:root{
  --red:#b41624;--red2:#8f101b;--redsoft:#fff2f4;--gold:#efc54a;--ink:#172033;--muted:#667085;
  --navy:#152943;--line:#e7ebf1;--bg:#f5f7fa;--card:#fff;--green:#14945c;--amber:#b97813;--danger:#b42318;
  --shadow:0 18px 46px rgba(18,31,53,.08);--radius:24px
}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Inter,"Segoe UI",Arial,sans-serif;color:var(--ink);background:var(--bg)}button,input,textarea,select{font:inherit}button{cursor:pointer}.hidden{display:none!important}a{color:inherit;text-decoration:none}
.topbar{background:linear-gradient(180deg,#c91522,#a90f1a);border-bottom:4px solid var(--gold);color:#fff;box-shadow:0 10px 28px rgba(107,12,20,.18)}
.topbar-inner{max-width:1500px;margin:auto;min-height:105px;padding:12px 22px;display:grid;grid-template-columns:56px minmax(0,1fr) auto;gap:16px;align-items:center}.seal{width:52px;height:52px;border-radius:17px;display:grid;place-items:center;background:linear-gradient(145deg,#fff8dd,#f1d269);color:#94121e;font-size:25px;font-weight:900}.title{text-align:center;min-width:0}.title small{display:block;color:#ffd454;font-size:20px;font-weight:900;letter-spacing:.06em;margin-bottom:5px}.title h1{margin:0;font-size:22px;line-height:1.25;text-wrap:balance}.title p{margin:5px 0 0;color:rgba(255,255,255,.84);font-size:12.5px}.top-actions{display:flex;gap:8px}.top-btn{height:42px;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.12);color:#fff;border-radius:14px;padding:0 14px;font-weight:800}.top-btn.gold{background:linear-gradient(145deg,#f5ce69,#dda735);color:#623c08;border-color:#f6d982}
.site-footer{background:linear-gradient(180deg,#bd1521,#a70f1a);border-top:4px solid var(--gold);color:#fff;text-align:center;padding:12px 18px}.site-footer strong{display:block;font-size:13px}.site-footer span{display:block;margin-top:4px;font-size:11px;color:rgba(255,255,255,.82)}

/* Chat */
.chat-page{height:100dvh;overflow:hidden}.chat-app{height:100dvh;display:grid;grid-template-rows:auto minmax(0,1fr) auto}.chat-shell{width:min(1500px,100%);height:100%;min-height:0;margin:auto;padding:16px;display:grid;grid-template-columns:320px minmax(0,1fr);gap:16px}.sidebar,.chat-main{background:#fff;border:1px solid var(--line);border-radius:26px;box-shadow:var(--shadow);min-height:0}.sidebar{padding:16px;overflow:auto;display:flex;flex-direction:column;gap:13px}.assistant-card,.side-card{border:1px solid var(--line);border-radius:20px;background:linear-gradient(180deg,#fff,#fbfcfe);padding:16px}.assistant-head{display:flex;gap:10px;align-items:flex-start}.mini-logo{width:42px;height:42px;border-radius:14px;background:linear-gradient(145deg,var(--red),var(--red2));color:#fff;display:grid;place-items:center;font-weight:900}.assistant-head strong{display:block;font-size:15px;line-height:1.35}.assistant-head span{display:block;color:var(--muted);font-size:11.5px;margin-top:3px}.assistant-card p{font-size:12.8px;line-height:1.72;color:#5d6879}.side-card h3{margin:0 0 11px;color:var(--red);font-size:16px}.support-list{display:grid;gap:8px}.support-list div{border:1px solid #edf0f4;background:#fafbfd;border-radius:15px;padding:11px}.support-list b{font-size:12.5px}.support-list span{display:block;color:var(--muted);font-size:11.5px;line-height:1.5;margin-top:3px}.chat-main{display:grid;grid-template-rows:auto minmax(0,1fr) auto;overflow:hidden}.workbar{min-height:58px;padding:10px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);background:#fbfcfe}.work-title{display:flex;gap:9px;align-items:center}.status-dot{width:9px;height:9px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px rgba(20,148,92,.12)}.work-title strong{display:block;font-size:13.5px}.work-title small{display:block;color:#8b95a5;font-size:10.5px;margin-top:2px}.work-actions{display:flex;gap:7px}.soft-btn{height:34px;border:1px solid var(--line);background:#fff;border-radius:11px;color:#526174;padding:0 10px;font-size:10.5px;font-weight:800}.messages{min-height:0;overflow-y:auto;padding:22px;background:linear-gradient(180deg,#fbfcfe,#fff)}.welcome{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(290px,.65fr);gap:18px}.welcome-main,.welcome-side{border:1px solid var(--line);border-radius:26px;padding:28px;background:linear-gradient(135deg,#fff,#fffaf8);box-shadow:0 14px 34px rgba(17,24,39,.04)}.welcome-tag{display:inline-block;padding:7px 10px;border-radius:999px;background:var(--redsoft);color:var(--red);font-size:10px;font-weight:900}.welcome h2{font-size:44px;color:#c21d2b;margin:12px 0}.welcome p{color:#536176;line-height:1.75;font-size:14px}.welcome-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:20px}.welcome-grid div{border:1px solid #edf0f4;border-radius:17px;background:#fff;padding:14px}.welcome-grid b{display:block;font-size:13px}.welcome-grid span{display:block;font-size:11.5px;line-height:1.55;color:var(--muted);margin-top:4px}.welcome-side h3{margin:0 0 14px;color:var(--red);font-size:22px}.steps{display:grid;gap:10px}.steps div{display:grid;grid-template-columns:34px 1fr;gap:10px;align-items:start}.steps b{width:34px;height:34px;border-radius:11px;background:var(--red);color:#fff;display:grid;place-items:center;font-size:11px}.steps span{font-size:12px;line-height:1.58;color:#5e697a}.msg{display:flex;gap:9px;align-items:flex-start;max-width:1050px;margin:0 auto 18px}.msg.user{justify-content:flex-end}.avatar{width:34px;height:34px;flex:0 0 34px;border-radius:12px;display:grid;place-items:center;font-size:9px;font-weight:900}.msg.assistant .avatar{background:linear-gradient(145deg,var(--red),var(--red2));color:#fff}.msg.user .avatar{background:var(--navy);color:#fff}.message-body{min-width:0;max-width:min(880px,88%)}.msg.user .message-body{max-width:min(720px,82%)}.bubble{font-size:14px;line-height:1.75}.msg.assistant .bubble{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px 20px;box-shadow:0 10px 26px rgba(17,24,39,.05)}.msg.assistant .bubble:before{content:"";display:block;width:45px;height:4px;border-radius:99px;background:linear-gradient(90deg,var(--red),var(--gold));margin-bottom:12px}.msg.user .bubble{background:linear-gradient(145deg,#a61928,#7f1320);color:#fff;border-radius:18px 18px 5px 18px;padding:11px 14px;white-space:pre-wrap}.bubble p{margin:.15em 0 .75em}.bubble p:last-child{margin-bottom:.1em}.bubble h1,.bubble h2,.bubble h3{color:#9f1724}.bubble ul,.bubble ol{padding-left:22px}.meta{display:flex;gap:10px;margin-top:5px;color:#98a2b3;font-size:10px}.msg.user .meta{justify-content:flex-end}.copy-link{border:0;background:none;padding:0;color:#7d8795;font-size:10px}.composer-wrap{padding:12px 16px 15px;border-top:1px solid var(--line);background:#f8fafc}.composer{display:flex;align-items:flex-end;gap:8px;border:1px solid #dfe5ec;background:#fff;border-radius:19px;padding:8px 8px 8px 13px;box-shadow:0 10px 26px rgba(17,24,39,.06)}.composer textarea{flex:1;border:0;outline:0;resize:none;max-height:150px;min-height:42px;padding:10px 2px;background:transparent;font-size:14px}.send{width:44px;height:44px;border:0;border-radius:14px;background:linear-gradient(145deg,var(--red),var(--red2));color:#fff;font-size:19px}.composer-note{display:flex;justify-content:space-between;gap:10px;margin-top:6px;color:#98a2b3;font-size:9.5px}.typing{display:inline-flex;gap:4px}.typing i{width:6px;height:6px;border-radius:50%;background:#97a2b1;animation:bounce 1.1s infinite}.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}@keyframes bounce{50%{transform:translateY(-4px)}}

