body{background:#f5f5f5;margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont}.container{max-width:420px;margin:auto;padding:16px}.card{background:#fff;border-radius:16px;margin-bottom:16px;padding:16px;box-shadow:0 4px 12px #00000014}.title{font-size:18px;font-weight:700}.sub{color:#555;margin-bottom:8px;font-size:14px}.row{justify-content:space-between;margin:6px 0;display:flex}button{border:none;border-radius:12px;width:100%;margin-top:10px;padding:12px;font-size:16px}.primary{color:#fff;background:#1976d2}.secondary{background:#eee}.ghost{color:#1976d2;background:0 0}.qr{border-radius:12px;width:100%;max-width:280px;height:auto;margin:12px auto;display:block;box-shadow:0 4px 12px #00000026}.loader{text-align:center;padding:40px}.error{color:red;text-align:center;margin-top:8px}