/* ========================================
   Component Styles
   ======================================== */

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(20px);
    transition: var(--transition-normal);
}

.nav.scrolled {
    background: rgba(10, 22, 40, 0.98);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-sm) var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0.75rem 1rem;
    }
    
    .nav-logo {
        font-size: 1.25rem;
    }
    
    .logo-icon {
        font-size: 1.5rem;
    }
    
    .brand-subtitle {
        display: none;
    }
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-soft-white);
}

.logo-icon {
    font-size: 1.75rem;
}

.logo-text {
    letter-spacing: 0.05em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--color-soft-white);
    opacity: 0.8;
    transition: var(--transition-normal);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-champagne-gold);
    transition: var(--transition-normal);
}

.nav-link:hover {
    opacity: 1;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 5px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-soft-white);
    transition: var(--transition-normal);
}

@media (max-width: 1024px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        max-width: 320px;
        height: 100vh;
        flex-direction: column;
        background: var(--color-dark-navy);
        padding: var(--space-3xl) var(--space-lg);
        gap: var(--space-sm);
        transition: var(--transition-normal);
        overflow-y: auto;
        z-index: 1000;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-menu .nav-link {
        font-size: 1.125rem;
        padding: 0.75rem 0;
        border-bottom: 1px solid rgba(201, 169, 98, 0.2);
    }
    
    .nav-actions {
        flex-direction: column;
        gap: 0.75rem;
        margin-top: var(--space-md);
    }
    
    .nav-actions .btn {
        width: 100%;
        text-align: center;
        justify-content: center;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    /* Overlay when menu is open */
    body.menu-open::before {
        content: '';
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.6);
        z-index: 999;
    }
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-dark-navy);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(201, 169, 98, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(201, 169, 98, 0.05) 0%, transparent 40%),
        linear-gradient(180deg, var(--color-dark-navy) 0%, var(--color-navy) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: var(--space-xl);
    max-width: 900px;
}

.hero-tagline {
    font-family: var(--font-heading);
    font-size: 1rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-champagne-gold);
    margin-bottom: var(--space-md);
    animation: fadeInUp 0.8s ease forwards;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    color: var(--color-soft-white);
    margin-bottom: var(--space-lg);
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-soft-white);
    opacity: 0.8;
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    animation: fadeInUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.6s forwards;
    opacity: 0;
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-soft-white);
    opacity: 0.5;
    animation: fadeIn 1s ease 1s forwards;
}

.scroll-indicator {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-champagne-gold), transparent);
    animation: scrollPulse 2s ease infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(1); }
    50% { opacity: 1; transform: scaleY(1.2); }
}

/* Products Grid */
.products {
    background: var(--color-cream);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-lg);
}

.product-card {
    background: var(--color-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    position: relative;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.product-badge {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    background: var(--color-champagne-gold);
    color: var(--color-dark-navy);
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.25rem 0.75rem;
    border-radius: 2px;
    z-index: 1;
}

.product-image {
    height: 280px;
    background: linear-gradient(135deg, var(--color-navy-light), var(--color-navy));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
}

.product-content {
    padding: var(--space-lg);
}

.product-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-champagne-gold);
    margin-bottom: var(--space-xs);
}

.product-name {
    font-size: 1.5rem;
    margin-bottom: var(--space-xs);
}

.product-name-cn {
    font-size: 1rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.product-desc {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.7;
}

.product-benefits {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
}

.benefit-tag {
    font-size: 0.75rem;
    background: var(--color-cream);
    padding: 0.25rem 0.5rem;
    border-radius: 2px;
    color: var(--color-text-secondary);
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.product-price {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-dark-navy);
}

.product-price span {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.add-to-cart {
    background: var(--color-dark-navy);
    color: var(--color-soft-white);
    padding: 0.75rem 1.25rem;
    border-radius: 2px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition-normal);
}

.add-to-cart:hover {
    background: var(--color-navy-light);
}

/* Stacks Section */
.stacks {
    background: var(--color-dark-navy);
    color: var(--color-soft-white);
}

.stacks .section-tagline,
.stacks .section-title,
.stacks .section-desc {
    color: var(--color-soft-white);
}

.stacks .section-desc {
    opacity: 0.8;
}

.stacks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.stack-card {
    background: var(--color-navy);
    border-radius: 8px;
    padding: var(--space-xl);
    position: relative;
    border: 1px solid rgba(201, 169, 98, 0.2);
    transition: var(--transition-normal);
}

