/********** Template CSS (Original) **********/

.back-to-top {
    position: fixed;
    display: none;
    right: 45px;
    bottom: 45px;
    z-index: 99;
}

/*** Spinner ***/
#spinner {
    opacity: 0;
    visibility: hidden;
    transition: opacity .5s ease-out, visibility 0s linear .5s;
    z-index: 99999;
}

    #spinner.show {
        transition: opacity .5s ease-out, visibility 0s linear 0s;
        visibility: visible;
        opacity: 1;
    }

/*** Button ***/
.btn {
    font-weight: 600;
    transition: .5s;
    border-radius: 50px;
}

.btn-square {
    width: 38px;
    height: 38px;
}

.btn-sm-square {
    width: 32px;
    height: 32px;
}

.btn-lg-square {
    width: 48px;
    height: 48px;
}

.btn-square,
.btn-sm-square,
.btn-lg-square {
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: inherit;
}

.btn-primary {
    color: var(--bs-white);
}

/*** Navbar ***/
.navbar {
    position: absolute;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 9;
    transition: .5s;
}

    .navbar .navbar-nav .nav-link {
        margin-right: 25px;
        padding: 40px 0;
        color: var(--bs-white);
        font-size: 17px;
        text-transform: uppercase;
        outline: none;
        transition: .5s;
    }

        .navbar .navbar-nav .nav-link:hover,
        .navbar .navbar-nav .nav-link.active {
            color: var(--bs-primary);
        }

@media (max-width: 991.98px) {
    .navbar .navbar-nav .nav-link,
    .navbar.bg-dark .navbar-nav .nav-link {
        margin-right: 0;
        padding: 10px 0;
    }

    .navbar .navbar-nav {
        margin-top: 8px;
        border-top: 1px solid var(--bs-light);
    }
}

@media (min-width: 992px) {
    .navbar.bg-dark .navbar-nav .nav-link {
        padding: 20px 0;
    }

    .navbar .nav-item .dropdown-menu {
        display: block;
        border: none;
        margin-top: 0;
        top: 150%;
        opacity: 0;
        visibility: hidden;
        transition: .5s;
    }

    .navbar .nav-item:hover .dropdown-menu {
        top: 100%;
        visibility: visible;
        transition: .5s;
        opacity: 1;
    }
}

.navbar .dropdown-toggle::after {
    border: none;
    content: "\f107";
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    vertical-align: middle;
    margin-left: 8px;
}

/*** Header ***/
.carousel-caption {
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding-top: 100px;
    background: rgba(0, 0, 0, .7);
    z-index: 1;
}

.carousel-control-prev,
.carousel-control-next {
    width: 10%;
}

.carousel-control-prev-icon,
.carousel-control-next-icon {
    width: 3rem;
    height: 3rem;
}

@media (max-width: 768px) {
    #header-carousel .carousel-item {
        position: relative;
        min-height: 550px;
    }

        #header-carousel .carousel-item img {
            position: absolute;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
}

.page-header {
    padding-top: 200px;
    background: linear-gradient(rgba(0, 0, 0, .7), rgba(0, 0, 0, .7)), url(../img/carousel-1.jpg) top center no-repeat;
    background-size: cover;
}

    .page-header .breadcrumb-item + .breadcrumb-item::before {
        color: var(--bs-white);
    }

/*** Title ***/
.title {
    margin-bottom: 2rem;
}

    .title .title-left,
    .title .title-center,
    .title .title-right {
        display: inline-block;
        text-transform: uppercase;
        overflow: hidden;
    }

    .title .title-center {
        text-align: center;
    }

    .title .title-right {
        text-align: right;
    }

        .title .title-left h5,
        .title .title-center h5,
        .title .title-right h5 {
            position: relative;
            display: inline-block;
            font-size: 18px;
            font-weight: 300;
        }

            .title .title-left h5::after,
            .title .title-center h5::before,
            .title .title-center h5::after,
            .title .title-right h5::before {
                position: absolute;
                content: "";
                width: 500%;
                height: 0;
                top: 9px;
                border-bottom: 1px solid var(--bs-white);
            }

            .title .title-left h5::after,
            .title .title-center h5::after {
                left: calc(100% + 15px);
            }

            .title .title-right h5::before,
            .title .title-center h5::before {
                right: calc(100% + 15px);
            }

        .title .title-left h1,
        .title .title-center h1,
        .title .title-right h1 {
            border-bottom: 1px solid var(--bs-white);
        }

/*** Service ***/
.service-item {
    position: relative;
    margin-top: 2.5rem;
    overflow: hidden;
}

    .service-item .service-img {
        position: relative;
        display: inline-block;
    }

        .service-item .service-img::before {
            position: absolute;
            content: "";
            width: calc(100% - 12rem);
            height: calc(100% - 12rem);
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            border: 3rem solid rgba(0, 0, 0, .5);
            border-radius: 300px;
            z-index: 1;
        }

