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

:root {
    --color-primary: #2563eb;
    --color-text: #1e293b;
    --color-muted: #64748b;
    --color-bg: #f8fafc;
    --radius: 8px;
}

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
.site-header {
    background: #fff;
    border-bottom: 1px solid #e2e8f0;
    padding: 1rem 0;
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo { font-size: 1.5rem; font-weight: 700; color: var(--color-primary); }

nav a {
    color: var(--color-text);
    text-decoration: none;
    margin-left: 1.5rem;
    font-weight: 500;
}

nav a:hover { color: var(--color-primary); }

/* Hero */
.hero {
    padding: 5rem 0;
    text-align: center;
}

.hero h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    color: var(--color-muted);
}

/* Footer */
.site-footer {
    border-top: 1px solid #e2e8f0;
    padding: 1.5rem 0;
    text-align: center;
    color: var(--color-muted);
    font-size: 0.9rem;
    margin-top: 4rem;
}