/* Setup */
.setup-page{min-height:100dvh;background:linear-gradient(145deg,#f6f8fb,#fff7f8)}.setup-wrap{max-width:1050px;margin:auto;padding:28px 16px 50px}.setup-brand{text-align:center;margin-bottom:20px}.setup-brand .seal{margin:auto}.setup-brand h1{font-size:28px;margin:10px 0 5px;color:#152943}.setup-brand p{color:var(--muted);margin:0}.stepper{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin:20px 0}.step-pill{padding:10px;border:1px solid var(--line);border-radius:13px;background:#fff;color:#7f8998;font-size:10.5px;font-weight:800;text-align:center}.step-pill.active{border-color:#e0aab1;background:#fff4f5;color:var(--red)}.setup-card{background:#fff;border:1px solid var(--line);border-radius:26px;box-shadow:var(--shadow);padding:24px;margin-bottom:14px}.setup-card h2{margin:0 0 8px;font-size:22px}.setup-card>p{color:var(--muted);font-size:12.5px;line-height:1.6}.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.check-card{border:1px solid var(--line);border-radius:16px;padding:14px;background:#fbfcfe}.check-card strong{display:block;font-size:12px}.check-card span{display:block;margin-top:5px;font-size:11px;color:var(--muted)}.ok{color:var(--green)!important}.bad{color:var(--danger)!important}

