/* ============================================================
   menu.css - 菜單專用樣式 (水滴滑出效果)
   ============================================================ */

/* ============================================================
   菜單欄
   ============================================================ */
.menu-wrapper {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: center;
    z-index: 100;
    padding: 0 20px 10px 20px;
    pointer-events: none;
}

.menu-container {
    display: flex;
    flex-wrap: nowrap;
    justify-content: center;
    align-items: center;
    gap: 6px 14px;
    max-width: 1850px;
    width: 100%;
    background: rgba(84, 157, 252, 0.35);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 60px;
    padding: 8px 22px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.20);
    pointer-events: auto;
    position: relative;
    overflow: visible;
    transition: box-shadow 0.3s ease, background 0.3s ease;
}

.menu-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    flex-shrink: 0;
}

.main-btn, .sub-btn, .sub-sub-btn {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================================
   主按鈕
   ============================================================ */
.main-btn {
    background: rgba(255, 255, 255, 0.70);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border: none;
    border-radius: 40px;
    padding: 8px 20px;
    color: #2d1b4e;
    font-size: 0.98rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    user-select: none;
    min-width: 60px;
    text-align: center;
    letter-spacing: 0.3px;
    position: relative;
    z-index: 2;
    transform: scale(1);
    opacity: 0.80;
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1),
        opacity 0.35s cubic-bezier(0.34, 1.56, 0.64, 1),
        background 0.25s ease,
        box-shadow 0.25s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.main-btn:hover {
    opacity: 1;
    background: rgba(255, 152, 250, 0.85);
    color: #ffffff;
    box-shadow: 0 6px 24px rgba(255, 255, 255, 0.35);
}

.main-btn:active {
     transform: scale(1.02); 
    opacity: 0.9;
    transition-duration: 0.1s;
}

.main-btn.has-link {
    text-decoration: none;
    text-decoration-color: rgba(120, 80, 180, 0.4);
    text-underline-offset: 4px;
    text-decoration-thickness: 2px;
}

/* ============================================================
   二級菜單 - 水滴彈出效果
   ============================================================ */
.sub-menu {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(200, 170, 220, 0.30);
    border-radius: 20px;
    padding: 10px 14px;
    min-width: 150px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.08) inset;
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateX(-50%) translateY(-30px) scale(0.7);
    transform-origin: top center;
    transition: opacity 0.5s cubic-bezier(0.34, 1.56, 0.64, 1),
                transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1),
                visibility 0.5s ease;
}

.menu-item.active .sub-menu {
    display: flex !important;
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0) scale(1);
    pointer-events: auto;
}

/* ===== 水滴 - 每個項目逐個彈出 ===== */
.menu-item.active .sub-menu .sub-item {
    animation: dropIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.menu-item.active .sub-menu .sub-item:nth-child(1) { animation-delay: 0.02s; }
.menu-item.active .sub-menu .sub-item:nth-child(2) { animation-delay: 0.06s; }
.menu-item.active .sub-menu .sub-item:nth-child(3) { animation-delay: 0.10s; }
.menu-item.active .sub-menu .sub-item:nth-child(4) { animation-delay: 0.14s; }
.menu-item.active .sub-menu .sub-item:nth-child(5) { animation-delay: 0.18s; }
.menu-item.active .sub-menu .sub-item:nth-child(6) { animation-delay: 0.22s; }
.menu-item.active .sub-menu .sub-item:nth-child(7) { animation-delay: 0.26s; }
.menu-item.active .sub-menu .sub-item:nth-child(8) { animation-delay: 0.30s; }
.menu-item.active .sub-menu .sub-item:nth-child(9) { animation-delay: 0.34s; }
.menu-item.active .sub-menu .sub-item:nth-child(10) { animation-delay: 0.38s; }
.menu-item.active .sub-menu .sub-item:nth-child(11) { animation-delay: 0.42s; }
.menu-item.active .sub-menu .sub-item:nth-child(12) { animation-delay: 0.46s; }
.menu-item.active .sub-menu .sub-item:nth-child(13) { animation-delay: 0.50s; }
.menu-item.active .sub-menu .sub-item:nth-child(14) { animation-delay: 0.54s; }
.menu-item.active .sub-menu .sub-item:nth-child(15) { animation-delay: 0.58s; }
.menu-item.active .sub-menu .sub-item:nth-child(16) { animation-delay: 0.62s; }
.menu-item.active .sub-menu .sub-item:nth-child(17) { animation-delay: 0.66s; }
.menu-item.active .sub-menu .sub-item:nth-child(18) { animation-delay: 0.70s; }
.menu-item.active .sub-menu .sub-item:nth-child(19) { animation-delay: 0.74s; }
.menu-item.active .sub-menu .sub-item:nth-child(20) { animation-delay: 0.78s; }

