/* LIGHT BOUNCE: game page. Tokens match the main site (assets/css/style.css). */
:root{
  --white:#F7F7F5;--black:#0E0E10;--graphite:#3A3A42;--chrome:#C9CCD1;--smoke:#8C9096;--champ:#D8C7A3;
  --serif:"Bodoni Moda","Playfair Display",Georgia,serif;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --metal:linear-gradient(100deg,#8C9096 0%,#F4F5F7 22%,#C9CCD1 42%,#fff 52%,#9A9EA5 78%,#C9CCD1 100%);
  --gutter:16px;
  --top-h:48px;
  --sat:env(safe-area-inset-top,0px);
  --sab:env(safe-area-inset-bottom,0px);
  --sal:env(safe-area-inset-left,0px);
  --sar:env(safe-area-inset-right,0px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--white);color:var(--black);font:400 16px/1.5 var(--sans)}
a{color:inherit}
h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.12;margin:0;letter-spacing:.01em}
p{margin:0}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--graphite);outline-offset:2px}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
[hidden]{display:none!important}

/* ---------- app frame: one screen, no scrolling during play ---------- */
.app{
  position:relative;display:flex;flex-direction:column;
  height:100vh;height:100dvh;min-height:420px;
  max-width:640px;margin:0 auto;
  padding-left:var(--sal);padding-right:var(--sar);
  background:var(--white);
}

/* topbar (Masks pattern, site header colours) */
.topbar{
  flex:none;display:flex;align-items:center;gap:.4rem;
  min-height:calc(var(--top-h) + var(--sat));padding:var(--sat) var(--gutter) 0;
  background:var(--black);color:var(--chrome);
  border-bottom:1px solid transparent;border-image:var(--metal) 1;
  font-size:.82rem;letter-spacing:.04em;
}
.brand{display:flex;align-items:center;margin:0;white-space:nowrap}
.home-link{display:inline-flex;align-items:center;min-height:44px;color:var(--chrome);text-decoration:none;font-weight:500}
.home-link:hover{color:#fff}
.brand-sep{margin:0 .5em;opacity:.5}
.title{font:500 1.05rem/1 var(--serif);color:#fff;letter-spacing:.06em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rooms-btn{
  margin-left:auto;flex:none;display:inline-flex;align-items:center;gap:.45rem;
  min-height:44px;padding:0 .2rem 0 .7rem;background:none;border:0;border-left:1px solid var(--graphite);
  color:var(--chrome);font:500 .82rem/1 var(--sans);letter-spacing:.08em;font-variant-numeric:tabular-nums;cursor:pointer;white-space:nowrap
}
.rooms-btn svg{width:14px;height:14px;fill:currentColor}
.rooms-btn:hover{color:#fff}
.topbar :focus-visible{outline-color:var(--chrome)}

/* room heading */
.room-head{flex:none;padding:.55rem var(--gutter) .45rem}
.room-line{display:flex;align-items:baseline;justify-content:space-between;gap:.8rem}
.room-name:focus{outline:none}
.room-name{font-size:1.3rem;line-height:1.2;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.room-lit{flex:none;font:600 .7rem/1.2 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--graphite);white-space:nowrap}
.room-text{
  margin-top:.15rem;font-size:.85rem;line-height:1.35;color:var(--graphite);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden
}
.room-text.is-lesson{font:italic 500 .98rem/1.3 var(--serif);color:var(--black)}
.room-how{display:flex;align-items:center;justify-content:space-between;gap:.6rem;margin-top:.2rem}
.room-how p{min-width:0;font-size:.76rem;line-height:1.25;color:var(--black);font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.key-btn{
  position:relative;flex:none;display:inline-flex;align-items:center;gap:.35rem;
  min-height:22px;padding:.2rem .5rem .2rem .6rem;border:1px solid var(--black);border-radius:0;
  background:transparent;font:600 .64rem/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;cursor:pointer;white-space:nowrap
}
/* 44px tall hit area, reaching up over the text, not down into the board */
.key-btn::after{content:"";position:absolute;inset:-18px -4px -4px}
.key-btn svg{width:11px;height:11px;fill:none;stroke:currentColor;stroke-width:1.6;transition:transform .2s}
.key-btn[aria-expanded=true]{background:var(--black);color:var(--white)}
.key-btn[aria-expanded=true] svg{transform:rotate(180deg)}

