:root{--color-text: #502a2a;--color-muted: #666;--color-border: #eee;--color-surface: rgba(255, 255, 255, .4);--card-max-width: 680px;--card-padding: 1rem;--card-inset: 1rem;--color-error: #b00020}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,sans-serif;color:var(--color-text);background:#f1deaa73}img{max-width:100%}@media(max-width:640px){:root{--card-max-width: 100%;--card-padding: .75rem;--card-inset: .5rem}}.error{color:var(--color-error)}