/* Khu thành viên AnDanceOS. Dùng token của site (tokens.css), sáng/tối theo html[data-theme]. */
body[data-page="member"] .message-fab,body[data-page="member"] .message-reminder{display:none}
.mb-root{max-width:none}
.mb-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:24px;align-items:start}
@media(min-width:1100px){.mb-grid.has-aside{grid-template-columns:minmax(0,1fr) 270px}}
.mb-aside{display:none}
@media(min-width:1100px){.mb-aside{display:block;position:sticky;top:24px}}
.mb-box{border:1px solid var(--color-border);background:var(--color-surface);border-radius:var(--radius-md);padding:14px;margin-bottom:12px;font-size:var(--fs-body);line-height:1.6;color:var(--color-text-secondary)}
.mb-box b{display:block;color:var(--color-text);margin-bottom:6px}
.mb-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

.mb-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.mb-head h1{margin:0;font-size:var(--fs-h2);letter-spacing:-.02em}
.mb-me{margin-left:auto;display:flex;align-items:center;gap:10px;font-size:var(--fs-small);color:var(--color-text-secondary)}
.mb-me b{color:var(--color-text);display:block;line-height:1.2}
.mb-me small{color:var(--color-text-muted)}
.mb-tabs{display:flex;gap:6px;flex-wrap:wrap;border-bottom:1px solid var(--color-border);margin-bottom:18px;padding-bottom:10px}
.mb-tab{display:inline-flex;align-items:center;gap:7px;padding:9px 12px;min-height:40px;border-radius:var(--radius-sm);color:var(--color-text-secondary);font-size:var(--fs-body);font-weight:600;text-decoration:none}
.mb-tab:hover{background:var(--color-brand-a08);color:var(--color-text)}
.mb-tab[aria-current="page"]{background:var(--color-brand-a15);color:var(--color-text);box-shadow:inset 2px 0 var(--color-brand)}
.mb-badge{background:var(--color-danger);color:#0B0D0F;border-radius:99px;padding:1px 7px;font-size:var(--fs-label);font-weight:800;line-height:1.5}
.mb-badge[hidden]{display:none}

.mb-top{display:flex;gap:10px;align-items:center;margin-bottom:16px}
.mb-search{flex:1;min-width:0}
.mb-bell{position:relative;display:grid;place-items:center;width:44px;height:44px;border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-secondary);flex:none}
.mb-bell svg{width:20px;height:20px}
.mb-bell .mb-badge{position:absolute;top:-6px;right:-6px}

.mb-input,.mb-textarea,.mb-select{width:100%;border:1px solid var(--color-border-strong);border-radius:var(--radius-sm);padding:11px 12px;background:var(--color-bg-alt);color:var(--color-text);font:inherit;font-size:var(--fs-body);line-height:1.45}
.mb-textarea{min-height:130px;resize:vertical}
.mb-input:focus,.mb-textarea:focus,.mb-select:focus{outline:2px solid var(--color-brand-a50);outline-offset:1px}
.mb-input::placeholder,.mb-textarea::placeholder{color:var(--color-text-subtle)}
.mb-label{display:block;font-size:var(--fs-label);font-weight:700;letter-spacing:.04em;color:var(--color-text-muted);margin:12px 0 6px}
.mb-row-actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:12px}
.mb-row-actions .grow{flex:1}
.btn.ghost{background:transparent;color:var(--color-text-secondary);border:1px solid var(--color-border-strong)}
.btn.ghost:hover{border-color:var(--color-brand);color:var(--color-text)}
.btn.danger{background:transparent;color:var(--color-danger);border:1px solid var(--color-danger-a50)}
.btn[disabled]{opacity:.55;cursor:not-allowed}
.btn.mini{min-height:34px;padding:7px 11px;font-size:var(--fs-small)}

.mb-ask{display:flex;gap:10px;align-items:center;border:1px solid var(--color-border);background:var(--color-surface);border-radius:var(--radius-md);padding:12px}
.mb-ask-in{flex:1;min-width:0;text-align:left;background:var(--color-surface-read);border:0;border-radius:var(--radius-sm);padding:12px;color:var(--color-text-muted);font:inherit;font-size:var(--fs-body);cursor:text}
.mb-chips{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0}
.mb-chips .filter{min-height:36px;padding:6px 12px;cursor:pointer}

.mb-av{display:grid;place-items:center;flex:none;width:34px;height:34px;border-radius:50%;font-weight:800;font-size:var(--fs-small);color:#0B0D0F;background:var(--color-brand);overflow:hidden}
.mb-av img{width:100%;height:100%;object-fit:cover}
.mb-av.c1{background:#B8FF3B}.mb-av.c2{background:#7CC4FF}.mb-av.c3{background:#FFC857}.mb-av.c4{background:#FF7A6B}
.mb-av.sm{width:24px;height:24px;font-size:var(--fs-label)}
.mb-av.lg{width:76px;height:76px;font-size:var(--fs-h2)}

.mb-q{display:flex;gap:12px;border:1px solid var(--color-border);background:var(--color-surface);border-radius:var(--radius-md);padding:16px;margin-bottom:10px}
.mb-q-thumb{position:relative;z-index:1;display:block;flex:none;width:72px;height:72px;border-radius:var(--radius-sm);overflow:hidden;background:var(--color-surface-read)}
.mb-q-thumb img{display:block;width:100%;height:100%;object-fit:cover}
.mb-q-thumb[hidden]{display:none}
.mb-q.pin{border-color:var(--color-brand-a35);background:linear-gradient(var(--color-brand-a08),var(--color-brand-a08)),var(--color-surface)}
.mb-q-body{min-width:0;flex:1}
.mb-q h3{margin:3px 0 4px;font-size:var(--fs-body);line-height:1.35;overflow-wrap:anywhere;word-break:break-word}
.mb-q h3 a{color:var(--color-text);text-decoration:none}
.mb-q h3 a:hover{color:var(--color-brand-text)}
.mb-q h3 a::after{content:"";position:absolute;inset:0}
.mb-q{position:relative}
.mb-q .mb-meta a,.mb-q .mb-meta button{position:relative;z-index:1}
.mb-excerpt{color:var(--color-text-secondary);font-size:var(--fs-body);margin:4px 0 8px;overflow-wrap:anywhere}
.mb-meta{display:flex;gap:6px 10px;flex-wrap:wrap;align-items:center;font-size:var(--fs-small);color:var(--color-text-muted)}
.mb-meta a.mb-name,.mb-meta b{color:var(--color-text);font-weight:700;text-decoration:none}
.mb-root .tag.done{background:rgba(124,196,255,.15);color:var(--color-info)}
.mb-root .tag.pin{background:var(--color-brand);color:var(--color-on-brand)}
.mb-root .tag.admin{background:rgba(255,200,87,.16);color:var(--color-warning)}
.mb-root .tag.plain{background:var(--color-bg-alt);color:var(--color-text-secondary);border:1px solid var(--color-border)}
.mb-root .tag{letter-spacing:.04em}

