/* ===== 基本排版與背景 ===== */
body {
    background-color: #f5f5f5;
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

/* ===== Modal 遮罩與內容 ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0,0,0,0.5);
    display: none; /* 預設隱藏 */
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.modal-content {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 0 10px rgba(0,0,0,0.3);
}

/* Modal 表單欄位 */
.form-group {
    margin-bottom: 15px;
}

    .form-group label {
        display: block;
        font-weight: bold;
        margin-bottom: 6px;
    }

    .form-group input {
        width: 100%;
        padding: 8px;
        border: 1px solid #ccc;
        border-radius: 4px;
    }

/* Modal 按鈕區塊 */
.modal-buttons {
    display: flex;
    /*justify-content: flex-end;*/
    justify-content: center; /* 改成置中 */
    margin-top: 20px;
}

    .modal-buttons button {
        flex: 1; /* 平均分配寬度 */
        max-width: 150px; /* 可選：限制最大寬度 */
        padding: 8px 16px;
        font-size: 14px;
        border: none;
        border-radius: 4px;
        cursor: pointer;
    }

        .modal-buttons button:first-child {
            background-color: #0078d4;
            color: white;
        }

        .modal-buttons button:last-child {
            background-color: #ccc;
        }

/* 鎖定背景互動 */
body.modal-open {
    overflow: hidden;
    pointer-events: none;
}

    body.modal-open #modalOverlay {
        pointer-events: auto;
    }


/* ===== 表單容器 ===== */
.form-container {
    max-width: 700px;
    margin: 20px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

/* ===== 單一欄位 (label + input/select) ===== */
.form-row.single {
    display: grid;
    grid-template-columns: auto 1fr; /* label + input */
    gap: 10px;
    align-items: center;
    margin-bottom: 12px;
    padding-left: 10px;
    padding-right: 10px;
}

    .form-row.single label {
        font-weight: bold;
    }

    .form-row.single input,
    .form-row.single select {
        width: 100%;
        max-width: 220px;
        padding: 4px 6px;
        border: 1px solid #ccc;
        border-radius: 4px;
    }

/* ===== 三組數值欄位 (N, Ae, Le) ===== */
.form-row.triple {
    display: grid;
    grid-template-columns: auto 1fr auto 1fr auto 1fr;
    gap: 10px;
    align-items: center;
    margin-bottom: 12px;
    padding-left: 10px;
    padding-right: 10px;
}

    .form-row.triple label {
        font-weight: bold;
    }

    .form-row.triple input {
        width: 100%;
        max-width: 200px;
        padding: 4px 6px;
        border: 1px solid #ccc;
        border-radius: 4px;
    }

/* ===== 材質選單 (每組獨立) ===== */
.form-row.double {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 10px;
    align-items: center;
    margin-bottom: 12px;
    padding-left: 10px;
    padding-right: 10px;
}

    .form-row.double label {
        font-weight: bold;
    }

    .form-row.double select {
        width: 100%;
        max-width: 220px;
        padding: 4px 6px;
        border: 1px solid #ccc;
        border-radius: 4px;
    }

/* ===== Checkbox 區塊 ===== */
.form-row.checkbox-group {
    display: grid;
    grid-template-columns: auto auto; /* 兩個 checkbox 並排 */
    gap: 20px; /* 間距 */
    justify-content: start; /* 靠左 */
    align-items: center;
    padding-left: 10px;
    margin-bottom: 12px;
}

.checkbox-label {
    display: inline-flex;
    align-items: center;
    white-space: nowrap; /* 避免文字換行 */
}

    .checkbox-label input[type="checkbox"] {
        margin-right: 6px;
    }

/* ===== 按鈕樣式 ===== */
.form-row.buttons {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
    padding-right: 10px;
}

    .form-row.buttons button {
        padding: 8px 16px;
        font-size: 16px;
        background-color: #0078d4;
        color: white;
        border: none;
        border-radius: 4px;
        cursor: pointer;
    }

        .form-row.buttons button:hover {
            background-color: #005fa3;
        }

/* ===== 響應式排版：手機直排 ===== */
@media (max-width: 600px) {
    .form-row.triple {
        grid-template-columns: auto 1fr; /* 改成直排 */
    }

    .form-row.double {
        grid-template-columns: auto 1fr; /* 保持直排 */
    }

    .form-row.checkbox-group {
        grid-template-columns: auto; /* 改成直排 */
    }

    .checkbox-label {
        margin-bottom: 8px;
    }
}