:root {
  --pink: #ff8fab;
  --gold: #ffd166;
  --ink: #2b1d3d;
  --card: rgba(255, 255, 255, 0.92);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family: system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: linear-gradient(165deg, #ffc8dd 0%, #bde0fe 45%, #cdb4db 100%);
}

.hub {
  max-width: 420px;
  margin: 0 auto;
  padding: 24px 16px 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-height: 100dvh;
}

.hub-head {
  text-align: center;
}

.hub-ribbon {
  display: inline-block;
  margin: 0 0 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--gold);
  font-weight: 800;
  font-size: 0.85rem;
}

.hub-head h1 {
  margin: 0;
  font-size: 1.65rem;
}

.hub-tag {
  margin: 6px 0 0;
  opacity: 0.75;
  font-weight: 700;
}

.hub-cards {
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex: 1;
}

.hub-card {
  position: relative;
  padding: 18px 16px;
  border-radius: 20px;
  background: var(--card);
  box-shadow: 0 8px 24px rgba(43, 29, 61, 0.12);
  text-decoration: none;
  color: inherit;
}

.hub-card-simple:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(43, 29, 61, 0.16);
}

.hub-card h2 {
  margin: 8px 0 6px;
  font-size: 1.2rem;
}

.hub-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.35;
  opacity: 0.85;
}

.hub-card-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  background: #e8ffe8;
  color: #1b5e20;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hub-card-3d.is-locked .hub-card-badge {
  background: #eee;
  color: #666;
}

.hub-card-3d.is-unlocked .hub-card-badge {
  background: #fff3cd;
  color: #856404;
}

.hub-btn {
  margin-top: 12px;
  width: 100%;
  min-height: 48px;
  border: none;
  border-radius: 14px;
  background: linear-gradient(180deg, #ffe08a, var(--gold));
  font-weight: 800;
  font-size: 1rem;
  cursor: pointer;
}

.hub-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.hub-foot {
  text-align: center;
  font-size: 0.85rem;
  font-weight: 700;
}

.hub-foot-note {
  margin: 6px 0 0;
  opacity: 0.6;
  font-size: 0.75rem;
}