:root {
    /* theme */
    /* purple color */
    --clr-primary-5: #996fd6;
    --clr-primary-4: #a786db;
    --clr-primary-3: #b59ce0;
    --clr-primary-2: #c2b3e5;
    --clr-primary-1: #d0c9ea;
    /* grey color */        
    --clr-secondary-1: #454E88;
    --clr-secondary-2: #5B6EB5;
    --clr-secondary-3: #8AA2D0;
    --clr-secondary-4: #B0C2E0;
    --clr-secondary-5: #D0DAED;
    --clr-white: #fff;       
    --ff-primary:"Noto Sans HK", sans-serif;
    --transition: all 0.3s linear;
    --spacing: 0.25rem;
    --radius: 0.5rem;
    --light-shadow: 0 5px 15px rgba(0,0,0,0.1);
    --dark-shadow: 0 5px 15px rgba(0,0,0,0.2);
    }

  *{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
        /* border: 1px solid red; */
    }

html{
    scroll-behavior: smooth;
}

body{
    font-family: 'Poppins', sans-serif;
    background: #f8f9fa;
    line-height:1.5;
    /* font-size: 0.875rem; */
}

a,a:hover {
    text-decoration: none;
}

/* nav bar */
.navbar {
    margin-top: 0px; 
    opacity: 0.9;
    background: var(--clr-primary-1);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.8rem;
}

.nav-link {
    color: var(--clr-secondary-1);
    font-weight: 500;
    padding: 0.5rem 0.85rem !important;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--clr-primary-);
}

/* Consistent cart icon size for navbar */
.cart-icon-size {
    font-size: 2rem !important;
    line-height: 1;
    vertical-align: middle;
}

/* Ensure dropdown appears above other content */
.dropdown-menu {
    z-index: 1060 !important;
}

.dropdown-item {
    padding: 0.5rem 1rem;
    color: var(--clr-secondary-1);
}
.dropdown-item:hover {
    background-color: var(--clr-primary-1);
}

/* common */
.btn-custom {
    background-color: var(--clr-primary-3);
    border: none;
    color: white;
    transition: all 0.3s ease;
} 

.btn-custom:hover {
    background-color: var(--clr-primary-3);
    transform: translateY(-2px);
}

.btn-outline-custom:hover {
    color: white;
    background-color: var(--clr-primary-3);
    transform: translateY(-2px);
}

.btn-outline-custom {
    color: var(--clr-primary-3);
    background-color: transparent;
    background-image: none;
    border-color: var(--clr-primary-3);
}

.title-color {
    color: var(--clr-primary-4);
}
    
.logo-color {
    color: var(--clr-primary-3);
}

.page-item.active .page-link {
    background-color:var(--clr-primary-3);
    border-color: var(--clr-primary-3);
}

/* hero */
.hero-section {
    color: white;
    padding: 40px 0;
    margin-bottom: 20px;
    padding: 20px 20px;
    text-align: center;
    margin-top: 20px;
    position: relative;
    overflow: hidden;
}

.hero-container {
    position: relative;
    z-index: 2;
}

.hero-image {
    width: 85%;
    margin: 0 auto;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--dark-shadow);
    position: relative;
}

.hero-image img {
    width: 50%;
    height: auto;
    display: block;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    padding: 20px;
}

/* Carousel Enhancements */
.carousel {
    margin-bottom: 2rem;
    overflow: hidden;
    box-shadow: var(--dark-shadow);
    background: #fff;
}
.carousel-inner {
    height: 400px;
}
.carousel-item img {
    object-fit: cover;
    width: 100%;
    height: 400px;
    transition: transform 0.5s;
}
.carousel-item img:hover {
    transform: scale(1.02);
}
.carousel-indicators [data-bs-target] {
    background-color: var(--clr-primary-3);
}
.carousel-control-prev-icon,
.carousel-control-next-icon {
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
    background-color: rgba(255,255,255,0.7);
    border-radius: 50%;
}
.carousel-control-prev,
.carousel-control-next {
    width: 5%;
}

/* Optional: Overlay gradient for carousel images (if you want to add text later) */
.carousel-item::after {
    content: '';
    display: block;
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.15) 0%, rgba(0,0,0,0.25) 100%);
    pointer-events: none;
}

