html, body {
    overscroll-behavior: none;
    height: 100%;
    margin: 0;
    touch-action: none;
}

body {
    background-color: #f0f0f0;
}

:root {
    --cell: 50px; /* セルサイズ */
}

/* ヘッダー */
.title {
    text-align: center;
    margin-bottom: 0;
    user-select: none;
}

.subtitle {
    text-align: center;
    margin-top: 5px;
    user-select: none;
}

/* 経過時間とリセット */
.status {
    text-align: center;
    margin: 15px 0;
    user-select: none;
}

#reset-btn {
    margin-left: 10px;
    background-color: #dc3545;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
    user-select: none;
}

    #reset-btn:hover {
        background-color: #b52a37;
    }

/* フッター */
footer {
    text-align: center;
    margin-top: 20px;
    font-size: 0.9em;
    color: #444;
    user-select: none;
}

/* 全体 */
.game-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

/* 盤面 */
.board {
    display: grid;
    grid-template-columns: repeat(var(--cols), var(--cell));
    grid-template-rows: repeat(var(--rows), var(--cell));
    border: 2px solid black;
    background-color: #aaa;
}

/* セル共通 */
.cell {
    width: var(--cell);
    height: var(--cell);
}

.wall {
    background: #444;
}

.empty {
    background: #aaa;
}

.exit {
    background: #eee;
    opacity: 0.6;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 14px; /* 小さめ */
    color: #333;
    user-select: none;
}

/* 駒 */
.piece {
    position: relative; /* Gridのセル内で配置 */
    z-index: 2;
    border: 1px solid #555;
    background: #ddd;
    text-align: center;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: scale(0.98);
    transform-origin: top left;
    user-select: none;
    touch-action: none;

    box-sizing: border-box;
    margin: 2px; /* セルとの隙間を確保 */
}

    .piece:active {
        cursor: grabbing;
    }

    .piece.selected {
        outline: 3px solid orange;
    }

/* クリアメッセージ */
.clear-message {
    position: fixed;
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 72px;
    font-weight: bold;
    color: #ff4081;
    text-shadow: 0 0 10px #fff, 0 0 20px #ff80ab, 0 0 30px #ff4081;
    animation: flash 1s infinite alternate;
    z-index: 9999;
    pointer-events: none;
}

@keyframes flash {
    from {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.0);
    }

    to {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

/* 駒色 */
.Color_父 {
    background: #b9bbdd;
}

.Color_娘 {
    background: #e4bdc3;
}

.Color_母 {
    background: #e9cccc;
}

.Color_手代 {
    background: #f7dcb4;
}

.Color_大番頭 {
    background: #dfbfaa;
}

.Color_兄嫁 {
    background: #d2e7d4;
}

.Color_丁稚 {
    background: #e9e3cc;
}

.Color_女中 {
    background: #f3e0e3;
}

.Color_番頭 {
    background: #ddcdc1;
}

.Color_番犬 {
    background: #f7f0f1;
}

.Color_祖父 {
    background: #adafdf;
}

.Color_祖母 {
    background: #daadad;
}

/* ========================================= */
/* 以下デフォルト */
/* ========================================= */
h1:focus {
    outline: none;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid #e50000;
}

.validation-message {
    color: #e50000;
}

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.darker-border-checkbox.form-check-input {
    border-color: #929292;
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}


.developed {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    margin-top: 3rem;
    color: #666;
    font-size: 0.9rem;
}

    .developed span {
        margin-right: 0.4rem;
    }

    .developed a {
        color: #3a78f2;
        text-decoration: none;
        font-weight: 600;
    }

        .developed a:hover {
            color: #77aaff;
            text-decoration: underline;
        }