:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--mini-ink:#16352f;--mini-muted:#62736d;--mini-line:#dce5df;--mini-line-strong:#adc2b5;--mini-green:#176b52;--mini-green-strong:#11553f;--mini-bg:#f4f6f0;--mini-paper:var(--surface);--mini-accent:#e6efc9;--mini-hover:#eef3e9;--mini-focus:var(--amber);--mini-warm-surface:#f5eee1;--mini-warm-shade:#ece4d3;--mini-card-glaze:#fff9;--mini-shadow-light:#16352f04;--mini-overlay:#102b2566;--mini-shadow:#0c221b3b;--font-sans:Pretendard, "Pretendard Variable", "Noto Sans KR", "Noto Sans CJK KR", -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Apple SD Gothic Neo", ui-sans-serif, system-ui, "Segoe UI", Roboto, sans-serif;--font-mono:ui-monospace, SFMono-Regular, "SF Mono", "JetBrains Mono", Menlo, Consolas, "Noto Sans Mono CJK KR", monospace;font-family:var(--font-sans);--bg:#f2f4f7;--surface:#fff;--surface-2:#f6f8fb;--surface-3:#eef1f6;--on-accent:#fff;--ink:#101828;--ink-2:#39435a;--muted:#5d6880;--ink-quaternary:#8a94a6;--line:#e3e6ec;--line-strong:#c8cdd8;--blue:#2f65d8;--blue-strong:#143b88;--blue-soft:#eaf1ff;--blue-press:#2454bb;--nav:#15181d;--nav-2:#20242b;--nav-3:#2b313a;--nav-label:#eef1f6;--nav-label-2:#a8b1bf;--nav-separator:#ffffff14;--mint:#0b7a70;--mint-soft:#e3f5f2;--red:#c8372a;--red-soft:#ffefed;--amber:#99640a;--amber-soft:#fff4de;--green:#2f7a3f;--green-soft:#ecf7e8;--blue-line:#c2d5f6;--mint-line:#b9e3dd;--red-line:#f2ccc6;--amber-line:#ecd9a8;--green-line:#c9e3bd;--code-surface:#142d43;--code-ink:#d7e3f2;--code-gutter-ink:#9fb2c6;--system-blue:var(--blue);--system-blue-ink:var(--blue);--system-blue-soft:var(--blue-soft);--system-blue-line:var(--blue-line);--system-blue-tint:var(--blue-soft);--system-green:var(--green);--system-green-ink:var(--green);--system-green-soft:var(--green-soft);--system-green-line:var(--green-line);--system-green-tint:var(--green-soft);--system-red:var(--red);--system-red-ink:var(--red);--system-red-soft:var(--red-soft);--system-red-line:var(--red-line);--system-red-tint:var(--red-soft);--system-amber:var(--amber);--system-amber-ink:var(--amber);--system-amber-soft:var(--amber-soft);--system-amber-line:var(--amber-line);--system-amber-tint:var(--amber-soft);--system-mint:var(--mint);--system-mint-ink:var(--mint);--system-mint-soft:var(--mint-soft);--system-mint-line:var(--mint-line);--system-mint-tint:var(--mint-soft);--label-primary:var(--ink);--label-secondary:var(--ink-2);--label-tertiary:var(--muted);--label-quaternary:var(--ink-quaternary);--fill-primary:var(--surface);--fill-secondary:var(--surface-2);--fill-tertiary:var(--surface-3);--separator:#10182817;--separator-opaque:var(--line);--ink-rgb:16 24 40;--blue-rgb:47 101 216;--red-rgb:200 55 42;--white-rgb:255 255 255;--sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:20px;--sp-6:24px;--sp-7:32px;--sp-8:40px;--r-xs:6px;--r-sm:10px;--r-md:14px;--r-lg:18px;--r-pill:999px;--radius:var(--r-md);--shadow-1:0 1px 2px #1018280d, 0 0 0 .5px #1018280a;--shadow-2:0 1px 3px #1018280f, 0 8px 24px #10182812;--shadow-3:0 12px 28px #1018281f, 0 32px 64px #10182829;--shadow:var(--shadow-2);--fs-large-title:28px;--fs-title:22px;--fs-h2:17px;--fs-body:15px;--fs-control:var(--fs-body);--fs-sub:13px;--fs-cap:12px;--fw-regular:400;--fw-medium:500;--fw-semibold:600;--fw-bold:700;--lh-title:1.2;--lh-heading:1.3;--lh-body:1.5;--lh-sub:1.45;--tracking-title:-.015em;--tracking-heading:-.01em;--tracking-body:0;--control-h:44px;--control-h-sm:34px;--control-h-lg:52px;--ease-out:cubic-bezier(.32, .72, 0, 1);--dur-fast:.12s;--dur-base:.18s;--dur-slow:.26s;--focus-ring:0 0 0 3px #2f65d8cc;--focus-ring-color:var(--blue);--safe-top:env(safe-area-inset-top,0px);--safe-right:env(safe-area-inset-right,0px);--safe-bottom:env(safe-area-inset-bottom,0px);--safe-left:env(safe-area-inset-left,0px)}@media (pointer:coarse){:root{--fs-control:16px}}@media (prefers-reduced-motion:reduce){:root{--dur-fast:.01ms;--dur-base:.01ms;--dur-slow:.01ms}}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:var(--font-sans);font-size:var(--fs-body);font-synthesis-weight:none;font-optical-sizing:auto;font-feature-settings:"kern" 1, "liga" 1, "calt" 1;letter-spacing:var(--tracking-body);line-height:var(--lh-body);text-rendering:optimizelegibility}h1,h2,h3,h4{letter-spacing:var(--tracking-heading);line-height:var(--lh-heading);word-break:keep-all}h1{letter-spacing:var(--tracking-title);line-height:var(--lh-title)}::selection{background:rgb(var(--blue-rgb) / 18%)}:where(a,button,input,select,textarea,summary,[tabindex]):focus-visible{outline:2px solid var(--focus-ring-color);outline-offset:2px}.btn{appearance:none;background:var(--fill-secondary);border:1px solid var(--separator-opaque);border-radius:var(--r-sm);color:var(--label-primary);cursor:pointer;font-family:inherit;font-size:var(--fs-body);font-weight:var(--fw-semibold);align-items:center;gap:var(--sp-2);letter-spacing:var(--tracking-heading);min-height:var(--control-h);padding:0 