:root {
    --color-primary: #151941;      /* Deep Bluestone Navy */
    --color-accent: #D4AF37;       /* Warm Gold */
    --color-accent-hover: #B89047;
    --color-text-main: #2D3748;    /* Charcoal */
    --color-text-muted: #718096;
    --color-bg: #FFFFFF;
    --color-bg-alt: #F7FAFC;
    --color-border: #E2E8F0;
    --color-success: #38A169;
    --color-danger: #E53E3E;
    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Outfit', sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text-main);
    background-color: var(--color-bg);
    line-height: 1.5;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Top Utility Bar --- */
.top-bar {
    background-color: #0c0e27;
    color: rgba(255, 255, 255, 0.75);
    font-size: 12px;
    padding: 8px 0;
    font-weight: 500;
    letter-spacing: 0.3px;
}

.top-bar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.rate-ticker {
    display: flex;
    gap: 15px;
}

.rate-ticker span {
    color: var(--color-accent);
    font-weight: 600;
}

/* --- Main Navigation Header (Bluestone Premium UI) --- */
.main-header {
    background-color: #FFFFFF;
    color: var(--color-primary);
    position: sticky;
    top: 0;
    z-index: 999;
    box-shadow: 0 2px 10px rgba(0,0,0,0.06);
    border-bottom: 1px solid var(--color-border);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 75px;
    position: relative;
}

.logo {
    font-family: var(--font-serif);
    font-size: 30px;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 0.5px;
}

.logo span {
    color: var(--color-accent);
}

/* Desktop Menu Layout */
.nav-menu {
    display: flex;
    list-style: none;
    height: 100%;
    align-items: center;
}

.nav-item-wrapper {
    height: 100%;
    display: flex;
    align-items: center;
}

.nav-item {
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    padding: 27px 16px;
    color: var(--color-primary);
    cursor: pointer;
    border-bottom: 3px solid transparent;
}

.nav-item-wrapper:hover .nav-item {
    color: var(--color-accent-hover);
    border-bottom-color: var(--color-accent);
}

/* --- Bluestone Style Mega Menu Dropdown --- */
.mega-menu {
    position: absolute;
    top: 75px;
    left: 0;
    width: 100%;
    background-color: #FFFFFF;
    border-top: 1px solid var(--color-border);
    border-bottom: 3px solid var(--color-accent);
    box-shadow: 0 10px 20px rgba(0,0,0,0.08);
    display: none;
    z-index: 998;
    padding: 30px 40px;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.nav-item-wrapper:hover .mega-menu {
    display: grid;
}

.mega-column h3 {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-accent-hover);
    margin-bottom: 15px;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 6px;
}

.mega-column ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mega-column ul a {
    font-size: 14px;
    color: var(--color-text-main);
}

.mega-column ul a:hover {
    color: var(--color-accent);
    padding-left: 3px;
}

.mega-promo-box {
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.cart-icon-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.cart-badge {
    position: absolute;
    top: -8px;
    right: -10px;
    background-color: var(--color-primary);
    color: white;
    font-weight: 700;
    font-size: 10px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1.5px solid white;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.desktop-search {
    display: block;
    width: 260px;
}

@media (max-width: 991px) {
    .desktop-search {
        display: none;
    }
}
.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-primary);
}

.mobile-drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 18, 48, 0.4);
    z-index: 1000;
    display: none;
}

.mobile-drawer {
    position: fixed;
    top: 0;
    left: -320px; /* Hidden offscreen by default */
    width: 300px;
    height: 100%;
    background-color: #FFFFFF;
    z-index: 1001;
    transition: left 0.3s ease-out;
    box-shadow: 5px 0 15px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
}

.mobile-drawer.open {
    left: 0;
}

.mobile-drawer-header {
    background-color: var(--color-primary);
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--color-accent);
}

.mobile-drawer-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px 0;
}

/* Mobile Accordion Menu */
.mobile-menu-list {
    list-style: none;
}

.mobile-menu-item {
    border-bottom: 1px solid var(--color-border);
}

.mobile-menu-trigger {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 15px 20px;
    background: none;
    border: none;
    font-size: 15px;
    font-weight: 600;
    color: var(--color-primary);
    text-align: left;
    cursor: pointer;
}

.mobile-menu-content {
    background-color: var(--color-bg-alt);
    display: none;
    padding: 10px 20px;
    list-style: none;
}

.mobile-menu-content li {
    padding: 8px 0;
}

.mobile-menu-content li a {
    font-size: 14px;
    color: var(--color-text-main);
    display: block;
}

/* --- Hero Banner Slider --- */
.hero-section {
    position: relative;
    background-image: linear-gradient(to bottom, rgba(12, 14, 39, 0.4) 0%, rgba(112, 28, 28, 0.75) 100%), url('https://images.unsplash.com/photo-1573408301185-9146fe634ad0?auto=format&fit=crop&w=1600&q=80');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 100px 0;
    overflow: hidden;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 150px;
    background: linear-gradient(to bottom, rgba(112, 28, 28, 0) 0%, #701c1c 100%);
    pointer-events: none;
    z-index: 1;
}

.hero-inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 40px;
}

.hero-content h1 {
    font-size: 45px;
    line-height: 1.15;
    color: white;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 16px;
    color: rgba(255,255,255,0.85);
    margin-bottom: 30px;
}

/* --- Category grids --- */
.category-section {
    padding: 60px 0;
    background-color: var(--color-bg-alt);
}

.section-title {
    text-align: center;
    font-size: 30px;
    margin-bottom: 40px;
    position: relative;
    padding-bottom: 12px;
}

