:root { color-scheme: light; font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #111c32; background: #f7f8fb; }
* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; }
a, a:visited { color: inherit; text-decoration: none; }
a:focus-visible { outline: 3px solid #4b77ed; outline-offset: 6px; }
.hub-shell { min-height: 100vh; padding: 0 32px 48px; background: radial-gradient(ellipse at 80% 25%, #edf1fc 0, transparent 52%); }
.hub-container { width: min(1040px, 100%); margin: 0 auto; }
.hub-header { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 104px; border-bottom: 1px solid #e3e7ef; }
.hub-brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 850; letter-spacing: -.035em; font-size: 19px; }
.hub-mark { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 13px; background: #111c32; color: #79a4ff; font-size: 24px; }
.hub-header-note { color: #69758a; font-size: 12px; }
.hub-header + section { padding: 52px 0 36px; }
.hub-kicker { color: #5470a6; font-size: 11px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
.hub-title { margin: 20px 0; font-size: clamp(36px, 5vw, 60px); font-weight: 750; line-height: 1.12; letter-spacing: -.055em; }
.hub-title span { color: #64738e; }
.hub-intro { margin: 0; color: #657188; font-size: 16px; line-height: 1.6; }
.hub-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.hub-card { display: flex; flex-direction: column; padding: 28px; border: 1px solid #e0e5ef; border-radius: 20px; background: #fff; box-shadow: 0 4px 16px #14244704; transition: border-color .2s, transform .2s, box-shadow .2s; }
a.hub-card:hover { transform: translateY(-3px); border-color: #9fb7e9; box-shadow: 0 12px 28px #1424470b; }
.hub-card-icon { display: grid; place-items: center; flex-shrink: 0; width: 44px; height: 44px; margin-bottom: 22px; border-radius: 13px; background: #eff3fc; color: #426ad6; font-size: 26px; }
.hub-card h2 { margin: 0 0 12px; font-size: 23px; font-weight: 700; letter-spacing: -.035em; }
.hub-card p { margin: 0; color: #69758a; font-size: 14px; line-height: 1.85; }
.hub-card-link { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 24px; padding-top: 18px; border-top: 1px solid #edf0f5; color: #315ec7; font-size: 13px; font-weight: 650; }
.hub-card-link span { font-size: 20px; }
.hub-card-muted { grid-column: 1 / -1; flex-direction: row; align-items: center; gap: 18px; padding: 22px 26px; background: transparent; border-style: dashed; box-shadow: none; }
.hub-card-muted .hub-card-icon { margin: 0; background: #e9edf4; color: #8390a5; width: 36px; height: 36px; font-size: 20px; }
.hub-card-muted h2 { font-size: 14px; letter-spacing: -.015em; margin-bottom: 4px; }
.hub-card-muted p { font-size: 12px; }
.hub-card-muted .hub-card-link { margin: 0 0 0 auto; padding: 0; border: 0; color: #69758a; font-size: 11px; white-space: nowrap; }
@media (max-width: 640px) {
  .hub-shell { padding: 0 20px 32px; }
  .hub-header { height: 82px; }
  .hub-header-note { display: none; }
  .hub-header + section { padding: 40px 0 30px; }
  .hub-grid { grid-template-columns: 1fr; gap: 16px; }
  .hub-card { padding: 24px; }
  .hub-card-muted { flex-wrap: wrap; gap: 12px; }
  .hub-card-muted > div { flex: 1; }
  .hub-card-muted .hub-card-link { margin-left: 48px; }
}
@media (prefers-reduced-motion: reduce) { .hub-card { transition: none; } a.hub-card:hover { transform: none; } }