.lms-v2{--c-primary:#0B3D91;--c-primary-700:#143F8C;--c-primary-600:#1E4FB0;--c-primary-500:#2C66D6;--c-primary-400:#4D85E8;--c-primary-300:#7BA3E8;--c-primary-200:#B3CAF2;--c-primary-100:#DCE7FB;--c-primary-50:#EEF3FD;--c-primary-fg:#FFFFFF;--c-bg:#F4F6FA;--c-surface:#FFFFFF;--c-surface-elev:#FFFFFF;--c-surface-sunken:#EEF1F7;--c-surface-2:#F8FAFD;--c-fg:#0E1830;--c-fg-2:#2A3552;--c-fg-3:#5A6786;--c-fg-4:#8893B0;--c-fg-inverse:#FFFFFF;--c-border:#DDE3EE;--c-border-strong:#C5CEDF;--c-divider:#E7ECF4;--c-success:#167A4A;--c-success-bg:#DCF2E5;--c-success-fg:#0F5C36;--c-warning:#B4690E;--c-warning-bg:#FCE9CE;--c-warning-fg:#7A4607;--c-danger:#C0322B;--c-danger-bg:#FBE0DE;--c-danger-fg:#841F1A;--c-info:#1E6FB5;--c-info-bg:#DCEAF7;--c-info-fg:#134B7C;--c-accent:#6A3FBA;--c-accent-bg:#ECE2FB;--c-subj-toan:#1E6FB5;--c-subj-van:#B4690E;--c-subj-anh:#167A4A;--c-subj-su:#8C3A1F;--c-subj-dia:#167A4A;--c-subj-ly:#6A3FBA;--c-subj-hoa:#B4690E;--c-subj-sinh:#167A4A;--c-subj-tin:#2C66D6;--r-sm:4px;--r-md:8px;--r-lg:12px;--r-xl:16px;--r-pill:999px;--sh-sm:0 1px 2px rgba(11,24,48,0.05),0 1px 1px rgba(11,24,48,0.03);--sh-md:0 4px 10px rgba(11,24,48,0.07),0 1px 2px rgba(11,24,48,0.04);--sh-lg:0 10px 30px rgba(11,24,48,0.10),0 2px 6px rgba(11,24,48,0.05);--sh-focus:0 0 0 3px rgba(44,102,214,0.30);--ff-sans:"Be Vietnam Pro",system-ui,sans-serif;--ff-mono:"JetBrains Mono",ui-monospace,"SF Mono",Menlo,monospace;background:var(--c-bg);color:var(--c-fg);font-family:var(--ff-sans);font-size:14px;line-height:1.45}.dark .lms-v2,[data-theme=dark] .lms-v2{--c-primary:#5C92EA;--c-primary-700:#2C66D6;--c-primary-600:#4D85E8;--c-primary-500:#7BA3E8;--c-primary-400:#95B6EE;--c-primary-300:#B3CAF2;--c-primary-200:#4862A0;--c-primary-100:#243670;--c-primary-50:#1B2D52;--c-primary-fg:#08152E;--c-bg:#0A1226;--c-surface:#131C36;--c-surface-elev:#1A2442;--c-surface-sunken:#0E1730;--c-surface-2:#182242;--c-fg:#ECF0F9;--c-fg-2:#C7D0E5;--c-fg-3:#A5B0CC;--c-fg-4:#7E8BAD;--c-fg-inverse:#08152E;--c-border:#2F3B62;--c-border-strong:#44527E;--c-divider:#253158;--c-success:#41C281;--c-success-bg:#103823;--c-success-fg:#95E8B7;--c-warning:#E8AD52;--c-warning-bg:#3B260C;--c-warning-fg:#FBD79C;--c-danger:#EE6F69;--c-danger-bg:#3B1714;--c-danger-fg:#FAB2AE;--c-info:#4FA0E5;--c-info-bg:#102541;--c-info-fg:#A8CDEE;--c-accent:#A37BE6;--c-accent-bg:#251A40;--sh-sm:0 1px 2px rgba(0,0,0,0.45);--sh-md:0 4px 12px rgba(0,0,0,0.50);--sh-lg:0 12px 32px rgba(0,0,0,0.55);--sh-focus:0 0 0 3px rgba(123,163,232,0.45)}.lms-v2 *,.lms-v2 :after,.lms-v2 :before{box-sizing:border-box}.lms-v2 ::-webkit-scrollbar{width:10px;height:10px}.lms-v2 ::-webkit-scrollbar-track{background:transparent}.lms-v2 ::-webkit-scrollbar-thumb{background:var(--c-border);border-radius:var(--r-pill);border:2px solid var(--c-bg)}.lms-v2 ::-webkit-scrollbar-thumb:hover{background:var(--c-border-strong)}.lms-v2 :focus-visible{outline:none;box-shadow:var(--sh-focus);border-radius:var(--r-sm)}.lms-v2 .eyebrow,.lms-v2 .mono{font-family:var(--ff-mono);font-size:10.5px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--c-fg-3)}.lms-v2 .btn{display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 12px;border-radius:var(--r-md);font-size:13px;font-weight:600;border:1px solid transparent;background:transparent;color:var(--c-fg-2);transition:background .12s,border-color .12s,color .12s;white-space:nowrap;cursor:pointer;text-decoration:none}.lms-v2 .btn:hover{background:var(--c-surface-sunken)}.lms-v2 .btn--primary{background:var(--c-primary);color:var(--c-primary-fg);border-color:var(--c-primary)}.lms-v2 .btn--primary:hover{background:var(--c-primary-700);border-color:var(--c-primary-700)}.lms-v2 .btn--ghost{color:var(--c-fg-2)}.lms-v2 .btn--secondary{background:var(--c-surface);border-color:var(--c-border);color:var(--c-fg)}.lms-v2 .btn--secondary:hover{border-color:var(--c-border-strong);background:var(--c-surface-2)}.lms-v2 .btn--danger{color:var(--c-danger)}.lms-v2 .btn--sm{height:26px;padding:0 8px;font-size:12px}.lms-v2 .btn--lg{height:40px;padding:0 16px;font-size:14px}.lms-v2 .btn:disabled{opacity:.55;cursor:not-allowed}.lms-v2 .pill{display:inline-flex;align-items:center;gap:4px;padding:2px 8px;border-radius:var(--r-pill);font-size:11px;font-weight:600;background:var(--c-primary-50);color:var(--c-primary);border:1px solid var(--c-primary-100)}.lms-v2 .pill--success{background:var(--c-success-bg);color:var(--c-success-fg);border-color:transparent}.lms-v2 .pill--warning{background:var(--c-warning-bg);color:var(--c-warning-fg);border-color:transparent}.lms-v2 .pill--danger{background:var(--c-danger-bg);color:var(--c-danger-fg);border-color:transparent}.lms-v2 .pill--info{background:var(--c-info-bg);color:var(--c-info-fg);border-color:transparent}.lms-v2 .pill--neutral{background:var(--c-surface-sunken);color:var(--c-fg-2);border-color:var(--c-border)}.lms-v2 .pill--mono{font-family:var(--ff-mono);letter-spacing:.06em;font-size:10.5px;text-transform:uppercase}.lms-v2 .card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);box-shadow:var(--sh-sm)}.lms-v2 .divider{height:1px;background:var(--c-divider)}.lms-v2 input.input,.lms-v2 select.select,.lms-v2 textarea.input{width:100%;height:32px;padding:0 10px;border:1px solid var(--c-border);border-radius:var(--r-md);background:var(--c-surface);color:var(--c-fg);font-family:inherit;font-size:14px}.lms-v2 textarea.input{height:auto;padding:8px 10px;line-height:1.5}.lms-v2 .hstack{display:flex;align-items:center;gap:8px}.lms-v2 .vstack{display:flex;flex-direction:column;gap:8px}.lms-v2 .grow{flex:1;min-width:0}.lms-v2 .muted{color:var(--c-fg-3)}.lms-v2 .dim{color:var(--c-fg-4)}.lms-v2 .text-num{font-family:var(--ff-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}.lms-v2 .spark-stroke{stroke:var(--c-primary);fill:none;stroke-width:1.5}.lms-v2 .spark-area{fill:var(--c-primary-50)}.dark .lms-v2 .spark-area,[data-theme=dark] .lms-v2 .spark-area{fill:rgba(92,146,234,.18)}.lms-v2 .topbar{position:sticky;top:0;z-index:30;height:56px;display:flex;align-items:center;gap:16px;padding:0 20px;background:var(--c-surface);border-bottom:1px solid var(--c-border)}.lms-v2 .topbar__brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:14px;color:var(--c-fg);text-decoration:none}.lms-v2 .topbar__brand-mark{width:28px;height:28px;border-radius:8px;background:var(--c-primary);color:var(--c-primary-fg);display:grid;place-items:center;font-weight:800;font-size:13px}.dark .lms-v2 .topbar__brand-mark,[data-theme=dark] .lms-v2 .topbar__brand-mark{background:var(--c-primary-600);color:#fff}.lms-v2 .topbar__product{display:inline-flex;align-items:center;height:24px;padding:0 8px;border-radius:var(--r-sm);background:var(--c-primary-50);color:var(--c-primary);font-family:var(--ff-mono);font-size:10.