/* =========================================================
   遊戲專用樣式與虛擬搖桿 (Virtual Controls & Game Layouts)
   針對手機觸控與長輩點擊特別優化：按鈕超大、間距防誤觸
   ========================================================= */

/* 手機與觸控螢幕專用虛擬按鍵區 (Virtual Controller Bar) */
.virtual-controller-panel {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #2D1A10;
    border: 3px inset #5C3A21;
    border-radius: 12px;
    padding: 16px;
    margin-top: 14px;
    gap: 16px;
    user-select: none;
    -webkit-user-select: none;
}

/* 復古十字鍵 (Retro D-Pad) */
.virtual-dpad {
    display: grid;
    grid-template-columns: repeat(3, 56px);
    grid-template-rows: repeat(3, 56px);
    gap: 4px;
    justify-content: center;
    align-items: center;
}

.dpad-btn {
    background: linear-gradient(180deg, #4B382A 0%, #291D16 100%);
    color: #FDE68A;
    border: 3px outset #6B4E3D;
    border-radius: 8px;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    touch-action: manipulation;
    transition: filter 0.05s, transform 0.05s;
    box-shadow: 1px 3px 6px rgba(0,0,0,0.4);
}

.dpad-btn:active, .dpad-btn.pressed {
    border-style: inset;
    background: #1F1510;
    transform: scale(0.96);
}

.dpad-up    { grid-column: 2; grid-row: 1; }
.dpad-left  { grid-column: 1; grid-row: 2; }
.dpad-center{ grid-column: 2; grid-row: 2; background: #1C130D; border: none; box-shadow: none; }
.dpad-right { grid-column: 3; grid-row: 2; }
.dpad-down  { grid-column: 2; grid-row: 3; }

/* 動作功能鍵組 (Action Buttons) */
.virtual-actions {
    display: flex;
    gap: 16px;
    align-items: center;
}

.action-btn {
    width: 74px;
    height: 74px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 18px;
    cursor: pointer;
    touch-action: manipulation;
    box-shadow: 0 5px 12px rgba(0,0,0,0.5);
    user-select: none;
}

.action-btn.fire-btn {
    background: radial-gradient(circle at 35% 35%, #F87171, #DC2626 60%, #991B1B);
    color: #FFFFFF;
    border: 4px outset #FCA5A5;
    text-shadow: 1px 1px 2px #000;
}

.action-btn.fire-btn:active {
    border-style: inset;
    transform: scale(0.94);
    background: #991B1B;
}

.action-btn.aux-btn {
    background: radial-gradient(circle at 35% 35%, #FDE047, #EAB308 60%, #A16207);
    color: #451A03;
    border: 4px outset #FEF08A;
    text-shadow: 1px 1px 0px rgba(255,255,255,0.4);
}

.action-btn.aux-btn:active {
    border-style: inset;
    transform: scale(0.94);
    background: #A16207;
}

/* 遊戲專屬快捷列 (例如五子棋悔棋、提示) */
.game-custom-bar {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 14px;
}

.game-custom-bar .retro-btn {
    min-width: 130px;
    font-size: var(--font-base);
}

/* 遊戲模式切換 (單人/雙人、休閒/經典) */
.game-mode-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #3B2414;
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid #78350F;
}

.game-mode-toggle label {
    color: #FDE68A;
    font-size: calc(var(--font-base) * 0.85);
    font-weight: bold;
}

.game-mode-toggle select {
    background: #FFFBEB;
    border: 2px outset #F59E0B;
    border-radius: 4px;
    padding: 4px 8px;
    font-family: inherit;
    font-size: calc(var(--font-base) * 0.85);
    color: #451A03;
    font-weight: bold;
}