:root {
    --primary-color: #1e3a8a;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --dark-color: #1f2937;
    --darker-color: #111827;
    --light-color: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --text-color: #334155;
    --text-light: #64748b;
    --white: #ffffff;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.875rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    min-width: 140px;
}

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

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

.btn-outline {
    background-color: transparent;
    color: var(--dark-color);
    border-color: var(--gray-300);
}

.btn-outline:hover {
    background-color: var(--gray-100);
    border-color: var(--gray-400);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    transition: var(--transition);
    height:60px;
    padding:0.2rem;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
    height:100%;
}

.nav-logo img {
    height: 100%;
    max-height: 200px;  /* optional: prevents it from growing too tall */
    width: auto;
    object-fit: contain; /* keeps aspect ratio */
    padding-top:1rem;
}


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

.nav-item {
    position: relative;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

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

.nav-link i {
    font-size: 0.75rem;
    transition: var(--transition);
}

.dropdown:hover .nav-link i {
    transform: rotate(180deg);
}

.dropdown-content {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--white);
    min-width: 200px;
    box-shadow: var(--shadow-lg);
    border-radius: 8px;
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    border: 1px solid var(--gray-200);
}

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

.dropdown-content a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
}

.dropdown-content a:hover {
    background-color: var(--gray-100);
    color: var(--primary-color);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--dark-color);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #f8fafc 100%);
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

/* Animated background elements */
.hero::after {
    content: '';
    position: absolute;
    top: 20%;
    right: 10%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(30, 58, 138, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23e2e8f0" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--dark-color) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-weight: 400;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-color);
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

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

.device-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 400px;
    position: relative;
}

/* Connection lines between devices */
.device-grid::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, transparent, var(--accent-color), transparent);
    transform: translate(-50%, -50%);
    opacity: 0.3;
}

.device-grid::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 2px;
    background: linear-gradient(to right, transparent, var(--accent-color), transparent);
    transform: translate(-50%, -50%);
    opacity: 0.3;
}

.device-item {
    background: var(--white);
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    border: 1px solid var(--gray-200);
    position: relative;
    z-index: 2;
}

.device-item::before {
    content: '';
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    bottom: -1px;
    background: linear-gradient(45deg, var(--accent-color), var(--primary-color), var(--accent-color));
    border-radius: 17px;
    z-index: -1;
    opacity: 0;
    transition: var(--transition);
}

.device-item:hover::before {
    opacity: 0.7;
    animation: borderGlow 2s ease-in-out infinite;
}

@keyframes borderGlow {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 0.3; }
}

.device-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.device-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.device-item span {
    font-weight: 600;
    color: var(--text-color);
}

/* Features Section */
.features {
    padding: 80px 0;
    background-color: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-card {
    text-align: center;
    padding: 3rem 2rem;
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--gray-200);
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.feature-icon i {
    font-size: 2rem;
    color: var(--white);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.feature-card p {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature-description {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Section Titles */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--dark-color);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

/* Technology Section */
.technology {
    padding: 80px 0;
    background-color: var(--gray-100);
    position: relative;
    overflow: hidden;
}

.technology::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="tech-grid" width="20" height="20" patternUnits="userSpaceOnUse"><path d="M 20 0 L 0 0 0 20" fill="none" stroke="%23e2e8f0" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23tech-grid)"/></svg>');
    opacity: 0.3;
}

.tech-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-top: 2rem;
}

.tech-info h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--dark-color);
}

.tech-info p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.tech-features {
    list-style: none;
    margin-bottom: 2rem;
}

.tech-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    font-size: 1.125rem;
}

.tech-features i {
    color: var(--primary-color);
    font-size: 1.25rem;
}

.diagram-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    padding: 3rem;
    background: linear-gradient(135deg, var(--white) 0%, #f8fafc 100%);
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--gray-200);
    position: relative;
}

.diagram-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(30, 58, 138, 0.05) 0%, transparent 70%);
    border-radius: 20px;
    pointer-events: none;
}

.network-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 2rem 1.5rem;
    border-radius: 16px;
    min-width: 140px;
    text-align: center;
    position: relative;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.network-node::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, transparent, rgba(30, 58, 138, 0.2), transparent);
    border-radius: 18px;
    z-index: -1;
    opacity: 0;
    transition: var(--transition);
}

