/* Basic Reset & Body Styling */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #121212; /* Dark background */
    color: #e0e0e0; /* Light grey text */
    line-height: 1.6;
}

a {
    color: #4dabf7; /* Light blue links */
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #8ce99a; /* Light green on hover */
}

/* Header & Navigation */
header {
    background-color: rgba(25, 25, 25, 0.8); /* Slightly lighter dark, semi-transparent */
    padding: 1rem 5%;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #333;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #ffffff;
}

nav ul {
    list-style: none;
    display: flex;
}

nav ul li {
    margin-left: 2rem;
}

nav ul li a {
    font-weight: 500;
}

/* Hero Section with CSS Animation */
.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center; /* Center content */
    padding: 4rem 5%;
    position: relative; /* Needed for content positioning */
    text-align: center; /* Center hero text */
    /* Animated Gradient Background */
    background: linear-gradient(-45deg, #1a1a1a, #252525, #1f3a4f, #121212);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
}

/* Keyframes for the background animation */
@keyframes gradientBG {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.hero-content {
    position: relative; /* Ensure content is above background */
    z-index: 2;
    max-width: 800px; /* Limit content width */
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: #ffffff;
    line-height: 1.2;
}

.hero p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: #cccccc;
}

.cta-button {
    display: inline-block;
    background-color: #4dabf7; /* Light blue */
    color: #121212; /* Dark text */
    padding: 0.8rem 1.8rem;
    border-radius: 5px;
    font-weight: bold;
    font-size: 1rem;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.cta-button:hover {
    background-color: #8ce99a; /* Light green */
    transform: translateY(-2px);
    color: #121212;
}

/* Features Section */
.features {
    padding: 4rem 5%;
    background-color: #1a1a1a;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #ffffff;
}

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

.feature-item {
    background-color: #252525;
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid #333;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.feature-item h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: #e0e0e0;
}

/* How It Works Section */
.how-it-works {
    padding: 4rem 5%;
}

.how-it-works h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #ffffff;
}

.steps-container {
    display: flex;
    justify-content: space-around;
    gap: 2rem;
    text-align: center;
}

.step {
    max-width: 30%;
}

.step h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #8ce99a; /* Highlight step title */
}

/* Demo CTA Section */
.demo-cta {
    padding: 4rem 5%;
    background-color: #252525; /* Slightly different dark shade */
    text-align: center;
}

.demo-cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #ffffff;
}

.demo-cta p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: #cccccc;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 5%;
    margin-top: 2rem;
    border-top: 1px solid #333;
    color: #888;
}

/* Responsive Design */
@media (max-width: 768px) {
    nav ul {
        display: none; /* Simple hide for mobile, could implement burger menu */
    }
    .hero h1 {
        font-size: 2.5rem;
    }
    .steps-container {
        flex-direction: column;
        align-items: center;
    }
    .step {
        max-width: 80%;
        margin-bottom: 1.5rem;
    }
}