/* ==========================================================================
   FEC CSE Hub - Specialized Component Styles
   ========================================================================== */

/* Search Bar */
.search-container {
  max-width: 680px;
  margin: 0 auto 2rem auto;
  position: relative;
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 1.25rem;
  color: var(--text-muted);
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 0.95rem 1.25rem 0.95rem 3.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-primary);
  font-size: 1rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all var(--transition-fast);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.18);
}

.search-clear {
  position: absolute;
  right: 1.25rem;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: none;
}

/* Category Filter Pills */
.filter-container {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}

.filter-pill {
  padding: 0.45rem 1.1rem;
  border-radius: var(--radius-full);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-pill:hover {
  color: var(--text-primary);
  border-color: var(--border-glow);
  transform: translateY(-1px);
}

.filter-pill.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #ffffff;
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.35);
}

/* Book Card */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.75rem;
}

.book-card {
  background: var(--bg-card);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

.book-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.3);
}

.book-cover-wrap {
  width: 100%;
  height: 220px;
  background: var(--bg-tertiary);
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.book-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.book-card:hover .book-cover {
  transform: scale(1.05);
}

.book-badge {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: rgba(11, 15, 25, 0.8);
  backdrop-filter: blur(8px);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: #a5b4fc;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.book-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.book-title {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 0.35rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.book-author {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
}

.book-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.book-tag {
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
}

.book-actions {
  margin-top: auto;
  display: flex;
  gap: 0.5rem;
}

.book-actions .btn {
  flex: 1;
  padding: 0.6rem 0.75rem;
  font-size: 0.85rem;
}

/* Modal Popup */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.modal-overlay.open {
  display: flex;
  opacity: 1;
}

.modal-card {
  background: var(--bg-secondary);
  border: var(--glass-border);
  border-radius: var(--radius-xl);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2rem;
  position: relative;
  box-shadow: var(--glass-shadow);
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}

.modal-overlay.open .modal-card {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  cursor: pointer;
}

/* Faculty & Teacher Directory */
.teachers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.teacher-card {
  display: flex;
  gap: 1.25rem;
  background: var(--bg-card);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  align-items: center;
  transition: all var(--transition-normal);
}

.teacher-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-glow);
}

.teacher-avatar {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-md);
  object-fit: cover;
  background: var(--bg-tertiary);
  border: 2px solid var(--border-color);
  flex-shrink: 0;
}

.teacher-info h3 {
  font-size: 1.05rem;
  margin-bottom: 0.2rem;
}

.teacher-role {
  font-size: 0.85rem;
  color: var(--accent-primary);
  font-weight: 500;
  margin-bottom: 0.15rem;
}

.teacher-dept {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.65rem;
}

.teacher-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.btn-contact {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.65rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.btn-contact:hover {
  color: var(--text-primary);
  border-color: var(--accent-primary);
}

/* Tool & Software Cards */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.tool-card {
  background: var(--bg-card);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.tool-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
}

.tool-header {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.tool-icon-wrap {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-tertiary);
}

.tool-steps {
  margin: 1rem 0 1.5rem 1.25rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.tool-steps li {
  margin-bottom: 0.4rem;
}

/* Sources Table */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: var(--glass-border);
  background: var(--bg-card);
}

.custom-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.custom-table th {
  background: var(--bg-tertiary);
  padding: 1rem 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
}

.custom-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.custom-table tr:last-child td {
  border-bottom: none;
}

.custom-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-primary);
}

[data-theme="light"] .custom-table tr:hover td {
  background: rgba(0, 0, 0, 0.02);
}

/* Form Styles for Add-Book Helper */
.form-card {
  max-width: 760px;
  margin: 0 auto;
  background: var(--bg-card);
  border: var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 2.25rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.code-output {
  background: #000000;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  font-family: 'Fira Code', monospace;
  font-size: 0.85rem;
  color: #10b981;
  overflow-x: auto;
  position: relative;
}

.copy-badge {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
}

/* Toast Notifications */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--accent-emerald);
  color: #ffffff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  z-index: 300;
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-fast);
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}