:root {
    --color-bg: #0f172a;
    --color-surface: #1e293b;
    --color-text: #e2e8f0;
    --color-muted: #94a3b8;
    --color-accent: #38bdf8;
    --container-width: 860px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.25rem;
}

.site-header {
    background: var(--color-surface);
    border-bottom: 1px solid #334155;
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.logo {
    color: var(--color-text);
    font-weight: 700;
    text-decoration: none;
    font-size: 1.1rem;
}

.site-header nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    margin: 0;
    padding: 0;
}

.site-header nav a {
    color: var(--color-muted);
    text-decoration: none;
}

.site-header nav a:hover,
.site-header nav a.active {
    color: var(--color-accent);
}

main.container {
    padding-top: 3rem;
    padding-bottom: 3rem;
    min-height: 60vh;
}

.hero {
    text-align: center;
    padding: 2rem 0 3rem;
}

.hero h1 {
    font-size: 2.25rem;
    margin-bottom: 0.5rem;
}

.hero .tagline {
    color: var(--color-accent);
    font-size: 1.1rem;
}

.content h1, .content h2 {
    border-bottom: 1px solid #334155;
    padding-bottom: 0.5rem;
}

.skills {
    padding-left: 1.25rem;
}

.site-footer {
    background: var(--color-surface);
    border-top: 1px solid #334155;
    text-align: center;
    padding: 1.25rem 0;
    color: var(--color-muted);
    font-size: 0.9rem;
}