:root{
  --navy:#071a33;--blue:#0b5fae;--blue-2:#1372c4;--red:#bd2b22;--gold:#d38a22;
  --mint:#e6f5f2;--ice:#edf5fb;--paper:#fbfcfe;--ink:#172033;--muted:#667085;
  --line:#d7e1ec;--white:#fff;--success:#15805d;--shadow:0 18px 48px rgba(7,26,51,.12);
  --radius:20px;font-family:Pretendard,"Noto Sans KR","Apple SD Gothic Neo",sans-serif;
}
*{box-sizing:border-box}html{min-width:320px;min-height:100%;overflow-x:auto;overflow-y:auto;-webkit-overflow-scrolling:touch;background:var(--paper);color:var(--ink)}
body{margin:0;min-width:320px;min-height:100vh;min-height:100dvh;overflow-x:auto;overflow-y:visible;background:linear-gradient(90deg,rgba(11,95,174,.035) 1px,transparent 1px),linear-gradient(rgba(11,95,174,.035) 1px,transparent 1px),var(--paper);background-size:32px 32px}
button,input,textarea,select{font:inherit}button{touch-action:manipulation}
button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid rgba(19,114,196,.28);outline-offset:2px}
[hidden]{display:none!important}
.entry-gate{position:fixed;inset:0;z-index:20;display:grid;place-items:center;min-height:100vh;min-height:100dvh;overflow:auto;-webkit-overflow-scrolling:touch;overscroll-behavior:contain;touch-action:pan-x pan-y pinch-zoom;padding:max(24px,env(safe-area-inset-top)) max(24px,env(safe-area-inset-right)) max(24px,env(safe-area-inset-bottom)) max(24px,env(safe-area-inset-left));background:radial-gradient(circle at 83% 16%,rgba(211,138,34,.26),transparent 24%),linear-gradient(135deg,#061426,#0b315a 64%,#0b5fae)}
.entry-gate::before{content:"x → f → y";position:absolute;right:5vw;bottom:1vh;color:rgba(255,255,255,.07);font-size:clamp(64px,13vw,180px);font-weight:900;letter-spacing:-.08em}
.entry-card{position:relative;width:min(720px,100%);padding:clamp(28px,5vw,58px);border-radius:28px;background:rgba(255,255,255,.97);box-shadow:0 30px 90px rgba(0,0,0,.32)}
.eyebrow{margin:0 0 12px;color:var(--blue);font-size:.78rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase}
.entry-card h1{margin:0;font-size:clamp(2.35rem,6vw,4.9rem);line-height:.98;letter-spacing:-.065em}
.entry-lead{max-width:590px;margin:24px 0 30px;color:#475467;font-size:1.08rem;line-height:1.75}
.entry-form{display:grid;grid-template-columns:1fr 1fr;gap:16px}.entry-form label:not(.consent-row){display:grid;gap:8px}
.entry-form label>span:first-child{font-size:.82rem;font-weight:800}.entry-form input:not([type=checkbox]){width:100%;height:48px;border:1px solid var(--line);border-radius:12px;padding:0 14px;background:#fff}
.consent-row{grid-column:1/-1;display:grid;grid-template-columns:22px 1fr;gap:10px;align-items:start;margin-top:4px;line-height:1.55}.consent-row input{width:20px;height:20px;margin:2px 0 0;accent-color:var(--blue)}
.privacy-note,.form-error{grid-column:1/-1;margin:0;font-size:.78rem;line-height:1.6}.privacy-note{color:var(--muted)}.form-error{min-height:1.2em;color:var(--red);font-weight:700}
.primary-action{grid-column:1/-1;min-height:52px;border:0;border-radius:14px;background:var(--navy);color:#fff;font-weight:850;cursor:pointer}.primary-action:hover{background:var(--blue)}
.lab-app{min-height:100vh}.topbar{position:sticky;top:0;z-index:10;height:76px;display:flex;align-items:center;justify-content:space-between;padding:0 28px;border-bottom:1px solid rgba(255,255,255,.14);background:rgba(7,26,51,.97);color:#fff;backdrop-filter:blur(14px)}