var(--sp-4);transition:background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast) var(--ease-out);white-space:nowrap;justify-content:center;line-height:1.2;text-decoration:none;display:inline-flex}.btn:hover:not(:disabled):not([aria-disabled=true]){background:var(--fill-tertiary)}.btn:active:not(:disabled):not([aria-disabled=true]){opacity:.82;transform:scale(.975)}.btn:disabled,.btn[aria-disabled=true]{cursor:default;opacity:.45;transform:none}.btn-filled{background:var(--blue);color:var(--on-accent);border-color:#0000}.btn-filled:hover:not(:disabled):not([aria-disabled=true]){background:var(--blue-press)}.btn-tinted{background:var(--blue-soft);color:var(--blue-strong);border-color:#0000}.btn-tinted:hover:not(:disabled):not([aria-disabled=true]){background:rgb(var(--blue-rgb) / 14%)}.btn-plain{color:var(--blue);padding:0 var(--sp-2);background:0 0;border-color:#0000}.btn-plain:hover:not(:disabled):not([aria-disabled=true]){background:rgb(var(--blue-rgb) / 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strong{color:var(--nav-label);font-size:var(--fs-sub);font-weight:var(--fw-semibold)}.aimata-nav{gap:2px;display:grid}.aimata-nav button{border-radius:var(--r-sm);color:var(--nav-label-2);cursor:pointer;font-size:var(--fs-body);font-weight:var(--fw-medium);align-items:center;gap:var(--sp-3);letter-spacing:var(--tracking-heading);min-height:44px;padding:var(--sp-2) var(--sp-3);text-align:left;transition:background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);background:0 0;border:0;display:flex}.aimata-nav button:hover{background:rgb(var(--white-rgb) / 7%);color:var(--nav-label)}.aimata-nav button[data-active=true]{background:rgb(var(--blue-rgb) / 26%);color:var(--nav-label);font-weight:var(--fw-semibold)}.aimata-nav button:active{transform:scale(.985)}.nav-badge{background:var(--amber);border-radius:var(--r-pill);color:var(--on-accent);font-size:11px;font-style:normal;font-weight:var(--fw-bold);text-align:center;min-width:18px;margin-left:auto;padding:4px 6px;line-height:1}.aimata-shell[data-sidebar-collapsed=true] .nav-badge{margin-left:0;padding:2px 5px}.sidebar-footer{background:rgb(var(--white-rgb) / 7%);border-radius:var(--r-sm);color:var(--nav-label);min-height:44px;padding:var(--sp-2) var(--sp-3);gap:2px;margin-top:auto;display:grid}.sidebar-footer span{color:var(--nav-label-2);font-size:var(--fs-cap)}.sidebar-footer strong{font-size:var(--fs-sub);font-weight:var(--fw-semibold)}.sidebar-footer-btn{border:1px solid var(--nav-separator);cursor:pointer;text-align:left;width:100%;transition:background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);font-family:inherit}.sidebar-footer-btn:hover{background:rgb(var(--white-rgb) / 12%)}.sidebar-footer-btn.active{background:rgb(var(--blue-rgb) / 26%);border-color:#0000}.school-note{background:var(--blue-soft);border-radius:var(--r-sm);padding:var(--sp-3) var(--sp-4);font-size:var(--fs-sub);line-height:var(--lh-sub);color:var(--blue-strong);margin:var(--sp-3) 0;border:1px solid #0000}.school-classes{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-1);padding:var(--sp-4) var(--sp-5);margin:var(--sp-4) 0}.school-classes header{align-items:center;gap:var(--sp-2);margin-bottom:var(--sp-3);display:flex}.class-chips{gap:var(--sp-2);margin-bottom:var(--sp-3);flex-wrap:wrap;display:flex}.class-chip{align-items:center;gap:var(--sp-1);background:var(--blue-soft);border-radius:var(--r-pill);padding:var(--sp-1) var(--sp-3);font-size:var(--fs-sub);font-weight:var(--fw-semibold);color:var(--blue-strong);white-space:nowrap;border:1px solid #0000;line-height:1.25;display:inline-flex}.class-chip em{color:var(--muted);font-style:normal;font-size:var(--fs-cap);font-weight:var(--fw-regular)}.class-chip-x{background:rgb(var(--ink-rgb) / 10%);cursor:pointer;width:18px;height:18px;color:var(--ink-2);transition:background var(--dur-fast) var(--ease-out), color var(--dur-fast) 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span{align-items:center;gap:5px;font-size:12px;font-weight:900;display:inline-flex}.feedback-editor{gap:7px;margin-top:12px;display:grid}.feedback-editor span,.answer-box span,.notebook-head span,.problem-title-row span,.student-picker span{font-size:12px;font-weight:900}.feedback-editor textarea,.question-box textarea,.answer-box input,.search-input input{border:1px solid var(--line);border-radius:var(--radius);background:#fff;min-height:42px;padding:10px 12px}.feedback-editor textarea{resize:vertical;min-height:92px}.practice-canvas-wrap{border:1px solid 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button{background:var(--surface-2);border:1px solid var(--line);cursor:pointer;border-radius:8px;justify-content:center;align-items:center;width:32px;height:32px;display:flex}.width-picks button[data-active=true]{background:#e9e2ff;border-color:#d8ccff}.width-picks i{background:var(--ink);border-radius:999px;width:17px;display:block}.canvas-bottom-bar{z-index:5;background:#fff;border:1px solid #eef2f8;border-radius:14px;justify-content:space-between;align-items:center;gap:8px;padding:6px 10px;display:flex;position:absolute;bottom:16px;left:16px;right:16px;box-shadow:0 10px 30px #0f1f461f,0 2px 6px #0f1f460f}.canvas-bottom-bar .bottom-left,.canvas-bottom-bar .bottom-right{align-items:center;gap:4px;display:flex}.bottom-icon{color:#44506a;cursor:pointer;background:0 0;border:0;border-radius:9px;justify-content:center;align-items:center;width:38px;height:36px;transition:background .12s,color .12s;display:flex}.bottom-icon:hover:not(:disabled){background:#f3f6fb}.bottom-icon[data-active=true]{background:var(--blue-soft);color:var(--blue)}.bottom-icon[data-danger=true]:hover:not(:disabled){background:var(--red-soft);color:var(--red)}.bottom-icon:disabled{cursor:not-allowed;opacity:.32}.zoom-inline{color:var(--ink-2);align-items:center;font-weight:800;display:flex}.zoom-inline button{color:var(--ink-2);cursor:pointer;background:0 0;border:0;border-radius:8px;min-width:30px;height:32px;padding:0 6px;font-size:14px;font-weight:800}.zoom-inline button:hover{background:#f3f6fb}.zoom-inline button:nth-child(2){min-width:52px;font-size:12px}.bottom-divider{background:var(--line);width:1px;height:20px}.select-count{background:var(--blue-soft);color:var(--blue);border-radius:999px;justify-content:center;align-items:center;min-width:22px;height:22px;padding:0 6px;font-size:12px;font-weight:900;display:inline-flex}@media (width<=480px){.canvas-bottom-bar{gap:4px;padding:5px 7px;overflow-x:auto}.canvas-bottom-bar .bottom-left,.canvas-bottom-bar .bottom-right,.bottom-icon,.zoom-inline button,.bottom-divider{flex:none}}.score-gauge{align-content:start;gap:8px;display:grid}.score-gauge span{color:var(--muted);font-size:13px;font-weight:900}.score-gauge strong{font-size:42px;line-height:1}.score-gauge em{color:var(--muted);font-style:normal}.score-gauge div{background:conic-gradient(var(--blue) var(--value), #dfe6ef 0);border-radius:50%;width:132px;height:132px;margin-top:12px}.student-report-table{border:1px solid var(--line);border-radius:var(--radius);overflow:auto}.report-table-head,.student-report-table>div:not(.report-table-head){grid-template-columns:48px 1.15fr .8fr .8fr .7fr .8fr 70px;min-width:760px;display:grid}.report-table-head span,.student-report-table>div:not(.report-table-head) span,.student-report-table strong,.student-report-table button{border-bottom:1px solid var(--line);border-right:1px solid var(--line);align-items:center;min-height:42px;padding:8px;display:flex}.report-table-head span{color:var(--ink-2);background:#eef4ff;font-size:12px;font-weight:900}.student-report-table button{color:var(--blue);cursor:pointer;background:0 0;border-top:0;font-weight:900}.search-input{background:var(--surface-2);border-radius:var(--r-sm);color:var(--muted);align-items:center;gap:var(--sp-2);min-width:260px;padding:0 var(--sp-3);transition:border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);border:1px solid #0000;display:flex}.search-input:focus-within{background:var(--surface);border-color:var(--blue);box-shadow:var(--focus-ring)}.search-input input{color:var(--ink);min-height:var(--control-h);background:0 0;border:0;width:100%;padding:0}.search-input input:focus-visible{outline:none}.student-directory{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;display:grid}.student-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-1);gap:var(--sp-2);padding:var(--sp-4);display:grid}.student-card>span{color:var(--on-accent);font-weight:var(--fw-bold);border-radius:50%;justify-content:center;align-items:center;width:38px;height:38px;display:flex}.student-card em,.student-card small{color:var(--muted);font-size:var(--fs-cap);font-style:normal}.student-name-edit{color:var(--ink);background:0 0;border:1px solid #0000;border-radius:7px;width:100%;margin:0;padding:3px 6px;font-family:inherit;font-size:15px;font-weight:800}.student-name-edit:hover{border-color:var(--line-strong)}.student-name-edit:focus{background:var(--surface);border-color:var(--blue);box-shadow:var(--focus-ring);outline:none}.progress-bar,.exp-track{background:#e5ebf3;border-radius:999px;height:7px;overflow:hidden}.progress-bar i,.exp-track i{background:var(--blue);height:100%;display:block}.student-home{max-width:1120px}.student-hero{background:radial-gradient(circle at 25% 10%, #2f65d81f, transparent 36%), var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);gap:18px;padding:24px;display:grid}.student-profile{align-items:center;gap:18px;display:flex}.student-profile>span{color:#fff;border-radius:50%;justify-content:center;align-items:center;width:92px;height:92px;font-size:34px;font-weight:900;display:flex}.student-profile h1{margin:0 0 4px;font-size:34px}.student-profile p,.student-profile em{color:var(--muted);margin:0;font-style:normal}.student-profile strong{margin:10px 0 7px;display:inline-block}.badge-strip{flex-wrap:wrap;gap:8px;display:flex}.badge-strip span{background:var(--amber-soft);color:#7d560b;border:1px solid #ffe2a0;border-radius:999px;align-items:center;gap:6px;padding:7px 10px;font-size:12px;font-weight:900;display:flex}.student-sheet-list{gap:12px;display:grid}.sheet-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);grid-template-columns:minmax(0,1.2fr) minmax(220px,.7fr) auto;align-items:center;gap:18px;padding:18px;display:grid;box-shadow:0 10px 24px #0f1f460f}.personalized-card{background:var(--mint-soft);border-radius:var(--radius);border:1px solid #b9e8df;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:16px;padding:18px;display:grid}.personalized-card span{color:#0e655c;background:#d7f2ec;border-radius:999px;padding:6px 9px;font-size:12px;font-weight:900}.personalized-card h2{margin:10px 0 6px}.personalized-card p{color:#276c64;margin:0}.sheet-card h2{margin:7px 0}.sheet-card p,.sheet-detail em{color:var(--muted);margin:0;font-style:normal}.sheet-card [data-status]{background:var(--blue-soft);color:var(--blue-strong);border-radius:999px;padding:6px 9px;font-size:12px;font-weight:900}.sheet-detail{gap:5px;display:grid}.student-workspace{gap:14px;min-height:100%;padding:18px;display:grid;overflow-x:auto}.worksheet-header{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);justify-content:space-between;align-items:center;gap:18px;padding:16px;display:flex}.worksheet-header-actions{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:8px;display:flex}.screen-actions{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--radius);gap:5px;padding:4px;display:flex}.screen-actions button{border:1px solid var(--line);color:var(--ink-2);cursor:pointer;background:#fff;border-radius:6px;justify-content:center;align-items:center;width:34px;height:34px;display:flex}.screen-actions button[data-active=true]{color:var(--blue-strong);background:#e9e2ff;border-color:#d8ccff}.worksheet-layout{grid-template-columns:72px minmax(390px, 1fr) 16px clamp(340px, var(--notebook-width,560px), 980px);gap:12px;min-height:0;display:grid;overflow-x:auto}.worksheet-layout[data-screen-mode=notebook]{grid-template-columns:minmax(0,1fr)}.worksheet-layout[data-screen-mode=notebook] .problem-nav,.worksheet-layout[data-screen-mode=notebook] .problem-solving-panel,.worksheet-layout[data-screen-mode=notebook] .notebook-resizer{display:none}.worksheet-layout[data-screen-mode=notebook] .notebook-area{min-height:calc(100dvh - 196px)}.worksheet-layout[data-screen-mode=notebook] .practice-canvas{min-height:min(72dvh,760px)}.worksheet-layout[data-screen-mode=problem]{grid-template-columns:72px minmax(0,1fr)}.worksheet-layout[data-screen-mode=problem] .notebook-resizer,.worksheet-layout[data-screen-mode=problem] .notebook-area{display:none}.problem-nav{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);align-content:start;gap:8px;padding:10px;display:grid}.problem-nav button{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--radius);cursor:pointer;place-items:center;gap:2px;min-height:54px;display:grid}.problem-nav button[data-active=true]{background:var(--blue);border-color:var(--blue);color:#fff}.problem-nav 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var(--line);border-radius:var(--radius);background:#fff;gap:16px;min-height:180px;padding:16px;display:grid}.choice-list{gap:8px;display:grid}.choice-list button{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--radius);cursor:pointer;text-align:left;align-items:center;gap:10px;min-height:42px;padding:8px 10px;display:flex}.choice-list button[data-active=true]{background:var(--blue-soft);border-color:var(--blue);color:var(--blue-strong);font-weight:900}.choice-list button>span:first-child{border:1px solid var(--line);background:#fff;border-radius:50%;justify-content:center;align-items:center;width:24px;height:24px;display:flex}.answer-box{grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:8px;margin-top:12px;display:grid}.answer-box label{gap:6px;display:grid}.answer-box button,.question-box 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var(--line);border-radius:var(--radius);color:var(--muted);padding:12px}.empty{color:var(--muted)}.student-result-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;display:grid}.result-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);gap:8px;padding:14px;display:grid}.result-card>span{color:var(--muted);font-size:12px;font-weight:900}.result-card em{color:var(--blue);font-style:normal;font-weight:900}.result-card[data-status=incorrect] em{color:var(--red)}.result-card[data-status=correct] em{color:var(--green)}.result-card p{color:var(--muted);margin:0}.math-line{line-height:1.7}.math-inline{vertical-align:middle;display:inline-block}.math-block,.formula{display:block;overflow-x:auto}.head-actions{align-items:center;gap:8px;display:flex}.ghost-button{background:var(--surface);border:1px solid var(--line);color:var(--ink-2);cursor:pointer;border-radius:9px;align-items:center;gap:6px;min-height:38px;padding:0 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var(--line);color:var(--ink-2);cursor:pointer;border-radius:8px;align-items:center;gap:6px;width:fit-content;padding:7px 10px;font-size:13px;font-weight:700;display:inline-flex}.html-activity-toggle{color:var(--ink-2);align-items:center;gap:7px;width:fit-content;font-size:13px;font-weight:800;display:inline-flex}.block-sub.warn{color:var(--amber);font-size:var(--fs-cap);margin:0}.choice-row{align-items:center;gap:8px;display:flex}.choice-row .block-input{flex:1}.block-add-choice{background:var(--surface);border:1px solid var(--line);color:var(--ink-2);cursor:pointer;border-radius:8px;align-items:center;gap:6px;width:fit-content;min-height:32px;padding:0 10px;font-weight:700;display:inline-flex}.block-palette{border:1px dashed var(--line);background:#fff;border-radius:12px;gap:8px;padding:12px;display:grid}.palette-label{color:var(--ink-2);font-size:12px;font-weight:800}.palette-group{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.palette-group em{color:var(--muted);min-width:38px;margin-right:4px;font-size:11px;font-style:normal;font-weight:800}.palette-btn{background:var(--surface);border:1px solid var(--line);color:var(--ink-2);cursor:pointer;border-radius:999px;align-items:center;gap:5px;min-height:34px;padding:0 12px;font-size:13px;font-weight:700;display:inline-flex}.palette-btn:hover{background:var(--blue);border-color:var(--blue);color:#fff}.module-insert-notice{color:var(--blue);min-height:0;font-size:12px;font-weight:800}.module-insert-notice:empty{display:none}.module-template-panel{border:1px solid var(--line);background:#fff;border-radius:14px;gap:12px;margin-top:10px;padding:14px;display:grid;box-shadow:0 10px 30px #0f1f4614}.module-template-panel header{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.module-template-panel header strong{font-size:15px}.module-template-panel header p{color:var(--muted);margin:4px 0 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8px;font-size:11px;font-weight:800}.lesson-delete{color:var(--red);cursor:pointer;background:0 0;border:0;justify-self:start;align-items:center;gap:5px;padding:4px 0;font-size:13px;font-weight:700;display:inline-flex}.lesson-preview-block{border:1px solid var(--line);background:#fff;border-radius:12px;padding:16px}.lesson-text{color:var(--ink);white-space:pre-wrap;margin:0;line-height:1.7}.lesson-prompt{margin:0 0 8px;font-weight:800}.lesson-figure{border:1px solid var(--line);background:#fff;border-radius:10px;width:100%;max-width:440px;margin:6px 0 12px;display:block}.lesson-image{border-radius:10px;max-width:100%}.lesson-video{aspect-ratio:16/9;background:#f4f6f8;border:0;width:100%;min-height:320px;display:block}.embed-editor{gap:6px;display:grid}.embed-editor-hint{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.embed-editor-hint small{color:var(--muted);font-size:12px}.embed-badge{background:var(--surface);border:1px solid 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.12s;display:inline-flex}.player-dot:hover:not(:disabled){border-color:var(--blue);color:var(--blue)}.player-dot.done{background:var(--blue-soft);color:var(--blue-strong);border-color:#cfe0ff}.player-dot.on{background:var(--blue);border-color:var(--blue);color:#fff}.player-dot:disabled{color:var(--muted);cursor:default;opacity:.55}.player-locked{justify-content:center;width:fit-content;margin:12px auto 0}.lesson-locked.inline{align-items:center;gap:6px;margin:0;padding:6px 10px;font-size:12.5px;display:inline-flex}.player-body{max-width:880px;margin:0 auto}.player-progress{align-items:center;gap:12px;margin-bottom:14px;display:flex}.player-progress-label{color:var(--ink-2);white-space:nowrap;font-size:13px;font-weight:700}.player-progress-label strong{color:var(--blue)}.player-progress-track{background:#eef1f5;border-radius:999px;flex:1;height:8px;overflow:hidden}.player-progress-track i{background:var(--blue);border-radius:999px;height:100%;transition:width 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#f0d6b0;border-radius:10px;align-items:flex-start;gap:8px;margin-bottom:12px;padding:10px 13px;font-size:13.5px;font-weight:600;display:flex}.feedback-banner svg{flex:none;margin-top:2px}.run-view .run-head{flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:8px;display:flex}.run-back{border:1px solid var(--line,#e4e9f2);cursor:pointer;color:#44506a;background:#fff;border-radius:10px;align-items:center;gap:4px;padding:8px 12px;font-size:13.5px;font-weight:700;display:inline-flex}.run-title{flex:1;min-width:180px}.run-title h1{margin:2px 0 0}.run-tabs{border-bottom:1px solid var(--line);flex-wrap:wrap;gap:6px;margin-bottom:14px;display:flex}.run-tab{color:var(--ink-2);cursor:pointer;background:0 0;border:0;border-bottom:2px solid #0000;align-items:center;gap:6px;min-height:38px;margin-bottom:-1px;padding:0 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strong{color:#1c2433;font-size:16px}.run-card-meta{color:var(--muted);flex-wrap:wrap;gap:10px;font-size:12.5px;display:flex}.run-card-meta span{align-items:center;gap:4px;display:inline-flex}.run-card-go{color:#2f65d8;align-items:center;gap:5px;font-size:13.5px;font-weight:700;display:inline-flex}.run-card.running .run-card-go{color:#1c7a4d}.run-badge{color:#fff;background:#1c7a4d;border-radius:999px;align-items:center;gap:4px;padding:2px 9px;font-size:11px;font-weight:800;display:inline-flex;position:absolute;top:12px;right:12px}.peek-responses{gap:5px;margin:8px 0;display:grid}.peek-row{border-top:1px solid #f0f3f8;align-items:center;gap:8px;padding:4px 0;font-size:13px;display:flex}.peek-row:first-of-type{border-top:0}.peek-q{color:#44506a;flex:none;width:28px;font-weight:800}.peek-val{overflow-wrap:anywhere;flex:1;min-width:0}.peek-val em{color:var(--muted)}.personal-feedback{gap:5px;margin:8px 0;display:grid}.personal-feedback 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minmax(0,1fr);gap:10px;display:grid;position:fixed;inset:0}.sketchpad-full-head{color:#fff;justify-content:space-between;align-items:center;gap:12px;display:flex}.sketchpad-full-head>strong{font-size:15px;font-weight:800}.sketchpad-full-head .sketchpad-btn{background:#fff}.sketchpad-body.full{background:#fff;border-radius:12px;height:100%;overflow:hidden}.lesson-sketch-ph{gap:8px;display:grid}.sketch-ph-area{border:1.5px dashed var(--line-strong);min-height:160px;color:var(--muted);border-radius:12px;justify-content:center;align-items:center;font-size:13.5px;display:flex}.sketch-paper-pick{flex-wrap:wrap;align-items:center;gap:8px;margin-top:6px;display:flex}.sketch-paper-pick