:root {
    --bg-color: #0d1117;
    --text-color: #c9d1d9;
    --accent-color: #58a6ff;
    --secondary-accent: #3fb950;
    --border-color: #30363d;
    --card-bg: #161b22;
}

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

header {
    border-bottom: 1px solid var(--border-color);
    padding: 2rem 0;
    text-align: center;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero {
    padding: 4rem 0;
    text-align: center;
}

.hero img {
    max-width: 200px;
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 3rem;
    color: #fff;
    margin: 0;
}

.hero p {
    font-size: 1.5rem;
    color: #8b949e;
}

.cta {
    margin-top: 2rem;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.2s;
}

.btn-primary {
    background-color: #238636;
    color: #fff;
}

.btn-primary:hover {
    background-color: #2ea043;
}

.btn-secondary {
    background-color: #21262d;
    color: #c9d1d9;
    border: 1px solid var(--border-color);
    margin-left: 1rem;
}

.btn-secondary:hover {
    background-color: #30363d;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding: 4rem 0;
}

.feature-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: 8px;
}

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

footer {
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    text-align: center;
    color: #8b949e;
    font-size: 0.9rem;
}

pre {
    background-color: #000;
    padding: 1rem;
    border-radius: 6px;
    overflow-x: auto;
    border: 1px solid var(--border-color);
}

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