/* key panel: unfolds over the board so the play layout never jumps */
.key-panel{
  position:absolute;inset:0;z-index:4;overflow:auto;overscroll-behavior:contain;
  padding:.6rem var(--gutter) 1.2rem;background:var(--white);border-top:1px solid var(--chrome);
  animation:keyIn .22s ease-out;
}
@keyframes keyIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
.key-title{font-size:1.2rem;margin-bottom:.4rem}
.key-title:focus{outline:none}
.key-steps{margin:0 0 .5rem;padding-left:1.3rem;font-size:.86rem;line-height:1.45}
.key-goal{font-size:.86rem;color:var(--graphite);margin-bottom:.2rem}
.key-sub{font:600 .68rem/1.3 var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--graphite);margin:1rem 0 .5rem}
.key-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:6px}
.key-list li{display:flex;align-items:center;gap:.55rem;padding:.35rem;border:1px solid #E1E2E5;background:#fff;font-size:.76rem;line-height:1.3}
.key-list svg{flex:none;width:40px;height:40px;display:block}
.key-list b{display:block;font-weight:600;font-size:.8rem}
.key-demos{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px}
.key-demo{margin:0;padding:.5rem;background:#fff;border:1px solid #E1E2E5}
.key-demo svg{display:block;width:100%;height:auto;max-width:150px;margin:0 auto}
.key-demo figcaption{margin-top:.4rem;font-size:.76rem;line-height:1.35;color:var(--black)}
.key-close{display:flex;width:100%;max-width:22rem;margin:1.1rem auto 0}

/* ---------- stage and board ---------- */
.stage{
  position:relative;flex:1 1 0;min-height:0;
  padding:.2rem var(--gutter) .4rem;
  display:grid;place-items:center;
  container-type:size;
}
.board{
  --cols:7;--rows:9;
  --cell:min(calc(100cqw / var(--cols)),calc(100cqh / var(--rows)),64px);
  position:relative;
  width:calc(var(--cell) * var(--cols));
  aspect-ratio:var(--cols) / var(--rows);
  background:var(--black);
  box-shadow:0 0 0 1px var(--graphite),0 22px 40px -26px rgba(14,14,16,.75);
  touch-action:manipulation;
  -webkit-user-select:none;user-select:none;-webkit-touch-callout:none;
}
@supports not (width:1cqw){
  .board{--cell:min(calc((100vw - 2 * var(--gutter)) / var(--cols)),calc((100vh - 250px) / var(--rows)),64px)}
}
.floor{position:absolute;inset:0;pointer-events:none}
.floor-dim{
  background:
    radial-gradient(120% 90% at var(--wx,50%) var(--wy,0%),rgba(247,247,245,.05),transparent 60%),
    #0B0B0D;
}
.floor-bright{
  opacity:0;transition:opacity 1.2s ease;
  background:
    linear-gradient(118deg,transparent 36%,rgba(255,255,255,.09) 47%,rgba(255,255,255,.02) 52%,transparent 60%),
    radial-gradient(130% 95% at var(--wx,50%) var(--wy,0%),rgba(216,199,163,.30),rgba(216,199,163,.08) 45%,transparent 78%),
    linear-gradient(160deg,#2A2A31 0%,#1A1A1F 50%,#111114 100%);
}
.board.is-solved .floor-bright{opacity:1}
.board-svg{position:absolute;inset:0;pointer-events:none}
.board-svg svg{display:block;width:100%;height:100%}
.cells{
  position:absolute;inset:0;display:grid;
  grid-template-columns:repeat(var(--cols),1fr);
  grid-template-rows:repeat(var(--rows),1fr);
}
.cell{
  position:relative;display:block;margin:0;padding:0;border:0;border-radius:0;
  background:transparent;cursor:pointer;overflow:hidden;
  -webkit-tap-highlight-color:transparent;touch-action:manipulation;
}
.cell:focus{outline:none}
.cell:focus-visible{outline:2px solid var(--white);outline-offset:-3px}
.cell.can::before{
  content:"";position:absolute;inset:18%;
  border:1px dashed rgba(216,199,163,.6);
}
.cell.is-sel::after{
  content:"";position:absolute;inset:3px;
  border:2px solid var(--champ);
}
.cell.pressing::after{
  content:"";position:absolute;inset:3px;border:2px solid var(--champ);
  transform:scale(.6);opacity:.4;animation:press .55s linear forwards;
}
@keyframes press{to{transform:scale(1);opacity:1}}
.cell.flash{animation:flash .5s ease}
@keyframes flash{0%,100%{background:transparent}30%{background:rgba(224,138,106,.28)}}

