/* Reusable UI Components */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: var(--spacing-sm) var(--spacing-md); font-size: 0.875rem; font-weight: 500; border: none; border-radius: var(--radius-md); cursor: pointer; transition: all 0.2s; gap: var(--spacing-xs); }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--color-primary); color: white; }
.btn-primary:hover { background: var(--color-primary-hover); }
.btn-secondary { background: var(--color-surface); color: var(--color-text-primary); border: 1px solid var(--color-border); }
.btn-text { background: transparent; color: var(--color-primary); }
.btn-icon { padding: var(--spacing-sm); background: transparent; color: var(--color-text-primary); }
.btn-block { width: 100%; }
.btn-sm { padding: var(--spacing-xs) var(--spacing-sm); font-size: 0.75rem; }
.form-group { margin-bottom: var(--spacing-md); }
.form-group label { display: block; margin-bottom: var(--spacing-xs); font-weight: 500; font-size: 0.875rem; color: var(--color-text-secondary); }
.form-group input, .form-group textarea, .form-group select { width: 100%; padding: var(--spacing-sm) var(--spacing-md); background: var(--color-background); border: 1px solid var(--color-border); border-radius: var(--radius-md); font-family: inherit; font-size: 0.875rem; color: var(--color-text-primary); }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { outline: none; border-color: var(--color-primary); }
.search-container input { padding: var(--spacing-sm) var(--spacing-md); background: var(--color-background); border: 1px solid var(--color-border); border-radius: var(--radius-md); font-size: 0.875rem; color: var(--color-text-primary); min-width: 250px; }
.user-menu { position: relative; }
.dropdown { position: absolute; top: 100%; right: 0; margin-top: var(--spacing-xs); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); box-shadow: var(--shadow-lg); min-width: 150px; overflow: hidden; }
.dropdown a { display: block; padding: var(--spacing-sm) var(--spacing-md); color: var(--color-text-primary); text-decoration: none; }
.dropdown a:hover { background: var(--color-background); }
.dropdown hr { border: none; border-top: 1px solid var(--color-border); margin: 0; }
.auth-tabs { display: flex; margin-bottom: var(--spacing-lg); border-bottom: 1px solid var(--color-border); }
.auth-tab { flex: 1; padding: var(--spacing-md); background: transparent; border: none; border-bottom: 2px solid transparent; cursor: pointer; font-weight: 500; color: var(--color-text-secondary); }
.auth-tab.active { color: var(--color-primary); border-bottom-color: var(--color-primary); }
.auth-footer { text-align: center; margin-top: var(--spacing-md); font-size: 0.875rem; }
.auth-error { background: #fee2e2; color: #dc2626; padding: var(--spacing-sm) var(--spacing-md); border-radius: var(--radius-md); margin-bottom: var(--spacing-md); font-size: 0.875rem; text-align: center; }
.auth-success { background: #dcfce7; color: #16a34a; padding: var(--spacing-sm) var(--spacing-md); border-radius: var(--radius-md); margin-bottom: var(--spacing-md); font-size: 0.875rem; text-align: center; }
.filter-group { display: flex; flex-direction: column; gap: var(--spacing-sm); }
.filter-group label { display: flex; align-items: center; gap: var(--spacing-sm); font-size: 0.875rem; cursor: pointer; }
.btn-danger { background: #dc2626; color: white; }
.btn-danger:hover { background: #b91c1c; }
.form-row { display: flex; gap: var(--spacing-md); }
.form-row .form-group { flex: 1; }
.form-label-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--spacing-xs); }
.form-label-row label { margin-bottom: 0; }
.quick-add-buttons { display: flex; gap: var(--spacing-xs); }
.quick-add-inline { display: flex; gap: var(--spacing-sm); margin-bottom: var(--spacing-sm); padding: var(--spacing-sm); background: var(--color-background); border-radius: var(--radius-md); }
.quick-add-inline input { flex: 1; padding: var(--spacing-xs) var(--spacing-sm); border: 1px solid var(--color-border); border-radius: var(--radius-sm); font-size: 0.8125rem; color: var(--color-text-primary); background: var(--color-surface); }
.quick-add-inline select { padding: var(--spacing-xs) var(--spacing-sm); border: 1px solid var(--color-border); border-radius: var(--radius-sm); font-size: 0.8125rem; background: var(--color-surface); color: var(--color-text-primary); }
.quick-add-tag-form { flex-direction: column; }
.quick-add-row { display: flex; align-items: center; gap: var(--spacing-sm); }
.quick-add-row label { font-size: 0.75rem; color: var(--color-text-secondary); min-width: 60px; }
.quick-add-row select { flex: 1; }
.quick-add-row input { flex: 1; }

