:root {
    --color-bg: #f6f7f9;
    --color-text: #1f2430;
    --color-accent: #2f6fed;
    --color-muted: #6b7280;
    --radius: 8px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.site-header {
    background: #fff;
    border-bottom: 1px solid #e5e7eb;
    padding: 0 1.5rem;
}

.site-header nav {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.75rem 0;
}

.brand {
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--color-accent);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

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

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

.site-main {
    flex: 1;
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

.page h1 {
    margin-top: 0;
}

.page-content {
    font-size: 1.05rem;
}

.site-footer {
    border-top: 1px solid #e5e7eb;
    background: #fff;
    padding: 1rem 1.5rem;
    text-align: center;
    color: var(--color-muted);
    font-size: 0.9rem;
}