/* Knowledge Vault Pro - Main Styles */
:root {
    --kvp-primary: #4F46E5;
    --kvp-primary-hover: #4338CA;
    --kvp-bg: #FFFFFF;
    --kvp-bg-secondary: #F9FAFB;
    --kvp-border: #E5E7EB;
    --kvp-text: #111827;
    --kvp-text-secondary: #6B7280;
    --kvp-sidebar-bg: #F9FAFB;
    --kvp-hover: #F3F4F6;
    --kvp-success: #10B981;
    --kvp-danger: #EF4444;
    --kvp-warning: #F59E0B;
}

/* Main Container */
.kvp-vault {
    display: flex;
    height: 100vh;
    background: var(--kvp-bg);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    color: var(--kvp-text);
}

/* Sidebar */
.kvp-sidebar {
    width: 280px;
    background: var(--kvp-sidebar-bg);
    border-right: 1px solid var(--kvp-border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.kvp-sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--kvp-border);
}

.kvp-sidebar-header h2 {
    margin: 0 0 15px 0;
    font-size: 20px;
    font-weight: 600;
}

.kvp-actions {
    display: flex;
    gap: 8px;
}

/* Search Box */
.kvp-search-box {
    position: relative;
    padding: 15px 20px;
    border-bottom: 1px solid var(--kvp-border);
}

.kvp-search-box input {
    width: 100%;
    padding: 10px 35px 10px 10px;
    border: 1px solid var(--kvp-border);
    border-radius: 6px;
    font-size: 14px;
    background: var(--kvp-bg);
}

.kvp-search-box .dashicons {
    position: absolute;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--kvp-text-secondary);
}

/* Folders */
.kvp-folders {
    padding: 15px 20px;
    border-bottom: 1px solid var(--kvp-border);
}

.kvp-folder-item {
    padding: 8px 12px;
    margin-bottom: 4px;
    cursor: pointer;
    border-radius: 6px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background 0.2s;
}

.kvp-folder-item:hover {
    background: var(--kvp-hover);
}

.kvp-folder-item.kvp-folder-active {
    background: var(--kvp-primary);
    color: white;
}

/* Notes List */
.kvp-notes-list {
    flex: 1;
    overflow-y: auto;
    padding: 15px 20px;
}

.kvp-note-item {
    padding: 12px;
    margin-bottom: 8px;
    border: 1px solid var(--kvp-border);
    border-radius: 8px;
    cursor: pointer;
    background: var(--kvp-bg);
    transition: all 0.2s;
}

.kvp-note-item:hover {
    border-color: var(--kvp-primary);
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.1);
}

.kvp-note-item.kvp-note-active {
    border-color: var(--kvp-primary);
    background: #EEF2FF;
}

.kvp-note-item-title {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 4px;
    color: var(--kvp-text);
}

.kvp-note-item-meta {
    font-size: 12px;
    color: var(--kvp-text-secondary);
}

/* Sidebar Footer */
.kvp-sidebar-footer {
    padding: 15px 20px;
    border-top: 1px solid var(--kvp-border);
}

/* Main Editor Area */
.kvp-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.kvp-editor-header {
    padding: 20px 30px;
    border-bottom: 1px solid var(--kvp-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--kvp-bg);
}

.kvp-note-title {
    flex: 1;
    border: none;
    font-size: 24px;
    font-weight: 700;
    padding: 8px 0;
    background: transparent;
    outline: none;
    color: var(--kvp-text);
}

.kvp-editor-actions {
    display: flex;
    gap: 10px;
}

/* Toolbar */
.kvp-editor-toolbar {
    padding: 12px 30px;
    background: var(--kvp-bg-secondary);
    border-bottom: 1px solid var(--kvp-border);
    display: flex;
    align-items: center;
    gap: 4px;
}

.kvp-tool-btn {
    padding: 8px 12px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    color: var(--kvp-text-secondary);
    transition: all 0.2s;
}

.kvp-tool-btn:hover {
    background: var(--kvp-hover);
    color: var(--kvp-text);
}

.kvp-toolbar-divider {
    width: 1px;
    height: 24px;
    background: var(--kvp-border);
    margin: 0 8px;
}

/* Editor Container */
.kvp-editor-container {
    flex: 1;
    display: flex;
    overflow: hidden;
}