.mb-card{border:1px solid var(--color-border);background:var(--color-surface);border-radius:var(--radius-md);padding:22px}
.mb-card h1,.mb-card h2{margin:6px 0 8px}
.mb-detail h1{overflow-wrap:anywhere;word-break:break-word;font-size:var(--fs-h2);line-height:1.25;letter-spacing:-.02em;margin:10px 0}
.mb-back{display:inline-flex;align-items:center;gap:6px;color:var(--color-text-secondary);font-size:var(--fs-small);text-decoration:none;margin-bottom:12px;min-height:36px}
.mb-back:hover{color:var(--color-brand-text)}

.mb-md{font-size:var(--fs-prose);line-height:var(--lh-prose);color:var(--color-text-secondary);overflow-wrap:anywhere}
.mb-md p{margin:0 0 10px}
.mb-md h3,.mb-md h4,.mb-md h5{color:var(--color-text);margin:14px 0 6px;font-size:var(--fs-body)}
.mb-md a{color:var(--color-brand-text);text-decoration:underline}
.mb-md code{font:var(--fs-body) var(--font-mono);background:var(--color-bg-alt);border:1px solid var(--color-border);border-radius:5px;padding:1px 5px;color:var(--color-text)}
.mb-md pre{background:var(--color-bg-alt);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:12px;overflow:auto;margin:10px 0}
.mb-md pre code{border:0;background:none;padding:0;white-space:pre;color:var(--color-text-secondary)}
.mb-md ul,.mb-md ol{margin:0 0 10px;padding-left:22px}
.mb-md blockquote{margin:0 0 10px;padding:4px 12px;border-left:3px solid var(--color-brand-a50);color:var(--color-text-muted)}

.mb-shots{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}
.mb-shots a,.mb-shots .mb-thumb{position:relative;display:block;width:132px;height:100px;border:1px solid var(--color-border);border-radius:var(--radius-sm);overflow:hidden;background:var(--color-surface-read)}
.mb-shots img{width:100%;height:100%;object-fit:cover;display:block}
.mb-thumb .mb-x{position:absolute;top:4px;right:4px;width:26px;height:26px;border:0;border-radius:50%;background:rgba(0,0,0,.65);color:#fff;font-size:var(--fs-glyph);line-height:1;cursor:pointer}
.mb-thumb.busy::after{content:"Đang tải...";position:absolute;inset:0;display:grid;place-items:center;background:rgba(0,0,0,.55);color:#fff;font-size:var(--fs-small)}
.mb-thumb.err{border-color:var(--color-danger)}

.mb-ans{border-top:1px solid var(--color-border);padding-top:14px;margin-top:14px;display:flex;gap:10px}
.mb-ans.best{border:1px solid rgba(124,196,255,.45);border-radius:var(--radius-md);padding:14px;background:rgba(124,196,255,.06)}
.mb-ans-main{min-width:0;flex:1}
.mb-ans-actions{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.mb-link-btn{background:none;border:0;padding:6px 4px;min-height:32px;color:var(--color-text-muted);font:inherit;font-size:var(--fs-small);font-weight:600;cursor:pointer}
.mb-link-btn:hover{color:var(--color-brand-text)}
.mb-link-btn.danger:hover{color:var(--color-danger)}
.mb-compose{margin-top:18px;border:1px solid var(--color-border);background:var(--color-surface);border-radius:var(--radius-md);padding:14px}
.mb-compose .mb-textarea{min-height:96px}
.mb-hint{font-size:var(--fs-small);color:var(--color-text-muted);margin-top:6px}
.mb-error{color:var(--color-danger);font-size:var(--fs-small);margin:8px 0 0;min-height:0}
.mb-error:empty{display:none}
.mb-ok{color:var(--color-success);font-size:var(--fs-small);margin:8px 0 0}

.mb-center{display:grid;place-items:center;min-height:60vh;text-align:center}
.mb-login{border:1px solid var(--color-border);background:var(--color-surface);border-radius:var(--radius-lg);padding:30px;width:100%;max-width:400px;text-align:left}
.mb-login h1{margin:0 0 6px;font-size:var(--fs-h2)}
.mb-login p{color:var(--color-text-secondary);margin:0 0 12px}
.mb-login p:not(.mb-error):not(.mb-hint):not(.mb-ok):not(.mb-privacy-note),.mb-wait p:not(.mb-hint):not(.mb-error),.mb-prof .mb-excerpt{font-size:var(--fs-lead);line-height:var(--lh-lead)}
.mb-login .mb-privacy-note{font-size:var(--fs-small);margin-top:-4px}.mb-privacy-note a{color:var(--color-brand-text);text-decoration:underline;text-underline-offset:3px}
.mb-login .btn{width:100%}
.mb-or{display:flex;align-items:center;gap:10px;color:var(--color-text-muted);font-size:var(--fs-small);margin:14px 0}
.mb-or::before,.mb-or::after{content:"";flex:1;border-top:1px solid var(--color-border)}
.mb-login hr{border:0;border-top:1px solid var(--color-border);margin:20px 0}
.mb-code-input{letter-spacing:.35em;text-align:center;font:600 var(--fs-h2) var(--font-mono);padding:12px}
.mb-wait h2{margin:10px 0 6px}
.mb-honey{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}

.mb-empty{border:1px dashed var(--color-border-strong);border-radius:var(--radius-md);padding:30px 18px;text-align:center;color:var(--color-text-secondary)}
.mb-empty b{display:block;color:var(--color-text);font-size:var(--fs-body);margin-bottom:6px}
.mb-skel{height:84px;border-radius:var(--radius-md);background:linear-gradient(90deg,var(--color-surface),var(--color-bg-alt),var(--color-surface));background-size:200% 100%;animation:mbs 1.3s linear infinite;margin-bottom:10px}
@keyframes mbs{to{background-position:-200% 0}}

