padding: var(--space-16) 0 var(--space-12);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(99,102,241,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,0.06) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}

.page-hero__orb {
  position: absolute;
  width: 500px; height: 500px;
  top: -200px; right: -100px;
  background: radial-gradient(circle, rgba(99,102,241,0.25) 0%, transparent 65%);
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
}

.page-hero__inner {
  position: relative;
  z-index: 2;
}

.page-hero__tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: rgba(99,102,241,0.12);
  border: var(--border-primary);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--clr-primary-300);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.page-hero__title {
  font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl));
  font-weight: var(--font-black);
  line-height: 1.1;
  margin-bottom: var(--space-3);
}

.page-hero__subtitle {
  font-size: var(--text-lg);
  color: var(--clr-text-secondary);
  max-width: 560px;
  margin-inline: auto;
  line-height: var(--leading-relaxed);
}

/* ════════════════════════════════════════════
   SEARCH + FILTER BAR
════════════════════════════════════════════ */
.filter-bar {
  background: var(--clr-surface-1);
  border-bottom: var(--border-subtle);
  padding: var(--space-5) 0;
  position: sticky;
  top: var(--navbar-height);
  z-index: var(--z-sticky);
  backdrop-filter: blur(12px);
}

.filter-bar__inner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* Search input */
.filter-search {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex: 1;
  min-width: 200px;
  background: rgba(255,255,255,0.05);
  border: var(--border-light);
  border-radius: var(--radius-full);
  padding: 0.625rem var(--space-4);
  transition: border-color var(--transition-base), background var(--transition-base);
}

.filter-search:focus-within {
  border-color: rgba(99,102,241,0.6);
  background: rgba(99,102,241,0.06);
}

.filter-search__icon {
  font-size: 1rem;
  color: var(--clr-text-muted);
  flex-shrink: 0;
}

.filter-search__input {
  border: none;
  background: transparent;
  color: var(--clr-text-primary);
  font-size: var(--text-sm);
  font-family: var(--font-body);
  width: 100%;
}

.filter-search__input::placeholder {
  color: var(--clr-text-muted);
}

/* Select filters */
.filter-select {
  padding: 0.625rem var(--space-10) 0.625rem var(--space-4);
  background: rgba(255,255,255,0.05);
  border: var(--border-light);
  border-radius: var(--radius-full);
  color: var(--clr-text-secondary);
  font-size: var(--text-sm);
  font-family: var(--font-body);
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237070a0' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  transition: border-color var(--transition-base), background var(--transition-base);
  min-width: 150px;
}

.filter-select:focus {
  border-color: rgba(99,102,241,0.6);
  outline: none;
}

.filter-select option {
  background: var(--clr-dark-800);
  color: var(--clr-text-primary);
}

/* Result count */
.filter-count {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  white-space: nowrap;
  margin-left: auto;
}

.filter-count strong {
  color: var(--clr-primary-300);
  font-weight: var(--font-bold);
}

/* Clear filters btn */
.filter-clear {
  display: none;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-sm);
  color: var(--clr-accent-500);
  cursor: pointer;
  padding: 0.4rem var(--space-3);
  border: 1px solid rgba(249,115,22,0.3);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  white-space: nowrap;
  background: rgba(249,115,22,0.06);
}

.filter-clear.visible { display: flex; }
.filter-clear:hover {
  background: rgba(249,115,22,0.12);
  border-color: rgba(249,115,22,0.5);
}

/* ════════════════════════════════════════════
   FACULTY TABS
════════════════════════════════════════════ */
.faculty-tabs {
  background: var(--clr-dark-950);
  padding: var(--space-6) 0 0;
  border-bottom: var(--border-subtle);
}

.faculty-tabs__inner {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: 0;
}

.faculty-tabs__inner::-webkit-scrollbar { display: none; }

.faculty-tab {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--clr-text-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-base);
  border: var(--border-subtle);
  border-bottom: none;
  background: transparent;
  position: relative;
  bottom: -1px;
}

.faculty-tab:hover {
  color: var(--clr-text-secondary);
  background: rgba(255,255,255,0.03);
}

.faculty-tab.active {
  background: var(--clr-dark-950);
  color: var(--clr-primary-300);
  border-color: rgba(99,102,241,0.3);
  border-bottom-color: var(--clr-dark-950);
}

.faculty-tab__icon { font-size: 1rem; }

.faculty-tab__count {
  background: rgba(99,102,241,0.15);
  color: var(--clr-primary-300);
  font-size: 0.65rem;
  font-weight: var(--font-bold);
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-full);
  min-width: 20px;
  text-align: center;
}

/* ════════════════════════════════════════════
   PROGRAMS GRID
════════════════════════════════════════════ */
.programs-section {
  padding: var(--space-10) 0 var(--space-20);
  background: var(--clr-dark-950);
}

.programs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

/* Program Card */
.program-card {
  background: var(--gradient-card);
  border: var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.program-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.program-card:hover {
  border-color: rgba(99,102,241,0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(99,102,241,0.1);
}

.program-card:hover::before {
  transform: scaleX(1);
}

/* Program card header */
.program-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-4);
  gap: var(--space-3);
}

