:root{font-family:Georgia,'Times New Roman',serif;color:#fff4d0;background:#21070b;--gold:#e7a83a;--deep:#4e1115;--cell:#fffdf7;--cell-border:#7c2723;--size:min(4.05vw,46px);font-synthesis:none}
*{box-sizing:border-box}button,select{font:inherit}button{cursor:pointer}button:disabled{opacity:.45;cursor:not-allowed}.svg-defs{position:absolute;width:0;height:0;overflow:hidden}
body{margin:0;min-width:880px;min-height:100vh;background:radial-gradient(ellipse at 30% 0%,#9c2825 0%,#4a1015 58%,#200609 100%)}
.game-app{width:min(100%,1500px);min-height:100vh;margin:auto;position:relative;overflow:hidden;border-left:3px solid #8b4a20;border-right:3px solid #8b4a20;background:radial-gradient(ellipse at 50% 5%,#86292375,transparent 68%),repeating-linear-gradient(140deg,transparent 0 16px,#2d07080a 17px 33px)}
.game-app:before,.game-app:after{content:'❦';pointer-events:none;position:absolute;top:-118px;font-size:400px;line-height:1;color:#e99a24;opacity:.17;transform:rotate(-23deg);z-index:0}.game-app:before{left:-116px}.game-app:after{right:-117px;transform:scaleX(-1) rotate(-23deg)}
.top-bar{position:relative;z-index:2;min-height:86px;display:flex;align-items:center;justify-content:space-between;padding:14px 30px;background:linear-gradient(#350a11,#53121a 50%,#26070c);border-bottom:5px double #b97928;box-shadow:0 7px 25px #18030390}
.brand{display:flex;align-items:center;gap:8px;font-size:13px;letter-spacing:1px;line-height:1.05;color:#fce3a0}.brand strong{font-size:18px}.brand-mark{display:grid;place-items:center;width:47px;height:47px;border:3px solid #8e480e;background:linear-gradient(145deg,#fff6bf,#e9a940,#a15c0d);color:#662020;text-shadow:1px 1px #fff;font-size:32px;font-weight:bold;border-radius:12px;box-shadow:0 0 0 2px #ffde77}.brand small{display:none}
.headline{text-align:center;color:#ffde8b;font-weight:bold;font-size:32px;letter-spacing:4px;text-shadow:0 3px 2px #3b0d0e,0 0 9px #e6a123}.headline small{display:block;color:#e1b785;font:12px Verdana,sans-serif;letter-spacing:2px;margin-top:2px}.ornament{font-size:22px}
.header-actions{display:flex;gap:10px}.gold-button{border:2px solid #8d4a13;color:#4f230e;font-weight:bold;background:linear-gradient(#fff6c0,#f9cd69 43%,#bb761c 55%,#ffe49a);box-shadow:inset 0 1px #fffdf0,0 3px 0 #5f210f,0 4px 9px #1607088f;border-radius:7px;padding:9px 15px;text-shadow:0 1px #fff4c2;font-size:13px;white-space:nowrap}.gold-button:hover{filter:brightness(1.1)}.gold-button:active{transform:translateY(2px);box-shadow:inset 0 2px 4px #7f431b}.gold-button.primary{background:linear-gradient(#f9dd7d,#eca532 43%,#8f4c13 54%,#f7ce65)}.gold-button.small{font-size:12px;padding:8px 12px}
.progress-track{position:relative;z-index:2;margin:8px auto 2px;width:min(64%,810px);height:32px;display:flex;align-items:center;justify-content:center;gap:3px;padding:3px 13px;border:4px solid #b87425;border-radius:12px;box-shadow:inset 0 0 0 2px #fff0a2,0 2px 5px #240709;background:linear-gradient(#551319,#361017)}
.progress-track i{flex:1;max-width:22px;aspect-ratio:1;border-radius:50%;background:linear-gradient(100deg,#fff,#f1f1f8 56%,#a9aab3);box-shadow:0 0 2px #191919}.progress-track i.used{background:linear-gradient(110deg,#5dec48,#079521)}.progress-track i.late{background:linear-gradient(110deg,#ffd940,#d88d11)}
.main-stage{position:relative;display:grid;grid-template-columns:minmax(125px,1fr) minmax(580px,690px) minmax(125px,1fr);gap:7px;align-items:end;padding:8px 22px 0;z-index:1}
.player-side{height:100%;min-height:620px;display:flex;flex-direction:column;justify-content:end;align-items:center;position:relative}.flourish{position:absolute;top:5%;left:0;color:#b16c20;font-size:clamp(86px,10vw,150px);line-height:1;opacity:.6;filter:drop-shadow(2px 2px 2px #160604);transform:rotate(-30deg)}.flourish.mirrored{left:auto;right:0;transform:scaleX(-1) rotate(-30deg)}
.mascot{width:min(100%,175px);height:auto;filter:drop-shadow(0 5px 6px #1a080e);margin-bottom:-16px;z-index:1}.right-side .mascot{transform:scaleX(-1)}
.player-card{width:100%;max-width:210px;background:linear-gradient(#1f1115,#361116);border:4px ridge #f1b943;border-radius:3px;box-shadow:inset 0 2px #fff3a2,0 3px 10px #1e050b;text-align:center;position:relative;z-index:2}.player-card.active{border-color:#ffde62;box-shadow:0 0 10px #ffcd4d95}.player-name{padding:6px 8px;font:14px Verdana,sans-serif;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;background:linear-gradient(#1f1419,#060509)}.right-side .player-name{background:linear-gradient(#87cff4,#3d7dd2);color:#09234c;text-shadow:0 1px #d4edfc}.score{border-top:3px solid #d7a53d;display:flex;align-items:center;justify-content:space-between;padding:4px 10px;gap:4px}.score strong{font:28px Georgia,serif}.score small{font:11px Verdana,sans-serif;color:#f0ca7d}
.center-area{width:100%;align-self:start;text-align:center}.board-crest{font-size:12px;font-weight:bold;letter-spacing:4px;color:#ffc75f;text-shadow:0 2px #240507;margin-bottom:2px}.board-crest span{color:#fbedb1;font-size:16px}
.board-rim{padding:8px;border:4px solid #f7d86e;outline:3px solid #8b4716;background:linear-gradient(135deg,#fff2aa,#b65a1b 13%,#f4bb46 50%,#743108 87%,#fff3af);box-shadow:0 5px 19px #190305, inset 0 0 0 2px #8c4815}.board{display:grid;grid-template-columns:repeat(15,1fr);width:100%;aspect-ratio:1;background:#f6f2e8;border:3px solid #501311;user-select:none;touch-action:manipulation}
.cell{min-width:0;min-height:0;display:grid;place-items:center;border-right:1px solid #8e4740;border-bottom:1px solid #8e4740;background:#fffefa;color:#612c23;font-size:clamp(12px,1.9vw,25px);font-weight:bold;position:relative;padding:0;outline:0}.cell:nth-child(15n){border-right:0}.cell:nth-last-child(-n+15){border-bottom:0}.cell.dd{background:#d2eab5}.cell.td{background:#48aa38}.cell.de{background:#c8f1f9}.cell.te{background:#57afe0}.cell.occupied{background:#f4d4ac;text-shadow:1px 1px #fff8d9}.cell.occupied.old{background:#ecd1aa}.cell.pending{background:#ffb95d;color:#641f08;box-shadow:inset 0 0 0 3px #ef8520}.cell.highlight{box-shadow:inset 0 0 0 3px #18c3af}.cell:focus-visible{outline:3px solid #d55517;z-index:2}.cell:not(.occupied):hover{filter:brightness(.91)}.cell.te.occupied,.cell.td.occupied{box-shadow:inset 0 0 0 2px #4884bf}
.under-board{display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:50px;margin:0 4px}.game-message{flex:1;text-align:left;font:13px Verdana,sans-serif;color:#f3deb1;text-shadow:1px 2px #290510}.game-message.error{color:#ffc5b3}.game-message.success{color:#8bffa0}.timer-wrap{display:flex;flex-direction:column;align-items:center;min-width:65px;background:#260811;border:2px solid #c38635;border-radius:5px;padding:2px 6px}.timer-wrap span{font:9px Verdana,sans-serif;letter-spacing:2px;color:#f5be64}.timer-wrap strong{font:20px Georgia,serif}.timer-wrap.warning strong{color:#ff8066}
.rack-frame{display:flex;justify-content:center;align-items:center;gap:13px;padding:7px 0 11px}.rack{display:flex;min-width:325px;height:76px;align-items:center;justify-content:center;gap:5px;background:linear-gradient(#ffe4a2,#b5793d);border:3px ridge #f9d676;box-shadow:0 5px 6px #210509;padding:6px 8px;border-radius:4px}.tile{border:2px solid #bf8154;background:linear-gradient(145deg,#fff3d4,#e5bb8b);box-shadow:inset 0 1px #fff,0 3px #7d3d26;color:#712c20;font-weight:bold;font-size:35px;width:55px;height:57px;text-shadow:1px 1px #fff8df;display:grid;place-items:center;border-radius:2px;transition:transform .12s}.tile.selected{transform:translateY(-11px);background:linear-gradient(#fffebd,#ffcd55);box-shadow:0 0 0 3px #fff3bd,0 5px 9px #2c100c}.tile.exchange-selected{background:linear-gradient(#d4ecf5,#63b4e4)}.tile.empty{opacity:.38;pointer-events:none}.round-button{width:54px;height:54px;border-radius:50%;border:5px ridge #eec35c;background:linear-gradient(140deg,#fff2ae,#8e8f92 38%,#606069);color:#fbeaca;font-size:35px;text-shadow:1px 2px #5b3317;box-shadow:0 4px 7px #220608}.round-button.play{background:linear-gradient(140deg,#fff3ab,#f4c447 45%,#ad6d13);color:#63410b}.round-button:hover{filter:brightness(1.14)}
.control-bar{position:relative;z-index:2;display:flex;justify-content:space-between;align-items:center;gap:10px;padding:12px 28px;background:linear-gradient(#44131b,#23080e);border-top:5px ridge #bb742b;margin-top:8px;min-height:82px}.game-controls{display:flex;gap:7px;flex-wrap:wrap;justify-content:center}.bag-count,.game-mode{font:13px Verdana,sans-serif;color:#eed5a1;min-width:145px}.bag-count strong{color:#fff;font-size:17px}.game-mode{text-align:right}.fine-print{text-align:center;font:10px Verdana,sans-serif;color:#b88668;padding:8px}
dialog{border:5px ridge #d99b37;border-radius:12px;background:linear-gradient(145deg,#fff3ce,#e2b470);color:#49200e;box-shadow:0 15px 90px #080204;max-width:min(95vw,560px);max-height:90vh}dialog::backdrop{background:#120309c9}.dialog-body{display:flex;flex-direction:column;gap:13px;padding:10px 17px}.dialog-body h2{text-align:center;margin:4px 0 8px;color:#7d270e;text-transform:uppercase;letter-spacing:2px}.dialog-body label{display:flex;justify-content:space-between;align-items:center;gap:20px;font-weight:bold}.dialog-body select{background:#fff9e7;border:1px solid #b88638;border-radius:6px;padding:8px;max-width:225px}.dialog-note{font:12px/1.5 Verdana,sans-serif;opacity:.8}.check-line{justify-content:flex-start!important}menu{padding:0;display:flex;justify-content:end;gap:12px;margin:5px 0}.rules-body{max-width:530px}.rules-body p,.rules-body li{font:14px/1.6 Verdana,sans-serif}.rules-body ul{margin:0;padding-left:25px}.example{display:flex;align-items:center;gap:5px;font:17px Verdana,sans-serif}.example span{display:grid;place-items:center;font:bold 25px Georgia,serif;border:1px solid #9c5c31;background:#fff3d8;width:35px;height:40px}.example b{margin:0 8px}
@media(max-width:1130px){:root{--size:38px}.main-stage{grid-template-columns:135px minmax(540px,1fr) 135px;padding:6px 12px 0}.top-bar{padding:12px 15px}.headline{font-size:26px}.gold-button{font-size:12px;padding:8px}.player-name{font-size:11px}.score strong{font-size:22px}.control-bar{padding:10px}.bag-count,.game-mode{min-width:90px;font-size:11px}.rack{min-width:295px}.tile{width:49px}}
@media(max-height:890px) and (min-width:1131px){.top-bar{min-height:65px}.player-side{min-height:0}.mascot{width:130px}.board-rim{max-width:620px;margin:auto}.main-stage{grid-template-columns:minmax(120px,1fr) minmax(550px,650px) minmax(120px,1fr)}.rack{height:67px}.tile{height:53px}}

/* v0.1.1: Fit the complete game into the visible desktop viewport.
   A definite square board prevents implicit grid rows from resizing after placing digits. */
:root{--board-side:clamp(280px,min(690px,calc(100dvh - 330px),calc(100vw - 350px)),690px)}
.game-app{display:flex;flex-direction:column;min-height:100dvh}
.top-bar{min-height:66px;padding:9px 24px;flex-shrink:0}
.headline{font-size:28px}
.progress-track{height:27px;margin:4px auto 0;padding:2px 10px;border-width:3px;flex-shrink:0}
.main-stage{flex:1 0 auto;grid-template-columns:minmax(110px,1fr) minmax(0,calc(var(--board-side) + 16px)) minmax(110px,1fr);gap:7px;align-items:end;justify-content:center;padding:4px 14px 0}
.player-side{height:100%;min-height:0}
.mascot{width:min(100%,145px);margin-bottom:-14px}
.center-area{width:100%;min-width:0}
.board-crest{font-size:11px;margin-bottom:0}
.board-rim{padding:5px;border-width:3px;outline-width:2px;max-width:none;margin:0}
.board{width:100%;height:var(--board-side);aspect-ratio:1/1;grid-template-columns:repeat(15,minmax(0,1fr));grid-template-rows:repeat(15,minmax(0,1fr));overflow:hidden}
.cell{min-width:0;min-height:0;overflow:hidden;line-height:1;font-size:clamp(12px,calc(var(--board-side)/26),25px)}
.under-board{min-height:34px}
.rack-frame{gap:10px;padding:0 0 4px}
.rack{min-width:300px;height:62px;padding:4px 6px}
.tile{width:47px;height:48px;font-size:29px}
.round-button{width:46px;height:46px;border-width:4px;font-size:29px}
.control-bar{margin-top:0;min-height:65px;padding:8px 18px;border-top-width:3px;flex-shrink:0}
.fine-print{padding:3px 6px;flex-shrink:0}
@media(max-width:1130px){
  .main-stage{grid-template-columns:minmax(90px,1fr) minmax(0,calc(var(--board-side) + 16px)) minmax(90px,1fr);gap:3px;padding:4px 8px 0}
  .rack{min-width:300px;height:62px}.tile{width:47px;height:48px}
  .control-bar{padding:6px 9px}.bag-count,.game-mode{min-width:90px}
}
@media(max-height:700px){
  .top-bar{min-height:55px;padding-top:5px;padding-bottom:5px}
  .progress-track{height:24px}
  .board-crest{font-size:10px}
  .under-board{min-height:29px}
  .rack-frame{padding-bottom:1px}
  .rack{height:53px}.tile{height:42px;width:43px;font-size:26px}
  .round-button{width:41px;height:41px;font-size:25px}
  .control-bar{min-height:55px;padding-top:4px;padding-bottom:4px}
  .fine-print{font-size:9px;padding:2px}
}


/* v0.1.3: balanced desktop side panels, active-player indication and stable no-scroll board. */
:root{--board-side:clamp(280px,min(640px,calc(100dvh - 348px),calc(100vw - 475px)),640px)}
html,body{height:100%;overflow-x:hidden}
.game-app{height:100dvh;min-height:600px;overflow:hidden}
.main-stage{flex:1 1 auto;min-height:0;grid-template-columns:minmax(170px,1fr) minmax(0,calc(var(--board-side) + 16px)) minmax(170px,1fr);align-items:stretch;padding:4px 12px 0}
.center-area{align-self:center}
.player-side{min-height:0;justify-content:flex-end;overflow:hidden}
.board{width:100%;height:var(--board-side);grid-template-rows:repeat(15,minmax(0,1fr));grid-template-columns:repeat(15,minmax(0,1fr))}
.board .cell{min-width:0;min-height:0}
.under-board{justify-content:flex-end;min-height:32px}
.player-card{flex-shrink:0}
.player-card .player-name,.right-side .player-card .player-name{background:linear-gradient(#28151a,#10070c);color:#f9d99a;text-shadow:none}
.player-card.active{border-color:#66c7ff;box-shadow:0 0 0 2px #317cc1,0 0 14px #66bfff75}
.player-card.active .player-name,.right-side .player-card.active .player-name{background:linear-gradient(#a3e3ff,#4596de);color:#07264a;text-shadow:0 1px #e7f6ff}
.player-card.active .score{background:#20477655}
.side-panel{display:flex;flex-direction:column;gap:8px;width:min(100%,340px);height:clamp(135px,calc(var(--board-side) - 155px),440px);min-height:0;overflow:hidden;padding:11px 13px 10px;margin-bottom:8px;position:relative;z-index:1;border:3px ridge #e0a644;border-radius:8px;background:linear-gradient(160deg,#531e21f5,#240c12f5);box-shadow:inset 0 1px #fedf8a55,0 5px 18px #22060d8f}
.side-panel h2{font:700 clamp(13px,1.15vw,17px) Georgia,serif;letter-spacing:.5px;margin:0;padding:0 0 8px;border-bottom:1px solid #d79f4c;color:#ffdb91;text-align:center}
.side-panel h3{font:700 12px Georgia,serif;color:#f6ca79;letter-spacing:.5px;margin:1px 0 0}
.status-turn{display:flex;gap:5px;flex-wrap:wrap;align-items:center;justify-content:space-between;padding:8px 9px;border:1px solid #a57034;background:#2b1822;border-radius:4px}
.status-turn span{font:11px Verdana,sans-serif;color:#efd19b}
.status-turn strong{color:#83d3ff;font:700 clamp(13px,1.2vw,17px) Georgia,serif}
.status-details{display:grid;gap:6px}
.status-details>div{display:flex;align-items:center;justify-content:space-between;gap:8px;font:11px Verdana,sans-serif;border-bottom:1px solid #cca26a30;padding-bottom:4px}
.status-details span{color:#e0bb7c}
.status-details strong{color:#fff0bf;max-width:58%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.status-panel .game-message{min-height:0;max-height:62px;overflow:auto;flex:none;text-align:left;border-radius:4px;background:#1c0b12aa;border-left:3px solid #c59e54;padding:6px 7px;font:11px/1.35 Verdana,sans-serif}
.move-history{flex:1;overflow-y:auto;min-height:0;margin:0;padding-left:24px;font:11px/1.55 Verdana,sans-serif;color:#f6dfaf}
.move-history li{margin:0 0 4px;overflow-wrap:anywhere}
.move-history .move-points{color:#9efaac}
.chat-panel{gap:7px}
.chat-messages{flex:1;overflow:auto;min-height:0;display:flex;flex-direction:column;gap:7px;padding-right:4px;font:12px/1.4 Verdana,sans-serif;scrollbar-width:thin}
.chat-message{padding:6px 8px;border-radius:6px;background:#2e1720;overflow-wrap:anywhere}
.chat-message.system{border-left:2px solid #d4a84e;color:#f0d7a1}
.chat-message.player{border-left:2px solid #53b5ed;color:#f9f1dc;background:#29314680}
.chat-message strong{display:block;color:#91dbff;font-size:11px;margin-bottom:2px}
.chat-entry{display:flex;gap:4px;align-items:stretch}
.chat-entry input{min-width:0;flex:1;width:0;font:12px Verdana,sans-serif;border:1px solid #e3ae55;border-radius:5px;padding:6px 7px;background:#fff4d4;color:#442018}
.chat-entry input:disabled{opacity:.6;cursor:not-allowed}
.chat-entry .gold-button{font-size:11px;padding:6px}
.chat-note{margin:0;font:10px Verdana,sans-serif;color:#d5b583}
.confirm-actions{display:flex;gap:10px;justify-content:flex-end}
.confirmation-dialog p{font:14px/1.6 Verdana,sans-serif}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
[hidden],#hintButton[hidden]{display:none!important}
.control-bar{min-height:56px;padding:6px 18px}
.game-app .mascot{width:min(100%,120px);margin-bottom:-12px}
@media(max-width:1130px){
  :root{--board-side:clamp(275px,min(580px,calc(100dvh - 335px),calc(100vw - 345px)),580px)}
  .main-stage{grid-template-columns:minmax(110px,1fr) minmax(0,calc(var(--board-side) + 16px)) minmax(110px,1fr);gap:4px;padding:4px 6px 0}
  .side-panel{padding:8px;height:clamp(128px,calc(var(--board-side) - 135px),360px);gap:5px}
  .status-details>div{font-size:10px}
  .chat-entry{flex-wrap:wrap}.chat-entry input{min-width:75px}
}
@media(max-height:740px){
  :root{--board-side:clamp(260px,min(600px,calc(100dvh - 300px),calc(100vw - 450px)),600px)}
  .game-app .mascot{width:min(100%,90px)}
  .side-panel{height:clamp(128px,calc(var(--board-side) - 100px),320px)}
  .side-panel h2{padding-bottom:4px}
  .side-panel .status-details{gap:3px}
  .side-panel .game-message{max-height:42px}
  .top-bar{min-height:54px}
  .progress-track{height:22px}
  .control-bar{min-height:50px}
}