span{color:var(--muted);font-size:12.5px}.paper-opt{border:1px solid var(--line,#e4e9f2);cursor:pointer;color:#44506a;background:#fff;border-radius:8px;padding:5px 11px;font-size:13px;font-weight:600}.paper-opt.on{color:#fff;background:#2f65d8;border-color:#2f65d8}.paper-grid{background-image:linear-gradient(#eef1f6 1px,#0000 1px),linear-gradient(90deg,#eef1f6 1px,#0000 1px);background-size:22px 22px}.paper-ruled{background-image:linear-gradient(#eef1f6 1px,#0000 1px);background-size:100% 26px}.paper-blank{background:#fcfcfd}.sketch-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px;margin-top:8px;display:grid}.sketch-thumb-canvas{height:150px;position:relative;overflow:hidden}.sketch-thumb-canvas .practice-canvas-wrap,.sketch-thumb-canvas canvas{pointer-events:none}.peek-sketch{display:block}.peek-sketch-canvas{border:1px solid var(--line,#e4e9f2);border-radius:8px;height:200px;margin-top:4px;overflow:hidden}.sketch-observe-section{margin:14px 0}.sketch-observe{border:1px solid var(--line,#e4e9f2);background:#f7f9fc;border-radius:14px;padding:12px 14px}.sketch-observe-head{flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:8px;font-size:14px;display:flex}.sketch-observe-head>strong{color:#2f3b52;font-weight:800}.sketch-observe-count{color:var(--muted);font-size:12.5px;font-weight:600}.sketch-observe-toggle{color:#44506a;cursor:pointer;align-items:center;gap:5px;font-size:12.5px;font-weight:600;display:inline-flex}.sketch-observe-filter{border:1px solid var(--line,#e4e9f2);color:#44506a;cursor:pointer;background:#fff;border-radius:8px;padding:5px 9px;font-size:12.5px;font-weight:600}.sketch-tile{text-align:left;border:1px solid var(--line,#e4e9f2);cursor:pointer;background:#fff;border-radius:10px;width:100%;padding:0;display:block;overflow:hidden}.sketch-tile:hover{border-color:#2f65d8}.sketch-tile-name{color:#44506a;border-bottom:1px solid #f0f3f8;align-items:center;gap:6px;padding:6px 9px;font-size:12.5px;font-weight:700;display:flex}.sketch-tile-name em{color:var(--muted);flex:1;font-style:normal;font-weight:500}.sketch-tile-badge{display:inline-flex}.sketch-tile-canvas{display:block}.sketch-zoom{background:#fff;border:1px solid #d6e2fb;border-radius:12px;margin-top:12px;overflow:hidden}.sketch-zoom-head{border-bottom:1px solid #f0f3f8;align-items:center;gap:8px;padding:8px 12px;display:flex}.sketch-zoom-head>strong{color:#2f3b52;font-size:14px;font-weight:800}.sketch-zoom-head>span{color:var(--muted);flex:1;font-size:12.5px}.sketch-zoom-canvas{height:420px;position:relative;overflow:hidden}.sketch-mark-stack{height:100%;position:relative}.sketch-mark-stack .sketch-mark-bg{position:absolute;inset:0}.sketch-mark-stack .sketch-mark-bg .practice-canvas-wrap,.sketch-mark-stack .sketch-mark-bg canvas{pointer-events:none}.sketch-mark-stack .sketch-mark-fg{position:absolute;inset:0}.sketch-mark-stack .sketch-mark-fg-readonly{pointer-events:none;position:absolute;inset:0}.sketch-mark-stack .sketch-mark-fg-readonly .practice-canvas-wrap,.sketch-mark-stack .sketch-mark-fg-readonly canvas{pointer-events:none}.sketch-mark-hint{color:var(--muted);background:var(--surface-2);border-top:1px solid var(--line);padding:6px 12px;font-size:12px}.sketch-mark-hint.live{color:#c0392b;background:#fff1f0;align-items:center;gap:7px;font-weight:800;display:flex}.live-pulse{background:#e23b2e;border-radius:50%;width:9px;height:9px;animation:1.3s ease-out infinite live-pulse;display:inline-block;box-shadow:0 0 #e23b2e99}@keyframes live-pulse{0%{box-shadow:0 0 #e23b2e8c}70%{box-shadow:0 0 0 7px #e23b2e00}to{box-shadow:0 0 #e23b2e00}}.practice-canvas-wrap[data-transparent=true],.practice-canvas[data-transparent=true]{background:0 0}.practice-canvas-wrap[data-transparent=true]{border-color:#0000}.slide-resp-note{color:var(--muted);margin-left:8px;font-size:12px;font-weight:500}.cardsort,.cardsort-board{gap:10px;display:grid}.cardsort-col{border:1px solid var(--line,#e4e9f2);background:#f7f9fc;border-radius:12px;min-height:80px;padding:10px}.cardsort-col header{color:#2f65d8;text-align:center;margin-bottom:8px;font-size:13px;font-weight:800}.sort-card{cursor:pointer;text-align:left;background:#fff;border:1px solid #d4dbe6;border-radius:9px;width:100%;margin-bottom:7px;padding:9px 11px;font-size:14px;display:block}.sort-card.placed:hover:not(:disabled){border-color:#ea4335}.sort-card:disabled{cursor:default}.cardsort-tray{border:1.5px dashed #c9d2e0;border-radius:12px;gap:8px;padding:10px;display:grid}.cardsort-tray-label{color:var(--muted);font-size:12px;font-weight:600}.sort-card-pick{background:#fff;border:1px solid #d4dbe6;border-radius:9px;flex-wrap:wrap;align-items:center;gap:10px;padding:8px 11px;display:flex}.sort-card-text{flex:1;min-width:90px;font-size:14px}.sort-card-cats{flex-wrap:wrap;gap:6px;display:flex}.sort-card-cats button{color:#2f65d8;cursor:pointer;background:#eef3fc;border:1px solid #2f65d8;border-radius:8px;padding:4px 10px;font-size:12.5px;font-weight:600}.cardsort-unplaced{color:var(--muted);font-size:12px}.cardsort-edit{border:1px solid var(--line,#e4e9f2);border-radius:10px;gap:7px;margin-top:6px;padding:10px;display:grid}.block-sub{color:var(--muted);font-size:12px;font-weight:700}.cardsort-edit-row{align-items:center;gap:6px;display:flex}.cardsort-edit-row .block-input{flex:1}.cardsort-add{cursor:pointer;color:#44506a;background:#f7f9fc;border:1px dashed #c9d2e0;border-radius:8px;justify-self:start;align-items:center;gap:4px;padding:6px 11px;font-size:12.5px;font-weight:600;display:inline-flex}.response-cardsort{flex-basis:100%}.lesson-explore{gap:10px;display:grid}.lesson-explore .lesson-prompt{margin:0}.sample-responses{background:#f4f8ff;border:1px solid #d6e2fb;border-radius:12px;gap:10px;padding:12px 14px;display:grid}.sample-responses-head{color:var(--blue-strong);align-items:center;gap:6px;font-size:13px;font-weight:800;display:flex}.sample-responses-empty{color:var(--muted);margin:0;font-size:13px}.sample-responses-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px;display:grid}.sample-response-card{border:1px solid var(--line);background:#fff;border-radius:10px;padding:10px 12px;font-size:14px}.sample-responses-note{color:var(--muted);margin:6px 0 0;font-size:13px}.responses-topbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.snap-btn{color:#2f65d8;cursor:pointer;vertical-align:middle;background:#eef3fc;border:0;border-radius:6px;justify-content:center;align-items:center;width:22px;height:22px;margin-left:6px;padding:0;display:inline-flex}.snap-btn:hover{color:#fff;background:#2f65d8}.snap-collect-btn{color:#2f65d8;cursor:pointer;background:#fff;border:1px solid #2f65d8;border-radius:10px;align-items:center;gap:6px;padding:7px 13px;font-size:13px;font-weight:700;display:inline-flex}.snap-collect-btn.on{color:#fff;background:#2f65d8}.snap-board{background:#f3f7ff;border:1px solid #d6e2fb;border-radius:14px;margin:12px 0;padding:14px 16px}.snap-board header{align-items:baseline;gap:10px;margin-bottom:10px;display:flex}.snap-board header span{color:var(--muted);font-size:12.5px}.snap-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;display:grid}.snap-card{border:1px solid var(--line,#e4e9f2);background:#fff;border-radius:10px;overflow:hidden}.snap-card-name{color:#44506a;border-bottom:1px solid #f0f3f8;align-items:center;gap:4px;padding:7px 9px;font-size:12.5px;font-weight:700;display:flex}.snap-card-name em{color:var(--muted);flex:1;font-style:normal;font-weight:500}.snap-text{padding:12px;font-size:15px;display:block}.snap-canvas{height:180px;overflow:hidden}.runner-global-banner{color:var(--blue-strong);background:#eaf2ff;border:1px solid #b9d0f5;border-radius:10px;align-items:center;gap:8px;margin-bottom:12px;padding:10px 14px;font-size:13px;font-weight:800;display:flex}.runner-global-stop{background:var(--red);color:#fff;cursor:pointer;border:0;border-radius:8px;align-items:center;gap:4px;min-height:32px;margin-left:auto;padding:0 12px;font-size:12px;font-weight:800;display:inline-flex}.assign-content-step{gap:12px;display:grid}.assign-content-step .step-hint{color:var(--muted);margin:0;font-size:13px}.content-composer{gap:12px;display:grid}.worksheet-intro{border:1px solid var(--line);background:#f4f8ff;border-radius:12px;gap:12px;margin-bottom:14px;padding:14px 16px;display:grid}.worksheet-intro-block{font-size:14px}.problem-picker{border:1px solid var(--line);background:#fff;border-radius:12px;gap:10px;margin-top:10px;padding:14px;display:grid}.problem-picker header{justify-content:space-between;align-items:center;display:flex}.problem-picker header strong{font-size:14px}.problem-picker-hint{color:var(--muted);margin:0;font-size:12px}.problem-picker-list{gap:8px;max-height:360px;display:grid;overflow-y:auto}.problem-pick-item{background:var(--surface);border:1px solid var(--line);cursor:pointer;text-align:left;border-radius:10px;grid-template-columns:30px minmax(0,1fr) auto;align-items:center;gap:10px;padding:9px 12px;display:grid}.problem-pick-item:hover{border-color:var(--blue)}.pick-no{background:var(--blue-soft);color:var(--blue-strong);border-radius:7px;justify-content:center;align-items:center;width:26px;height:26px;font-size:12px;font-weight:800;display:inline-flex}.pick-body{gap:2px;min-width:0;display:grid}.pick-body strong{text-overflow:ellipsis;white-space:nowrap;font-size:13px;overflow:hidden}.pick-body small{color:var(--muted);font-size:11px}.lesson-assign{border:1px solid var(--line);background:#fff;border-radius:12px;gap:8px;padding:12px;display:grid}.assign-label{color:var(--ink-2);font-size:12px;font-weight:800}.assign-types{gap:6px;display:flex}.assign-type{background:var(--surface);border:1px solid var(--line);cursor:pointer;border-radius:999px;min-height:32px;padding:0 14px;font-size:13px;font-weight:700}.assign-type.on{background:var(--blue);border-color:var(--blue);color:#fff}.assign-options{flex-wrap:wrap;gap:10px 14px;display:flex}.assign-chk{align-items:center;gap:5px;font-size:13px;display:inline-flex}.assign-chk small{color:var(--muted)}.seg-control{background:var(--surface);border:1px solid var(--line);border-radius:9px;display:inline-flex;overflow:hidden}.seg-control button{color:var(--ink-2);cursor:pointer;background:0 0;border:0;align-items:center;gap:5px;min-height:36px;padding:0 12px;font-size:13px;font-weight:800;display:inline-flex}.seg-control button.on{background:var(--blue);color:#fff}.lesson-responses{gap:14px;display:grid}.responses-summary{color:var(--ink-2);margin:0;font-size:13px}.response-block{border:1px solid