@keyframes dropIn {
    0% {
        opacity: 0;
        transform: translateY(-15px) scale(0.85);
    }
    50% {
        opacity: 1;
        transform: translateY(5px) scale(1.03);
    }
    70% {
        transform: translateY(-2px) scale(0.98);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ============================================================
   三級菜單 - 水滴滑出效果
   ============================================================ */
.sub-sub-menu {
    display: none;
    flex-direction: column;
    gap: 3px;
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 18px;
    padding: 8px 12px;
    min-width: 120px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.10) inset;
    position: absolute;
    left: 100%;
    top: -6px;
    margin-left: 10px;
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-10px) translateY(-5px) scale(0.92);
    transition: opacity 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
                transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
                visibility 0.3s ease;
    transform-origin: left center;
    pointer-events: none;
}

.sub-item.active > .sub-sub-menu {
    display: flex !important;
    opacity: 1;
    visibility: visible;
    transform: translateX(0) translateY(0) scale(1);
    pointer-events: auto;
}

/* 三級水滴 - 逐個彈出 */
.sub-item.active > .sub-sub-menu .sub-sub-btn {
    animation: dropInSub 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.sub-item.active > .sub-sub-menu .sub-sub-btn:nth-child(1) { animation-delay: 0.02s; }
.sub-item.active > .sub-sub-menu .sub-sub-btn:nth-child(2) { animation-delay: 0.05s; }
.sub-item.active > .sub-sub-menu .sub-sub-btn:nth-child(3) { animation-delay: 0.08s; }
.sub-item.active > .sub-sub-menu .sub-sub-btn:nth-child(4) { animation-delay: 0.11s; }
.sub-item.active > .sub-sub-menu .sub-sub-btn:nth-child(5) { animation-delay: 0.14s; }

@keyframes dropInSub {
    0% {
        opacity: 0;
        transform: translateX(-10px) scale(0.9);
    }
    50% {
        opacity: 1;
        transform: translateX(3px) scale(1.03);
    }
    70% {
        transform: translateX(-1px) scale(0.97);
    }
    100% {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}

.sub-sub-menu.left {
    left: auto;
    right: 100%;
    margin-left: 0;
    margin-right: 10px;
    transform-origin: right center;
}

.sub-item.active > .sub-sub-menu.left {
    transform: scale(1) translateX(0);
}

/* ============================================================
   二級 & 三級 按鈕
   ============================================================ */
.sub-btn,
.sub-sub-btn {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    border: none;
    border-bottom: 1px solid rgba(180, 150, 200, 0.08);
    padding: 7px 18px;
    color: #2d1b4e;
    font-size: 0.9rem;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
    text-align: center;
    white-space: nowrap;
    border-radius: 12px;
    letter-spacing: 0.2px;
}

.sub-btn:last-child,
.sub-sub-btn:last-child {
    border-bottom: none;
}

.sub-btn:hover,
.sub-sub-btn:hover {
    background: rgba(56, 149, 255, 0.85);
    color: #ffffff;
    transform: scale(1);
    box-shadow: 0 2px 8px rgba(56, 149, 255, 0.25);
}

.sub-btn.has-sub::after {
    content: '›';
    margin-left: 10px;
    font-size: 1.2rem;
    opacity: 0.5;
    display: inline-block;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.sub-item.active > .sub-btn.has-sub::after {
    transform: rotate(90deg);
    opacity: 0.9;
}

.sub-btn.has-link,
.sub-sub-btn.has-link {
    text-decoration: none;
    text-decoration-color: rgba(120, 80, 180, 0.4);
    text-underline-offset: 3px;
    text-decoration-thickness: 2px;
}

.sub-item {
    position: relative;
    width: 100%;
}

.sub-item .sub-btn {
    width: 100%;
}

/* ============================================================
   遮罩
   ============================================================ */
.overlay-close {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 5;
    display: none;
    pointer-events: auto;
}

.overlay-close.active {
    display: block;
}

/* ============================================================
   手機端 / 窄螢幕樣式
   ============================================================ */

/* 手機端預設隱藏子選單 */
@media screen and (max-width: 1400px) {
    .sub-menu, .sub-sub-menu {
        display: none !important;
        position: static !important;
        width: 100% !important;
        box-shadow: none !important;
        opacity: 1 !important;
        visibility: visible !important;
        transform: none !important;
        animation: none !important;
        border-radius: 10px !important;
    }

    .menu-item.active > .sub-menu {
        display: flex !important;
    }

    .sub-item.active > .sub-sub-menu {
        display: flex !important;
    }
    
    /* 手機版關閉水滴動畫 */
    .menu-item.active .sub-menu .sub-item {
        animation: none !important;
    }
    
    .sub-item.active > .sub-sub-menu .sub-sub-btn {
        animation: none !important;
    }
}

/* ============================================================
   手機端 - 漢堡包按鈕
   ============================================================ */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 44px;
    height: 44px;
    padding: 10px 12px;
    background: rgba(255, 255, 255, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    cursor: pointer;
    position: fixed;
    top: 15px;
    right: 15px;
    z-index: 1000;
    transition: background 0.3s ease;
}

