*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:#f5f5f5}.navbar{display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;background:#fff;border-bottom:1px solid #e0e0e0}.nav-brand{font-weight:700;font-size:1.2rem;color:#07f}.nav-links{display:flex;gap:1rem;align-items:center}.nav-links a{text-decoration:none;color:#333}.nav-btn{background:none;border:none;color:#07f;cursor:pointer;font-size:.95rem}.main-content{max-width:1200px;margin:0 auto;padding:2rem}