:root{--color-primary: #2e2a7a;--color-accent: #17a589;--color-bg: #f3f2fc;--color-surface: #ffffff;--color-text: #22213a;--color-muted: #5c5b7a;--color-border: #dcd9f7;--radius: 14px;--font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif}*{box-sizing:border-box}body{margin:0;font-family:var(--font);background:var(--color-bg);color:var(--color-text)}.page{max-width:720px;margin:0 auto;padding:32px 16px}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:20px;margin-bottom:16px}.balance{background:var(--color-primary);color:#fff}.balance strong{font-size:40px;display:block}input{width:100%;padding:10px 12px;border:1px solid var(--color-border);border-radius:10px;margin:6px 0 12px;font:inherit}button{background:var(--color-primary);color:#fff;border:0;border-radius:999px;padding:10px 20px;font:inherit;cursor:pointer}.row{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--color-border)}.plus{color:var(--color-accent);font-weight:600}.error{color:#b42318}