/* ============================================
   CSS Variables - Modern Color Theme
   ============================================ */
:root {
    /* Primary Colors - Refined Solar Gold & Electric Cyan */
    --primary-gold: #FFB800;
    --primary-gold-light: #FFD54F;
    --primary-gold-dark: #E6A600;
    --primary-cyan: #00D9FF;
    --primary-cyan-light: #4DE8FF;
    --primary-cyan-dark: #00B8D4;
    
    /* Neutral Colors */
    --obsidian-black: #0A0B0D;
    --obsidian-black-light: #15171A;
    --obsidian-black-lighter: #1F2124;
    --off-white: #FAF9F6;
    --white: #FFFFFF;
    
    /* Gray Scale */
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    
    /* Semantic Colors */
    --success: #10B981;
    --error: #EF4444;
    --warning: #F59E0B;
    --info: #3B82F6;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-gold: 0 10px 30px -5px rgba(255, 184, 0, 0.3);
    --shadow-cyan: 0 10px 30px -5px rgba(0, 217, 255, 0.3);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Layout */
    --max-width: 1280px;
    --header-height: 80px;
    --header-height-mobile: 70px;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Manrope', 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ============================================
   Reset & Base Styles
   ============================================ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--off-white);
    overflow-x: hidden;
    font-weight: 400;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--obsidian-black);
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
    font-weight: 800;
}

h2 {
    font-size: clamp(2rem, 4vw + 0.5rem, 3rem);
    font-weight: 700;
}

h3 {
    font-size: clamp(1.5rem, 3vw + 0.25rem, 2rem);
    font-weight: 600;
}

p {
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--gray-600);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    padding: 0;
}

/* ============================================
   Accessibility
   ============================================ */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--obsidian-black);
    color: var(--white);
    padding: var(--spacing-sm);
    z-index: 10000;
    text-decoration: none;
    border-radius: 0 0 var(--radius-md) 0;
}

.skip-link:focus {
    top: 0;
}

/* Focus Styles */
*:focus-visible {
    outline: 2px solid var(--primary-cyan);
    outline-offset: 2px;
}

/* ============================================
   Container & Layout
   ============================================ */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

.section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

@media (max-width: 768px) {
    .section {
        padding: var(--spacing-2xl) 0;
    }
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-gold), var(--primary-cyan));
    color: var(--obsidian-black);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: clamp(2rem, 4vw + 0.5rem, 3rem);
    margin-bottom: var(--spacing-md);
    position: relative;
    display: inline-block;
    width: 100%;
}

.section-subtitle {
    font-size: clamp(1rem, 2vw + 0.25rem, 1.25rem);
    color: var(--gray-600);
    line-height: 1.8;
    margin-top: var(--spacing-md);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-base);
    border: 2px solid transparent;
    font-family: var(--font-primary);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    letter-spacing: -0.01em;
}

.btn span {
    position: relative;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary-gold), var(--primary-gold-dark));
    color: var(--obsidian-black);
    box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 35px -5px rgba(255, 184, 0, 0.4);
}

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

.btn-secondary:hover {
    background-color: var(--primary-cyan);
    color: var(--obsidian-black);
    transform: translateY(-2px);
    box-shadow: var(--shadow-cyan);
}

.btn-ghost {
    background-color: transparent;
    color: var(--gray-700);
    border: 2px solid var(--gray-300);
}

.btn-ghost:hover {
    background-color: var(--gray-100);
    border-color: var(--gray-400);
    transform: translateY(-2px);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
}

.btn i {
    font-size: 1.1em;
}

/* ============================================
   Header
   ============================================ */
.main-header {
    background: rgba(10, 11, 13, 0.95);
    backdrop-filter: blur(20px) saturate(180%);
    color: var(--off-white);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-base);
}

.main-header.scrolled {
    box-shadow: var(--shadow-lg);
    background: rgba(10, 11, 13, 0.98);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    min-height: var(--header-height);
}

@media (max-width: 768px) {
    .header-container {
        min-height: var(--header-height-mobile);
    }
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary-gold);
    transition: var(--transition-base);
    letter-spacing: -0.03em;
}

.logo:hover {
    transform: scale(1.05);
}

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

.nav-menu ul {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
}

.nav-menu a {
    position: relative;
    padding: var(--spacing-xs) 0;
    font-weight: 500;
    color: var(--off-white);
    font-size: 1rem;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(to right, var(--primary-gold), var(--primary-cyan));
    transition: var(--transition-base);
}