/* Admin */
.admin-page{min-height:100dvh}.admin-layout{max-width:1500px;margin:auto;padding:16px;display:grid;grid-template-columns:240px minmax(0,1fr);gap:16px}.admin-nav,.admin-content{background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow)}.admin-nav{padding:13px;height:max-content;position:sticky;top:14px}.profile{padding:13px;border-radius:16px;background:linear-gradient(145deg,#fff6f7,#fff);border:1px solid #f0dfe1;margin-bottom:10px}.profile strong{display:block;font-size:12px}.profile span{display:block;font-size:10px;color:var(--muted);margin-top:4px}.nav-btn{width:100%;border:0;background:transparent;border-radius:13px;padding:11px 12px;text-align:left;color:#526174;font-size:12px;font-weight:800;margin:2px 0}.nav-btn.active{background:#fff0f2;color:var(--red)}.admin-content{padding:20px;min-width:0}.admin-head{display:flex;justify-content:space-between;align-items:flex-start;gap:15px;margin-bottom:16px}.admin-head h2{margin:0;font-size:25px}.admin-head p{margin:5px 0 0;color:var(--muted);font-size:12px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:11px;margin-bottom:14px}.stat{border:1px solid var(--line);border-radius:18px;background:linear-gradient(180deg,#fff,#fbfcfe);padding:15px}.stat span{font-size:10px;color:var(--muted)}.stat strong{display:block;font-size:24px;margin:6px 0;color:#152943}.panel{border:1px solid var(--line);border-radius:20px;background:#fff;padding:17px;margin-bottom:14px}.panel h3{margin:0 0 6px;font-size:16px}.panel p.note{color:var(--muted);font-size:11.5px;line-height:1.55}.toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.primary,.secondary,.danger{height:40px;border-radius:12px;padding:0 14px;font-weight:800;font-size:11.5px}.primary{border:0;background:linear-gradient(145deg,var(--red),var(--red2));color:#fff}.secondary{border:1px solid var(--line);background:#fff;color:#526174}.danger{border:1px solid #f1c9c6;background:#fff2f1;color:var(--danger)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field{display:grid;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:11px;font-weight:800;color:#344054}.field input,.field textarea,.field select{width:100%;border:1px solid #dfe5ec;border-radius:12px;min-height:42px;padding:9px 11px;outline:none;background:#fff}.field textarea{min-height:90px}.field input:focus,.field textarea:focus,.field select:focus{border-color:#c98b94;box-shadow:0 0 0 3px rgba(180,22,36,.07)}.result{margin-top:10px;padding:10px 12px;border-radius:12px;background:#f5f7fa;color:#5f6b7a;font-size:11px;white-space:pre-wrap}.result.success{background:#edf9f2;color:#087443}.result.error{background:#fff0f1;color:#a51d2c}.doc-list{display:grid;gap:8px}.doc-row{display:grid;grid-template-columns:minmax(0,1.3fr) .7fr .55fr auto;gap:10px;align-items:center;border:1px solid var(--line);border-radius:16px;padding:12px}.doc-main strong{display:block;font-size:12.5px}.doc-main small{display:block;margin-top:4px;color:var(--muted);font-size:10px;line-height:1.4}.chip{display:inline-flex;align-items:center;border-radius:999px;padding:5px 8px;background:#f1f4f8;color:#536176;font-size:9.5px;font-weight:800}.chip.ready{background:#eaf8f0;color:#087443}.chip.queued,.chip.indexing{background:#fff7e6;color:#94660f}.chip.error{background:#fff0f1;color:#a51d2c}.progress{height:7px;background:#edf1f5;border-radius:999px;overflow:hidden;margin-top:5px}.progress>i{display:block;height:100%;background:linear-gradient(90deg,var(--red),var(--gold))}.table{width:100%;border-collapse:collapse;font-size:11px}.table th,.table td{border-bottom:1px solid var(--line);padding:9px;text-align:left}.login-overlay{position:fixed;inset:0;background:linear-gradient(145deg,#f5f7fb,#fff3f5);z-index:100;display:grid;place-items:center;padding:16px}.login-card{width:min(430px,100%);background:#fff;border:1px solid var(--line);border-radius:26px;box-shadow:var(--shadow);padding:26px}.login-card .seal{margin:auto}.login-card h2{text-align:center;margin:12px 0 5px}.login-card>p{text-align:center;color:var(--muted);font-size:11.5px}.toast{position:fixed;right:16px;bottom:16px;background:#18263c;color:#fff;border-radius:12px;padding:10px 13px;font-size:11px;opacity:0;transform:translateY(8px);pointer-events:none;transition:.2s;z-index:200}.toast.show{opacity:1;transform:none}

@media(max-width:1050px){.title small{font-size:16px}.title h1{font-size:17px}.chat-shell{grid-template-columns:280px minmax(0,1fr)}.welcome{grid-template-columns:1fr}.stats{grid-template-columns:1fr 1fr}}
@media(max-width:820px){.topbar-inner{min-height:78px;grid-template-columns:42px minmax(0,1fr) auto;padding:8px 10px}.seal{width:38px;height:38px;border-radius:12px;font-size:18px}.title{text-align:left}.title small{font-size:10px;margin-bottom:3px}.title h1{font-size:11.5px;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.title p{display:none}.top-btn{width:37px;height:37px;padding:0;font-size:0}.top-btn:before{content:"☰";font-size:16px}.top-btn.gold:before{content:"⚙"}.chat-app{grid-template-rows:auto minmax(0,1fr)}.chat-shell{display:block;padding:0;height:100%}.sidebar{display:none}.chat-main{height:100%;border-radius:0;border:0}.site-footer{display:none}.messages{padding:12px}.welcome-main,.welcome-side{padding:19px;border-radius:20px}.welcome h2{font-size:30px}.welcome-grid{grid-template-columns:1fr}.message-body{max-width:calc(100% - 42px)}.msg.user .message-body{max-width:88%}.bubble{font-size:13.3px}.composer-wrap{padding:8px 9px calc(10px + env(safe-area-inset-bottom))}.composer textarea{font-size:16px}.composer-note span:last-child{display:none}.admin-layout{display:block;padding:8px}.admin-nav{position:sticky;top:0;z-index:20;display:flex;overflow-x:auto;gap:4px;border-radius:0 0 15px 15px;padding:7px;margin-bottom:8px}.profile{display:none}.nav-btn{width:auto;white-space:nowrap;flex:0 0 auto}.admin-content{border-radius:18px;padding:13px}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.doc-row{grid-template-columns:minmax(0,1fr) auto}.doc-row>div:nth-child(2),.doc-row>div:nth-child(3){display:none}.stepper{grid-template-columns:1fr 1fr}.check-grid{grid-template-columns:1fr}.setup-card{padding:18px}.setup-brand h1{font-size:22px}}
@media(max-width:520px){.stats{grid-template-columns:1fr 1fr}.stat{padding:12px}.stat strong{font-size:20px}.admin-head{flex-direction:column}.doc-row{padding:10px}.work-actions #copyAll{display:none}.welcome-side{display:none}}


/* ===== V3.5.2 · Nút quay về Cổng ứng dụng danguythanhkhe.vn ===== */
.portal-btn{display:inline-flex;align-items:center;gap:7px;text-decoration:none;background:rgba(255,255,255,.16);white-space:nowrap}
.portal-btn::after{content:"↗";font-size:13px;opacity:.85}
.portal-btn:hover{background:rgba(255,255,255,.23);transform:translateY(-1px)}
.setup-top-actions{max-width:1180px;margin:0 auto 12px;display:flex;justify-content:flex-start}
.setup-portal-link{display:inline-flex;align-items:center;gap:7px;text-decoration:none;border:1px solid #e3e8ef;background:#fff;color:#8e1723;border-radius:12px;padding:9px 12px;font-size:12px;font-weight:800;box-shadow:0 7px 18px rgba(15,23,42,.05)}
.setup-portal-link:hover{background:#fff7f8;border-color:#e1b8be}
@media(max-width:1050px){.top-actions{gap:6px}.top-btn{padding:0 11px}.portal-btn{max-width:150px;overflow:hidden;text-overflow:ellipsis}}
@media(max-width:820px){
  .top-actions{gap:5px}
  .top-btn.portal-btn:before{content:"⌂";font-size:18px}
  .top-btn.portal-btn:after{display:none}
  .top-btn.newchat-btn:before{content:"+";font-size:21px}
  .top-btn.home-btn:before{content:"⌂";font-size:18px}
  .top-btn.admin-btn:before{content:"⚙";font-size:16px}
  .top-btn.logout-btn:before{content:"⇥";font-size:17px}
  .setup-top-actions{margin-bottom:9px}
  .setup-portal-link{font-size:11px;padding:8px 10px}
}

.security-warning{display:grid;gap:6px;padding:13px 14px;border:1px solid #edd7a7;background:#fff9ea;border-radius:14px;color:#6f571f}.security-warning strong{font-size:12.5px;color:#875f12}.security-warning span{font-size:11.5px;line-height:1.6}

/* ===== V3.6.3 · Web fallback nguồn chính thống ===== */
.web-source-box{margin-top:16px;padding:12px 13px;border:1px solid #d9e7df;border-radius:14px;background:#f7fbf9;display:grid;gap:9px}.web-source-box>div:first-child{display:flex;align-items:center;gap:8px;flex-wrap:wrap;color:#5e6d66;font-size:11px;font-weight:700}.web-source-badge{display:inline-flex;align-items:center;padding:4px 8px;border-radius:999px;background:#e6f6ed;color:#087442;font-size:10px;font-weight:900}.web-source-links{display:flex;gap:7px;flex-wrap:wrap}.web-source-links a{max-width:100%;display:inline-flex;align-items:center;padding:6px 9px;border-radius:999px;border:1px solid #d9e4df;background:#fff;color:#245944;text-decoration:none;font-size:10.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.web-source-links a:hover{border-color:#abcdbd;background:#f4fbf7}@media(max-width:640px){.web-source-links{display:grid}.web-source-links a{width:100%;border-radius:11px}}

/* V3.6.4 indexing status */
.status-note{display:block;margin-top:5px;color:#758195;font-size:10.5px;line-height:1.45}.doc-row .chip.waiting{background:#fff5df;color:#9a6410;border-color:#f1d99e}.doc-row .chip.indexing{background:#fff5df;color:#9a6410}.doc-row .chip.ready{background:#eaf8f0;color:#087443}.doc-row .progress+small{display:block;margin-top:4px;color:#98a2b3;font-size:9.5px}

/* ===== V3.9.0 · Knowledge Control Dashboard ===== */
.knowledge-info{display:flex;gap:9px;align-items:flex-start;margin-bottom:14px;padding:12px 14px;border:1px solid #dbe7ef;background:#f7fbfd;border-radius:15px;color:#496171;font-size:11.5px;line-height:1.55}.knowledge-info strong{color:#17334b;white-space:nowrap}.knowledge-stats{grid-template-columns:repeat(4,1fr)}.knowledge-dashboard-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.knowledge-dashboard-grid .panel{margin-bottom:0}.mini-bars{display:grid;gap:10px;margin-top:12px}.mini-bar-row{display:grid;gap:5px}.mini-bar-row>div{display:flex;justify-content:space-between;gap:12px;align-items:center;font-size:10.5px;color:#536176}.mini-bar-row>div span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mini-bar-row>div b{color:#22344c}.mini-bar-row>i{height:7px;background:#eef2f6;border-radius:999px;overflow:hidden}.mini-bar-row>i>em{display:block;height:100%;background:linear-gradient(90deg,var(--red),var(--gold));border-radius:999px}.quality-list{display:grid;gap:4px;margin-top:10px}.quality-row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:8px 0;border-bottom:1px dashed #e9edf2;font-size:10.8px}.quality-row:last-child{border-bottom:0}.quality-row span{color:#667386}.quality-row b{color:#253851;text-align:right}.quality-row b small{font-weight:600;color:#98a2b3}.warn-text{color:#a46609!important}.empty-mini{font-size:10.8px;color:#98a2b3;padding:8px 0}.knowledge-split{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:12px}.knowledge-split h4{margin:0 0 8px;font-size:12px;color:#3a4d64}.compact-list{display:grid;gap:7px}.compact-item{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;padding:9px 10px;border:1px solid #edf0f4;border-radius:12px;background:#fbfcfd}.compact-item>div{min-width:0}.compact-item strong{display:block;font-size:10.8px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.compact-item small{display:block;margin-top:3px;font-size:9.7px;color:#8994a5;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.compact-item>span{font-size:9.8px;color:#718096;white-space:nowrap}.knowledge-list-head{justify-content:space-between;align-items:center}.knowledge-filters{display:flex;gap:7px;align-items:center;flex-wrap:wrap}.knowledge-filters input,.knowledge-filters select{height:38px;border:1px solid #dfe5ec;border-radius:11px;padding:0 10px;background:#fff;font-size:10.8px}.knowledge-filters input{min-width:240px}.list-count{margin-top:8px;font-size:10px;color:#98a2b3}.knowledge-doc-row{grid-template-columns:minmax(0,1.45fr) .65fr .55fr minmax(260px,auto)}.doc-keywords{color:#7f6a3d!important}.doc-actions{justify-content:flex-end}.doc-actions button{height:34px;padding:0 10px}.chip.inactive{background:#f1f3f5;color:#7b8797}.modal-overlay{position:fixed;inset:0;background:rgba(18,29,45,.48);z-index:250;display:grid;place-items:center;padding:18px;backdrop-filter:blur(3px)}.modal-card{width:min(760px,100%);max-height:90vh;overflow:auto;background:#fff;border-radius:22px;box-shadow:0 24px 80px rgba(15,23,42,.25);padding:20px;border:1px solid #e6e9ee}.modal-head{display:flex;justify-content:space-between;align-items:flex-start;gap:14px;margin-bottom:15px}.modal-head h3{margin:0;font-size:18px}.modal-head small{display:block;margin-top:5px;color:#7d8999;font-size:10.5px}.modal-close{border:0;background:#f3f5f7;width:34px;height:34px;border-radius:10px;font-size:20px;color:#536176;cursor:pointer}.replace-box{margin-top:16px;padding-top:15px;border-top:1px solid var(--line)}.replace-box h4{margin:0 0 4px;font-size:13px}.replace-box input[type=file]{max-width:430px;font-size:10.5px}.hidden.modal-overlay{display:none!important}
@media(max-width:1100px){.knowledge-stats{grid-template-columns:repeat(2,1fr)}.knowledge-doc-row{grid-template-columns:minmax(0,1fr) auto}.knowledge-doc-row>div:nth-child(2),.knowledge-doc-row>div:nth-child(3){display:none}.doc-actions{justify-content:flex-start}}
@media(max-width:820px){.knowledge-dashboard-grid,.knowledge-split{grid-template-columns:1fr}.knowledge-info{display:grid}.knowledge-filters{width:100%}.knowledge-filters input,.knowledge-filters select{flex:1 1 150px;min-width:0}.doc-actions{grid-column:1/-1}.modal-card{padding:15px;border-radius:17px}.replace-box .toolbar{align-items:stretch}.replace-box input[type=file]{width:100%;max-width:none}}