/* v0.1.4: unobtrusive score forecast between board and rack. */
.under-board{min-height:38px;gap:6px}
.move-preview{flex:1 1 auto;min-width:0;display:flex;align-items:center;gap:8px;white-space:nowrap;overflow:hidden;text-align:left;font:12px Verdana,sans-serif;color:#f4d59d}
.move-preview-label{flex:none;color:#f5d6a3}
.move-preview strong{flex:none;font:700 19px Georgia,serif;color:#f9dfb0}
.move-preview[data-state="valid"] strong{color:#91ff9b;text-shadow:0 0 5px #2b8f4a}
.move-preview[data-state="invalid"] strong{color:#ffb395}
.move-preview-details{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;color:#e5c5a1;font:11px Verdana,sans-serif}
.move-preview[data-state="valid"] .move-preview-details{color:#b6f4b7}
.move-preview[data-state="invalid"] .move-preview-details{color:#ffd2af}
@media(max-width:950px){.move-preview{gap:4px;font-size:11px}.move-preview-details{font-size:10px}.move-preview strong{font-size:17px}}


/* v0.1.5: responsive game layout.
   Legacy desktop (>= 841px landscape / >= 701px when not portrait) is unchanged. */
.mobile-panel-toggle,.mobile-game-message{display:none}
.mobile-panel-content{display:flex;flex:1;flex-direction:column;gap:inherit;min-height:0;overflow:hidden}

