:root{color-scheme:dark}*,*:before,*:after{box-sizing:border-box}.container{max-width:960px;margin:0 auto;padding:0 1rem}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#202020;color:#f5f5f5}.app-root{min-height:100vh;padding:1.5rem 0;background:#202020}.app-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.app-title{font-size:2.5rem;font-weight:700;letter-spacing:.03em}.spinner{width:28px;height:28px;border:4px solid #ddd;border-top-color:#555;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}