/* Toast Notifications */
.toast { display: flex; align-items: center; gap: var(--spacing-sm); padding: var(--spacing-sm) var(--spacing-md); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); box-shadow: var(--shadow-lg); margin-bottom: var(--spacing-sm); min-width: 280px; max-width: 400px; opacity: 0; transform: translateX(100%); transition: all 0.3s ease; }
.toast-visible { opacity: 1; transform: translateX(0); }
.toast-hiding { opacity: 0; transform: translateX(100%); }
.toast-message { flex: 1; font-size: 0.875rem; }
.toast-close { background: none; border: none; cursor: pointer; font-size: 1.25rem; color: var(--color-text-tertiary); padding: 0; line-height: 1; }
.toast-success { border-left: 4px solid #16a34a; }
.toast-error { border-left: 4px solid #dc2626; }
.toast-warning { border-left: 4px solid #d97706; }
.toast-info { border-left: 4px solid #2563eb; }

/* Modal */
.modal { background: var(--color-surface); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); max-height: 90vh; overflow: hidden; display: flex; flex-direction: column; }
.modal-small { width: 400px; }
.modal-medium { width: 560px; }
.modal-large { width: 720px; }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: var(--spacing-md) var(--spacing-lg); border-bottom: 1px solid var(--color-border); }
.modal-title { margin: 0; font-size: 1.125rem; }
.modal-close { font-size: 1.5rem; color: var(--color-text-tertiary); }
.modal-body { padding: var(--spacing-lg); overflow-y: auto; flex: 1; }
.modal-footer { display: flex; justify-content: flex-end; gap: var(--spacing-sm); padding: var(--spacing-md) var(--spacing-lg); border-top: 1px solid var(--color-border); }

/* Prompt Cards */
.prompt-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--spacing-md); cursor: pointer; transition: all 0.2s; }
.prompt-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-md); }
.prompt-card-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: var(--spacing-sm); }
.prompt-card-title { margin: 0; font-size: 1rem; font-weight: 600; line-height: 1.3; }
.prompt-card-actions { display: flex; gap: var(--spacing-xs); opacity: 0; transition: opacity 0.2s; }
.prompt-card:hover .prompt-card-actions { opacity: 1; }
.prompt-card-body { margin-bottom: var(--spacing-sm); }
.prompt-card-preview { font-size: 0.875rem; color: var(--color-text-secondary); margin: 0; line-height: 1.5; }
.prompt-card-variables { display: flex; flex-wrap: wrap; gap: var(--spacing-xs); margin-top: var(--spacing-sm); }
.prompt-card-footer { display: flex; align-items: center; justify-content: space-between; }
.prompt-card-tags { display: flex; flex-wrap: wrap; gap: var(--spacing-xs); }
.prompt-card-date { font-size: 0.75rem; color: var(--color-text-tertiary); }

/* Prompt List Items */
.prompt-list-item { display: flex; align-items: center; gap: var(--spacing-md); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--spacing-md); cursor: pointer; transition: all 0.2s; }
.prompt-list-item:hover { border-color: var(--color-primary); }
.prompt-list-content { flex: 1; min-width: 0; }
.prompt-list-title { margin: 0 0 var(--spacing-xs) 0; font-size: 0.9375rem; font-weight: 500; }
.prompt-list-preview { margin: 0; font-size: 0.8125rem; color: var(--color-text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.prompt-list-meta { display: flex; flex-direction: column; align-items: flex-end; gap: var(--spacing-xs); }
.prompt-list-tags { display: flex; gap: var(--spacing-xs); }
.prompt-list-date { font-size: 0.75rem; color: var(--color-text-tertiary); }
.prompt-list-actions { display: flex; gap: var(--spacing-xs); }

/* Tags */
.tag-chip { display: inline-flex; align-items: center; padding: 2px 8px; background: var(--tag-color, var(--color-background)); border-radius: var(--radius-sm); font-size: 0.75rem; color: var(--color-text-secondary); }
.tag-sm { font-size: 0.6875rem; padding: 1px 6px; }
.tag-more { background: var(--color-border); }
.tag-selectable { cursor: pointer; border: 1px solid transparent; transition: all 0.2s; }
.tag-selectable:hover { border-color: var(--color-primary); }
.tag-selectable.selected { background: var(--color-primary); color: white; }
.tag-selector { display: flex; flex-wrap: wrap; gap: var(--spacing-xs); }
.variable-chip { background: #fef3c7; color: #92400e; padding: 2px 6px; border-radius: var(--radius-sm); font-size: 0.75rem; font-family: monospace; }