.brand-block{display:flex;align-items:center;gap:12px}.brand-mark{width:42px;height:42px;display:grid;place-items:center;border-radius:50% 12px 50% 50%;background:var(--gold);color:var(--navy);font-size:1.15rem;font-weight:950}
.brand-block div{display:grid;gap:2px}.brand-block strong{font-size:.9rem;letter-spacing:.08em}.brand-block div span{color:#b9cae0;font-size:.7rem}.topbar-status{display:flex;align-items:center;justify-content:flex-end;flex-wrap:wrap;gap:8px}
.status-chip{padding:7px 11px;border-radius:999px;font-size:.7rem;font-weight:800;white-space:nowrap}.status-pending{background:#243a58;color:#dce7f4}.status-online{background:#dff6ec;color:#07543b}.status-local,.status-queued{background:#fff2d8;color:#85500c}.status-synced{background:#dff6ec;color:#07543b}
.text-button{border:1px solid #526780;border-radius:10px;padding:8px 11px;background:transparent;color:#fff;font-size:.76rem;cursor:pointer}
.workspace{min-height:calc(100vh - 76px);display:grid;grid-template-columns:270px minmax(0,1fr)}.module-rail{position:sticky;top:76px;height:calc(100vh - 76px);display:flex;flex-direction:column;padding:28px 18px 22px;border-right:1px solid var(--line);background:rgba(255,255,255,.92)}
.rail-title{margin:0 10px 18px;color:var(--muted);font-size:.72rem;font-weight:850;letter-spacing:.08em}.module-rail nav{display:grid;gap:6px;overflow:auto;padding-right:2px}
.module-nav-button{position:relative;width:100%;display:grid;grid-template-columns:34px 1fr;gap:10px;align-items:center;border:0;border-radius:13px;padding:10px;background:transparent;color:var(--muted);text-align:left;cursor:pointer}.module-nav-button:hover{background:var(--ice);color:var(--ink)}.module-nav-button.active{background:var(--navy);color:#fff}.module-nav-button.done:not(.active){color:var(--success)}
.module-letter{width:34px;height:34px;display:grid;place-items:center;border:1px solid currentColor;border-radius:11px;font-size:.72rem;font-weight:900}.module-nav-copy{display:grid;gap:2px}.module-nav-copy strong{font-size:.8rem}.module-nav-copy small{font-size:.64rem;opacity:.72}
.progress-summary{margin-top:auto;padding:16px 10px 0;border-top:1px solid var(--line);display:grid;grid-template-columns:1fr auto;gap:7px;font-size:.72rem}.progress-summary span{color:var(--muted)}.progress-track{grid-column:1/-1;height:6px;overflow:hidden;border-radius:999px;background:#e4eaf1}.progress-track span{display:block;width:0;height:100%;background:var(--success);transition:width .25s}
.lab-main{width:min(1180px,100%);margin:0 auto;padding:42px clamp(24px,5vw,68px) 30px}.module-header{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:end;padding-bottom:24px;border-bottom:2px solid var(--navy)}
.module-header h2{margin:0;font-size:clamp(2rem,4.5vw,4rem);line-height:1.04;letter-spacing:-.055em}.module-question{margin:15px 0 0;color:#475467;font-size:1.04rem;line-height:1.65}
.npu-action{min-height:44px;border:1px solid var(--blue);border-radius:13px;padding:0 16px;background:#fff;color:var(--blue);font-weight:850;cursor:pointer}.npu-action:hover{background:var(--ice)}
.module-content{min-height:440px;padding:34px 0}.lab-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.lab-panel{padding:26px;border:1px solid var(--line);border-radius:var(--radius);background:rgba(255,255,255,.88)}.lab-panel h3{margin:0 0 12px;font-size:1.28rem;color:var(--blue)}.lab-panel p{line-height:1.7}.panel-kicker{margin:0 0 9px!important;color:var(--red);font-size:.72rem;font-weight:900;letter-spacing:.08em}
