body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    max-width: 800px;
    margin: 0 auto;
    padding: 0;
    line-height: 1.6;
}

/* Topbar navigation */
.topbar {
    background-color: #2c3e50;
    padding: 0;
    margin: 0 0 20px 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.topbar-content {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    padding: 0 20px;
}

.topbar-title {
    color: white;
    font-size: 1.2em;
    font-weight: 600;
    margin: 0;
    padding: 15px 0;
    margin-right: 30px;
}

.topbar-nav {
    display: flex;
    gap: 0;
    list-style: none;
    margin: 0;
    padding: 0;
}

.topbar-nav li {
    margin: 0;
}

.topbar-nav a {
    display: block;
    color: #ecf0f1;
    padding: 15px 20px;
    text-decoration: none;
    transition: background-color 0.2s;
}

.topbar-nav a:hover {
    background-color: #34495e;
    text-decoration: none;
}

.topbar-nav a.active {
    background-color: #34495e;
    font-weight: 600;
}

.main-content {
    padding: 0 20px 20px 20px;
}
.release {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}
.release-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}
.version {
    font-size: 1.4em;
    font-weight: bold;
    color: #333;
}
.date {
    color: #666;
}
.changes {
    margin-top: 10px;
}
.download {
    display: inline-block;
    margin-top: 15px;
    padding: 8px 16px;
    background-color: #2c3e50;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 500;
}
.download:hover {
    background-color: #34495e;
}
.features-selector {
    background-color: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 20px;
    margin: 20px 0;
}
.feature-checkbox {
    display: flex;
    align-items: center;
    margin: 10px 0;
}
.feature-checkbox input[type="checkbox"] {
    margin-right: 10px;
    width: 18px;
    height: 18px;
}
.feature-checkbox label {
    cursor: pointer;
    font-weight: 500;
}
.optional-step {
    background-color: #fff9e6;
    border-left: 4px solid #ffc107;
    padding: 10px 15px;
    margin: 10px 0;
}
.feature-badge {
    display: inline-block;
    background-color: #ffc107;
    color: #000;
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 0.85em;
    font-weight: bold;
    margin-left: 8px;
}

/* Link styles */
a {
    color: #4a86e8;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.nav-link {
    display: inline-block;
    margin: 10px 0;
    padding: 10px 20px;
    background-color: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 4px;
    color: #333;
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.2s, border-color 0.2s;
}

.nav-link:hover {
    background-color: #e8e8e8;
    border-color: #ccc;
    text-decoration: none;
}

.back-link {
    display: inline-block;
    margin-top: 20px;
    color: #4a86e8;
    text-decoration: none;
    font-weight: 500;
}

.back-link:hover {
    color: #3a76d8;
    text-decoration: underline;
}

.back-link::before {
    content: "← ";
}

/* List styles */
ol {
    padding-left: 40px;
}

ol ol {
    padding-left: 40px;
    margin-top: 10px;
    margin-bottom: 10px;
}

/* Tab bar styles */
.tab-bar {
    display: flex;
    gap: 0;
    border-bottom: 2px solid #ddd;
    margin: 20px 0 30px 0;
}

.tab-button {
    padding: 12px 24px;
    background-color: #f5f5f5;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 1em;
    font-weight: 500;
    color: #666;
    transition: all 0.2s;
}

.tab-button:hover {
    background-color: #e8e8e8;
    color: #333;
}

.tab-button.active {
    background-color: white;
    color: #2c3e50;
    border-bottom-color: #2c3e50;
    font-weight: 600;
}