.program-card__faculty-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.7rem;
  font-weight: var(--font-semibold);
  color: var(--clr-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.program-card__level {
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: var(--font-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.level-ug   { background: rgba(59,130,246,0.15);   color: #60a5fa; border: 1px solid rgba(59,130,246,0.25); }
.level-pg   { background: rgba(139,92,246,0.15);   color: #a78bfa; border: 1px solid rgba(139,92,246,0.25); }
.level-dip  { background: rgba(249,115,22,0.15);   color: #fb923c; border: 1px solid rgba(249,115,22,0.25); }
.level-cert { background: rgba(16,185,129,0.15);   color: #34d399; border: 1px solid rgba(16,185,129,0.25); }

/* Program name */
.program-card__name {
  font-size: var(--text-base);
  font-weight: var(--font-bold);
  line-height: 1.35;
  margin-bottom: var(--space-3);
  color: var(--clr-text-primary);
}

/* Meta info row */
.program-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}

.program-card__meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  color: var(--clr-text-muted);
}

.program-card__meta-item span:first-child { font-size: 0.85rem; }

/* Streams tags */
.program-card__streams {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
  max-height: 54px;
  overflow: hidden;
  position: relative;
}

.program-card__streams.expanded {
  max-height: none;
}

.stream-tag {
  padding: 0.2rem 0.6rem;
  background: rgba(99,102,241,0.08);
  border: 1px solid rgba(99,102,241,0.15);
  border-radius: var(--radius-full);
  font-size: 0.68rem;
  font-weight: var(--font-medium);
  color: var(--clr-text-secondary);
  white-space: nowrap;
}

.stream-more {
  padding: 0.2rem 0.6rem;
  background: rgba(99,102,241,0.15);
  border: 1px solid rgba(99,102,241,0.25);
  border-radius: var(--radius-full);
  font-size: 0.68rem;
  font-weight: var(--font-bold);
  color: var(--clr-primary-300);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.stream-more:hover {
  background: rgba(99,102,241,0.25);
}

/* Footer of card */
.program-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  border-top: var(--border-subtle);
  gap: var(--space-3);
}

.program-card__fee {
  display: flex;
  flex-direction: column;
}

.program-card__fee-label {
  font-size: 0.65rem;
  color: var(--clr-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.program-card__fee-amount {
  font-size: var(--text-lg);
  font-weight: var(--font-black);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.program-card__apply-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.5rem 1.1rem;
  background: var(--gradient-cta);
  color: #fff;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  font-family: var(--font-heading);
  text-decoration: none;
  transition: all var(--transition-base);
  white-space: nowrap;
  box-shadow: 0 0 15px rgba(99,102,241,0.3);
}

.program-card__apply-btn:hover {
  box-shadow: 0 0 25px rgba(99,102,241,0.5);
  transform: translateY(-1px);
}

/* Eligibility row */
.program-card__eligibility {
  margin-top: var(--space-3);
  font-size: var(--text-xs);
  color: var(--clr-text-muted);
  line-height: 1.5;
  display: flex;
  align-items: flex-start;
  gap: var(--space-1);
}

.program-card__eligibility::before {
  content: '📋';
  font-size: 0.75rem;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ── Highlight / popular tag ── */
.program-card.is-popular::after {
  content: '🔥 Popular';
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  padding: 0.2rem 0.6rem;
  background: rgba(249,115,22,0.15);
  border: 1px solid rgba(249,115,22,0.3);
  border-radius: var(--radius-full);
  font-size: 0.65rem;
  font-weight: var(--font-bold);
  color: #fb923c;
}

/* ════════════════════════════════════════════
   EMPTY STATE
════════════════════════════════════════════ */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-20) var(--space-8);
}

.empty-state__icon {
  font-size: 4rem;
  margin-bottom: var(--space-4);
}

.empty-state__title {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-3);
}

.empty-state__subtitle {
  font-size: var(--text-base);
  color: var(--clr-text-muted);
  margin-bottom: var(--space-6);
}

/* ════════════════════════════════════════════
   LIGHT THEME OVERRIDES
════════════════════════════════════════════ */
[data-theme="light"] .filter-bar {
  background: rgba(245,247,255,0.95);
  border-bottom-color: rgba(99,102,241,0.12);
}

[data-theme="light"] .filter-search {
  background: #fff;
  border-color: rgba(99,102,241,0.2);
}

[data-theme="light"] .filter-select {
  background-color: #fff;
  border-color: rgba(99,102,241,0.2);
  color: var(--clr-text-secondary);
}

[data-theme="light"] .faculty-tabs {
  background: #f5f7ff;
  border-bottom-color: rgba(99,102,241,0.12);
}

[data-theme="light"] .faculty-tab {
  background: transparent;
  border-color: rgba(99,102,241,0.1);
  border-bottom: none;
}

[data-theme="light"] .faculty-tab.active {
  background: #f5f7ff;
  border-color: rgba(99,102,241,0.3);
}

[data-theme="light"] .programs-section {
  background: #f5f7ff;
}

[data-theme="light"] .program-card {
  background: #fff;
  border-color: rgba(99,102,241,0.1);
  box-shadow: var(--shadow-sm);
}

[data-theme="light"] .program-card:hover {
  box-shadow: var(--shadow-lg);
}

[data-theme="light"] .stream-tag {
  background: rgba(99,102,241,0.06);
  border-color: rgba(99,102,241,0.15);
  color: var(--clr-text-secondary);
}

[data-theme="light"] .page-hero {
  background: var(--gradient-hero);
}

/* ════════════════════════════════════════════
   RESPONSIVE
════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .programs-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .programs-grid { grid-template-columns: 1fr; }
  .filter-bar__inner { gap: var(--space-2); }
  .filter-select { min-width: 120px; font-size: var(--text-xs); }
  .filter-count { display: none; }
}