/* ==========================================
   carousel.css - 輪播區塊（遊戲活動視窗風格）
   - 控制按鈕：桌機/平板於圖片外側、手機貼於邊緣內側
   - 指示器：移至圖片下方
   ========================================== */

.carousel-section {
    margin-top: 24px;
    margin-bottom: 0;
    width: 100%;
    max-width: 100%;
    overflow: visible;
    position: relative;
    padding: 2.5rem 0 1.5rem;
}

/* 包含容器 + 左右箭頭 的相對定位包裝層 */
.carousel-outer {
    position: relative;
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 80px; /* 預留外側箭頭空間 */
}

.carousel-container {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 38.5%;
    background: linear-gradient(135deg, #3E2723, #5D4037);
    border-radius: 20px;
    border: 5px solid var(--border-color);
    box-shadow:
        0 10px 0 var(--shadow-color),
        inset 0 0 30px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}

.carousel-container::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    border: 3px solid rgba(255, 158, 44, 0.3);
    border-radius: 15px;
    z-index: 1;
    pointer-events: none;
}

#mainCarousel {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.carousel-inner {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-item {
    position: relative;
    height: 100%;
}

.carousel-item img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.carousel-link {
    display: block;
    width: 100%;
    height: 100%;
}

/* ==========================================
   控制按鈕（外移至圖片外側）
   ========================================== */
.carousel-control-prev,
.carousel-control-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 70px;
    height: 70px;
    opacity: 1;
    z-index: 10;
    background: transparent;
    border: 0;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-control-prev {
    left: 5px;
}

.carousel-control-next {
    right: 5px;
}

.carousel-control-btn {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    border: 4px solid var(--border-color);
    transition: all 0.3s ease;
    box-shadow: 0 5px 0 var(--shadow-color);
}

.carousel-control-btn i {
    font-size: 24px;
    color: white;
    transition: transform 0.3s ease;
    filter: drop-shadow(2px 2px 0 rgba(0,0,0,0.5));
}

.carousel-control-prev:hover .carousel-control-btn,
.carousel-control-next:hover .carousel-control-btn {
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    transform: scale(1.15);
    box-shadow: 0 7px 0 var(--shadow-color);
}

.carousel-control-prev:hover .carousel-control-btn i {
    transform: translateX(-5px);
}

.carousel-control-next:hover .carousel-control-btn i {
    transform: translateX(5px);
}

.carousel-control-prev:active .carousel-control-btn,
.carousel-control-next:active .carousel-control-btn {
    transform: scale(1.05);
    box-shadow: 0 3px 0 var(--shadow-color);
}

.carousel-control-prev:focus-visible,
.carousel-control-next:focus-visible {
    outline: 3px solid var(--accent-color);
    outline-offset: 4px;
    border-radius: 50%;
}

/* ==========================================
   指示器（移至圖片下方、修正顯示問題）
   - 重置 Bootstrap 預設絕對定位
   ========================================== */
.carousel-indicators {
    position: relative;
    bottom: auto;
    left: auto;
    right: auto;
    margin: 1.5rem auto 0;
    padding: 0;
    display: flex;
    justify-content: center;
    gap: 12px;
    z-index: 2;
}

.carousel-indicators [data-bs-target],
.carousel-indicators button {
    box-sizing: content-box;
    flex: 0 0 auto;
    width: 50px;
    height: 12px;
    padding: 0;
    margin: 0;
    text-indent: -999px;
    cursor: pointer;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0.4));
    background-clip: padding-box;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    opacity: 1;
    transition: all 0.3s ease;
    box-shadow: 0 3px 0 var(--shadow-strong);
}

[data-theme="dark"] .carousel-indicators button {
    background: linear-gradient(135deg, rgba(255, 177, 85, 0.3), rgba(255, 177, 85, 0.15));
}

.carousel-indicators .active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    width: 70px;
    height: 14px;
    transform: translateY(-2px);
    box-shadow: 0 5px 0 var(--shadow-strong);
    opacity: 1;
}

.carousel-indicators button:hover {
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    transform: translateY(-2px) scale(1.05);
}

.carousel-indicators button:focus-visible {
    outline: 3px solid var(--accent-color);
    outline-offset: 3px;
}