/* ===== V3.9.0 · Grounded source cards ===== */
.internal-source-links{display:grid;gap:7px;width:100%}.internal-source-item{display:grid;gap:3px;padding:8px 10px;border:1px solid #d9e4df;border-radius:11px;background:#fff;min-width:0}.internal-source-item b{font-size:10.5px;color:#234b3c;line-height:1.45;overflow-wrap:anywhere}.internal-source-item span{font-size:9.8px;color:#738078;line-height:1.4}.internal-source-box .web-source-badge{background:#eef4fb;color:#274f7a}

/* ===== V3.9.7 · Complete Section RAG + Conversation Intelligence ===== */
.simple-source-line{margin-top:14px;padding-top:10px;border-top:1px solid #e8ecea;display:flex;gap:6px;align-items:flex-start;flex-wrap:wrap;font-size:12px;line-height:1.55;color:#65716c}.simple-source-label{font-weight:800;color:#4c5853;white-space:nowrap}.simple-source-items{display:inline;min-width:0}.simple-source-items strong{font-weight:700;color:#34433d}.simple-source-items a{color:#245944;text-decoration:underline;text-underline-offset:2px;overflow-wrap:anywhere}.simple-source-items a:hover{color:#0b6d46}.source-sep{color:#87918d}@media(max-width:640px){.simple-source-line{font-size:11.5px}}

/* V3.9.7 · Bảng trong câu trả lời hội thoại */
.table-scroll{max-width:100%;overflow-x:auto;margin:10px 0 4px;border:1px solid #e3e8ef;border-radius:12px;background:#fff}
.chat-table{width:100%;border-collapse:collapse;min-width:520px;font-size:.95em}
.chat-table th,.chat-table td{padding:10px 12px;border-bottom:1px solid #edf0f4;border-right:1px solid #edf0f4;text-align:left;vertical-align:top;line-height:1.55}
.chat-table th:last-child,.chat-table td:last-child{border-right:0}.chat-table tbody tr:last-child td{border-bottom:0}.chat-table th{font-weight:700;background:#f8fafc}