.stack-card:hover {
    border-color: rgba(201, 169, 98, 0.5);
    transform: translateY(-4px);
}

.stack-card-premium {
    background: linear-gradient(135deg, var(--color-navy), var(--color-navy-light));
    border-color: var(--color-champagne-gold);
}

.stack-badge {
    position: absolute;
    top: calc(var(--space-md) * -1);
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-champagne-gold);
    color: var(--color-dark-navy);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 2px;
    white-space: nowrap;
}

.stack-name {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
    color: var(--color-soft-white);
}

.stack-desc {
    font-size: 0.9375rem;
    opacity: 0.8;
    margin-bottom: var(--space-md);
}

.stack-includes {
    margin-bottom: var(--space-lg);
}

.stack-includes li {
    font-size: 0.875rem;
    padding: var(--space-xs) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.stack-includes li::before {
    content: '✓';
    color: var(--color-champagne-gold);
}

.stack-price {
    margin-bottom: var(--space-lg);
}

.price-original {
    font-size: 1rem;
    opacity: 0.6;
    text-decoration: line-through;
    margin-right: var(--space-sm);
}

.price-sale {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--color-champagne-gold);
}

.stack-card .btn {
    width: 100%;
}

/* Science / Articles */
.science {
    background: var(--color-soft-white);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-lg);
}

.article-card {
    background: var(--color-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.article-card:hover {
    box-shadow: var(--shadow-md);
}

.article-image {
    height: 200px;
    background: linear-gradient(135deg, var(--color-navy), var(--color-champagne-gold));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.article-content {
    padding: var(--space-lg);
}

.article-date {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-xs);
}

.article-title {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
    line-height: 1.4;
}

.article-excerpt {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.article-link {
    font-size: 0.875rem;
    color: var(--color-champagne-gold);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
}

.article-link:hover {
    gap: var(--space-sm);
}

.articles-cta {
    text-align: center;
    margin-top: var(--space-xl);
}

/* About Section */
.about {
    background: var(--color-cream);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-text .section-tagline {
    text-align: left;
}

.about-text .section-title {
    text-align: left;
    margin-bottom: var(--space-md);
}

.about-text p {
    color: var(--color-text-secondary);
    font-size: 1.0625rem;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.about-feature {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

.feature-icon {
    font-size: 1.25rem;
}

@media (max-width: 768px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
}

/* Quiz Section */
.quiz {
    background: var(--color-dark-navy);
    color: var(--color-soft-white);
}

.quiz .section-tagline,
.quiz .section-title,
.quiz .section-desc {
    color: var(--color-soft-white);
}

.quiz-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.quiz-text .section-tagline {
    text-align: left;
}

.quiz-text .section-title {
    text-align: left;
}

.quiz-text p {
    opacity: 0.8;
}

.quiz-benefits {
    margin: var(--space-lg) 0;
}

.quiz-benefits li {
    font-size: 1rem;
    padding: var(--space-xs) 0;
    color: var(--color-champagne-gold);
}

.quiz-image .image-placeholder {
    min-height: 400px;
}

@media (max-width: 768px) {
    .quiz-content {
        grid-template-columns: 1fr;
    }
}

/* Newsletter Section */
.newsletter {
    background: var(--color-navy);
    color: var(--color-soft-white);
}

.newsletter-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.newsletter-title {
    color: var(--color-champagne-gold);
    margin-bottom: var(--space-sm);
}

.newsletter-desc {
    opacity: 0.8;
    margin-bottom: var(--space-lg);
}

.newsletter-form {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.newsletter-input {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-soft-white);
    border-radius: 2px;
}

.newsletter-input::placeholder {
    color: var(--color-text-muted);
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--color-champagne-gold);
}

.newsletter-note {
    font-size: 0.875rem;
    opacity: 0.6;
    margin-bottom: var(--space-xl);
}

.newsletter-archive {
    text-align: left;
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.newsletter-archive h4 {
    font-size: 1rem;
    color: var(--color-champagne-gold);
    margin-bottom: var(--space-md);
}

.archive-list li {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.archive-list a {
    font-size: 0.9375rem;
    opacity: 0.8;
    transition: var(--transition-normal);
}

.archive-list a:hover {
    opacity: 1;
    color: var(--color-champagne-gold);
}

/* Footer */
.footer {
    background: var(--color-dark-navy);
    color: var(--color-soft-white);
    padding: var(--space-3xl) 0 var(--space-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
}

