/* 1.2 — paper controls, soft raised edges, unified 24px line icons. */
:root{--control-face:#fffef8;--control-edge:#b99f72;--control-base:#ded0b5;--control-disabled:#e9e4d5;--control-disabled-ink:#817b6c}
button{font-family:inherit;-webkit-tap-highlight-color:transparent}
.soft-button,.rotate-button,.ship-button,.primary-button,.icon-button,.text-button,.modal-close,.account-entry,.layer-tab,.level-dot,.level-nav,.account-overlay .account-panel button{
  border:1px solid var(--control-edge);border-radius:9px;background:linear-gradient(180deg,var(--control-face),#f5f2e9);
  box-shadow:inset 0 1px 0 #fff,0 2px 0 var(--control-base);color:var(--ink);font-weight:600;letter-spacing:0;
  transition:background-color 100ms,box-shadow 100ms,transform 100ms,border-color 100ms;
}
button:focus-visible{outline:2px solid var(--green);outline-offset:2px}
.soft-button:active:not(:disabled),.rotate-button:active:not(:disabled),.ship-button:active:not(:disabled),.primary-button:active:not(:disabled),.icon-button:active,.text-button:active,.account-entry:active,.layer-tab:active,.level-nav:active:not(:disabled),.account-overlay .account-panel button:active:not(:disabled){transform:translateY(1px);box-shadow:inset 0 1px 3px #27344716}
.soft-button:disabled,.rotate-button:disabled,.primary-button:disabled,.level-nav:disabled,.account-overlay .account-panel button:disabled{
  color:var(--control-disabled-ink);background:var(--control-disabled);border-color:#d3c9b4;box-shadow:inset 0 1px #fff8;opacity:1;cursor:default;transform:none;
}
.control-icon{display:block;width:20px;height:20px;flex:none;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.icon-button{border-radius:10px;color:#397d68}
.icon-button svg{stroke-width:1.8}.help-button{font-size:19px;font-weight:700}
#account-slot .account-entry{border-radius:8px;border:1px solid var(--control-edge);background:var(--control-face);box-shadow:inset 0 1px #fff,0 2px var(--control-base);font-weight:600;color:#626d68}
#belt-toggle{padding:5px 10px;gap:8px;border-radius:8px;color:#397d68;font-size:11px}
#belt-status{color:#626d68}#belt-action{font-weight:700}
.packing-footer{padding:10px 20px 14px;display:block}
.board-tools{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));width:100%;gap:10px}
.soft-button{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;height:44px;padding:8px 12px;font-size:13px}
.soft-button span{display:inline;font-size:13px;margin:0}
.goods-actions{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.5fr);gap:10px;margin-top:auto;flex-shrink:0;min-width:0}
#selection-label{font-size:11px;color:#626d68;min-height:24px}
.rotate-button,.ship-button{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;min-width:0;min-height:44px;height:44px;margin:0;padding:8px 12px;font-size:13px;line-height:1.2}
.rotate-button>span{font-size:13px}.rotate-button kbd{font-size:9px;background:#ecefe6;color:#626d68}
.ship-button,.primary-button,.account-overlay .account-panel .account-primary{
  color:#fffef8;background:linear-gradient(180deg,#4f9278,#397d68);border:1px solid #2b6554;
  box-shadow:inset 0 1px #93bea2,0 3px 0 #2b6554;font-weight:700;
}
.ship-button:disabled{color:#626d68;background:#e3f3eb;border:1px solid #bbcbbf;box-shadow:inset 0 1px #fff9,0 2px #cdd8ca;opacity:1;transform:none}
.ship-button:not(:disabled):hover,.primary-button:not(:disabled):hover{background:linear-gradient(#579a7f,#397d68);box-shadow:inset 0 1px #93bea2,0 3px #2b6554;transform:none}
.ship-button:active:not(:disabled){transform:translateY(2px);box-shadow:inset 0 1px 3px #27344725}
.primary-button{min-height:44px;padding:11px 16px}.replay-button{min-height:40px;width:100%;margin-top:12px;padding:8px 12px}
.modal-close{display:grid;place-items:center;font-size:22px;width:36px;height:36px;top:10px;right:10px;border-radius:8px}
.account-overlay .account-panel button{padding:9px 12px;min-height:40px;font-size:13px}
.account-overlay .account-panel .account-tabs button.selected{border-color:#397d68;background:#e3f3eb;color:#397d68;box-shadow:inset 0 0 0 1px #397d68}
.layer-tab{border-radius:8px;box-shadow:none;background:#f5f2e9;border-color:#d1c5ac;color:#626d68}
.layer-tab.active{background:#fffef8;border-color:#397d68;color:#397d68;box-shadow:inset 0 0 0 1px #397d68,0 1px #d5ddcb}
