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

body {
    background: #0d1117;
    color: #e6edf3;
    font-family: Inter, Arial, sans-serif;
    line-height: 1.8;
}

.navbar {
    height: 70px;
    background: #11161d;
    border-bottom: 1px solid #232b36;

    display: flex;
    align-items: center;
    justify-content: space-between;

    padding: 0 40px;
}

.logo {
    font-size: 24px;
    font-weight: 700;
}

.navbar nav {
    display: flex;
    gap: 30px;
}

.navbar a {
    color: #c9d1d9;
    text-decoration: none;
}

.navbar a:hover {
    color: #58a6ff;
}

#themeBtn {
    background: #1c2128;
    border: none;
    color: white;
    padding: 10px 15px;
    cursor: pointer;
    border-radius: 8px;
}

.container {
    max-width: 1400px;
    margin: 40px auto;

    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 30px;

    padding: 0 20px;
}

.post {
    background: #161b22;
    border: 1px solid #232b36;
    border-radius: 12px;

    padding: 40px;
}

.category {
    color: #58a6ff;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 20px;
}

h1 {
    font-size: 42px;
    margin-bottom: 15px;
}

h2 {
    margin-top: 40px;
    margin-bottom: 15px;
    font-size: 28px;
}

.meta {
    color: #8b949e;
    margin-bottom: 30px;
}

p {
    margin-bottom: 20px;
}

.code-block {
    position: relative;
    margin: 25px 0;
}

.code-block pre {
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: 10px;

    padding: 20px;
    overflow-x: auto;
}

.code-block code {
    font-family: Consolas, monospace;
    font-size: 15px;
}

.copy-btn {
    position: absolute;
    top: 10px;
    right: 10px;

    background: #238636;
    color: white;

    border: none;
    border-radius: 6px;

    padding: 8px 12px;
    cursor: pointer;
}

.copy-btn:hover {
    opacity: 0.9;
}

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

.widget {
    background: #161b22;
    border: 1px solid #232b36;
    border-radius: 12px;
    padding: 25px;
}

.widget h3 {
    margin-bottom: 15px;
}

.widget a {
    display: block;
    color: #c9d1d9;
    text-decoration: none;
    margin-bottom: 10px;
}

.widget a:hover {
    color: #58a6ff;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tags span {
    background: #21262d;
    padding: 6px 12px;
    border-radius: 20px;
}