:root{--color-primary: #4a5fd9;--color-bg: #f6f7fb;--color-surface: #ffffff;--color-text: #22252f;--color-muted: #6b7080;--color-border: #e2e4ec;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--color-bg);color:var(--color-text)}.container{max-width:960px;margin:0 auto;padding:0 16px}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;padding:16px}button{font-family:inherit;cursor:pointer;border-radius:8px;border:1px solid var(--color-border);background:var(--color-primary);color:#fff;padding:8px 14px}button.secondary{background:transparent;color:var(--color-text)}input,select{font-family:inherit;border-radius:8px;border:1px solid var(--color-border);padding:8px 10px}a{color:var(--color-primary)}