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;border:1px solid var(--c-primary-100)}.lms-v2 .topbar__breadcrumb{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--c-fg-3);min-width:0}.lms-v2 .topbar__crumb{background:transparent;border:0;color:var(--c-fg-3);padding:4px 8px;border-radius:var(--r-sm);cursor:pointer;text-decoration:none;max-width:240px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-family:inherit}.lms-v2 .topbar__crumb:hover{background:var(--c-surface-sunken);color:var(--c-fg)}.lms-v2 .topbar__crumb--current{color:var(--c-fg);font-weight:600;cursor:default}.lms-v2 .topbar__crumb-sep{color:var(--c-fg-4)}.lms-v2 .topbar__right{margin-left:auto;display:flex;align-items:center;gap:8px}.lms-v2 .topbar__kbd{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 8px 0 10px;border-radius:var(--r-md);border:1px solid var(--c-border);background:var(--c-surface);color:var(--c-fg-3);font-size:12px;cursor:pointer;font-family:inherit}.lms-v2 .topbar__kbd:hover{border-color:var(--c-border-strong)}.lms-v2 .topbar__kbd kbd{display:inline-flex;align-items:center;height:18px;padding:0 4px;border-radius:4px;background:var(--c-surface-sunken);border:1px solid var(--c-border);font-family:var(--ff-mono);font-size:10.5px;color:var(--c-fg-2)}.lms-v2 .topbar__icon-btn{width:32px;height:32px;border-radius:var(--r-md);border:1px solid transparent;background:transparent;color:var(--c-fg-2);display:grid;place-items:center;position:relative;cursor:pointer}.lms-v2 .topbar__icon-btn:hover{background:var(--c-surface-sunken);color:var(--c-fg)}.lms-v2 .topbar__icon-btn .badge-dot{position:absolute;top:6px;right:6px;width:7px;height:7px;border-radius:50%;background:var(--c-danger);border:2px solid var(--c-surface)}.lms-v2 .topbar__avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--c-primary-500),var(--c-primary));color:var(--c-primary-fg);display:grid;place-items:center;font-weight:700;font-size:12px;text-decoration:none}.lms-v2 .page{padding:20px 24px 64px;max-width:1440px;margin:0 auto}.lms-v2 .page-header{display:flex;align-items:flex-end;gap:16px;margin-bottom:16px}.lms-v2 .page-header__main{flex:1;min-width:0}.lms-v2 .page-header__eyebrow{margin-bottom:4px}.lms-v2 .page-header__title{font-size:22px;font-weight:700;color:var(--c-fg);margin:0;letter-spacing:-.01em}.lms-v2 .page-header__subtitle{margin:4px 0 0;color:var(--c-fg-3);font-size:13px}.lms-v2 .page-header__actions{display:flex;gap:8px;flex-wrap:wrap}.lms-v2 .page-tabs{display:flex;gap:2px;border-bottom:1px solid var(--c-border);margin-bottom:16px;overflow-x:auto}.lms-v2 .page-tabs__tab{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;background:transparent;border:0;color:var(--c-fg-3);font-size:13px;font-weight:600;border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap;cursor:pointer;text-decoration:none;font-family:inherit}.lms-v2 .page-tabs__tab:hover{color:var(--c-fg)}.lms-v2 .page-tabs__tab--active{color:var(--c-primary);border-bottom-color:var(--c-primary)}.lms-v2 .page-tabs__count{display:inline-flex;align-items:center;height:17px;padding:0 