:root{font-family:Segoe UI,system-ui,-apple-system,sans-serif;line-height:1.5;font-weight:400;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;--bg: #0f0f12;--text: #e8e8ec;--muted: #8b8b98;--surface: #18181e;--border: #2a2a32;--accent: #6c8fff;--accent-dim: rgba(108, 143, 255, .2);--accent-fg: #fff;--error: #e86c6c}@media(prefers-color-scheme:light){:root{--bg: #f8f8fa;--text: #1a1a1e;--muted: #5c5c6a;--surface: #fff;--border: #e2e2e8;--accent: #4a6cf7;--accent-dim: rgba(74, 108, 247, .15);--accent-fg: #fff;--error: #c53030}}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:var(--bg);color:var(--text)}#root{min-height:100vh}.app{max-width:720px;margin:0 auto;padding:2rem 1.5rem;min-height:100vh}.app__header{margin-bottom:2rem}.app__title{font-size:1.75rem;font-weight:700;letter-spacing:-.02em;margin:0 0 .35em}.app__tagline{color:var(--muted);font-size:.95rem;margin:0}.dropzone{border:2px dashed var(--border);border-radius:12px;padding:2rem;text-align:center;cursor:pointer;transition:border-color .2s,background .2s;margin-bottom:2rem;position:relative}.dropzone:hover:not(.dropzone--disabled){border-color:var(--accent);background:var(--surface)}.dropzone--active{border-color:var(--accent);background:var(--surface)}.dropzone--disabled{cursor:not-allowed;opacity:.7}.dropzone__input{position:absolute;inset:0;opacity:0;cursor:pointer}.dropzone__msg{margin:0;color:var(--muted);font-size:.9rem}.dropzone__error{margin:.5em 0 0;color:var(--error);font-size:.85rem}.doc-list{margin-bottom:2rem}.doc-list__title{font-size:1rem;font-weight:600;margin:0 0 .75rem}.doc-list__items{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.75rem}.doc-card{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:1rem 1.1rem}.doc-card__head{display:flex;align-items:center;justify-content:space-between;gap:.5rem;margin-bottom:.4rem}.doc-card__name{font-weight:600;font-size:.95rem}.doc-card__remove{width:1.75rem;height:1.75rem;padding:0;border:none;border-radius:6px;background:transparent;color:var(--muted);font-size:1.25rem;line-height:1;cursor:pointer}.doc-card__remove:hover{background:var(--border);color:var(--text)}.doc-card__summary{margin:0;font-size:.85rem;color:var(--muted);line-height:1.45}.query-section{margin-bottom:2rem}.query-section__label{display:block;font-size:.9rem;font-weight:500;margin-bottom:.5rem}.query-section__row{display:flex;gap:.5rem}.query-section__input{flex:1;padding:.65rem 1rem;font-size:1rem;border:1px solid var(--border);border-radius:8px;background:var(--bg);color:var(--text)}.query-section__input::placeholder{color:var(--muted)}.query-section__input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-dim)}.query-section__btn{padding:.65rem 1.25rem;font-weight:500;background:var(--accent);color:var(--accent-fg);border:none;border-radius:8px;cursor:pointer}.query-section__btn:hover{filter:brightness(1.05)}.query-section__btn--secondary{background:var(--surface);color:var(--text);border:1px solid var(--border)}.query-section__btn--secondary:hover:not(:disabled){border-color:var(--accent)}.query-section__btn:disabled{opacity:.6;cursor:not-allowed}.answer{padding:1.25rem 0;border-top:1px solid var(--border)}.answer__title{font-size:1rem;font-weight:600;margin:0 0 .75rem}.answer__summary{margin:0 0 1rem;color:var(--muted);font-size:.95rem}.answer__points{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:1rem}.answer__point{padding:1rem;background:var(--surface);border-radius:8px;border-left:3px solid var(--accent)}.answer__text{display:block;margin-bottom:.5rem;font-size:.9rem;line-height:1.5}.answer__cite{font-size:.8rem;color:var(--muted);font-style:normal}.answer__ai-loading{color:var(--muted);margin:0 0 .5rem}.answer__error{color:var(--error);margin:0 0 .5rem}.answer__ai-block{white-space:pre-wrap;font-size:.95rem;line-height:1.6;margin:0}