body {
    background: linear-gradient(to bottom, #ff6a00, #ff9900);
    font-family: 'Kanit', sans-serif;
    text-align: center;
    color: #333;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 350px;
    background: #fff;
    padding: 20px;
    margin: 50px auto;
    border-radius: 15px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.2);
}

h2 {
    color: #ff6a00;
    font-size: 22px;
    margin-bottom: 15px;
}

input {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 16px;
    background: #f9f9f9;
    transition: border 0.3s;
}

input:focus {
    border-color: #ff6a00;
    outline: none;
}

button {
    background: #ff6a00;
    color: white;
    border: none;
    padding: 12px;
    border-radius: 10px;
    cursor: pointer;
    width: 100%;
    font-size: 16px;
    transition: background 0.3s;
}

button:hover {
    background: #e65c00;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.15);
}

.error {
    color: red;
    font-size: 14px;
    margin-top: 5px;
}

.success {
    color: green;
    font-size: 14px;
    margin-top: 5px;
}

a {
    display: block;
    margin-top: 15px;
    color: #ff6a00;
    text-decoration: none;
    font-size: 14px;
}

a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .container {
        width: 90%;
        padding: 15px;
    }

    h2 {
        font-size: 20px;
    }

    input {
        font-size: 14px;
        padding: 10px;
    }

    button {
        font-size: 14px;
        padding: 10px;
    }
}