.footer-brand p {
    font-size: 0.9375rem;
    opacity: 0.7;
    margin-bottom: var(--space-md);
}

.footer-social {
    display: flex;
    gap: var(--space-sm);
}

.footer-social a {
    font-size: 1.25rem;
    opacity: 0.7;
    transition: var(--transition-normal);
}

.footer-social a:hover {
    opacity: 1;
}

.footer-links h4 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
    color: var(--color-champagne-gold);
}

.footer-links ul li {
    margin-bottom: var(--space-xs);
}

.footer-links a {
    font-size: 0.9375rem;
    opacity: 0.7;
    transition: var(--transition-normal);
}

.footer-links a:hover {
    opacity: 1;
}

.footer-bottom {
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.875rem;
    opacity: 0.6;
}

.footer-disclaimer {
    font-size: 0.75rem !important;
    margin-top: var(--space-sm);
    opacity: 0.4 !important;
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-brand {
        grid-column: 1 / -1;
    }
}

/* Cart Sidebar */
.cart-sidebar {
    position: fixed;
    top: 0;
    right: -400px;
    width: 400px;
    height: 100vh;
    background: var(--color-white);
    z-index: 2000;
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.cart-sidebar.active {
    right: 0;
}

.cart-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cart-header h3 {
    font-size: 1.25rem;
}

.cart-close {
    font-size: 1.5rem;
    color: var(--color-text-muted);
    transition: var(--transition-normal);
}

.cart-close:hover {
    color: var(--color-text-primary);
}

.cart-items {
    flex: 1;
    padding: var(--space-lg);
    overflow-y: auto;
}

.cart-empty {
    text-align: center;
    color: var(--color-text-muted);
    padding: var(--space-xl) 0;
}

.cart-footer {
    padding: var(--space-lg);
    border-top: 1px solid var(--color-border);
    background: var(--color-cream);
}

.cart-total {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-heading);
    font-size: 1.25rem;
    margin-bottom: var(--space-md);
}

.cart-note {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-align: center;
    margin-top: var(--space-sm);
}

.cart-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 22, 40, 0.5);
    z-index: 1999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.cart-overlay.active {
    opacity: 1;
    visibility: visible;
}

@media (max-width: 480px) {
    .cart-sidebar {
        width: 100%;
        right: -100%;
    }
}
/* Enhanced Quiz Styles */
.quiz-intro {
    text-align: center;
    padding: var(--space-xl) var(--space-lg);
    background: linear-gradient(135deg, var(--color-navy), var(--color-navy-light));
    border-radius: 8px;
    color: var(--color-soft-white);
}

.quiz-intro h3 {
    color: var(--color-champagne-gold);
    margin-bottom: var(--space-sm);
}

.quiz-intro p {
    opacity: 0.9;
    margin-bottom: var(--space-md);
}

.quiz-meta {
    font-size: 0.875rem;
    opacity: 0.7 !important;
    margin-bottom: var(--space-lg) !important;
}

.quiz-progress-bar {
    height: 4px;
    background: var(--color-border);
    border-radius: 2px;
    margin-bottom: var(--space-lg);
    overflow: hidden;
}

.quiz-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-champagne-gold), var(--color-gold-light));
    transition: width 0.3s ease;
}

.quiz-question-container {
    padding: var(--space-lg);
}

.quiz-category {
    display: inline-block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-champagne-gold);
    background: rgba(201, 169, 98, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 2px;
    margin-bottom: var(--space-md);
}

.quiz-question-text {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.quiz-question-desc {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.quiz-option-btn {
    display: flex;
    align-items: center;
    padding: var(--space-md);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    text-align: left;
    transition: all 0.3s ease;
    cursor: pointer;
}

.quiz-option-btn:hover {
    border-color: var(--color-champagne-gold);
    background: var(--color-cream);
    transform: translateX(8px);
}

.quiz-option-btn .option-label {
    font-size: 1rem;
    color: var(--color-text-primary);
}

.quiz-back-btn {
    margin-top: var(--space-lg);
    color: var(--color-text-muted);
    font-size: 0.875rem;
    background: none;
    border: none;
    cursor: pointer;
}

.quiz-back-btn:hover {
    color: var(--color-champagne-gold);
}

/* Results */
.quiz-results {
    padding: var(--space-lg);
    background: var(--color-white);
    border-radius: 8px;
    box-shadow: var(--shadow-md);
}

