/* Basic Resets & Global Styles */
:root {
    --primary-color: #007bff; /* A clean blue for buttons, accents */
    --accent-color: #28a745; /* Green for success/highlights */
    --text-color: #e0e0e0; /* Light grey for body text */
    --heading-color: #ffffff; /* White for headings */
    --background-dark: #1a1a2e; /* Darker background */
    --background-light-dark: #26263e; /* Slightly lighter dark background */
    --card-background: #2a2a47; /* Card background */
    --border-color: #4a4a6e; /* Subtle border for elements */
    --font-family: 'IBM Plex Sans', sans-serif;
}

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

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-dark);
}

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

.section-padding {
    padding: 80px 0;
}

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

.bg-light-dark {
    background-color: var(--background-light-dark);
}

h1, h2, h3 {
    color: var(--heading-color);
    margin-bottom: 20px;
    line-height: 1.2;
}

h1 {
    font-size: 3.5em;
    font-weight: 700;
}

h2 {
    font-size: 2.5em;
    font-weight: 600;
    margin-bottom: 40px;
}

h3 {
    font-size: 1.8em;
    font-weight: 600;
    margin-bottom: 15px;
}

p {
    margin-bottom: 20px;
}

/* Buttons */
.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: #fff;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background-color: #0056b3; /* Darker shade of primary */
}

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

.large-btn {
    padding: 18px 40px;
    font-size: 1.2em;
}

.small-text {
    font-size: 0.9em;
    color: #a0a0a0;
    margin-top: 20px;
}

/* Header & Navigation */
.hero-section {
    background: linear-gradient(135deg, var(--background-dark), #0f0f1c);
    padding: 50px 0 100px;
    text-align: center;
    position: relative; /* For the subtle background pattern */
    overflow: hidden;
}

/* Optional: Background pattern for hero */
.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(0,123,255,0.05) 0%, transparent 70%);
    opacity: 0.3;
    z-index: 0;
}

.hero-section .container {
    position: relative; /* Ensure content is above pseudo-element */
    z-index: 1;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 80px;
}

.logo {
    font-size: 1.8em;
    font-weight: 700;
    color: var(--heading-color);
    text-transform: lowercase;
}

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

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

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

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

.hero-content .subtitle {
    font-size: 1.4em;
    margin-bottom: 40px;
    color: #c0c0c0;
}

/* Problem/Solution Icon Grid */
.icon-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.icon-grid .grid-item {
    background-color: var(--card-background);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    text-align: center;
}

.icon-grid .grid-item img {
    margin-bottom: 20px;
    /* Styles for placeholder image icons */
    border-radius: 50%;
    background-color: var(--primary-color);
    padding: 10px;
}

/* How It Works Steps */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.step-card {
    background-color: var(--card-background);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    text-align: center;
    position: relative;
    overflow: hidden; /* For the subtle step number background */
}

.step-number {
    font-size: 3em;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 20px;
    display: inline-block;
    padding: 0 15px;
    border-radius: 50%;
    background-color: rgba(0, 123, 255, 0.1);
    line-height: normal;
}

/* Features Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-item {
    background-color: var(--card-background);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    text-align: center;
}

.feature-item img {
    margin-bottom: 20px;
    /* Styles for placeholder image icons */
    border-radius: 50%;
    background-color: var(--primary-color);
    padding: 10px;
}


/* Footer */
.footer {
    background-color: #11111d;
    color: #a0a0a0;
    padding: 40px 0;
    text-align: center;
    font-size: 0.9em;
}

.footer-links {
    margin-top: 20px;
}

.footer-links a {
    color: #a0a0a0;
    text-decoration: none;
    margin: 0 15px;
    transition: color 0.3s ease;
}

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

/* Responsive Design */
@media (max-width: 1024px) {
    h1 {
        font-size: 2.8em;
    }
    h2 {
        font-size: 2.2em;
    }
    .hero-content .subtitle {
        font-size: 1.2em;
    }
}

@media (max-width: 768px) {
    .section-padding {
        padding: 60px 0;
    }
    h1 {
        font-size: 2.2em;
    }
    h2 {
        font-size: 1.8em;
    }
    h3 {
        font-size: 1.5em;
    }
    .icon-grid, .steps, .feature-grid {
        grid-template-columns: 1fr;
    }
    nav {
        flex-direction: column;
        margin-bottom: 50px;
    }
    .nav-links {
        margin-top: 20px;
    }
    .nav-links li {
        margin: 0 15px;
    }
}

@media (max-width: 480px) {
    .btn {
        padding: 12px 25px;
    }
    .large-btn {
        padding: 15px 30px;
        font-size: 1em;
    }
    .hero-section {
        padding-top: 30px;
        padding-bottom: 70px;
    }
    .hero-content .subtitle {
        font-size: 1em;
    }
    .footer-links a {
        display: block;
        margin: 10px auto;
    }
}
3. script.js (Minor JavaScript)
Create a file named script.js in the same directory. This is just for a small touch, like updating the copyright year automatically.

document.addEventListener('DOMContentLoaded', function() {
    const currentYearSpan = document.getElementById('current-year');
    if (currentYearSpan) {
        currentYearSpan.textContent = new Date().getFullYear();
    }

    // Optional: Smooth scroll for internal links
    document.querySelectorAll('a[href^="#"]').forEach(anchor => {
        anchor.addEventListener('click', function (e) {
            e.preventDefault();

            document.querySelector(this.getAttribute('href')).scrollIntoView({
                behavior: 'smooth'
            });
        });
    });
});