.challenge-sevens{display:flex;gap:18px;margin:24px 0 20px}.seven-card{width:94px;height:126px;display:grid;place-items:center;border:1px solid var(--line);border-radius:18px;background:#fff;color:var(--blue);font-size:4.6rem;font-weight:900}.seven-card:nth-child(2){color:var(--red);font-style:italic;transform:rotate(-2deg)}.seven-card:nth-child(3){font-weight:500;text-decoration:underline;text-decoration-thickness:5px}
.field-stack{display:grid;gap:9px;margin-top:18px}.field-stack label,.inline-label{font-size:.8rem;font-weight:800}.field-stack textarea,.field-stack input,.field-stack select,.answer-input{width:100%;border:1px solid var(--line);border-radius:12px;background:#fff;padding:12px 13px;color:var(--ink)}.field-stack textarea{min-height:98px;resize:vertical}
.choice-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.choice-button{min-height:42px;border:1px solid var(--line);border-radius:12px;padding:9px 14px;background:#fff;color:var(--ink);font-weight:750;cursor:pointer}.choice-button:hover{border-color:var(--blue);color:var(--blue)}.choice-button.correct{border-color:var(--success);background:#e9f8f2;color:#0d684b}.choice-button.wrong{border-color:var(--red);background:#fff0ef;color:var(--red)}
.choice-button.active{border-color:var(--blue);background:var(--navy);color:#fff}.choice-row.compact{margin-top:9px}
.xfy-flow{display:grid;grid-template-columns:1fr 80px 1.2fr 80px 1fr;align-items:center;gap:10px;margin:26px 0}.xfy-node{min-height:150px;display:grid;place-items:center;align-content:center;gap:8px;border:2px solid var(--blue);border-radius:50%;background:#fff;text-align:center}.xfy-node strong{font-size:2.3rem;color:var(--blue)}.xfy-node.output{border-color:var(--red)}.xfy-node.output strong{color:var(--red)}.flow-arrow{text-align:center;color:var(--red);font-size:3rem;font-weight:900}
.split-scenarios{display:grid;gap:10px;margin-top:16px}.scenario-button{border:1px solid var(--line);border-radius:13px;padding:13px 15px;background:#fff;text-align:left;cursor:pointer;line-height:1.45}.scenario-button:hover{border-color:var(--blue)}
.pixel-workbench{display:grid;grid-template-columns:auto minmax(260px,1fr);gap:28px;align-items:start}.pixel-grid{display:grid;grid-template-columns:repeat(6,44px);gap:3px;padding:8px;border-radius:14px;background:#dce7f1}.pixel-cell{width:44px;height:44px;border:0;border-radius:5px;background:#fff;color:transparent;cursor:pointer}.pixel-cell.on{background:var(--blue)}
.matrix-output{margin:12px 0 0;padding:15px;border-radius:13px;background:var(--navy);color:#dcecff;font:700 .82rem/1.65 ui-monospace,SFMono-Regular,Consolas,monospace;white-space:pre;overflow:auto}.rgb-controls{display:grid;gap:12px}.rgb-control{display:grid;grid-template-columns:24px 1fr 44px;gap:10px;align-items:center}.rgb-control strong{font-size:.8rem}.rgb-control output{text-align:right;font:700 .78rem ui-monospace,monospace}.rgb-swatch{height:120px;border-radius:20px;border:1px solid var(--line);box-shadow:inset 0 0 0 8px rgba(255,255,255,.55)}
.activity-lead{max-width:850px;margin:0 0 20px;color:var(--muted)}.transform-lab{overflow:hidden;background:linear-gradient(135deg,rgba(237,245,251,.85),rgba(255,255,255,.96) 58%)}.transform-preview{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;align-items:start}.tone-card{padding:14px;border:1px solid var(--line);border-radius:16px;background:#fff}.tone-card.result-card{border-color:#9fc4e4;box-shadow:0 10px 26px rgba(11,95,174,.09)}.tone-heading{display:flex;align-items:baseline;justify-content:space-between;gap:8px;margin-bottom:10px}.tone-heading strong{color:var(--navy)}.tone-heading span{color:var(--muted);font-size:.68rem}.tone-grid{display:grid;grid-template-columns:repeat(4,minmax(44px,1fr));gap:4px;padding:5px;border-radius:11px;background:#d9e3ec}.tone-cell{display:grid;place-items:center;aspect-ratio:1;border-radius:6px;font:800 clamp(.58rem,1.25vw,.76rem) ui-monospace,SFMono-Regular,Consolas,monospace}.tone-cell.concealed{background:repeating-linear-gradient(135deg,#e8eff5,#e8eff5 8px,#dce6ef 8px,#dce6ef 16px);color:var(--blue);font-size:1.25rem}.transform-control-block{margin-top:20px}.control-label{display:block;color:var(--navy);font-size:.78rem;font-weight:900}.formula-strip{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:14px;padding:12px 14px;border-left:4px solid var(--gold);border-radius:4px 12px 12px 4px;background:#fff8e9}.formula-strip strong{color:#8b570d}.formula-strip code{color:var(--ink);font:750 .86rem/1.55 ui-monospace,SFMono-Regular,Consolas,monospace}.transform-action{border-color:var(--blue);background:var(--blue);color:#fff}.transform-action:hover{background:var(--navy);color:#fff}.color-transform-lab{background:#fff}.color-transform-layout{display:grid;grid-template-columns:minmax(300px,1.35fr) minmax(240px,.65fr);gap:26px;align-items:start}.color-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:7px;padding:10px;border-radius:16px;background:var(--navy)}.color-cell{min-height:68px;border-radius:10px;box-shadow:inset 0 0 0 1px rgba(255,255,255,.24)}.channel-choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin-top:10px}.observation-note{margin:15px 0 0;padding:13px 14px;border-radius:12px;background:var(--ice);color:#38516a;font-size:.86rem;line-height:1.65}
.bitmap-pair{display:grid;grid-template-columns:1fr 80px 1fr;gap:18px;align-items:center}.bitmap{display:grid;grid-template-columns:repeat(5,42px);gap:3px;justify-content:center}.bit{width:42px;height:42px;border-radius:5px;background:#fff;border:1px solid var(--line)}.bit.on{background:var(--blue);border-color:var(--blue)}.bitmap-arrow{text-align:center;color:var(--red);font-size:2.7rem}
.math-row{display:flex;flex-wrap:wrap;align-items:center;gap:16px}.matrix-table{border-collapse:collapse;background:#fff}.matrix-table td{width:44px;height:44px;border:1px solid var(--line);text-align:center;font:800 .9rem ui-monospace,monospace}.matrix-table td.focus{background:#dcecff;color:var(--blue)}.matrix-table.kernel td{background:#fff0ef;color:var(--red)}.operator{font-size:2.4rem;font-weight:900;color:var(--red)}.answer-box{display:grid;gap:10px;min-width:170px}.answer-input{height:50px;text-align:center;font-size:1.2rem;font-weight:900}
.design-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.design-form .wide{grid-column:1/-1}.feedback-box{margin-top:18px;padding:17px 18px;border-left:5px solid var(--blue);border-radius:4px 14px 14px 4px;background:var(--ice);line-height:1.7}.feedback-box.success{border-color:var(--success);background:#eaf8f3}.feedback-box.error{border-color:var(--red);background:#fff0ef}.feedback-box.loading{color:var(--muted)}
.global-feedback{margin:0 0 24px;padding:20px;border:1px solid #b8d4ec;border-radius:16px;background:var(--ice);line-height:1.7}.module-footer{display:flex;justify-content:space-between;gap:12px;padding-top:20px;border-top:1px solid var(--line)}.secondary-action,.complete-action{min-height:44px;border-radius:12px;padding:0 16px;font-weight:800;cursor:pointer}.secondary-action{border:1px solid var(--line);background:#fff;color:var(--ink)}.complete-action{border:0;background:var(--success);color:#fff}
.reflection-grid{display:grid;grid-template-columns:3fr 2fr 1fr;gap:18px}.reflection-box{padding:22px;border-top:7px solid var(--blue);border-radius:0 0 17px 17px;background:#fff;box-shadow:0 8px 24px rgba(7,26,51,.07)}.reflection-box:nth-child(2){border-color:var(--gold)}.reflection-box:nth-child(3){border-color:var(--red)}.reflection-box strong{display:block;margin-bottom:12px;font-size:1.9rem}.reflection-box textarea{width:100%;min-height:150px;border:1px solid var(--line);border-radius:12px;padding:12px;resize:vertical}
@media (max-width:900px){.workspace{grid-template-columns:1fr}.module-rail{position:static;height:auto;padding:12px 16px;border-right:0;border-bottom:1px solid var(--line)}.rail-title,.progress-summary{display:none}.module-rail nav{display:flex;overflow-x:auto}.module-nav-button{min-width:160px}.lab-main{padding-top:26px}.module-header{grid-template-columns:1fr}.npu-action{justify-self:start}.transform-preview{grid-template-columns:repeat(2,minmax(0,1fr))}.tone-card.result-card{grid-column:1/-1}.color-transform-layout{grid-template-columns:1fr}}
@media (max-width:680px){.entry-gate{display:block;padding:max(16px,env(safe-area-inset-top)) max(16px,env(safe-area-inset-right)) max(16px,env(safe-area-inset-bottom)) max(16px,env(safe-area-inset-left))}.entry-card{margin:0 auto;padding:clamp(24px,7vw,36px)}.entry-form,.lab-grid,.design-form,.reflection-grid{grid-template-columns:1fr}.entry-form>*{grid-column:1}.topbar{height:auto;min-height:72px;flex-wrap:wrap;gap:9px;padding:12px 16px}.brand-block div span{display:none}.topbar-status{width:100%;justify-content:flex-start;gap:6px}.status-chip,.text-button{font-size:.66rem;padding:7px 9px}.workspace{min-height:calc(100vh - 72px);min-height:calc(100dvh - 72px)}.lab-main{padding:24px 16px}.xfy-flow{grid-template-columns:1fr;justify-items:center}.flow-arrow{transform:rotate(90deg)}.pixel-workbench{grid-template-columns:1fr}.pixel-grid{grid-template-columns:repeat(6,minmax(34px,1fr))}.pixel-cell{width:100%;height:auto;aspect-ratio:1}.bitmap-pair{grid-template-columns:1fr}.bitmap-arrow{transform:rotate(90deg)}.reflection-box{grid-column:1}.module-footer{flex-wrap:wrap}.transform-preview{grid-template-columns:1fr}.tone-card.result-card{grid-column:auto}.tone-grid{grid-template-columns:repeat(4,minmax(40px,1fr))}.channel-choices{grid-template-columns:repeat(2,1fr)}.color-cell{min-height:52px}}
@media (max-height:760px) and (min-width:681px){.entry-gate{place-items:start center}.entry-card{margin:0 auto}}
.image-experiment-shell{overflow:hidden;padding:0;background:#fff}.image-experiment-shell>h3,.image-experiment-shell>.panel-kicker,.image-experiment-shell>.activity-lead{margin-left:28px;margin-right:28px}.image-experiment-shell>.panel-kicker{margin-top:28px!important}.experiment-route{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#f5f8fb}.experiment-route>p{margin:0;padding:11px 26px;color:var(--muted);font-size:.78rem}.experiment-tabs{display:flex;gap:7px;overflow-x:auto;padding:14px 18px 8px;scrollbar-width:thin}.experiment-tab{position:relative;min-width:118px;min-height:58px;display:grid;grid-template-columns:25px 1fr 14px;gap:7px;align-items:center;border:1px solid var(--line);border-radius:13px;padding:8px 