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

:root {
    --primary-color: #2563eb;
    --secondary-color: #10b981;
    --dark-color: #1e293b;
    --light-color: #f8fafc;
    --text-color: #334155;
    --accent-color: #8b5cf6;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-color);
}

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

header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo h1 {
    color: var(--primary-color);
    font-size: 1.5rem;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
}

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

.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: white;
    padding: 150px 20px 100px;
    margin-top: 70px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    animation: fadeInUp 1s ease 0.2s both;
}

.cta-button {
    display: inline-block;
    background-color: white;
    color: var(--primary-color);
    padding: 15px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: transform 0.3s, box-shadow 0.3s;
    animation: fadeInUp 1s ease 0.4s both;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.hero-animation {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    z-index: 1;
}

.pulse-dot {
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.5;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.5);
        opacity: 0;
    }
}

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

.about {
    padding: 80px 20px;
    background-color: white;
}

.about h2 {
    text-align: center;
    font-size: 2.5rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.intro {
    text-align: center;
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 3rem;
    color: var(--text-color);
}

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

.benefit-card {
    background: var(--light-color);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.benefit-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.benefit-card h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.iot-solutions {
    padding: 80px 20px;
    background: linear-gradient(to bottom, var(--light-color), white);
}

.iot-solutions h2 {
    text-align: center;
    font-size: 2.5rem;
    color: var(--dark-color);
    margin-bottom: 3rem;
}

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

.solution {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

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

.solution-image {
    font-size: 4rem;
    text-align: center;
    margin-bottom: 1rem;
}

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

.solution-features {
    list-style: none;
    margin-top: 1.5rem;
}

.solution-features li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.solution-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

.data-insights {
    padding: 80px 20px;
    background-color: var(--dark-color);
    color: white;
}

.data-insights h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.data-insights .intro {
    color: rgba(255, 255, 255, 0.9);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    backdrop-filter: blur(10px);
}

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

.data-usage {
    margin-top: 4rem;
}

.data-usage h3 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
}

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

.usage-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 10px;
}

.usage-icon {
    font-size: 2rem;
}

.contact {
    padding: 80px 20px;
    background-color: white;
}

.contact h2 {
    text-align: center;
    font-size: 2.5rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.contact .container > p {
    text-align: center;
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 3rem auto;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.submit-button {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.3);
}

.submit-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.form-message {
    padding: 15px 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-weight: 500;
    transition: opacity 0.3s ease;
}

.form-message.success {
    background-color: #d1fae5;
    color: #065f46;
    border: 2px solid #10b981;
}

.form-message.error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 2px solid #ef4444;
}

footer {
    background-color: var(--dark-color);
    color: white;
    padding: 3rem 20px 1rem;
}

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

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

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

.social-links a {
    color: white;
    text-decoration: none;
    transition: color 0.3s;
}

.social-links a:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
}

@media (max-width: 768px) {
    .nav-links {
        gap: 1rem;
        font-size: 0.9rem;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .benefits-grid,
    .solution-showcase {
        grid-template-columns: 1fr;
    }
}