:root{color-scheme:light dark;--bg: #f6f7f9;--surface: #ffffff;--surface-2: #eef0f4;--text: #1b1f24;--text-muted: #5c6470;--border: #d5dae2;--accent: #2563eb;--accent-text: #ffffff;--danger: #dc2626;--ok: #16a34a;--shadow: 0 1px 3px rgba(0, 0, 0, .08)}@media(prefers-color-scheme:dark){:root{--bg: #14171b;--surface: #1e2228;--surface-2: #272c34;--text: #e7eaee;--text-muted: #9aa3af;--border: #3a414c;--accent: #3b82f6;--danger: #f87171;--ok: #4ade80;--shadow: 0 1px 3px rgba(0, 0, 0, .4)}}*{box-sizing:border-box}body{margin:0;font-family:Hiragino Kaku Gothic ProN,Hiragino Sans,BIZ UDPGothic,Meiryo,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}.app{max-width:860px;margin:0 auto;padding:24px 16px 48px}.header{text-align:center}.header h1{font-size:1.5rem;margin:0 0 4px}.header__privacy{margin:0 0 20px;font-size:.85rem;color:var(--text-muted)}.dropzone{border:2px dashed var(--border);border-radius:12px;background:var(--surface);padding:40px 16px;text-align:center;cursor:pointer;transition:border-color .15s,background .15s}.dropzone:hover,.dropzone:focus-visible,.dropzone--active{border-color:var(--accent);background:var(--surface-2);outline:none}.dropzone--compact{padding:12px 16px;display:flex;align-items:center;justify-content:center;gap:8px}.dropzone__icon{font-size:2rem}.dropzone--compact .dropzone__icon{font-size:1.2rem;color:var(--accent);font-weight:700}.dropzone__text{margin:8px 0 0}.dropzone--compact .dropzone__text{margin:0;font-size:.9rem}.dropzone__hint{margin:4px 0 0;font-size:.8rem;color:var(--text-muted)}.toolbar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;margin:16px 0 8px}.toolbar__info{font-size:.9rem;color:var(--text-muted)}.toolbar__actions{display:flex;gap:8px}.file-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.card{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:10px 12px;box-shadow:var(--shadow)}.card--dragging{opacity:.6;z-index:10;position:relative}.card--error{border-color:var(--danger)}.card__handle{cursor:grab;border:none;background:none;color:var(--text-muted);font-size:1.1rem;padding:8px 4px;touch-action:none}.card__handle:active{cursor:grabbing}.card__order{min-width:1.6em;text-align:center;font-weight:700;color:var(--text-muted);font-size:.9rem}.card__thumb{position:relative;width:56px;height:74px;flex-shrink:0;display:flex;align-items:center;justify-content:center;background:var(--surface-2);border:1px solid var(--border);border-radius:4px;overflow:hidden;padding:0;cursor:zoom-in}.card__thumb:disabled{cursor:default}.card__thumb-zoom{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:1.2rem;background:#00000059;opacity:0;transition:opacity .15s}.card__thumb:hover .card__thumb-zoom,.card__thumb:focus-visible .card__thumb-zoom{opacity:1}.card__thumb img{max-width:100%;max-height:100%;transition:transform .2s}.card__thumb-placeholder{color:var(--text-muted)}.card__body{flex:1;min-width:0}.card__name{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.card__meta{font-size:.8rem;color:var(--text-muted)}.card__error{font-size:.85rem;color:var(--danger)}.card__range{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-top:4px;font-size:.8rem}.card__range label{display:flex;align-items:center;gap:6px;color:var(--text-muted)}.card__range input{width:160px}.card__range-error{color:var(--danger)}.card__range-count{color:var(--text-muted)}.card__actions{display:flex;flex-direction:column;gap:6px}.card__actions button{min-width:40px;min-height:40px;font-size:1.1rem;padding:6px 10px}.card__actions button.card__rotate{padding:0;display:flex;align-items:center;justify-content:center}@media(min-width:560px){.card__actions{flex-direction:row}}input[type=text]{background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:4px 8px;font-size:.9rem}input[type=text]:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.input--invalid{border-color:var(--danger)}button{font-family:inherit;font-size:.85rem;border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:6px;padding:5px 10px;cursor:pointer}button:hover:not(:disabled){background:var(--surface-2)}button:disabled{opacity:.45;cursor:default}.btn-danger{color:var(--danger)}.