9px;background:#fff;color:#475467;text-align:left;font-size:.76rem;font-weight:850;cursor:pointer}.experiment-tab:hover{border-color:var(--blue);color:var(--blue)}.experiment-tab.active{border-color:var(--navy);background:var(--navy);color:#fff}.experiment-tab.completed:not(.active){border-color:#8bcbb5;color:var(--success)}.experiment-tab-number{width:25px;height:25px;display:grid;place-items:center;border-radius:8px;background:var(--ice);color:var(--blue);font-size:.68rem}.experiment-tab.active .experiment-tab-number{background:rgba(255,255,255,.16);color:#fff}.experiment-tab-check{opacity:0}.experiment-tab.completed .experiment-tab-check{opacity:1;color:var(--success)}.experiment-tab.active .experiment-tab-check{color:#fff}.image-experiment-stage{padding:26px 28px 30px}.experiment-brief{display:grid;grid-template-columns:minmax(190px,.65fr) minmax(280px,1.35fr);gap:24px;align-items:center;margin-bottom:20px;padding:18px 20px;border-radius:16px;background:linear-gradient(120deg,var(--navy),#0b477c);color:#fff}.experiment-brief h4{margin:5px 0 0;font-size:1.35rem}.experiment-brief p{margin:0;color:#dce9f6;line-height:1.65}.experiment-math{color:#8ed9d0;font:800 .72rem ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.04em}.image-toolbar{display:flex;flex-wrap:wrap;gap:9px;align-items:center;margin-bottom:18px}.privacy-inline{margin-left:auto;color:var(--muted);font-size:.7rem}.image-canvas-grid{display:grid;gap:16px;align-items:start}.image-canvas-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.image-canvas-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.image-canvas-grid.four{grid-template-columns:repeat(2,minmax(0,1fr))}.image-canvas-card{overflow:hidden;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:0 8px 24px rgba(7,26,51,.06)}.image-canvas-card.clickable{border-color:#79b2df}.canvas-card-heading{display:flex;justify-content:space-between;gap:10px;align-items:baseline;padding:11px 13px;border-bottom:1px solid var(--line)}.canvas-card-heading strong{color:var(--navy);font-size:.85rem}.canvas-card-heading span{color:var(--muted);font-size:.66rem}.image-canvas{display:block;width:100%;height:auto;max-height:280px;object-fit:contain;background:repeating-conic-gradient(#edf1f5 0 25%,#fff 0 50%) 50%/18px 18px}.clickable .image-canvas{cursor:crosshair}.image-range{display:grid;grid-template-columns:130px minmax(180px,1fr) 62px;gap:12px;align-items:center;margin:15px 0;padding:13px 15px;border:1px solid var(--line);border-radius:14px;background:#fff}.image-range>span{font-size:.8rem;font-weight:850}.image-range input{width:100%;accent-color:var(--blue)}.image-range output{text-align:right;color:var(--blue);font:850 .82rem ui-monospace,SFMono-Regular,Consolas,monospace}.dual-range,.triple-range{display:grid;gap:12px}.dual-range{grid-template-columns:repeat(2,minmax(0,1fr))}.triple-range{grid-template-columns:repeat(3,minmax(0,1fr))}.dual-range .image-range,.triple-range .image-range{grid-template-columns:1fr;gap:7px;margin:0}.dual-range .image-range output,.triple-range .image-range output{text-align:left}.experiment-record{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:18px}.experiment-record #imageLabStatus{color:var(--muted);font-size:.8rem}.experiment-record #imageLabStatus.success{color:var(--success);font-weight:800}.experiment-record #imageLabStatus.error{color:var(--red);font-weight:800}.rgb-builder-layout{display:grid;grid-template-columns:minmax(310px,1.2fr) minmax(240px,.8fr);gap:24px;align-items:start}.rgb-build-grid{display:grid;grid-template-columns:repeat(4,minmax(64px,1fr));gap:6px;padding:9px;border-radius:16px;background:var(--navy)}.rgb-build-cell{position:relative;aspect-ratio:1;border:0;border-radius:9px;cursor:pointer;box-shadow:inset 0 0 0 1px rgba(255,255,255,.2)}.rgb-build-cell.selected{outline:4px solid var(--gold);outline-offset:2px}.rgb-build-cell span{position:absolute;right:5px;bottom:4px;padding:2px 4px;border-radius:5px;background:rgba(7,26,51,.62);color:#fff;font-size:.6rem}.rgb-vector-editor{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;padding:18px;border:1px solid var(--line);border-radius:16px;background:var(--ice)}.rgb-vector-editor>div:first-child,.rgb-build-swatch{grid-column:1/-1}.rgb-vector-editor label{display:grid;gap:6px}.rgb-vector-editor label span{font-size:.75rem;font-weight:900}.rgb-vector-editor input{width:100%;height:45px;border:1px solid var(--line);border-radius:10px;padding:0 10px;font-weight:800}.rgb-build-swatch{min-height:100px;border:8px solid rgba(255,255,255,.72);border-radius:16px;box-shadow:0 0 0 1px var(--line)}.rgb-matrix-readout{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:20px}.rgb-matrix-readout>section{min-width:0}.rgb-matrix-readout>section>strong{display:block;margin-bottom:7px;color:var(--navy);font-size:.76rem}.mini-matrix-wrap{overflow:auto}.mini-matrix{width:100%;border-collapse:collapse;background:#fff}.mini-matrix td{min-width:36px;height:36px;border:1px solid var(--line);text-align:center;font:750 .67rem ui-monospace,SFMono-Regular,Consolas,monospace}.mini-matrix td.center{background:#fff0cc;color:#7b4c00;box-shadow:inset 0 0 0 2px var(--gold)}.pixel-inspector{margin-top:18px;padding:18px;border:1px solid var(--line);border-radius:16px;background:var(--ice)}.pixel-inspector-heading{display:flex;align-items:center;justify-content:space-between;gap:16px}.pixel-inspector-heading>div{display:grid;gap:4px}.pixel-swatch{width:54px;height:54px;border:5px solid #fff;border-radius:13px;box-shadow:0 0 0 1px var(--line)}
@media (max-width:900px){.experiment-brief{grid-template-columns:1fr}.image-canvas-grid.three{grid-template-columns:1fr}.dual-range,.triple-range{grid-template-columns:1fr}.rgb-builder-layout{grid-template-columns:1fr}.privacy-inline{width:100%;margin-left:0}.transpose-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important}}
@media (max-width:680px){.image-experiment-shell>h3,.image-experiment-shell>.panel-kicker,.image-experiment-shell>.activity-lead{margin-left:18px;margin-right:18px}.image-experiment-stage{padding:18px}.experiment-route>p{padding:10px 18px}.experiment-tab{min-width:108px}.image-canvas-grid.two,.image-canvas-grid.four,.transpose-grid{grid-template-columns:1fr!important}.image-range{grid-template-columns:1fr;gap:7px}.image-range output{text-align:left}.rgb-build-grid{grid-template-columns:repeat(4,minmax(48px,1fr))}.rgb-matrix-readout{grid-template-columns:1fr}.rgb-vector-editor{grid-template-columns:1fr}.rgb-vector-editor>div:first-child,.rgb-build-swatch{grid-column:1}.experiment-brief{padding:16px}.pixel-inspector-heading{align-items:flex-start}.mini-matrix td{min-width:33px;height:33px}}
