/* ===================================
   CSS Variables - Color Scheme
   Black, Gold, and Blue Theme
   =================================== */
:root {
    /* Primary Colors */
    --color-black: #0a0a0a;
    --color-dark: #1a1a1a;
    --color-dark-alt: #2a2a2a;
    --color-gold: #d4af37;
    --color-gold-light: #f4d03f;
    --color-gold-dark: #b8941f;
    --color-blue: #1e3a8a;
    --color-blue-light: #3b82f6;
    --color-blue-dark: #1e293b;
    
    /* Neutral Colors */
    --color-white: #ffffff;
    --color-gray-light: #e5e7eb;
    --color-gray: #6b7280;
    --color-gray-dark: #374151;
    
    /* Gradients */
    --gradient-gold: linear-gradient(135deg, #d4af37 0%, #f4d03f 100%);
    --gradient-blue: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    --gradient-dark: linear-gradient(135deg, #0a0a0a 0%, #2a2a2a 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(10, 10, 10, 0.9) 0%, rgba(30, 58, 138, 0.8) 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(212, 175, 55, 0.1);
    --shadow-md: 0 4px 6px rgba(212, 175, 55, 0.2);
    --shadow-lg: 0 10px 25px rgba(212, 175, 55, 0.3);
    --shadow-xl: 0 20px 40px rgba(212, 175, 55, 0.4);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===================================
   Global Styles
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--color-black);
    color: var(--color-white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

section {
    padding: var(--spacing-xl) 0;
}

/* ===================================
   Typography
   =================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-gold);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-sm);
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    color: var(--color-gray);
    margin-bottom: var(--spacing-lg);
    font-size: 1.1rem;
}

/* ===================================
   Header & Navigation
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(212, 175, 55, 0.2);
    transition: var(--transition-base);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-gold);
    font-family: 'Playfair Display', serif;
}

.nav-logo i {
    color: var(--color-blue-light);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--color-white);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: var(--transition-base);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-gold);
    transition: var(--transition-base);
}

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

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

.nav-toggle {
    display: none;
    font-size: 1.5rem;
    color: var(--color-gold);
    cursor: pointer;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-dark);
    overflow: hidden;
    padding-top: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(30, 58, 138, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(212, 175, 55, 0.2) 0%, transparent 50%);
    animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-overlay);
    opacity: 0.7;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
    animation: fadeInUp 1s ease;
}

.hero-title .highlight {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-description {
    font-size: 1.25rem;
    color: var(--color-gray-light);
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.6s both;
}

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

.stat-number {
    font-size: 2.5rem;
    color: var(--color-gold);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--color-gray);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-gold);
    font-size: 2rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-gold);
    color: var(--color-black);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--color-gold);
    border: 2px solid var(--color-gold);
}

.btn-secondary:hover {
    background: var(--color-gold);
    color: var(--color-black);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* ===================================
   Features Section
   =================================== */
.features {
    background: var(--color-dark);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--gradient-gold);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--color-dark-alt);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid rgba(212, 175, 55, 0.2);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-blue);
    opacity: 0;
    transition: var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-gold);
}

.feature-card:hover::before {
    opacity: 0.1;
}

.feature-icon {
    position: relative;
    font-size: 3rem;
    color: var(--color-gold);
    margin-bottom: var(--spacing-md);
    display: inline-block;
}

.feature-icon i {
    filter: drop-shadow(0 0 10px rgba(212, 175, 55, 0.5));
}

.feature-title {
    position: relative;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-white);
}

.feature-description {
    position: relative;
    color: var(--color-gray);
    line-height: 1.8;
}

/* ===================================
   Products Section
   =================================== */
.products {
    background: var(--color-black);
}

.product-categories {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.category-btn {
    padding: 0.625rem 1.5rem;
    background: var(--color-dark-alt);
    color: var(--color-white);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition-base);
}

.category-btn:hover,
.category-btn.active {
    background: var(--gradient-gold);
    color: var(--color-black);
    border-color: var(--color-gold);
}

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

.product-card {
    background: var(--color-dark);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(212, 175, 55, 0.2);
    transition: var(--transition-base);
    position: relative;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-gold);
}

.product-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--gradient-gold);
    color: var(--color-black);
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    z-index: 10;
    box-shadow: var(--shadow-md);
}

