/* ===== CSS Variables ===== */
:root {
    /* Colors */
    --primary-color: #00B5B5;
    --primary-dark: #008C8C;
    --primary-light: #00E5E5;
    --secondary-color: #1E90FF;
    --dark-bg: #0D1B2A;
    --dark-secondary: #1B2A41;
    --light-bg: #F4F6F9;
    --white: #FFFFFF;
    --text-dark: #1A1A1A;
    --text-gray: #6B7280;
    --text-light: #9CA3AF;
    --border-color: #E5E7EB;
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 30px;
    --font-size-4xl: 36px;
    --font-size-5xl: 48px;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Borders */
    --border-radius-sm: 4px;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    --border-radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --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);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

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

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-family);
    color: var(--text-dark);
    background-color: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul, ol {
    list-style: none;
}

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

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-dark);
}

h1 {
    font-size: var(--font-size-5xl);
}

h2 {
    font-size: var(--font-size-4xl);
}

h3 {
    font-size: var(--font-size-3xl);
}

h4 {
    font-size: var(--font-size-2xl);
}

h5 {
    font-size: var(--font-size-xl);
}

h6 {
    font-size: var(--font-size-lg);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-gray);
}

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

.highlight {
    color: var(--primary-color);
    position: relative;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
    text-align: center;
}

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

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

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

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

.btn-outline {
    background-color: transparent;
    color: var(--text-dark);
    border-color: var(--border-color);
}

.btn-outline:hover {
    background-color: var(--light-bg);
    border-color: var(--text-gray);
}

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

.btn-white:hover {
    background-color: var(--light-bg);
}

.btn-disabled {
    background-color: var(--border-color);
    color: var(--text-light);
    cursor: not-allowed;
    opacity: 0.6;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: var(--font-size-lg);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-sm);
}

/* ===== Navigation ===== */
.navbar {
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.logo {
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.logo-text {
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-menu a {
    color: var(--text-dark);
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

.dropdown {
    position: relative;
}

.dropdown > a {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 0.5rem;
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: 0.5rem 0;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    padding: 0;
}

.dropdown-menu a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--text-dark);
    transition: background-color var(--transition-fast);
}

.dropdown-menu a:hover {
    background-color: var(--light-bg);
    color: var(--primary-color);
}

.dropdown-menu a.coming-soon {
    color: var(--text-light);
    font-style: italic;
}

.nav-cta {
    margin-left: 1rem;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-dark);
    transition: all var(--transition-base);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--dark-secondary) 100%);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0, 181, 181, 0.03) 2px, rgba(0, 181, 181, 0.03) 4px),
        repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(0, 181, 181, 0.03) 2px, rgba(0, 181, 181, 0.03) 4px);
    opacity: 0.5;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    color: var(--white);
}

.hero-title {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.hero-title .highlight {
    color: var(--primary-light);
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: var(--spacing-lg);
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-sm);
    color: var(--white);
    backdrop-filter: blur(10px);
}

.badge i {
    color: var(--primary-light);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.product-hero-img {
    max-width: 500px;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* ===== Section Styles ===== */
section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

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

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

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

.value-card {
    text-align: center;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-base);
    background-color: var(--white);
    border: 2px solid var(--border-color);
}

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

.value-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: var(--border-radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
}

.value-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.value-card p {
    color: var(--text-gray);
    line-height: 1.7;
}

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

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: var(--spacing-xl);
}

.product-card {
    background-color: var(--white);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all var(--transition-base);
    position: relative;
}

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

.product-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    z-index: 10;
}

.coming-soon-badge {
    background-color: var(--warning);
}

.product-image {
    height: 300px;
    background-color: var(--light-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.product-image img {
    max-height: 100%;
    object-fit: contain;
}

.product-content {
    padding: var(--spacing-xl);
}

.product-name {
    font-size: var(--font-size-2xl);
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.product-category {
    color: var(--primary-color);
    font-weight: 600;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-md);
}

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

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

.product-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
    color: var(--text-gray);
}

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

.product-actions {
    display: flex;
    gap: 1rem;
}

.product-actions .btn {
    flex: 1;
}

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

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

.application-card {
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    border: 2px solid var(--border-color);
    transition: all var(--transition-base);
    background-color: var(--white);
}

.application-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.app-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.application-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.application-card p {
    color: var(--text-gray);
    line-height: 1.7;
}

/* ===== CTA Section ===== */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    text-align: center;
}

.cta-content h2 {
    color: var(--white);
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Footer ===== */
.footer {
    background-color: var(--dark-bg);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand {
    font-size: var(--font-size-2xl);
    color: var(--primary-light);
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    color: var(--primary-light);
    font-size: var(--font-size-sm);
    font-style: italic;
    margin-bottom: var(--spacing-md);
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

.footer-section h4 {
    color: var(--white);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

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

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: var(--primary-light);
}

.contact-info li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.contact-info i {
    color: var(--primary-light);
    margin-top: 0.25rem;
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-sm);
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
}

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

/* ===== Scroll to Top Button ===== */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
}

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

.scroll-to-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-5px);
}