.image-canvas-card{position:relative}.image-canvas.pixel-probe-enabled{cursor:crosshair}.canvas-pixel-readout{display:grid;grid-template-columns:minmax(190px,.75fr) minmax(340px,1.25fr) 58px;gap:18px;align-items:center;margin-top:18px;padding:16px 18px;border:1px solid #9fc4e4;border-radius:16px;background:linear-gradient(120deg,#edf6fd,#fff)}.canvas-pixel-readout>div:first-child{display:grid;gap:5px}.pixel-probe-values{display:flex;flex-wrap:wrap;gap:7px}.pixel-probe-values span{padding:6px 9px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--navy);font:800 .74rem ui-monospace,SFMono-Regular,Consolas,monospace}.pixel-probe-swatch{width:58px;height:58px;border:6px solid #fff;border-radius:14px;background:repeating-conic-gradient(#dce6ef 0 25%,#fff 0 50%) 50%/12px 12px;box-shadow:0 0 0 1px var(--line)}.canvas-pixel-marker{position:absolute;z-index:3;width:15px;height:15px;border:3px solid #fff;border-radius:50%;background:var(--red);box-shadow:0 0 0 2px rgba(7,26,51,.76);transform:translate(-50%,-50%);pointer-events:none}
.image-experiment-shell>.panel-kicker{margin:28px 28px 9px!important}
@media (max-width:680px){.image-experiment-shell>.panel-kicker{margin:18px 18px 9px!important}.canvas-pixel-readout{grid-template-columns:1fr 58px}.pixel-probe-values{grid-column:1/-1;grid-row:2}.pixel-probe-swatch{grid-column:2;grid-row:1}}
.quickdraw-launch{display:grid;grid-template-columns:108px minmax(0,1fr) auto;gap:24px;align-items:center;margin-bottom:24px;padding:24px;border-radius:22px;background:linear-gradient(125deg,#071a33 0%,#0b477c 65%,#0b5fae 100%);color:#fff;box-shadow:var(--shadow)}.quickdraw-timer{width:108px;height:108px;display:grid;place-items:center;align-content:center;border:2px solid rgba(255,255,255,.44);border-radius:50%;background:rgba(255,255,255,.08)}.quickdraw-timer strong{font-size:2.5rem;line-height:1}.quickdraw-timer span{margin-top:5px;color:#b9d8ed;font-size:.7rem;font-weight:800}.quickdraw-copy .panel-kicker{color:#ffd777}.quickdraw-copy h3{margin:0 0 8px;font-size:1.35rem}.quickdraw-copy p{margin:0;color:#dbe9f5;line-height:1.65}.quickdraw-prompts{display:flex;flex-wrap:wrap;gap:7px;margin-top:13px}.quickdraw-prompts span{padding:6px 9px;border-radius:999px;background:rgba(255,255,255,.1);color:#eef6fc;font-size:.68rem;font-weight:750}.quickdraw-action{min-height:52px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:14px;padding:0 18px;background:#ffd777;color:#071a33;font-weight:900;text-decoration:none;white-space:nowrap}.quickdraw-action:hover{background:#fff0b5;transform:translateY(-1px)}
@media (max-width:900px){.quickdraw-launch{grid-template-columns:84px 1fr}.quickdraw-timer{width:84px;height:84px}.quickdraw-action{grid-column:1/-1}}
@media (max-width:680px){.quickdraw-launch{grid-template-columns:1fr;padding:20px}.quickdraw-timer{width:72px;height:72px}.quickdraw-timer strong{font-size:2rem}.quickdraw-action{grid-column:1}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* Mobile two-axis scrolling: keep page and wide experiment strips draggable in both directions. */
.workspace,.lab-main,.module-content,.lab-panel,.image-experiment-shell,.image-experiment-stage{min-width:0}
.module-rail nav,.experiment-tabs,.mini-matrix-wrap,.matrix-output,.image-toolbar,.image-canvas-card{
  -webkit-overflow-scrolling:touch;
  touch-action:pan-x pan-y pinch-zoom;
}
.module-rail nav,.experiment-tabs,.mini-matrix-wrap,.matrix-output{overflow-x:auto;overscroll-behavior-x:contain}
.experiment-tabs{overflow-y:hidden;padding-bottom:12px}
@media (max-width:900px){.module-rail{min-width:0;width:100%;max-width:100vw}.module-rail nav{width:100%;max-width:100%;min-width:0;overflow-x:auto;overflow-y:hidden;padding-bottom:6px;overscroll-behavior-x:contain}.module-nav-button{flex:0 0 160px}}