:root{--bg: #0f1115;--surface: #171a21;--surface-2: #1f242e;--border: #2a313d;--text: #e7ebf0;--muted: #9aa4b2;--primary: #4f8cff;--primary-strong: #2f6fe0;--added: #2bb673;--added-soft: rgba(43, 182, 115, .18);--removed: #e0484f;--removed-soft: rgba(224, 72, 79, .18);--radius: 12px;--shadow: 0 8px 30px rgba(0, 0, 0, .35);color-scheme:dark}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:radial-gradient(1200px 600px at 80% -10%,#1b2230 0%,var(--bg) 55%);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:15px;line-height:1.5}.app{display:flex;flex-direction:column;min-height:100%}.topbar{padding:22px 32px;border-bottom:1px solid var(--border);background:#0f111599;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:space-between;gap:16px}.topbar__user{display:flex;align-items:center;gap:12px;flex:none}.btn--small{padding:7px 12px;font-size:13px}.app--center{display:flex;align-items:center;justify-content:center;min-height:100vh}.login{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.login__card{width:100%;max-width:380px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:14px}.login__brand{display:flex;align-items:center;gap:12px}.login__brand h1{font-size:18px;margin:0}.login__hint{margin:0 0 4px;font-size:14px}.login__field{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}.login__field input{background:var(--surface-2);border:1px solid var(--border);border-radius:8px;padding:11px 12px;font-size:15px;color:var(--text)}.login__field input:focus{outline:none;border-color:var(--primary)}.login__error{color:var(--removed);background:var(--removed-soft);border-radius:8px;padding:10px 12px;font-size:13px;margin:0}.login__submit{margin-top:6px}.brand{display:flex;align-items:center;gap:16px}.brand__mark{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--added));box-shadow:var(--shadow);flex:none}.brand h1{margin:0;font-size:19px;letter-spacing:.2px}.brand p{margin:2px 0 0;color:var(--muted);font-size:13px}.container{flex:1;width:100%;max-width:1280px;margin:0 auto;padding:32px}.muted{color:var(--muted)}.warn{color:#e6b34a;font-size:13px}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--border);background:var(--surface-2);color:var(--text);padding:10px 18px;border-radius:10px;font-size:14px;cursor:pointer;transition:background .15s,border-color .15s,transform .05s}.btn:hover{border-color:#3a4452}.btn:active{transform:translateY(1px)}.btn--primary{background:linear-gradient(180deg,var(--primary),var(--primary-strong));border-color:transparent;font-weight:600}.btn--primary:disabled{opacity:.45;cursor:not-allowed}.uploader{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}.uploader__grid{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px}.uploader__vs{color:var(--muted);font-weight:600;text-transform:uppercase;font-size:12px}.filedrop{display:flex;flex-direction:column;gap:6px;border:1.5px dashed var(--border);border-radius:var(--radius);padding:28px 22px;cursor:pointer;text-align:center;transition:border-color .15s,background .15s;background:var(--surface-2)}.filedrop input{display:none}.filedrop--hover{border-color:var(--primary);background:#4f8cff14}.filedrop--set{border-style:solid;border-color:var(--added)}.filedrop__label{font-weight:600}.filedrop__name{color:var(--muted);font-size:13px;word-break:break-all}.uploader__controls{display:flex;justify-content:space-between;align-items:center;margin-top:24px}.dpi{display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--muted)}.dpi select{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:8px 10px;font-size:14px}.progress-panel,.error-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:48px;text-align:center;box-shadow:var(--shadow)}.progressbar{height:8px;background:var(--surface-2);border-radius:999px;overflow:hidden;max-width:480px;margin:18px auto 8px}.progressbar__fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--added));transition:width .3s ease}.spinner{width:38px;height:38px;margin:0 auto 16px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error-text{color:var(--removed);background:var(--removed-soft);border-radius:8px;padding:12px 16px;display:inline-block;margin:12px 0 20px}.comparison__head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:18px}.comparison__head h2{margin:0 0 4px}.comparison__actions{display:flex;gap:10px;flex:none}a.btn{text-decoration:none;display:inline-flex;align-items:center}.viewer__download{font-size:13px;color:var(--primary);text-decoration:none;border:1px solid var(--border);padding:7px 12px;border-radius:8px}.viewer__download:hover{border-color:var(--primary)}.btn--ghost{padding:7px 14px;font-size:13px;border-radius:8px;background:var(--surface-2)}.viewer__fullscreen{margin-left:auto}.arrow{color:var(--primary)}.summary-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:22px}.stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px}.stat__value{display:block;font-size:26px;font-weight:700}.stat__label{color:var(--muted);font-size:13px}.stat--added .stat__value{color:var(--added)}.stat--removed .stat__value{color:var(--removed)}.pagetabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}.pagetab{display:flex;flex-direction:column;align-items:flex-start;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:8px 14px;cursor:pointer;color:var(--text);font-size:14px}.pagetab.on{border-color:var(--primary);background:#4f8cff1a}.pagetab__status{font-size:11px;color:var(--muted)}.pagetab--changed .pagetab__status{color:var(--primary)}.pagetab--added .pagetab__status{color:var(--added)}.pagetab--removed .pagetab__status{color:var(--removed)}.comparison__body{display:grid;grid-template-columns:1fr 300px;gap:20px;align-items:start}.viewer{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px}.viewer__toolbar{display:flex;align-items:center;gap:16px;margin-bottom:12px;flex-wrap:wrap}.segmented{display:inline-flex;border:1px solid var(--border);border-radius:9px;overflow:hidden}.segmented button{background:var(--surface-2);color:var(--muted);border:none;padding:8px 14px;cursor:pointer;font-size:13px}.segmented button.on{background:var(--primary);color:#fff}.toggle{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--muted)}.swipe-slider{flex:1;min-width:120px}.canvas{position:relative;width:100%;background:#fff;border-radius:8px;overflow:hidden;border:1px solid var(--border)}.canvas img{display:block;width:100%;height:100%;object-fit:contain}.canvas-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px}.canvas-pair figure{margin:0}.canvas-pair figcaption{font-size:12px;color:var(--muted);margin-bottom:6px}.canvas--swipe .swipe-top{position:absolute;top:0;right:0;bottom:0;left:0}.swipe-handle{position:absolute;top:0;bottom:0;width:2px;background:var(--primary);transform:translate(-1px);pointer-events:none}.swipe-handle:after{content:"";position:absolute;top:50%;left:50%;width:22px;height:22px;transform:translate(-50%,-50%);border-radius:50%;background:var(--primary);border:3px solid white}.wordbox{position:absolute;border-radius:2px;pointer-events:none;transition:box-shadow .1s}.wordbox--added{background:var(--added-soft);outline:1px solid var(--added)}.wordbox--removed{background:var(--removed-soft);outline:1px solid var(--removed)}.wordbox--active{box-shadow:0 0 0 2px #fff,0 0 0 4px var(--primary);z-index:2}.changelist{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;position:sticky;top:20px;max-height:calc(100vh - 40px);overflow:auto}.changelist h3{margin:0 0 10px;font-size:15px}.changelist__visual-title{margin-top:22px}.changelist__group{margin-bottom:16px}.changelist ul{list-style:none;margin:8px 0 0;padding:0;display:flex;flex-direction:column;gap:4px}.changelist li{background:var(--surface-2);border-radius:6px;padding:6px 10px;font-size:13px;cursor:default;border:1px solid transparent}.changelist li:hover{border-color:var(--primary)}.tag{display:inline-block;font-size:12px;padding:3px 8px;border-radius:999px;margin:0}.tag--added{background:var(--added-soft);color:var(--added)}.tag--removed{background:var(--removed-soft);color:var(--removed)}.footer{padding:16px 32px;border-top:1px solid var(--border);color:var(--muted);font-size:13px;text-align:center}.fs{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;background:#0b0d11;display:flex;flex-direction:column}.fs__bar{display:flex;align-items:center;gap:16px;padding:10px 16px;background:var(--surface);border-bottom:1px solid var(--border)}.fs__hint{margin-left:auto;color:var(--muted);font-size:12px}.fs__close{flex:none}.fs__stage{position:relative;flex:1;overflow:hidden}.zoompan{position:absolute;top:0;right:0;bottom:0;left:0;overflow:hidden;cursor:grab;touch-action:none}.zoompan:active{cursor:grabbing}.zoompan__content{position:absolute;top:0;left:0;will-change:transform}.fs-layers{position:relative;width:100%;height:100%;background:#fff;pointer-events:none}.fs-base,.fs-sharp{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:fill;-webkit-user-select:none;user-select:none}.fs-sharp{inset:auto}.fs-handle{position:absolute;top:0;bottom:0;width:2px;background:var(--primary);transform:translate(-1px)}.fs-words{position:absolute;top:0;right:0;bottom:0;left:0}.zoompan__content .canvas{border-radius:0;border:none;width:100%;height:100%}.zoompan__zoom{position:absolute;bottom:18px;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:6px;padding:6px;background:var(--surface);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow);cursor:default}.zoompan__zoom button{width:34px;height:34px;border:1px solid var(--border);background:var(--surface-2);color:var(--text);border-radius:8px;font-size:18px;line-height:1;cursor:pointer}.zoompan__zoom button:hover{border-color:var(--primary)}.zoompan__level{min-width:48px;text-align:center;font-size:13px;color:var(--muted)}@media(max-width:900px){.comparison__body{grid-template-columns:1fr}.summary-bar{grid-template-columns:repeat(2,1fr)}.changelist{position:static;max-height:none}}