/* ============================================
   Modal Styles
   ============================================ */

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 5000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.modal.show {
  display: flex;
}

.modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  animation: fadeIn var(--transition-normal);
}

.modal-content {
  position: relative;
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 600px;
  width: 100%;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  animation: slideUp var(--transition-normal);
}

.modal-small {
  max-width: 480px;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Modal Header */
.modal-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  padding: var(--spacing-xs);
  cursor: pointer;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  background: var(--color-bg-page);
  color: var(--color-text-primary);
}

.modal-close .material-icons {
  font-size: 24px;
}

/* Modal Body */
.modal-body {
  padding: var(--spacing-lg);
  overflow-y: auto;
  flex: 1;
}

/* Modal Footer */
.modal-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
}

/* ============================================
   Form Elements
   ============================================ */

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.form-input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: var(--font-family);
  transition: all var(--transition-fast);
}

.form-input:hover {
  border-color: var(--color-primary);
}

.form-input:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-color: var(--color-primary);
}

/* ============================================
   Cover Grid (Edit Modal)
   ============================================ */

.cover-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--spacing-sm);
  max-height: 300px;
  overflow-y: auto;
  padding: var(--spacing-xs);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.cover-item {
  position: relative;
  padding-top: 100%; /* Square aspect ratio */
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition-fast);
}

.cover-item:hover {
  border-color: var(--color-primary);
  transform: scale(1.05);
}

.cover-item.selected {
  border-color: var(--color-success);
  box-shadow: 0 0 0 2px var(--color-success);
}

.cover-item img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cover-item-check {
  position: absolute;
  top: 4px;
  right: 4px;
  background: var(--color-success);
  color: white;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.cover-item.selected .cover-item-check {
  display: flex;
}

/* ============================================
   Delete List (Delete Modal)
   ============================================ */

.delete-list {
  max-height: 300px;
  overflow-y: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--spacing-sm);
}

.delete-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  cursor: pointer;
}

.delete-item:hover {
  background: var(--color-bg-page);
}

.delete-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--color-primary);
}

.delete-item-info {
  flex: 1;
}

.delete-item-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-primary);
}

.delete-item-date {
  font-size: 12px;
  color: var(--color-text-secondary);
}

.delete-counter {
  margin-top: var(--spacing-md);
  padding: var(--spacing-sm);
  background: var(--color-bg-page);
  border-radius: var(--radius-sm);
  text-align: center;
  font-size: 14px;
  color: var(--color-text-primary);
}

/* ============================================
   Delete Confirm List
   ============================================ */

#delete-confirm-list {
  list-style: none;
  padding: var(--spacing-md) 0;
  margin: var(--spacing-md) 0;
}

#delete-confirm-list li {
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--color-bg-page);
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-xs);
  font-size: 14px;
  color: var(--color-text-primary);
}

#delete-confirm-list li::before {
  content: '•';
  margin-right: var(--spacing-xs);
  color: var(--color-danger);
  font-weight: bold;
}

.warning-text {
  color: var(--color-danger);
  font-weight: 500;
  font-size: 14px;
  padding: var(--spacing-md);
  background: #fff5f5;
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--color-danger);
}

/* ============================================
   Filter Modal
   ============================================ */

.filter-section {
  margin-bottom: var(--spacing-lg);
}

.filter-section h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.filter-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.filter-option {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 14px;
  background: white;
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.filter-option:hover {
  border-color: var(--color-primary);
  background: #f8f9fa;
}

.filter-option.selected {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.filter-option input[type="checkbox"] {
  display: none;
}

.filter-option .material-icons {
  font-size: 18px;
  display: none;
}

.filter-option.selected .material-icons {
  display: inline-block;
}