.layer-tab.done{background:#e3f3eb;color:#397d68}.layer-tab.active .layer-stack{color:#397d68}
.box-option{background:#fffef808;border:1px solid #617060;border-radius:8px;box-shadow:0 2px #1f2d3a}
.box-option.selected{background:#397d6855;border-color:#b4cdb1;box-shadow:inset 0 0 0 1px #b4cdb1,0 2px #1f2d3a}
.box-option .box-check{background:#397d68;border-radius:4px;padding:1px 3px;color:#fffef8}
.piece-card{border-radius:8px;border-color:#c8b993;box-shadow:inset 0 1px #fff,0 2px #cbb994;background:linear-gradient(#fffef8,#f5f2e9)}
.piece-card.selected{border-color:#397d68;background:#fffef8;box-shadow:inset 0 0 0 1px #397d68,0 2px #8eab95}
.piece-card.selected:after{border-radius:4px}.piece-card.packed{background:#e3ebd8;border-color:#a8b59b;box-shadow:none}
.board-cell:focus-visible{outline-offset:-3px;z-index:2}
#level-dots .level-dot,#level-dots .level-nav{border-radius:8px;border-color:#c8b993;background:#fffef8;color:#626d68;box-shadow:inset 0 1px #fff;font-weight:600}
#level-dots .level-dot.done{background:#e3f3eb;border-color:#aac5b2;color:#397d68}
#level-dots .level-dot.current{background:#397d68;border-color:#2b6554;color:#fffef8;box-shadow:inset 0 1px #8eb9a0}
#level-dots .level-dot.locked{background:#e9e4d5;border:1px dashed #c7bdab;color:#817b6c}
#level-dots .level-nav:disabled{color:#9b9689;background:#eee9dc;border-color:#ded7c9;box-shadow:none}
#level-dots .level-dot:focus-visible{outline-offset:-3px}#level-dots .continue-order:not(:disabled){color:#397d68;border-color:#aac5b2;background:#e3f3eb}
@media(hover:hover){.soft-button:hover:not(:disabled),.rotate-button:hover:not(:disabled),.icon-button:hover,.text-button:hover,.account-overlay .account-panel button:hover:not(:disabled){border-color:#397d68;background:#fffef8;color:#397d68}}
@media(max-width:780px),(max-height:500px) and (orientation:landscape){
  .packing-panel{grid-template-rows:22px minmax(0,1fr) 54px}.two-layer .packing-panel{grid-template-rows:22px 32px minmax(0,1fr) 54px}
  .packing-footer{padding:4px 8px 6px}.board-tools{gap:8px;height:100%}.soft-button{height:100%;min-height:44px;padding:6px 8px}.soft-button span{display:inline;font-size:13px}
  .goods-panel{grid-template-columns:minmax(0,1fr);grid-template-rows:17px minmax(0,1fr) 46px;gap:6px}
  .goods-actions{grid-column:1/-1;grid-row:3;grid-template-columns:minmax(0,.9fr) minmax(0,1.5fr);height:44px;gap:8px;margin:0}
  .rotate-button,.ship-button{grid-area:auto;height:44px;min-height:44px;padding:6px 10px;font-size:13px;border-radius:9px;gap:7px}
  .rotate-button>span{font-size:13px}.control-icon{width:19px;height:19px}
  #selection-label,.rotate-button kbd{display:none}
  #belt-toggle{height:22px;min-height:0;padding:1px 6px;gap:6px;font-size:10px;box-shadow:none}#belt-status{font-size:9px}
  .box-option{border-radius:8px}.piece-card,.piece-card.selected{border-radius:8px}
  .icon-button{border-radius:9px}.modal-close{width:34px;height:34px}
}
@media(max-width:780px) and (max-height:680px) and (orientation:portrait){
  .packing-panel{grid-template-rows:22px minmax(0,1fr) 50px}.two-layer .packing-panel{grid-template-rows:22px 32px minmax(0,1fr) 50px}
  .packing-footer{padding:4px 5px 6px}.board-tools{gap:6px}.soft-button{min-height:40px;font-size:12px;gap:5px;padding:4px}.soft-button span{display:inline;font-size:12px}
  .goods-panel{grid-template-columns:minmax(0,1fr);grid-template-rows:16px minmax(0,1fr) 86px;gap:5px}
  .goods-actions{grid-template-columns:1fr;grid-template-rows:40px 40px;height:86px;gap:6px}
  .rotate-button,.ship-button{height:40px;min-height:40px;grid-area:auto;gap:5px;padding:4px;font-size:12px}.rotate-button>span{font-size:12px}.control-icon{width:17px;height:17px}
  .icon-button{border-radius:8px}#belt-toggle{height:20px;padding:0 5px;font-size:9px}
}
@media(max-height:500px) and (orientation:landscape){
  .packing-panel{grid-template-rows:20px minmax(0,1fr) 48px}.two-layer .packing-panel{grid-template-rows:20px 28px minmax(0,1fr) 48px}
  .packing-footer{padding:3px 8px 5px}.soft-button{min-height:40px}.goods-panel{grid-template-rows:15px minmax(0,1fr) 42px}
  .goods-actions{height:40px}.rotate-button,.ship-button{height:40px;min-height:40px}
  #belt-toggle{height:18px;font-size:9px}
}
@media(prefers-reduced-motion:reduce){button{transition:none!important}button:active{transform:none!important}}