/* chrome glint on solve: a quick --metal sweep along the piece */
.glint{
  position:absolute;inset:0;pointer-events:none;
  background:var(--metal);background-size:320% 100%;background-position:120% 0;
  opacity:0;mix-blend-mode:screen;
  animation:glint .9s ease-out forwards;
}
.glint.mirror.o-s{clip-path:polygon(11.4% 79.4%,79.4% 11.4%,88.6% 20.6%,20.6% 88.6%)}
.glint.mirror.o-b{clip-path:polygon(20.6% 11.4%,88.6% 79.4%,79.4% 88.6%,11.4% 20.6%)}
.glint.chrome.o-s{clip-path:polygon(13.5% 81.5%,81.5% 13.5%,86.5% 18.5%,18.5% 86.5%)}
.glint.chrome.o-b{clip-path:polygon(18.5% 13.5%,86.5% 81.5%,81.5% 86.5%,13.5% 18.5%)}
@keyframes glint{0%{opacity:0;background-position:120% 0}25%{opacity:1}100%{opacity:0;background-position:-120% 0}}

.toast{
  position:absolute;left:50%;top:.6rem;transform:translateX(-50%);z-index:5;
  width:max-content;max-width:calc(100% - 2 * var(--gutter));
  padding:.6rem .9rem;background:var(--black);color:var(--white);
  border:1px solid var(--champ);font-size:.85rem;line-height:1.4;text-align:center;
  box-shadow:0 12px 30px -12px rgba(0,0,0,.7);
}
.noscript{padding:2rem;text-align:center}
.stage-msg{max-width:22em;text-align:center;font:500 1.15rem/1.4 var(--serif)}

