:root {
    --background-color: #f8f9fa;
    --text-color: #212529;
    --menu-background-color: #343a40;
    --menu-text-color: white;
    --panel-background-color: #e9ecef;
    --panel-border-color: #ced4da;
    --input-background-color: white;
    --button-background-color: #f8f9fa;
    --button-hover-background-color: #e2e6ea;
    --preview-background-color: white;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

[data-theme="dark"] {
    --background-color: #212529;
    --text-color: #f8f9fa;
    --menu-background-color: #212529;
    --menu-text-color: white;
    --panel-background-color: #343a40;
    --panel-border-color: #495057;
    --input-background-color: #495057;
    --button-background-color: #343a40;
    --button-hover-background-color: #495057;
    --preview-background-color: #343a40;
}

body {
    font-family: var(--font-family);
    margin: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.menu-bar {
    display: flex;
    justify-content: space-between;
    background-color: var(--menu-background-color);
    color: var(--menu-text-color);
    padding: 0.5rem 1rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    z-index: 1000;
}

.menu-item {
    position: relative;
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-weight: 500;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: var(--button-background-color);
    min-width: 200px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
    border-radius: 4px;
    overflow: hidden;
}

.dropdown-content a, .menu-label {
    color: var(--text-color);
    padding: 12px 16px;
    text-decoration: none;
    display: block;
}

.dropdown-content a:hover, .menu-label:hover {
    background-color: var(--button-hover-background-color);
}

.menu-item:hover .dropdown-content {
    display: block;
}

.theme-switcher {
    padding: 0.5rem;
}

.editor-container {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.file-list-panel {
    width: 250px;
    padding: 1rem;
    background-color: var(--panel-background-color);
    border-right: 1px solid var(--panel-border-color);
    display: flex;
    flex-direction: column;
}

.file-list-panel h2 {
    margin-top: 0;
    font-size: 1.2rem;
    font-weight: 600;
    border-bottom: 1px solid var(--panel-border-color);
    padding-bottom: 0.5rem;
}

#file-list {
    list-style-type: none;
    padding: 0;
    margin: 1rem 0;
    overflow-y: auto;
    flex: 1;
}

#file-list li {
    padding: 0.75rem;
    cursor: pointer;
    border-radius: 4px;
    margin-bottom: 0.5rem;
}

#file-list li:hover {
    background-color: var(--button-hover-background-color);
}

.main-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 1rem;
}

#file-name {
    padding: 0.75rem;
    margin-bottom: 1rem;
    font-size: 1rem;
    background-color: var(--input-background-color);
    color: var(--text-color);
    border: 1px solid var(--panel-border-color);
    border-radius: 4px;
}

.editor {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.EasyMDEContainer {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.CodeMirror {
    flex: 1;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1001;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.5);
}

.modal-content {
    background-color: var(--background-color);
    margin: 10% auto;
    padding: 2rem;
    border: 1px solid #888;
    width: 60%;
    max-width: 600px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.close-button {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close-button:hover,
.close-button:focus {
    color: var(--text-color);
    text-decoration: none;
    cursor: pointer;
}

button {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    cursor: pointer;
    background-color: var(--button-background-color);
    color: var(--text-color);
    border: 1px solid var(--panel-border-color);
    border-radius: 4px;
    transition: background-color 0.2s;
}

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