.thaitop-form {
    max-width: 450px;
    margin: 2rem auto;
    padding: 2rem;
    border-radius: 8px;
    box-sizing: border-box;
}

.thaitop-form * {
    box-sizing: border-box;
}

.thaitop-form .form-group {
    margin-bottom: 1.5rem;
    width: 100%;
}

.thaitop-form .form-row {
    display: flex;
    gap: 20px; /* Add spacing between columns */
    width: 100%; /* Set row width */
    margin-bottom: 1.5rem;
}

.thaitop-form .form-col {
    flex: 1 1 50%; /* Make each column the same width */
    min-width: 0; /* Prevent over-expansion */
}

.thaitop-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    /* color: #333; */
    font-size: 0.95rem;
    width: 100%;
}

.thaitop-form input {
    width: 100%;
    padding: 0.8rem;
    border-width: 2px;
    border-style: solid;
    border-radius: 6px;
    font-size: 1rem;
    transition: all 0.3s ease;
    display: block;
}

.thaitop-form input:focus {
    outline: none;
    /* border-color และ box-shadow จะถูกกำหนดด้วย PHP */
}

.thaitop-form input:hover {
    border-color: #bdbdbd;
}

.thaitop-form button {
    width: 100%;
    padding: 0.8rem;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: block;
}

.thaitop-form button:hover {
    transform: translateY(-1px);
}

.thaitop-form button:active {
    transform: translateY(0);
}

.thaitop-error {
    color: #dc3545;
    background-color: #fde8e8;
    padding: 0.8rem;
    margin-bottom: 1rem;
    border: 1px solid #f5c2c7;
    border-radius: 6px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
}

.thaitop-error::before {
    content: "⚠";
    margin-right: 8px;
    font-size: 1.1rem;
}

.g-recaptcha {
    margin-bottom: 1.5rem;
    width: 100%;
    display: flex;
    justify-content: center;
}

.g-recaptcha > div {
    margin: 0 auto;
}

@media (max-width: 480px) {
    .thaitop-form {
        padding: 1.5rem;
        margin: 1rem;
        width: calc(100% - 2rem);
    }

    .thaitop-form .form-row {
        flex-direction: column;
        margin-left: 0;
        margin-right: 0;
    }

    .thaitop-form .form-col {
        flex: 1 1 100%; /* ให้คอลัมน์กว้างเต็มในโหมดมือถือ */
        width: 100%;
        padding: 0;
        margin-bottom: 1rem;
    }

    .thaitop-form .form-col:last-child {
        margin-bottom: 0;
    }

    .g-recaptcha {
        transform: scale(0.9);
        transform-origin: center;
    }
}