.hub {
  max-width: 560px; margin: 0 auto;
  padding: calc(env(safe-area-inset-top) + 28px) 18px calc(env(safe-area-inset-bottom) + 28px);
}
header h1 { margin: 0 0 6px; font-size: 32px; letter-spacing: -.5px; }
header p { margin: 0 0 22px; color: var(--muted); }

.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.tile {
  position: relative; display: flex; flex-direction: column; justify-content: flex-end;
  aspect-ratio: 1 / 1.1; padding: 16px; border-radius: var(--radius); text-align: left;
  background: linear-gradient(160deg, var(--c) 0%, color-mix(in srgb, var(--c) 35%, #111) 100%);
  box-shadow: 0 10px 24px -12px var(--c);
  overflow: hidden;
}
.tile .icon { position: absolute; top: 12px; right: 14px; font-size: 44px; }
.tile .title { font-size: 20px; font-weight: 700; }
.tile .sub { font-size: 13px; opacity: .85; font-weight: 500; }
.tile .badge {
  position: absolute; top: 14px; left: 14px; font-size: 11px; font-weight: 700;
  padding: 3px 8px; border-radius: 99px; background: rgba(0,0,0,.35); text-transform: uppercase;
}
.tile[disabled] { opacity: .45; }
.tile.busy { opacity: .7; }

.join { display: flex; gap: 10px; margin-top: 26px; }
.join input {
  flex: 1; min-width: 0; padding: 14px 16px; border: 0; border-radius: 14px; background: var(--panel);
  text-transform: uppercase; letter-spacing: 4px; font-weight: 700;
  -webkit-user-select: text; user-select: text;
}
.error { color: #ff6b6b; margin-top: 12px; }
.tile .stats { font-size: 12px; opacity: .8; margin-top: 4px; min-height: 1em; }
.tile .bot {
  position: absolute; top: 12px; left: 12px; padding: 5px 10px; border-radius: 99px; font-size: 12px; font-weight: 700;
  background: rgba(0,0,0,.35);
}
.tile .badge:has(~ .bot) { display: none; }