:root{--ink: #141b2e;--ink-2: #232c44;--brand: #2e3cc0;--brand-strong: #2430a3;--brand-weak: #eaecfb;--seal: #dc4a33;--seal-weak: #fdeae6;--canvas: #eef1f6;--surface: #ffffff;--surface-2: #f7f9fc;--line: #e2e7f0;--line-strong: #cfd6e4;--text: #1c2433;--muted: #69728a;--on-ink: #f3f5fa;--on-ink-muted: #9aa3bd;--font-sans: "Manrope", "Noto Sans JP", system-ui, -apple-system, "Segoe UI", sans-serif;--font-mono: ui-monospace, "SF Mono", "JetBrains Mono", "Roboto Mono", "Courier New", monospace;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--radius-pill: 999px;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--space-7: 48px;--shadow-sm: 0 1px 2px rgba(20, 27, 46, .06), 0 1px 1px rgba(20, 27, 46, .04);--shadow-md: 0 4px 12px rgba(20, 27, 46, .08), 0 1px 3px rgba(20, 27, 46, .06);--shadow-lg: 0 18px 48px rgba(20, 27, 46, .16), 0 4px 12px rgba(20, 27, 46, .08);--ease: cubic-bezier(.2, .7, .2, 1);font-family:var(--font-sans);line-height:1.5;font-weight:400;color:var(--text);background-color:var(--canvas);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{margin:0;padding:0;min-width:320px;min-height:100vh;background-color:var(--canvas)}#root{width:100%;height:100vh}h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--text)}button{font-family:inherit}.eyebrow{font-family:var(--font-mono);font-size:11px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}.data{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.01em}:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:var(--radius-sm)}*{scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent}*::-webkit-scrollbar{width:10px;height:10px}*::-webkit-scrollbar-thumb{background-color:var(--line-strong);border:3px solid 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var(--line);border-radius:var(--radius-pill);box-shadow:var(--shadow-lg)}.zoom-button{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border:none;background-color:transparent;color:var(--text);cursor:pointer;border-radius:var(--radius-pill);transition:background-color .15s var(--ease),color .15s var(--ease)}.zoom-button:hover{background-color:var(--brand-weak);color:var(--brand)}.zoom-value{min-width:52px;text-align:center;font-size:13px;font-weight:600;color:var(--text)}.page-thumbnail-sidebar{width:224px;flex-shrink:0;height:100%;background-color:var(--surface);border-right:1px solid var(--line);overflow-y:auto;padding:var(--space-4)}.sidebar-header{display:flex;align-items:center;gap:var(--space-2);margin-bottom:var(--space-4);padding-bottom:var(--space-3);border-bottom:1px solid 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1.414;display:flex;align-items:center;justify-content:center;background-color:var(--surface-2)}.thumbnail-image{max-width:100%;max-height:100%;object-fit:contain}.thumbnail-loading{color:var(--muted);font-size:12px}.thumbnail-footer{display:flex;justify-content:space-between;align-items:center;padding:var(--space-2) var(--space-3);border-top:1px solid var(--line);background-color:var(--surface)}.page-number{font-size:12px;font-weight:600;color:var(--muted)}.thumbnail-item.active .page-number{color:var(--brand)}.page-checkbox{width:16px;height:16px;cursor:pointer;accent-color:var(--seal)}@media (max-width: 768px){.page-thumbnail-sidebar{width:100%;border-right:none;border-bottom:1px solid var(--line)}.thumbnail-list{flex-direction:row;overflow-x:auto;padding-bottom:var(--space-2)}.thumbnail-item{flex:0 0 140px}}.editing-toolbar{width:248px;flex-shrink:0;background-color:var(--surface);border-left:1px solid var(--line);padding:var(--space-5) 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svg{color:var(--brand);flex-shrink:0}.drop-overlay{position:absolute;inset:0;z-index:50;display:flex;align-items:center;justify-content:center;padding:var(--space-5);background-color:#141b2e8c;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);animation:fade .15s var(--ease) both}.drop-overlay-inner{display:flex;flex-direction:column;align-items:center;gap:var(--space-3);padding:var(--space-7);width:min(640px,100%);color:#fff;border:2px dashed rgba(255,255,255,.6);border-radius:var(--radius-lg);font-size:18px;font-weight:700}@keyframes rise{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes fade{0%{opacity:0}to{opacity:1}}@media (max-width: 768px){.app-bar{padding:0 var(--space-4);gap:var(--space-2)}.brand-name{font-size:15px}.app-bar-actions{gap:var(--space-2)}.open-button,.export-button{white-space:nowrap}.workspace{flex-direction:column;overflow-y:auto}.stage{min-height:70vh}.empty-card{padding:var(--space-6) var(--space-5)}.empty-title{font-size:22px}}@media (max-width: 560px){.brand-badge,.btn-label{display:none}.open-button,.export-button{padding:9px}}