.product-image {
    height: 250px;
    background: var(--gradient-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.product-placeholder {
    font-size: 5rem;
    color: var(--color-gold);
    opacity: 0.6;
}

.product-info {
    padding: var(--spacing-md);
}

.product-title {
    font-size: 1.375rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-gold);
}

.product-description {
    color: var(--color-gray);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
    font-size: 0.9rem;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-gold);
}

.product-rating span {
    margin-left: 0.5rem;
    color: var(--color-gray);
    font-size: 0.875rem;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(212, 175, 55, 0.2);
}

.product-price {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-gold);
}

.btn-buy {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: var(--gradient-blue);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
}

.btn-buy:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

/* ===================================
   Testimonials Section
   =================================== */
.testimonials {
    background: var(--color-dark);
}

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

.testimonial-card {
    background: var(--color-dark-alt);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(212, 175, 55, 0.2);
    transition: var(--transition-base);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-gold);
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.testimonial-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--color-black);
}

.testimonial-name {
    font-size: 1.125rem;
    color: var(--color-white);
    margin-bottom: 0.25rem;
}

.testimonial-rating {
    color: var(--color-gold);
    font-size: 0.875rem;
}

.testimonial-text {
    color: var(--color-gray-light);
    line-height: 1.8;
    font-style: italic;
}

/* ===================================
   CTA Section
   =================================== */
.cta {
    background: var(--gradient-blue);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.3) 0%, transparent 70%);
    animation: float 8s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(10deg); }
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    z-index: 10;
}

.cta-title {
    font-size: 2.5rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.cta-description {
    font-size: 1.125rem;
    color: var(--color-gray-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    background: var(--color-black);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-gold);
    color: var(--color-black);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-item h4 {
    color: var(--color-white);
    margin-bottom: 0.5rem;
    font-size: 1.125rem;
}

.contact-item p {
    color: var(--color-gray);
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    width: 45px;
    height: 45px;
    background: var(--color-dark-alt);
    color: var(--color-gold);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    transition: var(--transition-base);
}

.social-link:hover {
    background: var(--gradient-gold);
    color: var(--color-black);
    transform: translateY(-3px);
    border-color: var(--color-gold);
}

.contact-form {
    background: var(--color-dark);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(212, 175, 55, 0.2);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-input {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--color-dark-alt);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: var(--transition-base);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.form-input::placeholder {
    color: var(--color-gray);
}

textarea.form-input {
    resize: vertical;
    min-height: 120px;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--color-dark);
    border-top: 1px solid rgba(212, 175, 55, 0.2);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-title {
    font-size: 1.5rem;
    color: var(--color-gold);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-title i {
    color: var(--color-blue-light);
}

.footer-description {
    color: var(--color-gray);
    line-height: 1.8;
}

.footer-heading {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
}

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

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--color-gray);
    text-decoration: none;
    transition: var(--transition-base);
}

.footer-links a:hover {
    color: var(--color-gold);
    padding-left: 5px;
}

.footer-newsletter-text {
    color: var(--color-gray);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.newsletter-form {
    display: flex;
    gap: 0.5rem;
}

.newsletter-input {
    flex: 1;
    padding: 0.75rem 1rem;
    background: var(--color-dark-alt);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-family: 'Poppins', sans-serif;
}

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

.newsletter-form .btn {
    padding: 0.75rem 1.25rem;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(212, 175, 55, 0.2);
    color: var(--color-gray);
}

/* ===================================
   Scroll to Top Button
   =================================== */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-gold);
    color: var(--color-black);
    border: none;
    border-radius: 50%;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
    z-index: 999;
    box-shadow: var(--shadow-lg);
}

.scroll-top.show {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

/* ===================================
   Responsive Design
   =================================== */
@media screen and (max-width: 968px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: var(--color-dark);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transition: var(--transition-base);
    }
    
    .nav-menu.show {
        left: 0;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

@media screen and (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .category-btn {
        font-size: 0.875rem;
        padding: 0.5rem 1rem;
    }
}

/* ===================================
   Utility Classes
   =================================== */
.text-center {
    text-align: center;
}

.text-gold {
    color: var(--color-gold);
}

.text-blue {
    color: var(--color-blue-light);
}

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }