*{box-sizing:border-box}body{margin:0;background:#eef2f5;color:#243746;font-family:system-ui,-apple-system,Segoe UI,Arial,sans-serif}.wrap{max-width:1180px;margin:auto;padding:0 16px}header{background:#185f8d;color:#fff;box-shadow:0 2px 8px #0002}.nav{min-height:64px;display:flex;align-items:center;gap:22px}.logo{font-size:24px;font-weight:800;color:#fff;text-decoration:none}.nav form{flex:1}.nav input{max-width:360px;width:100%;background:#fff;border:0;border-radius:20px;padding:10px 15px}.nav nav{display:flex;gap:14px}.nav a{color:#fff;text-decoration:none}main{padding-top:22px!important;padding-bottom:50px!important}.card,.node,.post{background:#fff;border:1px solid #d7e0e6;border-radius:9px;margin-bottom:12px;box-shadow:0 1px 2px #00000008}.card{padding:18px}.category{background:#185f8d;color:#fff;padding:11px 15px;border-radius:8px 8px 0 0;font-weight:700}.node{padding:15px}.node h3,.thread h3{margin:0 0 5px}.node a,.thread a,.userlink{color:#166d9d;text-decoration:none;font-weight:700}.muted{color:#71818c;font-size:13px}.thread{display:grid;grid-template-columns:1fr 180px;padding:13px 15px;border-bottom:1px solid #e6ecef}.thread:last-child{border-bottom:0}.btn,button{display:inline-block;background:#1678aa;color:#fff;border:0;border-radius:6px;padding:9px 14px;text-decoration:none;cursor:pointer;font-weight:650}.btn.gray{background:#667985}.actions{display:flex;gap:8px;margin:12px 0}.form input,.form textarea,.form select{width:100%;padding:10px;border:1px solid #c8d3da;border-radius:6px;margin:5px 0 13px}.form textarea{min-height:180px}.post{display:grid;grid-template-columns:180px 1fr;overflow:hidden}.postUser{background:#f5f8fa;padding:16px;border-right:1px solid #e0e7eb}.postBody{padding:16px;min-height:130px}.postMessage{white-space:pre-wrap;line-height:1.55}.postMeta{font-size:12px;color:#77858e;border-bottom:1px solid #edf1f3;padding-bottom:8px;margin-bottom:12px}.pager{display:flex;gap:5px;margin:15px 0}.pager a,.pager b{padding:7px 10px;background:#fff;border:1px solid #ccd7de;border-radius:5px;text-decoration:none}.pager b{background:#185f8d;color:#fff}.stats{display:flex;gap:18px}.badge{font-size:11px;background:#e8f3f9;color:#176a98;border-radius:12px;padding:3px 7px}.notice{padding:12px;background:#e9f7ed;border:1px solid #a9d6b4;border-radius:7px}.error{padding:12px;background:#fff0f0;border:1px solid #e7aaaa;border-radius:7px}footer{background:#fff;border-top:1px solid #dce4e8;padding:22px;color:#73818a}@media(max-width:700px){.nav{flex-wrap:wrap;padding:12px 16px}.nav form{order:3;flex-basis:100%}.post{grid-template-columns:1fr}.postUser{border-right:0;border-bottom:1px solid #e0e7eb}.thread{grid-template-columns:1fr}.thread .muted:last-child{margin-top:7px}}

