:root{--bg:#f6f7fb;--card:#fff;--text:#1f2937;--muted:#6b7280;--border:#dfe3ea;--primary:#4f46e5;--primary2:#4338ca;--danger:#b91c1c;--warn:#92400e;--good:#166534;--shadow:0 6px 22px rgba(30,41,59,.07)}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}button,input,select,textarea{font:inherit}button{border:0;border-radius:9px;padding:10px 14px;background:var(--primary);color:#fff;cursor:pointer}button:hover{background:var(--primary2)}button.ghost,.file-label{background:#fff;color:var(--text);border:1px solid var(--border)}.file-label{display:inline-flex;padding:9px 12px;border-radius:9px;cursor:pointer}.primary{background:var(--primary)}.topbar{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;gap:20px;align-items:center;padding:14px 22px;background:#fff;border-bottom:1px solid var(--border)}.topbar h1{margin:0;font-size:20px}.topbar p{margin:3px 0 0;color:var(--muted);font-size:13px}.top-actions{display:flex;gap:8px;flex-wrap:wrap}.shell{display:grid;grid-template-columns:230px minmax(0,1fr);max-width:1500px;margin:0 auto;min-height:calc(100vh - 72px)}.sidebar{padding:20px 12px;border-right:1px solid var(--border);background:#fff}.step{width:100%;display:flex;align-items:center;gap:10px;margin-bottom:6px;background:transparent;color:var(--text);text-align:left}.step span{display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:#eef0ff;color:var(--primary);font-weight:700}.step.active{background:#eef0ff;color:var(--primary)}.privacy-badge{margin-top:20px;padding:12px;border-radius:10px;background:#f0fdf4;color:#166534;font-size:12px;line-height:1.7}.content{padding:20px;min-width:0}.statusbar{padding:10px 14px;border:1px solid var(--border);background:#fff;border-radius:10px;margin-bottom:14px;color:var(--muted)}.statusbar.busy{color:#1d4ed8;background:#eff6ff}.statusbar.error{color:var(--danger);background:#fef2f2}.statusbar.ok{color:var(--good);background:#f0fdf4}.panel{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:22px;box-shadow:var(--shadow)}.hidden{display:none!important}.panel h2{margin-top:0}.panel h3{margin:20px 0 10px}.mode-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.mode-card{min-height:120px;text-align:left;background:#fff;color:var(--text);border:2px solid var(--border);padding:18px}.mode-card strong,.mode-card small{display:block}.mode-card small{margin-top:8px;color:var(--muted);line-height:1.45}.mode-card.selected{border-color:var(--primary);background:#f5f3ff}.form-grid{display:grid;gap:12px;margin:12px 0}.form-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.form-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.form-grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.wide{grid-column:1/-1}label{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:600}input,select,textarea{width:100%;border:1px solid var(--border);border-radius:8px;padding:10px;background:#fff;color:var(--text)}textarea{resize:vertical}.input-row{display:flex;gap:8px}.checks{display:flex;gap:16px;flex-wrap:wrap;margin:10px 0}.checks label,.consent{display:flex;flex-direction:row;align-items:center;font-weight:500}.checks input,.consent input{width:auto}.notice{border-radius:10px;padding:12px 14px;margin:14px 0;line-height:1.5}.notice.info{background:#eff6ff;color:#1e3a8a}.notice.warning{background:#fffbeb;color:#78350f}.notice.danger{background:#fef2f2;color:#991b1b}.row-head{display:flex;justify-content:space-between;gap:12px;align-items:center}.editor-row{display:grid;grid-template-columns:repeat(5,minmax(110px,1fr)) 