* {
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    margin: 0;
    background: #0f172a;
    color: #e5e7eb;
    line-height: 1.6;
}

header {
    background: linear-gradient(135deg, #22c55e, #16a34a);
    padding: 50px 20px;
    text-align: center;
    color: #ffffff;
}

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

section {
    padding: 40px 20px;
    max-width: 900px;
    margin: auto;
}

h2 {
    border-bottom: 2px solid #22c55e;
    padding-bottom: 5px;
    margin-bottom: 20px;
}

.card {
    background: #1e293b;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 15px;
}

.card h3 {
    margin-top: 0;
    color: #22c55e;
}

ul, ol {
    margin-left: 20px;
}

code {
    background: #020617;
    padding: 4px 6px;
    border-radius: 5px;
    color: #22c55e;
}

footer {
    background: #020617;
    text-align: center;
    padding: 20px;
    font-size: 0.9rem;
    color: #94a3b8;
}