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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.7;
    color: #2d2d2d;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
    min-height: 100vh;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 30px;
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 5px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.tagline {
    opacity: 0.9;
    font-style: italic;
    margin-bottom: 15px;
}

nav {
    margin-top: 15px;
}

nav a {
    color: white;
    text-decoration: none;
    margin-right: 20px;
    font-weight: bold;
    opacity: 0.9;
    transition: opacity 0.2s;
}

nav a:hover {
    opacity: 1;
    text-decoration: underline;
}

main {
    min-height: 60vh;
}

.intro {
    background-color: white;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    border-left: 4px solid #667eea;
}

.posts h2 {
    color: #667eea;
    margin-bottom: 20px;
    font-size: 1.5em;
}

.post-list {
    list-style: none;
}

.post-list li {
    background: white;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    transition: transform 0.2s, box-shadow 0.2s;
}

.post-list li:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.12);
}

.post-list a {
    color: #667eea;
    text-decoration: none;
    font-size: 1.15em;
    font-weight: bold;
    display: block;
    margin-bottom: 5px;
}

.post-list a:hover {
    color: #764ba2;
}

.post-list .date {
    color: #888;
    font-size: 0.9em;
}

article {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    margin-bottom: 30px;
}

article h1 {
    color: #667eea;
    font-size: 1.9em;
    margin-bottom: 10px;
    line-height: 1.3;
}

article .meta {
    color: #888;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

article p {
    margin-bottom: 15px;
    text-align: justify;
}

article h2 {
    color: #764ba2;
    margin-top: 25px;
    margin-bottom: 15px;
}

article ul, article ol {
    margin-left: 30px;
    margin-bottom: 15px;
}

article li {
    margin-bottom: 8px;
}

.back-link {
    display: inline-block;
    margin-bottom: 20px;
    color: #667eea;
    text-decoration: none;
    font-weight: bold;
}

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

footer {
    margin-top: 50px;
    padding: 20px;
    background: white;
    border-radius: 12px;
    text-align: center;
    color: #888;
    font-size: 0.9em;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.about-content {
    background-color: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.about-content h2 {
    color: #667eea;
    margin-top: 20px;
    margin-bottom: 10px;
}

.about-content h2:first-child {
    margin-top: 0;
}

.about-content p {
    margin-bottom: 15px;
}

.about-content ul {
    margin-left: 25px;
    margin-bottom: 15px;
}

.about-content li {
    margin-bottom: 8px;
}