/* Product Cards Container */

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    padding: 2rem 0;
}

/* Product Card Styles */

.product-card {
    background: var(--clr-white);
    border-radius: var(--radius);
    box-shadow: var(--light-shadow);
    transition: var(--transition);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 420px;
    height: 100%;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--dark-shadow);
}

.product-card img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    padding: 1rem;
    background: var(--clr-white);
}

.product-card .card-body {
    padding: 1.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    justify-content: space-between;
}

.card-actions {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    align-items: center;
}

/* product detail */
.product-detail-img {
    max-height: 400px;
    object-fit: contain;
    border-radius: var(--radius);
    box-shadow: var(--light-shadow);
}

.product-info {
    background: var(--clr-white);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--light-shadow);
}

/* search products */
.search-container {
    margin: 20px 0;
    display: flex;
    justify-content: center;
}

.search-input {
    padding: 10px;
    width: 300px;
    border: 1px solid #ddd;
    border-radius: 4px 0 0 4px;
}

.search-button {
    padding: 10px 15px;
    background-color: var(--clr-primary-4);
    color: white;
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
}

.search-button:hover {
    background-color: var(--clr-primary-3);
}

/* video products */
.video-theme {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--light-shadow);
    background: var(--clr-primary-1, #f8f9fa);
}
.video-theme-box {
    max-width: 800px;
    margin: 0 auto;
    background: var(--clr-primary-1, #f8f9fa);
    padding: 1rem;
    border-radius: var(--radius);
    box-shadow: var(--light-shadow);
}
.video-caption {
    color: var(--clr-secondary-1, #454E88);
    font-size: 1.1rem;
}



/* ===================== Responsive adjustments ===================== */
@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(3, minmax(200px, 1fr)); /* 3 columns for tablets */
    }
}

@media (max-width: 768px) {
    .carousel-inner,
    .carousel-item img {
        height: 220px;
    }
    .search-container {
        margin-top: 0;
    }
    .hero-image {
        width: 90%;
    }
    .hero-overlay h1 {
        font-size: 1.8rem;
    }
    .hero-overlay p {
        font-size: 1rem;
    }
    .products-grid {
        grid-template-columns: repeat(2, minmax(200px, 1fr));
    }
    .product-card {
        min-height: 360px;
    }
    .product-card img {
        height: 140px;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .carousel-inner,
    .carousel-item img {
        height: 140px;
    }
    .navbar-collapse {
        background-color: var(--clr-primary-1);
        padding: 1rem;
        border-radius: 0 0 10px 10px;
        box-shadow: var(--dark-shadow);
        z-index: 1070; /* Higher than dropdown */
    }
    .navbar-nav {
        text-align: center;
    }
    .nav-item {
        margin: 0.5rem 0;
        position: relative; /* Needed for dropdown positioning */
    }
    /* Fix dropdown menu in mobile view */
    .dropdown-menu {
        position: static !important;
        float: none;
        width: 100%;
        margin-top: 0.25rem;
        border: none;
        box-shadow: none;
    }
    .dropdown-item {
        padding: 0.5rem 1rem;
        color: var(--clr-secondary-1);
    }
    .dropdown-item:hover {
        background-color: var(--clr-primary-1);
    }
    .products-grid {
        grid-template-columns: 1fr; /* 1 column for mobile */
    }
    .hero-image {
        width: 95%;
    }
    .hero-overlay h1 {
    font-size: 1.1rem;
    line-height: 1.1;
    word-break: break-word;
    }
    .hero-overlay p {
    font-size: 0.8rem;
    margin-bottom: 0.9rem;
    }
    .hero-overlay .btn {
    font-size: 0.8rem;
    padding: 0.3rem 0.5rem;
    width: 100%;
    max-width: 100px;
    margin: 0 auto;
    display: block;
    }
    .hero-overlay > div {
    padding: 0.5rem 0.5rem;
    }
    /* Fix navbar flex wrapping on mobile so cart icon and hamburger stay in one line */
    .navbar .d-flex.align-items-center {
        flex-wrap: nowrap !important;
    }
    .navbar .d-flex.align-items-center > * {
        margin-right: 0.5rem;
    }
}