.mb-prof{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.mb-prof h1{overflow-wrap:anywhere;margin:0;font-size:var(--fs-h2)}
.mb-stat{display:flex;gap:26px;margin:18px 0;font-size:var(--fs-small);color:var(--color-text-muted);flex-wrap:wrap}
.mb-stat b{display:block;color:var(--color-text);font-size:var(--fs-h3)}
.mb-sub{font-size:var(--fs-label);letter-spacing:.12em;font-weight:700;color:var(--color-text-muted);margin:20px 0 6px;font-family:var(--font-mono)}
.mb-list-row{display:flex;justify-content:space-between;align-items:center;gap:12px;border-bottom:1px solid var(--color-border);padding:11px 0;font-size:var(--fs-body)}
.mb-list-row:last-child{border-bottom:0}
.mb-list-row a{color:var(--color-text);text-decoration:none;min-width:0;overflow-wrap:anywhere}
.mb-list-row a:hover{color:var(--color-brand-text)}
.mb-list-row small{color:var(--color-text-muted);white-space:nowrap}
.mb-list-row .mb-acts{display:flex;gap:6px;flex-wrap:wrap}
.mb-noti>div{min-width:0;overflow-wrap:anywhere}
.mb-noti{display:flex;gap:12px;align-items:flex-start;padding:12px 4px;border-bottom:1px solid var(--color-border)}
.mb-noti a{color:var(--color-text);text-decoration:none}
.mb-noti.unread{background:var(--color-brand-a04);box-shadow:inset 3px 0 var(--color-brand);padding-left:12px}
.mb-noti small{display:block;color:var(--color-text-muted);margin-top:2px}
.mb-subtabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.mb-split{display:grid;gap:18px;grid-template-columns:minmax(0,1fr)}
.mb-split>*{min-width:0}
@media(min-width:900px){.mb-split.two{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}
.mb-legend{border:1px dashed var(--color-brand-a35);border-radius:10px;padding:10px 14px;color:var(--color-text-secondary);font-size:var(--fs-small);margin-top:12px}
.mb-toast{position:fixed;left:50%;bottom:84px;transform:translateX(-50%);z-index:80;background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border-strong);border-radius:var(--radius-sm);padding:10px 16px;font-size:var(--fs-body);box-shadow:var(--shadow-pop);max-width:90vw}

@media(max-width:900px){
  .mb-root{padding-top:20px}
  .mb-tabs{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;margin-left:-4px}
  .mb-tab{white-space:nowrap;padding:9px 8px;font-size:var(--fs-body);gap:5px}
  .mb-tabs{gap:2px}
  .mb-q{padding:14px}
  .mb-q-thumb{width:56px;height:56px}
  .mb-card{padding:16px}
  .mb-me .mb-who{display:none}
  .mb-shots a,.mb-shots .mb-thumb{width:calc(50% - 4px)}
  .mb-ask .btn{padding-left:12px;padding-right:12px}
  .mb-chips{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;margin-right:-20px;padding-right:20px}
  .mb-chips .filter{flex:none;white-space:nowrap}
}
.mb-aside[hidden],.mb-ask[hidden]{display:none!important}
.mb-detail .mb-shots a{width:min(100%,260px);height:170px}

/* ---- Đặt lịch coaching ---- */
.mb-cal-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:12px 0}
.mb-cal-stat{border:1px solid var(--color-border);background:var(--color-bg-alt);border-radius:var(--radius-sm);padding:10px 12px}
.mb-cal-stat small{display:block;color:var(--color-text-muted);font-size:var(--fs-small)}
.mb-cal-stat b{display:block;font-size:var(--fs-body);margin-top:2px}
.mb-cal-when{font-weight:700;margin:6px 0}
.mb-card + .mb-card{margin-top:14px}
.mb-cal-days{display:flex;gap:8px;overflow-x:auto;padding:4px 0 10px;scrollbar-width:thin}
.mb-cal-day{flex:none;min-width:84px;min-height:64px;display:grid;gap:1px;place-items:center;border:1px solid var(--color-border-strong);background:var(--color-bg-alt);color:var(--color-text);border-radius:var(--radius-sm);padding:8px 10px;font:inherit;cursor:pointer}
.mb-cal-day small{font-size:var(--fs-small);color:var(--color-text-muted)}
.mb-cal-day small:first-child{text-transform:capitalize}
.mb-cal-day b{font-size:var(--fs-body)}
.mb-cal-day.on{border-color:var(--color-brand);background:var(--color-brand-a15);box-shadow:inset 0 0 0 1px var(--color-brand)}
.mb-cal-day.full{opacity:.6}
.mb-cal-slots{display:grid;grid-template-columns:repeat(auto-fill,minmax(68px,1fr));gap:8px;margin:8px 0}
.mb-cal-slot{min-height:44px;border:1px solid var(--color-border-strong);background:var(--color-bg-alt);color:var(--color-text);border-radius:var(--radius-sm);font:inherit;font-size:var(--fs-body);font-weight:600;cursor:pointer}
.mb-cal-slot:hover{border-color:var(--color-brand)}
.mb-cal-slot.on{background:var(--color-brand);color:var(--color-on-brand);border-color:var(--color-brand)}
.mb-cal-slot.full{background:transparent;color:var(--color-text-subtle);text-decoration:line-through;cursor:not-allowed;opacity:.55}
.mb-cal-others{border:1px dashed var(--color-border-strong);border-radius:var(--radius-sm);padding:10px 12px;margin-top:12px;font-size:var(--fs-small);color:var(--color-text-secondary)}
.mb-cal-others b{display:block;color:var(--color-text);margin-bottom:4px}
.mb-cal-confirm{border-top:1px solid var(--color-border);margin-top:16px;padding-top:6px}
.mb-cal-radios{display:flex;gap:16px;flex-wrap:wrap}
.mb-cal-radio,.mb-cal-check{display:inline-flex;align-items:center;gap:8px;min-height:40px;cursor:pointer}
.mb-cal-form{display:grid;grid-template-columns:1fr;gap:8px}
@media(min-width:700px){.mb-cal-form{grid-template-columns:repeat(3,minmax(0,1fr))}}
.mb-cal-brow{display:grid;gap:6px;border-bottom:1px solid var(--color-border);padding:10px 0}
.mb-cal-brow small{color:var(--color-text-muted);overflow-wrap:anywhere}
.mb-cal-link{display:flex;gap:8px;flex-wrap:wrap}
.mb-cal-link .mb-input{flex:1 1 220px;min-width:0}
@media(max-width:520px){.mb-cal-stats{grid-template-columns:1fr}}
.mb-cal-types{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:8px 0}
.mb-cal-type{display:grid;gap:2px;text-align:left;min-height:64px;border:1px solid var(--color-border-strong);background:var(--color-bg-alt);color:var(--color-text);border-radius:var(--radius-sm);padding:10px 12px;font:inherit;font-size:var(--fs-body);cursor:pointer}
.mb-cal-type small{font-size:var(--fs-small);color:var(--color-text-muted);white-space:normal}
.mb-cal-type.on{border-color:var(--color-brand);background:var(--color-brand-a15);box-shadow:inset 0 0 0 1px var(--color-brand)}
.mb-cal-type:disabled{opacity:.55;cursor:not-allowed}
@media(max-width:520px){.mb-cal-types{grid-template-columns:1fr}}
.mb-cal-kind{font-size:var(--fs-label);white-space:nowrap}
.mb-cal-filter{max-width:240px}
.mb-cal-row{flex-wrap:wrap}
.mb-cal-row>span:first-child{min-width:0;overflow-wrap:anywhere}
@media(max-width:520px){.mb-cal-row>span:first-child{flex:1 1 100%}}
.mb-cal-row small,.mb-cal-brow small,.mb-cal-stat small{white-space:normal}