.vbEditor{border:1px solid #c8d3da;border-radius:7px;background:#fff;overflow:hidden;margin:5px 0 13px}.vbEditorToolbar{display:flex;gap:3px;flex-wrap:wrap;padding:7px;background:#f3f6f8;border-bottom:1px solid #d8e1e6}.vbEditorToolbar button{background:#fff;color:#334a59;border:1px solid #cbd6dc;border-radius:4px;padding:6px 9px;min-width:34px;font-weight:700}.vbEditorToolbar button:hover{background:#e8f2f8}.form .vbEditor textarea,.vbEditor textarea{display:block;width:100%;min-height:220px;margin:0;border:0;border-radius:0;padding:12px;resize:vertical;outline:none;font:15px/1.55 system-ui,-apple-system,"Segoe UI",Arial,sans-serif}.vbEditorHelp{padding:5px 10px;background:#fafbfc;border-top:1px solid #edf0f2;color:#7a8790;font-size:11px}.bbCodeBlock{margin:10px 0;padding:10px 12px;border-left:3px solid #5b91b0;background:#f5f8fa}.bbCodeQuote .bbCodeTitle{font-weight:700;margin-bottom:6px}.bbCodeCode{overflow:auto;white-space:pre-wrap;font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.bbCodeImage{max-width:100%;height:auto}.bbCodeList{margin:8px 0 8px 24px}

/* Core 3.6.6.0 - advertising */
html,body{width:100%;margin:0;padding:0}
.wrap{box-sizing:border-box!important;width:90%!important;max-width:none!important;margin-left:auto!important;margin-right:auto!important}
.vbAd{box-sizing:border-box;width:100%;margin:10px 0;padding:0;line-height:0;overflow:hidden}
.vbAd a{display:block;margin:0;padding:0;line-height:0}
.vbAd img{display:block;width:100%;height:auto;margin:0;padding:0;border:0;object-fit:contain}
.vbAd-home_top{margin-top:0}
@media(max-width:700px){.wrap{width:96%!important}.vbAd{margin:7px 0}}

/* Core 3.6.6.1 - advertising display fix */
main.wrap>.vbAd-home_top{
 display:block!important;
 width:100%!important;
 max-width:100%!important;
 height:auto!important;
 margin:0 0 12px 0!important;
 padding:0!important;
 overflow:hidden!important;
 line-height:0!important;
 background:transparent!important;
}
main.wrap>.vbAd-home_top>a{display:block!important;width:100%!important;margin:0!important;padding:0!important}
main.wrap>.vbAd-home_top img{
 display:block!important;
 width:100%!important;
 max-width:100%!important;
 height:auto!important;
 max-height:none!important;
 margin:0!important;
 padding:0!important;
 border:0!important;
 position:static!important;
 transform:none!important;
 object-fit:contain!important;
}


/* Core 3.6.6.2 - home advertising banner: crop embedded white canvas */
main.wrap>.vbAd-home_top{
  width:100% !important;
  aspect-ratio:13 / 1 !important;
  height:auto !important;
  margin:0 0 12px 0 !important;
  padding:0 !important;
  overflow:hidden !important;
  line-height:0 !important;
  background:transparent !important;
}
main.wrap>.vbAd-home_top>a{
  display:block !important;
  width:100% !important;
  height:100% !important;
  margin:0 !important;
  padding:0 !important;
}
main.wrap>.vbAd-home_top img{
  display:block !important;
  width:100% !important;
  height:100% !important;
  max-width:none !important;
  max-height:none !important;
  margin:0 !important;
  padding:0 !important;
  position:static !important;
  transform:none !important;
  object-fit:cover !important;
  object-position:center center !important;
}


/* Core 3.6.6.3 - thread advertising banners: same clean crop as home banner */
main.wrap>.vbAd-thread_top,
main.wrap>.vbAd-thread_bottom{
  box-sizing:border-box !important;
  width:100% !important;
  aspect-ratio:13 / 1 !important;
  height:auto !important;
  margin:10px 0 12px 0 !important;
  padding:0 !important;
  overflow:hidden !important;
  line-height:0 !important;
  background:transparent !important;
}
main.wrap>.vbAd-thread_top>a,
main.wrap>.vbAd-thread_bottom>a{
  display:block !important;
  width:100% !important;
  height:100% !important;
  margin:0 !important;
  padding:0 !important;
}
main.wrap>.vbAd-thread_top img,
main.wrap>.vbAd-thread_bottom img{
  display:block !important;
  width:100% !important;
  height:100% !important;
  max-width:none !important;
  max-height:none !important;
  margin:0 !important;
  padding:0 !important;
  border:0 !important;
  position:static !important;
  transform:none !important;
  object-fit:cover !important;
  object-position:center center !important;
}