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--accent-text);font-size:1rem;font-weight:600;padding:10px 20px}.btn-primary:hover:not(:disabled){background:var(--accent);filter:brightness(1.1)}.merge-bar{display:flex;align-items:flex-end;flex-wrap:wrap;gap:12px;margin-top:20px;padding:16px;background:var(--surface);border:1px solid var(--border);border-radius:10px}.merge-bar__name{display:flex;flex-direction:column;gap:4px;font-size:.85rem;color:var(--text-muted);flex:1;min-width:200px}.merge-bar__name input{font-size:1rem;padding:8px 10px}.status{margin-top:12px;padding:10px 14px;border-radius:8px;font-size:.9rem}.status--ok{background:color-mix(in srgb,var(--ok) 12%,transparent);color:var(--ok)}.status--error{background:color-mix(in srgb,var(--danger) 12%,transparent);color:var(--danger)}.viewer-overlay{position:fixed;inset:0;background:#0009;display:flex;align-items:center;justify-content:center;padding:20px;z-index:100}.viewer{background:var(--surface);border-radius:12px;width:min(1000px,100%);height:100%;max-height:calc(100vh - 40px);display:flex;flex-direction:column;overflow:hidden;box-shadow:0 10px 40px #00000059}.viewer__header{display:flex;align-items:center;gap:12px;padding:10px 14px;border-bottom:1px solid var(--border);flex-wrap:wrap}.viewer__title{flex:1;min-width:120px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.viewer__nav,.viewer__zoom{display:flex;align-items:center;gap:6px}.viewer__page-indicator{font-size:.9rem;color:var(--text-muted);min-width:4em;text-align:center}.viewer__zoom-reset{min-width:4em}.viewer__body{flex:1;overflow:auto;display:flex;padding:20px;background:var(--surface-2);cursor:grab;user-select:none}.viewer__body--panning{cursor:grabbing}.viewer__page{margin:auto}.viewer__page canvas{display:block;box-shadow:0 2px 12px #00000040;background:#fff}.viewer__message{margin:auto;color:var(--text-muted)}.viewer__footer{padding:6px 14px;font-size:.75rem;color:var(--text-muted);border-top:1px solid var(--border);text-align:center}.footer{margin-top:32px;font-size:.8rem;color:var(--text-muted);border-top:1px solid var(--border);padding-top:12px}.tabs{display:flex;gap:4px;margin-bottom:16px;border-bottom:2px solid var(--border)}.tab{flex:1;border:none;background:none;border-radius:8px 8px 0 0;padding:8px 18px;font-size:.95rem;color:var(--text-muted);margin-bottom:-2px;border-bottom:2px solid transparent}.tab:hover:not(.tab--active){background:var(--surface-2)}.tab--active{color:var(--accent);font-weight:600;border-bottom-color:var(--accent)}.edit-toolbar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;padding:10px 12px;background:var(--surface);border:1px solid var(--border);border-radius:10px;margin-bottom:10px;position:sticky;top:8px;z-index:20;box-shadow:var(--shadow)}.edit-toolbar__group{display:flex;align-items:center;gap:6px;min-width:0}.edit-toolbar__page,.edit-toolbar__zoom{font-size:.85rem;color:var(--text-muted);min-width:3.2em;text-align:center}.edit-toolbar__name{font-size:.85rem;color:var(--text-muted);max-width:160px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.edit-panel{display:flex;align-items:flex-end;flex-wrap:wrap;gap:12px;padding:12px;background:var(--surface);border:1px