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

/* Light mode variables */
:root {
    --bg: #fff;
    --bg-alt: #f9f9f9;
    --text: #222;
    --text-muted: #555;
    --text-faint: #999;
    --border: #eee;
    --nav-bg: #fff;
    --toggle-bg: #ddd;
    --toggle-knob: #fff;
}

/* Dark mode variables */
body.dark {
    --bg: #121212;
    --bg-alt: #1e1e1e;
    --text: #e8e8e8;
    --text-muted: #aaa;
    --text-faint: #666;
    --border: #333;
    --nav-bg: #1a1a1a;
    --toggle-bg: #555;
    --toggle-knob: #fff;
}

body {
    font-family: system-ui, -apple-system, sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    transition: background 0.3s, color 0.3s;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 4rem;
    background: var(--nav-bg);
}

nav .nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

nav .nav-links a {
    text-decoration: none;
    color: var(--text);
    font-size: 0.95rem;
}

nav .nav-links a:hover { 
    color: var(--text-muted); 
}

.hero {
    padding: 8rem 4rem;
    background: var(--bg-alt);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 600px;
}

.section {
    padding: 5rem 4rem;
}

.section h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.section p {
    color: var(--text-muted);
    max-width: 700px;
}

footer {
    padding: 2rem 4rem;
    border-top: 1px solid var(--border);
    color: var(--text-faint);
    font-size: 0.85rem;
}

/* Dark mode toggle */
.dark-toggle {
    background: var(--text);
    color: var(--bg);
    border: none;
    border-radius: 6px;
    padding: 0.4rem 1rem;
    cursor: pointer;
    font-size: 0.85rem;
    font-family: system-ui, sans-serif;
    font-weight: 600;
    transition: background 0.3s, color 0.3s;
    flex-shrink: 0;
}

.dark-toggle:hover {
    opacity: 0.8;
}

/* Blog module */
.blog-post-card { 
    margin-bottom: 2.5rem; 
    padding-bottom: 2.5rem; 
    border-bottom: 
    1px solid var(--border); 
}

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

.blog-post-image { 
    width: 100%; 
    max-height: 300px; 
    object-fit: cover; 
    border-radius: 8px; 
    margin-bottom: 1rem; 
}

.blog-post-meta { 
    font-size: 0.85rem; 
    color: var(--text-muted); 
    margin-bottom: 0.5rem; 
}

.blog-post-title { 
    font-size: 1.5rem; 
    margin-bottom: 0.5rem; 
}

.blog-post-title a { 
    text-decoration: none; 
    color: var(--text); 
}

.blog-post-title a:hover { 
    text-decoration: underline; 
}

.blog-post-excerpt { 
    color: var(--text-muted); 
    margin-bottom: 0.75rem; 
}

.blog-read-more { 
    font-size: 0.9rem; 
    color: var(--text); 
    font-weight: 600; 
    text-decoration: none; 
}

.blog-read-more:hover { 
    text-decoration: underline; 
}

.blog-tag { 
    display: inline-block; 
    background: var(--bg-alt); 
    border-radius: 20px; 
    padding: 0.1rem 0.5rem; 
    font-size: 0.75rem; 
    margin-left: 0.25rem; 
}