/* ===== V3.9.8 · Home UI + Branding Manager ===== */
.chat-shell-v398{width:min(1660px,100%);grid-template-columns:minmax(0,1fr);padding:16px 18px;gap:0}
.chat-shell-v398 .chat-main{border-radius:0;background:transparent;border:0;box-shadow:none}
.chat-brand-header{position:relative;overflow:hidden;border-bottom:0;background:linear-gradient(110deg,#b90012 0%,#d00818 45%,#a80012 100%)}
.chat-brand-header:after{content:"";position:absolute;right:-6%;bottom:-55px;width:58%;height:135px;border-top:1px solid rgba(255,225,145,.18);border-radius:50%;transform:rotate(-6deg);box-shadow:0 -16px 0 -15px rgba(255,225,145,.15),0 -32px 0 -31px rgba(255,225,145,.12);pointer-events:none}
.chat-brand-header .topbar-inner{position:relative;z-index:1;max-width:1660px;min-height:112px;grid-template-columns:108px minmax(0,1fr) auto;padding:0 24px 0 0;gap:22px}
.party-seal{align-self:stretch;min-height:112px;display:grid;place-items:center;background:linear-gradient(180deg,#e21113,#b30010);color:#ffdf2e;font-size:62px;font-weight:900;text-shadow:0 2px 0 rgba(113,0,0,.25);box-shadow:8px 0 28px rgba(90,0,0,.16)}
.chat-brand-title{text-align:left}.chat-brand-title h1{font-size:29px;letter-spacing:.015em;text-shadow:0 1px 2px rgba(0,0,0,.18)}.chat-brand-title small{font-size:19px;margin:8px 0 0;color:#ffe54b;letter-spacing:.035em}
.chat-brand-header .top-actions{align-items:center}.chat-brand-header .top-btn{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.18);backdrop-filter:blur(4px)}.chat-brand-header .top-btn.gold{background:#ffd957;color:#7a2500;border-color:#ffe68f}
.welcome-state .workbar{display:none}.welcome-state .messages{padding:24px 18px 20px;overflow:auto;background:linear-gradient(180deg,#fffaf6 0%,#fff 68%)}.welcome-state .chat-main{grid-template-rows:minmax(0,1fr)}
.landing-v398{min-height:100%;display:grid;grid-template-columns:290px minmax(620px,1fr) 320px;gap:16px;max-width:1615px;margin:0 auto;align-items:stretch}
.landing-poster-card,.landing-center-card,.landing-suggestions-card{border:1px solid #f1ded5;border-radius:20px;background:#fffdfb;box-shadow:0 9px 26px rgba(112,33,22,.045);overflow:hidden}
.landing-poster-card{padding:14px;display:flex;align-items:stretch}.landing-poster-card img{display:block;width:100%;height:100%;max-height:650px;min-height:540px;object-fit:cover;border-radius:18px;background:linear-gradient(180deg,#fff0e8,#a40014)}
.landing-center-card{position:relative;padding:18px 32px 20px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:radial-gradient(circle at 88% 22%,rgba(255,194,102,.15),transparent 24%),linear-gradient(135deg,#fffdfb,#fff9f5)}
.landing-center-card:after{content:"✦  ✧  ✦";position:absolute;right:30px;top:38px;color:#f1c889;font-size:36px;letter-spacing:13px;opacity:.48;transform:rotate(-9deg);pointer-events:none}
.landing-brand-logo{position:relative;z-index:1;width:104px;height:104px;border-radius:50%;display:grid;place-items:center;margin-bottom:8px;background:#fff;border:1px solid #f1d5ca;box-shadow:0 7px 20px rgba(160,26,24,.08);overflow:hidden}.landing-brand-logo img{width:100%;height:100%;object-fit:contain;padding:4px;background:#fff}
.landing-center-card h2{position:relative;z-index:1;margin:0;color:#17243a;font-size:31px;line-height:1.23;letter-spacing:-.01em}.landing-center-card h2 span{color:#bd1420;font-size:33px}.landing-intro{position:relative;z-index:1;margin:15px 0 0;color:#3f526a;font-size:16px;line-height:1.62}
.landing-features{position:relative;z-index:1;width:100%;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:26px}.feature-card{min-height:170px;border:1px solid #f0ddd5;border-radius:18px;background:rgba(255,255,255,.88);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:14px 10px;color:#27384d;box-shadow:0 6px 16px rgba(34,30,25,.03);transition:.18s ease}.feature-card:hover{transform:translateY(-3px);box-shadow:0 12px 24px rgba(93,40,32,.09);border-color:#e7c3b7}.feature-card i{width:56px;height:56px;border-radius:15px;display:grid;place-items:center;color:#fff;font-style:normal;font-size:27px;font-weight:900;margin-bottom:13px;box-shadow:0 7px 15px rgba(0,0,0,.10)}.feature-card b{font-size:17px;margin-bottom:8px}.feature-card span{font-size:13px;line-height:1.5;color:#5a6778}.feature-card.red i{background:linear-gradient(145deg,#dd091a,#b80013)}.feature-card.red b{color:#c4111e}.feature-card.amber i{background:linear-gradient(145deg,#ffba20,#f19400)}.feature-card.amber b{color:#b86a00}.feature-card.blue i{background:linear-gradient(145deg,#2387ef,#0662c8)}.feature-card.blue b{color:#0969ca}.feature-card.green i{background:linear-gradient(145deg,#24bc73,#079553)}.feature-card.green b{color:#078c51}
.welcome-composer-slot{position:relative;z-index:2;width:100%;margin-top:24px}.welcome-composer-slot .composer-wrap{padding:0;border:0;background:transparent}.welcome-composer-slot .composer{border-radius:34px;padding:8px 10px 8px 20px;border:1px solid #efd9cf;box-shadow:0 0 0 7px rgba(255,255,255,.7),0 8px 24px rgba(111,31,21,.07)}.welcome-composer-slot .composer textarea{min-height:46px;padding:11px 3px;font-size:15px}.welcome-composer-slot .send{width:52px;height:52px;border-radius:50%;background:linear-gradient(145deg,#e10018,#b70014);font-size:23px}.welcome-composer-slot .composer-note{display:none}
.landing-suggestions-card{padding:28px 20px;background:linear-gradient(180deg,#fffdfb,#fffaf6)}.landing-suggestions-card h3{margin:0 0 28px;color:#c31820;font-size:21px;display:flex;align-items:center;gap:10px}.landing-suggestions-card h3 span{font-size:27px}.suggestion-list{display:grid;gap:16px}.suggestion-list button{position:relative;width:100%;min-height:96px;text-align:left;border:1px solid #f0d9cf;background:rgba(255,255,255,.78);border-radius:15px;padding:17px 42px 17px 16px;color:#25364c;font-size:14.5px;line-height:1.55;box-shadow:0 5px 13px rgba(60,30,25,.025);transition:.15s ease}.suggestion-list button:hover{border-color:#e8b9aa;background:#fff;transform:translateY(-1px)}.suggestion-list button b{position:absolute;right:15px;top:50%;transform:translateY(-50%);font-size:30px;color:#e11822;font-weight:400}
.welcome-state .site-footer{min-height:50px;padding:8px 16px}.welcome-state .site-footer strong,.welcome-state .site-footer span{font-size:10px;opacity:.88}