42px;gap:8px;margin-bottom:8px;align-items:center}.editor-row.small{grid-template-columns:repeat(3,minmax(120px,1fr)) 42px}.editor-row.activity{grid-template-columns:1.2fr 1.6fr .5fr .8fr 1fr .8fr .8fr 1.1fr 42px}.editor-row button{padding:8px;background:#fff;color:var(--danger);border:1px solid #fecaca}.upload-box{border:2px dashed #cbd5e1;border-radius:12px;padding:22px;text-align:center;background:#fafafa}.file-list{margin-top:14px}.file-item{display:grid;grid-template-columns:1fr auto auto;gap:10px;align-items:center;padding:10px;border-bottom:1px solid var(--border)}.pill{padding:4px 8px;border-radius:999px;background:#eef0ff;color:var(--primary);font-size:12px}.muted{color:var(--muted);font-size:13px}.tabs{display:flex;gap:8px;border-bottom:1px solid var(--border);margin-bottom:14px}.tab{background:transparent;color:var(--muted);border-radius:0;border-bottom:2px solid transparent}.tab.active{color:var(--primary);border-color:var(--primary)}.action-row{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0}.counter{font-weight:700;color:var(--primary)}.table-wrap{overflow:auto;border:1px solid var(--border);border-radius:10px}table{border-collapse:collapse;width:100%;min-width:1100px}th,td{border-bottom:1px solid var(--border);border-right:1px solid var(--border);padding:7px;vertical-align:top;font-size:12px}th{background:#f8fafc;position:sticky;top:0;z-index:1}td input,td textarea{padding:6px;font-size:12px;min-width:90px}td textarea{min-height:58px}.validation{display:grid;gap:8px;margin-bottom:18px}.vitem{padding:10px 12px;border-radius:8px}.vitem.err{background:#fef2f2;color:#991b1b}.vitem.warn{background:#fffbeb;color:#92400e}.vitem.ok{background:#f0fdf4;color:#166534}.preview-section{padding:14px;border:1px solid var(--border);border-radius:10px;margin-bottom:10px}.footer-nav{display:flex;justify-content:space-between;margin-top:14px}.site-summary{font-size:13px;color:var(--muted);margin:4px 0 12px}@media(max-width:980px){.shell{grid-template-columns:1fr}.sidebar{display:flex;overflow:auto;border-right:0;border-bottom:1px solid var(--border);padding:8px;position:sticky;top:69px;z-index:10}.step{min-width:125px;margin:0}.privacy-badge{display:none}.mode-grid,.form-grid.three,.form-grid.four{grid-template-columns:1fr 1fr}.editor-row,.editor-row.activity{grid-template-columns:1fr 1fr}.content{padding:12px}}@media(max-width:640px){.topbar{align-items:flex-start;flex-direction:column}.mode-grid,.form-grid.two,.form-grid.three,.form-grid.four{grid-template-columns:1fr}.editor-row,.editor-row.activity,.editor-row.small{grid-template-columns:1fr}.content{padding:8px}.panel{padding:14px}.top-actions{width:100%}.top-actions>*{flex:1;text-align:center}}
.analysis-box{border:1px solid var(--border);border-radius:12px;padding:14px;margin:14px 0;background:#fcfcff}.progress-track{height:10px;background:#e5e7eb;border-radius:999px;overflow:hidden;margin:10px 0}.progress-bar{height:100%;width:0;background:var(--primary);transition:width .25s ease}.analysis-stats{display:flex;gap:14px;flex-wrap:wrap;font-size:12px;color:var(--muted);margin:8px 0}.chunk-list{max-height:260px;overflow:auto;border:1px solid var(--border);border-radius:9px;background:#fff}.chunk-item{display:grid;grid-template-columns:70px 1fr 120px 110px;gap:8px;align-items:center;padding:8px 10px;border-bottom:1px solid var(--border);font-size:12px}.chunk-item:last-child{border-bottom:0}.chunk-item .status-ok{color:var(--good);font-weight:700}.chunk-item .status-err{color:var(--danger);font-weight:700}.chunk-item .status-run{color:#1d4ed8;font-weight:700}.chunk-item .status-wait{color:var(--muted)}@media(max-width:640px){.chunk-item{grid-template-columns:55px 1fr}.chunk-item>*:nth-child(3),.chunk-item>*:nth-child(4){grid-column:2}}