.kvp-editor-pane {
    flex: 1;
    position: relative;
}

.kvp-markdown-editor {
    width: 100%;
    height: 100%;
    padding: 30px;
    border: none;
    resize: none;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 15px;
    line-height: 1.7;
    background: var(--kvp-bg);
    color: var(--kvp-text);
    outline: none;
}

.kvp-preview-pane {
    flex: 1;
    border-left: 1px solid var(--kvp-border);
    overflow-y: auto;
}

.kvp-preview-content {
    padding: 30px;
    line-height: 1.7;
}

.kvp-preview-content h1,
.kvp-preview-content h2,
.kvp-preview-content h3 {
    margin-top: 24px;
    margin-bottom: 12px;
    font-weight: 600;
}

.kvp-preview-content code {
    background: var(--kvp-bg-secondary);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 14px;
}

.kvp-preview-content pre {
    background: var(--kvp-bg-secondary);
    padding: 16px;
    border-radius: 8px;
    overflow-x: auto;
}

/* Editor Footer */
.kvp-editor-footer {
    padding: 12px 30px;
    background: var(--kvp-bg-secondary);
    border-top: 1px solid var(--kvp-border);
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: var(--kvp-text-secondary);
}

/* Right Sidebar */
.kvp-right-sidebar {
    width: 280px;
    background: var(--kvp-sidebar-bg);
    border-left: 1px solid var(--kvp-border);
    overflow-y: auto;
    padding: 20px;
}

.kvp-right-sidebar-section {
    margin-bottom: 30px;
}

.kvp-right-sidebar-section h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--kvp-text);
}

.kvp-tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 10px;
}

.kvp-tag {
    background: var(--kvp-primary);
    color: white;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.kvp-tag-remove {
    cursor: pointer;
    opacity: 0.7;
}

.kvp-tag-remove:hover {
    opacity: 1;
}

.kvp-backlinks-list,
.kvp-linked-notes {
    font-size: 13px;
}

.kvp-backlink-item {
    padding: 8px 12px;
    margin-bottom: 6px;
    background: var(--kvp-bg);
    border: 1px solid var(--kvp-border);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

.kvp-backlink-item:hover {
    border-color: var(--kvp-primary);
}

.kvp-empty-state {
    color: var(--kvp-text-secondary);
    font-size: 13px;
    font-style: italic;
}

/* Buttons */
.kvp-btn {
    padding: 10px 18px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.kvp-btn-primary {
    background: var(--kvp-primary);
    color: white;
}

.kvp-btn-primary:hover {
    background: var(--kvp-primary-hover);
}

.kvp-btn-secondary {
    background: var(--kvp-bg);
    border: 1px solid var(--kvp-border);
    color: var(--kvp-text);
}

.kvp-btn-secondary:hover {
    background: var(--kvp-bg-secondary);
}

.kvp-btn-danger {
    background: var(--kvp-danger);
    color: white;
}

.kvp-btn-danger:hover {
    background: #DC2626;
}

.kvp-btn-text {
    background: transparent;
    border: none;
    color: var(--kvp-text-secondary);
    padding: 8px 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    text-align: left;
    border-radius: 6px;
    transition: all 0.2s;
}

.kvp-btn-text:hover {
    background: var(--kvp-hover);
    color: var(--kvp-text);
}

/* Modal */
.kvp-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

.kvp-modal-content {
    background: var(--kvp-bg);
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.kvp-modal-large {
    max-width: 1200px;
}

.kvp-modal-header {
    padding: 20px 30px;
    border-bottom: 1px solid var(--kvp-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.kvp-modal-header h2 {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
}

.kvp-modal-close {
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--kvp-text-secondary);
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
}

.kvp-modal-close:hover {
    background: var(--kvp-hover);
    color: var(--kvp-text);
}

.kvp-modal-body {
    padding: 30px;
    overflow-y: auto;
}

/* Loading State */
.kvp-loading {
    text-align: center;
    padding: 40px 20px;
    color: var(--kvp-text-secondary);
    font-size: 14px;
}

/* Responsive */
@media (max-width: 1024px) {
    .kvp-right-sidebar {
        display: none;
    }
}

@media (max-width: 768px) {
    .kvp-sidebar {
        width: 240px;
    }
    
    .kvp-editor-header {
        padding: 15px 20px;
    }
    
    .kvp-markdown-editor,
    .kvp-preview-content {
        padding: 20px;
    }
}