* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #0d1117;
    color: #c9d1d9;
    line-height: 1.6;
}
.container { max-width: 900px; margin: 0 auto; padding: 2rem; }
header { text-align: center; margin-bottom: 3rem; }
header h1 { font-size: 2.5rem; color: #ff6b35; margin-bottom: 0.5rem; }
header p { color: #8b949e; }
a { color: #58a6ff; text-decoration: none; }
a:hover { text-decoration: underline; }

.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.5rem; }
.plan-card {
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    transition: border-color 0.2s;
}
.plan-card:hover { border-color: #ff6b35; }
.plan-card h2 { font-size: 1.2rem; margin-bottom: 0.5rem; }
.plan-card .price { font-size: 2rem; font-weight: bold; color: #ff6b35; margin: 0.5rem 0; }
.plan-card p { color: #8b949e; font-size: 0.9rem; margin-bottom: 1rem; }
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: #ff6b35;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s;
}
.btn:hover { background: #e55a2b; text-decoration: none; }
.btn.small { padding: 0.4rem 0.8rem; font-size: 0.85rem; }

.checkout-card, .success-card {
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 8px;
    padding: 2rem;
    max-width: 500px;
    margin: 0 auto;
}
.checkout-card h2, .success-card h2 { margin-bottom: 1rem; }
label { display: block; margin: 1rem 0 0.25rem; color: #8b949e; }
input, select {
    width: 100%;
    padding: 0.6rem;
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: 6px;
    color: #c9d1d9;
    font-size: 1rem;
}
input:focus, select:focus { outline: none; border-color: #ff6b35; }
form .btn { margin-top: 1.5rem; width: 100%; }

.code-display {
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: 6px;
    padding: 1rem;
    margin: 1rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.code-display code {
    flex: 1;
    font-size: 1.1rem;
    color: #58a6ff;
    word-break: break-all;
}
.instructions { margin: 1.5rem 0; }
.instructions pre {
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: 6px;
    padding: 1rem;
    overflow-x: auto;
    font-size: 0.85rem;
    color: #8b949e;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    font-size: 0.85rem;
}
th, td { padding: 0.5rem; text-align: left; border-bottom: 1px solid #30363d; }
th { color: #8b949e; font-weight: 600; }
section { margin-bottom: 2rem; }
section h2 { margin-bottom: 1rem; color: #ff6b35; }
.inline-form { display: flex; gap: 0.5rem; align-items: center; }
.inline-form select, .inline-form input { width: auto; }
.alert {
    background: #1a3a1a;
    border: 1px solid #3fb950;
    color: #3fb950;
    padding: 0.75rem 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
}
footer { text-align: center; margin-top: 3rem; color: #8b949e; }