.mobile-menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background-color: #2d1b4e;
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}
.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 900;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.mobile-menu-overlay.active {
    display: block;
    opacity: 1;
    pointer-events: auto;
}

/* ============================================================
   手機端 - 抽屜式選單
   ============================================================ */
@media screen and (max-width: 1180px) {
    .mobile-menu-toggle {
        display: flex !important;
    }

    .menu-wrapper {
        position: fixed !important;
        top: 0 !important;
        right: -100% !important;
        left: auto !important;
        width: 280px !important;
        max-width: 85vw !important;
        height: 100vh !important;
        padding: 80px 16px 30px !important;
        backdrop-filter: blur(20px) !important;
        -webkit-backdrop-filter: blur(20px) !important;
        z-index: 950 !important;
        transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1) !important;
        overflow-y: auto !important;
        box-shadow: -5px 0 25px rgba(0, 0, 0, 0.2) !important;
        pointer-events: auto !important;
    }

    .menu-wrapper.active {
        right: 0 !important;
    }

    .menu-container {
        display: flex !important;
        flex-direction: column !important;
        align-items: stretch !important;
        justify-content: flex-start !important;
        background: transparent !important;
        box-shadow: none !important;
        padding: 0 !important;
        gap: 8px !important;
        overflow: visible !important;
        max-width: 100% !important;
        width: 100% !important;
    }

    .menu-item {
        width: 100% !important;
        position: relative !important;
    }

    .main-btn {
        width: 100% !important;
        text-align: left !important;
        padding: 12px 16px !important;
        font-size: 0.95rem !important;
        border-radius: 12px !important;
        background: rgba(216, 191, 235, 0.3) !important;
        color: #2d1b4e !important;
        box-sizing: border-box !important;
    }

    .sub-menu {
        position: relative !important;
        top: 0 !important;
        left: 0 !important;
        transform: none !important;
        width: 100% !important;
        margin-top: 4px !important;
        padding: 6px 8px 6px 12px !important;
        background: rgba(255, 255, 255, 0.5) !important;
        border-radius: 10px !important;
        box-shadow: none !important;
        display: none !important;
        visibility: visible !important;
        opacity: 1 !important;
        box-sizing: border-box !important;
    }

    .menu-item.active > .sub-menu {
        display: flex !important;
        flex-direction: column !important;
    }

    .sub-sub-menu {
        position: relative !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        margin: 4px 0 0 0 !important;
        transform: none !important;
        width: 100% !important;
        background: rgba(255, 255, 255, 0.6) !important;
        border: 1px solid #d4b0e8 !important;
        border-radius: 8px !important;
        box-shadow: none !important;
        display: none !important;
        visibility: visible !important;
        opacity: 1 !important;
        box-sizing: border-box !important;
    }

    .sub-item.active > .sub-sub-menu {
        display: flex !important;
        flex-direction: column !important;
    }

    .sub-btn, .sub-sub-btn {
        width: 100% !important;
        text-align: left !important;
        padding: 10px 12px !important;
        font-size: 0.88rem !important;
        box-sizing: border-box !important;
    }

    .sub-btn.has-sub::after {
        float: right;
    }
}

/* ============================================================
   響應式 - 菜單尺寸調整
   ============================================================ */
@media (max-width: 1024px) {
    .menu-container {
        gap: 4px 10px;
        padding: 6px 14px;
        border-radius: 40px;
    }

    .main-btn {
        padding: 6px 14px;
        font-size: 0.8rem;
        min-width: 50px;
    }

    .sub-menu {
        min-width: 120px;
        padding: 8px 10px;
        top: calc(100% + 8px);
    }

    .sub-btn {
        font-size: 0.78rem;
        padding: 5px 12px;
    }

    .sub-sub-menu {
        min-width: 100px;
        padding: 6px 8px;
        margin-left: 6px;
    }

    .sub-sub-btn {
        font-size: 0.72rem;
        padding: 4px 10px;
    }
}

@media (max-width: 768px) {
    .menu-wrapper {
        top: 80px;
        padding: 0 10px;
    }

    .menu-container {
        gap: 4px 6px;
        padding: 5px 12px;
        border-radius: 30px;
        flex-wrap: nowrap;
        overflow-x: auto;
        justify-content: flex-start;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .menu-container::-webkit-scrollbar {
        display: none;
    }

    .main-btn {
        padding: 5px 12px;
        font-size: 0.7rem;
        min-width: 44px;
        border-radius: 30px;
    }
}

@media (max-width: 480px) {
    .menu-wrapper {
        top: 65px;
        padding: 0 6px;
    }

    .menu-container {
        gap: 3px 4px;
        padding: 4px 8px;
        border-radius: 24px;
    }

    .main-btn {
        padding: 4px 8px;
        font-size: 0.6rem;
        min-width: 36px;
        border-radius: 24px;
    }
}

@media (max-width: 900px) {
    .menu-container {
        justify-content: flex-start;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .menu-container::-webkit-scrollbar {
        display: none;
    }
}