.results-header {
    text-align: center;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.results-header h3 {
    color: var(--color-dark-navy);
    margin-bottom: var(--space-sm);
}

.results-header p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.tier-badge {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-sm) var(--space-lg);
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.875rem;
}

.tier-badge.bronze {
    background: linear-gradient(135deg, #cd7f32, #8b4513);
    color: white;
}

.tier-badge.silver {
    background: linear-gradient(135deg, #c0c0c0, #808080);
    color: white;
}

.tier-badge.gold {
    background: linear-gradient(135deg, var(--color-champagne-gold), var(--color-gold-dark));
    color: var(--color-dark-navy);
}

.tier-badge.platinum {
    background: linear-gradient(135deg, #e5e4e2, #a0a0a0);
    color: var(--color-dark-navy);
}

.tier-badge span {
    font-size: 0.75rem;
    font-weight: 400;
    opacity: 0.9;
}

.priority-areas {
    margin-bottom: var(--space-lg);
}

.priority-areas h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.priority-item {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

.priority-name {
    font-weight: 500;
    color: var(--color-dark-navy);
    display: block;
    margin-bottom: 0.25rem;
}

.priority-desc {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.recommended-products {
    margin-bottom: var(--space-lg);
}

.recommended-products h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.rec-product {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-cream);
    border-radius: 4px;
    margin-bottom: var(--space-sm);
}

.rec-icon {
    font-size: 1.5rem;
}

.rec-info {
    flex: 1;
}

.rec-name {
    font-weight: 500;
    display: block;
}

.rec-name-cn {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.rec-price {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    color: var(--color-dark-navy);
}

.btn-add {
    padding: 0.5rem 1rem;
    background: var(--color-dark-navy);
    color: white;
    border: none;
    border-radius: 2px;
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.3s ease;
}

.btn-add:hover {
    background: var(--color-champagne-gold);
    color: var(--color-dark-navy);
}

.results-cta {
    text-align: center;
    padding: var(--space-lg);
    background: linear-gradient(135deg, rgba(201, 169, 98, 0.1), rgba(201, 169, 98, 0.05));
    border-radius: 4px;
    margin-bottom: var(--space-lg);
}

.results-cta p {
    margin-bottom: var(--space-md);
}

.results-cta .small {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* Brand info styles */
.brand-subtitle {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-left: var(--space-xs);
}

.about-brand {
    background: linear-gradient(135deg, var(--color-navy), var(--color-navy-light));
    padding: var(--space-lg);
    border-radius: 8px;
    margin: var(--space-lg) 0;
    color: var(--color-soft-white);
}

.about-brand h4 {
    color: var(--color-champagne-gold);
    margin-bottom: var(--space-sm);
    font-size: 1.125rem;
}

.about-brand p {
    font-size: 0.9375rem;
    opacity: 0.9;
    line-height: 1.7;
}

/* Market stats section */
.market-stats {
    background: var(--color-dark-navy);
    color: var(--color-soft-white);
    padding: var(--space-2xl) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
    text-align: center;
}

.stat-item {
    padding: var(--space-md);
}

.stat-value {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    color: var(--color-champagne-gold);
    display: block;
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.8;
}

.stat-note {
    font-size: 0.75rem;
    opacity: 0.6;
    margin-top: var(--space-xs);
}

/* Interactive Quiz Container */
.quiz-interactive {
    max-width: 600px;
    margin: var(--space-xl) auto;
    padding: var(--space-lg);
    background: var(--color-white);
    border-radius: 8px;
    box-shadow: var(--shadow-md);
}

.quiz-intro {
    text-align: center;
}

.quiz-intro h3 {
    color: var(--color-dark-navy);
    margin-bottom: var(--space-sm);
}

.quiz-intro p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.quiz-meta {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

.quiz-question-container {
    padding: var(--space-sm) 0;
}

.quiz-category {
    display: inline-block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-champagne-gold);
    background: rgba(201, 169, 98, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 2px;
    margin-bottom: var(--space-md);
}

.quiz-question-text {
    font-size: 1.25rem;
    color: var(--color-dark-navy);
    margin-bottom: var(--space-sm);
}

.quiz-question-desc {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.quiz-option-btn {
    display: flex;
    align-items: center;
    padding: var(--space-md);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    text-align: left;
    transition: all 0.3s ease;
    cursor: pointer;
    width: 100%;
}

.quiz-option-btn:hover {
    border-color: var(--color-champagne-gold);
    background: var(--color-cream);
    transform: translateX(8px);
}

