body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
}

.header {
    background-color: #fff;
    padding: 15px 25px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    text-align: center;
    margin-bottom: 20px;
}

h1 {
    color: #333;
    margin: 0 0 15px 0;
}

.input-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.input-area label {
    font-weight: bold;
    color: #555;
}

#chinese-text {
    width: 80%;
    max-width: 600px;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 16px;
    min-height: 60px;
    resize: vertical;
}

.button-group button {
    padding: 10px 20px;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.2s;
}

#generate-btn {
    background-color: #007bff;
}

#generate-btn:hover {
    background-color: #0056b3;
}

.sentence {
    display: none;
}

.stroke-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
    padding: 30px 20px 50px 20px;
}

.character-box {
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    padding: 25px;
    text-align: center;
    width: 90%;
    max-width: 700px;
}

.char {
    font-size: 60px;
    margin-bottom: 15px;
    color: #333;
    font-family: 'KaiTi', 'SimSun', sans-serif;
}

.stroke-order {
    width: 100%;
    max-width: 500px;
    height: auto;
    display: block;
    margin: 0 auto;
}

.missing {
    color: #999;
    font-style: italic;
    font-size: 20px;
    padding: 50px 0;
}

.placeholder {
    color: #777;
    font-size: 18px;
    margin-top: 50px;
}

.line-separator {
    width: 100%;
    border: 0;
    height: 2px;
    background-color: #000000;
    margin: 20px 0;
}

.button-group {
    display: flex;
    gap: 10px; /* Space between buttons */
    margin-top: 5px; /* Space above buttons */
}

#save-pdf-btn {
    background-color: #28a745; /* Green color for save */
}
#save-pdf-btn:hover:not(:disabled) { /* Only change hover if not disabled */
    background-color: #218838;
}

#save-pdf-btn:disabled {
    background-color: #9ecb9a; /* Lighter green */
    cursor: not-allowed;
    opacity: 0.7;
}

/* --- Print Styles --- */
@media print {

    .input-area,
    .button-group,
    .stroke-container .placeholder {
        display: none;
    }

    .header {
        box-shadow: none;
        border-bottom: 1px solid #ccc;
        padding-bottom: 10px;
        margin-bottom: 30px;
    }

    .sentence {
        display: block;
    }

    /* Reset body background and margins for printing */
    body {
        background-color: #fff;
        margin: 0;
        padding: 0;
        font-size: 12pt;
    }

    /* Style each character box for its own page */
    .character-box {
        page-break-after: always;
        box-shadow: none;
        border: 1px solid #ddd;
        width: 90%;
        max-width: none;
        margin: 20px auto;
        padding: 20px;
        overflow: hidden;
    }

    .line-separator {
        display: block;
        page-break-before: always;
        border-top: 4px solid #000;
        width: 100%;
        max-width: none;
        height: 0;
        background-color: transparent;
    }

}