:root{color-scheme:light dark;--bg: #f6f7f9;--surface: #ffffff;--border: #d8dde6;--border-strong: #b8c0ce;--text: #1a1f2a;--text-muted: #5c6575;--primary: #1f4b99;--primary-hover: #163a78;--primary-text: #ffffff;--danger: #9b1c1c;--radius: 10px;--shadow: 0 1px 2px rgb(0 0 0 / 6%);--font: "Segoe UI", system-ui, -apple-system, sans-serif;--tile-min: 148px;--merge-bar-space: 5.5rem}@media(prefers-color-scheme:dark){:root{--bg: #12151c;--surface: #1c212b;--border: #2e3645;--border-strong: #465064;--text: #eef1f6;--text-muted: #9aa3b5;--primary: #6b9cff;--primary-hover: #8bb0ff;--primary-text: #0d1220;--danger: #f0a0a0;--shadow: 0 1px 2px rgb(0 0 0 / 35%)}}*,*:before,*:after{box-sizing:border-box}html,body,#root{margin:0;min-height:100%}body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.45}button,input{font:inherit}.app{max-width:1080px;margin:0 auto;padding:2rem 1.25rem calc(var(--merge-bar-space) + 1.5rem)}.app__header h1{margin:0 0 .5rem;font-size:1.65rem;font-weight:650;letter-spacing:-.02em}.app__privacy{margin:0 0 1.5rem;color:var(--text-muted);font-size:.95rem}.app__main{display:flex;flex-direction:column;gap:1.25rem}.app__notice{margin:0;padding:.65rem .85rem;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);color:var(--text-muted);font-size:.9rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.35rem;border-radius:8px;border:1px solid transparent;padding:.55rem .95rem;cursor:pointer;font-weight:560;transition:background .12s ease,border-color .12s ease,opacity .12s ease}.btn:disabled{opacity:.55;cursor:not-allowed}.btn--primary{background:var(--primary);color:var(--primary-text)}.btn--primary:hover:not(:disabled){background:var(--primary-hover)}.btn--ghost{background:transparent;border-color:var(--border);color:var(--text)}.btn--ghost:hover:not(:disabled){border-color:var(--border-strong);background:color-mix(in srgb,var(--surface) 70%,var(--bg))}.btn--sm{padding:.35rem .7rem;font-size:.875rem;font-weight:500}.dropzone{border:1.5px dashed var(--border-strong);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);padding:1.25rem;text-align:center}.dropzone--disabled{opacity:.65}.dropzone__title{margin:0;font-size:1.05rem;font-weight:600}.dropzone__hint{margin:.35rem 0 1rem;color:var(--text-muted);font-size:.9rem}.dropzone__actions{display:flex;flex-wrap:wrap;gap:.6rem;justify-content:center}.global-drop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;display:grid;place-items:center;padding:1.5rem;background:color-mix(in srgb,var(--primary) 18%,transparent);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);pointer-events:none}.global-drop__panel{max-width:28rem;width:100%;padding:1.75rem 1.5rem;border:2px dashed var(--primary);border-radius:14px;background:color-mix(in srgb,var(--surface) 92%,var(--primary));box-shadow:0 12px 40px #0000002e;text-align:center}.global-drop__title{margin:0;font-size:1.2rem;font-weight:650}.global-drop__hint{margin:.4rem 0 0;color:var(--text-muted);font-size:.9rem}.pdf-list__empty{margin:0;color:var(--text-muted);font-size:.95rem}.pdf-list__header{display:flex;align-items:baseline;justify-content:space-between;gap:.75rem;margin-bottom:.75rem}.pdf-list__header h2{margin:0;font-size:1.05rem;font-weight:600;display:flex;flex-wrap:wrap;gap:.5rem;align-items:baseline}.pdf-list__count{color:var(--text-muted);font-size:.85rem;font-weight:500}.pdf-list__grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(var(--tile-min),1fr));gap:.75rem}.pdf-tile{position:relative;display:flex;flex-direction:column;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);overflow:hidden;min-width:0}.pdf-tile--dragging{opacity:.95;box-shadow:0 10px 28px #00000029;z-index:2}.pdf-tile--sortable{cursor:grab;touch-action:none}.pdf-tile--sortable:active{cursor:grabbing}.pdf-tile__handle{position:absolute;top:.4rem;left:.4rem;z-index:2;display:inline-flex;align-items:center;justify-content:center;width:1.6rem;height:1.6rem;border:1px solid var(--border);border-radius:6px;background:color-mix(in srgb,var(--surface) 88%,transparent);color:var(--text-muted);pointer-events:none}.pdf-tile__badge{position:absolute;top:.4rem;right:2.15rem;z-index:2;min-width:1.5rem;height:1.5rem;padding:0 .35rem;border-radius:999px;background:var(--primary);color:var(--primary-text);font-size:.75rem;font-weight:650;font-variant-numeric:tabular-nums;display:inline-flex;align-items:center;justify-content:center;box-shadow:0 1px 3px #0000002e}.pdf-tile__remove{position:absolute;top:.4rem;right:.4rem;z-index:2;display:inline-flex;align-items:center;justify-content:center;width:1.6rem;height:1.6rem;border:1px solid var(--border);border-radius:6px;background:color-mix(in srgb,var(--surface) 88%,transparent);color:var(--text-muted);cursor:pointer;padding:0}.pdf-tile__remove:hover:not(:disabled){color:var(--danger);border-color:color-mix(in srgb,var(--danger) 40%,var(--border))}.pdf-tile__remove:disabled{cursor:not-allowed;opacity:.55}.pdf-tile__thumb{aspect-ratio:3 / 4;background:color-mix(in srgb,var(--bg) 70%,var(--surface));display:flex;align-items:center;justify-content:center;-webkit-user-select:none;user-select:none}.pdf-tile__thumb img{width:100%;height:100%;object-fit:contain;object-position:center top;background:#fff;pointer-events:none}.pdf-tile__placeholder{display:grid;place-items:center;width:100%;height:100%;color:var(--text-muted);opacity:.55}.pdf-tile__meta{padding:.5rem .55rem .6rem;border-top:1px solid var(--border);min-width:0;display:flex;flex-direction:column;gap:.1rem}.pdf-tile__name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:560;font-size:.8rem}.pdf-tile__details{color:var(--text-muted);font-size:.72rem;font-variant-numeric:tabular-nums}.merge-bar{position:fixed;bottom:0;left:0;right:0;z-index:50;padding:.85rem 1.25rem calc(.85rem + env(safe-area-inset-bottom,0px));border-top:1px solid var(--border);background:color-mix(in srgb,var(--surface) 92%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 -6px 20px #0000000f}.merge-bar__inner{max-width:1080px;margin:0 auto}.merge-bar__label{display:block;margin-bottom:.35rem;font-size:.8rem;font-weight:560;color:var(--text-muted)}.merge-bar__row{display:flex;flex-wrap:wrap;gap:.6rem}.merge-bar__input{flex:1 1 12rem;min-width:0;border:1px solid var(--border);border-radius:8px;padding:.55rem .75rem;background:var(--bg);color:var(--text)}.merge-bar__input:focus{outline:2px solid color-mix(in srgb,var(--primary) 55%,transparent);outline-offset:1px}.merge-bar__error{margin:.55rem 0 0;color:var(--danger);font-size:.9rem}.merge-bar__status{margin:.55rem 0 0;color:var(--text-muted);font-size:.9rem}@media(max-width:520px){.app{padding:1.35rem 1rem calc(var(--merge-bar-space) + 1.25rem)}.merge-bar{padding-left:1rem;padding-right:1rem}:root{--tile-min: 132px}}