/* Core 3.6.7.0 - Jodit */
.jodit-container{border-radius:6px!important;border-color:#c8d2dc!important;overflow:hidden}
.jodit-toolbar__box{background:#f7f9fb!important}
.jodit-wysiwyg{font-size:15px;line-height:1.65;min-height:260px}
.postMessage img{max-width:100%;height:auto}
.postMessage table{max-width:100%;border-collapse:collapse}
.postMessage th,.postMessage td{border:1px solid #ccd5dd;padding:6px 8px}
.postMessage blockquote{border-left:4px solid #9eb6ca;margin:10px 0;padding:8px 12px;background:#f6f8fa}

/* Core 3.6.8.0 - attachments, forum stats, sharing */
.vbAttachBox{margin-top:10px;border:1px solid #cbd6df;border-radius:7px;background:#f7f9fb;overflow:hidden}
.vbAttachTop{display:flex;align-items:center;gap:10px;padding:10px}
.vbAttachList{display:flex;flex-wrap:wrap;gap:8px;padding:0 10px 10px}
.vbAttachment{display:flex;align-items:center;gap:8px;min-width:190px;max-width:320px;padding:7px;border:1px solid #d5dee6;border-radius:6px;background:#fff;line-height:1.25}
.vbAttachment img{width:54px;height:54px;object-fit:cover;border-radius:4px}
.vbFileIcon{font-size:32px;width:54px;text-align:center}
.vbAttachmentInfo{min-width:0}.vbAttachmentInfo a{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.vbAttachmentInfo small{display:block;color:#71808d;margin-top:4px}
.vbUploading{color:#657786}.vbUploadError{color:#b42318;border-color:#f0b4ae}
.postAttachments{margin-top:12px;padding-top:10px;border-top:1px solid #e1e6ea}.postAttachments>.vbAttachList{padding:8px 0 0}
.nodeRich{display:grid!important;grid-template-columns:minmax(280px,1fr) 100px 100px 145px minmax(330px,500px);align-items:center;gap:12px}
.nodeStat,.nodeDate{display:flex;flex-direction:column;text-align:center;color:#52616d}.nodeStat b{font-size:16px;color:#1b638f}.nodeStat span,.nodeDate span{font-size:12px;margin-top:3px}
.nodeLatest{display:flex;flex-direction:column;min-width:0;border-left:1px solid #e2e7eb;padding-left:14px}.nodeLatest>b{font-size:12px;color:#667783;margin-bottom:3px}.nodeLatest a{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.45}
@media(max-width:1000px){.nodeRich{grid-template-columns:1fr 75px 75px}.nodeDate{display:none}.nodeLatest{grid-column:1/-1;border-left:0;border-top:1px solid #e6ebef;padding:8px 0 0}}
@media(max-width:650px){.nodeRich{grid-template-columns:1fr 62px 62px}.nodeLatest a:nth-of-type(n+4){display:none}}

/* Core 3.6.8.2 - insert attachment into editor */
.vbAttachInsert{display:inline-block;margin-top:6px;padding:4px 8px;border:1px solid #8fb4ce;border-radius:4px;background:#eef7fc;color:#145f8b;font-size:12px;font-weight:600;cursor:pointer}
.vbAttachInsert:hover{background:#dceff9;border-color:#5d9cc5}