/* ---------- tray (sticky bottom, safe area) ---------- */
.tray{
  position:sticky;bottom:0;z-index:2;flex:none;
  padding:.5rem var(--gutter) calc(.55rem + var(--sab));
  background:var(--white);border-top:1px solid var(--chrome);
}
.tray-pieces,.tray-result{display:flex;gap:8px;min-height:52px}
.piece{
  flex:1 1 0;min-width:0;display:flex;align-items:center;justify-content:center;gap:.4rem;
  min-height:52px;padding:.25rem .3rem;
  background:#fff;border:1px solid var(--chrome);border-radius:0;cursor:pointer;
  position:relative;text-align:left;line-height:1.15;
  -webkit-tap-highlight-color:transparent;touch-action:manipulation;
}
.piece svg{flex:none;width:26px;height:26px}
.piece .p-txt{display:flex;flex-direction:column;min-width:0}
.piece .p-name{font-weight:600;font-size:.76rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.piece .p-left{font-size:.72rem;color:var(--graphite);white-space:nowrap}
.piece[aria-pressed="true"]{background:var(--black);border-color:var(--black);color:var(--white)}
.piece[aria-pressed="true"] .p-left{color:var(--chrome)}
.piece[aria-pressed="true"]::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--metal)}
.piece[aria-disabled="true"]{color:#6b6e74;border-style:dashed;cursor:default}
.piece[aria-disabled="true"] svg{opacity:.45}
.tray-pieces[data-n="4"] .piece{flex-direction:column;gap:1px;padding:.15rem .2rem;text-align:center}
.tray-pieces[data-n="4"] .piece svg{width:20px;height:20px}
.tray-pieces[data-n="4"] .p-txt{align-items:center;max-width:100%}
.tray-pieces[data-n="4"] .p-name,.tray-pieces[data-n="4"] .p-left{font-size:.72rem;line-height:1.15}
.tray-empty{flex:1;align-self:center;text-align:center;font-size:.85rem;color:var(--graphite)}
.tray-result{align-items:center;justify-content:space-between;border:1px solid var(--chrome);background:#fff;padding:0 .8rem}
.result-stars{display:flex;align-items:center;gap:.5rem}
.result-label{font:600 .7rem/1 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--graphite)}
.stars{font-size:1.15rem;letter-spacing:.12em;line-height:1;color:var(--black)}
.stars .off{color:var(--graphite)}
.result-text{font-size:.8rem;color:var(--graphite);text-align:right}
.tray-actions{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:8px;margin-top:8px}
.act{
  display:inline-flex;align-items:center;justify-content:center;gap:.4rem;
  min-height:44px;padding:0 .4rem;background:transparent;border:1px solid var(--black);border-radius:0;
  font:600 .74rem/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;cursor:pointer;
  -webkit-tap-highlight-color:transparent;touch-action:manipulation;
}
.act svg{width:14px;height:14px;flex:none;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.act:disabled{color:#6b6e74;border-color:#C3C6CB;cursor:default}
.act-next{background:var(--metal);background-size:200% 100%;border-color:var(--chrome);color:var(--black);white-space:nowrap;letter-spacing:.08em}
.act-next:hover{background:var(--black);color:var(--white)}
@media (hover:hover){
  .act:not(:disabled):not(.act-next):hover{background:var(--black);color:var(--white)}
  .piece:not([aria-disabled="true"]):not([aria-pressed="true"]):hover{border-color:var(--black)}
}

/* ---------- overlay views ---------- */
.view{
  position:absolute;left:0;right:0;bottom:0;top:calc(var(--top-h) + var(--sat));z-index:20;
  overflow-y:auto;-webkit-overflow-scrolling:touch;overscroll-behavior:contain;
  background:var(--white);
}
.view-in{max-width:520px;margin:0 auto;padding:1.6rem var(--gutter) calc(2rem + var(--sab));text-align:center}
.view h2{font-size:clamp(1.7rem,7vw,2.3rem);margin:0 auto .2rem;outline:none}
.view p{margin:0 auto .8rem;max-width:32em}
.eyebrow{font:600 .72rem/1.4 var(--sans);letter-spacing:.3em;text-transform:uppercase;color:var(--graphite);margin:0 0 .7rem!important}
.rule{display:block;width:96px;height:2px;background:var(--metal);margin:1rem auto 1.2rem}
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;
  min-height:52px;padding:.8rem 1.6rem;border:1px solid var(--black);border-radius:0;
  background:transparent;color:var(--black);
  font:600 .82rem/1.25 var(--sans);letter-spacing:.16em;text-transform:uppercase;text-decoration:none;text-align:center;
  cursor:pointer;max-width:100%;
}
.btn:hover{background:var(--black);color:var(--white)}
.btn-dark{background:var(--black);color:var(--white)}
.btn-dark:hover{background:var(--graphite)}
.btn-metal{background:var(--metal);background-size:200% 100%;border-color:var(--chrome);color:var(--black)}
.btn-metal:hover{background:#fff;color:var(--black)}
.btn-outline-light{border-color:var(--chrome);color:var(--white)}
.btn-outline-light:hover{background:var(--white);color:var(--black)}
.link-btn{background:none;border:0;padding:.7rem .4rem;min-height:44px;font-size:.85rem;color:var(--graphite);text-decoration:underline;text-underline-offset:3px;cursor:pointer}
.link-btn:hover{color:var(--black)}