/* ---- Tab Học ---- */
.mb-new{background:var(--color-brand);color:var(--color-on-brand);border-radius:4px;padding:1px 6px;font-size:var(--fs-label);font-weight:800;letter-spacing:.06em;font-family:var(--font-mono,ui-monospace,monospace)}
.learn-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:20px;align-items:start}
@media(min-width:1100px){.learn-grid{grid-template-columns:minmax(0,1fr) 300px}.learn-side{position:sticky;top:24px}}
.learn-main{min-width:0;display:grid;gap:16px;align-content:start}
.learn-side{min-width:0}
.learn-box{margin-bottom:14px}
.learn-eyebrow{font-family:var(--font-mono,ui-monospace,monospace);font-size:var(--fs-label);letter-spacing:.12em;color:var(--color-text-muted);font-weight:700}
.learn-meta{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:var(--fs-small);color:var(--color-text-secondary);margin-top:8px}
.learn-hero{display:flex;gap:20px;align-items:center;justify-content:space-between;border-color:var(--color-brand-a35);background:linear-gradient(var(--color-brand-a08),var(--color-brand-a04)),var(--color-surface)}
.learn-hero-main{min-width:0}
.learn-hero h2{font-size:var(--fs-h2);line-height:1.2;letter-spacing:-.02em;margin:8px 0}
.learn-sum{color:var(--color-text-secondary);margin:0;font-size:var(--fs-lead);line-height:var(--lh-lead)}
.learn-ring{position:relative;flex:none;width:112px;height:112px}
.learn-ring svg{width:100%;height:100%}
.learn-ring .bg{fill:none;stroke:var(--color-border-strong);stroke-width:8}
.learn-ring .fg{fill:none;stroke:var(--color-brand);stroke-width:8;stroke-linecap:round}
.learn-ring-txt{position:absolute;inset:0;display:grid;place-content:center;text-align:center;padding:0 12px}
.learn-ring-txt b{font-size:var(--fs-h3);line-height:1.1}
.learn-ring-txt b.small{font-size:var(--fs-small);line-height:1.3}
.learn-ring-txt small{color:var(--color-text-muted);font-size:var(--fs-small)}
.learn-next{display:flex;gap:14px;align-items:center;justify-content:space-between;flex-wrap:wrap;padding:16px 20px}
.learn-next-txt{display:grid;gap:3px;min-width:0}
.learn-next-txt small{color:var(--color-text-muted)}
.learn-sec-head{display:flex;justify-content:space-between;align-items:baseline;gap:10px;flex-wrap:wrap}
.learn-sec-head h3{margin:0;font-size:var(--fs-h3)}
.learn-sec-head small{color:var(--color-text-muted)}
.learn-mods{display:grid;gap:10px}
.learn-mod{border:1px solid var(--color-border);background:var(--color-surface);border-radius:var(--radius-md);overflow:hidden}
.learn-mod.soon{opacity:.75}
.learn-mod-head{display:flex;align-items:center;gap:14px;width:100%;text-align:left;background:transparent;border:0;color:var(--color-text);font:inherit;padding:16px;cursor:pointer;min-height:56px}
.learn-mod-head[disabled]{cursor:default}
.learn-mod-num{flex:none;display:grid;place-items:center;width:34px;height:34px;border:1px solid var(--color-brand-a50);border-radius:8px;color:var(--color-brand-text);font-family:var(--font-mono,ui-monospace,monospace);font-size:var(--fs-label);font-weight:800}
.soon .learn-mod-num{border-color:var(--color-border-strong);color:var(--color-text-muted)}
.learn-mod-title{flex:1;min-width:0;display:grid;gap:2px}
.learn-mod-title small{color:var(--color-text-muted);font-size:var(--fs-body)}
.learn-mod-count{font-size:var(--fs-small);color:var(--color-text-secondary);flex:none}
.learn-mod-body{border-top:1px solid var(--color-border);padding:6px}
.learn-mod-body[hidden]{display:none}
.mb-root .tag.soon{background:rgba(255,200,87,.16);color:var(--color-warning)}
.mb-root .tag.lesson{background:var(--color-brand-a15);color:var(--color-brand-text);text-decoration:none}
.learn-row{display:flex;align-items:center;gap:12px;padding:10px;border-radius:8px;color:var(--color-text);text-decoration:none;min-height:44px}
.learn-row:hover{background:var(--color-brand-a08)}
.learn-row.cur{background:var(--color-brand-a15)}
.learn-row-num{font-family:var(--font-mono,ui-monospace,monospace);font-size:var(--fs-label);color:var(--color-text-muted);flex:none;min-width:30px}
.learn-row-title{flex:1;min-width:0;display:flex;flex-wrap:wrap;gap:4px 8px;align-items:center}
.learn-row-kind{font-size:var(--fs-label);color:var(--color-text-muted);text-align:right}
.learn-dot{flex:none;display:inline-grid;place-items:center;width:20px;height:20px;border-radius:50%;border:2px solid var(--color-border-strong);color:var(--color-on-brand)}
.learn-dot.done{background:var(--color-brand);border-color:var(--color-brand)}
.learn-dot.done svg{width:12px;height:12px}
.learn-dot.cur:not(.done){border-color:var(--color-brand);box-shadow:inset 0 0 0 4px var(--color-surface),inset 0 0 0 10px var(--color-brand)}
.learn-res{display:flex;justify-content:space-between;gap:10px;align-items:center;padding:9px 0;border-bottom:1px solid var(--color-border);color:var(--color-text);text-decoration:none;font-size:var(--fs-body);overflow-wrap:anywhere}
.learn-res small{color:var(--color-text-muted);flex:none}
.learn-res:last-child{border-bottom:0}
.learn-cal{display:flex;gap:12px;align-items:center;margin:10px 0}
.learn-cal small{display:block;color:var(--color-text-muted)}
.learn-cal-date{display:grid;place-items:center;flex:none;width:52px;border:1px solid var(--color-border-strong);border-radius:8px;padding:4px 0;text-align:center;line-height:1.1}
.learn-cal-date b{font-size:var(--fs-h3);display:block}
/* màn bài */
.learn-crumb{font-size:var(--fs-small);color:var(--color-text-secondary)}
.learn-crumb a{color:var(--color-text-secondary)}
.learn-video{position:relative;aspect-ratio:16/9;border-radius:var(--radius-md);overflow:hidden;background:#0B0D0F;border:1px solid var(--color-border)}
.learn-video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.learn-video.empty{display:grid;place-items:center;color:#9aa0a6;font-weight:700}
.learn-lhead{display:flex;gap:16px;justify-content:space-between;align-items:flex-start;flex-wrap:wrap}
.learn-lhead h2{margin:6px 0 0;font-size:var(--fs-h2);letter-spacing:-.02em;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.learn-draft{font-size:var(--fs-small)}
.learn-done.on{background:transparent;color:var(--color-brand-text);border:1px solid var(--color-brand)}
.learn-tabs{display:flex;gap:4px;border-bottom:1px solid var(--color-border);overflow-x:auto;scrollbar-width:none}
.learn-tab{background:transparent;border:0;border-bottom:2px solid transparent;color:var(--color-text-secondary);font:inherit;font-weight:600;padding:10px 12px;min-height:44px;cursor:pointer;white-space:nowrap}
.learn-tab[aria-selected="true"]{color:var(--color-text);border-bottom-color:var(--color-brand)}
.learn-panel{display:grid;gap:14px;min-width:0}
.learn-panel[hidden]{display:none}
.learn-body{overflow-wrap:anywhere;max-width:72ch}
.lesson-slide{margin:14px 0;padding:0;max-width:100%}
.lesson-slide a{display:block;border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden;background:var(--color-bg-alt)}
.lesson-slide img{display:block;width:100%;max-width:100%;height:auto;aspect-ratio:16/9}
.learn-assign-q{margin:8px 0 12px;font-weight:600}
.learn-submit{display:flex;gap:8px;flex-wrap:wrap}
.learn-submit .mb-input{flex:1 1 220px;min-width:0}
.learn-pn{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.learn-pn .btn:last-child{text-align:right;justify-content:flex-end}
@media(max-width:600px){.learn-pn{grid-template-columns:minmax(0,1fr)}.learn-pn .btn:last-child{text-align:left;justify-content:flex-start}}
.learn-pn .btn{max-width:100%;white-space:normal;text-align:left}
.learn-bar{height:6px;border-radius:99px;background:var(--color-border-strong);margin:8px 0 12px;overflow:hidden}
.learn-bar-fill{display:block;height:100%;background:var(--color-brand);border-radius:99px}
.learn-side-mod{font-family:var(--font-mono,ui-monospace,monospace);font-size:var(--fs-label);letter-spacing:.08em;color:var(--color-text-muted);margin:12px 0 4px;text-transform:uppercase}
.learn-side-row{display:flex;gap:10px;align-items:center;padding:7px 8px;border-radius:8px;color:var(--color-text);text-decoration:none;font-size:var(--fs-body);min-height:36px}
.learn-side-row span:nth-child(2){flex:1;min-width:0}
.learn-side-row:hover{background:var(--color-brand-a08)}
.learn-side-row.cur{background:var(--color-brand-a15)}
.learn-qs{display:grid;gap:2px;margin:6px 0 10px}
.learn-q{display:grid;gap:2px;padding:8px 0;border-bottom:1px solid var(--color-border);color:var(--color-text);text-decoration:none;font-size:var(--fs-body)}
.learn-q small{color:var(--color-text-muted)}
.learn-more{font-size:var(--fs-small)}
.learn-ask{width:100%;justify-content:center}
.learn-filter{margin:12px 0}
@media(max-width:900px){
  .learn-hero{flex-direction:column-reverse;align-items:flex-start}
  .learn-row-kind{display:none}
  .learn-mod-head{padding:14px 12px;gap:10px}
}
.mb-hint a{color:var(--color-brand-text);text-decoration:underline}

