@charset "UTF-8";
:root{--ink:#183b42;--muted:#698086;--teal:#087f83;--orange:#dc8134;--cream:#fbf7ec;--line:#dae5df;--paper:#fffef8;--shadow:0 14px 40px #284d4210;font-family:"Microsoft JhengHei","PingFang TC","Noto Sans TC",sans-serif;color:var(--ink);background:var(--cream);font-synthesis:none}
*{box-sizing:border-box}*[hidden]{display:none!important}body{margin:0;background:radial-gradient(circle at 12% 15%,#e1efdf88,transparent 34%),radial-gradient(circle at 92% 85%,#ffdfb555,transparent 32%),var(--cream);min-height:100vh}button,select{font:inherit}button{cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent;user-select:none}button:disabled{cursor:default}button:focus-visible,select:focus-visible{outline:4px solid #2468c3;outline-offset:4px}button{transition:background .15s,box-shadow .15s,transform .12s}button:active:not(:disabled){transform:translateY(2px)}button svg{pointer-events:none}.app-shell{max-width:2100px;margin:auto}.topbar{height:88px;padding:15px 26px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid #d8e2d5;background:#fffdf5cc}.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}.brand-mark{width:52px;height:52px}.brand h1{margin:0;font-size:25px;letter-spacing:.05em;line-height:1.2}.brand h1 span{font-size:16px;letter-spacing:.03em;font-weight:600;margin-left:12px}.brand p{font-size:12px;letter-spacing:.1em;margin:6px 0 0;color:var(--muted)}.quick-steps{display:flex;align-items:center;gap:11px;color:#48686a;font-size:15px;white-space:nowrap}.quick-steps span{display:flex;align-items:center;gap:7px}.quick-steps b{display:grid;place-items:center;background:#e7f0e7;width:26px;height:26px;border-radius:50%;font-size:14px;color:var(--teal)}.quick-steps i{font-style:normal;color:#b5c4ba;font-size:23px}.header-actions{display:flex;gap:8px}.button{border:0;border-radius:14px;min-height:56px;font-weight:700;padding:12px 22px;display:inline-flex;align-items:center;justify-content:center;gap:10px}.button-quiet{background:#edf2e9;color:var(--ink)}.header-actions .button{font-size:16px;padding:10px 16px;min-height:56px}.button:hover:not(:disabled),.rail-button:hover:not(:disabled){filter:brightness(.98);box-shadow:0 4px 12px #183b4215}.eyebrow{font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--teal)}.setup-view{max-width:1280px;margin:auto;padding:28px 28px 16px}.setup-intro{text-align:center}.setup-intro h2{font-size:38px;letter-spacing:.03em;line-height:1.25;margin:9px 0 8px;font-weight:800}.setup-intro h2 em{font-style:normal;color:var(--teal)}.setup-intro p{font-size:16px;color:var(--muted);margin:0}.setup-players{display:grid;grid-template-columns:minmax(0,1fr) 96px minmax(0,1fr);align-items:center;margin-top:26px;gap:18px}.setup-player,.player-panel{--team:var(--teal);--team-rgb:8,127,131;--team-pale:#e7f3ee;--team-border:#c6e2d9}.team-right{--team:var(--orange);--team-rgb:220,129,52;--team-pale:#fff0dc;--team-border:#efd6b6}.setup-player{background:var(--paper);padding:25px 28px 27px;border:1px solid var(--team-border);border-top:5px solid var(--team);border-radius:24px;box-shadow:var(--shadow)}.setup-player-heading{display:flex;align-items:center;gap:14px;margin-bottom:21px}.team-dot{width:51px;height:51px;background:var(--team-pale);color:var(--team);font-size:26px;font-weight:800;border-radius:16px;display:grid;place-items:center}.setup-player h3{margin:0;font-size:22px}.setup-player-heading p{margin:4px 0 0;color:var(--muted);font-size:13px}.field-label{display:block;font-size:14px;font-weight:700;margin-bottom:9px;color:#49666b}.seat-picker{display:flex;justify-content:space-between;align-items:center;width:100%;min-height:69px;border:2px solid var(--team-border);border-radius:14px;padding:10px 18px;background:var(--team-pale);color:var(--team);font-size:25px;font-weight:800}.seat-picker span:last-child{font-size:26px;font-weight:400}.difficulty-label{margin-top:20px}.level-options{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.level-option{min-height:73px;padding:10px 4px;border:1px solid #dee6db;border-radius:12px;background:#fff;color:#647a7c}.level-option strong{display:block;font-size:19px}.level-option small{display:block;margin-top:5px;font-size:11px;font-weight:400;white-space:nowrap}.level-option.selected{background:var(--team);border-color:var(--team);color:white;box-shadow:0 5px 12px rgba(var(--team-rgb),.16)}.setup-together{text-align:center;align-self:center;color:#9e9d7f;display:flex;flex-direction:column;align-items:center;gap:4px;font-size:15px}.setup-together strong{font-size:21px;letter-spacing:.15em;color:#828c72}.setup-together svg{width:88px;margin-top:8px}.setup-bottom{display:flex;justify-content:space-between;align-items:center;gap:30px;max-width:940px;margin:26px auto 0}.mode-field{display:grid;grid-template-columns:auto auto;align-items:center;column-gap:18px}.mode-field>.field-label{margin:0}.mode-options{display:flex;gap:6px;padding:4px;background:#e9eddf;border-radius:14px}.mode-option{min-height:48px;min-width:110px;border:0;border-radius:10px;background:transparent;color:#5c7068;font-weight:700;font-size:17px;padding:9px 16px}.mode-option.selected{color:var(--teal);background:white;box-shadow:0 2px 5px #20452c0a}.mode-option:disabled{opacity:.45}.mode-field p{grid-column:1/-1;color:var(--muted);font-size:12px;min-height:19px;margin:8px 0 0}.start-button{min-width:270px;min-height:74px;background:var(--teal);color:white;border-radius:19px;font-size:25px;box-shadow:0 8px 0 #05666b,0 14px 26px #087f8322;justify-content:space-between;padding:17px 30px}.start-button span{font-size:30px;font-weight:400}.start-button:active:not(:disabled){transform:translateY(5px);box-shadow:0 3px 0 #05666b}.start-button:disabled{opacity:.55}.setup-footnote{text-align:center;color:#7f8e7d;font-size:12px;margin-top:28px;line-height:1.7}
.arena-view{display:grid;grid-template-columns:minmax(0,1fr) 90px minmax(0,1fr);gap:15px;padding:16px 20px 18px;height:calc(100dvh - 88px);min-height:590px}.player-panel{min-width:0;display:flex;flex-direction:column;background:#fffef8;border:2px solid var(--team-border);border-radius:23px;box-shadow:var(--shadow);overflow:hidden;position:relative}.player-header{padding:15px 18px 13px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--team-border);background:var(--team-pale);gap:12px}.player-identification{display:flex;align-items:center;gap:10px;min-width:0}.player-seat{font-size:28px;font-weight:900;color:var(--team);white-space:nowrap}.player-seat small{font-size:14px;font-weight:600;margin-left:3px}.player-level{font-size:12px;color:#657a73;white-space:nowrap}.player-clock{font-family:"Bahnschrift","Aptos Mono","Consolas",monospace;font-variant-numeric:tabular-nums;font-weight:600;letter-spacing:.02em;font-size:37px;color:var(--team);white-space:nowrap;line-height:1}.player-clock-label{text-align:right;color:#72837a;font-size:11px;margin-bottom:5px}.player-content{padding:13px 15px 10px;display:flex;flex:1;flex-direction:column;gap:12px;min-height:0}.play-stage{display:grid;grid-template-columns:minmax(148px,.78fr) minmax(245px,1.22fr);gap:16px;flex:1;min-height:0;align-items:center}.selected-clue{text-align:center;align-self:center}.selected-clue-heading{font-size:17px;font-weight:800;margin-bottom:7px}.selected-clue-heading strong{font-size:25px;color:var(--team);margin-right:3px}.clue-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);width:132px;aspect-ratio:1;border:2px solid #526d62;gap:1px;background:#97aaa0;margin:0 auto;border-radius:3px;overflow:hidden}.clue-grid .clue-cell{background:#fffcf2;display:grid;place-items:center;font-size:27px;font-weight:800;color:var(--teal)}.clue-grid .clue-cell.cross{color:#c4594e}.clue-grid .clue-cell.star{background:#deeee2}.clue-note{font-size:13px;line-height:1.55;min-height:40px;color:#687f74;margin:9px 0 7px}.clue-note b{color:var(--team)}.no-clue{min-height:132px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:7px;color:#74877c;background:#f2f4e9;border:1px dashed #c6d0bf;border-radius:14px;line-height:1.5;font-size:14px;padding:8px}.no-clue span{font-size:28px;color:#b8c4ac}.all-clues-button{min-height:56px;padding:8px 13px;background:#f2f4e9;border:1px solid #dce5d6;border-radius:11px;color:#43665d;font-size:14px;font-weight:700;width:100%}.board-area{max-width:420px;width:100%;margin:auto;position:relative}.board-roof{display:block;width:100%;height:39px;color:var(--team);margin:0 auto -2px}.board-house{padding:9px;background:#e7d4ad;border:2px solid #d8bf91;border-top:0;border-radius:0 0 13px 13px;box-shadow:0 5px 0 #d4c6a7}.room-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;aspect-ratio:1}.room{border:0;background:#fff9e8;border-radius:7px;display:flex;align-items:center;justify-content:center;position:relative;box-shadow:inset 0 2px 6px #a2844920;min-width:0;min-height:56px;padding:4px;color:var(--ink)}.room.empty:hover:not(:disabled){background:#e8f2e2;box-shadow:inset 0 0 0 3px var(--team)}.room-label{font-size:13px;font-weight:400;color:#9c9b7f}.room-number{font-size:clamp(34px,4.4vh,64px);font-weight:800;width:77%;height:77%;border-radius:50%;background:#e5efe1;display:grid;place-items:center;line-height:1;color:#305b57}.room.selected-number .room-number{background:var(--team);color:white;box-shadow:0 4px 0 rgba(var(--team-rgb),.22)}.room.just-placed .room-number{animation:move-in .22s ease-out}.room.wrong-cell{box-shadow:inset 0 0 0 3px #d86e5d;background:#fff0e9}.room .room-corner{position:absolute;top:4px;left:7px;font-size:10px;color:#9d9e83}.house-label{text-align:center;font-size:12px;color:#7d8d75;margin-top:10px;letter-spacing:.04em}.number-instruction{display:flex;align-items:center;justify-content:space-between;font-size:13px;font-weight:700;color:#5f766b;margin:1px 0 6px}.number-instruction span{font-size:11px;font-weight:400;color:#8a9782}.number-palette{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));gap:6px}.number-choice{height:clamp(56px,6.5vh,75px);min-width:0;min-height:56px;border:2px solid var(--team-border);background:#fffdf6;border-radius:12px;color:var(--team);font-weight:800;font-size:30px;position:relative;padding:0}.number-choice.selected{background:var(--team);color:white;border-color:var(--team);box-shadow:0 4px 0 rgba(var(--team-rgb),.22)}.number-choice.on-board:not(.selected){background:var(--team-pale)}.number-choice.on-board::after{content:"";position:absolute;bottom:5px;left:calc(50% - 2px);width:4px;height:4px;border-radius:50%;background:currentColor;opacity:.6}.relations-area{display:flex;align-items:center;flex-wrap:wrap;gap:7px;min-height:40px;padding-top:2px}.relations-empty{font-size:12px;color:#8d9989;line-height:1.5}.relation-item{display:flex;align-items:center;gap:7px;flex:1;min-width:120px;padding:6px 8px;background:#f8f4e8;border:1px solid #ece2ca;border-radius:9px;font-size:11px;line-height:1.4;color:#6d735e}.relation-text strong{display:block;color:#445d51;font-size:13px;white-space:nowrap}.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);width:37px;height:37px;border:1px solid #aab49a;background:#bec7af;gap:1px;flex-shrink:0}.mini-grid span{display:grid;place-items:center;background:#fffcf0;font-size:10px;color:#799779}.mini-grid span.reserved{background:#d7e9d4;color:#087f83;font-weight:800}.relation-line{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;border:1px solid #b9c6aa;width:38px;height:17px;flex-shrink:0}.relation-line.vertical{grid-template-columns:1fr;grid-template-rows:repeat(3,1fr);height:38px;width:17px;margin:0 10px}.relation-line span{background:#e0ecd7;display:grid;place-items:center;color:#27857f;font-size:10px}.player-feedback{font-size:14px;font-weight:700;color:#567161;padding:11px 15px;min-height:44px;background:#f3f6ec;border-top:1px solid #e3ebdc;line-height:1.5}.player-feedback.is-error{color:#a95145;background:#fff2e8}.player-feedback.is-success{color:var(--team);background:var(--team-pale)}.player-finished{border-color:var(--team);box-shadow:0 0 0 3px rgba(var(--team-rgb),.1),var(--shadow)}.player-finished .room-number{background:var(--team-pale);color:var(--team)}.player-finished .selected-clue{opacity:.7}.panel-pause{position:absolute;inset:81px 0 0;display:flex;align-items:center;justify-content:center;background:#fffdf2ed;z-index:4;backdrop-filter:blur(3px);flex-direction:column;gap:10px;color:var(--team);font-size:23px;font-weight:700}.panel-pause b{font-size:51px;font-weight:600}.panel-pause small{font-size:15px;font-weight:400}.teacher-rail{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:13px;min-width:0}.round-indicator{margin-bottom:auto;padding-top:5px;font-size:11px;color:#768a76;display:flex;align-items:center;gap:5px;text-align:center;line-height:1.5;flex-wrap:wrap;justify-content:center}.live-dot{width:7px;height:7px;background:#5fa782;border-radius:50%}.rail-label{font-size:12px;color:#889482;margin-top:14px}.rail-button{border:1px solid #d9e2d2;background:#fffdf4;color:#5e766b;border-radius:15px;width:78px;min-height:76px;padding:10px 3px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px}.rail-button>span{font-size:27px;line-height:1}.rail-button>strong{font-size:15px;line-height:1.3}.rail-button.pause-button{background:#e4eee0;color:var(--teal);border-color:#cddfc7}.rail-button.finish-button{color:#a27959;background:#f4eee0}.rail-button.next-button{color:white;background:var(--teal);border-color:var(--teal);min-height:112px}.rail-tip{margin-top:auto;padding-bottom:4px;text-align:center;font-size:11px;color:#8a9984;line-height:1.8}.storage-banner{position:fixed;left:12px;right:12px;bottom:6px;z-index:25;border-radius:10px;background:#fff0d4;border:1px solid #e7c994;color:#7d612d;margin:0;padding:8px 15px;text-align:center;font-size:12px}.toast{position:fixed;left:50%;bottom:27px;transform:translateX(-50%);max-width:90vw;z-index:90;background:#193f42;color:white;font-size:17px;font-weight:700;border-radius:15px;padding:16px 27px;box-shadow:0 8px 26px #173f422a;text-align:center;line-height:1.5}.modal{border:1px solid #d7e2d1;border-radius:25px;padding:28px;background:#fffdf5;color:var(--ink);box-shadow:0 25px 100px #163b4230;max-height:92dvh;width:min(90vw,760px)}.modal::backdrop{background:#163c426b;backdrop-filter:blur(4px)}.modal-heading{display:flex;align-items:center;justify-content:space-between;gap:15px}.modal-heading h2{font-size:30px;margin:5px 0 0}.close-button{border:0;background:#edf0e5;color:#668172;border-radius:50%;min-width:56px;height:56px;font-size:32px;line-height:1}.modal-description{color:#738374;line-height:1.7;margin:12px 0 22px}.seat-modal{width:min(90vw,590px)}.seat-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:9px}.seat-option{min-height:61px;font-size:25px;font-weight:700;border:1px solid #dce5d4;border-radius:12px;color:var(--ink);background:white}.seat-option.current{color:white;background:var(--teal);border-color:var(--teal)}.seat-option:disabled{color:#b9c2b1;background:#eeeee4;border-style:dashed}.all-clues{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px}.all-clue-card{padding:12px;border:1px solid #dce5d5;background:#fffefb;border-radius:14px;text-align:center}.all-clue-card h3{font-size:17px;margin:0 0 8px}.all-clue-card .clue-grid{width:102px}.all-clue-card .no-clue{min-height:102px;font-size:12px}.all-clue-card .no-clue span{font-size:21px}.all-relations{margin-top:16px;display:flex;gap:9px;flex-wrap:wrap}.all-relations .relation-item{font-size:14px;min-width:180px}.all-relations .relation-text strong{font-size:16px}.history-modal{width:min(95vw,1050px)}.history-tools{display:flex;align-items:flex-end;gap:14px;margin-top:24px}.history-tools label{display:flex;flex-direction:column;gap:7px;font-size:13px;color:#66806e}.history-tools select{min-height:56px;min-width:170px;border:1px solid #cdddc6;border-radius:11px;background:white;padding:8px 34px 8px 13px;color:var(--ink);font-size:17px}.export-button{margin-left:auto;background:var(--teal);color:white;font-size:17px}.history-summary{font-size:13px;color:#7f8b7c}.history-table-wrap{max-height:48vh;overflow:auto;border:1px solid #e0e7d8;border-radius:13px;background:white}.history-table{width:100%;border-collapse:collapse;text-align:left;font-size:15px}.history-table th{position:sticky;top:0;background:#edf2e6;color:#5b7767;font-size:13px;padding:12px 15px;white-space:nowrap;z-index:1}.history-table td{padding:14px 15px;border-top:1px solid #edf0e5;vertical-align:middle;line-height:1.6}.history-table td small{display:block;color:#81917f;font-size:12px}.history-time{font-family:Consolas,monospace;font-size:18px;font-weight:700}.history-winner{color:var(--teal);font-weight:700}.history-empty{text-align:center;padding:38px 15px;color:#80907c}.history-empty>span{font-size:50px;color:#bccbb1}.history-empty h3{font-size:20px;color:#5f7e68;margin:10px}.history-empty p{font-size:14px}.history-note{font-size:12px;color:#87927e;line-height:1.7;margin-bottom:0}.end-modal{width:min(90vw,540px)}.end-actions{display:flex;justify-content:flex-end;gap:10px}.end-confirm{background:var(--teal);color:white}.reduced-motion *{animation:none!important;transition:none!important}@keyframes move-in{from{transform:translateY(-12px) scale(.82);opacity:.5}to{transform:none;opacity:1}}
@media(min-width:1600px){.topbar{height:100px;padding:18px 36px}.brand h1{font-size:29px}.brand h1 span{font-size:19px}.brand p{font-size:14px}.brand-mark{width:60px;height:60px}.quick-steps{font-size:19px}.quick-steps b{width:31px;height:31px;font-size:17px}.arena-view{height:calc(100dvh - 100px);padding:22px 28px;grid-template-columns:minmax(0,1fr) 106px minmax(0,1fr);gap:21px}.player-header{padding:18px 23px}.player-seat{font-size:35px}.player-seat small{font-size:18px}.player-level{font-size:15px}.player-clock{font-size:48px}.player-clock-label{font-size:13px}.player-content{padding:20px 23px 15px;gap:17px}.play-stage{gap:24px;grid-template-columns:minmax(190px,.7fr) minmax(290px,1.3fr)}.clue-grid{width:170px}.clue-grid .clue-cell{font-size:35px}.selected-clue-heading{font-size:21px}.selected-clue-heading strong{font-size:33px}.clue-note{font-size:16px;min-height:48px;margin-top:12px}.all-clues-button{font-size:17px;min-height:62px}.board-area{max-width:440px}.board-roof{height:48px}.room-grid{gap:8px}.room-label{font-size:16px}.number-choice{font-size:38px}.number-instruction{font-size:17px}.number-instruction span{font-size:13px}.relations-area{gap:10px;min-height:53px}.relation-item{font-size:14px;padding:9px 11px}.relation-text strong{font-size:16px}.mini-grid{width:46px;height:46px}.relation-line{width:46px;height:20px}.relation-line.vertical{height:46px;width:20px}.player-feedback{font-size:18px;min-height:53px;padding:13px 20px}.rail-button{width:91px;min-height:91px}.rail-button>strong{font-size:18px}.rail-label,.round-indicator,.rail-tip{font-size:14px}.setup-view{padding-top:65px;max-width:1400px}.setup-intro h2{font-size:48px}.setup-intro p{font-size:19px}.setup-player{padding:32px}.setup-players{margin-top:35px}.level-option{min-height:85px}.level-option strong{font-size:22px}.level-option small{font-size:13px}.setup-bottom{margin-top:35px}.setup-footnote{font-size:14px;margin-top:34px}}
@media(max-width:1350px) and (min-width:1101px){.brand h1 span{display:none}.topbar{padding:12px 18px}.quick-steps{gap:7px;font-size:13px}.arena-view{gap:10px;padding:13px 12px;grid-template-columns:minmax(0,1fr) 74px minmax(0,1fr)}.teacher-rail{gap:10px}.rail-button{width:68px}.player-content{padding:12px;gap:10px}.play-stage{gap:10px;grid-template-columns:minmax(130px,.67fr) minmax(225px,1.33fr)}.clue-grid{width:120px}.all-clues-button{font-size:12px;padding:8px}.number-palette{gap:4px}.player-header{padding:14px 12px}.player-clock{font-size:31px}.player-seat{font-size:26px}.relation-item{min-width:100px;font-size:10px;padding:5px}.relation-text strong{font-size:12px}.setup-view{padding-top:23px}.setup-intro h2{font-size:34px}.setup-player{padding:23px}.setup-players{margin-top:20px}.setup-bottom{margin-top:22px}}
@media(max-height:820px) and (min-width:1101px){.setup-view{padding-top:20px}.setup-players{margin-top:20px}.setup-intro h2{font-size:34px}.setup-player{padding:20px 25px}.setup-player-heading{margin-bottom:14px}.seat-picker{min-height:62px}.difficulty-label{margin-top:14px}.setup-bottom{margin-top:20px}.setup-footnote{margin-top:20px}.play-stage{flex:1}.board-area{max-width:310px}.clue-grid{width:116px}.clue-note{margin:7px 0 5px;font-size:12px;min-height:35px}.selected-clue-heading{font-size:16px;margin-bottom:5px}.selected-clue-heading strong{font-size:23px}.board-roof{height:29px}.board-house{padding:7px}.house-label{margin-top:7px;font-size:11px}.player-header{padding-top:12px;padding-bottom:11px}.player-content{gap:9px}.number-choice{height:56px}.number-instruction{margin-bottom:5px}.relations-area{min-height:34px;gap:5px}.relation-item{padding:5px 6px}.player-feedback{min-height:40px;padding:9px 12px;font-size:13px}.rail-button{min-height:69px}.teacher-rail{gap:10px}}
@media(max-width:1100px){.topbar{height:auto;min-height:83px;flex-wrap:wrap;padding:13px 16px;gap:10px}.brand h1{font-size:22px}.brand h1 span{font-size:13px;margin-left:7px}.brand-mark{width:44px;height:44px}.brand p{font-size:10px}.quick-steps{order:3;flex-basis:100%;justify-content:center;font-size:13px}.header-actions .button{font-size:14px;padding:9px 11px}.header-actions .button span{display:none}.setup-view{padding:25px 18px}.setup-intro h2{font-size:30px}.setup-intro p{font-size:14px;line-height:1.6}.setup-players{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:15px}.setup-together{display:none}.setup-player{padding:21px 18px}.setup-player h3{font-size:20px}.setup-player-heading p{font-size:11px}.level-option small{font-size:10px}.setup-bottom{gap:15px}.start-button{min-width:240px}.mode-field{display:block}.mode-options{margin-top:7px}.arena-view{height:auto;min-height:0;grid-template-columns:1fr;gap:14px;padding:13px}.teacher-rail{grid-row:1;flex-direction:row;justify-content:center;flex-wrap:wrap;padding:4px 0;gap:10px}.round-indicator{margin:0 10px 0 0;padding:0}.rail-label,.rail-tip{display:none}.rail-button,.rail-button.next-button{width:auto;min-width:90px;min-height:56px;flex-direction:row;gap:9px;padding:8px 13px;border-radius:12px}.rail-button>span{font-size:23px}.rail-button>strong{font-size:14px}.rail-button br{display:none}.player-panel{min-height:570px}.player-content{padding:18px 22px}.play-stage{grid-template-columns:minmax(145px,.65fr) minmax(230px,1.35fr);gap:24px}.board-area{max-width:340px}.number-choice{height:61px}.player-header{padding:15px 22px}.player-feedback{font-size:15px}.relations-area{min-height:45px}.panel-pause{inset:80px 0 0}}
@media(max-width:600px){.brand h1 span{display:block;margin:2px 0 0;font-size:12px}.brand h1{font-size:19px}.brand p{font-size:9px;margin-top:4px}.brand{gap:8px}.brand-mark{width:40px}.quick-steps{gap:8px;font-size:12px}.quick-steps b{width:22px;height:22px;font-size:12px}.setup-intro h2{font-size:29px}.setup-intro h2 em{display:block}.setup-players{grid-template-columns:1fr;margin-top:23px}.setup-player{padding:22px}.setup-bottom{flex-direction:column;gap:21px;align-items:stretch;margin-top:22px}.mode-field{display:flex;flex-wrap:wrap;gap:8px 15px;align-items:center;justify-content:center}.mode-options{margin:0}.mode-field p{width:100%;text-align:center;margin:0}.start-button{width:100%;min-height:69px}.setup-footnote{font-size:11px;max-width:330px;margin:24px auto 0}.player-content{padding:14px 11px}.play-stage{grid-template-columns:minmax(112px,.7fr) minmax(185px,1.3fr);gap:10px;align-items:center}.clue-grid{width:105px}.selected-clue-heading{font-size:13px}.selected-clue-heading strong{font-size:22px}.clue-note{font-size:11px;min-height:34px;margin-top:7px}.all-clues-button{font-size:11px;min-height:56px;padding:7px}.board-house{padding:5px}.room-grid{gap:4px}.board-roof{height:28px}.room-number{font-size:34px;width:83%;height:83%}.room-label{font-size:10px}.house-label{font-size:10px;line-height:1.5}.player-panel{min-height:555px}.player-header{padding:14px}.player-seat{font-size:26px}.player-clock{font-size:33px}.number-palette{grid-template-columns:repeat(5,1fr);gap:7px}.number-choice{height:56px}.number-instruction{font-size:12px}.number-instruction span{font-size:10px}.relations-area{gap:5px}.relation-item{min-width:100px;padding:5px}.relation-text strong{font-size:12px}.player-feedback{font-size:13px}.teacher-rail{gap:7px}.round-indicator{font-size:10px;width:100%;margin:0}.rail-button{min-width:87px;padding:8px 12px}.modal{padding:20px;border-radius:20px;max-height:94dvh}.modal-heading h2{font-size:25px}.seat-grid{gap:6px}.seat-option{min-height:56px;font-size:23px}.all-clues{gap:7px}.all-clue-card{padding:9px 4px}.all-clue-card h3{font-size:14px}.all-clue-card .clue-grid{width:78px}.all-clue-card .clue-cell{font-size:20px}.all-clue-card .no-clue{font-size:10px;min-height:78px;padding:3px}.history-tools{gap:8px;flex-wrap:wrap}.history-tools label{flex:1}.history-tools select{min-width:0;width:100%;font-size:15px}.export-button{margin:0;width:100%}.history-table{font-size:12px;min-width:550px}.history-table td,.history-table th{padding:10px}.history-time{font-size:15px}.history-note{font-size:11px}.end-actions{flex-direction:column}.end-actions .button{width:100%}.toast{font-size:14px;width:90vw;padding:14px 18px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}

/* Touch TV: every contact acts independently; mode controls keep a full touch target. */
.room,.number-choice{touch-action:none}.mode-option{min-height:56px}
/* Each child can inspect cards without blocking the other house. */
.side-clues-overlay{position:absolute;inset:0;z-index:5;display:flex;flex-direction:column;background:#fffdf6;padding:17px 18px;gap:10px;border-radius:20px}
.side-clues-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.side-clues-heading h3{margin:4px 0 0;font-size:23px;color:var(--team)}
.side-clues-heading .close-button{background:var(--team-pale);color:var(--team);flex-shrink:0;min-width:56px;height:56px}
.side-clues-hint{font-size:13px;color:#677d6e;line-height:1.6;margin:0}.side-clues-hint span{display:block;font-size:11px;color:#8b987f}
.side-clues-scroll{overflow-y:auto;overscroll-behavior:contain;min-height:0;flex:1;padding:2px 3px 10px;touch-action:pan-y}
.side-clues-scroll .all-clues{margin-top:0;gap:9px}.side-clues-scroll .all-clue-card{min-height:145px;cursor:pointer;color:var(--ink);font:inherit;padding:9px 5px}.side-clues-scroll .all-clue-card h3{font-size:15px;margin-bottom:7px}.side-clues-scroll .clue-grid{width:92px}.side-clues-scroll .clue-cell{font-size:22px}.side-clues-scroll .no-clue{min-height:92px;font-size:10px;padding:4px}.side-clues-scroll .no-clue span{font-size:20px}
.side-clues-scroll .all-clue-card.is-selected{border:2px solid var(--team);background:var(--team-pale)}
.side-clues-scroll .all-relations{margin-top:12px}.side-clues-scroll .all-relations .relation-item{min-width:125px;font-size:11px}.side-clues-scroll .all-relations .relation-text strong{font-size:13px}
.side-clues-time{display:flex;align-items:center;justify-content:center;gap:13px;font-size:12px;color:#84927c;border-top:1px solid #e5eadb;padding-top:8px}.side-clues-time strong{font-family:Consolas,monospace;font-size:21px;color:var(--team)}
.panel-pause{z-index:6}
@media(min-width:1600px){.side-clues-overlay{padding:24px;gap:15px}.side-clues-heading h3{font-size:29px}.side-clues-hint{font-size:16px}.side-clues-hint span{font-size:13px}.side-clues-scroll .all-clue-card{min-height:183px;padding:14px 8px}.side-clues-scroll .all-clue-card h3{font-size:19px}.side-clues-scroll .clue-grid{width:125px}.side-clues-scroll .clue-cell{font-size:30px}.side-clues-scroll .no-clue{min-height:125px;font-size:13px}.side-clues-scroll .all-relations .relation-item{font-size:15px}.side-clues-scroll .all-relations .relation-text strong{font-size:17px}}
@media(max-width:600px){.side-clues-overlay{padding:14px 10px}.side-clues-heading h3{font-size:20px}.side-clues-scroll .all-clues{gap:6px}.side-clues-scroll .all-clue-card{min-height:126px;padding:7px 2px}.side-clues-scroll .all-clue-card h3{font-size:12px}.side-clues-scroll .clue-grid{width:74px}.side-clues-scroll .no-clue{min-height:74px;font-size:9px}.side-clues-hint{font-size:11px}}
/* Always-visible clues, real dragging, and a one-house practice mode. */
.play-mode-options{display:flex;justify-content:center;gap:12px;margin:19px auto 0;max-width:620px}.play-mode-option{display:grid;grid-template-columns:38px 1fr;grid-template-rows:auto auto;column-gap:12px;align-items:center;text-align:left;flex:1;min-height:65px;padding:10px 18px;border:1px solid #d9e3d1;background:#fffdf6;color:#64806b;border-radius:15px}.play-mode-option>span{grid-row:1/3;font-size:26px;letter-spacing:-8px}.play-mode-option>strong{font-size:19px}.play-mode-option>small{font-size:11px;margin-top:3px;color:#899781}.play-mode-option.selected{border:2px solid var(--teal);background:#e7f2e9;color:var(--teal)}.setup-players.single-mode{display:block;max-width:600px;margin-left:auto;margin-right:auto}.setup-view.single-mode .setup-bottom{justify-content:center}.setup-view.single-mode .start-button{min-width:320px}