/* ==========================================
   響應式調整
   ========================================== */
/* 大平板（≤1199px）：縮減外側留白 */
@media (max-width: 1199.98px) {
    .carousel-outer {
        padding: 0 70px;
    }
}

/* 小平板（≤991px）：箭頭往內貼 */
@media (max-width: 991.98px) {
    .carousel-outer {
        padding: 0 60px;
    }

    .carousel-control-btn {
        width: 50px;
        height: 50px;
        border-width: 3px;
    }

    .carousel-control-btn i {
        font-size: 20px;
    }
}

/* 手機（≤767px）：隱藏左右控制按鈕、加大指示器觸控區 */
@media (max-width: 767.98px) {
    .carousel-section {
        margin-top: 0;
        padding: 1rem 0 1rem;
    }

    .carousel-outer {
        padding: 0 12px;
    }

    .carousel-container {
        border-width: 4px;
        box-shadow:
            0 6px 0 var(--shadow-color),
            inset 0 0 20px rgba(0, 0, 0, 0.5);
    }

    /* 隱藏左右控制按鈕（手機改用滑動或點擊指示器切換） */
    .carousel-control-prev,
    .carousel-control-next {
        display: none !important;
    }

    /* 指示器列：擴大整列容器的留白以避免邊緣按鈕被切 */
    .carousel-indicators {
        margin-top: 0.6rem;
        gap: 4px;
        padding: 0;
    }

    /* 指示器按鈕：
       - 未啟用：實心灰棕 + inset box-shadow 模擬深棕邊框，在米白背景上清楚可見
       - 透明 border 擴大觸控區（不影響視覺，只擴大可點擊範圍）
       - background-clip: padding-box 確保背景不延伸到 transparent border 區 */
    .carousel-indicators button,
    .carousel-indicators [data-bs-target] {
        width: 36px;
        height: 12px;
        background-color: rgba(93, 64, 55, 0.55);
        background-image: linear-gradient(135deg, rgba(93, 64, 55, 0.7), rgba(93, 64, 55, 0.4));
        background-clip: padding-box;
        /* 透明 border 擴大觸控區 */
        border-top: 14px solid transparent;
        border-bottom: 14px solid transparent;
        border-left: 6px solid transparent;
        border-right: 6px solid transparent;
        border-radius: 12px;
        /* 用 inset box-shadow 模擬邊框（因為 border 已用作觸控區擴展） */
        box-shadow: inset 0 0 0 2px var(--border-color);
        margin: 0;
        box-sizing: content-box;
        opacity: 1;
        transition: width 0.3s ease, height 0.3s ease,
                    background 0.3s ease, box-shadow 0.3s ease;
    }

    /* 暗色模式：指示器需在深色背景上清晰可見 */
    [data-theme="dark"] .carousel-indicators button,
    [data-theme="dark"] .carousel-indicators [data-bs-target] {
        background-image: linear-gradient(135deg, rgba(245, 230, 211, 0.5), rgba(245, 230, 211, 0.25));
        box-shadow: inset 0 0 0 2px var(--border-color);
    }

    /* 已啟用狀態：鮮豔橘綠漸層 + 加大尺寸 + 發光 */
    .carousel-indicators .active {
        width: 56px;
        height: 14px;
        background-image: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
        background-clip: padding-box;
        box-shadow:
            inset 0 0 0 2px var(--border-color),
            0 2px 8px rgba(255, 158, 44, 0.5);
        transform: none;
    }

    /* 點擊回饋 */
    .carousel-indicators button:active {
        transform: scale(0.9);
    }

    /* hover 仍保留視覺提示（觸控筆 / 滑鼠操作手機版時） */
    .carousel-indicators button:hover {
        background-image: linear-gradient(135deg, rgba(255, 158, 44, 0.7), rgba(150, 200, 57, 0.5));
        transform: none;
    }
}

/* 小螢幕手機（≤480px） */
@media (max-width: 480px) {
    .carousel-indicators button,
    .carousel-indicators [data-bs-target] {
        width: 32px;
        height: 10px;
    }

    .carousel-indicators .active {
        width: 50px;
        height: 12px;
    }
}