style.css

@font-face {
    font-family: 'DepartureMono';
    src: url('DepartureMono-Regular.otf') format('opentype');
}

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

body {
    font-family: 'DepartureMono', monospace;
    font-size: 16px;
    line-height: 1.5;
    color: #282727;
    background-color: #EDEAE6;
}

::selection {
    background-color: #F1491D;
    color: #EDEAE6;
}

.app-container {
    display: flex;
    height: 100vh;
    width: 80%;
    margin: 0 auto;
}

.sidebar {
    width: 250px;
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.sidebar h1 {
    font-size: 24px;
    margin-bottom: 20px;
}

.counter {
    font-size: 14px;
    color: #666;
    margin-top: 20px;
}

.counter span {
    display: block;
    margin-bottom: 5px;
}

.file-actions {
    margin-top: 10px;
}

.file-actions a {
    color: #666;
    text-decoration: underline;
    margin-right: 10px;
    cursor: pointer;
}

.file-actions a:hover {
    color: #282727;
}

#header-list {
    list-style-type: none;
    flex-grow: 1;
    overflow-y: auto;
}

#header-list li {
    cursor: pointer;
    margin-bottom: 10px;
    color: #666;
}

#header-list li:hover {
    color: #282727;
}

.main-content {
    flex-grow: 1;
    padding: 20px;
}

#editor {
    width: 100%;
    height: 100%;
    border: none;
    outline: none;
    resize: none;
    font-family: 'DepartureMono', monospace;
    font-size: 16px;
    line-height: 1.5;
    background-color: transparent;
    color: #282727;
}

#editor::selection {
    background-color: #F1491D;
    color: #EDEAE6;
}