html, body {
    margin: 0;
    padding: 0;
    position: relative;
    overflow-x: hidden;
    font-family: "Roboto", "Helvetica", "Arial", sans-serif;
    font-size: 16px;
    height: 100%;
}

#configurator {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

#preview {
    flex: 6;
    position: relative;
    width: 100%;

}

model-viewer {
    height: 100%;
    width: 100%;
}

#sideNav {
    flex: 4;
    overflow-y: auto;
    width: 100%;
    display: block;
    background-color: #f2f2f2; /* ← ここを追加 */
}

#sideNav .fields {
    /* flex: 1; */
    margin: 15px 50px 15px 50px;
}

#sideNav .fields .field {
    margin-bottom: 20px;
    border-top: 2px solid #e8e3e3;
    padding-top: 10px;
}

#sideNav .fields .field .field-header {
    cursor: pointer;
    margin-bottom: 15px;
}

#sideNav .fields .field .field-label {
    font-size: 20px;
    color: rgb(65, 65, 65);
    margin-bottom: 10px;
}

#sideNav .fields .field .selection-label {
    font-weight: bold;
    color: #388659;
}

#sideNav .fields .field .options {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

#sideNav .fields .field .options .option {
    cursor: pointer;
}

#sideNav .fields .field.text .options .option {
    padding: 10px;
    background-color: rgb(246, 246, 246);
    border: 2px solid rgb(246, 246, 246);
    border-radius: 10px;
}

#sideNav .fields .field.text .options .option.active {
    border: 2px solid #388659;
    background-color: #f3f8f5;
}

#sideNav .fields .field.text .options .option .label {
    text-align: center;
}

#sideNav .fields .field.color .options .option {
    padding-bottom: 8px;
}

#sideNav .fields .field.color .options .option.active {
    border-bottom: 3px solid #388659;
    padding-bottom: 5px;
}

#sideNav .fields .field .options .option .color {
    border-radius: 50%;
    width: 30px;
    height: 30px;
}

#sideNav .fields .field.image .options .option {
    padding-bottom: 8px;
}

#sideNav .fields .field.image .options .option.active {
    border-bottom: 3px solid #388659;
    padding-bottom: 5px;
}

#sideNav .fields .field .options .option .image {
    border-radius: 50%;
    width: 30px;
    height: 30px;
    background-size: contain;
}

/* メディアクエリの整理 */

@media only screen and (min-width: 992px) {
    /* 横並び用の max-width 指定は不要なので削除 */
}

@media only screen and (max-width: 991px) {
    /* display: block や height 調整も不要なので整理 */
    #sideNav .fields {
        margin: 0 50px 15px 50px;
    }
}

@media only screen and (max-width: 575px) {
    /* 画面全体を縦にflexで分割（すでに #configurator に設定済み） */
    
      #sideNav .fields .field {
    margin-bottom: 10px;
    padding-top: 10px;
  }

  #sideNav .fields .field .field-label {
    font-size: 12px;
    margin-bottom: 10px;
  }

  #sideNav .fields .field .selection-label {
    font-size: 12px;
    font-weight: normal;
  }

  #sideNav .fields .field .options {
    gap: 8px;
  }

  #sideNav .fields .field.text .options .option {
    padding: 6px 8px;
    font-size: 12px;
  }

  #sideNav .fields .field .options .option .color,
  #sideNav .fields .field .options .option .image {
    width: 20px;
    height: 20px;
  }   
    
    

    #preview {
        flex: 6;
        height: 60vh;
    }

    #sideNav {
        flex: 4;
        height: 40vh;
        overflow-y: auto; /* 長いときだけ中をスクロール */
         background-color: #f2f2f2; /* ← ここを追加 */
    }

    #sideNav .fields {
        margin: 0 25px 15px 25px;
    }


/* プログレスバー表示用 */
.progress-bar {
    z-index: 1000;
    display: block;
    width: 50%;
    height: 1.1rem;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate3d(-50%, -50%, 0);
    border-radius: 25px;
    box-shadow: 0px 3px 10px 3px rgba(0, 0, 0, 0.5), 0px 0px 5px 1px rgba(0, 0, 0, 0.6);
    border: 2px solid #388659;
    background-color: rgb(242, 242, 242);
}

.progress-bar.hide {
    visibility: hidden;
    transition: visibility 0.5s;
    display: none;
}

.update-bar {
    background-color: #388659;
    width: 0%;
    height: 100%;
    border-radius: 25px;
    float: left;
    transition: width 0.3s;
}