body {
    max-width: 800px;
    margin: 40px auto;
    padding: 0 20px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

header {
    border: 1px solid #efefef;
    padding: 20px;
    margin-bottom: 40px;
    border-radius: 10px;
    text-align: center;
}

img {
    max-width: 100%;
}

hr {
	border: 1px solid #efefef;
}

h1 {
    margin: 0;
}

.header-logo {
    vertical-align: middle;
}

.blog-description {
    margin: 10px 0 0 0;
    color: #666;
    font-size: 0.9em;
}

.main-nav {
    margin-top: 15px;
    font-weight: bold;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.nav-item {
    padding: 8px 15px;
    border: 1px solid #efefef;
    border-radius: 10px;
    color: #333;
    text-decoration: none;
    transition: all 0.2s ease;
}

.nav-item:hover {
    background-color: #f5f5f5;
    border-color: #0066cc;
    color: #0066cc;
}

/* Dropdown (one level, CSS-only, opens on hover / keyboard focus) */
.nav-dropdown {
    position: relative;
    display: inline-flex;
}

/* Match the plain .nav-item box exactly (it would otherwise be an inline
   element here) and vertically center the label with its caret. */
.nav-dropdown-toggle {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
}

.nav-caret {
    font-size: 0.75em;
}

.nav-submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 6px;
    min-width: 160px;
    padding: 6px;
    background: #fff;
    border: 1px solid #efefef;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    z-index: 100;
}

/* Invisible bridge across the gap so hover isn't lost between toggle and menu */
.nav-submenu::before {
    content: "";
    position: absolute;
    top: -6px;
    left: 0;
    right: 0;
    height: 6px;
}

.nav-dropdown:hover > .nav-submenu,
.nav-dropdown:focus-within > .nav-submenu {
    display: block;
}

.nav-submenu .nav-item {
    display: block;
    border: none;
    border-radius: 6px;
    text-align: left;
    white-space: nowrap;
}

a {
    color: #0066cc;
    text-decoration: none;
    font-size: 0.95em;
}


.post {
    padding: 15px;
    margin-top: 10px;
    border: 1px solid #efefef;
    border-radius: 10px;
}


.post-meta {
    color: #666;
    font-size: 0.9em;
    margin-bottom: 10px;
}

.post-title {
    margin: 10px 0;
}

.post-title a {
    color: #333;
    text-decoration: none;
}

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

footer {
    margin-top: 60px;
    padding-top: 20px;
    border-top: 1px solid #efefef;
    text-align: center;
    color: #666;
    font-size: 0.9em;
}

footer p {
    font-size: 0.7rem;
}

pre {
    background-color: #f1f1f1;
    padding: 10px;
    border: 1px solid #efefef;
    white-space: pre-wrap;
}