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254;--c-bg-sand: 237 241 249;--c-amber-surface: 246 238 220;--c-amber-ink: 119 87 27;--c-lecture-pale: 247 250 252;--c-exercise-surface: 244 237 223;--c-exercise-border-hover: 199 172 127;--c-exercise-highlight: 249 243 226;--c-mock-frame: 216 210 198;--c-mock-warn: 231 160 143;--c-mock-warn-ink: 30 36 50;--c-correct-line: 174 203 180;--c-chapter-surface: 234 233 243;--c-mistake-border: 228 193 184;--c-mistake-tint: 246 227 221;--c-ink-shadow: 30 41 70;--c-seal-red: 169 79 53;--c-seal-indigo: 46 74 125;--c-lesson-go: 15 124 134;--c-seal-faded: 124 135 152;--c-ink-raise: 59 98 214;--c-paper-cream: 246 249 255;--c-pencil-track: 229 234 243;--c-paper: 255 255 255;--c-sheen: 255 255 255;--c-on-accent: 255 255 255;--r-paper: 1.1rem;--page-gutter: .65rem;--paper-lift: inset 0 0 0 1px rgb(255 255 255), 0 1rem 2.6rem -1.4rem rgb(38 74 124 / .4);--paper-desk: rgb(241 247 250 / .97);--paper-pad-rail: .8rem .7rem .7rem .8rem;--paper-pad-main: 1rem 1.3rem .7rem 1.3rem;--r-panel: .8rem;--r-card: 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study-focus-pulse{0%{filter:drop-shadow(0 0 0 rgb(var(--c-accent) / 0))}38%{filter:drop-shadow(0 0 1rem rgb(var(--c-accent) / .32))}to{filter:drop-shadow(0 0 0 rgb(var(--c-accent) / 0))}}@keyframes pending-status-in{0%{opacity:0;transform:translate3d(-.25rem,0,0)}to{opacity:1;transform:translateZ(0)}}@keyframes pending-stream-in{0%{opacity:0;transform:translate3d(0,.1875rem,0)}to{opacity:1;transform:translateZ(0)}}.pending-stream-text{animation:pending-stream-in .22s ease-out both}@keyframes pending-caret-glow{0%,to{opacity:1;box-shadow:0 0 .45em rgb(var(--c-accent) / .9),0 0 .1em rgb(var(--c-paper))}50%{opacity:.45;box-shadow:0 0 .12em rgb(var(--c-accent) / .6)}}.pending-stream-text .markdown-content>:is(p,h1,h2,h3,h4,h5,h6):last-child:after,.pending-stream-text .markdown-content>:is(ul,ol):last-child>li:last-child:not(:has(>p,>ul,>ol)):after,.pending-stream-text .markdown-content>:is(ul,ol):last-child>li:last-child>p:last-child:after,.pending-stream-text 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canvas{position:absolute;top:0;right:0;bottom:0;left:0;display:block;width:100%;height:100%;cursor:crosshair;touch-action:none;-moz-user-select:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}.aslot-photo-tools{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;min-height:32px}.aslot-photo-count{font-size:var(--fs-note);color:rgb(var(--c-text-tertiary));font-variant-numeric:tabular-nums}.aslot-file{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.aslot-photos{display:flex;flex-wrap:wrap;gap:.7rem;padding-top:.35rem}.aslot-photo-page{position:relative;width:6rem;margin:0}.aslot-photo-thumb{display:block;width:100%;aspect-ratio:3 / 4;padding:0;overflow:hidden;border:1px solid rgb(var(--c-border-mid));border-radius:var(--r-card);background:rgb(var(--c-paper));box-shadow:0 1px 2px rgb(var(--c-ink-shadow) / 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.7)}.aslot-tool-shine{fill:rgb(var(--c-sheen) / .45)}.aslot-tray-btn{position:relative;display:inline-grid;place-items:center;width:1.75rem;height:1.75rem;padding:0;border:0;border-radius:999px;background:transparent;color:rgb(var(--c-text-secondary));font-size:var(--fs-sub);cursor:pointer;transition:color .18s,background-color .18s,box-shadow .18s}.aslot-tray-btn:after{content:"";position:absolute;top:-.125rem;right:-.125rem;bottom:-.125rem;left:-.125rem}.aslot-tray-btn:hover:not(:disabled){color:rgb(var(--aslot-accent));background:rgb(var(--c-paper) / .6)}.aslot-tray-btn:disabled{cursor:default;opacity:.35}.aslot-tray-rule{width:1px;height:.9rem;margin:0 .2rem;background:rgb(var(--c-border-mid))}.aslot :is(.aslot-tray-btn,.aslot-tool):focus-visible{outline:2px solid rgb(var(--aslot-accent));outline-offset:1px;border-radius:.4rem}.aslot-pad canvas[data-ink-tool=eraser],.aslot-sheet canvas[data-ink-tool=eraser],.aslot-scratch canvas[data-ink-tool=eraser]{cursor:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18'%3E%3Ccircle cx='9' cy='9' r='8' fill='rgba(30,36,50,0.06)' stroke='rgba(30,36,50,0.55)'/%3E%3C/svg%3E") 9 9,cell}.aslot :is(.aslot-seg button,.aslot-chip):focus-visible{outline:2px solid rgb(var(--aslot-accent));outline-offset:2px}.aslot-note{color:rgb(var(--c-text-tertiary));font-size:var(--fs-note)}.aslot-note.is-warn{color:rgb(var(--c-amber-ink))}@media(prefers-reduced-motion:reduce){.aslot-seg button,.aslot-chip,.aslot-field,.aslot-sheet-pages button,.aslot-tray-btn,.aslot-photo-add{transition:none}.aslot-tool:before,.aslot-tool svg{transition:none}}:root{--c-exam-accent: var(--c-accent);--c-exam-deep: var(--c-accent-deep);--c-exam-mid: var(--c-lecture-border-hover);--c-exam-frame: var(--c-border-mid);--c-exam-surface: var(--c-accent-light);--c-exam-line: var(--c-border-soft);--c-exam-wash: var(--c-bg-soft)}:root{--c-section-1: 23 155 186;--c-section-2: 26 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