/* Minimal base; full styling will follow in later steps */
:root {
    --text: #111;
    --muted: #666;
    --bg: #fff;
    --border: #e5e5e5;
    --accent: #111;
    --maxw: 960px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Inter, Arial, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
}

.skip-link {
    position: absolute;
    left: -9999px;
}
.skip-link:focus {
    left: 16px;
    top: 16px;
    background: #fff;
    color: #000;
    border: 2px solid #000;
    padding: 8px 12px;
}

.container {
    max-width: var(--maxw);
    padding: 0 20px;
    margin: 0 auto;
}

.site-header {
    border-bottom: 1px solid var(--border);
    background: #fff;
}
.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
}
.brand { font-weight: 600; }
.site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 16px; }
.site-nav a { color: var(--text); text-decoration: none; }
.site-nav a:focus, .site-nav a:hover { text-decoration: underline; }

.hero { padding: 72px 0; }
.hero h1 { margin: 0 0 8px; line-height: 1.2; font-size: clamp(28px, 4vw, 44px); }
.hero p { margin: 0 0 16px; color: var(--muted); }
.button {
    display: inline-block;
    padding: 10px 14px;
    border: 1px solid var(--text);
    color: #fff;
    background: var(--accent);
    text-decoration: none;
    border-radius: 6px;
}
.button:focus { outline: 2px solid #000; outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
    * { transition: none !important; animation: none !important; }
}

.section ul { padding-left: 20px; }
.section p { max-width: 70ch; }
.brand { letter-spacing: 0.2px; }

.section { padding: 56px 0; border-top: 1px solid var(--border); }
.section h2 { margin-top: 0; }

.site-footer { border-top: 1px solid var(--border); padding: 24px 0; font-size: 14px; color: var(--muted); }