:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --background-color: #f8f9fa;
    --text-color: #333;
    --code-bg: #e9ecef;
    --hero-bg: #212529;
    --hero-text: #fff;
    --border-color: #dee2e6;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    color: var(--text-color);
    background-color: var(--background-color);
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Hero Section */
.hero {
    background-color: var(--hero-bg);
    color: var(--hero-text);
    padding: 60px 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 10px;
}

.tagline {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 20px;
}

.description {
    max-width: 600px;
    margin: 0 auto 30px;
    font-size: 1.1rem;
    opacity: 0.9;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: background-color 0.2s;
}

.btn:hover {
    background-color: #0056b3;
}

/* Sections */
section {
    padding: 40px 0;
    border-bottom: 1px solid var(--border-color);
}

section:last-of-type {
    border-bottom: none;
}

h2 {
    color: var(--hero-bg);
    margin-bottom: 20px;
}

h3 {
    margin-top: 0;
}

/* Code Blocks */
pre {
    background-color: var(--code-bg);
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}

code {
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
    background-color: var(--code-bg);
    padding: 2px 4px;
    border-radius: 3px;
    font-size: 0.9em;
}

pre code {
    padding: 0;
    background-color: transparent;
}

/* Lists */
.flow-list, .cmd-list {
    margin-bottom: 20px;
}

.flow-list li, .cmd-list li {
    margin-bottom: 10px;
}

/* Grid Layout */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.card {
    background: white;
    padding: 20px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.card h3 {
    color: var(--primary-color);
    font-family: monospace;
}

/* Highlight Box */
.highlight-box {
    background-color: #e3f2fd;
    padding: 20px;
    border-left: 5px solid var(--primary-color);
    margin-top: 20px;
}

/* Footer */
footer {
    background-color: var(--hero-bg);
    color: #adb5bd;
    padding: 40px 0;
    text-align: center;
    margin-top: 40px;
}

footer nav {
    margin-top: 20px;
}

footer a {
    color: #adb5bd;
    text-decoration: none;
    margin: 0 10px;
}

footer a:hover {
    color: white;
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 600px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    .grid {
        grid-template-columns: 1fr;
    }
}