:root{
  --bg:#f5f8f6;--surface:#fff;--text:#17231d;--muted:#63736b;--line:#dce7e0;
  --primary:#148451;--primary-dark:#0d673e;--soft:#eaf6ef;--dark:#173c2b;
  --warn:#9a6700;--warnbg:#fff7df;--shadow:0 14px 38px rgba(18,54,37,.08);--radius:18px
}
*{box-sizing:border-box} html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.55}
button,input,select,textarea{font:inherit} button{cursor:pointer}.wrap{width:min(1180px,calc(100% - 32px));margin:0 auto}
.topbar{background:var(--dark);color:#fff}.topbar-inner{min-height:66px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:800;font-size:1.08rem}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:#fff;color:var(--primary-dark);font-weight:900}.top-tag{font-size:.88rem;opacity:.82}
.breadcrumb{display:flex;gap:9px;align-items:center;padding:22px 0 6px;color:var(--muted);font-size:.9rem}.breadcrumb a{color:var(--primary-dark);text-decoration:none}
.hero{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;padding:28px 0 30px}.hero h1{font-size:clamp(2rem,4.2vw,3.5rem);line-height:1.05;margin:.4rem 0 .85rem;letter-spacing:-.04em;max-width:820px}.hero p{max-width:760px;margin:0;color:var(--muted);font-size:1.08rem}.eyebrow{font-size:.78rem;text-transform:uppercase;letter-spacing:.12em;font-weight:800;color:var(--primary)}.privacy-badge{background:var(--soft);border:1px solid #cde8d8;border-radius:999px;padding:10px 14px;color:var(--primary-dark);white-space:nowrap;font-weight:700;font-size:.88rem}
.workspace{display:grid;grid-template-columns:360px 1fr;gap:20px;align-items:start}.panel,.info-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.panel{padding:20px}.panel-head,.viewer-head,.results-header,.answer-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.panel h2,.info-card h2{margin:0 0 4px;font-size:1.12rem}.panel p{margin:0;color:var(--muted);font-size:.92rem}
.dropzone{margin-top:18px;min-height:176px;border:2px dashed #b9d9c7;background:#f8fcf9;border-radius:16px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:20px;color:var(--muted);transition:.2s}.dropzone:hover,.dropzone.dragover{border-color:var(--primary);background:var(--soft)}.dropzone strong{color:var(--text);font-size:1rem;margin:4px 0}.drop-icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--primary);color:white;font-size:1.5rem}
.progress-box{margin-top:15px;padding:12px;border:1px solid var(--line);border-radius:12px;background:#fbfdfc}.progress-row{display:flex;justify-content:space-between;font-size:.82rem;color:var(--muted);margin-bottom:7px}.progress-track{height:8px;border-radius:999px;background:#e8eeea;overflow:hidden}.progress-bar{height:100%;width:0;background:var(--primary);transition:width .2s}
.file-list{display:grid;gap:10px;margin-top:16px}.file-card{border:1px solid var(--line);border-radius:13px;padding:12px;background:#fff}.file-card-top{display:flex;gap:10px;align-items:flex-start}.file-icon{width:34px;height:34px;display:grid;place-items:center;background:#f6ecec;border-radius:9px;flex:0 0 auto;font-size:.72rem;font-weight:800}.file-info{min-width:0;flex:1}.file-name{font-weight:750;font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-meta{font-size:.78rem;color:var(--muted);margin-top:2px}.file-remove{border:0;background:transparent;color:#9a4f4f;font-size:1rem;padding:2px 5px}
.model-card{margin-top:18px;padding:15px;border:1px solid #cfe2d6;border-radius:14px;background:#f8fcf9}.model-head>div{display:flex;align-items:center;justify-content:space-between;gap:8px}.model-card p{margin:7px 0 12px;font-size:.8rem}.badge{font-size:.7rem;font-weight:800;border-radius:999px;padding:4px 8px}.badge-off{background:#eef1ef;color:#6c7871}.badge-loading{background:var(--warnbg);color:var(--warn)}.badge-on{background:#dff4e7;color:var(--primary-dark)}
.mode-tabs{display:flex;gap:8px;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:20px}.mode-tab{border:1px solid var(--line);background:#f7faf8;border-radius:11px;padding:9px 13px;font-weight:750;color:var(--muted)}.mode-tab.active{background:var(--dark);color:#fff;border-color:var(--dark)}
.section-intro h2{margin:0 0 3px}.section-intro p{margin:0;color:var(--muted)}
.ask-form{margin-top:18px}.ask-form textarea{width:100%;resize:vertical;min-height:112px;border:1px solid var(--line);border-radius:14px;padding:14px;outline:none;color:var(--text);background:#fff}.ask-form textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(20,132,81,.1)}.ask-actions{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:10px}.hint{font-size:.78rem;color:var(--muted)}