/* True single-screen-width game for phones and portrait tablets.
   Flatten the original three-column markup only on mobile, so game logic and
   existing node IDs remain intact, and position the action bar BEFORE side panels. */
@media (max-width:840px) and (orientation:portrait), (max-width:700px){
  :root{--board-side:min(calc(100vw - 40px),570px)}
  html{height:auto;overflow-x:clip}
  body{min-width:0;width:100%;height:auto;min-height:100dvh;overflow-x:clip}
  .game-app{
    width:100%;max-width:100%;height:auto;min-height:100dvh;overflow:visible;
    display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
    grid-auto-rows:max-content;align-content:start;
    border-left:0;border-right:0
  }
  .game-app:before,.game-app:after{display:none}
  .main-stage,.player-side{display:contents}
  .flourish,.game-app .mascot{display:none}

  /* Compact, wrapping header prevents buttons from escaping the viewport. */
  .top-bar{
    grid-column:1/-1;grid-row:1;display:grid;grid-template-columns:minmax(0,1fr) auto;
    gap:8px 10px;align-items:center;min-height:0;padding:9px 11px;
  }
  .brand{grid-column:1;grid-row:1;min-width:0;font-size:10px;gap:6px}
  .brand strong{font-size:13px}
  .brand-mark{width:35px;height:35px;font-size:25px;flex-shrink:0}
  .headline{
    grid-column:2;grid-row:1;font-size:clamp(21px,5vw,30px);
    letter-spacing:2px;white-space:nowrap
  }
  .headline .ornament{font-size:15px}
  .headline small{font-size:9px;letter-spacing:1px}
  .header-actions{
    grid-column:1/-1;grid-row:2;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
    width:100%;gap:5px
  }
  .header-actions .gold-button{
    min-width:0;min-height:42px;white-space:normal;
    padding:7px 2px;font:700 11px/1.15 Georgia,serif;
  }