/* Category Tree */
.category-item { margin-bottom: var(--spacing-xs); }
.category-header { display: flex; align-items: center; gap: var(--spacing-xs); padding: var(--spacing-xs) var(--spacing-sm); border-radius: var(--radius-sm); cursor: pointer; transition: background 0.2s; }
.category-header:hover { background: var(--color-background); }
.category-toggle { width: 16px; font-size: 0.625rem; color: var(--color-text-tertiary); }
.category-icon { font-size: 1rem; }
.category-name { flex: 1; font-size: 0.875rem; font-weight: 500; }
.category-count { font-size: 0.75rem; color: var(--color-text-tertiary); background: var(--color-background); padding: 1px 6px; border-radius: var(--radius-sm); }
.category-tags { padding-left: calc(16px + var(--spacing-sm)); }
.tag-item { display: flex; align-items: center; justify-content: space-between; padding: var(--spacing-xs) var(--spacing-sm); font-size: 0.8125rem; color: var(--color-text-secondary); cursor: pointer; border-radius: var(--radius-sm); }
.tag-item:hover { background: var(--color-background); color: var(--color-primary); }
.tag-item.active { background: var(--color-primary); color: white; }
.tag-prompt-count { font-size: 0.6875rem; background: var(--color-background); padding: 1px 5px; border-radius: var(--radius-sm); color: var(--color-text-tertiary); }
.tag-item:hover .tag-prompt-count { background: var(--color-surface); }
.tag-item.active .tag-prompt-count { background: rgba(255,255,255,0.2); color: white; }
.sidebar-empty { font-size: 0.875rem; color: var(--color-text-tertiary); padding: var(--spacing-sm); }

/* Context Menu */
.context-menu { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); box-shadow: var(--shadow-lg); min-width: 140px; overflow: hidden; z-index: 1001; }
.context-menu-item { display: block; width: 100%; padding: var(--spacing-sm) var(--spacing-md); background: none; border: none; text-align: left; font-size: 0.875rem; cursor: pointer; color: var(--color-text-primary); }
.context-menu-item:hover { background: var(--color-background); }
.context-menu-danger { color: #dc2626; }
.context-menu hr { border: none; border-top: 1px solid var(--color-border); margin: var(--spacing-xs) 0; }

/* Loading State */
.loading-state { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: var(--spacing-xl); color: var(--color-text-secondary); }

/* Tag Category Groups (in modals) */
.tag-category-group { margin-bottom: var(--spacing-md); }
.tag-category-label { font-size: 0.75rem; font-weight: 600; color: var(--color-text-tertiary); text-transform: uppercase; margin-bottom: var(--spacing-xs); }
.text-muted { color: var(--color-text-tertiary); font-size: 0.875rem; }

/* Version History */
.versions-list { display: flex; flex-direction: column; gap: var(--spacing-md); }
.version-item { padding: var(--spacing-md); background: var(--color-background); border-radius: var(--radius-md); }
.version-header { display: flex; justify-content: space-between; margin-bottom: var(--spacing-sm); }
.version-number { font-weight: 600; color: var(--color-primary); }
.version-date { font-size: 0.75rem; color: var(--color-text-tertiary); }
.version-content p { margin: var(--spacing-xs) 0 0 0; font-size: 0.875rem; color: var(--color-text-secondary); }

/* Manage Categories Modal */
.manage-categories { display: flex; flex-direction: column; gap: var(--spacing-md); }
.manage-header { display: flex; gap: var(--spacing-sm); margin-bottom: var(--spacing-sm); }
.manage-category-item { background: var(--color-background); border-radius: var(--radius-md); margin-bottom: var(--spacing-sm); overflow: hidden; }
.manage-category-header { display: flex; align-items: center; gap: var(--spacing-sm); padding: var(--spacing-sm) var(--spacing-md); }
.manage-category-header .category-icon { font-size: 1.125rem; }
.manage-category-header .category-name { flex: 1; font-weight: 500; }
.manage-category-header .category-tag-count { font-size: 0.75rem; color: var(--color-text-tertiary); }
.manage-category-actions { display: flex; gap: var(--spacing-xs); }
.manage-tags-list { padding: 0 var(--spacing-md) var(--spacing-sm) calc(var(--spacing-md) + 1.5rem); }
.manage-tag-item { display: flex; align-items: center; justify-content: space-between; padding: var(--spacing-xs) 0; font-size: 0.875rem; color: var(--color-text-secondary); }
.manage-tag-actions { display: flex; gap: var(--spacing-xs); opacity: 0; transition: opacity 0.2s; }
.manage-tag-item:hover .manage-tag-actions { opacity: 1; }
.btn-xs { padding: 2px 6px; font-size: 0.75rem; }

/* Import Library Modal */
.import-library { display: flex; flex-direction: column; gap: var(--spacing-md); }
.library-list { display: flex; flex-direction: column; gap: var(--spacing-sm); max-height: 400px; overflow-y: auto; }
.library-item { background: var(--color-background); border-radius: var(--radius-md); padding: var(--spacing-sm) var(--spacing-md); }
.library-checkbox { display: flex; align-items: flex-start; gap: var(--spacing-sm); cursor: pointer; }
.library-checkbox input { margin-top: 4px; }
.library-info { flex: 1; }
.library-info strong { display: block; margin-bottom: 2px; }
.library-tag-count { font-size: 0.75rem; color: var(--color-text-tertiary); margin-left: var(--spacing-sm); }
.library-desc { margin: var(--spacing-xs) 0 0 0; font-size: 0.8125rem; color: var(--color-text-secondary); }