.play-stage{grid-template-columns:minmax(215px,.94fr) minmax(245px,1fr);gap:14px;align-items:center}.always-clues{min-width:0;width:100%}.clues-section-heading{font-size:14px;font-weight:800;color:#4f7264;margin-bottom:8px;display:flex;align-items:center;justify-content:space-between;gap:4px;white-space:nowrap}.clues-section-heading>span{font-size:10px;font-weight:400;color:#8a9984}.clue-matrix{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.clue-matrix .all-clue-card{min-width:0;min-height:83px;border:1px solid #dce4d2;border-radius:8px;background:#fffdf3;padding:5px 2px;color:#596f5c;cursor:pointer}.clue-matrix .all-clue-card h3{font-size:10px;font-weight:500;margin:0 0 4px;line-height:1.2;white-space:nowrap}.clue-matrix .all-clue-card h3 b{font-size:15px;margin-right:2px;color:var(--team)}.clue-matrix .all-clue-card .clue-grid{width:60px;max-width:94%;border-width:1px}.clue-matrix .all-clue-card .clue-cell{font-size:16px;line-height:1}.clue-matrix .all-clue-card.is-selected{border:2px solid var(--team);background:var(--team-pale);padding:4px 1px;box-shadow:0 0 0 1px rgba(var(--team-rgb),.06)}.clue-matrix .all-clue-card .no-clue{width:auto;min-height:60px;height:60px;min-width:0;padding:2px;font-size:8px;border:0;background:transparent;gap:1px;line-height:1.5}.clue-matrix .all-clue-card .no-clue span{font-size:16px;line-height:1}.house-heading{margin-bottom:2px}.number-choice,.room:has(.room-number){cursor:grab}.number-choice:active,.room:has(.room-number):active{cursor:grabbing}.number-tray{min-width:0}.arena-view.single-mode{max-width:1510px;margin:auto;grid-template-columns:minmax(0,1fr) 95px}.arena-view.single-mode .teacher-rail{grid-column:2;grid-row:1}.arena-view.single-mode .play-stage{grid-template-columns:minmax(330px,1fr) minmax(330px,1fr);gap:48px}.arena-view.single-mode .always-clues{max-width:500px;margin:auto}.arena-view.single-mode .board-area{max-width:450px}.arena-view.single-mode .clue-matrix{gap:10px}.arena-view.single-mode .all-clue-card{padding:9px;min-height:130px}.arena-view.single-mode .all-clue-card h3{font-size:14px}.arena-view.single-mode .all-clue-card h3 b{font-size:22px}.arena-view.single-mode .all-clue-card .clue-grid{width:98px}.arena-view.single-mode .all-clue-card .clue-cell{font-size:26px}.arena-view.single-mode .all-clue-card .no-clue{height:98px;min-height:98px;font-size:11px}.arena-view.single-mode .number-tray{max-width:930px;width:100%;align-self:center}.arena-view.single-mode .number-choice{font-size:38px}.arena-view.single-mode .relations-area{justify-content:center}.arena-view.single-mode .relations-area .relation-item{flex:0 1 auto;min-width:210px;padding-left:13px;padding-right:13px}.history-absent{color:#a0a792;text-align:center}
@media(min-width:1600px){.play-stage{grid-template-columns:minmax(285px,.94fr) minmax(320px,1fr);gap:23px}.clues-section-heading{font-size:18px;margin-bottom:11px}.clues-section-heading>span{font-size:12px}.clue-matrix{gap:9px}.clue-matrix .all-clue-card{padding:9px 3px;min-height:125px;border-radius:11px}.clue-matrix .all-clue-card h3{font-size:14px;margin-bottom:6px}.clue-matrix .all-clue-card h3 b{font-size:22px}.clue-matrix .all-clue-card .clue-grid{width:86px}.clue-matrix .all-clue-card .clue-cell{font-size:23px}.clue-matrix .all-clue-card .no-clue{height:86px;min-height:86px;font-size:11px}.clue-matrix .all-clue-card.is-selected{padding:8px 2px}.arena-view.single-mode .all-clue-card{min-height:154px;padding:12px}.arena-view.single-mode .all-clue-card .clue-grid{width:113px}.arena-view.single-mode .all-clue-card .clue-cell{font-size:30px}.arena-view.single-mode .all-clue-card .no-clue{height:113px;min-height:113px}.arena-view.single-mode .board-area{max-width:490px}.arena-view.single-mode{grid-template-columns:minmax(0,1fr) 106px}}
@media(max-height:820px) and (min-width:1101px){.setup-view{padding:10px 28px 12px}.setup-intro .eyebrow{font-size:11px}.setup-intro h2{font-size:30px;margin:5px 0}.setup-intro p{font-size:14px}.play-mode-options{margin-top:10px;gap:9px;max-width:560px}.play-mode-option{min-height:56px;padding:7px 14px;column-gap:9px}.play-mode-option>strong{font-size:17px}.play-mode-option>small{font-size:10px;margin-top:2px}.setup-players{margin-top:12px}.setup-player{padding:15px 24px 18px}.setup-player-heading{margin-bottom:10px;gap:11px}.setup-player-heading .team-dot{width:43px;height:43px;font-size:23px}.setup-player h3{font-size:19px}.setup-player-heading p{font-size:11px;margin-top:3px}.setup-player .field-label{font-size:12px;margin-bottom:6px}.seat-picker{min-height:56px;font-size:23px;padding:8px 15px}.difficulty-label{margin-top:11px}.level-option{min-height:62px;padding:7px 4px}.level-option strong{font-size:17px}.level-option small{font-size:10px;margin-top:4px}.setup-bottom{margin-top:13px}.setup-bottom .start-button{min-height:65px;font-size:23px}.setup-footnote{font-size:11px;margin-top:16px}.play-stage{grid-template-columns:minmax(220px,.98fr) minmax(235px,1fr);gap:10px}.clues-section-heading{font-size:12px;margin-bottom:6px}.clues-section-heading>span{font-size:9px}.clue-matrix{gap:5px}.clue-matrix .all-clue-card{min-height:80px;padding:4px 1px}.clue-matrix .all-clue-card h3{font-size:9px;margin-bottom:3px}.clue-matrix .all-clue-card h3 b{font-size:14px}.clue-matrix .all-clue-card .clue-grid{width:58px}.clue-matrix .all-clue-card .clue-cell{font-size:16px}.clue-matrix .all-clue-card.is-selected{padding:3px 0}.clue-matrix .all-clue-card .no-clue{height:58px;min-height:58px;font-size:8px}.house-heading{margin-bottom:0}.board-area{max-width:288px}.board-roof{height:25px}.house-label{font-size:10px;margin-top:5px}.player-content{gap:8px}.number-instruction{font-size:12px}.number-instruction span{font-size:10px}.arena-view.single-mode .play-stage{grid-template-columns:minmax(310px,1fr) minmax(290px,1fr);gap:35px}.arena-view.single-mode .always-clues{max-width:395px}.arena-view.single-mode .board-area{max-width:290px}.arena-view.single-mode .all-clue-card{min-height:93px;padding:4px}.arena-view.single-mode .all-clue-card h3{font-size:11px}.arena-view.single-mode .all-clue-card h3 b{font-size:17px}.arena-view.single-mode .all-clue-card .clue-grid{width:72px}.arena-view.single-mode .all-clue-card .clue-cell{font-size:19px}.arena-view.single-mode .all-clue-card .no-clue{height:72px;min-height:72px;font-size:9px}.arena-view.single-mode .clue-matrix{gap:6px}.arena-view.single-mode .clues-section-heading{font-size:14px}}
@media(max-width:1350px) and (min-width:1101px){.play-stage{grid-template-columns:minmax(200px,.98fr) minmax(220px,1fr);gap:8px}.clue-matrix .all-clue-card .clue-grid{width:54px}.clue-matrix .all-clue-card{min-height:76px}.clue-matrix .all-clue-card .no-clue{min-height:54px;height:54px}.clues-section-heading>span{display:none}}
@media(max-width:1100px){.play-stage{grid-template-columns:minmax(240px,.96fr) minmax(240px,1fr);gap:20px}.clue-matrix .all-clue-card .clue-grid{width:68px}.clue-matrix .all-clue-card{min-height:95px}.clue-matrix .all-clue-card .no-clue{min-height:68px;height:68px;font-size:9px}.clue-matrix .all-clue-card h3{font-size:11px}.clue-matrix .all-clue-card h3 b{font-size:17px}.player-panel{min-height:610px}.arena-view.single-mode{grid-template-columns:1fr;max-width:none}.arena-view.single-mode .teacher-rail{grid-column:1;grid-row:1}.arena-view.single-mode .play-stage{grid-template-columns:minmax(240px,1fr) minmax(240px,1fr);gap:20px}.arena-view.single-mode .board-area{max-width:350px}.arena-view.single-mode .all-clue-card{min-height:104px;padding:6px}.arena-view.single-mode .all-clue-card .clue-grid{width:76px}.arena-view.single-mode .all-clue-card .no-clue{min-height:76px;height:76px;font-size:9px}.arena-view.single-mode .clue-matrix{gap:7px}}
@media(max-width:600px){.play-mode-options{margin-top:16px;gap:8px}.play-mode-option{padding:9px 10px;grid-template-columns:25px 1fr;column-gap:7px;min-height:65px}.play-mode-option>strong{font-size:16px}.play-mode-option>small{font-size:9px}.play-mode-option>span{font-size:22px}.play-stage,.arena-view.single-mode .play-stage{grid-template-columns:1fr;gap:14px}.always-clues,.arena-view.single-mode .always-clues{max-width:390px;margin:auto}.clue-matrix{gap:6px}.clue-matrix .all-clue-card{padding:6px 3px;min-height:101px}.clue-matrix .all-clue-card h3{font-size:11px}.clue-matrix .all-clue-card h3 b{font-size:18px}.clue-matrix .all-clue-card .clue-grid{width:72px}.clue-matrix .all-clue-card .clue-cell{font-size:20px}.clue-matrix .all-clue-card .no-clue{min-height:72px;height:72px;font-size:9px}.board-area,.arena-view.single-mode .board-area{max-width:320px}.player-panel{min-height:0}.player-content{gap:15px;padding:15px 14px}.clues-section-heading{font-size:14px}.clues-section-heading>span{font-size:10px}.house-heading{margin-bottom:3px}.arena-view.single-mode .all-clue-card{min-height:101px}.arena-view.single-mode .all-clue-card h3{font-size:11px}.arena-view.single-mode .all-clue-card h3 b{font-size:18px}.arena-view.single-mode .all-clue-card .clue-grid{width:72px}.arena-view.single-mode .all-clue-card .no-clue{min-height:72px;height:72px}.arena-view.single-mode .number-choice{font-size:30px}.setup-view.single-mode .start-button{min-width:0}.panel-pause{inset:77px 0 0}}
/* Large-screen practice: reserve a clear row for the draggable number tray. */
@media(min-width:1600px){
 .arena-view.single-mode .all-clue-card{min-height:130px;padding:9px}
 .arena-view.single-mode .all-clue-card .clue-grid{width:94px}
 .arena-view.single-mode .all-clue-card .clue-cell{font-size:26px}
 .arena-view.single-mode .all-clue-card .no-clue{height:94px;min-height:94px;font-size:11px}
 .arena-view.single-mode .board-area{max-width:420px}
}