:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#faf8f5;--panel:#f3f0ed;--line:#c9cee2;--text:#000;--muted:#586780;--primary:#191d75;--primary-soft:#e8ebfa;--danger:#b3261e;--danger-soft:#fde8e7;--selected:#eaf4ff;--select:#191d75;--select-soft:#eaedfb;--export:#191d75;--export-soft:#eaedfb;--viewer:#fff;--viewer-soft:#27251f;--spread:#191d75;--spread-soft:#eaedfb;--blank:#1f266c;--blank-soft:#eceffd}*{box-sizing:border-box}body{color:var(--text);background:var(--bg);margin:0;font-family:Hiragino Kaku Gothic ProN,Yu Gothic,Meiryo,sans-serif}.app{max-width:1200px;margin:0 auto;padding:24px}.topbar h1{letter-spacing:.01em;text-align:center;color:#27251f;margin:0;font-family:Hiragino Kaku Gothic ProN,Yu Gothic,Meiryo,sans-serif;font-size:2.5rem;font-weight:600}.lang-bar{color:#27251f;justify-content:flex-end;align-items:center;gap:8px;margin-bottom:4px;font-size:.86rem;display:flex}.lang-pill{background:#fff;border:1px solid #bfc4d8;border-radius:999px;display:inline-flex;overflow:hidden}.lang-pill-btn{color:#27251f;cursor:pointer;background:0 0;border:0;padding:6px 12px;font-size:.82rem}.lang-pill-btn.is-active{color:#fff;background:#27251f}.topbar{color:#27251f;box-shadow:none;background:0 0;border:0;border-bottom:2px solid #27251f;border-radius:0;margin-bottom:18px;padding:8px 0 12px}.topbar p{display:none}.top-open-btn{margin-bottom:8px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:16px;margin-bottom:12px;padding:14px;box-shadow:0 4px 12px #141e320a}.file-picker{color:#fff;cursor:pointer;background:#27251f;border:1px solid #27251f;border-radius:12px;align-items:center;gap:10px;padding:8px 12px;font-weight:700;display:inline-flex}.file-picker input,.hidden{display:none}.start-screen{text-align:center;padding:28px}.start-controls{flex-wrap:wrap;justify-content:center;align-items:center;gap:14px;margin-bottom:12px;display:flex}.start-controls .file-picker{padding:12px 18px;font-size:1.05rem}.preview-toggle{color:#000;-webkit-user-select:none;user-select:none;cursor:pointer;align-items:center;gap:10px;margin-top:0;font-size:.96rem;display:inline-flex}.preview-toggle input{opacity:0;width:1px;height:1px;position:absolute}.preview-switch{background:#faf8f5;border:1px solid #ece6de;border-radius:999px;align-items:center;width:56px;height:32px;padding:2px;transition:background-color .12s;display:inline-flex}.preview-knob{background:#fff;border-radius:50%;width:26px;height:26px;transition:transform .12s;transform:translate(0);box-shadow:0 1px 3px #00000026}.preview-toggle input:checked+.preview-switch{background:#27251f;border-color:#27251f}.preview-toggle input:checked+.preview-switch .preview-knob{transform:translate(24px)}.preview-toggle-text{font-weight:600}.preview-note{color:var(--muted);margin-top:0;font-size:.84rem}.primary-actions{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px;margin-top:10px;display:grid}.hint{color:var(--muted);margin-bottom:10px;font-size:.9rem}.section-title{margin:4px 0 8px;font-size:.96rem;font-weight:700}.actions{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:8px;margin-bottom:12px;display:grid}.primary-actions button,.actions button,.spread-controls button,.blank-controls button{border:1px solid var(--line);min-height:48px;color:var(--text);cursor:pointer;touch-action:manipulation;background:#fff;border-radius:999px;padding:12px 14px;font-weight:600}.primary-actions button:hover,.actions button:hover,.spread-controls button:hover,.blank-controls button:hover{border-color:#98a8bf}.primary-actions button:disabled,.actions button:disabled,.spread-controls button:disabled,.blank-controls button:disabled{opacity:.45;cursor:not-allowed;transform:none}.btn-select{background:var(--select-soft);color:var(--select);border-color:#b9dfbf}.btn-export{background:var(--export-soft);color:var(--export);border-color:#bfd4ec}.btn-viewer{background:var(--viewer-soft);color:var(--viewer);border-color:#27251f}.btn-spread{background:var(--spread-soft);color:var(--spread);border-color:#e8d2ad}.btn-danger{color:#8d1410;background:#f9dfdd;border-color:#d88a86}.btn-blank{background:var(--blank-soft);color:var(--blank);border-color:#cfd5de}.blank-controls,.range-split-controls{background:var(--panel);border:1px solid var(--line);border-radius:12px;margin-bottom:12px;padding:10px}.range-help{color:var(--muted);margin-bottom:8px;font-size:.82rem}.blank-title{margin-bottom:8px;font-size:.92rem;font-weight:700}.blank-input-row{grid-template-columns:auto 160px;align-items:center;gap:8px;margin-bottom:8px;display:grid}.blank-input-row label{color:var(--muted);font-size:.86rem}.blank-input-row input{border:1px solid var(--line);background:#fff;border-radius:10px;width:100%;min-height:46px;padding:12px}.spread-controls{grid-template-columns:1fr 1fr;align-items:center;gap:8px;display:grid}.spread-controls label{color:var(--muted);grid-column:1/2;font-size:.9rem}.spread-controls select{border:1px solid var(--line);background:#fff;border-radius:10px;width:100%;min-height:46px;padding:12px}.spread-controls button{width:100%}.status{color:var(--muted);margin-top:10px;font-size:.95rem}.pages{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px;display:grid}.page-card{border:2px solid var(--line);cursor:grab;background:#fff;border-radius:12px;padding:8px;transition:transform .12s,border-color .12s}.page-card:active{cursor:grabbing}.page-card:hover{transform:translateY(-2px)}.page-card.selected{background:var(--selected);border-color:#66a1dd}.page-index{margin-bottom:6px;font-size:.9rem;font-weight:700}.page-original{color:var(--muted);margin-bottom:6px;font-size:.8rem}.page-card canvas{background:#fafcff;border:1px solid #ebeff5;width:100%;height:auto}.page-thumb-off{color:#65768d;text-align:center;background:#f8fafc;border:1px dashed #c6cdd8;border-radius:8px;justify-content:center;align-items:center;width:100%;min-height:140px;padding:8px;font-size:.8rem;display:flex}@media (width<=700px){.app{padding:12px}.topbar h1{font-size:2.2rem}.spread-controls{grid-template-columns:1fr}.spread-controls label{grid-column:auto}.blank-input-row,.primary-actions,.actions{grid-template-columns:1fr}.panel{border-radius:14px;padding:12px}}