.network-node:hover::before {
    opacity: 1;
}

.network-node:hover {
    transform: translateY(-5px);
}

.network-node.secure {
    background-color: #dcfce7;
    color: #166534;
}

.network-node.iot {
    background-color: #fef3c7;
    color: #92400e;
}

.gateway {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 2.5rem 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    border-radius: 20px;
    min-width: 160px;
    text-align: center;
    position: relative;
    box-shadow: 0 10px 30px rgba(30, 58, 138, 0.3);
    transition: var(--transition);
}

.gateway::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    border-radius: 50%;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.3; }
    50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.1; }
}

.gateway:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 40px rgba(30, 58, 138, 0.4);
}

.network-node i, .gateway i {
    font-size: 2rem;
}

.data-flow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.flow-arrow {
    width: 0;
    height: 0;
    border-left: 15px solid transparent;
    border-right: 15px solid transparent;
    border-top: 20px solid var(--primary-color);
}

.flow-arrow.blocked {
    border-top-color: #dc2626;
    position: relative;
}

.flow-arrow.blocked::after {
    content: '✕';
    position: absolute;
    top: -25px;
    left: -8px;
    color: #dc2626;
    font-weight: bold;
}

/* Solutions Section */
.solutions {
    padding: 80px 0;
    background-color: var(--white);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.solution-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--gray-200);
    position: relative;
}

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

.solution-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.solution-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.solution-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.solution-card p {
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.solution-card ul {
    list-style: none;
    margin-bottom: 2rem;
}

.solution-card li {
    padding: 0.25rem 0;
    color: var(--text-light);
    position: relative;
    padding-left: 1rem;
}

.solution-card li::before {
    content: '•';
    color: var(--primary-color);
    position: absolute;
    left: 0;
}

.solution-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.solution-link:hover {
    gap: 0.75rem;
}

/* Products Section */
.products {
    padding: 80px 0;
    background-color: var(--gray-100);
}

.product-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-top: 2rem;
}

.product-image img {
    width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    
}

.product-info h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.product-tagline {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.product-specs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.spec-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.spec-item i {
    color: var(--primary-color);
    font-size: 1.25rem;
}

/* Stats Section */
.stats {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item {
    padding: 2rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.125rem;
    opacity: 0.9;
}

/* About Section */
.about {
    padding: 80px 0;
    background-color: var(--white);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-content h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--dark-color);
}

.about-content p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.company-values {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.value-item {
    text-align: center;
    padding: 2rem;
}

.value-item i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.value-item h4 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background-color: var(--gray-100);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 2rem;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.contact-info p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

/* .contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-method i {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.contact-method h4 {
    margin-bottom: 0.25rem;
    color: var(--dark-color);
} */

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-method {
    display: flex;
    align-items: flex-start; /* important for vertical alignment */
    gap: 1rem;
    color: var(--black);
}

.contact-method i {
    font-size: 1.5rem;
    color: var(--primary-color);
    flex-shrink: 0;          /* prevent icon from resizing */
    margin-top: 3px;         /* small adjustment for vertical balance */
}

.contact-method h4 {
    margin: 0;
    font-size: 1rem;
    color: var(--black);
}

.contact-method p {
    margin: 2px 0 0;
    color: var(--darker-color, #111827);
}

.form-message {
    padding: 12px 16px;
    margin-bottom: 15px;
    border-radius: 6px;
    font-weight: 500;
    text-align: center;
}

.form-message.success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #10b981;
}

.form-message.error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #ef4444;
}

.contact-form {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Footer */
.footer {
    background-color: var(--gray-300);
    color: var(--black);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    color: var(--black);
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
}

.footer-section ul {
    list-style: none;
}

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

.footer-section a {
    color: var(--darker-color, #111827); /* fallback dark color */
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-logo {
    height: 200px;
    width: auto;
    margin-bottom: 1rem;
}

.footer-section p {
    color: var(--darker-color, #111827);
    margin-bottom: 1.5rem;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    background-color: var(--white);
    color: var(--black);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 2rem;
    text-align: center;
    color: var(--darker-color, #111827);
}

.footer-bottom a {
    color: var(--darker-color, #111827);
    text-decoration: none;
}

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

/* IoT Device Icons */
.iot-device-icon {
    position: relative;
    display: inline-block;
}