solid var(--border);border-radius:10px;margin-bottom:10px}.edit-panel label{display:flex;flex-direction:column;gap:4px;font-size:.8rem;color:var(--text-muted)}.edit-panel input[type=number]{width:5em;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:4px 8px}.edit-panel input[type=color]{width:44px;height:30px;padding:2px;border:1px solid var(--border);border-radius:6px;background:var(--surface)}.edit-panel select,.edit-panel textarea{font-family:inherit;font-size:.9rem;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:4px 8px}.edit-panel textarea{min-width:220px;resize:vertical}.edit-scroll{overflow:auto;max-height:calc(100vh - 60px);border:1px solid var(--border);border-radius:10px;background:var(--surface-2);padding:16px}.edit-stage{position:relative;margin:0 auto}.edit-stage__page canvas{display:block;box-shadow:0 2px 12px #00000040;background:#fff}.edit-stage__overlay{position:absolute;inset:0}.edit-el{position:absolute;cursor:move;touch-action:none}.edit-el img{width:100%;height:100%;display:block;user-select:none;-webkit-user-drag:none}.edit-el--selected{outline:2px solid var(--accent);outline-offset:1px}.edit-el__delete{position:absolute;top:-14px;right:-14px;width:24px;height:24px;min-width:0;min-height:0;padding:0;border-radius:50%;font-size:.75rem;line-height:1;background:var(--surface);color:var(--danger);box-shadow:var(--shadow)}.edit-el__resize{position:absolute;right:-7px;bottom:-7px;width:14px;height:14px;border-radius:50%;background:var(--accent);border:2px solid var(--surface);cursor:nwse-resize;touch-action:none}.edit-hint{font-size:.8rem;color:var(--text-muted);margin:10px 0 0}.pgrid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px}.pcard{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:8px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:6px}.pcard--dragging{opacity:.6;z-index:10;position:relative}.pcard__thumb{width:100%;aspect-ratio:3 / 4;display:flex;align-items:center;justify-content:center;background:var(--surface-2);border:1px solid var(--border);border-radius:6px;overflow:hidden;padding:4px;cursor:grab;touch-action:none}.pcard__thumb:active{cursor:grabbing}.pcard__thumb img{max-width:100%;max-height:100%;transition:transform .2s}.pcard__loading{color:var(--text-muted)}.pcard__bar{display:flex;align-items:center;gap:6px}.pcard__order{font-size:.8rem;font-weight:700;color:var(--text-muted);min-width:1.5em;text-align:center}.pcard__name{flex:1;font-size:.72rem;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}.pcard__bar button{padding:3px 8px;font-size:.85rem}.pcard__bar button:first-of-type{margin-left:auto}.split-options{display:flex;flex-direction:column;gap:8px;margin-bottom:12px}.split-option{display:flex;align-items:center;flex-wrap:wrap;gap:10px;padding:12px 14px;background:var(--surface);border:1px solid var(--border);border-radius:10px;cursor:pointer}.split-option--active{border-color:var(--accent);outline:1px solid var(--accent)}.split-option__title{font-weight:600;display:flex;align-items:center;gap:6px}.split-option__title input[type=number]{width:4em;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:4px 8px}.split-option__desc{font-size:.8rem;color:var(--text-muted)}.split-option input[type=text]{flex:1;min-width:220px}.merge-bar__summary{flex:1;font-size:.9rem;color:var(--text-muted);align-self:center}.subtabs{display:flex;gap:8px;margin-bottom:14px}.subtab{padding:6px 16px;border-radius:999px;font-size:.9rem}.subtab--active{background:var(--accent);border-color:var(--accent);color:var(--accent-text);font-weight:600}.radio-inline{display:flex;align-items:center;gap:4px;font-size:.85rem;color:var(--text-muted);cursor:pointer}