  .progress-track{
    grid-column:1/-1;grid-row:2;width:min(calc(100% - 26px),560px);
    height:23px;margin:9px auto 7px;min-width:0;padding:2px 7px
  }
  .progress-track i{min-width:0;max-width:22px}

  /* The two score cards sit together, above the square board. */
  .player-card{
    align-self:stretch;justify-self:stretch;width:auto;max-width:none;
    min-width:0;margin:0 4px 8px;border-width:3px
  }
  #player0Card{grid-column:1;grid-row:3;margin-left:12px}
  #player1Card{grid-column:2;grid-row:3;margin-right:12px}
  .player-card .player-name,.right-side .player-card .player-name{
    padding:5px;font-size:12px
  }
  .score{padding:4px 7px;gap:4px}
  .score strong{font-size:21px}
  .score small{font-size:10px}

  .center-area{
    grid-column:1/-1;grid-row:4;justify-self:center;align-self:start;
    width:min(100%,620px);min-width:0;margin:0;padding:0 12px;
    text-align:center
  }
  .board-crest{font-size:10px;letter-spacing:2px;margin:0 0 4px}
  .board-rim{width:100%;min-width:0;max-width:none;margin:0;padding:4px;border-width:3px}
  .board{
    width:100%;height:auto;aspect-ratio:1;
    grid-template-columns:repeat(15,minmax(0,1fr));
    grid-template-rows:repeat(15,minmax(0,1fr));
    border-width:2px;overflow:hidden
  }
  .board .cell{
    padding:0;min-width:0;min-height:0;
    font-size:clamp(11px,3.5vw,21px);
    border-right-width:1px;border-bottom-width:1px
  }
  .board .cell.pending{box-shadow:inset 0 0 0 2px #ef8520}

  .under-board{display:flex;gap:6px;min-height:46px;margin:4px 0 0;align-items:center}
  .move-preview{
    min-width:0;flex:1;flex-wrap:wrap;white-space:normal;gap:3px 6px;
    font-size:11px;text-align:left;overflow:visible
  }
  .move-preview-label{font-size:11px}
  .move-preview strong{font-size:17px}
  .move-preview-details{
    flex:1 1 100%;max-width:100%;font-size:11px;
    white-space:normal;overflow-wrap:anywhere;line-height:1.35
  }
  .timer-wrap{min-width:68px;flex-shrink:0}
  .timer-wrap strong{font-size:19px}

  .rack-frame{
    width:100%;display:flex;justify-content:space-between;
    align-items:center;gap:5px;padding:6px 0 4px
  }
  .rack{
    flex:1 1 auto;min-width:0;max-width:360px;height:clamp(48px,13vw,62px);
    display:flex;gap:3px;padding:3px 4px;overflow:visible
  }
  .tile{
    flex:1 1 0;min-width:0;width:0;max-width:54px;
    height:clamp(40px,11vw,52px);font-size:clamp(22px,7vw,31px);
    touch-action:manipulation
  }
  .tile.selected{transform:translateY(-5px)}
  .round-button{
    flex:0 0 42px;width:42px;height:42px;border-width:4px;
    font-size:27px;touch-action:manipulation
  }
  .mobile-game-message{
    display:block;min-height:28px;text-align:left;
    border-left:3px solid #d4a659;border-radius:3px;
    background:#240911cc;color:#ffe1a0;
    font:12px/1.4 Verdana,sans-serif;
    padding:6px 8px;margin:6px 0 10px;overflow-wrap:anywhere
  }
  .mobile-game-message.error{color:#ffc5b3;border-color:#f4937d}
  .mobile-game-message.success{color:#a9ffa9;border-color:#7ed78f}

  /* The game actions follow the rack rather than disappearing off-screen. */
  .control-bar{
    grid-column:1/-1;grid-row:5;position:sticky;bottom:0;z-index:15;
    display:flex;flex-direction:column;gap:5px;
    width:100%;min-height:0;margin:0;padding:7px 9px calc(8px + env(safe-area-inset-bottom));
    background:linear-gradient(#48151dfb,#22060dfb);border-top-width:3px;
  }
  .game-controls{
    width:100%;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
    gap:6px
  }
  .game-controls .gold-button{
    min-width:0;min-height:44px;padding:7px 4px;
    white-space:normal;font:700 12px/1.2 Georgia,serif
  }
  .bag-count{order:-1;min-width:0;font-size:11px;text-align:center}
  .bag-count strong{font-size:13px}
  .game-mode{display:none}