.iot-device-icon::after {
    content: '';
    position: absolute;
    top: -5px;
    right: -5px;
    width: 12px;
    height: 12px;
    background: #10b981;
    border-radius: 50%;
    border: 2px solid var(--white);
    animation: statusBlink 2s ease-in-out infinite;
}

@keyframes statusBlink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0.3; }
}

/* Shield Animation */
.shield-animation {
    position: relative;
    display: inline-block;
}

.shield-animation::before {
    content: '🛡️';
    position: absolute;
    top: -10px;
    right: -10px;
    font-size: 1.5rem;
    animation: shieldRotate 3s linear infinite;
}

@keyframes shieldRotate {
    0% { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(180deg) scale(1.1); }
    100% { transform: rotate(360deg) scale(1); }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .tech-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .product-main {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
        height: calc(100vh - 70px);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-item {
        margin: 1rem 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .device-grid {
        grid-template-columns: 1fr;
        max-width: 250px;
    }
    
    .device-grid::before,
    .device-grid::after {
        display: none;
    }
    
    .security-visualization {
        height: 250px;
    }
    
    .data-flow-container {
        height: 150px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .features-grid,
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .company-values {
        grid-template-columns: 1fr;
    }
}

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.animate-fade-up {
    animation: fadeInUp 0.6s ease-out forwards;
}

.animate-fade-left {
    animation: fadeInLeft 0.6s ease-out forwards;
}

.animate-fade-right {
    animation: fadeInRight 0.6s ease-out forwards;
}

/* Loading states */
.loading {
    opacity: 0;
}

.loaded .loading {
    opacity: 1;
}

/* Custom SVG Icons */
.svg-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    display: block;
}

/* Network Security Visualization */
.security-visualization {
    position: relative;
    width: 100%;
    height: 300px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: 20px;
    overflow: hidden;
    margin: 2rem 0;
}

.security-layer {
    position: absolute;
    border-radius: 50%;
    border: 2px solid;
    animation: securityPulse 4s ease-in-out infinite;
}

.security-layer:nth-child(1) {
    width: 80px;
    height: 80px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-color: var(--primary-color);
    background: rgba(30, 58, 138, 0.1);
}

.security-layer:nth-child(2) {
    width: 140px;
    height: 140px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-color: var(--accent-color);
    background: rgba(59, 130, 246, 0.05);
    animation-delay: 1s;
}

.security-layer:nth-child(3) {
    width: 200px;
    height: 200px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-color: var(--secondary-color);
    background: rgba(30, 64, 175, 0.03);
    animation-delay: 2s;
}

@keyframes securityPulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.8; }
    50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.4; }
}

/* Data Flow Animation */
.data-flow-container {
    position: relative;
    width: 100%;
    height: 200px;
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    margin: 2rem 0;
    border: 1px solid var(--gray-200);
}

.data-packet {
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: dataFlow 3s linear infinite;
}

.data-packet:nth-child(2) { animation-delay: 0.5s; }
.data-packet:nth-child(3) { animation-delay: 1s; }
.data-packet:nth-child(4) { animation-delay: 1.5s; }
.data-packet:nth-child(5) { animation-delay: 2s; }

@keyframes dataFlow {
    0% { left: -20px; top: 50%; transform: translateY(-50%); }
    100% { left: calc(100% + 20px); top: 50%; transform: translateY(-50%); }
}

/* Circuit Board Pattern */
.circuit-pattern {
    background-image: 
        radial-gradient(circle at 25% 25%, var(--primary-color) 2px, transparent 2px),
        radial-gradient(circle at 75% 75%, var(--accent-color) 2px, transparent 2px),
        linear-gradient(90deg, transparent 48%, var(--gray-300) 49%, var(--gray-300) 51%, transparent 52%),
        linear-gradient(0deg, transparent 48%, var(--gray-300) 49%, var(--gray-300) 51%, transparent 52%);
    background-size: 50px 50px, 50px 50px, 50px 50px, 50px 50px;
    background-position: 0 0, 25px 25px, 0 0, 0 0;
    opacity: 0.1;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

#myBtn {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 30px;
    z-index: 99;
    font-size: 18px;
    border: none;
    outline: none;
    background-color: red;
    color: white;
    cursor: pointer;
    padding: 15px;
    border-radius: 4px;
  }
  
  #myBtn:hover {
    background-color: #555;
  }