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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

header {
    margin-bottom: 60px;
    padding: 20px 0;
    border-bottom: 1px solid #e0e0e0;
    text-align: center;
}

.site-title {
    font-size: 2.5rem;
    font-weight: 600;
    text-decoration: none;
    color: #333;
    display: block;
    margin-bottom: 20px;
}

nav {
    display: flex;
    justify-content: center;
}

.nav-menu {
    list-style: none;
    display: flex;
    gap: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: #ff85d5;
    transition: color 0.2s;
}

.nav-menu a:hover {
    color: #ff5fc8;
}

.nav-menu a.active {
    color: #333;
}

main {
    min-height: calc(100vh - 250px);
}

h1 {
    font-size: 2rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

h2 {
    font-size: 1.5rem;
    margin-top: 30px;
    margin-bottom: 15px;
}

h3 {
    font-size: 1.2rem;
    margin-top: 25px;
    margin-bottom: 10px;
}

p {
    margin-bottom: 15px;
}

.content-page {
    max-width: 650px;
}

/* Writing list */
.writing-list {
    max-width: 650px;
}

.post-list {
    list-style: none;
    margin-top: 40px;
}

.post-item {
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid #e0e0e0;
}

.post-item:last-child {
    border-bottom: none;
}

.post-item a {
    text-decoration: none;
    color: inherit;
    display: block;
}

.post-item h2 {
    margin-top: 0;
    margin-bottom: 8px;
    font-size: 1.4rem;
    transition: color 0.2s;
}

.post-item a:hover h2 {
    color: #0066cc;
}

.post-item time {
    display: block;
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 10px;
}

.post-item p {
    color: #666;
    margin-top: 10px;
}

/* Blog post */
.blog-post {
    max-width: 650px;
}

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

.post-header h1 {
    margin-bottom: 10px;
}

.post-header time {
    color: #666;
    font-size: 0.9rem;
}

.post-content {
    margin-bottom: 60px;
}

.post-footer {
    padding-top: 30px;
    border-top: 1px solid #e0e0e0;
}

.back-link {
    text-decoration: none;
    color: #0066cc;
}

.back-link:hover {
    text-decoration: underline;
}

footer {
    margin-top: 80px;
    padding: 30px 0;
    border-top: 1px solid #e0e0e0;
    color: #666;
    font-size: 0.9rem;
    text-align: center;
}

/* Responsive */
@media (max-width: 600px) {
    body {
        padding: 15px;
    }

    header {
        margin-bottom: 40px;
    }

    .nav-menu {
        gap: 20px;
    }

    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.3rem;
    }
}