var(--line);background:#fff;border-radius:12px;gap:10px;padding:14px;display:grid}.response-block header{align-items:baseline;gap:8px;font-weight:800;display:flex}.q-index{background:var(--blue);color:#fff;border-radius:6px;padding:2px 7px;font-size:12px}.response-tally{gap:7px;display:grid}.tally-row{grid-template-columns:160px minmax(0,1fr) 28px;align-items:center;gap:10px;display:grid}.tally-row[data-correct=true] .tally-label{color:var(--green);font-weight:800}.tally-label{font-size:13px}.tally-bar{background:var(--surface);border-radius:999px;height:12px;overflow:hidden}.tally-bar i{background:var(--blue);height:100%;display:block}.tally-row[data-correct=true] .tally-bar i{background:#34c08a}.tally-count{color:var(--ink-2);text-align:right;font-weight:800}.response-list{gap:6px;display:grid}.response-item{background:var(--surface);border-radius:8px;justify-content:space-between;align-items:center;gap:10px;padding:8px 12px;display:flex}.response-item strong{font-size:13px}.lesson-player .lesson-play-blocks{gap:16px;max-width:none;display:grid}.lesson-play-block{border:1px solid var(--line);background:#fff;border-radius:12px;padding:16px}.player-stage{border:1px solid var(--line);background:#fff;border-radius:16px;gap:18px;padding:26px 28px;box-shadow:0 6px 24px #0f1f460f}.player-stage .lesson-play-block{background:0 0;border:0;border-radius:0;padding:0}.player-stage .lesson-prompt{font-size:17px}.player-stage .lesson-text{font-size:16px;line-height:1.6}.lesson-tabs{flex-wrap:wrap;gap:6px;margin-bottom:12px;display:flex}.lesson-tab{background:var(--surface);border:1px solid var(--line);cursor:pointer;border-radius:999px;min-height:34px;padding:0 14px;font-weight:700}.lesson-tab[data-active=true]{background:var(--blue);border-color:var(--blue);color:#fff}.lesson-locked{color:#8a5a0f;background:#fff6e6;border:1px dashed #f3d9a6;border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:18px;font-weight:700;display:flex}.lesson-dashboard{border:1px solid var(--line);background:#fff;border-radius:12px;gap:10px;padding:14px;display:grid;overflow-x:auto}.dash-grid{gap:3px;min-width:max-content;display:grid}.dash-qh{color:var(--ink-2);cursor:pointer;background:0 0;border:0;border-radius:6px;justify-content:center;align-items:center;min-height:24px;font-size:12px;font-weight:800;display:flex}.dash-qh.active{background:var(--blue);color:#fff}.slide-strip{scrollbar-width:thin;gap:8px;padding:4px 2px 10px;display:flex;overflow-x:auto}.slide-thumb{border:1px solid var(--line);cursor:pointer;text-align:left;background:#fff;border-radius:10px;flex-direction:column;flex:none;align-items:stretch;gap:4px;width:124px;height:78px;padding:7px 9px;transition:border-color .12s,box-shadow .12s;display:flex}.slide-thumb:hover{border-color:var(--blue)}.slide-thumb.active{border-color:var(--blue);box-shadow:0 0 0 2px #2f65d82e}.slide-thumb-top{color:var(--ink-2);align-items:center;gap:6px;display:flex}.slide-num{background:var(--surface);color:var(--ink);border-radius:6px;justify-content:center;align-items:center;min-width:20px;height:20px;font-size:12px;font-weight:800;display:inline-flex}.slide-qbadge{background:var(--blue);color:#fff;border-radius:6px;padding:1px 6px;font-size:11px;font-weight:800}.slide-snippet{-webkit-line-clamp:2;color:var(--ink);-webkit-box-orient:vertical;font-size:12px;font-weight:600;line-height:1.3;display:-webkit-box;overflow:hidden}.slide-detail{border:1px solid var(--line);background:#fff;border-radius:12px;gap:12px;padding:14px;display:grid}.slide-stage{gap:12px;display:flex}.slide-stage-num{background:var(--blue);color:#fff;border-radius:8px;flex:none;justify-content:center;align-items:center;width:30px;height:30px;font-size:14px;font-weight:800;display:inline-flex}.slide-stage-body{flex:1;min-width:0}.slide-responses{border-top:1px solid var(--line);gap:8px;padding-top:12px;display:grid}.slide-resp-head{align-items:center;gap:10px;display:flex}.slide-resp-head strong{font-size:13px}.slide-content-note{margin:0}.dash-name{color:var(--ink);text-overflow:ellipsis;white-space:nowrap;align-items:center;padding-right:6px;font-size:12px;font-weight:700;display:flex;overflow:hidden}.dash-name-btn{cursor:pointer;text-align:left;background:0 0;border:0;border-radius:6px;justify-content:flex-start;gap:5px}.dash-name-btn:hover{background:var(--blue-soft)}.dash-name-btn.active{background:var(--blue);color:#fff}.personal-badge{background:var(--red);color:#fff;border-radius:999px;justify-content:center;align-items:center;min-width:16px;height:16px;padding:0 4px;font-size:10px;font-weight:800;display:inline-flex}.dash-legend-hint{color:var(--muted);margin-left:auto}.slide-respbadge{background:var(--blue);color:#fff;border-radius:999px;justify-content:center;align-items:center;min-width:18px;height:18px;padding:0 5px;font-size:11px;font-weight:800;display:inline-flex}.screens-section{gap:10px;margin:4px 0;display:grid}.screens-head{flex-wrap:wrap;align-items:baseline;gap:10px;display:flex}.screens-head>strong{color:var(--ink);font-size:14px;font-weight:800}.screens-head>span{color:var(--ink-2);font-size:12.5px}.screens-grid{grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:12px;display:grid}.screen-tile{border:1px 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