/* Admin · cấu hình logo và ảnh trang chủ */
.branding-admin-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.branding-card{border:1px solid var(--line);border-radius:18px;padding:16px;background:#fbfcfd}.branding-card h4{margin:0 0 5px;font-size:14px}.branding-card>p{margin:0 0 12px;color:var(--muted);font-size:11px;line-height:1.55}.branding-preview{height:230px;border:1px dashed #d9dee6;border-radius:15px;background:linear-gradient(145deg,#fff,#faf7f5);display:grid;place-items:center;overflow:hidden;margin-bottom:12px}.branding-preview.logo-preview img{max-width:150px;max-height:150px;object-fit:contain}.branding-preview.side-preview img{width:100%;height:100%;object-fit:contain}.branding-file-state{display:block;color:#7a8798;font-size:10.5px;margin:7px 0 0}.branding-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.branding-upload-note{margin-top:13px;padding:11px 13px;border-radius:13px;background:#f7fbfd;border:1px solid #dce9f1;color:#526779;font-size:11px;line-height:1.6}

@media(max-width:1280px){.landing-v398{grid-template-columns:230px minmax(560px,1fr) 280px}.landing-poster-card img{min-height:500px}.landing-center-card{padding-left:22px;padding-right:22px}.landing-features{gap:10px}.feature-card{min-height:155px}.feature-card b{font-size:15px}.feature-card span{font-size:12px}.chat-brand-header .topbar-inner{grid-template-columns:90px minmax(0,1fr) auto}.party-seal{font-size:52px}.chat-brand-title h1{font-size:25px}.chat-brand-title small{font-size:17px}}
@media(max-width:1040px){.landing-v398{grid-template-columns:minmax(0,1fr) 285px}.landing-poster-card{display:none}.landing-center-card h2{font-size:28px}.landing-center-card h2 span{font-size:30px}.chat-brand-header .top-actions .portal-btn{display:none}.branding-admin-grid{grid-template-columns:1fr}}
@media(max-width:820px){.chat-brand-header .topbar-inner{min-height:82px;grid-template-columns:68px minmax(0,1fr) auto;padding-right:10px;gap:11px}.party-seal{min-height:82px;font-size:39px}.chat-brand-title h1{font-size:18px}.chat-brand-title small{font-size:12px;margin-top:4px}.chat-brand-header .top-actions{gap:4px}.chat-brand-header .top-btn{width:38px;height:38px;padding:0;font-size:0;display:grid;place-items:center}.chat-shell-v398{padding:8px}.welcome-state .messages{padding:10px}.landing-v398{grid-template-columns:1fr}.landing-suggestions-card{padding:18px}.landing-suggestions-card h3{margin-bottom:13px}.suggestion-list{grid-template-columns:1fr 1fr 1fr;gap:8px}.suggestion-list button{min-height:78px;font-size:12px;padding:12px 25px 12px 11px}.suggestion-list button b{right:8px}.landing-center-card{padding:18px 16px}.landing-brand-logo{width:82px;height:82px}.landing-center-card h2{font-size:24px}.landing-center-card h2 span{font-size:25px}.landing-intro{font-size:14px}.desktop-only{display:none}.landing-features{grid-template-columns:repeat(2,1fr);margin-top:18px}.feature-card{min-height:130px}.feature-card i{width:46px;height:46px;font-size:22px;margin-bottom:8px}.welcome-composer-slot{margin-top:18px}.welcome-state .site-footer{display:none}}
@media(max-width:560px){.chat-brand-title h1{font-size:15px}.chat-brand-title small{font-size:10px}.party-seal{font-size:34px}.landing-center-card:after{display:none}.landing-brand-logo{width:72px;height:72px}.landing-center-card h2{font-size:21px}.landing-center-card h2 span{font-size:22px}.landing-intro{font-size:13px}.landing-features{gap:8px}.feature-card{min-height:118px;padding:10px 6px}.feature-card b{font-size:13px}.feature-card span{font-size:10.8px}.feature-card i{width:42px;height:42px}.suggestion-list{grid-template-columns:1fr}.suggestion-list button{min-height:62px}.welcome-composer-slot .composer{padding-left:14px}.branding-preview{height:190px}}


