.tacs-scope{--yellow:#fce138;--primary-cta:#fce138;--primary-cta-text:#1b1b18;--amber:#fce138;--amber-2:#faf0a0;--amber-3:#1b1b18;--light-yellow:#faf0a0;--callout-bg:#faf0a0;--navy:#252e5f;--ink-2:#252e5f;--ink-deep:#1b2247;--jade:#252e5f;--jade-3:#1b2247;--light-blue:#cae0f8;--card-secondary:#cae0f8;--info-bg:#cae0f8;--jade-2:#cae0f8;--paper:#fefefe;--canvas:#fefefe;--bg:#fefefe;--card:#fff;--bg-alt:#f8f8f9;--surface-secondary:#f8f8f9;--surface:#f8f8f9;--footer-bg:#f8f8f9;--ink:#1b1b18;--text-primary:#1b1b18;--slate:#5e6673;--mute:#5e6673;--text-secondary:#5e6673;--line:#c7c7cc;--line-2:#e5e5ea;--surface-warm:#c7c7cc;--border:#c7c7cc;--red:#b4402f;--red-2:#fae9e6;--sans:"Be Vietnam Pro", system-ui, -apple-system, sans-serif;--mono:"JetBrains Mono", ui-monospace, monospace;--ipa:"Charis SIL", "Doulos SIL", Georgia, serif;--r:10px;--r-lg:14px;--maxw:1140px;--sh:0 10px 25px #252e5f14;background:var(--paper);color:var(--ink);font-family:var(--sans);min-height:100vh}.tacs-scope .wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}.tacs-scope .ipa-label{font-family:var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--navy);align-items:center;gap:9px;margin-bottom:14px;font-size:11px;font-weight:700;display:flex}.tacs-scope .ipa-label:before,.tacs-scope .ipa-label:after{content:"/";opacity:.5;color:var(--yellow);font-size:15px}.tacs-scope .ipa-label.c{justify-content:center}.tacs-scope .btn{border-radius:var(--r);white-space:nowrap;text-align:center;cursor:pointer;border:1px solid #0000;justify-content:center;align-items:center;gap:8px;padding:11px 20px;font-size:14px;font-weight:700;text-decoration:none;transition:all .2s ease-in-out;display:inline-flex}.tacs-scope .btn-primary,.tacs-scope .btn-amber,.tacs-scope .btn-yellow{background:var(--yellow);color:#1b1b18;border-color:#eed52b;box-shadow:0 2px 6px #fce13840}.tacs-scope .btn-primary:hover,.tacs-scope .btn-amber:hover,.tacs-scope .btn-yellow:hover{background:var(--light-yellow);color:#1b1b18;border-color:var(--yellow);transform:translateY(-1px);box-shadow:0 4px 14px #fce13859}.tacs-scope .btn-primary:active,.tacs-scope .btn-amber:active,.tacs-scope .btn-yellow:active{transform:translateY(0)}.tacs-scope .btn-navy,.tacs-scope .btn-secondary,.tacs-scope .btn-dark,.tacs-scope .btn-jade{background:var(--navy);color:#fefefe;border-color:var(--navy);box-shadow:0 2px 6px #252e5f26}.tacs-scope .btn-navy:hover,.tacs-scope .btn-secondary:hover,.tacs-scope .btn-dark:hover,.tacs-scope .btn-jade:hover{background:var(--ink-deep);color:#fff;border-color:var(--ink-deep);transform:translateY(-1px);box-shadow:0 4px 12px #252e5f40}.tacs-scope .btn-ghost{border:1.5px solid var(--line);color:var(--navy);background:var(--card)}.tacs-scope .btn-ghost:hover{border-color:var(--navy);color:var(--navy);background:var(--bg-alt)}.tacs-scope .btn-sm{border-radius:8px;padding:7px 14px;font-size:13px}.tacs-scope .btn-lg{padding:15px 30px;font-size:15.5px}.tacs-scope .btn-block{width:100%;display:flex}.tacs-scope section{padding:62px 0}.tacs-scope .sec-head{max-width:640px;margin-bottom:32px}.tacs-scope .sec-head.c{text-align:center;margin-left:auto;margin-right:auto}.tacs-scope h1,.tacs-scope h2,.tacs-scope h3,.tacs-scope h4,.tacs-scope h5,.tacs-scope h6{color:var(--navy);font-weight:800}.tacs-scope h1{letter-spacing:-.025em;font-size:clamp(32px,4.4vw,50px);line-height:1.13}.tacs-scope h2{letter-spacing:-.02em;font-size:clamp(24px,3vw,33px);line-height:1.22}.tacs-scope