* {
    box-sizing: border-box;
}

html {
    min-height: 100vh;
}

body {
    zoom: 80%;
    font-family: Arial, sans-serif;
    line-height: 1.6;
    padding: 0;
    margin: 0;
    background-color: #3a3453;
    background-image: linear-gradient(to top left, #db7a82,#f0cec7);
    display: flex;
    justify-content: center;
}

.page-container {
    justify-content: center;
    gap: 32px;
    display: flex;
    margin-top: 64px;
    margin-right: 12%;
    margin-bottom: 48px;
    margin-left: 3%;
    width: 100%;
    max-width: 1000px;
}

.info-column, .form-column {    
    padding: 12px 32px 16px 32px;
    box-sizing: border-box;
    word-wrap: break-word;
    overflow-wrap: break-word;
    border-radius: 20px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    background-color: #f4f4f4;
    flex: 1;
    width: 460;
    min-width: 460;
    max-width: 460;
}

.info-content {
    font-size: 18px;
}

.author-info {
    text-align: right;
    font-size: 18px;
}

.form-header {
    text-align: center;
    margin-bottom: 16px;
}

.form-group {
    margin-bottom: 16px;
}

.form-row {
    display: flex;
    gap: 24px;
}

.form-row .form-group {
    flex: 1;
}

#heightGroup {
    display: none;
}

label {
    display: block;
    margin-bottom: 10px;
    font-size: 18px;
}

input, select {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
    font-size: 16px;
}

.date-inputs, .doc-date-inputs {
    display: flex;
    gap: 16px;
    margin-bottom: 14px;
    flex: 1;
}

.daySelect {
    flex: 1;
}

.monthSelect {
    flex: 2;
}

.yearSelect {
    flex: 1.5;
}

button {
    width: 100%;
    padding: 12px;
    background-color: #42b046;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

button:hover:not(.disabled) {
    background-color: #206a23;
}

button.disabled {
    background-color: #838383;
    cursor: not-allowed;
    font-weight: normal;
}

.highlight-required {
    border: 2px solid red !important;
}

.error {
    color: red;
}

.z-score.ok {
    color: rgb(0, 109, 7);
}

.z-score.notok {
    color: red;
}

#resultDiv {
    text-align: right;
    font-size: 20px;
    font-weight: bold;
}

#resultDiv .error {
    color: #dc3545;
    font-weight: bold;
}

@media (max-width: 880px) {

    .page-container {
        flex-direction: column-reverse;
        max-width: 460px;
        margin-left: 3%;
        margin-right: 3%;
    }

    .info-column, .form-column {    
        padding: 12px 32px 32px 32px;
        box-sizing: border-box;
        word-wrap: break-word;
        overflow-wrap: break-word;
        border-radius: 20px;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        background-color: #f4f4f4;
        flex: 1;
        width: 460;
        max-width: 460;
    }

}