:root {
    --bg-main: #f9fafb;
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --border-color: #e5e7eb;
    --card-bg: #ffffff;
    --brand-green: #16a34a;
    --brand-red: #ef4444;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; background-color: var(--bg-main); color: var(--text-primary); display: flex; justify-content: center; align-items: center; min-height: 100vh; }

.hub-container { max-width: 800px; width: 100%; padding: 2rem; }

.hub-header { text-align: center; margin-bottom: 3rem; }
.hub-header h1 { font-size: 2.5rem; font-weight: 700; margin-bottom: 0.5rem; color: var(--text-primary); letter-spacing: -0.02em; }
.hub-header p { font-size: 1.1rem; color: var(--text-secondary); }

.hub-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }

.hub-card {
    background: var(--card-bg); border: 1px solid var(--border-color);
    border-radius: 12px; padding: 3rem 2rem;
    text-decoration: none; color: var(--text-primary); text-align: center;
    transition: all 0.2s; box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.hub-card:hover { border-color: var(--brand-green); box-shadow: 0 4px 6px rgba(0,0,0,0.05), 0 10px 15px -3px rgba(0,0,0,0.05); transform: translateY(-2px); }

.hub-card .icon { font-size: 3rem; margin-bottom: 1.5rem; }
.hub-card h2 { font-size: 1.25rem; font-weight: 600; margin-bottom: 0.5rem; }
.hub-card p { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.5; }

@media (max-width: 768px) {
    .hub-actions { grid-template-columns: 1fr; }
}