/* khoá bài theo học viên */
.learn-dot.lock{border-color:transparent;color:var(--color-text-muted)}
.learn-dot.lock svg{width:14px;height:14px}
.learn-row.locked .learn-row-title,.learn-side-row.locked span:nth-child(2){color:var(--color-text-secondary)}
.learn-locked{text-align:center;max-width:560px;margin:24px auto;padding:36px 24px}
.learn-locked .learn-locked-ico{display:inline-flex;width:44px;height:44px;border-radius:50%;background:var(--color-brand-a08);color:var(--color-text-secondary);align-items:center;justify-content:center;margin-bottom:10px}
.learn-locked .learn-locked-ico svg{width:22px;height:22px}
.learn-locked h2{margin:6px 0 10px}
.learn-locked .mb-row-actions{justify-content:center}
.grant-mod{border:1px solid var(--color-border);border-radius:var(--radius-sm);margin:10px 0;padding:10px 12px}
.grant-mod-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.grant-modlabel{display:flex;align-items:center;gap:10px;flex:1;min-width:0;cursor:pointer}
.grant-lessons{margin-top:8px;display:grid;gap:2px}
.grant-row{display:flex;align-items:center;gap:10px;padding:8px 6px;border-radius:8px;min-height:44px;cursor:pointer}
.grant-row:hover{background:var(--color-brand-a08)}
.grant-mod input[type=checkbox]{width:20px;height:20px;flex:none;accent-color:var(--color-brand,#c8f35a)}
/* <small> không có cỡ riêng: về cỡ meta chung */
.mb-me small,.learn-next-txt small,.learn-sec-head small,.learn-res small,.learn-cal small,.learn-q small,.mb-list-row small,.mb-noti small,.mb-cal-brow small{font-size:var(--fs-small)}

/* ===== Khu VIP kiểu Circle (P1): tab ngang, cột kênh, bảng tin, cột phải ===== */
.vk-shell{display:grid;grid-template-columns:270px minmax(0,1fr);align-items:start;min-height:100vh}
.vk-side{position:sticky;top:0;height:100vh;overflow-y:auto;padding:16px 12px 24px;background:var(--color-surface);border-right:1px solid var(--color-border)}
.vk-body{min-width:0}
.vk-top{display:flex;align-items:center;gap:10px;min-height:60px;padding:8px 22px;background:var(--color-surface);border-bottom:1px solid var(--color-border);position:sticky;top:0;z-index:20}
.vk-title{font-weight:800;font-size:var(--fs-lead);letter-spacing:-.01em;white-space:nowrap}
.vk-tabs{display:flex;gap:4px;margin:0 auto;overflow-x:auto;scrollbar-width:none}
.vk-tabs::-webkit-scrollbar{display:none}
.vk-tab{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;min-height:40px;border-radius:10px;color:var(--color-text-secondary);font-weight:600;font-size:var(--fs-body);text-decoration:none;white-space:nowrap;border:1px solid transparent}
.vk-tab:hover{background:var(--color-brand-a08);color:var(--color-text)}
.vk-tab[aria-current="page"]{background:var(--color-brand-a15);color:var(--color-text);border-color:var(--color-brand-a35)}
.vk-tab.is-locked::after{content:"🔒";font-size:var(--fs-label);opacity:.7}
.vk-search{width:170px;flex:none}
.vk-search .mb-input{padding:8px 12px}
.vk-chan-btn{display:none;align-items:center;gap:6px;padding:8px 12px;min-height:40px;border:1px solid var(--color-border-strong);border-radius:10px;background:var(--color-surface);color:var(--color-text);font:inherit;font-weight:700;cursor:pointer;white-space:nowrap}
.vk-cols{display:grid;grid-template-columns:minmax(0,1fr);gap:22px;padding:22px 24px 60px;max-width:1240px;margin:0 auto}
@media(min-width:1100px){.vk-cols{grid-template-columns:minmax(0,1fr) 300px}}
.vk-center{min-width:0}
.vk-rail{min-width:0}
@media(min-width:1100px){.vk-rail{position:sticky;top:84px;align-self:start}}
.vk-head{padding:18px 22px;margin-bottom:16px}
.vk-head h1{margin:0;font-size:var(--fs-h2);letter-spacing:-.02em;text-wrap:balance}
.vk-head p{margin:4px 0 0;color:var(--color-text-muted)}
.vk-sub{font-size:var(--fs-lead);margin:22px 0 10px}