h3{letter-spacing:-.01em;font-size:18.5px;line-height:1.35}.tacs-scope p{color:var(--ink)}.tacs-scope .sub{color:var(--slate);margin-top:10px;font-size:15.5px}.tacs-scope .lede{color:var(--slate);max-width:48ch;font-size:16.5px}.tacs-scope .bg-white{background:var(--card)}.tacs-scope .bg-alt,.tacs-scope .sec-alt{background:var(--bg-alt)}.tacs-scope .bg-navy,.tacs-scope .bg-ink{background:var(--navy);color:#fefefe}.tacs-scope .bg-navy h1,.tacs-scope .bg-navy h2,.tacs-scope .bg-navy h3,.tacs-scope .bg-ink h1,.tacs-scope .bg-ink h2,.tacs-scope .bg-ink h3{color:#fefefe}.tacs-scope .bg-navy .sub,.tacs-scope .bg-navy .lede,.tacs-scope .bg-ink .sub,.tacs-scope .bg-ink .lede{color:var(--light-blue)}.tacs-scope .bg-navy .ipa-label,.tacs-scope .bg-ink .ipa-label{color:var(--yellow)}.tacs-scope .bg-info,.tacs-scope .sec-feature{background:var(--light-blue);color:var(--ink)}.tacs-scope .callout-yellow,.tacs-scope .highlight-box{background:var(--light-yellow);border:1px solid var(--yellow);color:var(--ink);border-radius:10px;padding:16px 20px}.tacs-scope .callout-info{background:var(--light-blue);border:1px solid var(--line);color:var(--navy);border-radius:10px;padding:16px 20px}.tacs-scope .hero{padding:60px 0}.tacs-scope .g2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:20px;display:grid}.tacs-scope .g3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;display:grid}.tacs-scope .g4{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;display:grid}.tacs-scope .split{grid-template-columns:1.12fr .88fr;align-items:center;gap:48px;display:grid}@media (max-width:768px){.tacs-scope .split{grid-template-columns:1fr}}.tacs-scope .stats{border-top:1px solid var(--line);gap:24px;margin-top:32px;padding-top:24px;display:flex}.tacs-scope .stats div{color:var(--slate);flex-direction:column;font-size:13px;display:flex}.tacs-scope .stats b{color:var(--navy);font-size:22px;font-weight:800}.tacs-scope .card{background:var(--card);border:1px solid var(--line);color:inherit;border-radius:12px;flex-direction:column;text-decoration:none;transition:all .18s;display:flex;overflow:hidden}.tacs-scope .card.link:hover{border-color:var(--navy);box-shadow:var(--sh);transform:translateY(-3px)}.tacs-scope .card .thumb{aspect-ratio:4/3;object-fit:cover;background:var(--bg-alt);width:100%}.tacs-scope .card-body{flex-direction:column;flex:1;gap:9px;padding:17px 18px;display:flex}.tacs-scope .card p{color:var(--slate);font-size:13.8px}.tacs-scope .card p.overview{-webkit-line-clamp:2;text-overflow:ellipsis;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.tacs-scope .card-foot{border-top:1px solid var(--line-2);justify-content:space-between;align-items:center;gap:10px;padding:13px 18px;display:flex}.tacs-scope .card-foot .meta{font-family:var(--mono);color:var(--slate);flex-wrap:wrap;gap:12px;font-size:11px;display:flex}.tacs-scope .card-secondary{background:var(--light-blue);border:1px solid var(--line);color:var(--ink);border-radius:12px;padding:20px}.tacs-scope .card-dark{background:var(--navy);color:#fefefe;border:1px solid #ffffff1a;border-radius:12px;padding:20px}.tacs-scope .card-dark h3,.tacs-scope .card-dark h4{color:#fefefe}.tacs-scope .card-dark p{color:var(--light-blue)}.tacs-scope .panel{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:22px}.tacs-scope .tag{font-family:var(--mono);letter-spacing:.09em;text-transform:uppercase;background:var(--light-blue);color:var(--navy);border-radius:5px;align-self:flex-start;align-items:center;gap:5px;padding:3px 