/* Core 3.6.9.0 - managed 3-column footer */
.siteFooter{margin-top:28px;background:#123f5d;color:#dbe9f2;border-top:4px solid #1d6d99}
.footerGrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:34px;padding-top:28px;padding-bottom:24px}
.footerCol{min-width:0}.footerCol h2,.footerCol h3,.footerCol h4,.footerCol h5{color:#fff;margin:0 0 12px}.footerCol p{margin:6px 0;line-height:1.55}
.footerCol ul,.footerCol ol{margin:0;padding-left:18px}.footerCol li{margin:6px 0}.footerCol a{color:#e9f6ff;text-decoration:none}.footerCol a:hover{text-decoration:underline}
.footerCol img{display:block;max-width:100%;height:auto;margin:8px 0;border-radius:5px}
.footerBottom{border-top:1px solid rgba(255,255,255,.18);padding-top:13px;padding-bottom:15px;font-size:13px;color:#bcd1df}
.footerBottom a{color:#e9f6ff}
@media(max-width:750px){.footerGrid{grid-template-columns:1fr;gap:20px;padding-top:22px}}

/* Core 3.7.0.0 - managed smilies */
.vbSmileBar{position:relative;margin-top:9px}.vbSmilePopup{position:absolute;z-index:80;left:0;bottom:42px;width:min(520px,92vw);max-height:330px;background:#fff;border:1px solid #bfcbd4;border-radius:8px;box-shadow:0 8px 28px rgba(0,0,0,.18);overflow:hidden}
.vbSmileHead{display:flex;justify-content:space-between;align-items:center;padding:8px 10px;background:#edf4f8;border-bottom:1px solid #d7e0e6}.vbSmileClose{border:0;background:transparent;font-size:22px;cursor:pointer}
.vbSmileGrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(42px,1fr));gap:5px;padding:9px;max-height:280px;overflow:auto}.vbSmileOne{height:42px;border:1px solid transparent;background:#fff;border-radius:5px;cursor:pointer;padding:3px}.vbSmileOne:hover{background:#edf7fd;border-color:#9bc5df}.vbSmileOne img{max-width:34px;max-height:34px}
.smileAdminGrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:10px}.smileAdminItem{border:1px solid #d5dee5;border-radius:7px;padding:9px;display:flex;flex-direction:column;gap:5px;align-items:flex-start}.smileAdminItem>img{max-width:64px;max-height:64px}.smileAdminItem small{color:#687985;word-break:break-word}

/* Core 3.7.0.1 */
.inlineReply{margin-top:14px}.inlineReply h2{margin-top:0}.inlineReplyActions{margin-top:10px;display:flex;justify-content:flex-end}.inlineReplyLogin{text-align:center;margin-top:14px}

/* Core 3.7.1.0 - avatars/profile */
.profileHero,.profileEditHead{display:flex;align-items:center;gap:16px}.profileAvatarLarge{width:96px;height:96px;border-radius:12px;object-fit:cover;border:1px solid #d6e0e6;background:#eef4f7}.profileHero h1{margin:0 0 8px}
@media(max-width:600px){.profileAvatarLarge{width:76px;height:76px}.profileHero,.profileEditHead{align-items:flex-start}}

.vbSmilieInline{max-width:42px;max-height:42px;vertical-align:middle;margin:0 2px}.smileAdminEdit{align-items:stretch!important}.smileAdminEdit form{display:grid;gap:5px}.smileAdminEdit input,.smileAdminEdit textarea,.smileAdminEdit select{width:100%;box-sizing:border-box}.smileAdminPreview{width:48px;height:48px;object-fit:contain;align-self:center}