  /* Collapsible status and chat retain their original DOM and game IDs. */
  .side-panel{
    grid-column:1/-1;width:auto;max-width:none;height:auto;min-height:0;
    margin:12px 12px 0;padding:0;gap:0;overflow:visible;
    align-self:start
  }
  .status-panel{grid-row:6}
  .chat-panel{grid-row:7}
  .side-panel .mobile-panel-toggle{
    display:flex;align-items:center;justify-content:space-between;
    width:100%;min-height:44px;padding:11px 13px;
    color:#ffdb91;background:transparent;border:0;
    text-align:left;font:bold 16px Georgia,serif
  }
  .mobile-panel-content{display:none}
  .side-panel.mobile-expanded .mobile-panel-content{
    display:flex;flex:1;flex-direction:column;gap:8px;
    min-width:0;padding:0 12px 12px;overflow:visible
  }
  .side-panel .mobile-panel-content>h2{display:none}
  .side-panel .game-message{max-height:none;overflow-wrap:anywhere}
  .move-history{flex:none;max-height:145px;overflow-y:auto}
  .chat-messages{flex:none;min-height:75px;max-height:145px;overflow-y:auto}
  .chat-entry{flex-wrap:nowrap}
  .chat-entry input{min-width:0;flex:1;width:0}
  .chat-entry .gold-button{flex-shrink:0}
  .fine-print{grid-column:1/-1;grid-row:8;padding:12px 12px 18px;line-height:1.4}

  dialog{max-width:min(95vw,560px);max-height:calc(100dvh - 24px);overflow-y:auto}
  .dialog-body{padding:10px;gap:12px}
  .dialog-body label{flex-wrap:wrap;gap:8px}
  .dialog-body select{max-width:100%;min-width:0}
  .confirm-actions,menu{flex-wrap:wrap}
}
@media (max-width:375px){
  .top-bar{padding:7px 8px;gap:7px}
  .headline{font-size:21px;letter-spacing:1px}
  .header-actions .gold-button{font-size:10px}
  .center-area{padding:0 8px}
  .round-button{flex-basis:38px;width:38px;height:38px;font-size:24px}
  .rack{gap:2px}
  .game-controls .gold-button{font-size:11px;padding:6px 2px}
}


/* v0.1.8: accepted move review (new stones glow gold, full equations mint).
   The highlight is cleared after 3 seconds; it never changes game rules. */
.board .cell.recent-equation.occupied{
  background:#cff7e1;color:#164b31;
  box-shadow:inset 0 0 0 2px #34b478;
  z-index:1
}
.board .cell.recent-tile.occupied{
  background:#ffe07a;color:#672a0a;
  box-shadow:inset 0 0 0 3px #e88b17,0 0 8px 3px #ffe36a;
  z-index:2
}
.last-move-review{
  width:100%;margin:3px auto 4px;
  padding:7px 10px;text-align:center;
  border:2px solid #efb646;border-radius:7px;
  background:linear-gradient(100deg,#392513,#165344,#392513);
  color:#fff4b1;font:700 13px/1.4 Verdana,sans-serif;
  box-shadow:0 0 10px #d5b15b80;overflow-wrap:anywhere
}
.last-move-review[hidden]{display:none!important}
@media(max-width:840px) and (orientation:portrait),(max-width:700px){
  .board .cell.recent-equation.occupied{box-shadow:inset 0 0 0 2px #34b478}
  .board .cell.recent-tile.occupied{
    box-shadow:inset 0 0 0 2px #ea8110,0 0 5px 1px #ffe36a
  }
  .last-move-review{font-size:11px;padding:7px 6px;margin:5px auto}
  #lastExample{overflow-wrap:anywhere;white-space:normal}
}
@media(prefers-reduced-motion:no-preference){
  .board .cell.recent-tile.occupied{animation:abaku-accepted-pulse 1.2s ease-in-out infinite alternate}
  @keyframes abaku-accepted-pulse{
    from{filter:brightness(1)}
    to{filter:brightness(1.15)}
  }
}