* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--window-bg);
    color: var(--text-color);
    height: 100vh;
    overflow: hidden;
}

/* Navigation panel (sidebar accordion) */
.nav-section {
    margin-bottom: 2px;
}

.nav-section-header {
    display: flex;
    align-items: center;
    gap: 6px;
    width: 100%;
    padding: 6px 8px;
    background: var(--menu-bg);
    border: 1px solid var(--border-color);
    cursor: pointer;
    font-size: 13px;
    font-weight: bold;
    text-align: left;
    user-select: none;
}

.nav-section-header:hover {
    background: var(--accent-color);
    color: white;
}

.nav-icon {
    font-size: 10px;
    width: 12px;
}

.nav-section-body {
    border: 1px solid var(--border-color);
    border-top: none;
    background: var(--card-bg);
}

.nav-item {
    display: block;
    width: 100%;
    padding: 6px 16px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 13px;
    text-align: left;
    color: var(--text-color);
}

.nav-item:hover {
    background: var(--accent-color);
    color: white;
}

.nav-separator {
    height: 1px;
    background: var(--border-color);
    margin: 4px 8px;
}

.nav-hint {
    display: block;
    padding: 6px 16px;
    font-size: 12px;
    color: var(--border-color);
}

.nav-item-toggle {
    display: flex;
    align-items: center;
    gap: 4px;
    font-weight: bold;
}

.nav-item-toggle .nav-icon {
    font-size: 10px;
    width: 12px;
}

.nav-sublist {
    padding-left: 8px;
}

.nav-item-sub {
    padding: 4px 16px;
    font-size: 12px;
}

/* Status bar */
.status-bar {
    background: var(--status-bar-bg);
    border-top: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 3px 8px;
    font-size: 12px;
    min-height: 28px;
    gap: 8px;
}

.status-bar .status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.status-bar .status-dot.connected {
    background: #00cc00;
}

.status-bar .status-dot.disconnected {
    background: #cc0000;
}

.status-bar .status-text {
    flex: 1;
}

.status-bar progress {
    width: 80px;
    height: 12px;
}

/* Main content area */
.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 250px;
    min-width: 150px;
    border-right: 2px solid var(--border-color);
    padding: 4px;
    overflow-y: auto;
    background: var(--window-bg);
}

/* Detail panel */
.detail-panel {
    flex: 1;
    padding: 12px;
    overflow-y: auto;
}

.detail-panel .tab-bar {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 12px;
}

.detail-panel .tab-bar .tab {
    padding: 8px 16px;
    cursor: pointer;
    border: 1px solid transparent;
    margin-bottom: -2px;
}

.detail-panel .tab-bar .tab.active {
    border: 1px solid var(--border-color);
    border-bottom-color: var(--window-bg);
    background: var(--card-bg);
}

.detail-panel .tab-content {
    padding: 8px;
}

/* Cards for RAG facts */
.fact-card {
    background: var(--card-bg);
    border-left: 3px solid var(--accent-color);
    padding: 12px;
    margin-bottom: 8px;
    border-radius: 2px;
    font-size: 14px;
    line-height: 1.5;
}

/* Editor */
.editor-container {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.editor-container textarea {
    flex: 1;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 14pt;
    padding: 20px;
    border: none;
    outline: none;
    resize: none;
    background: var(--editor-bg);
    color: var(--text-color);
    line-height: 1.6;
}

.editor-container .editor-toolbar {
    display: flex;
    justify-content: flex-end;
    padding: 8px 16px;
    gap: 8px;
    border-top: 1px solid var(--border-color);
    background: var(--menu-bg);
}

/* Buttons */
button {
    padding: 8px 16px;
    cursor: pointer;
    border: 1px solid var(--border-color);
    background: var(--menu-bg);
    color: var(--text-color);
    font-size: 13px;
}

button:hover {
    background: var(--accent-color);
    color: white;
}

button.primary {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

/* Forms */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-weight: bold;
    margin-bottom: 4px;
    font-size: 13px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid var(--border-color);
    background: var(--editor-bg);
    color: var(--text-color);
    font-size: 13px;
}

.form-actions {
    display: flex;
    gap: 8px;
    margin-top: 16px;
}

/* Project tree */
.tree-node {
    padding: 4px 8px;
    cursor: pointer;
    font-size: 13px;
}

.tree-node:hover {
    background: var(--accent-color);
    color: white;
}

.tree-node .children {
    padding-left: 20px;
}

/* Grid splitter simulation */
.grid-splitter {
    width: 5px;
    cursor: col-resize;
    background: transparent;
}

/* Progress */
.progress-bar {
    width: 100%;
    height: 20px;
    background: var(--border-color);
    border-radius: 2px;
    overflow: hidden;
}

.progress-bar .progress-fill {
    height: 100%;
    background: var(--accent-color);
    transition: width 0.3s;
}

/* Model list */
.model-list {
    display: grid;
    gap: 8px;
}

.model-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 12px;
    border-radius: 4px;
}

.model-card .model-name {
    font-weight: bold;
    font-size: 14px;
}

.model-card .model-details {
    font-size: 12px;
    color: var(--border-color);
    margin-top: 4px;
}

/* Settings page */
.settings-page {
    max-width: 960px;
}

.settings-layout {
    display: flex;
    gap: 16px;
}

.settings-layout-left {
    flex: 1;
    min-width: 0;
}

.settings-layout-right {
    flex: 1;
    min-width: 0;
}

.settings-layout-right .form-group textarea {
    min-height: 120px;
    font-family: monospace;
    font-size: 12px;
    resize: vertical;
}

.settings-actions {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-top: 16px;
}

.settings-section {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 16px;
    margin-bottom: 12px;
}

.settings-section-title {
    font-size: 14px;
    font-weight: bold;
    margin-bottom: 12px;
    color: var(--accent-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 6px;
}

.form-hint {
    font-size: 11px;
    color: var(--border-color);
    margin-top: 4px;
}

.settings-status {
    margin-top: 16px;
    padding: 10px;
    background: var(--card-bg);
    border: 1px solid var(--accent-color);
    font-size: 13px;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--window-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-color);
}