body {
    font-family: Arial, sans-serif;
    background: #f2f2f2;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 480px;
    margin: auto;
    padding: 20px;
    text-align: center;
    background: white;
    margin-top: 40px;
    border-radius: 12px;
    box-shadow: 0 0 8px rgba(0,0,0,0.2);
}

.logo {
    width: 140px;
    margin-bottom: 15px;
}

input {
    width: 90%;
    padding: 12px;
    margin-top: 10px;
    border-radius: 8px;
    border: 1px solid #888;
    font-size: 16px;
}

button {
    width: 95%;
    padding: 12px;
    margin-top: 14px;
    font-size: 18px;
    background: #0064ff;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}

button:hover {
    background: #0044aa;
}

.error {
    color: red;
    margin-top: 15px;
    font-weight: bold;
}

.box {
    background: #e8f4ff;
    padding: 16px;
    border-radius: 10px;
    margin-top: 20px;
    text-align: left;
}