/* help */
.steps{text-align:left;max-width:22em;margin:.4rem auto 1rem;padding-left:1.4rem;font-size:.95rem}
.steps li{margin:.2rem 0}
.legend{list-style:none;margin:1rem auto 1.2rem;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:8px;text-align:left;max-width:30em}
.legend li{display:flex;align-items:center;gap:.6rem;padding:.4rem;border:1px solid #E1E2E5;background:#fff;font-size:.8rem;line-height:1.3}
.legend svg{flex:none;width:36px;height:36px;display:block}
.legend b{display:block;font-weight:600}
.keys{font-size:.8rem;color:var(--graphite)}
.view-help .btn{min-width:200px;margin-top:.2rem}
.legend-title{font-size:1.15rem;margin:1.8rem 0 0}

/* rooms */
.rooms-total{font-size:.9rem;color:var(--graphite)}
.room-list{list-style:none;margin:1rem 0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.room-card{
  width:100%;min-height:96px;display:flex;flex-direction:column;align-items:flex-start;justify-content:space-between;gap:.3rem;
  padding:.6rem .6rem .55rem;background:#fff;border:1px solid var(--chrome);border-radius:0;text-align:left;cursor:pointer;position:relative
}
.room-card:hover{border-color:var(--black)}
.room-card .rc-num{font:600 .68rem/1 var(--sans);letter-spacing:.16em;color:var(--graphite)}
.room-card .rc-name{font:500 .98rem/1.15 var(--serif)}
.room-card .stars{font-size:.85rem}
.room-card .rc-lock{display:inline-flex;align-items:center;gap:.3rem;font-size:.7rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--graphite)}
.room-card .rc-lock svg{width:12px;height:12px;fill:none;stroke:currentColor;stroke-width:1.6}
.room-card.is-current{border-color:var(--black);box-shadow:inset 0 3px 0 var(--black)}
.room-card.is-locked{background:#F0F0EE;border-style:dashed}
.rooms-plan{margin:1.2rem 0 .4rem;padding:1.1rem 1rem;background:var(--black);color:var(--white);position:relative}
.rooms-plan::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--metal)}
.rooms-plan h3{font-size:1.25rem;margin-bottom:.4rem;color:#fff}
.rooms-plan p{font-size:.88rem;color:var(--chrome)}
.rooms-plan .btn{margin-top:.2rem}
.badge-line{font-size:.85rem;color:var(--graphite)}
.view-rooms .btn-dark{min-width:220px}

/* gate: dark interstitial, Masks lead form */
.view-gate{background:linear-gradient(160deg,var(--graphite),var(--black) 58%);color:var(--white)}
.view-gate h2{color:#fff}
.view-gate .eyebrow{color:var(--chrome)}
.gate-beam{display:block;width:min(320px,100%);height:auto;margin:.4rem auto 1.2rem}
.gate-lede{font:500 1.2rem/1.4 var(--serif);color:#fff}
.gate-sub{font-size:.9rem;color:var(--chrome)}
.lead-form{display:flex;flex-direction:column;gap:10px;margin:1.2rem auto .8rem;max-width:26rem;text-align:left}
.lead-label{font-size:.85rem;font-weight:600;color:var(--white)}
.lead-row{display:flex;flex-direction:column;gap:10px}
.lead-input{
  width:100%;min-height:52px;padding:.8rem 1rem;border:1px solid var(--chrome);border-radius:0;
  background:rgba(255,255,255,.06);color:#fff;font:400 1rem/1.3 var(--sans)
}
.lead-input::placeholder{color:#A9ACB1}
.lead-input:focus{outline:2px solid var(--champ);outline-offset:1px}
.lead-submit{width:100%}
.lead-submit[disabled]{opacity:.7;cursor:wait}
.lead-opt{display:flex;gap:.6rem;align-items:flex-start;font-size:.82rem;line-height:1.45;color:var(--chrome);cursor:pointer;padding:.2rem 0}
.lead-opt input{margin-top:.15rem;width:18px;height:18px;flex:none;accent-color:var(--champ)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.lead-msg{font-size:.88rem;font-weight:600;color:#F0B49B}
.lead-msg:empty{display:none}
.lead-note{font-size:.8rem;color:#B5B8BD}
.lead-note a{color:var(--white)}
.lead-unlocked{display:flex;flex-direction:column;align-items:center;gap:12px;margin:1rem 0}
.lead-unlocked p{margin:0;color:var(--chrome)}
.lead-unlocked .btn{width:100%;max-width:26rem}
.lead-reset button{background:none;border:0;padding:.6rem;min-height:44px;font-size:.82rem;color:var(--chrome);text-decoration:underline;text-underline-offset:3px;cursor:pointer}
.lead-reset button:hover{color:#fff}
.view-gate .link-btn{color:var(--chrome)}
.view-gate .link-btn:hover{color:#fff}
.view-gate :focus-visible{outline-color:var(--chrome)}