.nav-menu a:hover {
    color: var(--primary-gold);
}

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

.lang-switch {
    background: rgba(255, 184, 0, 0.1);
    padding: var(--spacing-xs) var(--spacing-md) !important;
    border-radius: var(--radius-md);
    font-weight: 600;
    border: 1px solid rgba(255, 184, 0, 0.3);
}

.lang-switch:hover {
    background: rgba(255, 184, 0, 0.2);
    border-color: var(--primary-gold);
}

.hamburger {
    display: none;
    cursor: pointer;
    background: none;
    border: none;
    color: var(--off-white);
    padding: var(--spacing-xs);
    z-index: 1001;
    width: 32px;
    height: 32px;
}

.hamburger-icon {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--off-white);
    position: relative;
    transition: var(--transition-base);
}

.hamburger-icon::before,
.hamburger-icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: var(--off-white);
    transition: var(--transition-base);
}

.hamburger-icon::before {
    top: -8px;
}

.hamburger-icon::after {
    bottom: -8px;
}

.hamburger[aria-expanded="true"] .hamburger-icon {
    background-color: transparent;
}

.hamburger[aria-expanded="true"] .hamburger-icon::before {
    top: 0;
    transform: rotate(45deg);
}

.hamburger[aria-expanded="true"] .hamburger-icon::after {
    bottom: 0;
    transform: rotate(-45deg);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    background: linear-gradient(135deg, rgba(255, 184, 0, 0.05) 0%, rgba(0, 217, 255, 0.05) 100%);
    padding: calc(var(--header-height) + var(--spacing-3xl)) 0 var(--spacing-3xl);
    position: relative;
    overflow: hidden;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

@media (max-width: 768px) {
    .hero {
        padding: calc(var(--header-height-mobile) + var(--spacing-2xl)) 0 var(--spacing-2xl);
        min-height: auto;
    }
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255, 184, 0, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 217, 255, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 50% 20%, rgba(255, 184, 0, 0.08) 0%, transparent 40%);
    opacity: 0.8;
    z-index: 0;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0%, 100% {
        opacity: 0.8;
    }
    50% {
        opacity: 1;
    }
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(255, 184, 0, 0.1);
    border: 1px solid rgba(255, 184, 0, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-gold);
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.6s ease-out;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw + 1rem, 4.5rem);
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out 0.2s both;
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.1;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-gold), var(--primary-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw + 0.25rem, 1.375rem);
    margin-bottom: var(--spacing-xl);
    color: var(--gray-600);
    line-height: 1.8;
    animation: fadeInUp 0.8s ease-out 0.4s both;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-subtitle strong {
    color: var(--obsidian-black);
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-gold), var(--primary-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-trust-badges {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.5s both;
}

.trust-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 184, 0, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    transition: var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.trust-badge:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-gold);
    background: rgba(255, 255, 255, 0.9);
}

.trust-badge i {
    color: var(--success);
    font-size: 1rem;
}

@media (max-width: 768px) {
    .hero-trust-badges {
        flex-direction: column;
        align-items: center;
    }
    
    .trust-badge {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    animation: fadeInUp 0.8s ease-out 0.6s both;
    flex-wrap: wrap;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-gold), var(--primary-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--spacing-xs);
    animation: float 3s ease-in-out infinite;
}

.stat-item:nth-child(2) .stat-number {
    animation-delay: 0.5s;
}

.stat-item:nth-child(3) .stat-number {
    animation-delay: 1s;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-500);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

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

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

@media (max-width: 768px) {
    .products-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

.product-card {
    background-color: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    height: 100%;
    border: 1px solid var(--gray-200);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(to right, var(--primary-gold), var(--primary-cyan));
    transform: scaleX(0);
    transition: var(--transition-base);
}

.product-card:hover::before {
    transform: scaleX(1);
}

.product-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(255, 184, 0, 0.1);
    border-color: var(--primary-gold);
    background: linear-gradient(135deg, rgba(255, 255, 255, 1) 0%, rgba(255, 255, 255, 0.98) 100%);
}

.product-card.featured {
    border: 2px solid var(--primary-gold);
    box-shadow: var(--shadow-gold);
}

.product-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--gray-100);
    color: var(--gray-700);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
}

