/* Storage Hub — "Pack the unit" puzzle (version 4.1). */
.pp-dialog{width:min(760px,calc(100vw - 24px));max-height:calc(100dvh - 24px);padding:0;border:0;border-radius:16px;background:#fff;color:#172847;font-family:Archivo,Arial,sans-serif;box-shadow:0 30px 80px -20px rgba(0,20,60,.55);overflow:auto}
.pp-dialog::backdrop{background:rgba(6,20,48,.62)}
.pp-dialog *{box-sizing:border-box}
.pp-dialog [hidden]{display:none!important}
.pp-dialog button{font:inherit;cursor:pointer;touch-action:manipulation}
.pp-dialog button:focus-visible{outline:3px solid #e2a51b;outline-offset:2px}
html.pp-open{overflow:hidden}
.pp-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;padding:18px 20px 10px;background:linear-gradient(90deg,#0034a7,#1d4fc4);color:#fff}
.pp-kicker{display:block;font-size:11px;font-weight:800;letter-spacing:.14em;color:#cbd9f3}
.pp-head h3{margin:2px 0 0;font-size:22px;color:#fff}
.pp-close{flex:none;width:40px;height:40px;border:1px solid rgba(255,255,255,.4);border-radius:50%;background:transparent;color:#fff;font-size:24px;line-height:1}
.pp-close:hover{background:rgba(255,255,255,.15)}
.pp-levels{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:6px;padding:12px 20px 0}
.pp-level{display:flex;flex-direction:column;align-items:center;gap:2px;min-height:48px;padding:6px 4px;border:1px solid #d1daef;border-radius:9px;background:#f6f8fc;color:#172847}
.pp-level b{font-size:14px}
.pp-level small{font-size:11px;color:#4f5c6e;letter-spacing:.04em;white-space:nowrap}
.pp-level.is-current{border-color:#0034a7;background:#eaf0fd;box-shadow:inset 0 0 0 1px #0034a7}
.pp-level:disabled{opacity:.5;cursor:not-allowed}
.pp-goal{margin:10px 20px 6px;font-size:14px;line-height:1.5;color:#4f5c6e}
.pp-stats{display:flex;flex-wrap:wrap;gap:6px 14px;margin:0 20px 10px;font-size:13px;font-weight:700;color:#172847}
.pp-worth b{color:#e2a51b;letter-spacing:.06em}
.pp-board-wrap{padding:0 20px;display:flex;justify-content:center}
.pp-board{display:grid;gap:0;padding:6px;background:#dfe5ee;border:3px solid #7a8798;border-radius:6px;box-shadow:inset 0 0 0 1px #c2cbd8}
.pp-cell{width:var(--pp-cell);height:var(--pp-cell);padding:0;border:1px dashed #c3ccd9;background:#eef2f7;border-radius:0}
.pp-cell:hover{background:#e3eaf4}
.pp-cell.is-filled{border:0;box-shadow:inset 0 0 0 0 transparent;filter:saturate(.9)}
.pp-cell.is-filled.e-t{border-top:2px solid rgba(0,0,0,.35)}.pp-cell.is-filled.e-r{border-right:2px solid rgba(0,0,0,.35)}
.pp-cell.is-filled.e-b{border-bottom:2px solid rgba(0,0,0,.35)}.pp-cell.is-filled.e-l{border-left:2px solid rgba(0,0,0,.35)}
.pp-cell.is-ghost{background:#9fc2ff!important;border:1px solid #0034a7}
.pp-cell.is-blocked{background:#f5b5ad!important;border:1px solid #c8473d}
.pp-cell.is-hint{outline:3px solid #e2a51b;outline-offset:-3px}
.pp-controls{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin:12px 20px 0}
.pp-controls button{min-height:42px;padding:8px 14px;border:1px solid #c8d6e3;border-radius:8px;background:#fff;color:#0034a7;font-size:14px;font-weight:700}
.pp-controls .pp-rotate{background:#0034a7;border-color:#0034a7;color:#fff}
.pp-controls kbd{display:inline-block;margin-left:4px;padding:0 5px;border-radius:4px;background:rgba(255,255,255,.2);font:inherit;font-size:12px}
.pp-status{margin:8px 20px;min-height:22px;text-align:center;font-size:13.5px;color:#4f5c6e}
.pp-tray{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;padding:0 20px 18px}
.pp-piece{display:flex;flex-direction:column;align-items:center;gap:5px;min-width:72px;padding:8px;border:1px solid #d1daef;border-radius:10px;background:#f8fafd;color:#172847}
.pp-piece:hover{border-color:#0034a7}
.pp-piece.is-selected{border-color:#0034a7;background:#eaf0fd;box-shadow:inset 0 0 0 2px #0034a7}
.pp-mini{display:grid;gap:1px}
.pp-mini i{display:block;width:14px;height:14px;border-radius:2px}
.pp-mini i.pp-gap{background:transparent}
.pp-piece small{font-size:11.5px;font-weight:600;max-width:96px;text-align:center;line-height:1.25}
.pp-win{display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px;margin:0 20px 20px;padding:14px 16px;border-radius:12px;background:#eaf0fd;border:1px solid #9fc2ff}
.pp-win strong{font-size:17px;color:#0034a7}
.pp-win span{flex:1 1 220px;font-size:14px;color:#4f5c6e}
.pp-next{min-height:42px;padding:8px 16px;border:0;border-radius:8px;background:#0034a7;color:#fff;font-weight:700}
@media(max-width:560px){
  .pp-dialog{width:calc(100vw - 12px);max-height:calc(100dvh - 12px);border-radius:12px}
  .pp-head{padding:14px 14px 8px}.pp-head h3{font-size:19px}
  .pp-levels{padding:10px 12px 0;gap:4px}.pp-level b{font-size:12.5px}.pp-level small{font-size:10px}
  .pp-goal,.pp-stats,.pp-controls,.pp-status{margin-left:12px;margin-right:12px}
  .pp-goal{font-size:13px}
  .pp-board-wrap,.pp-tray{padding-left:12px;padding-right:12px}
  .pp-piece{min-width:64px;padding:6px}.pp-mini i{width:11px;height:11px}
  .pp-win{margin:0 12px 14px}
}