.quiz-option-btn .option-label {
    font-size: 1rem;
    color: var(--color-text-primary);
}

.quiz-back-btn {
    margin-top: var(--space-md);
    color: var(--color-text-muted);
    font-size: 0.875rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.quiz-back-btn:hover {
    color: var(--color-champagne-gold);
}

/* Quiz Results */
.quiz-results {
    text-align: center;
}

.results-header h3 {
    color: var(--color-dark-navy);
    margin-bottom: var(--space-sm);
}

.results-header p {
    color: var(--color-text-secondary);
}

.priority-areas {
    text-align: left;
    margin: var(--space-lg) 0;
    padding: var(--space-md);
    background: var(--color-cream);
    border-radius: 4px;
}

.priority-areas h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.priority-item {
    padding: var(--space-xs) 0;
    border-bottom: 1px solid var(--color-border);
}

.priority-item:last-child {
    border-bottom: none;
}

.priority-name {
    font-weight: 500;
    color: var(--color-dark-navy);
}

.priority-desc {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.rec-product {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-cream);
    border-radius: 4px;
    margin-bottom: var(--space-sm);
    text-align: left;
}

.rec-icon {
    font-size: 1.5rem;
}

.rec-info {
    flex: 1;
}

.rec-name {
    font-weight: 500;
    display: block;
    font-size: 0.9375rem;
}

.rec-name-cn {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.rec-price {
    font-family: var(--font-heading);
    font-size: 1rem;
    color: var(--color-dark-navy);
}

/* Product image styles */
.product-image {
    height: 300px;
    background: linear-gradient(135deg, var(--color-navy), var(--color-navy-light));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-icon-fallback {
    font-size: 5rem;
}

/* Tagline styling */
.product-tagline {
    font-size: 0.875rem;
    color: var(--color-champagne-gold);
    font-style: italic;
    margin-bottom: var(--space-sm);
}

/* Ingredients styling */
.product-ingredients {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-cream);
    border-radius: 4px;
}

.ingredients-label {
    font-weight: 500;
    color: var(--color-text-secondary);
}

/* Hero enhancements */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 30% 20%, rgba(201, 169, 98, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(201, 169, 98, 0.05) 0%, transparent 40%),
        url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23c9a962' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

/* Floating elements animation */
@keyframes floatElement {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero-decor {
    position: absolute;
    opacity: 0.1;
    animation: floatElement 6s ease-in-out infinite;
}

.hero-decor-1 {
    top: 20%;
    left: 10%;
    font-size: 4rem;
}

.hero-decor-2 {
    bottom: 30%;
    right: 15%;
    font-size: 3rem;
    animation-delay: 2s;
}

.hero-decor-3 {
    top: 40%;
    right: 25%;
    font-size: 2rem;
    animation-delay: 4s;
}

/* Brand badges */
.badge-premium {
    background: linear-gradient(135deg, #c9a962, #a68b4b);
    color: var(--color-dark-navy);
}

.badge-essential {
    background: linear-gradient(135deg, #2d8659, #1f5c3d);
    color: white;
}

.badge-energy {
    background: linear-gradient(135deg, #6366f1, #4f46e5);
    color: white;
}

/* Section backgrounds */
.products {
    background: linear-gradient(180deg, var(--color-cream) 0%, var(--color-white) 100%);
}

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

.science .articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.article-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(10, 22, 40, 0.1);
    border-color: var(--color-champagne-gold);
}

/* Newsletter enhancements */
.newsletter {
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
    position: relative;
    overflow: hidden;
}

.newsletter::before {
    content: '✉';
    position: absolute;
    font-size: 20rem;
    opacity: 0.03;
    top: -50px;
    right: -50px;
    transform: rotate(15deg);
}

/* Why Choose Section */
.why-choose {
    background: var(--color-cream);
    padding: var(--space-3xl) 0;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
}

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

.why-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-champagne-gold);
}

.why-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: var(--space-md);
}

.why-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
    color: var(--color-dark-navy);
}

.why-card p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* About features enhanced */
.about-feature {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md) 0;
}

.about-feature > div {
    display: flex;
    flex-direction: column;
}

.about-feature strong {
    font-size: 1rem;
    color: var(--color-dark-navy);
}

.about-feature span {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* Language Toggle Button */
#langToggle {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    min-width: 60px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Ensure consistent text in English */
body {
    font-family: 'Outfit', -apple-system, sans-serif;
}