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

:root {
    --bg: #0a0a0f;
    --surface: #12121a;
    --border: #1e1e2e;
    --text: #e0e0e8;
    --text-muted: #888898;
    --accent: #7c6fea;
    --accent-hover: #9589f0;
    --success: #4ade80;
    --warning: #fbbf24;
    --error: #f87171;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

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

.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

nav .brand {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text);
}

nav .links { display: flex; gap: 1.5rem; align-items: center; }
nav .links a { color: var(--text-muted); font-size: 0.9rem; }
nav .links a:hover { color: var(--text); }

h1 { font-size: 2rem; margin-bottom: 0.5rem; }
h2 { font-size: 1.4rem; margin-bottom: 0.5rem; }
h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }

.hero {
    text-align: center;
    padding: 4rem 0 3rem;
}

.hero p { color: var(--text-muted); font-size: 1.1rem; max-width: 500px; margin: 0 auto; }

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin: 2rem 0;
}

.feature {
    padding: 1.25rem;
}

.feature h3 { margin-bottom: 0.25rem; }
.feature p { color: var(--text-muted); font-size: 0.9rem; }

.pricing {
    text-align: center;
    padding: 2rem 0;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent);
}

.price span { font-size: 1rem; color: var(--text-muted); font-weight: 400; }

.referral-info {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: background 0.2s;
    text-align: center;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}

.btn-primary:hover {
    background: var(--accent-hover);
    color: #fff;
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}

.btn-secondary:hover {
    border-color: var(--accent);
}

.btn-block { display: block; width: 100%; }

input[type="text"],
input[type="password"],
input[type="email"],
textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg);
    color: var(--text);
    font-size: 1rem;
    margin-bottom: 1rem;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
}

label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.form-group { margin-bottom: 1rem; }

.alert {
    padding: 0.75rem 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.alert-success { background: rgba(74, 222, 128, 0.1); border: 1px solid rgba(74, 222, 128, 0.3); color: var(--success); }
.alert-error { background: rgba(248, 113, 113, 0.1); border: 1px solid rgba(248, 113, 113, 0.3); color: var(--error); }
.alert-warning { background: rgba(251, 191, 36, 0.1); border: 1px solid rgba(251, 191, 36, 0.3); color: var(--warning); }

.status-badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
}

.status-active { background: rgba(74, 222, 128, 0.15); color: var(--success); }
.status-inactive { background: rgba(136, 136, 152, 0.15); color: var(--text-muted); }
.status-expired { background: rgba(248, 113, 113, 0.15); color: var(--error); }

.payment-methods {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin: 1.5rem 0;
}

.payment-method {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    cursor: pointer;
    transition: border-color 0.2s;
}

.payment-method:hover { border-color: var(--accent); }
.payment-method.selected { border-color: var(--accent); background: rgba(124, 111, 234, 0.05); }

.payment-method input[type="radio"] { display: none; }
.payment-method .method-name { font-weight: 600; }
.payment-method .method-desc { font-size: 0.85rem; color: var(--text-muted); }

.crypto-address {
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    word-break: break-all;
    padding: 0.75rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    margin: 0.5rem 0;
}

.hidden { display: none; }

.stats { display: flex; gap: 2rem; margin: 1rem 0; }
.stat { text-align: center; }
.stat-value { font-size: 1.5rem; font-weight: 700; color: var(--accent); }
.stat-label { font-size: 0.8rem; color: var(--text-muted); }

.table { width: 100%; border-collapse: collapse; margin: 1rem 0; }
.table th, .table td { padding: 0.5rem 0.75rem; text-align: left; border-bottom: 1px solid var(--border); font-size: 0.85rem; }
.table th { color: var(--text-muted); font-weight: 600; }

footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    border-top: 1px solid var(--border);
    margin-top: 4rem;
}

@media (max-width: 600px) {
    .features-grid { grid-template-columns: 1fr; }
    .stats { flex-direction: column; gap: 1rem; }
    h1 { font-size: 1.5rem; }
}