/* cột kênh */
.vk-feedbtn,.vk-sp{display:flex;align-items:center;gap:10px;padding:9px 12px;min-height:40px;border-radius:10px;color:var(--color-text);text-decoration:none;font-size:var(--fs-body)}
.vk-feedbtn{font-weight:700;margin-bottom:4px}
.vk-feedbtn.on{background:var(--color-brand);color:var(--color-on-brand)}
.vk-grp{font-weight:700;font-size:var(--fs-small);letter-spacing:.04em;color:var(--color-text-muted);padding:18px 12px 6px}
.vk-sp:hover{background:var(--color-brand-a08)}
.vk-sp.on{background:var(--color-brand-a15);font-weight:700}
.vk-sp .e{width:22px;text-align:center}
.vk-sp .t{flex:1;min-width:0;overflow-wrap:anywhere}
.vk-sp .n{font-size:var(--fs-label);font-weight:800;border:1px solid var(--color-border-strong);border-radius:8px;padding:0 7px}
.vk-sp.locked{color:var(--color-text-muted)}
.vk-sp.locked .e{filter:grayscale(1);opacity:.6}
.vk-sp .lk{font-size:var(--fs-label)}

/* thẻ bài */
.vk-post{padding:20px 24px;margin-bottom:16px}
.vk-post.pin{border-color:var(--color-brand-a35)}
.vk-by{display:flex;gap:12px;align-items:center;margin-bottom:10px}
.vk-by .mb-av{width:40px;height:40px}
.vk-by-l{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.vk-by-l .mb-name{font-weight:700;color:var(--color-text);text-decoration:none}
.vk-by-s{color:var(--color-text-muted)}
.vk-in{color:var(--color-brand-text);text-decoration:none;font-weight:600}
.vk-post h2{font-size:var(--fs-h3);line-height:1.3;margin:0 0 10px;letter-spacing:-.01em;overflow-wrap:anywhere;text-wrap:balance}
.vk-post h2 a{color:var(--color-text);text-decoration:none}
.vk-post h2 .tag{margin-right:8px;vertical-align:3px}
.vk-excerpt{color:var(--color-text-secondary);margin:0 0 10px;overflow-wrap:anywhere}
.vk-more{color:var(--color-text-muted);font-weight:600;text-decoration:none;white-space:nowrap}
.vk-thumb{display:block;max-width:260px;height:150px;border-radius:12px;overflow:hidden;background:var(--color-surface-read);margin:8px 0}
.vk-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.vk-thumb[hidden]{display:none}
.vk-post-f{display:flex;gap:10px;align-items:center;flex-wrap:wrap;border-top:1px solid var(--color-border);margin-top:10px;padding-top:10px}
.vk-count{margin-left:auto;color:var(--color-text-muted);font-size:var(--fs-small)}

/* thẻ phụ */
.vk-gate{text-align:center;padding:38px 24px}
.vk-gate-ico{font-size:var(--fs-stat)}
.vk-gate p{max-width:46ch;margin:6px auto 16px;color:var(--color-text-secondary)}
.vk-seg{display:flex;gap:8px;margin-bottom:14px}
.vk-seg .filter[aria-pressed="true"]{background:var(--color-brand-a15);border-color:var(--color-brand-a35);color:var(--color-text)}
.vk-course{display:flex;gap:18px;padding:16px;margin-bottom:14px;align-items:stretch}
.vk-cover{flex:none;width:200px;min-height:130px;border-radius:12px;display:grid;place-items:center;font-size:var(--fs-stat);background:linear-gradient(135deg,var(--color-brand-a35),var(--color-brand-a08))}
.vk-course-b{min-width:0;flex:1}
.vk-course h3{margin:6px 0}
.vk-pbar{height:6px;border-radius:3px;background:var(--color-bg-alt);overflow:hidden;margin:8px 0}
.vk-pbar i{display:block;height:100%;background:var(--color-brand)}
.vk-list{display:grid;gap:12px}
.vk-ev{display:flex;gap:14px;align-items:center;padding:14px 18px}
.vk-ev-b{flex:1;min-width:0}
.vk-ev-b h3{margin:0 0 2px}
.vk-date{flex:none;width:52px;text-align:center;border-radius:10px;background:var(--color-bg-alt);padding:6px 0;font-weight:800;line-height:1.15;font-size:var(--fs-lead)}
.vk-date small{display:block;font-size:var(--fs-label);color:var(--color-text-muted);font-weight:600}
.vk-members{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:12px}
.vk-member{display:flex;flex-direction:column;align-items:center;gap:6px;padding:18px 12px;text-align:center;text-decoration:none;color:var(--color-text)}
.vk-member .mb-av.lg{width:64px;height:64px}
.vk-member small{color:var(--color-text-muted)}

/* cột phải */
.vk-box-h{display:flex;align-items:center;justify-content:space-between}
.vk-chk{display:flex;gap:10px;align-items:center;padding:7px 0;color:var(--color-text);text-decoration:none;font-size:var(--fs-body)}
.vk-chk i{width:18px;height:18px;border-radius:50%;border:1.5px dashed var(--color-text-muted);flex:none}
.vk-chk.d i{border:0;background:var(--color-success)}
.vk-chk.d span{text-decoration:line-through;color:var(--color-text-muted)}
.vk-chk.big{padding:12px 4px;border-bottom:1px solid var(--color-border);font-size:var(--fs-lead)}
.vk-rail-ev,.vk-rail-post{display:flex;gap:10px;align-items:center;padding:7px 0;color:var(--color-text);text-decoration:none;font-size:var(--fs-body);line-height:1.35}
.vk-rail-ev small,.vk-rail-post small{display:block;color:var(--color-text-muted)}
.vk-rail-ev .vk-date{width:44px;font-size:var(--fs-body)}

/* điện thoại: cột kênh thành ngăn kéo, tab cuộn ngang bắt đầu bằng nút Kênh */
@media(max-width:820px){
  .vk-shell{grid-template-columns:minmax(0,1fr)}
  .vk-side{position:fixed;inset:0 auto 0 0;width:min(300px,86vw);height:100dvh;z-index:60;transform:translateX(-102%);transition:transform .2s;box-shadow:none}
  .vk-side.open{transform:none;box-shadow:0 0 40px rgba(0,0,0,.45)}
  .vk-backdrop{position:fixed;inset:0;z-index:55;background:rgba(0,0,0,.5)}
  .vk-backdrop[hidden]{display:none}
  .vk-top{flex-wrap:wrap;gap:6px 10px;padding:8px 16px;top:0}
  .vk-title{flex:1}
  .vk-search{display:none}
  .vk-tabs{order:3;flex:0 0 100%;margin:0;padding-bottom:2px}
  .vk-chan-btn{display:inline-flex}
  .vk-cols{padding:16px 16px 90px}
  .vk-course{flex-direction:column}
  .vk-cover{width:100%;min-height:110px}
  .vk-post{padding:16px}
}