    .service-item.service-item-left {
        border-radius: 500px 0 0 500px;
        background: linear-gradient(to right, var(--bs-secondary), var(--bs-dark));
    }

    .service-item.service-item-right {
        border-radius: 0 500px 500px 0;
        background: linear-gradient(to left, var(--bs-secondary), var(--bs-dark));
    }

@media (max-width: 767.98px) {
    .service-item.service-item-left,
    .service-item.service-item-right {
        border-radius: 500px 500px 0 0;
        background: linear-gradient(to bottom, var(--bs-secondary), var(--bs-dark));
        text-align: center;
    }
}

/*** Team ***/
.team-item {
    position: relative;
}

    .team-item .team-name {
        position: absolute;
        width: 100%;
        height: 60px;
        left: 0;
        bottom: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(0, 0, 0, .7);
    }

    .team-item .team-body {
        position: relative;
        overflow: hidden;
    }

        .team-item .team-body .team-before,
        .team-item .team-body .team-after {
            position: absolute;
            content: "";
            width: 0;
            height: calc(100% - 60px);
            top: 0;
            left: 0;
            background: rgba(0, 0, 0, .7);
            display: flex;
            flex-direction: column;
            justify-content: center;
            transition: .5s;
        }

        .team-item .team-body .team-after {
            left: auto;
            right: 0;
        }

        .team-item .team-body .team-before {
            text-align: right;
        }

    .team-item:hover .team-body .team-before,
    .team-item:hover .team-body .team-after {
        width: 50%;
    }

    .team-item .team-body .team-before span,
    .team-item .team-body .team-after span {
        margin: 5px;
        color: var(--bs-white);
        opacity: 0;
        transition: .5s;
    }

    .team-item:hover .team-body .team-before span,
    .team-item:hover .team-body .team-after span {
        opacity: 1;
        transition-delay: .2s;
    }

/*** Testimonial ***/
.testimonial-carousel {
    max-width: 700px;
    margin: 0 auto;
}

    .testimonial-carousel .owl-dots {
        margin-top: 35px;
        height: 100px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

        .testimonial-carousel .owl-dots .owl-dot {
            width: 60px;
            height: 60px;
            margin: 0 5px;
            padding: 10px;
            background: var(--bs-dark);
            border-radius: 100px;
            transition: .5s;
        }

            .testimonial-carousel .owl-dots .owl-dot.active {
                width: 100px;
                height: 100px;
            }

            .testimonial-carousel .owl-dots .owl-dot img {
                opacity: .1;
                transition: .5s;
                border-radius: 100px;
            }

            .testimonial-carousel .owl-dots .owl-dot.active img {
                opacity: 1;
            }

/*** Footer ***/
@keyframes footerAnimatedBg {
    0% {
        background-position: 0 0;
    }

    100% {
        background-position: -1000px 0;
    }
}

.footer {
    background-image: url(../img/footer-bg.png);
    background-position: 0px 0px;
    background-repeat: repeat-x;
    animation: footerAnimatedBg 50s linear infinite;
}

/* =========================================
   CUSTOM STYLES (Integrated from HTML files)
   ========================================= */

/* --- From index.html (Navbar & Form overrides) --- */
.navbar .dropdown-menu {
    margin-top: 0 !important;
    top: 100% !important;
    border-radius: 0 0 5px 5px;
    background-color: #ffffff;
    border: 1px solid #eee;
}

.navbar .nav-item.dropdown:hover .dropdown-menu {
    display: block;
}

.form-control-dark {
    background-color: #191C24 !important;
    border: 1px solid #333;
    color: #fff !important;
}

    .form-control-dark:focus {
        background-color: #000 !important;
        border-color: var(--primary);
        box-shadow: none;
    }

    .form-control-dark::placeholder {
        color: #6c757d;
    }

/* --- From music-api.html (Lyrics & Album) --- */
/* 讓歌詞區塊可以捲動 */
#lyrics-content {
    max-height: 400px;
    overflow-y: auto;
    white-space: pre-line; /* 保留歌詞換行 */
    line-height: 1.8;
    font-size: 1.1rem;
}

    /* 自定義捲軸樣式 */
    #lyrics-content::-webkit-scrollbar {
        width: 8px;
    }

    #lyrics-content::-webkit-scrollbar-thumb {
        background-color: var(--primary);
        border-radius: 4px;
    }

/* 封面圖片樣式 */
#album-cover {
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    transition: transform 0.3s;
}

    #album-cover:hover {
        transform: scale(1.05);
    }

/* --- Global Utilities (Cleaned from inline styles) --- */
/* 用於 ai-chat, music-api, world-data 等頁面，避開 fixed navbar */
.page-padding-top {
    padding-top: 120px !important;
}