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

:root {
    --bg-color: var(--vscode-editor-background, #1e1e1e);
    --text-color: var(--vscode-foreground, #cccccc);
    --border-color: var(--vscode-panel-border, #3c3c3c);
    --button-bg: var(--vscode-button-background, #0e639c);
    --button-fg: var(--vscode-button-foreground, #ffffff);
}

body {
    font-family: var(--vscode-font-family);
    background: var(--bg-color);
    color: var(--text-color);
    overflow: hidden;
}

#toolbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 48px;
    background: var(--vscode-titleBar-activeBackground);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 12px;
    z-index: 1000;
    gap: 12px;
}

.toolbar-left, .toolbar-center, .toolbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.toolbar-center {
    flex: 1;
    justify-content: center;
}

button {
    background: var(--button-bg);
    color: var(--button-fg);
    border: none;
    padding: 6px 12px;
    cursor: pointer;
    border-radius: 3px;
    font-size: 13px;
    font-family: inherit;
}

button:hover {
    opacity: 0.9;
}

button:active {
    opacity: 0.8;
}

#search-input {
    padding: 4px 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    color: var(--text-color);
    border-radius: 3px;
    font-size: 13px;
    width: 200px;
}

#container {
    position: fixed;
    top: 48px;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
}

#sidebar {
    width: 300px;
    background: var(--vscode-sideBar-background);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#sidebar-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    flex: 1;
    padding: 8px;
    background: transparent;
    color: var(--text-color);
    border: none;
    cursor: pointer;
    border-bottom: 2px solid transparent;
}

.tab-btn.active {
    background: var(--vscode-tab-activeBackground);
    border-bottom-color: var(--button-bg);
}

.tab-pane {
    display: none;
    padding: 16px;
    overflow-y: auto;
    flex: 1;
}

.tab-pane.active {
    display: block;
}

#viewer {
    flex: 1;
    overflow: auto;
    background: #2b2b2b;
    display: flex;
    justify-content: center;
    padding: 20px;
}

#pdf-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.page {
    background: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

canvas {
    display: block;
}

#zoom-level {
    padding: 0 8px;
    min-width: 50px;
    text-align: center;
}

#page-info {
    padding: 0 12px;
    min-width: 100px;
    text-align: center;
}