:root{--bg: #0e1116;--surface: #161a22;--surface-2: #1d222c;--border: #272d39;--text: #e7e9ee;--text-muted: #8a92a3;--accent: #5eead4;--accent-dim: #2d3f3c;--danger: #f2726b;color-scheme:dark}:root[data-theme=light]{--bg: #f5f6f8;--surface: #ffffff;--surface-2: #eef0f3;--border: #dde1e7;--text: #14161c;--text-muted: #5b6472;--accent: #0f8f80;--accent-dim: #d9f3ee;--danger: #c1443b;color-scheme:light}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased}.page{max-width:760px;margin:0 auto;padding:64px 24px 48px;min-height:100%;display:flex;flex-direction:column}.page__header{margin-bottom:40px}.page__headerTop{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.page__title{font-family:IBM Plex Mono,monospace;font-size:32px;font-weight:700;letter-spacing:-.02em;margin:0 0 8px;display:flex;align-items:center;gap:10px}.page__logo{border-radius:7px;display:block}.page__subtitle{color:var(--text-muted);font-size:15px;margin:0}.splitter{display:flex;flex-direction:column;gap:28px;flex:1}.config__eyebrow{font-family:IBM Plex Mono,monospace;font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--accent);display:block;margin-bottom:12px}.dropzone{position:relative;border:1px dashed var(--border);border-radius:10px;background:var(--surface);padding:36px 24px;cursor:pointer;transition:border-color .15s ease,background .15s ease}.dropzone:hover{border-color:var(--accent)}.dropzone--active{border-color:var(--accent);background:var(--surface-2)}.dropzone--filled{border-style:solid}.dropzone__input{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;pointer-events:none}.dropzone__prompt{display:flex;flex-direction:column;gap:6px;text-align:center;align-items:center}.dropzone__eyebrow{font-family:IBM Plex Mono,monospace;font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--accent)}.dropzone__title{font-size:16px;font-weight:500}.dropzone__hint{font-size:13px;color:var(--text-muted)}.dropzone__file{display:flex;align-items:center;justify-content:space-between;gap:12px;font-family:IBM Plex Mono,monospace}.dropzone__filename{font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dropzone__filesize{color:var(--text-muted);font-size:13px;flex-shrink:0}.config__row{display:flex;gap:10px;align-items:stretch}.config__input{width:100px;background:var(--surface);border:1px solid var(--border);color:var(--text);border-radius:8px;padding:0 12px;font-family:IBM Plex Mono,monospace;font-size:15px}.config__input:focus,.split-btn:focus-visible,.unit-btn:focus-visible,.chunk-list__btn:focus-visible,.dropzone:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.config__units{display:flex;border:1px solid var(--border);border-radius:8px;overflow:hidden}.unit-btn{background:var(--surface);border:none;color:var(--text-muted);padding:0 14px;font-family:IBM Plex Mono,monospace;font-size:13px;cursor:pointer;border-right:1px solid var(--border)}.unit-btn:last-child{border-right:none}.unit-btn--active{background:var(--accent-dim);color:var(--accent)}.split-btn{margin-left:auto;background:var(--accent);color:#06201c;border:none;border-radius:8px;padding:0 18px;font-weight:600;font-size:14px;cursor:pointer;transition:filter .15s ease}.split-btn:hover:not(:disabled){filter:brightness(1.08)}.split-btn:disabled{background:var(--surface-2);color:var(--text-muted);cursor:not-allowed}.config__estimate{margin:12px 0 0;font-size:13px;color:var(--text-muted)}.config__error{margin:12px 0 0;font-size:13px;color:var(--danger)}.segments{display:flex;gap:3px;height:10px;margin-bottom:16px}.segment{background:var(--surface-2);border:1px solid var(--border);border-radius:2px;transition:background .2s ease;min-width:4px}.segment--done{background:var(--accent);border-color:var(--accent)}.result__actions{display:flex;align-items:center;gap:14px;margin-bottom:20px}.result__note{font-size:12px;color:var(--text-muted)}.chunk-list{list-style:none;margin:0;padding:0;border:1px solid var(--border);border-radius:10px;overflow:hidden}.chunk-list__row{display:flex;align-items:center;gap:12px;padding:10px 14px;background:var(--surface);border-bottom:1px solid var(--border)}.chunk-list__row:last-child{border-bottom:none}.chunk-list__index{font-family:IBM Plex Mono,monospace;color:var(--text-muted);font-size:12px;width:24px;flex-shrink:0}.chunk-list__name{font-family:IBM Plex Mono,monospace;font-size:13px;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chunk-list__size{font-size:12px;color:var(--text-muted);flex-shrink:0}.chunk-list__btn{background:transparent;border:1px