:root {
    --primary-color: #3498db;
    --secondary-color: #2ecc71;
    --dark-bg: #1a1a1a;
    --darker-bg: #111;
    --light-text: #f0f0f0;
    --gray-text: #aaa;
    --accent-color: #e74c3c;
    --font-family: 'Roboto', sans-serif;
    --border-radius: 8px;
    --transition-speed: 0.3s;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3 {
    margin-bottom: 1rem;
    font-weight: 700;
}

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

ul {
    list-style: none;
}

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

section {
    padding: 80px 0;
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 12px 30px;
    border-radius: var(--border-radius);
    font-weight: bold;
    text-transform: uppercase;
    transition: background-color var(--transition-speed), transform 0.2s;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    margin-left: 10px;
}

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

/* Header */
header {
    background-color: var(--darker-bg);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.8rem;
    color: var(--primary-color);
    letter-spacing: 1px;
    margin-bottom: 0;
}

nav ul {
    display: flex;
    gap: 20px;
    align-items: center;
}

nav a {
    font-size: 1rem;
    font-weight: 500;
}

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

/* Hero Section */
.hero {
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://source.unsplash.com/1600x900/?electric-car,battery,technology'); /* Placeholder image */
    background-size: cover;
    background-position: center;
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.hero-content {
    max-width: 800px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.8);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    color: #ddd;
}

/* Features Section */
.features {
    background-color: #222;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: var(--primary-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--darker-bg);
    padding: 40px 20px;
    border-radius: var(--border-radius);
    text-align: center;
    transition: transform var(--transition-speed);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.feature-card p {
    color: var(--gray-text);
}

/* Capabilities Section */
.capabilities {
    background-color: var(--dark-bg);
    text-align: center;
}

.capability-content {
    max-width: 800px;
    margin: 0 auto;
}

.capabilities h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    color: var(--primary-color);
}

.capability-list {
    text-align: left;
    margin-top: 30px;
    display: inline-block;
}

.capability-list li {
    font-size: 1.2rem;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.capability-list i {
    color: var(--secondary-color);
    margin-right: 15px;
    font-size: 1.4rem;
}

/* Contact Section */
.contact {
    background-color: #222;
    text-align: center;
    padding: 100px 0;
}

.contact h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin-top: 50px;
    flex-wrap: wrap;
}

.contact-item {
    background-color: var(--darker-bg);
    padding: 30px;
    border-radius: var(--border-radius);
    min-width: 250px;
    transition: transform 0.3s;
}

.contact-item:hover {
    transform: scale(1.05);
}

.contact-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.contact-item h3 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.contact-item a {
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.1rem;
}

/* Footer */
footer {
    background-color: var(--darker-bg);
    padding: 40px 0;
    text-align: center;
    color: var(--gray-text);
    font-size: 0.9rem;
    border-top: 1px solid #333;
}

.disclaimer {
    font-size: 0.8rem;
    margin-bottom: 10px;
    font-style: italic;
    color: #888;
}

.footer-links {
    margin-top: 15px;
}

.footer-links a {
    color: var(--gray-text);
    margin: 0 5px;
    font-size: 0.85rem;
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .contact-info {
        flex-direction: column;
        align-items: center;
    }

    nav ul {
        display: none; /* Mobile menu implementation could go here */
    }
    
    .header .container {
        justify-content: center;
    }
    
    .header .logo {
        margin-bottom: 10px;
    }
}