/* ---- Vòng 2: hồ sơ thành viên ---- */
.mb-av.xl{width:92px;height:92px;font-size:var(--fs-h2);border:4px solid var(--color-surface)}
.mb-root .tag.opcb{background:rgba(124,196,255,.15);color:var(--color-info)}
.btn.mini.on{border-color:var(--color-brand);color:var(--color-brand-text)}
.pf-head{padding:0;overflow:hidden}
.pf-cover{height:120px;background:linear-gradient(120deg,#1f3a2a,#2f5a3f)}
.pf-cover.c1{background:linear-gradient(120deg,#1d3550,#2c5a86)}.pf-cover.c2{background:linear-gradient(120deg,#4a3a1b,#8a6a22)}
.pf-cover.c3{background:linear-gradient(120deg,#4b2a2a,#8a3f3f)}.pf-cover.c4{background:linear-gradient(120deg,#33294d,#5a46a0)}.pf-cover.c5{background:linear-gradient(120deg,#1f4a48,#2f8a84)}
.pf-hb{display:flex;gap:18px;align-items:flex-start;padding:0 22px;flex-wrap:wrap}
.pf-hb .mb-av{margin-top:-46px}
.pf-who{flex:1;min-width:200px;padding-top:14px}
.pf-who h1{margin:0;overflow-wrap:anywhere;font-size:var(--fs-h2)}
.pf-badges{display:flex;gap:6px;flex-wrap:wrap;margin:6px 0}
.pf-head .mb-stat{padding:0 22px 18px;margin:16px 0 0}
.pf-editbtn{margin-left:auto}
.pf-blk{margin-top:14px}
.pf-blk h3{margin:0 0 10px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.pf-priv{border-style:dashed}
.pf-lock{font-size:var(--fs-label);font-weight:600;color:var(--color-text-muted);margin-left:auto}
.pf-next{display:flex;gap:14px;align-items:center;justify-content:space-between;flex-wrap:wrap;padding-bottom:10px}
.pf-note{padding:8px 0;border-top:1px solid var(--color-border);font-size:var(--fs-small)}
.pf-small{display:block;margin-top:6px}
.pf-bar{height:6px;border-radius:3px;background:var(--color-bg-alt);margin-top:6px;overflow:hidden}.pf-bar i{display:block;height:100%;background:var(--color-brand)}
.pf-chk{display:flex;gap:10px;align-items:center;padding:6px 0}
.pf-chk i{display:grid;place-items:center;width:18px;height:18px;border:2px solid var(--color-border);border-radius:50%;font-size:var(--fs-label);font-style:normal}
.pf-chk.ok i{background:var(--color-brand);border-color:var(--color-brand);color:var(--color-on-brand)}
.pf-edit{margin-top:14px}
.pf-wins{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.pf-win{display:block;border:1px solid var(--color-border);border-radius:var(--radius-md);padding:14px;text-decoration:none;color:inherit}
.pf-win small{display:block;color:var(--color-text-muted);margin-top:6px}
.pf-steps{display:flex;gap:10px;flex-wrap:wrap}
.pf-step{flex:1;min-width:130px;border:1px solid var(--color-border);border-radius:var(--radius-md);padding:12px;opacity:.55}
.pf-step.ok{opacity:1;border-color:var(--color-brand)}
.pf-step b,.pf-step small{display:block}.pf-step small{color:var(--color-text-muted);margin-top:4px}
.pf-step i{display:block;width:10px;height:10px;border-radius:50%;background:var(--color-border);margin-bottom:8px}.pf-step.ok i{background:var(--color-brand)}
.pf-list{margin-top:10px}
.pf-tbl{overflow-x:auto;margin-top:12px}
.pf-tbl table{width:100%;border-collapse:collapse;font-size:var(--fs-small)}
.pf-tbl th{text-align:left;color:var(--color-text-muted);font-weight:600;padding:8px 10px;border-bottom:1px solid var(--color-border);white-space:nowrap}
.pf-tbl td{padding:8px 10px;border-bottom:1px solid var(--color-border);vertical-align:middle}
.pf-atool{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin:10px 0}
.pf-search{flex:1;min-width:200px;max-width:320px}
.mb-input.mini,.mb-select.mini{min-height:34px;padding:4px 8px}
/* Quản trị: bỏ cột phải để bảng đủ rộng */
.vk-shell.is-wide .vk-rail{display:none}
@media(min-width:1100px){.vk-shell.is-wide .vk-cols{grid-template-columns:minmax(0,1fr)}}
.pf-tbl td .mb-select,.pf-tbl td .mb-input{width:auto;max-width:170px}
.pf-atool .mb-chips{flex-wrap:wrap}

/* Mobile: bảng quản trị thành thẻ, yêu cầu xuống dòng */
.pf-req{flex-wrap:wrap;overflow-wrap:anywhere}
.pf-req > span:first-child{min-width:0;flex:1 1 220px}
.pf-atool{flex-direction:column;align-items:stretch}
@media(min-width:821px){.pf-atool{flex-direction:row;align-items:center}}
@media(max-width:820px){
  .pf-tbl{overflow-x:visible}
  .pf-tbl thead{display:none}
  .pf-tbl table,.pf-tbl tbody,.pf-tbl tr,.pf-tbl td{display:block;width:100%}
  .pf-tbl tr{border:1px solid var(--color-border);border-radius:var(--radius-md);padding:8px 12px;margin-bottom:10px}
  .pf-tbl td{border:0;display:flex;gap:10px;justify-content:space-between;align-items:center;padding:5px 0;overflow-wrap:anywhere}
  .pf-tbl td::before{content:attr(data-label);color:var(--color-text-muted);font-size:var(--fs-label);flex:none}
  .pf-tbl td[data-label=""]::before{content:none}
  .pf-tbl td[data-label=""]{justify-content:flex-end}
  .pf-tbl td .mb-select,.pf-tbl td .mb-input{max-width:60%}
  .pf-search{max-width:none}
}
.pf-req small{white-space:normal}

/* Khối Lịch sắp tới: nút gọn một hàng, menu ⋯ */
.cal-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:12px}
.cal-more-wrap{position:relative;margin-left:auto}
.cal-menu{position:absolute;right:0;top:calc(100% + 6px);z-index:20;min-width:200px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:6px;box-shadow:0 8px 24px rgba(0,0,0,.4)}
.cal-menu[hidden]{display:none}
.cal-item{display:block;width:100%;text-align:left;background:none;border:0;color:var(--color-text);padding:9px 10px;border-radius:var(--radius-sm,6px);font:inherit;cursor:pointer}
.cal-item:hover:not(:disabled){background:var(--color-bg-alt)}
.cal-item:disabled{opacity:.45;cursor:not-allowed}
.cal-item.danger{color:#ff7a6b}
.mb-cal-sub{margin:2px 0 0}
.pf-coachform{display:inline-flex;gap:6px;align-items:center;flex-wrap:wrap}
@media(max-width:820px){.pf-tbl td .mb-select{max-width:none;min-width:140px;flex:none}.pf-tbl td .pf-tiercell{display:flex;justify-content:flex-end;flex:1}}

