body {
    margin: 0;
    background: #ccc;
    font-family: sans-serif;
}

header {
    background: #ddd;
    padding: 10px 20px;
    display: flex;
    align-items: center;
}

header h1 {
    margin: 0;
    font-weight: normal;
}

nav {
    margin: 0 auto;
}

nav a {
    background: #999;
    color: #fff;
    padding: 8px 16px;
    text-decoration: none;
}

nav a.active {
    background: #555;
}

.layout {
    display: flex;
    gap: 20px;
    padding: 20px;
    align-items: flex-start;
}

aside {
    flex: 1;
    min-width: 0;
    background: #fff;
    padding: 20px;
}

main {
    flex: 3;
    min-width: 0;
    background: #fff;
    padding: 20px;
}

label {
    display: block;
    margin-bottom: 5px;
}

.upload {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.upload img {
    width: 120px;
    height: 70px;
    flex-shrink: 0;
    object-fit: cover;
    display: block;
}

.upload input[type="file"]::file-selector-button {
    background: #e0e0e0;
    border: none;
    border-radius: 20px;
    padding: 8px 20px;
    margin-right: 10px;
    font-family: inherit;
    cursor: pointer;
}

#image {
  color: transparent;
}

#image::file-selector-button {
  color: #000000;
}

.upload input[type="file"]::file-selector-button:hover {
    background: #d0d0d0;
}

.upload input[type="file"]::file-selector-button:active {
    background: #bdbdbd;
}

input, textarea, button {
    font-family: inherit;
    font-size: inherit;
}

aside input[type="text"] {
    width: 100%;
    box-sizing: border-box;
    background: #e0e0e0;
    border: none;
    padding: 10px;
    margin-bottom: 25px;
}

.hints {
    list-style: none;
    padding: 0;
}

.hints li {
    margin-bottom: 15px;
}

.hints li::before {
    content: "\2713";
    display: inline-block;
    width: 18px;
    height: 18px;
    line-height: 18px;
    text-align: center;
    background: #bbb;
    color: #fff;
    border-radius: 50%;
    margin-right: 8px;
    font-size: 12px;
}

.hints span {
    display: block;
    margin-left: 26px;
}

.preview-title {
    margin-top: 0;
    font-weight: bold;
}

main img {
    width: 100%;
    height: 55vh;
    object-fit: cover;
    display: block;
}

.date {
    color: #555;
}

.post-button {
    background: #555;
    color: #fff;
    border: none;
    border-radius: 20px;
    padding: 10px 25px;
    cursor: pointer;
}

.post-button:hover {
    background: #333;
}

.post-button:active {
    background: #000;
}

.title-input {
    width: 100%;
    box-sizing: border-box;
    border: none;
    padding: 0;
    margin: 15px 0 5px;
    font-size: 1.5em;
    font-weight: bold;
}

.body-input {
    width: 100%;
    box-sizing: border-box;
    border: none;
    padding: 0;
    margin-top: 15px;
    min-height: 200px;
    resize: vertical;
}

.hints li.done::before {
    background: #4caf50;
}

.preview-image {
    background: #ccc;
}