:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --text-color: #1f2937;
    --light-text: #6b7280;
    --background: #ffffff;
    --light-background: #f3f4f6;
}

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

/* remove bullet points from list */
li {
    list-style: none;
}


body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--text-color);
    line-height: 1.5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navbar */
.navbar {
    padding: 1.5rem 0;
    background: var(--background);
    border-bottom: 1px solid #eee;
}

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

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    border: none;
}

.btn-secondary {
    background: transparent;
    color: var(--text-color);
    border: none;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    padding: 6rem 0;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

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

.cta-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

/* Topics */
.topics {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.topic-tag {
    background: var(--light-background);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    color: var(--primary-color);
}

/* Email Signup Form */
.email-signup {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    max-width: 500px;
}

.email-signup input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 1px solid #e5e7eb;
    border-radius: 0.5rem;
    font-size: 1rem;
}

/* Social Links */
.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    color: var(--text-color);
    transition: color 0.2s ease;
}

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

.social-link i {
    width: 24px;
    height: 24px;
}

.main-image {
    width: 100%;
    height: auto;
    border-radius: 1rem;
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

/* Preview Section Styling */
.preview {
    margin-top: 2rem;
    background: var(--light-background);
    padding: 1.5rem;
    border-radius: 0.75rem;
}

.preview h3 {
    color: var(--text-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.insight-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.insight-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--light-text);
    transition: color 0.2s ease;
}

.insight-list li:hover {
    color: var(--primary-color);
}

.insight-list i {
    width: 18px;
    height: 18px;
    stroke-width: 2;
    color: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .nav-links {
        display: none;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .cta-buttons {
        justify-content: center;
    }
}