:root{color-scheme:light;--bg: #f4f5f7;--surface: #ffffff;--surface-2: #fafbfc;--border: #dfe3e8;--border-strong: #c3c9d1;--text: #16181d;--text-muted: #5c636e;--accent: #0b5cad;--accent-soft: #e6f0fa;--danger: #b4231f;--danger-soft: #fbeceb;--warn-soft: #fdf4e3;--warn-border: #e4c67a;--shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .1);--radius: 8px}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark;--bg: #14161a;--surface: #1c1f25;--surface-2: #22262d;--border: #2f343d;--border-strong: #434a56;--text: #e8eaed;--text-muted: #a0a7b4;--accent: #5aa7f0;--accent-soft: #16293d;--danger: #f08a86;--danger-soft: #3a1f1e;--warn-soft: #332a17;--warn-border: #6b5722;--shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 1px 3px rgba(0, 0, 0, .35)}}:root[data-theme=dark]{color-scheme:dark;--bg: #14161a;--surface: #1c1f25;--surface-2: #22262d;--border: #2f343d;--border-strong: #434a56;--text: #e8eaed;--text-muted: #a0a7b4;--accent: #5aa7f0;--accent-soft: #16293d;--danger: #f08a86;--danger-soft: #3a1f1e;--warn-soft: #332a17;--warn-border: #6b5722;--shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 1px 3px rgba(0, 0, 0, .35)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.5 Figtree,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}button{font:inherit;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}.app{display:flex;flex-direction:column;min-height:100vh}.header{display:flex;align-items:center;gap:16px;padding:0 20px;height:56px;background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20}.header__brand{display:flex;align-items:center;gap:9px;font-weight:700}.header__brand span{font-weight:400;font-size:13px;color:var(--text-muted)}.header__brand img{flex-shrink:0}.header__spacer{flex:1}.header__user{font-size:13px;color:var(--text-muted);text-align:right;line-height:1.3}.header__user strong{display:block;color:var(--text);font-weight:600}.btn{display:inline-flex;align-items:center;gap:6px;text-decoration:none;padding:7px 13px;border:1px solid var(--border-strong);border-radius:6px;background:var(--surface);color:var(--text);font-size:14px;white-space:nowrap;transition:background .12s,border-color .12s}.btn:hover:not(:disabled){background:var(--surface-2);border-color:var(--text-muted)}.btn--primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}.btn--primary:hover:not(:disabled){filter:brightness(1.08);background:var(--accent);border-color:var(--accent)}.btn--danger{color:var(--danger);border-color:var(--border-strong)}.btn--danger:hover:not(:disabled){background:var(--danger-soft);border-color:var(--danger)}.btn--ghost{border-color:transparent;background:transparent;color:var(--text-muted)}.btn--ghost:hover:not(:disabled){background:var(--surface-2);color:var(--text)}.btn--sm{padding:4px 9px;font-size:13px}.main{display:flex;flex:1;min-height:0}.sidebar{width:280px;flex-shrink:0;overflow-x:hidden;border-right:1px solid var(--border);background:var(--surface);padding:16px;overflow-y:auto}.workspace{flex:1;min-width:0;display:flex;flex-direction:column}.section-title{font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--text-muted);margin:0 0 10px}.doc-list{list-style:none;margin:0 0 16px;padding:0;display:grid;gap:6px}.doc-item{display:flex;align-items:center;gap:8px;padding:8px 10px;border:1px solid var(--border);border-radius:6px;background:var(--surface-2);font-size:13px;min-width:0}.doc-item__body{min-width:0;flex:1}.doc-item>.icon-btn{flex-shrink:0}.doc-item__name{font-weight:550;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.doc-item__meta{color:var(--text-muted);font-size:12px;overflow-wrap:anywhere}.badge{display:inline-block;padding:1px 6px;border-radius:4px;background:var(--accent-soft);color:var(--accent);font-size:11px;font-weight:650;text-transform:uppercase}.empty-note{color:var(--text-muted);font-size:13px;margin:0 0 16px}.dropzone{border:2px dashed var(--border-strong);border-radius:var(--radius);padding:20px 14px;text-align:center;color:var(--text-muted);font-size:13px;background:var(--surface-2);transition:border-color .12s,background .12s}.dropzone--active{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}.dropzone p{margin:8px 0 0}.overlay-drop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;background:#0b5cad1f;border:3px dashed var(--accent);display:grid;place-items:center;font-size:20px;font-weight:650;color:var(--accent);pointer-events:none;-webkit-backdrop-filter:blur(1px);backdrop-filter:blur(1px)}.toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:12px 20px;border-bottom:1px solid var(--border);background:var(--surface);position:sticky;top:56px;z-index:10}.toolbar__divider{width:1px;height:22px;background:var(--border)}.toolbar__count{font-size:13px;color:var(--text-muted);margin-right:2px}.toolbar__spacer{flex:1}.grid-scroll{flex:1;overflow-y:auto;padding:20px}.page-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(168px,1fr));gap:16px;align-items:start}.page-card{position:relative;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);overflow:hidden;transition:border-color .12s,box-shadow .12s}.page-card--selected{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft),var(--shadow)}.page-card--dragging{opacity:.35}.page-card__thumb{position:relative;aspect-ratio:1 / 1.3;display:grid;place-items:center;background:var(--surface-2);overflow:hidden;cursor:grab;touch-action:none}.page-card__thumb img{max-width:88%;max-height:88%;background:#fff;box-shadow:0 1px 4px #10182833;transition:transform .18s ease}.page-card__thumb