6px;border-radius:var(--r-pill);background:var(--c-surface-sunken);color:var(--c-fg-3);font-size:10.5px;font-weight:700;font-family:var(--ff-mono)}.lms-v2 .page-tabs__tab--active .page-tabs__count{background:var(--c-primary-50);color:var(--c-primary)}.lms-v2 .cat-layout{display:grid;grid-template-columns:220px 1fr;gap:20px;align-items:start}@media (max-width:960px){.lms-v2 .cat-layout{grid-template-columns:1fr}}.lms-v2 .cat-filters{position:sticky;top:76px;z-index:5;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);padding:14px}@media (max-width:960px){.lms-v2 .cat-filters{position:static;top:auto}}.lms-v2 .cat-filters__search{position:relative;margin-bottom:12px}.lms-v2 .cat-filters__search-icon{position:absolute;left:8px;top:50%;transform:translateY(-50%);color:var(--c-fg-3)}.lms-v2 .cat-filters__search input{width:100%;height:32px;padding:0 10px 0 30px;border:1px solid var(--c-border);border-radius:var(--r-md);background:var(--c-surface);color:var(--c-fg);font-size:13px;font-family:inherit}.lms-v2 .cat-filters__group{margin-bottom:14px}.lms-v2 .cat-filters__group-title{font-family:var(--ff-mono);font-size:10.5px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--c-fg-3);margin-bottom:8px}.lms-v2 .cat-filters__chips{display:flex;flex-wrap:wrap;gap:4px}.lms-v2 .cat-chip{display:inline-flex;align-items:center;gap:4px;height:24px;padding:0 9px;border:1px solid var(--c-border);background:var(--c-surface);color:var(--c-fg-2);border-radius:var(--r-pill);font-size:12px;font-weight:500;cursor:pointer;text-decoration:none;font-family:inherit}.lms-v2 .cat-chip:hover{border-color:var(--c-border-strong)}.lms-v2 .cat-chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:var(--c-primary-fg)}.lms-v2 .cat-chip.is-active .cat-chip__count{color:var(--c-primary-fg);opacity:.75}.lms-v2 .cat-chip__count{font-family:var(--ff-mono);font-size:10.5px;color:var(--c-fg-4)}.lms-v2 .cat-filters__radio{display:flex;align-items:center;gap:8px;padding:6px 0;font-size:13px;color:var(--c-fg-2);cursor:pointer}.lms-v2 .cat-filters__radio input{accent-color:var(--c-primary)}.lms-v2 .cat-filters__radio .count{margin-left:auto;font-family:var(--ff-mono);font-size:11px;color:var(--c-fg-4)}.lms-v2 .cat-toolbar{display:flex;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap}.lms-v2 .cat-toolbar__count{font-size:13px;color:var(--c-fg-3)}.lms-v2 .cat-toolbar__count strong{color:var(--c-fg);font-weight:700}.lms-v2 .cat-toolbar__right{margin-left:auto;display:flex;align-items:center;gap:6px}.lms-v2 .viewtoggle{display:inline-flex;height:30px;padding:2px;background:var(--c-surface-sunken);border:1px solid var(--c-border);border-radius:var(--r-md)}.lms-v2 .viewtoggle button{width:28px;height:24px;border:0;background:transparent;border-radius:5px;color:var(--c-fg-3);display:grid;place-items:center;cursor:pointer}.lms-v2 .viewtoggle button.is-active{background:var(--c-surface);color:var(--c-fg);box-shadow:var(--sh-sm)}.lms-v2 .cat-sort{height:30px;padding:0 24px 0 10px;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-md);color:var(--c-fg-2);font-size:13px;font-weight:500;-webkit-appearance:none;-moz-appearance:none;appearance:none;font-family:inherit}.lms-v2 .cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}@media (max-width:1180px){.lms-v2 .cat-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:640px){.lms-v2 .cat-grid{grid-template-columns:1fr}}.lms-v2 .cc{display:flex;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);overflow:hidden;transition:border-color .12s,box-shadow .12s;cursor:pointer;text-decoration:none;color:inherit}.lms-v2 .cc:hover{border-color:var(--c-border-strong);box-shadow:var(--sh-md)}.lms-v2 .cc__thumb{width:100px;flex-shrink:0;background:var(--subj-color,var(--c-primary));position:relative;overflow:hidden}.lms-v2 .cc__thumb:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 100%,rgba(255,255,255,.2) 0,transparent 50%),repeating-linear-gradient(135deg,transparent 0 14px,rgba(255,255,255,.06) 14px 15px)}.lms-v2 .cc__thumb-content{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:space-between;padding:8px 10px;color:rgba(255,255,255,.95)}.lms-v2 .cc__thumb-mono{font-family:var(--ff-mono);font-size:9.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;opacity:.85}.lms-v2 .cc__thumb-glyph{font-size:28px;font-weight:800;align-self:flex-end;line-height:1;opacity:.55}.lms-v2 .cc__body{flex:1;padding:10px 12px;display:flex;flex-direction:column;min-width:0}.lms-v2 .cc__head{display:flex;align-items:center;gap:6px;margin-bottom:4px;flex-wrap:wrap}.lms-v2 .cc__title{font-size:13.5px;font-weight:700;color:var(--c-fg);line-height:1.35;margin:0 0 4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.lms-v2 .cc__author{font-size:11.5px;color:var(--c-fg-3);margin-bottom:auto}.lms-v2 .cc__meta{display:flex;align-items:center;gap:10px;margin-top:6px;padding-top:6px;border-top:1px dashed var(--c-divider);font-size:11.5px;color:var(--c-fg-3);flex-wrap:wrap}.lms-v2 .cc__meta-item{display:inline-flex;align-items:center;gap:3px}.lms-v2 .cc__meta-item strong{color:var(--c-fg-2);font-weight:600}.lms-v2 .cat-list{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);overflow:hidden}.lms-v2 .cat-row{display:grid;grid-template-columns:40px 1fr 160px 80px 100px 90px;gap:12px;align-items:center;padding:10px 14px;border-bottom:1px solid var(--c-divider);cursor:pointer;text-decoration:none;color:inherit}.lms-v2 .cat-row:last-child{border-bottom:0}.lms-v2 .cat-row:hover{background:var(--c-surface-2)}.lms-v2 .cat-row__thumb{width:40px;height:40px;border-radius:var(--r-md);background:var(--subj-color,var(--c-primary));color:white;display:grid;place-items:center;font-family:var(--ff-mono);font-size:11px;font-weight:700}.lms-v2 .cat-row__title{font-size:13px;font-weight:600;color:var(--c-fg);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.lms-v2 .cat-row__sub{font-size:11.5px;color:var(--c-fg-3);margin-top:2px}.lms-v2 .cat-row__meta{font-size:12px;color:var(--c-fg-3);font-variant-numeric:tabular-nums}.lms-v2 .cat-paging{display:flex;justify-content:center;gap:4px;margin-top:20px}.lms-v2 .cat-paging a,.lms-v2 .cat-paging button{width:28px;height:28px;border:1px solid var(--c-border);background:var(--c-surface);color:var(--c-fg-2);border-radius:var(--r-md);font-size:12px;font-weight:600;cursor:pointer;display:grid;place-items:center;text-decoration:none;font-family:inherit}.lms-v2 .cat-paging a:hover,.lms-v2 .cat-paging button:hover{border-color:var(--c-border-strong)}.lms-v2 .cat-paging a.is-active,.lms-v2 .cat-paging button.is-active{background:var(--c-primary);border-color:var(--c-primary);color:var(--c-primary-fg)}.lms-v2 .cd-layout{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:20px;align-items:start}@media (max-width:1100px){.lms-v2 .cd-layout{grid-template-columns:1fr}}.lms-v2 .cd-hero{position:relative;height:200px;border-radius:var(--r-lg);overflow:hidden;background:linear-gradient(135deg,var(--subj-color,var(--c-primary)) 0,color-mix(in srgb,var(--subj-color,var(--c-primary)) 70%,#000 30%) 100%)}.lms-v2 .cd-hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 85% -10%,rgba(255,255,255,.18) 0,transparent 45%),radial-gradient(circle at 10% 110%,rgba(255,255,255,.12) 0,transparent 50%),repeating-linear-gradient(135deg,transparent 0 30px,rgba(255,255,255,.05) 30px 31px)}.lms-v2 .cd-hero__content{position:relative;height:100%;padding:18px 22px;display:flex;flex-direction:column;justify-content:space-between;color:rgba(255,255,255,.98)}.lms-v2 .cd-hero__chips{display:flex;gap:6px;flex-wrap:wrap}.lms-v2 .cd-hero__chip{display:inline-flex;align-items:center;gap:4px;height:22px;padding:0 8px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.25);border-radius:var(--r-pill);font-size:11px;font-weight:600;color:#fff}.lms-v2 .cd-hero__title{font-size:24px;font-weight:700;margin:0 0 6px;letter-spacing:-.01em;text-shadow:0 1px 2px rgba(0,0,0,.2);max-width:80%}.lms-v2 .cd-hero__meta{display:flex;align-items:center;gap:18px;font-size:12.5px;opacity:.95;flex-wrap:wrap}.lms-v2 .cd-hero__meta span{display:inline-flex;align-items:center;gap:4px}.lms-v2 .cd-tabs{display:flex;gap:2px;border-bottom:1px solid var(--c-border);margin:16px 0 14px}.lms-v2 .cd-tabs__tab{background:transparent;border:0;padding:8px 12px;font-size:13px;font-weight:600;color:var(--c-fg-3);border-bottom:2px solid transparent;margin-bottom:-1px;cursor:pointer;text-decoration:none;font-family:inherit}.lms-v2 .cd-tabs__tab--active{color:var(--c-primary);border-bottom-color:var(--c-primary)}.lms-v2 .cd-desc{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);padding:16px 18px;margin-bottom:14px}.lms-v2 .cd-desc__title{font-size:14px;font-weight:700;color:var(--c-fg);margin:0 0 8px}.lms-v2 .cd-desc p{color:var(--c-fg-2);font-size:13.5px;line-height:1.6;margin:0 0 8px}.lms-v2 .cd-out{display:grid;grid-template-columns:1fr 1fr;gap:8px 12px;margin-top:8px}@media (max-width:720px){.lms-v2 .cd-out{grid-template-columns:1fr}}.lms-v2 .cd-out__item{display:flex;gap:8px;align-items:flex-start;font-size:13px;color:var(--c-fg-2);line-height:1.5}.lms-v2 .cd-out__item-icon{width:16px;height:16px;border-radius:50%;background:var(--c-primary-50);color:var(--c-primary);display:grid;place-items:center;flex-shrink:0;margin-top:2px}.lms-v2 .cd-toc{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);overflow:hidden}.lms-v2 .cd-toc__head{display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid var(--c-divider);flex-wrap:wrap}.lms-v2 .cd-toc__head h3{font-size:14px;font-weight:700;margin:0}.lms-v2 .cd-toc__head .pill{margin-left:auto}.lms-v2 .cd-toc__count{color:var(--c-fg-3);font-size:12.5px}.lms-v2 .cd-sec{border-bottom:1px solid var(--c-divider)}.lms-v2 .cd-sec:last-child{border-bottom:0}.lms-v2 .cd-sec__head{display:flex;align-items:center;gap:10px;padding:10px 16px;background:var(--c-surface-2);font-size:13px;font-weight:700;color:var(--c-fg);cursor:pointer;width:100%;border:0;text-align:left;font-family:inherit}.lms-v2 .cd-sec__head:hover{background:var(--c-surface-sunken)}.lms-v2 .cd-sec__chevron{color:var(--c-fg-3);transition:transform .12s}.lms-v2 .cd-sec__head[aria-expanded=false] .cd-sec__chevron{transform:rotate(-90deg)}.lms-v2 .cd-sec__meta{margin-left:auto;font-family:var(--ff-mono);font-size:10.5px;color:var(--c-fg-3)}.lms-v2 .cd-les{display:grid;grid-template-columns:24px 1fr auto auto auto;gap:12px;align-items:center;padding:8px 16px 8px 32px;font-size:13px;color:var(--c-fg-2);border-top:1px solid var(--c-divider);min-height:40px;text-decoration:none}.lms-v2 .cd-les:hover{background:var(--c-surface-2)}.lms-v2 .cd-les__icon{width:22px;height:22px;border-radius:6px;display:grid;place-items:center}.lms-v2 .cd-les__icon--done{background:var(--c-success-bg);color:var(--c-success)}.lms-v2 .cd-les__icon--current{background:var(--c-primary-100);color:var(--c-primary)}.lms-v2 .cd-les__icon--lock{background:var(--c-surface-sunken);color:var(--c-fg-4)}.lms-v2 .cd-les__title{font-weight:500;color:var(--c-fg);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.lms-v2 .cd-les--current .cd-les__title{color:var(--c-primary);font-weight:700}.lms-v2 .cd-les--lock .cd-les__title{color:var(--c-fg-4)}.lms-v2 .cd-les__type{font-family:var(--ff-mono);font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;padding:2px 6px;border-radius:4px;background:var(--c-surface-sunken);color:var(--c-fg-3)}.lms-v2 .cd-les__type--quiz{background:var(--c-warning-bg);color:var(--c-warning-fg)}.lms-v2 .cd-les__type--test{background:var(--c-danger-bg);color:var(--c-danger-fg)}.lms-v2 .cd-les__type--interactive{background:var(--c-info-bg);color:var(--c-info-fg)}.lms-v2 .cd-les__type--practice{background:var(--c-accent-bg);color:var(--c-accent)}.lms-v2 .cd-les__dur{font-family:var(--ff-mono);font-size:11.5px;color:var(--c-fg-3)}.lms-v2 .cd-les__xp{font-family:var(--ff-mono);font-size:11px;font-weight:700;color:var(--c-primary)}.lms-v2 .cd-enroll{position:sticky;top:76px;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-sm)}.lms-v2 .cd-enroll__head{padding:14px 16px 0}.lms-v2 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.cd-enroll__stats{display:grid;grid-template-columns:1fr 1fr}.lms-v2 .cd-stat{padding:10px 16px;border-right:1px solid var(--c-divider);border-bottom:1px solid var(--c-divider)}.lms-v2 .cd-stat:nth-child(2n){border-right:0}.lms-v2 .cd-stat__label{font-family:var(--ff-mono);font-size:9.5px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--c-fg-4)}.lms-v2 .cd-stat__value{font-size:16px;font-weight:700;color:var(--c-fg);margin-top:2px;font-variant-numeric:tabular-nums}.lms-v2 .cd-stat__delta{font-size:11px;color:var(--c-fg-3)}.lms-v2 .cd-enroll__skills{padding:14px 16px}.lms-v2 .cd-enroll__skills-title{font-family:var(--ff-mono);font-size:10.5px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--c-fg-3);margin-bottom:6px}.lms-v2 .cd-skill{display:flex;align-items:center;gap:8px;padding:4px 0;font-size:12.5px;color:var(--c-fg-2)}.lms-v2 .cd-skill__bar{flex:1;height:4px;background:var(--c-surface-sunken);border-radius:var(--r-pill);overflow:hidden}.lms-v2 .cd-skill__bar>span{display:block;height:100%;background:var(--c-primary);border-radius:var(--r-pill)}.lms-v2 .cd-skill__pct{font-family:var(--ff-mono);font-size:11px;color:var(--c-fg-3);width:32px;text-align:right}