.product-card.featured .product-badge {
    background: linear-gradient(135deg, var(--primary-gold), var(--primary-cyan));
    color: var(--obsidian-black);
}

.product-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-gold), var(--primary-cyan));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    color: var(--white);
    font-size: 1.75rem;
    box-shadow: var(--shadow-gold);
    transition: var(--transition-base);
}

.product-card:hover .product-icon {
    transform: scale(1.1) rotate(5deg);
}

.product-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--obsidian-black);
}

.product-description {
    flex-grow: 1;
    margin-bottom: var(--spacing-md);
    color: var(--gray-600);
    line-height: 1.7;
}

.product-features {
    margin-bottom: var(--spacing-lg);
}

.product-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    color: var(--gray-600);
    font-size: 0.9rem;
}

.product-features i {
    color: var(--success);
    font-size: 0.875rem;
}

.product-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: auto;
}

.product-actions .btn {
    flex: 1;
    font-size: 0.95rem;
    padding: var(--spacing-sm) var(--spacing-md);
}

/* ============================================
   Testimonials Section
   ============================================ */
.testimonials-section {
    background-color: var(--gray-50);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

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

.testimonial-card {
    background-color: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    position: relative;
    border: 1px solid var(--gray-200);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.testimonial-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-gold), var(--primary-cyan));
    transform: scaleY(0);
    transition: var(--transition-base);
}

.testimonial-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-gold);
}

.testimonial-card:hover::before {
    transform: scaleY(1);
}

.testimonial-rating {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    color: var(--primary-gold);
    font-size: 0.875rem;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: var(--spacing-lg);
    position: relative;
    color: var(--gray-700);
    line-height: 1.8;
    font-size: 1.05rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary-gold), var(--primary-cyan));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
}

.author-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.author-info strong {
    font-weight: 600;
    color: var(--obsidian-black);
    font-size: 1.05rem;
}

.author-info span {
    color: var(--gray-500);
    font-size: 0.9rem;
}

/* ============================================
   FAQ Section Styles
   ============================================ */
.faq-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(180deg, var(--off-white) 0%, var(--white) 100%);
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.faq-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition-base);
    border: 1px solid var(--gray-200);
}

.faq-item:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-cyan);
}

.faq-question {
    width: 100%;
    padding: var(--spacing-lg) var(--spacing-xl);
    background: transparent;
    border: none;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gray-900);
    transition: var(--transition-base);
}

.faq-question:hover {
    color: var(--primary-cyan);
    background: var(--gray-50);
}

.faq-question[aria-expanded="true"] {
    color: var(--primary-cyan);
    background: var(--gray-50);
}

.faq-question[aria-expanded="true"] i {
    transform: rotate(180deg);
}

.faq-question i {
    color: var(--primary-cyan);
    transition: var(--transition-base);
    flex-shrink: 0;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 var(--spacing-xl);
}

.faq-item.active .faq-answer,
.faq-question[aria-expanded="true"] + .faq-answer {
    max-height: 500px;
    padding: 0 var(--spacing-xl) var(--spacing-lg);
}

.faq-answer p {
    color: var(--gray-700);
    line-height: 1.8;
    margin: 0;
}

/* ============================================
   Case Studies Section Styles
   ============================================ */
.case-studies-section {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.case-study-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.case-study-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-gold) 0%, var(--primary-cyan) 100%);
    transform: scaleY(0);
    transition: var(--transition-base);
}

.case-study-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(0, 217, 255, 0.1);
    border-color: var(--primary-cyan);
    background: linear-gradient(135deg, rgba(255, 255, 255, 1) 0%, rgba(255, 255, 255, 0.98) 100%);
}

.case-study-card:hover::before {
    transform: scaleY(1);
}

.case-study-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
}

.case-study-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary-gold) 0%, var(--primary-cyan) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
}

.case-study-badge {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--primary-cyan);
    color: var(--white);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.case-study-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

.case-study-description {
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.case-study-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-md);
}

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

.metric-value {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary-cyan);
    margin-bottom: var(--spacing-xs);
    line-height: 1.2;
}

.metric-label {
    font-size: 0.85rem;
    color: var(--gray-600);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.case-study-result {
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(255, 184, 0, 0.1) 0%, rgba(0, 217, 255, 0.1) 100%);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--primary-gold);
    color: var(--gray-700);
    line-height: 1.7;
}