/* Core 3.7.2.0 - XenForo-like thread management + sharing */
.threadManageMenu{position:relative;display:inline-block}.threadManageMenu>summary{list-style:none;cursor:pointer}.threadManageMenu>summary::-webkit-details-marker{display:none}.threadManageDrop{position:absolute;right:0;top:calc(100% + 5px);z-index:60;min-width:210px;background:#fff;border:1px solid #cfd9df;border-radius:7px;box-shadow:0 8px 24px #0002;padding:6px}.threadManageDrop a{display:block;padding:8px 10px;text-decoration:none;color:#314a5b;border-radius:5px;white-space:nowrap}.threadManageDrop a:hover{background:#edf5fa}.threadManageDrop .dangerLink{color:#b42318}.threadShare{display:flex;align-items:center;justify-content:flex-end;gap:7px;margin:12px 0 14px;font-size:13px}.shareBtn{display:inline-flex;align-items:center;text-decoration:none;border-radius:5px;padding:6px 10px;font-weight:700}.shareFacebook{background:#1877f2;color:#fff}.shareX{background:#111;color:#fff}.threadManage section{padding:15px 0;border-top:1px solid #e3e8ec}.threadManage section:first-of-type{margin-top:15px}.threadManage section h2{font-size:17px}.dangerZone{margin-top:18px}.dangerBtn{background:#b42318!important;color:#fff!important;border-color:#b42318!important}
@media(max-width:600px){.threadShare{justify-content:flex-start;flex-wrap:wrap}.threadManageDrop{right:auto;left:0}}

.rememberLogin{display:flex;align-items:center;gap:7px;font-weight:400}.rememberLogin input{width:auto;margin:0}

/* 3.7.3.3 - thong tin tac gia bai viet */
.postUserGroup{display:inline-block;margin-top:9px;padding:3px 9px;border-radius:12px;font-size:12px;font-weight:700}
.postUserGroup.isAdmin{color:#c62828;background:#ffebee;border:1px solid #ffcdd2}
.postUserGroup.isVip{color:#0867c5;background:#eaf4ff;border:1px solid #bddcff}
.postUserStats{margin-top:12px;padding-top:9px;border-top:1px solid #d9e1e7;font-size:12px;line-height:1.8;color:#65717c}
.postUserStats div{display:flex;justify-content:space-between;gap:8px}
.postUserStats b{color:#303840;font-weight:600;text-align:right}

/* VB Forum mention + Admin name */
.vbAdminName{color:#d40000!important;font-weight:800!important}.vbMention{font-weight:700;text-decoration:none}.vbMention:hover{text-decoration:underline}
.vbMentionMenu{position:fixed;z-index:100000;min-width:220px;max-width:360px;max-height:280px;overflow:auto;background:#fff;border:1px solid #b9c8d3;border-radius:7px;box-shadow:0 8px 28px #0003;padding:4px}
.vbMentionItem{display:block;width:100%;border:0;background:#fff;text-align:left;padding:7px 9px;border-radius:5px;cursor:pointer;font:inherit;color:#243746}.vbMentionItem:hover,.vbMentionItem.isActive{background:#e9f5ff}.vbMentionItem .vbAdminName{margin-left:6px;font-size:12px}

/* 1.0.11.11 */
a.vbAdminName,.userlink.vbAdminName,.vbAdminName{color:#d00000!important;font-weight:900!important}
.vbAdminBadge{display:inline-block;margin-left:7px;padding:1px 6px;border-radius:9px;background:#ffe5e5;color:#c40000;font-size:11px;font-weight:800}
.vbMentionMenuEditor{position:fixed!important}

/* 1.0.11.12 */
a.userlink.vbAdminName,.vbAdminName{color:#d00000!important;font-weight:900!important}

/* 1.0.11.38 member colors + Who's online */
a.vbAdminName,.userlink.vbAdminName,.vbAdminName{color:#d00000!important;font-weight:900!important}
a.vbRegisteredName,.userlink.vbRegisteredName,.vbRegisteredName{color:#000!important}
.vbVipName{font-weight:inherit}
.vbOnlineTableWrap{overflow:auto;margin-top:14px}.vbOnlineTable{width:100%;border-collapse:collapse;min-width:850px}.vbOnlineTable th,.vbOnlineTable td{padding:9px 10px;border-bottom:1px solid #e5e7eb;text-align:left;vertical-align:top}.vbOnlineTable th{white-space:nowrap}.vbOnlineTable .vbUa{max-width:420px;font-size:12px;color:#667085;word-break:break-word}

/* VB Forum 1.0.11.50 - Typography: base forum text 16px */
html,body{font-size:16px}