.search-form{display:grid;grid-template-columns:1fr auto;gap:10px;margin-top:18px}.search-field{display:flex;align-items:center;gap:9px;border:1px solid var(--line);border-radius:12px;background:#fff;padding:0 13px}.search-field:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(20,132,81,.1)}.search-field input{border:0;outline:0;width:100%;padding:13px 0;background:transparent;color:var(--text)}.search-options{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:11px;color:var(--muted);font-size:.84rem}.search-options label{display:flex;align-items:center;gap:7px}.search-options select{border:1px solid var(--line);border-radius:9px;padding:5px 8px;background:white}
.btn{border:0;border-radius:11px;padding:11px 15px;font-weight:750;transition:.15s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-ghost{background:#f2f6f3;color:var(--dark);border:1px solid var(--line)}.btn-dark{background:var(--dark);color:#fff}.btn-small{padding:7px 10px;font-size:.82rem}.btn-full{width:100%}.btn:disabled{opacity:.45;cursor:not-allowed}
.status-message{margin-top:20px;padding:16px;border-radius:13px;background:#f7faf8;border:1px solid var(--line);color:var(--muted);text-align:center}
.answer-card{margin-top:20px;border:1px solid var(--line);border-radius:16px;padding:18px;background:#fbfdfc}.answer-head h3{margin:3px 0 0}.answer-text{margin-top:14px;white-space:pre-wrap;font-size:1rem;line-height:1.7}.answer-text .citation-ref{display:inline-flex;align-items:center;justify-content:center;background:var(--soft);color:var(--primary-dark);font-weight:800;border-radius:6px;padding:0 5px;font-size:.86em}
.evidence-head{margin-top:22px;padding-top:18px;border-top:1px solid var(--line)}.evidence-head h3{margin:0 0 3px}.evidence-head p{margin:0}
.sources-list{display:grid;gap:10px;margin-top:12px}.source-card{border:1px solid var(--line);border-radius:13px;padding:13px;background:#fff}.source-title{display:flex;justify-content:space-between;gap:12px;font-weight:800}.source-page{font-size:.76rem;background:var(--soft);color:var(--primary-dark);border-radius:999px;padding:3px 7px;white-space:nowrap}.source-snippet{margin:8px 0;color:#43544b;font-size:.88rem}.source-actions{display:flex;gap:8px;flex-wrap:wrap}
.results-header{margin-top:22px;padding-top:18px;border-top:1px solid var(--line)}.results-header h3{margin:0 0 2px}.results{display:grid;gap:12px;margin-top:13px}.result-card{border:1px solid var(--line);border-radius:14px;padding:15px;background:#fff}.result-top{display:flex;justify-content:space-between;gap:12px}.result-source{font-weight:800;font-size:.9rem}.result-page{font-size:.78rem;padding:4px 8px;border-radius:999px;background:var(--soft);color:var(--primary-dark);white-space:nowrap}.result-snippet{margin:10px 0 12px;color:#34453c;font-size:.94rem}.result-snippet mark{background:#fff0a6;border-radius:3px;padding:0 2px}.result-actions{display:flex;flex-wrap:wrap;gap:8px}
.viewer-panel{margin-top:20px}.viewer-head{align-items:center}.viewer-actions{display:flex;align-items:center;gap:7px;flex-wrap:wrap;justify-content:flex-end}#pageIndicator{font-size:.84rem;color:var(--muted);min-width:65px;text-align:center}.canvas-wrap{margin-top:18px;overflow:auto;background:#dfe6e2;border-radius:14px;padding:18px;max-height:74vh;text-align:center}#pdfCanvas{max-width:100%;height:auto;background:#fff;box-shadow:0 6px 24px rgba(0,0,0,.16)}
.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px}.info-card{padding:22px}.info-card p,.info-card li{color:var(--muted)}.info-card ol{padding-left:20px;margin-bottom:0}details{border-top:1px solid var(--line);padding:10px 0}details:first-of-type{margin-top:8px}summary{font-weight:700;cursor:pointer}.related{padding:30px 0 50px}.related h2{font-size:1.05rem}.chips{display:flex;flex-wrap:wrap;gap:8px}.chips span{background:#fff;border:1px solid var(--line);padding:7px 10px;border-radius:999px;color:var(--muted);font-size:.84rem}.footer{background:var(--dark);color:#dce7e0;margin-top:20px}.footer-inner{display:flex;justify-content:space-between;gap:14px;min-height:72px;align-items:center;font-size:.86rem}.hidden{display:none!important}
@media(max-width:900px){.hero{align-items:flex-start;flex-direction:column}.privacy-badge{white-space:normal}.workspace{grid-template-columns:1fr}.info-grid{grid-template-columns:1fr}}
@media(max-width:620px){.wrap{width:min(100% - 22px,1180px)}.mode-tabs{flex-direction:column}.search-form{grid-template-columns:1fr}.search-options,.ask-actions{align-items:flex-start;flex-direction:column}.panel-head,.viewer-head,.results-header,.answer-head{flex-direction:column}.viewer-actions{justify-content:flex-start}.footer-inner{flex-direction:column;justify-content:center;align-items:flex-start;padding:18px 0}}