.case-study-result strong {
    color: var(--gray-900);
    font-weight: 700;
}

/* ============================================
   Contact Section
   ============================================ */
.contact {
    background: linear-gradient(135deg, rgba(255, 184, 0, 0.05) 0%, rgba(0, 217, 255, 0.05) 100%);
    text-align: center;
    padding: var(--spacing-3xl) 0 !important;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-2xl) 0;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

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

.contact-card {
    background-color: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
    text-align: left;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 184, 0, 0.1), transparent);
    transition: left 0.5s ease;
}

.contact-card:hover::before {
    left: 100%;
}

.contact-card:hover {
    transform: translateY(-5px) scale(1.03);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-gold);
}

.contact-card.whatsapp:hover {
    border-color: #25D366;
}

.contact-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--primary-gold), var(--primary-cyan));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-card.whatsapp .contact-icon {
    background: linear-gradient(135deg, #25D366, #128C7E);
}

.contact-details h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
    color: var(--obsidian-black);
}

.contact-details p {
    color: var(--gray-600);
    margin: 0;
    font-size: 0.95rem;
}

.contact-cta {
    margin-top: var(--spacing-xl);
}

/* ============================================
   Footer
   ============================================ */
.main-footer {
    background: linear-gradient(135deg, var(--obsidian-black) 0%, var(--obsidian-black-light) 100%);
    color: var(--off-white);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary-gold);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.03em;
}

.footer-about p {
    color: rgba(250, 249, 246, 0.8);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

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

.social-icon {
    width: 45px;
    height: 45px;
    border-radius: var(--radius-full);
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
    color: var(--off-white);
    font-size: 1.1rem;
}

.social-icon:hover {
    background: linear-gradient(135deg, var(--primary-gold), var(--primary-cyan));
    transform: translateY(-3px);
    box-shadow: var(--shadow-gold);
}

.footer-links h4 {
    color: var(--off-white);
    margin-bottom: var(--spacing-md);
    font-size: 1.2rem;
    font-weight: 600;
}

.footer-links ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: rgba(250, 249, 246, 0.8);
    transition: var(--transition-base);
    display: inline-block;
}

.footer-links a:hover {
    color: var(--primary-cyan);
    transform: translateX(5px);
}

.copyright {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(250, 249, 246, 0.6);
    font-size: 0.9rem;
}

/* ============================================
   WhatsApp Widget
   ============================================ */
.whatsapp-widget {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
}

@media (max-width: 768px) {
    .whatsapp-widget {
        bottom: 20px;
        right: 20px;
    }
}

.whatsapp-btn {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #25D366, #128C7E);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
    transition: var(--transition-base);
    position: relative;
    cursor: pointer;
    border: none;
    color: var(--white);
    font-size: 1.75rem;
}

@media (max-width: 768px) {
    .whatsapp-btn {
        width: 56px;
        height: 56px;
        font-size: 1.5rem;
    }
}

.whatsapp-btn:hover {
    transform: scale(1.15) rotate(5deg);
    box-shadow: 0 12px 32px rgba(37, 211, 102, 0.6);
    animation: float 2s ease-in-out infinite;
}

.whatsapp-btn:active {
    transform: scale(1.05);
}

.whatsapp-btn::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-full);
    background-color: #25D366;
    animation: pulse 2s infinite;
    z-index: -1;
}

.whatsapp-tooltip {
    position: absolute;
    bottom: 75px;
    right: 0;
    background-color: var(--obsidian-black);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    white-space: nowrap;
    opacity: 0;
    transform: translateY(10px);
    transition: var(--transition-base);
    pointer-events: none;
    box-shadow: var(--shadow-lg);
}

.whatsapp-tooltip::after {
    content: '';
    position: absolute;
    bottom: -6px;
    right: 20px;
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 6px solid var(--obsidian-black);
}

.whatsapp-btn:hover .whatsapp-tooltip {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Toast Notification
   ============================================ */
.toast {
    position: fixed;
    bottom: 110px;
    right: 30px;
    background-color: var(--obsidian-black);
    color: var(--white);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-2xl);
    z-index: 1001;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.95rem;
    max-width: 300px;
}

@media (max-width: 768px) {
    .toast {
        bottom: 90px;
        right: 20px;
        max-width: calc(100% - 40px);
    }
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.toast i {
    font-size: 1.1rem;
}

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

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    70% {
        transform: scale(1.5);
        opacity: 0;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