/* Vòng 3 */
.vk-shell.no-side{grid-template-columns:minmax(0,1fr)}
.vk-shell.no-side .vk-side,.vk-shell.no-side .vk-chan-btn,.vk-shell.no-side .vk-backdrop{display:none}
@media(min-width:821px){.vk-shell.no-side{grid-template-columns:minmax(0,1fr)}}
.vk-link .lk svg{width:14px;height:14px}
.vk-invite{margin-top:14px}
.vk-res-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px;margin-top:14px}
.vk-res{display:flex;flex-direction:column;gap:6px}
.vk-res.locked{opacity:.85}
.vk-res-top{display:flex;justify-content:space-between;gap:8px;align-items:center}
.vk-res h3{margin:4px 0}
.vk-res .mb-row-actions{margin-top:auto;padding-top:8px}

/* Khoá học: lưới thẻ ảnh bìa lớn */
.vk-courses{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px;margin-top:14px}
.vk-course.big{padding:0;overflow:hidden;display:flex;flex-direction:column}
.vk-cover.big{position:relative;height:150px;display:grid;place-items:center;font-size:var(--fs-display);background:linear-gradient(135deg,#1f3a2a,#2f5a3f)}
.vk-cover.big.c1{background:linear-gradient(135deg,#1d3550,#2c5a86)}.vk-cover.big.c2{background:linear-gradient(135deg,#4a3a1b,#8a6a22)}.vk-cover.big.c3{background:linear-gradient(135deg,#33294d,#5a46a0)}
.vk-cover-lock{position:absolute;top:10px;right:12px;font-size:var(--fs-h3)}
.vk-course.big .vk-course-b{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.vk-course.big h3{margin:0}
.vk-course.big.locked .vk-cover{filter:saturate(.5)}
.vk-course.big .mb-row-actions{margin-top:auto}
.vk-cover.big{width:100%;border-radius:0}
.vk-course.big .vk-course-b .tag{align-self:flex-start}
.pf-tbl td .mb-select{min-width:190px}

/* Khoá chi tiết theo mẫu: Nội dung, module gấp/mở, bài một hàng */
.learn-head{display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.learn-head h1{margin:0 0 6px;font-size:var(--fs-h2)}
.learn-content{margin-top:18px}
.learn-content-head{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;margin-bottom:12px}
.learn-content-head h2{margin:0}
.learn-collapse{font-size:var(--fs-body);color:var(--color-text)}
.learn-mod-head{padding:16px 18px}
.learn-mod-head .learn-mod-title b{font-size:var(--fs-body)}
.learn-mod-count{margin-left:auto;color:var(--color-text-muted);font-size:var(--fs-small);white-space:nowrap}
.learn-chev{display:grid;place-items:center;color:var(--color-text-muted);transition:transform .15s}
.learn-chev svg{width:18px;height:18px}
.learn-mod.open .learn-chev{transform:rotate(180deg)}
.learn-row{display:flex;align-items:center;gap:14px;padding:10px 18px;border-top:1px solid var(--color-border);color:var(--color-text);text-decoration:none}
.learn-row.locked .learn-row-title{color:var(--color-text-secondary)}
.learn-thumb{flex:none;width:84px;height:48px;border-radius:8px;background:linear-gradient(135deg,rgba(255,255,255,.12),rgba(255,255,255,.04))}
.learn-row-title{flex:1;min-width:0;overflow-wrap:anywhere}
.learn-row-kind{flex:none;color:var(--color-text-muted);font-size:var(--fs-small)}
@media(max-width:820px){.learn-thumb{width:56px;height:34px}.learn-row{padding:10px 12px;gap:10px}}
.learn-side:empty,.learn-side:has(> [hidden]:only-child){display:none}
.learn-side{margin-top:14px}

/* Xem trước khoá cho khách và người Miễn phí */
.learn-main.is-preview{display:block}
.learn-pv-hero{display:block;text-align:center;margin-left:0;margin-right:0;border:0;background:var(--color-bg-deep,rgba(0,0,0,.28));border-radius:var(--radius-md);padding:32px 20px;margin-bottom:24px}
.learn-pv-hero h1{margin:0 0 8px;font-size:var(--fs-h2);line-height:1.2}
.learn-pv-hero p{margin:0 auto 16px;max-width:720px;color:var(--color-text-secondary);line-height:1.55}
.learn-pv-hero .btn{display:inline-flex;max-width:100%}
.learn-desc,.learn-content.preview{max-width:960px;margin-left:auto;margin-right:auto}
.learn-desc{margin-bottom:24px}
.learn-desc h2{margin:0 0 4px;font-size:var(--fs-body);font-weight:500;color:var(--color-text-secondary)}
.learn-desc p{margin:0;line-height:1.6;overflow-wrap:anywhere}
.learn-content.preview .learn-content-head h2{font-size:var(--fs-h3)}
.learn-row.locked .learn-dot.lock{width:18px;height:18px;display:inline-grid;place-items:center;background:none;border:0;color:var(--color-text-secondary)}
.learn-row.locked .learn-dot.lock svg{width:18px;height:18px}
.vk-center:has(.learn-pv-hero){padding-top:2px;padding-left:20px;padding-right:20px}
@media(max-width:820px){.mb-root:has(.learn-pv-hero){padding-left:0;padding-right:0}.vk-center:has(.learn-pv-hero){padding:2px 0 72px}.learn-pv-hero{padding:20px 16px}.learn-pv-hero h1{font-size:var(--fs-h3)}.learn-pv-hero .btn{width:auto;padding-left:22px;padding-right:22px}}

/* Khung khu thành viên tràn hết phần màn hình sau thanh icon của site (kiểu Circle): bỏ lề trái, trên, phải */
main.mb-root:has(> .vk-shell){padding:0;max-width:none}
main.mb-root:has(> .vk-shell) .vk-shell{min-height:100vh;min-height:100dvh;border-radius:0}
.vk-cols > main.vk-center{padding:0 0 48px}
@media(max-width:900px){.vk-cols .mb-chips{margin-right:-16px;padding-right:16px}}
/* Xem trước khoá: hero, Mô tả, Nội dung cùng một khung rộng tối đa 960px, căn giữa */
.learn-main.is-preview > .learn-pv-hero,.learn-main.is-preview > .learn-desc,.learn-main.is-preview > .learn-content.preview{width:100%;max-width:960px;margin-left:auto;margin-right:auto;box-sizing:border-box}