:root {
    --border-color: #333;
    --background-color: #fff;
    --text-color: #333;
    --accent-color: #f0f0f0;
}

body {
    font-family: sans-serif;
    /* 背景画像の設定を追加 */
    background-image: url('back.png'); /* ここに画像パス */
    background-size: auto 100vh; /* 縦幅に合わせ、横幅は自動調整 */
    background-position: center center; /* 中央揃え */
    background-repeat: no-repeat; /* 繰り返しなし */
    background-attachment: fixed; /* スクロールしても背景を固定 */
    background-color: var(--background-color); /* 画像が読み込まれない場合の代替色 */
    
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0;
    padding: 1rem;
    box-sizing: border-box;
    overflow: hidden; /* モーダル表示時にスクロールを防ぐ */
}

.container {
    width: 100%;
    max-width: 500px;
    text-align: center;
    /* 半透明の白い背景を削除 */
    /* padding, border-radius, box-shadowは残しても良いですが、今回は背景に合わせ削除 */
    /* background-color: rgba(255, 255, 255, 0.8); */
    /* padding: 1rem; */
    /* border-radius: 10px; */
    /* box-shadow: 0 0 10px rgba(0,0,0,0.1); */
}

h1 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--text-color); /* テキスト色を維持 */
    /* 太めの白いフチを追加 */
    text-shadow:
        -2px -2px 0 #fff,  
        2px -2px 0 #fff,
        -2px 2px 0 #fff,
        2px 2px 0 #fff,
        -3px 0 0 #fff, /* より太く見せるための追加 */
        3px 0 0 #fff,
        0 -3px 0 #fff,
        0 3px 0 #fff;
}

.bingo-board {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    grid-template-rows: repeat(5, 1fr);
    border: 2px solid var(--border-color);
    aspect-ratio: 1 / 1;
    width: 100%;
}

.bingo-cell {
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    background-size: cover;
    background-position: center;
    position: relative;
    font-size: 0.8rem;
    font-weight: bold;
    overflow: hidden;
    word-break: break-all;
    padding: 0.1rem;
    text-align: center;
    line-height: 1.2;
    background-color: #fff; /* 背景色を白に設定 */
}

.bingo-cell.completed i {
    display: none;
}

.controls {
    display: flex;
    justify-content: space-around;
    margin: 1.5rem 0;
    gap: 5px;
    flex-wrap: wrap;
}

button, .button-like-label {
    flex-grow: 1;
    flex-basis: 0;
    min-width: 90px;
    padding: 0.6rem 0.5rem;
    border: 2px solid var(--border-color);
    background-color: #fff; /* 背景色を白に設定 */
    color: var(--text-color); /* テキスト色はデフォルトを維持 */
    font-size: 0.9rem;
    cursor: pointer;
    font-weight: bold;
    border-radius: 5px;
    white-space: nowrap;
    display: inline-block;
    box-sizing: border-box;
}

.points-area {
    margin-top: 1rem;
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--text-color); /* テキスト色を維持 */
    /* 太めの白いフチを追加 */
    text-shadow:
        -2px -2px 0 #fff,  
        2px -2px 0 #fff,
        -2px 2px 0 #fff,
        2px 2px 0 #fff,
        -3px 0 0 #fff, /* より太く見せるための追加 */
        3px 0 0 #fff,
        0 -3px 0 #fff,
        0 3px 0 #fff;
}

/* モーダル共通スタイル */
.modal {
    display: none;
    position: fixed;
    z-index: 100;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.5);
    align-items: center;
    justify-content: center;
    -webkit-overflow-scrolling: touch;
}

.modal-content {
    background-color: #fefefe;
    margin: auto;
    padding: 15px;
    border: 2px solid var(--border-color);
    width: 80%;
    max-width: 400px;
    position: relative;
    border-radius: 10px;
    text-align: center;
}

.modal-content h2 {
    text-align: center;
    margin-top: 0;
    margin-bottom: 20px;
}

.modal-content p {
    text-align: center;
    margin-bottom: 15px;
}

.small-text {
    font-size: 0.8rem;
    color: #666;
    margin-top: 5px;
    margin-bottom: 20px;
}

.close-button {
    color: #aaa;
    position: absolute;
    top: 10px;
    right: 20px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

/* 設定モーダル内の要素 */
#settings-modal h3 {
    margin-top: 25px;
    margin-bottom: 15px;
    font-size: 1.1rem;
    text-align: left;
    border-bottom: 1px solid #eee;
    padding-bottom: 5px;
}

.word-input-area {
    display: flex;
    gap: 5px;
    margin-bottom: 10px;
    align-items: center;
}

#custom-word-input {
    flex-grow: 1;
    padding: 0.6rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    min-width: 0;
}

#add-word-button {
    flex-shrink: 0;
    padding: 0.6rem 0.8rem;
    width: auto;
    margin-bottom: 0;
}

#settings-modal button, #settings-modal .button-like-label {
    display: block;
    width: 100%;
    margin-bottom: 10px;
    padding: 0.8rem;
    text-align: center;
}
#settings-modal button:last-child, #settings-modal .button-like-label:last-child {
    margin-bottom: 0;
}


/* 写真切り抜き関連 */
#cropper-container {
    width: 100%;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    position: relative;
    background-color: #eee;
    margin: 1rem 0;
    touch-action: none;
    border: 1px solid var(--border-color);
}

#cropper-image {
    position: absolute;
    top: 0;
    left: 0;
    transform-origin: 0 0;
    cursor: grab;
    user-select: none;
    -webkit-user-drag: none;
    will-change: transform;
}

#crop-box {
    position: absolute;
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.5);
    cursor: grab;
    border: 2px dashed #fff;
    z-index: 10;
    box-sizing: border-box;
}

.resize-handle {
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: #fff;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    z-index: 20;
    touch-action: none;
}

.resize-handle.top-left {
    top: -10px;
    left: -10px;
    cursor: nwse-resize;
}
.resize-handle.top-right {
    top: -10px;
    right: -10px;
    cursor: nesw-resize;
}
.resize-handle.bottom-left {
    bottom: -10px;
    left: -10px;
    cursor: nesw-resize;
}
.resize-handle.bottom-right {
    bottom: -10px;
    right: -10px;
    cursor: nwse-resize;
}