8px;font-size:10.5px;font-weight:700;display:inline-flex}.tacs-scope .tag.amber,.tacs-scope .tag.yellow{background:var(--light-yellow);color:var(--ink);border:1px solid #fce13880;font-weight:700}.tacs-scope .tag.navy{background:var(--navy);color:#fefefe}.tacs-scope .price{color:var(--navy);font-size:22px;font-weight:800}.tacs-scope .price s{color:var(--slate);margin-left:8px;font-size:14px;font-weight:400}.vin:after{content:"";background:var(--yellow);opacity:.7;z-index:-1;height:.28em;position:absolute;bottom:.06em;left:0;right:0}.tacs-learn-workspace{color:#fefefe;background:#1b2247;flex-direction:column;min-height:100vh;display:flex}.tacs-learn-header{background:var(--navy);z-index:100;border-bottom:1px solid #ffffff1f;justify-content:space-between;align-items:center;padding:12px 24px;display:flex;position:sticky;top:0;box-shadow:0 4px 20px #00000040}.tacs-learn-header-left{align-items:center;gap:16px;display:flex}.tacs-learn-back-btn{color:#cae0f8;background:#ffffff14;border-radius:6px;align-items:center;gap:6px;padding:6px 12px;font-size:13.5px;font-weight:600;text-decoration:none;transition:all .2s;display:inline-flex}.tacs-learn-back-btn:hover{color:#fff;background:#ffffff29}.tacs-learn-title-badge{color:#fff;white-space:nowrap;text-overflow:ellipsis;max-width:420px;font-size:14px;font-weight:700;overflow:hidden}.tacs-learn-header-right{align-items:center;gap:16px;display:flex}.tacs-learn-progress-box{background:#ffffff14;border:1px solid #ffffff1f;border-radius:8px;align-items:center;gap:12px;padding:6px 14px;display:flex}.tacs-learn-progress-bar{background:#ffffff2e;border-radius:4px;width:120px;height:8px;position:relative;overflow:hidden}.tacs-learn-progress-fill{background:var(--yellow);border-radius:4px;height:100%;transition:width .3s}.tacs-learn-progress-text{color:var(--yellow);font-size:12.5px;font-weight:700;font-family:var(--mono)}.tacs-learn-cert-btn{background:var(--yellow);color:#1b1b18;cursor:pointer;border:none;border-radius:8px;align-items:center;gap:6px;padding:7px 14px;font-size:13px;font-weight:700;transition:transform .2s,box-shadow .2s;display:inline-flex;box-shadow:0 2px 10px #fce1384d}.tacs-learn-cert-btn:hover{background:var(--light-yellow);transform:translateY(-1px);box-shadow:0 4px 16px #fce13880}.tacs-learn-cert-btn:disabled{opacity:.5;cursor:not-allowed;box-shadow:none;color:#94a3b8;background:#ffffff1a}.tacs-learn-body{flex:1;grid-template-columns:1fr 360px;min-height:calc(100vh - 60px);transition:grid-template-columns .3s;display:grid}.tacs-learn-body.sidebar-collapsed{grid-template-columns:1fr 0}.tacs-learn-main{background:#141b38;padding:24px;overflow-y:auto}.tacs-video-wrapper{background:#000;border-radius:16px;width:100%;padding-top:56.25%;position:relative;overflow:hidden;box-shadow:0 10px 30px #00000080}.tacs-video-iframe{border:none;width:100%;height:100%;position:absolute;top:0;left:0}.tacs-player-controls{background:var(--navy);border:1px solid #ffffff1a;border-radius:12px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-top:16px;padding:12px 20px;display:flex}.tacs-tabs-nav{border-bottom:2px solid #ffffff1f;gap:8px;margin-top:24px;padding-bottom:2px;display:flex;overflow-x:auto}.tacs-tab-btn{color:#cae0f8;cursor:pointer;white-space:nowrap;background:0 0;border:none;border-bottom:3px solid #0000;padding:10px 18px;font-size:14px;font-weight:600;transition:all .2s}.tacs-tab-btn:hover{color:#fefefe}.tacs-tab-btn.active{color:var(--yellow);border-bottom-color:var(--yellow);font-weight:700}.tacs-tab-panel{color:#fefefe;background:#1e284f;border:1px solid #ffffff1a;border-radius:14px;margin-top:20px;padding:24px}.tacs-timestamp-tag{color:var(--light-blue);font-family:var(--mono);cursor:pointer;background:#cae0f826;border-radius:6px;align-items:center;gap:4px;padding:4px 10px;font-size:12px;font-weight:700;transition:background .2s;display:inline-flex}.tacs-timestamp-tag:hover{background:#cae0f840}.tacs-learn-sidebar{background:var(--navy);border-left:1px solid #ffffff1f;flex-direction:column;height:calc(100vh - 60px);display:flex;position:sticky;top:60px;overflow:hidden}.tacs-sidebar-header{background:#1b2247;border-bottom:1px solid #ffffff1f;padding:16px}.tacs-sidebar-search{color:#fff;background:#ffffff14;border:1px solid #ffffff26;border-radius:8px;outline:none;width:100%;padding:8px 12px;font-size:13px}.tacs-sidebar-search::placeholder{color:#94a3b8}.tacs-sidebar-content{flex:1;overflow-y:auto}.tacs-section-header{color:#fefefe;cursor:pointer;-webkit-user-select:none;user-select:none;background:#ffffff0a;border-bottom:1px solid #ffffff14;justify-content:space-between;align-items:center;padding:14px 16px;font-size:13.5px;font-weight:700;display:flex}.tacs-section-header:hover{background:#ffffff14}.tacs-lesson-item{cursor:pointer;border-bottom:1px solid #ffffff0d;align-items:center;gap:12px;padding:12px 16px;transition:background .15s;display:flex}.tacs-lesson-item:hover{background:#ffffff12}.tacs-lesson-item.active{border-left:4px solid var(--yellow);background:#cae0f829}.tacs-cert-overlay{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:9999;background:#000000d9;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.tacs-cert-card{border:4px double var(--yellow);text-align:center;color:#fff;background:linear-gradient(135deg,#252e5f 0%,#1b2247 100%);border-radius:20px;width:100%;max-width:680px;padding:40px;position:relative;box-shadow:0 20px 50px #000000b3}.tacs-cert-seal{background:var(--yellow);color:#1b1b18;border-radius:50%;justify-content:center;align-items:center;width:72px;height:72px;margin:0 auto 16px;font-size:32px;display:flex;box-shadow:0 0 20px #fce13866}.tacs-header{border-bottom:1px solid var(--line);background:var(--paper,#fff);z-index:50;width:100%;position:sticky;top:0}.tacs-header-wrap{justify-content:space-between;align-items:center;gap:16px;max-width:1200px;margin:0 auto;padding:12px 20px;display:flex}.tacs-desktop-nav{align-items:center;gap:18px;font-size:14px;font-weight:500;display:flex}.tacs-mobile-toggle{display:none!important}@media (max-width:1023px){.tacs-header-wrap{padding:10px 16px}.tacs-desktop-nav{display:none!important}.tacs-mobile-toggle{display:inline-flex!important}.tacs-desktop-only-btn{display:none!important}}.tacs-drawer-backdrop{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:998;opacity:0;pointer-events:none;background:#1b1b1873;transition:opacity .25s;position:fixed;inset:0}.tacs-drawer-backdrop.open{opacity:1;pointer-events:auto}.tacs-drawer-panel{background:var(--paper,#fefefe);z-index:999;flex-direction:column;width:86%;max-width:350px;transition:transform .3s cubic-bezier(.16,1,.3,1);display:flex;position:fixed;top:0;bottom:0;right:0;overflow-y:auto;transform:translate(100%);box-shadow:-10px 0 30px #00000026}.tacs-drawer-panel.open{transform:translate(0)}