:root{--brand:#2563eb;--brand-ink:#ffffff;--ink:#18181b;--muted:#71717a;--line:#e4e4e7;--bg:#fafafa;--card:#ffffff;--radius:14px;--font:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}*{box-sizing:border-box}body,html{margin:0;padding:0}body{font-family:var(--font);color:var(--ink);background:var(--bg)}a{color:inherit}.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;background:var(--card);border-bottom:1px solid var(--line)}.brand{font-weight:800;font-size:17px}.brand,.cartLink{text-decoration:none}.cartLink{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;padding:7px 14px;border:1px solid var(--line);background:var(--card)}.badge,.cartLink{border-radius:999px}.badge{display:inline-grid;place-items:center;min-width:18px;height:18px;padding:0 5px;background:var(--brand);color:var(--brand-ink);font-size:11px;font-weight:700}.footer{margin-top:48px;padding:24px 20px;text-align:center;color:var(--muted);font-size:13px;border-top:1px solid var(--line)}.footer-links{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:8px}.footer-links a{color:var(--muted);text-decoration:none;font-size:13px}.footer-links a:hover{color:var(--ink);text-decoration:underline}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 16px;border-radius:10px;border:1px solid var(--line);background:var(--card);font-size:14px;font-weight:700;cursor:pointer;text-decoration:none;color:var(--ink)}.btn-primary{background:var(--brand);color:var(--brand-ink);border-color:var(--brand)}.btn:disabled{opacity:.5;cursor:not-allowed}