/* ===== V3.9.9 · Header Branding + UI Polish ===== */
.chat-brand-header .topbar-inner{grid-template-columns:104px minmax(300px,1fr) auto;padding-right:28px;gap:24px}
.party-seal{padding:10px;overflow:hidden}.party-seal img{display:block;width:100%;height:100%;max-width:78px;max-height:78px;object-fit:contain;filter:drop-shadow(0 2px 1px rgba(90,0,0,.20))}
.chat-brand-header .top-actions{display:flex;align-items:center;justify-content:flex-end;gap:10px;padding:7px;border:1px solid rgba(255,255,255,.13);background:rgba(112,0,13,.12);border-radius:18px;min-width:0}
.chat-brand-header .top-btn{height:44px;min-width:0;padding:0 16px;border-radius:13px;display:inline-flex;align-items:center;justify-content:center;gap:7px;white-space:nowrap;line-height:1;font-size:13.5px;font-weight:800;box-shadow:inset 0 1px 0 rgba(255,255,255,.08);transition:background .16s ease,transform .16s ease,border-color .16s ease}
.chat-brand-header .top-btn:hover{transform:translateY(-1px);background:rgba(255,255,255,.17);border-color:rgba(255,255,255,.28)}
.chat-brand-header .top-btn.gold:hover{background:#ffe375;border-color:#fff0ad}
.top-btn-icon{display:inline-grid;place-items:center;font-size:16px;line-height:1}.top-btn-label{display:inline-block;line-height:1.15}
.chat-brand-header .portal-btn::after{display:none}
.site-footer{min-height:48px;padding:10px 18px;display:grid;place-items:center}.site-footer strong{font-size:13px;line-height:1.35;letter-spacing:.015em}.site-footer span{display:none}
.welcome-state .site-footer{min-height:48px;padding:10px 16px}.welcome-state .site-footer strong{font-size:12px;opacity:.95}
.branding-admin-grid-v399{grid-template-columns:repeat(3,minmax(0,1fr))}.branding-preview.header-preview img{max-width:150px;max-height:150px;object-fit:contain}.branding-text-card{margin-top:16px;border:1px solid var(--line);border-radius:16px;background:#fbfcfd;padding:14px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:end}.branding-text-card small{color:var(--muted);font-size:10.5px;line-height:1.5}.branding-text-card .secondary{white-space:nowrap;margin-bottom:1px}
@media(max-width:1280px){.chat-brand-header .topbar-inner{grid-template-columns:86px minmax(260px,1fr) auto;padding-right:18px;gap:16px}.party-seal{padding:8px}.party-seal img{max-width:66px;max-height:66px}.chat-brand-header .top-actions{gap:7px;padding:6px}.chat-brand-header .top-btn{height:41px;padding:0 11px;font-size:12px;gap:5px}.top-btn-icon{font-size:14px}.branding-admin-grid-v399{grid-template-columns:1fr 1fr}}
@media(max-width:980px){.chat-brand-header .topbar-inner{grid-template-columns:72px minmax(0,1fr) auto;gap:12px}.party-seal img{max-width:54px;max-height:54px}.chat-brand-header .top-actions{padding:5px;gap:5px}.chat-brand-header .top-btn{width:40px;height:40px;padding:0}.chat-brand-header .top-btn .top-btn-label{display:none}.chat-brand-header .top-btn .top-btn-icon{font-size:17px}.chat-brand-header .top-actions .portal-btn{display:inline-flex}.chat-brand-title h1{font-size:20px}.chat-brand-title small{font-size:13px}.branding-text-card{grid-template-columns:1fr}.branding-text-card .secondary{justify-self:start}}
@media(max-width:820px){.chat-brand-header .topbar-inner{min-height:78px;grid-template-columns:62px minmax(0,1fr) auto;padding:0 9px 0 0;gap:9px}.party-seal{min-height:78px;padding:7px}.party-seal img{max-width:48px;max-height:48px}.chat-brand-header .top-actions{background:transparent;border:0;padding:0;gap:4px}.chat-brand-header .top-btn{width:37px;height:37px;border-radius:11px}.chat-brand-header .top-btn:before,.chat-brand-header .top-btn:after{display:none!important}.chat-brand-title h1{font-size:16px}.chat-brand-title small{font-size:10.5px}.branding-admin-grid-v399{grid-template-columns:1fr}}
@media(max-width:560px){.chat-brand-header .topbar-inner{grid-template-columns:54px minmax(0,1fr) auto}.party-seal img{max-width:42px;max-height:42px}.chat-brand-title h1{font-size:14px}.chat-brand-title small{font-size:9.5px}.chat-brand-header .top-btn{width:34px;height:34px}.chat-brand-header .top-btn .top-btn-icon{font-size:15px}}
/* Giữ đủ ba nút header ở desktop/laptop; chỉ chuyển sang icon khi màn hình hẹp. */
.chat-brand-header .top-actions .portal-btn{display:inline-flex}

/* ===== V3.10.0 · Quota Monitor cấp 2 ===== */
.password-wrap{position:relative;display:flex;align-items:center}.password-wrap input{padding-right:48px!important}.password-eye{position:absolute;right:6px;top:50%;transform:translateY(-50%);width:36px;height:32px;border:0;border-radius:9px;background:transparent;color:#667386;display:grid;place-items:center;font-size:17px;line-height:1;cursor:pointer;transition:.18s}.password-eye:hover,.password-eye.active{background:#f2f4f7;color:#18263c}.quota-login-overlay{z-index:320;background:linear-gradient(145deg,rgba(245,247,251,.98),rgba(255,243,245,.98));backdrop-filter:blur(5px)}.quota-login-card{width:min(450px,100%)}.quota-seal{background:linear-gradient(145deg,#8e1723,#c11d2d)!important;color:#fff!important;font-weight:900}.quota-nav-btn{display:flex;align-items:center;justify-content:space-between;gap:8px}.quota-lock-mark{font-size:12px;opacity:.8}.quota-security-note{margin-bottom:14px}.quota-toolbar select{height:38px;border:1px solid #dfe5ec;border-radius:11px;padding:0 10px;background:#fff}.inline-label{font-size:10.5px;font-weight:800;color:#667386}.quota-period-stats{grid-template-columns:repeat(4,minmax(0,1fr))}.quota-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.quota-grid>.panel{margin-bottom:14px}.table-scroll{width:100%;overflow:auto;border-radius:12px}.quota-table{min-width:690px}.quota-table th{position:sticky;top:0;background:#fafbfc;z-index:1;white-space:nowrap}.quota-table td,.quota-table th{font-variant-numeric:tabular-nums}.quota-table td strong{color:#243851}.quota-footnote{margin:-2px 2px 12px;color:#7a8797;font-size:10.5px}.admin-nav .quota-nav-btn.active{background:linear-gradient(145deg,#fff0f2,#fff7e7)}
@media(max-width:1100px){.quota-period-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.quota-grid{grid-template-columns:1fr}}
@media(max-width:720px){.quota-period-stats{grid-template-columns:1fr}.quota-toolbar{align-items:flex-start!important}.quota-toolbar>div:last-child{width:100%;justify-content:space-between}.quota-login-card{padding:22px 18px}}


/* V3.10.1 · Supabase Keep Alive monitor */
.supabase-monitor-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.supabase-monitor-grid .panel{margin:0}.quality-row .ok{color:#0b8a58}.chip.error{background:#ffe8e8;color:#a51422}.chip.ready{background:#e8f8ef;color:#08784c}@media(max-width:900px){.supabase-monitor-grid{grid-template-columns:1fr}}

/* V3.10.2 · Supabase Keep Alive UI hotfix */
.primary:disabled,.secondary:disabled,.danger:disabled{opacity:.62;cursor:wait;transform:none!important}.btn-busy{position:relative;padding-left:32px!important}.btn-busy:before{content:'';position:absolute;left:12px;width:12px;height:12px;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:tkSpin .7s linear infinite}@keyframes tkSpin{to{transform:rotate(360deg)}}