.section-title::after {
    content: '';
    position: absolute;
    width: 50px;
    height: 3px;
    background-color: var(--color-accent);
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
}

.category-card {
    background: white;
    border-radius: 8px;
    padding: 30px;
    text-align: center;
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.category-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
}

.category-card i, .category-card svg {
    color: var(--color-accent);
    margin-bottom: 15px;
}

/* --- Product grids --- */
.product-section {
    padding: 60px 0;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

.product-card {
    background: white;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    border-color: var(--color-accent);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
}

.product-image {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    background-color: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
}

.product-info {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.product-name {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 6px;
    height: 48px;
    overflow: hidden;
}

.product-price {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary);
    font-variant-numeric: tabular-nums;
}

.product-purity-tag {
    font-size: 11px;
    background-color: var(--color-bg-alt);
    color: var(--color-accent-hover);
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 600;
    width: max-content;
    margin-bottom: 12px;
    border: 1px solid var(--color-border);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    text-decoration: none;
}

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

.btn-primary:hover {
    opacity: 0.9;
}

.btn-accent {
    background-color: var(--color-accent);
    color: var(--color-primary);
}

.btn-accent:hover {
    background-color: var(--color-accent-hover);
}

.btn-sm {
    padding: 8px 14px;
    font-size: 13px;
    border-radius: 4px;
}

/* --- Footer --- */
footer {
    background-color: #0c0e27;
    color: rgba(255,255,255,0.7);
    padding: 60px 0 30px 0;
    border-top: 4px solid var(--color-accent);
}

.footer-policies {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding-bottom: 40px;
    margin-bottom: 40px;
}

.policy-item {
    text-align: center;
}

.policy-item i, .policy-item svg {
    color: var(--color-accent);
    margin-bottom: 15px;
}

.policy-item h4 {
    color: white;
    font-size: 16px;
    margin-bottom: 8px;
}

.policy-item p {
    font-size: 13px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    flex-wrap: wrap;
    gap: 20px;
}

/* --- Checkout Layouts --- */
.checkout-wrapper {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 40px;
    margin-top: 40px;
    align-items: start;
}

.form-card {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 30px;
    margin-bottom: 30px;
}

.form-title {
    font-size: 20px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 10px;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    outline: none;
    font-size: 15px;
}

.form-control:focus {
    border-color: var(--color-accent);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}

/* --- Responsive & Mobile Adaptability --- */
@media (max-width: 991px) {
    .nav-menu {
        display: none;
    }
    .mobile-nav-toggle {
        display: block;
    }
}

@media (max-width: 768px) {
    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-content h1 {
        font-size: 32px;
    }
    .checkout-wrapper {
        grid-template-columns: 1fr;
    }
}

/* --- Bluestone Masonry "Shop By Category" Section --- */
.bluestone-category-section {
    background: linear-gradient(to bottom, #701c1c 0%, #3a0808 100%);
    padding: 60px 0;
    color: white;
}

.bluestone-category-section .section-title {
    color: white;
    font-family: var(--font-serif);
    font-size: 32px;
    font-style: italic;
    font-weight: 500;
    margin-bottom: 40px;
    position: relative;
    padding-bottom: 12px;
    text-align: center;
}

.bluestone-category-section .section-title::after {
    content: '';
    position: absolute;
    width: 45px;
    height: 2px;
    background-color: var(--color-accent);
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.category-masonry {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    grid-auto-rows: 200px;
    gap: 15px;
    margin-top: 40px;
}

.masonry-card {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    background-color: #0c0e27;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}

.masonry-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.85;
    transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.3s ease;
}

.masonry-card:hover img {
    transform: scale(1.06);
    opacity: 1;
}

.masonry-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 15px 20px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0) 100%);
    color: white;
    font-weight: 500;
    font-size: 16px;
    letter-spacing: 0.5px;
    font-family: var(--font-sans);
}

/* Position Spans */
.card-rings {
    grid-column: 1 / 2;
    grid-row: 1 / 3; /* Tall (spans 2 rows) */
}

.card-earrings {
    grid-column: 2 / 4;
    grid-row: 1 / 2; /* Wide */
}

.card-pendants {
    grid-column: 4 / 5;
    grid-row: 1 / 2; /* Square */
}

.card-chains {
    grid-column: 5 / 6;
    grid-row: 1 / 2; /* Square */
}

.card-charms {
    grid-column: 2 / 3;
    grid-row: 2 / 3; /* Square */
}

.card-necklaces {
    grid-column: 3 / 5;
    grid-row: 2 / 3; /* Wide */
}

.card-coins {
    grid-column: 5 / 6;
    grid-row: 2 / 3; /* Square */
}

/* Mobile & Tablet Adaptations */
@media (max-width: 991px) {
    .category-masonry {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 160px;
        gap: 12px;
    }
    
    .card-rings {
        grid-column: 1 / 2;
        grid-row: 1 / 3;
    }
    .card-earrings {
        grid-column: 2 / 3;
        grid-row: 1 / 2;
    }
    .card-pendants {
        grid-column: 2 / 3;
        grid-row: 2 / 3;
    }
    .card-chains {
        grid-column: 1 / 2;
        grid-row: 3 / 4;
    }
    .card-charms {
        grid-column: 2 / 3;
        grid-row: 3 / 4;
    }
    .card-necklaces {
        grid-column: 1 / 3;
        grid-row: 4 / 5;
    }
    .card-coins {
        grid-column: 1 / 3;
        grid-row: 5 / 6;
    }
}