/* Enhanced animations for 2025-2026 */
@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

/* Smooth scroll behavior */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

/* Performance optimizations */
.product-card,
.testimonial-card,
.case-study-card,
.contact-card {
    will-change: transform;
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* Improved loading states and skeleton screens */
@keyframes skeleton {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: calc(200px + 100%) 0;
    }
}

.skeleton {
    animation: skeleton 1.5s ease-in-out infinite;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200px 100%;
}

/* Enhanced focus states for accessibility */
*:focus-visible {
    outline: 3px solid var(--primary-cyan);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}

/* Better button states */
.btn:active {
    transform: scale(0.98);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

/* Enhanced glassmorphism effect */
.glass-effect {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Improved text selection */
::selection {
    background: var(--primary-gold);
    color: var(--obsidian-black);
}

::-moz-selection {
    background: var(--primary-gold);
    color: var(--obsidian-black);
}

/* Core Web Vitals optimizations */
img {
    loading: lazy;
    decoding: async;
}

/* Better mobile touch targets */
@media (max-width: 768px) {
    .btn,
    .faq-question,
    .nav-menu a {
        min-height: 44px;
        min-width: 44px;
    }
}

/* Smooth scroll behavior enhancement */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
        scroll-padding-top: calc(var(--header-height) + 20px);
    }
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 992px) {
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: var(--header-height-mobile);
        right: -100%;
        flex-direction: column;
        background-color: var(--obsidian-black);
        width: 85%;
        max-width: 350px;
        height: calc(100vh - var(--header-height-mobile));
        transition: var(--transition-base);
        padding: var(--spacing-xl) var(--spacing-lg);
        box-shadow: -5px 0 25px rgba(0, 0, 0, 0.3);
        backdrop-filter: blur(20px);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-menu ul {
        flex-direction: column;
        gap: 0;
        width: 100%;
    }
    
    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-menu a {
        display: block;
        padding: var(--spacing-md) 0;
        font-size: 1.1rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }
    
    .hero-cta .btn {
        width: 100%;
    }
    
    .hero-stats {
        gap: var(--spacing-lg);
    }
    
    .product-actions {
        flex-direction: column;
    }
}

@media (max-width: 576px) {
    .hero {
        padding: calc(var(--header-height-mobile) + var(--spacing-xl)) 0 var(--spacing-xl);
    }
    
    .product-card {
        padding: var(--spacing-lg);
    }
    
    .testimonial-card {
        padding: var(--spacing-lg);
    }
    
    .contact-card {
        flex-direction: column;
        text-align: center;
    }
    
    .faq-container {
        gap: var(--spacing-sm);
    }
    
    .faq-question {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: 1rem;
    }
    
    .faq-answer {
        padding: 0 var(--spacing-lg);
    }
    
    .faq-item.active .faq-answer,
    .faq-question[aria-expanded="true"] + .faq-answer {
        padding: 0 var(--spacing-lg) var(--spacing-md);
    }
    
    .case-studies-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .case-study-metrics {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .metric-value {
        font-size: 1.5rem;
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.95rem;
    }
    
    .btn-large {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: 1rem;
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .main-header,
    .whatsapp-widget,
    .toast {
        display: none;
    }
    
    .hero {
        margin-top: 0;
        padding: var(--spacing-xl) 0;
    }
}

/* ============================================
   Breadcrumbs for SEO
   ============================================ */
.breadcrumbs {
    background: var(--gray-50);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--gray-200);
    margin-top: var(--header-height);
    position: sticky;
    top: var(--header-height);
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(250, 249, 246, 0.9);
}

.breadcrumbs ol {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 0.875rem;
}

.breadcrumbs li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.breadcrumbs li:not(:last-child)::after {
    content: '/';
    color: var(--gray-400);
    margin-left: var(--spacing-xs);
}

.breadcrumbs a {
    color: var(--gray-600);
    text-decoration: none;
    transition: var(--transition-base);
}

.breadcrumbs a:hover {
    color: var(--primary-cyan);
}

@media (max-width: 768px) {
    .breadcrumbs {
        margin-top: var(--header-height-mobile);
        top: var(--header-height-mobile);
        padding: var(--spacing-xs) 0;
    }
    
    .breadcrumbs ol {
        font-size: 0.75rem;
    }
}

/* ============================================
   Utility Classes
   ============================================ */
.animate-in {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}