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14px;font-size:.95rem;font-weight:600;transition:background .12s,border-color .12s;display:inline-flex;position:relative}.btn:disabled{opacity:.5;cursor:default}.btn:focus-visible,.icon-btn:focus-visible,.title-input:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.btn-primary{background:var(--accent);color:var(--accent-ink)}.btn-primary:hover:not(:disabled){background:#1b38a6}.btn-secondary{background:var(--surface);border-color:var(--line)}.btn-secondary:hover:not(:disabled){border-color:#c9c6bb}.btn-ghost{color:var(--ink);background:0 0}.btn-ghost:hover:not(:disabled){background:#1d22300f}.btn:focus-within:has(input:focus-visible){outline:2px solid var(--accent);outline-offset:2px}.icon-btn{cursor:pointer;background:0 0;border:0;border-radius:999px;place-items:center;width:32px;height:32px;display:inline-grid}.icon-btn:hover{background:#1d223014}.icon-btn svg{fill:none;stroke:currentColor;stroke-width:2.2px;stroke-linecap:round;stroke-linejoin:round;width:18px;height:18px}.topbar{z-index:20;min-height:var(--topbar-h);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);background:#fffffff0;align-items:center;gap:12px;padding:8px 16px;display:flex;position:sticky;top:0}.brand{color:var(--ink);letter-spacing:-.01em;align-items:center;gap:8px;font-weight:700;text-decoration:none;display:inline-flex}.brand-mark{background:var(--accent);color:#fff;border-radius:7px;place-items:center;width:28px;height:28px;font-size:17px;line-height:1;display:inline-grid}.title-input{background:0 0;border:1px solid #0000;border-radius:8px;flex:200px;min-width:0;height:38px;padding:0 10px;font-size:1.05rem;font-weight:600}.title-input:hover:not(:disabled){border-color:var(--line)}.title-input:focus{background:var(--surface);border-color:var(--accent);outline:none}.topbar-actions{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.paper{color:var(--ink-soft);align-items:center;gap:6px;font-size:.9rem;display:inline-flex}.paper select{border:1px solid var(--line);background:var(--surface);height:38px;color:var(--ink);border-radius:8px;padding:0 8px}.save-state{min-width:9.5em;color:var(--ink-soft);font-size:.85rem}.save-state.is-error{color:var(--danger)}.save-state.is-saved:before{content:"✓ ";color:var(--ok)}.main{padding:20px 16px 64px}.intro{max-width:820px;margin:0 auto 20px}.value-prop{letter-spacing:-.015em;text-align:center;margin:4px 0 16px;font-size:clamp(1.25rem,2.6vw,1.7rem);font-weight:700;line-height:1.25}.dropzone{background:var(--surface);text-align:center;border:2px dashed #c9c6bb;border-radius:14px;flex-direction:column;align-items:center;gap:10px;padding:22px 16px;transition:border-color .12s,background .12s;display:flex}.dropzone.is-over{border-color:var(--accent);background:var(--accent-soft)}.dropzone-icon{fill:none;width:34px;height:34px;stroke:var(--accent);stroke-width:1.6px;stroke-linejoin:round}.dropzone-title{margin:0;font-size:1.05rem;font-weight:600}.dropzone-actions{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.dropzone-hint{color:var(--ink-soft);margin:0;font-size:.85rem}.camera-only{display:none}@media (pointer:coarse){.camera-only{display:inline-flex}}.consent{color:var(--ink-soft);align-items:flex-start;gap:8px;margin:10px 4px 0;font-size:.85rem;display:flex}.consent input{accent-color:var(--accent);margin-top:3px}.scan-status{border-radius:var(--radius);background:var(--surface);border:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:12px;max-width:820px;margin:0 auto 20px;padding:12px 16px;display:flex}.scan-status p{flex:240px;margin:0}.scan-status.is-error{background:var(--danger-soft);color:var(--danger);border-color:#f2c4bf}.scan-status-actions{gap:8px;display:flex}.progress{background:var(--accent-soft);border-radius:999px;flex:160px;height:6px;overflow:hidden}.progress>span{background:var(--accent);height:100%;transition:width .2s;display:block}.progress.is-indeterminate>span{width:35%;animation:1.2s ease-in-out infinite progress-slide}@keyframes progress-slide{0%{transform:translate(-100%)}to{transform:translate(300%)}}@media (prefers-reduced-motion:reduce){.progress.is-indeterminate>span{opacity:.5;width:100%;animation:none}}.workspace{grid-template-columns:minmax(0,1fr);justify-content:center;gap:20px;display:grid}.workspace.is-reviewing{grid-template-columns:minmax(0,1fr) minmax(260px,30%);align-items:start}@media (max-width:900px){.workspace.is-reviewing{grid-template-columns:minmax(0,1fr)}}.editor-col{min-width:0}.editor-host{min-height:60px}.editor-loading{text-align:center;color:var(--ink-soft);margin:40px auto}.review-bar{top:calc(var(--topbar-h) + 8px);z-index:15;background:var(--surface);border:1px solid var(--line);border-radius:999px;align-items:center;gap:8px;width:fit-content;max-width:100%;margin:0 auto 14px;padding:6px 8px 6px 14px;display:flex;position:sticky;box-shadow:0 4px 16px #1d223014}.spots-chip{color:var(--warn);font-weight:600}.spots-chip:before{content:"";vertical-align:0;background:#ffd84d;border-radius:3px;width:10px;height:10px;margin-right:8px;display:inline-block}.spots-chip.is-done{color:var(--ok)}.spots-chip.is-done:before{background:#3bb36b}.spots-nav{display:inline-flex}.review-done{border-radius:999px;min-height:32px}.source-panel{top:calc(var(--topbar-h) + 16px);max-height:calc(100vh - var(--topbar-h) - 32px);border-radius:var(--radius);background:var(--surface);border:1px solid var(--line);padding:12px;position:sticky;overflow:auto}@media (max-width:900px){.source-panel{max-height:none;position:static}}.source-panel h2{color:var(--ink-soft);margin:0 0 10px;font-size:.95rem}.source-img{border:1px solid var(--line);border-radius:6px;width:100%;height:auto;margin-bottom:10px;display:block}.source-pdf{border:1px solid var(--line);border-radius:6px;width:100%;height:70vh}.spot-popover{z-index:40;border-radius:var(--radius);background:var(--surface);border:1px solid var(--line);width:min(320px,100vw - 16px);padding:12px;position:fixed;box-shadow:0 10px 30px #1d22302e}.spot-popover-title{margin:0 0 8px;font-weight:600}.spot-field input,.spot-math{border:1px solid var(--line);border-radius:8px;width:100%;min-height:38px;margin-bottom:10px;padding:6px 10px;display:block}.spot-actions{flex-wrap:wrap;gap:8px;display:flex}@media print{html,body{background:#fff}.app-chrome{display:none!important}.main{padding:0}.workspace,.workspace.is-reviewing{display:block}}@media (max-width:640px){.topbar{flex-wrap:wrap;gap:6px;padding:6px 10px}.brand-name{display:none}.title-input{flex-basis:calc(100% - 44px)}.topbar-actions{justify-content:space-between;width:100%}.paper-label{display:none}.save-state{min-width:0}.main{padding:12px 10px 48px}}