#snm {
    max-width: 420px;
    margin: 50px auto;
    padding: 25px;
    background: #ffffff;
    border-radius: 14px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    font-family: Arial, sans-serif;
    text-align: center;
}

/* INPUT */
#snm input {
    width: 100%;
    padding: 14px;
    margin-bottom: 12px;
    border: 1px solid #ddd;
    border-radius: 10px;
    font-size: 15px;
    outline: none;
    transition: 0.2s;
}

#snm input:focus {
    border-color: #2271b1;
    box-shadow: 0 0 0 3px rgba(34, 113, 177, 0.15);
}

/* BUTTON */
#snm button {
    width: 100%;
    padding: 14px;
    background: #2271b1;
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    cursor: pointer;
    transition: 0.2s;
    position: relative;
}

#snm button:hover {
    background: #135e96;
}

/* RESULT BOX */
#result,
#winner_message {
    margin-top: 20px;
    padding: 10px;
    display: none;
    border-radius: 8px;
}

#winner_message {
    display: block;
}

/* WINNER FORM (dynamic form after serial check) */
#result input {
    margin-top: 10px;
}

/* SMALL ANIMATION */
#snm,
#result {
    transition: all 0.3s ease-in-out;
}

.snm-result-warning {
    color: #342405;
    background-color: #ff000024;
}

.snm-result-success {
    color: #1a7f37;
    background-color: #46c16124;
}

#snm .snm_loader {
    width: 20px;
    height: 20px;
    border: 2px solid #FFF;
    border-bottom-color: #FF3D00;
    border-radius: 50%;
    display: inline-block;
    box-sizing: border-box;
    animation: rotation 1s linear infinite;
    position: absolute;
    margin: 0 12px;
    display: none;
    top: 29%;
    left: 32%;
}

@keyframes rotation {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}