img.is-quarter-turned{max-width:114.4%;max-height:67.7%}.page-card__placeholder{color:var(--text-muted);font-size:12px}.page-card__check{position:absolute;top:6px;left:6px;width:17px;height:17px;accent-color:var(--accent);cursor:pointer;z-index:2}.page-card__index{position:absolute;top:6px;right:6px;padding:1px 6px;border-radius:4px;background:#16181db8;color:#fff;font-size:11px;font-weight:650;font-variant-numeric:tabular-nums}.page-card__footer{display:flex;align-items:center;gap:4px;padding:6px 7px;border-top:1px solid var(--border);background:var(--surface)}.page-card__source{flex:1;min-width:0;font-size:11px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.icon-btn{display:grid;place-items:center;width:24px;height:24px;padding:0;border:none;border-radius:4px;background:transparent;color:var(--text-muted)}.icon-btn:hover:not(:disabled){background:var(--surface-2);color:var(--text)}.icon-btn--danger:hover:not(:disabled){background:var(--danger-soft);color:var(--danger)}.split-slot{grid-column:1 / -1}.split-bar{display:flex;align-items:center;gap:10px;padding:2px 0;color:var(--accent);font-size:12px;font-weight:650}.split-bar:before,.split-bar:after{content:"";flex:1;height:0;border-top:2px dashed var(--accent)}.file-group-label{grid-column:1 / -1;font-size:12px;font-weight:650;color:var(--text-muted);padding-top:4px}.empty-state{display:grid;place-items:center;height:100%;min-height:320px;text-align:center;color:var(--text-muted);padding:40px}.empty-state h2{margin:0 0 6px;font-size:17px;color:var(--text)}.empty-state p{margin:0 0 4px;max-width:460px;font-size:14px}.dialog-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;background:#10182873;display:grid;place-items:center;padding:20px}.dialog{background:var(--surface);border-radius:12px;box-shadow:0 20px 48px #10182847;width:min(480px,100%);padding:22px 24px;border:1px solid var(--border)}.dialog h2{margin:0 0 4px;font-size:17px}.dialog__hint{margin:0 0 18px;color:var(--text-muted);font-size:13px}.dialog__actions{display:flex;justify-content:flex-end;gap:8px;margin-top:22px}.field{display:block;margin-bottom:14px}.field__label{display:block;font-size:13px;font-weight:600;margin-bottom:5px}.field input[type=text]{width:100%;padding:8px 10px;border:1px solid var(--border-strong);border-radius:6px;background:var(--surface-2);color:var(--text);font:inherit}.field input:focus{outline:2px solid var(--accent);outline-offset:-1px}.radio-row{display:flex;align-items:flex-start;gap:8px;margin-bottom:8px;font-size:14px}.radio-row input{margin-top:3px;accent-color:var(--accent)}.radio-row small{display:block;color:var(--text-muted);font-size:12px}.banner{display:flex;align-items:flex-start;gap:10px;padding:10px 14px;font-size:13px;border-bottom:1px solid var(--border)}.banner--error{background:var(--danger-soft);color:var(--danger)}.banner--warn{background:var(--warn-soft);border-bottom-color:var(--warn-border)}.banner__close{margin-left:auto}.progress{height:3px;background:var(--border);overflow:hidden}.progress__bar{height:100%;background:var(--accent);transition:width .15s ease}.centered-message{display:grid;place-items:center;height:100vh;text-align:center;padding:40px}.centered-message .card{background:var(--surface);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);padding:32px 36px;max-width:420px}.centered-message h1{font-size:19px;margin:0 0 8px}.centered-message p{color:var(--text-muted);margin:0 0 20px;font-size:14px}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:var(--bg)}.login-card{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:32px;max-width:24rem;width:100%;box-shadow:var(--shadow);overflow:hidden}.login-card:before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:linear-gradient(90deg,#073d5c,#78c2ca 35%,#e47024 70%,#f5b951)}.login-tile{width:96px;height:96px;border-radius:20px;background:#435f7a;display:flex;align-items:center;justify-content:center;margin:0 auto 18px}.login-title{text-align:center;font-weight:800;font-size:1.35rem;letter-spacing:-.01em;margin:0 0 4px}.login-sub{text-align:center;color:var(--text-muted);font-size:.875rem;margin:0 0 22px}.login-note{margin:18px 0 0;text-align:center;color:var(--text-muted);font-size:12px;line-height:1.5}.btn--ms{width:100%;justify-content:center;gap:10px;padding:11px 16px;font-weight:600}.account{position:relative}.account__button{display:grid;place-items:center;width:32px;height:32px;padding:0;overflow:hidden;border:1px solid var(--border-strong);border-radius:999px;background:var(--surface-2);color:var(--text-muted);font-size:12px;font-weight:700;transition:box-shadow .12s}.account__button:hover{box-shadow:0 0 0 3px var(--accent-soft)}.account__button img{width:100%;height:100%;object-fit:cover}.account__menu{position:absolute;right:0;top:calc(100% + 8px);z-index:60;width:248px;overflow:hidden;background:var(--surface);border:1px solid var(--border);border-radius:12px;box-shadow:0 10px 30px #1018282e}.account__identity{padding:10px 12px;border-bottom:1px solid var(--border)}.account__name{font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.account__email{font-size:12px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.account__section{padding:4px;border-bottom:1px solid var(--border)}.account__section:last-child{border-bottom:none}.account__item{display:flex;align-items:center;gap:10px;width:100%;padding:7px 8px;border:none;border-radius:6px;background:transparent;color:var(--text);font-size:14px;text-align:left;transition:background .12s}.account__item:hover{background:var(--surface-2)}.account__item--danger{color:var(--danger)}.account__item--danger:hover{background:var(--danger-soft)}.account__item-label{flex:1}.account__item-value{font-size:12px;color:var(--text-muted)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}