solid var(--border);color:var(--text);border-radius:6px;padding:5px 12px;font-size:12px;cursor:pointer;flex-shrink:0}.chunk-list__btn:hover{border-color:var(--accent);color:var(--accent)}.reassemble{margin-top:28px}.reassemble__hint{font-size:13px;color:var(--text-muted);margin:0 0 10px}.reassemble__code{display:block;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:10px 14px;font-family:IBM Plex Mono,monospace;font-size:12.5px;overflow-x:auto;white-space:pre}.reassemble__label{display:block;font-size:11px;color:var(--text-muted);margin:4px 0 14px}.tabs{display:inline-flex;gap:4px;margin-top:20px;border:1px solid var(--border);border-radius:8px;padding:3px;background:var(--surface)}.tab{background:transparent;border:none;color:var(--text-muted);font-family:IBM Plex Mono,monospace;font-size:13px;padding:6px 16px;border-radius:6px;cursor:pointer}.tab--active{background:var(--accent-dim);color:var(--accent)}.slot-list{list-style:none;margin:0 0 12px;padding:0;display:flex;flex-direction:column;gap:8px}.slot-row{display:flex;align-items:center;gap:12px;border:1px solid var(--border);border-radius:8px;padding:10px 14px;background:var(--surface)}.slot-row__index{font-family:IBM Plex Mono,monospace;font-size:12px;color:var(--text-muted);width:20px;flex-shrink:0}.slot-row__input{flex:1;cursor:pointer;color:var(--text-muted);font-size:14px;position:relative}.slot-row__input--dim{opacity:.6}.slot-row__input:hover{color:var(--accent)}.slot-row__file{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;width:100%;cursor:pointer}.slot-row__name{font-family:IBM Plex Mono,monospace;font-size:13px;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.slot-row__size{font-size:12px;color:var(--text-muted);flex-shrink:0}.slot-row__actions{display:flex;gap:6px;flex-shrink:0}.icon-btn{width:26px;height:26px;background:transparent;border:1px solid var(--border);color:var(--text-muted);border-radius:6px;cursor:pointer;font-size:12px;line-height:1}.icon-btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.icon-btn:disabled{opacity:.3;cursor:not-allowed}.config__input--wide{width:auto;flex:1}.page__footer{margin-top:48px;font-size:12px;color:var(--text-muted);display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.page__meta{display:flex;align-items:center;gap:12px;font-family:IBM Plex Mono,monospace}.page__meta a{color:var(--text-muted);text-decoration:none}.page__meta a:hover{color:var(--accent)}.page__version{color:var(--text-muted)}.settings-bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.settings-bar__group{display:flex;border:1px solid var(--border);border-radius:8px;padding:3px;background:var(--surface);gap:2px}.pill-btn{background:transparent;border:none;color:var(--text-muted);font-family:IBM Plex Mono,monospace;font-size:12px;padding:5px 10px;border-radius:6px;cursor:pointer}.pill-btn:hover{color:var(--text)}.pill-btn--active{background:var(--accent-dim);color:var(--accent)}.advanced{margin-top:16px;border-top:1px solid var(--border);padding-top:14px}.advanced__toggle{display:inline-flex;align-items:center;gap:6px;background:none;border:none;color:var(--text-muted);font-family:IBM Plex Mono,monospace;font-size:12px;text-transform:uppercase;letter-spacing:.06em;cursor:pointer;padding:0}.advanced__toggle:hover{color:var(--accent)}.advanced__chevron{display:inline-block;transition:transform .15s ease;font-size:14px}.advanced__chevron--open{transform:rotate(90deg)}.advanced__panel{display:flex;flex-direction:column;gap:16px;margin-top:14px}.radio-group{border:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}.radio-group__legend{font-family:IBM Plex Mono,monospace;font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);padding:0;margin-bottom:4px}.radio-row{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--text);cursor:pointer}.radio-row input[type=radio]{margin-top:2px;accent-color:var(--accent);width:15px;height:15px;flex-shrink:0;cursor:pointer}.checkbox-row{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--text);cursor:pointer}.checkbox-row input[type=checkbox]{margin-top:2px;accent-color:var(--accent);width:15px;height:15px;flex-shrink:0;cursor:pointer}.checkbox-row__hint{color:var(--text-muted)}@media (max-width: 480px){.config__row{flex-wrap:wrap}.split-btn{margin-left:0;width:100%;padding:10px 0}}