* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 40px 20px;

    font-family:
        Arial,
        Helvetica,
        sans-serif;

    background: #f5f7fa;

    color: #202124;
}


.container {

    max-width: 850px;

    margin: auto;
}


h1 {

    text-align: center;

    font-size: 32px;

    margin-bottom: 8px;
}


.subtitle {

    text-align: center;

    color: #666;

    margin-bottom: 30px;
}


.card {

    background: white;

    border-radius: 14px;

    padding: 30px;

    box-shadow:
        0 4px 20px rgba(0,0,0,0.08);
}


label {

    display: block;

    font-weight: bold;

    margin-top: 18px;

    margin-bottom: 8px;
}


textarea {

    width: 100%;

    min-height: 110px;

    resize: vertical;

    padding: 15px;

    border: 1px solid #ccd2da;

    border-radius: 8px;

    font-family: Arial;

    font-size: 16px;

    line-height: 1.5;
}


textarea:focus {

    outline: none;

    border-color: #555;
}


button {

    width: 100%;

    margin-top: 25px;

    padding: 15px;

    border: none;

    border-radius: 8px;

    background: #222;

    color: white;

    font-size: 17px;

    font-weight: bold;

    cursor: pointer;
}


button:hover {

    background: #444;
}


button:disabled {

    opacity: 0.6;

    cursor: wait;
}


#status {

    margin-top: 18px;

    text-align: center;

    color: #666;

    font-size: 14px;
}


.result {

    margin-top: 25px;

    padding: 25px;

    text-align: center;

    background: #f7f8fa;

    border-radius: 10px;
}


.score {

    font-size: 48px;

    font-weight: bold;

    margin-bottom: 8px;
}


.interpretation {

    font-size: 20px;

    font-weight: bold;

    margin-bottom: 12px;
}


.hidden {

    display: none;
}


.info {

    margin-top: 25px;

    padding: 20px;

    background: white;

    border-radius: 10px;

    line-height: 1.6;

    color: #555;
}