/* Base styles */
:root {
    --primary-color: #4a6ee0;
    --secondary-color: #6c757d;
    --background-color: #f8f9fa;
    --text-color: #333;
    --code-bg: #f5f5f5;
    --card-bg: #fff;
    --border-color: #e9ecef;
    --header-bg: #343a40;
    --header-text: #fff;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: 1rem;
    line-height: 1.2;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
    margin-top: 2rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

h3 {
    font-size: 1.5rem;
    margin-top: 1.5rem;
}

p {
    margin-bottom: 1rem;
}

a {
    color: var(--primary-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Header */
header {
    background-color: var(--header-bg);
    color: var(--header-text);
    padding: 4rem 0;
    text-align: center;
    margin-bottom: 2rem;
}

header h1 {
    font-size: 3.5rem;
    margin-bottom: 0.5rem;
}

.tagline {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Buttons */
.buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-weight: 600;
    transition: all 0.3s ease;
}

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

.button.secondary {
    background-color: transparent;
    color: white;
    border: 2px solid white;
}

.button:hover {
    transform: translateY(-2px);
    text-decoration: none;
}

.button.primary:hover {
    background-color: #3a5bbf;
}

.button.secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Features */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.feature-card {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.feature-card h3 {
    margin-top: 0;
    color: var(--primary-color);
}

/* Code blocks */
pre {
    background-color: var(--code-bg);
    border-radius: 4px;
    padding: 1rem;
    overflow-x: auto;
    margin: 1.5rem 0;
    border: 1px solid var(--border-color);
}

code {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.9rem;
}

pre.output {
    background-color: #2d2d2d;
    color: #f8f8f2;
}

/* Sections */
section {
    margin-bottom: 3rem;
}

/* Footer */
footer {
    background-color: var(--header-bg);
    color: var(--header-text);
    padding: 2rem 0;
    text-align: center;
    margin-top: 4rem;
}

/* Responsive */
@media (max-width: 768px) {
    header {
        padding: 3rem 0;
    }
    
    header h1 {
        font-size: 2.5rem;
    }
    
    .tagline {
        font-size: 1.2rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
}