/* complete */
.done-stars{font:500 1.3rem/1.4 var(--serif)}
.done-stars .stars{display:block;font-size:1.6rem;margin-bottom:.3rem}
.done-badge{display:inline-block;padding:.6rem .9rem;border:1px solid var(--chrome);background:#fff;font-size:.88rem}
.done-badge.found{border-color:var(--champ);box-shadow:inset 0 3px 0 var(--champ)}
.done-line{font:italic 500 1.05rem/1.4 var(--serif);color:var(--graphite);margin-top:.6rem!important}
.done-ctas{display:flex;flex-direction:column;gap:10px;align-items:stretch;max-width:24rem;margin:1rem auto}

/* footer (below the game screen) */
.foot{background:var(--black);color:var(--chrome);text-align:center;padding:1.6rem var(--gutter) calc(1.6rem + var(--sab));font-size:.85rem;border-top:1px solid transparent;border-image:var(--metal) 1}
.foot p{margin:0}
.foot a{display:inline-flex;align-items:center;min-height:44px;text-decoration:none;color:var(--chrome)}
.foot a:hover{color:#fff;text-decoration:underline}
.foot :focus-visible{outline-color:var(--chrome)}

/* ---------- small phones ---------- */
@media (max-width:370px){
  :root{--gutter:14px}
  .piece{gap:.3rem;padding:.25rem}
  .piece svg{width:22px;height:22px}
  .piece .p-name{font-size:.72rem}
  .act{letter-spacing:.08em;font-size:.72rem;gap:.3rem}
  .title{font-size:.98rem}
}
@media (max-height:700px) and (orientation:portrait){
  :root{--top-h:44px}
  .room-head{padding:.35rem var(--gutter) .3rem}
  .room-name{line-height:1.12}
  .room-text{font-size:.8rem;line-height:1.3;margin-top:.1rem}
  .stage{padding-top:.1rem;padding-bottom:.3rem}
  .tray{padding-top:.4rem;padding-bottom:calc(.4rem + var(--sab))}
  .tray-pieces,.tray-result,.piece{min-height:48px}
  .tray-actions{margin-top:6px}
}
@media (max-height:600px) and (orientation:portrait){
  .room-text{-webkit-line-clamp:1}
  .tray-pieces,.tray-result,.piece{min-height:46px}
}

/* ---------- landscape phones: tray beside the board ---------- */
@media (orientation:landscape) and (max-height:540px){
  :root{--top-h:44px}
  .app{
    max-width:none;display:grid;min-height:300px;
    grid-template-columns:minmax(0,1fr) minmax(250px,42%);
    grid-template-rows:auto auto minmax(0,1fr);
    grid-template-areas:"top top" "stage head" "stage tray";
  }
  .topbar{grid-area:top}
  .room-head{grid-area:head;padding:.5rem var(--gutter) .2rem 0}
  .stage{grid-area:stage;padding:.4rem var(--gutter) calc(.4rem + var(--sab))}
  .tray{grid-area:tray;position:static;align-self:end;border-top:0;padding:.4rem var(--gutter) calc(.6rem + var(--sab)) 0}
  .tray-pieces{flex-wrap:wrap}
  .piece{flex:1 1 calc(50% - 4px)}
  .room-text{-webkit-line-clamp:3}
  .room-line{flex-wrap:wrap;row-gap:.1rem}
  .room-name{white-space:normal}
}

/* ---------- desktop ---------- */
@media (min-width:700px){
  :root{--gutter:24px}
  .room-name{font-size:1.6rem}
  .room-text{font-size:.95rem}
  .room-list{grid-template-columns:repeat(4,1fr)}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .glint{display:none}
}