/* v1.2.1 hotfix: cho phép người dùng xác nhận/đổi loại tài liệu */
.upload-kind-row{max-width:360px;margin:0 auto 12px;text-align:left}.file-item{grid-template-columns:minmax(0,1fr) minmax(135px,180px) auto}.doc-kind-select{padding:7px 9px;font-size:12px}.file-item .muted{line-height:1.45}@media(max-width:640px){.file-item{grid-template-columns:1fr}.doc-kind-select{width:100%}}

/* v1.2.3: trạng thái Dual PDF Pipeline */
.notice.ok{background:#f0fdf4;color:#166534}.file-main{min-width:0}.file-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:7px}.tag{display:inline-flex;align-items:center;padding:3px 7px;border-radius:999px;background:#f1f5f9;color:#334155;font-size:11px}.tag.scan{background:#fff7ed;color:#9a3412}.tag.text{background:#ecfdf5;color:#166534}.file-warning{margin-top:9px;padding:9px;border-radius:8px;background:#fffbeb;color:#92400e;font-size:12px}.mini-actions{display:flex;gap:7px;flex-wrap:wrap;margin-top:7px}.mini-actions button{padding:6px 8px;font-size:11px}.chunk-pipeline{display:inline-block;margin-left:6px;color:#475569;font-size:11px}

/* v1.2.3: bản xem trước phụ lục có thể mở/đóng và hiển thị nội dung thật */
.preview-help{font-size:13px;color:var(--muted);margin:0 0 10px}.preview-section{padding:0;border:1px solid var(--border);border-radius:12px;margin-bottom:12px;background:#fff;overflow:hidden}.preview-summary{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:16px 18px;cursor:pointer;list-style:none;user-select:none}.preview-summary::-webkit-details-marker{display:none}.preview-summary:hover{background:#f8fafc}.preview-summary:focus-visible{outline:3px solid #c7d2fe;outline-offset:-3px}.preview-summary strong,.preview-summary small{display:block}.preview-summary small{margin-top:4px;color:var(--muted);font-size:13px;font-weight:400}.preview-chevron{font-size:24px;color:var(--primary);transition:transform .2s ease}.preview-section[open] .preview-chevron{transform:rotate(180deg)}.preview-paper{font-family:"Times New Roman",serif;color:#111;background:#fff;border-top:1px solid var(--border);padding:24px;margin:0;overflow:auto}.preview-portrait{max-width:780px;margin:0 auto}.preview-letterhead{display:grid;grid-template-columns:48% 52%;gap:2%;text-align:center;font-size:14px;line-height:1.35}.preview-title{text-align:center;font-size:18px;margin:18px 0 6px}.preview-subtitle{text-align:center;font-size:15px;margin:4px 0}.preview-heading{font-size:16px;margin:16px 0 7px}.preview-subheading{text-align:center;font-size:15px;margin:14px 0 7px}.preview-paragraph{font-size:14px;line-height:1.4;text-align:justify;margin:6px 0}.preview-table-wrap{overflow:auto;margin:8px 0 14px}.preview-table{min-width:820px;border-collapse:collapse;table-layout:fixed}.preview-table th,.preview-table td{border:1px solid #444;padding:6px;vertical-align:top;font-family:"Times New Roman",serif;font-size:13px;white-space:normal;overflow-wrap:anywhere}.preview-table th{position:static;background:#e0f2fe;text-align:center}.preview-signature{display:grid;grid-template-columns:1fr 1fr;gap:40px;text-align:center;margin-top:18px;font-size:14px}.preview-signature span,.preview-signature strong,.preview-signature em{display:block;margin:4px 0}@media(max-width:640px){.preview-summary{padding:14px}.preview-paper{padding:16px}}