:root {
    --gold: hsl(45, 100%, 50%);
    --silver: hsl(0, 0%, 75%);
    --navy: hsl(210, 29%, 24%);
    --champagne: hsl(44, 56%, 85%);
    --background: hsl(0, 0%, 100%);
    --foreground: hsl(20, 14.3%, 4.1%);
    --muted: hsl(60, 4.8%, 95.9%);
    --border: hsl(20, 5.9%, 90%);
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--foreground);
    background-color: var(--background);
}

/* Typography */
.brand-text {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--navy);
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-size: 2.5rem;
    color: var(--navy);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.25rem;
    color: hsl(25, 5.3%, 44.7%);
    max-width: 800px;
    margin: 0 auto;
}

/* Colors */
.text-gold {
    color: var(--gold) !important;
}

.text-navy {
    color: var(--navy) !important;
}

.bg-gold {
    background-color: var(--gold) !important;
}

.bg-navy {
    background-color: var(--navy) !important;
}

/* Navigation */
.navbar {
    transition: all 0.3s ease;
    padding: 1rem 0;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
}

.navbar-nav .nav-link {
    font-weight: 500;
    color: hsl(25, 5.3%, 44.7%) !important;
    transition: color 0.3s ease;
    margin: 0 0.5rem;
}

.navbar-nav .nav-link:hover {
    color: var(--gold) !important;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--navy) 0%, hsl(210, 29%, 32%) 100%);
    color: white;
    padding: 120px 0;
    text-align: center;
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.hero-tagline {
    font-size: 2rem;
    font-weight: 300;
    color: var(--gold);
    margin-bottom: 2rem;
    background: linear-gradient(45deg, var(--gold), hsl(45, 100%, 70%));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: hsl(0, 0%, 85%);
    margin-bottom: 3rem;
    line-height: 1.7;
}

.hero-buttons .btn {
    padding: 1rem 2rem;
    font-weight: 600;
    font-size: 1.1rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--gold);
    border-color: var(--gold);
    color: var(--navy);
}

.btn-primary:hover {
    background-color: hsl(45, 100%, 45%);
    border-color: hsl(45, 100%, 45%);
    transform: translateY(-2px);
}

.btn-outline-light:hover {
    background-color: var(--gold);
    border-color: var(--gold);
    color: var(--navy);
}

/* Collection Cards */
.collection-card {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.collection-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.collection-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 2rem;
}

.collection-icon.diamonds {
    background: linear-gradient(135deg, hsl(210, 100%, 90%) 0%, hsl(210, 100%, 95%) 100%);
    color: hsl(210, 100%, 40%);
}

.collection-icon.rubies {
    background: linear-gradient(135deg, hsl(0, 100%, 90%) 0%, hsl(0, 100%, 95%) 100%);
    color: hsl(0, 100%, 40%);
}

.collection-icon.emeralds {
    background: linear-gradient(135deg, hsl(120, 100%, 90%) 0%, hsl(120, 100%, 95%) 100%);
    color: hsl(120, 100%, 25%);
}

.collection-icon.sapphires {
    background: linear-gradient(135deg, hsl(240, 100%, 90%) 0%, hsl(240, 100%, 95%) 100%);
    color: hsl(240, 100%, 40%);
}

.collection-card h3 {
    font-family: 'Playfair Display', serif;
    font-weight: 600;
    color: var(--navy);
    margin: 0;
}

/* Gem Cards */
.gem-card {
    background: white;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    height: 100%;
}

.gem-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.gem-image-container {
    position: relative;
    overflow: hidden;
}

.gem-main-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.gem-main-image:hover {
    transform: scale(1.05);
}

.gem-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: white;
}

.gem-badge.premium {
    background-color: hsl(210, 100%, 50%);
}

.gem-badge.exclusive {
    background-color: var(--gold);
    color: var(--navy);
}

.gem-badge.rare {
    background-color: hsl(0, 100%, 50%);
}

.gem-badge.featured {
    background-color: hsl(120, 100%, 30%);
}

.gem-badge.royal {
    background-color: hsl(240, 100%, 30%);
}

.gem-content {
    padding: 1.5rem;
}

.gem-title {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 0.5rem;
}

.gem-specs {
    color: hsl(25, 5.3%, 44.7%);
    margin-bottom: 1rem;
}

/* Gallery Thumbnails */
.gallery-thumbnails {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.gallery-thumb {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 0.5rem;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.gallery-thumb:hover,
.gallery-thumb.active {
    border-color: var(--gold);
    transform: scale(1.05);
}

/* Video Section */
.video-section {
    margin-bottom: 1rem;
}

.video-placeholder {
    background-color: hsl(60, 4.8%, 95.9%);
    border-radius: 0.5rem;
    padding: 1rem;
    text-align: center;
}

.video-placeholder i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.video-placeholder p {
    margin-bottom: 0.5rem;
    color: hsl(25, 5.3%, 44.7%);
}

/* Gem Footer */
.gem-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.gem-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gold);
}

/* Contact Section */
.contact-section {
    background: linear-gradient(135deg, var(--navy) 0%, hsl(210, 29%, 32%) 100%);
    color: white;
}

.contact-card {
    background: hsl(210, 29%, 16%);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    height: 100%;
}

.contact-card:hover {
    background: hsl(210, 29%, 20%);
    transform: translateY(-5px);
}

.contact-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background-color: var(--gold);
    color: var(--navy);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
}

.contact-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

.contact-link {
    color: var(--gold);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.125rem;
}

.contact-link:hover {
    color: hsl(45, 100%, 70%);
}

.contact-hours {
    color: hsl(0, 0%, 70%);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.address-card {
    background: hsl(210, 29%, 16%);
    border-radius: 1rem;
    padding: 2rem;
}

.address-card h3 {
    color: white;
    font-size: 1.5rem;
    font-weight: 600;
}

/* Footer */
.footer-brand {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

.footer-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: white;
    margin-bottom: 1rem;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: hsl(0, 0%, 70%);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--gold);
}

.footer-services {
    list-style: none;
    padding: 0;
}

.footer-services li {
    color: hsl(0, 0%, 70%);
    margin-bottom: 0.5rem;
}

.footer-contact p {
    color: hsl(0, 0%, 70%);
    margin-bottom: 0.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-link {
    color: hsl(0, 0%, 70%);
    font-size: 1.25rem;
    transition: color 0.3s ease;
}

.social-link:hover {
    color: var(--gold);
}

/* Lightbox Modal */
.modal-content {
    border: none;
}

.modal-body img {
    max-height: 70vh;
    object-fit: contain;
}

#lightbox-thumbs .gallery-thumb {
    width: 50px;
    height: 50px;
}

.circle-icon {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover; /* keeps image proportional */
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-tagline {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .gem-card {
        margin-bottom: 2rem;
    }
    
    .gallery-thumbnails {
        justify-content: center;
    }
    
    .gem-footer {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 576px) {
    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin-bottom: 1rem;
    }
    
    .collection-card {
        margin-bottom: 1rem;
    }
    
    .gallery-thumbnails {
        flex-wrap: wrap;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Loading animation */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.gem-card {
    animation: fadeIn 0.6s ease-out;
}

/* Focus states for accessibility */
.btn:focus,
.nav-link:focus,
.gallery-thumb:focus {
    outline: 2px solid var(--gold);
    outline-offset: 2px;
}