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

body {
    font-family: Arial, sans-serif;
    background: #1a1a1a;
    color: #ffffff;
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.header {
    background: #222;
    padding: 20px 0;
    border-bottom: 1px solid #333;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 20px;
    font-weight: bold;
    color: #fff;
}

.nav {
    display: flex;
    gap: 20px;
}

.nav-link {
    color: #aaa;
    text-decoration: none;
}

.nav-link:hover,
.nav-link.active {
    color: #fff;
}

.main {
    padding: 40px 0;
    min-height: calc(100vh - 200px);
}

.page-header {
    margin-bottom: 40px;
}

.page-title {
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 10px;
}

.page-subtitle {
    font-size: 16px;
    color: #aaa;
}

.blog-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.blog-card {
    background: #222;
    border: 1px solid #333;
    padding: 20px;
    cursor: pointer;
}

.blog-card:hover {
    background: #2a2a2a;
}

.blog-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.blog-number {
    font-size: 12px;
    color: #888;
}

.blog-date-small {
    font-size: 12px;
    color: #888;
}

.blog-card-title {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 10px;
}

.read-more {
    font-size: 14px;
    color: #888;
}

.post-container {
    max-width: 800px;
    margin: 0 auto;
}

.back-button {
    display: inline-block;
    color: #aaa;
    text-decoration: none;
    margin-bottom: 30px;
}

.back-button:hover {
    color: #fff;
}

.post-header {
    margin-bottom: 30px;
}

.post-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.post-number {
    font-size: 14px;
    color: #888;
    flex-shrink: 0;
}

.post-title {
    font-size: 36px;
    font-weight: bold;
    text-align: center;
    flex-grow: 1;
}

.post-date {
    font-size: 14px;
    color: #888;
    flex-shrink: 0;
}

.post-content {
    background: #222;
    border: 1px solid #333;
    padding: 30px;
}

.post-content p {
    font-size: 16px;
    color: #ccc;
}

.post-image {
    width: 100%;
    max-width: 100%;
    margin-bottom: 20px;
    border: 1px solid #333;
}

.footer {
    background: #222;
    border-top: 1px solid #333;
    padding: 20px 0;
    margin-top: 40px;
}

.footer-text {
    text-align: center;
    color: #888;
    font-size: 14px;
}