:root{--ink:#030027;--ink-2:#302e4e;--ink-3:#636179;--line:#ece8e1;--line-2:#ddd6ca;--paper:#fbfaf7;--card:#fff;--wash:#eef2f5;--hl:#ff950d;--hl-soft:#ffe1bb;--hl-ink:#995908;--hl-strong:#cc770a;--hl-wash:#fff4e7;--hl-dot:#ffd59e;--ok:#2d7a55;--ok-soft:#e3f1e9;--warn:#8a5a00;--warn-soft:#fdf3d8;--err:#b4432b;--err-soft:#fbe9e4;--info-soft:#e6eef6;--display:"Plus Jakarta Sans", "Segoe UI", system-ui, sans-serif;--body:"Plus Jakarta Sans", "Segoe UI", system-ui, sans-serif;--r-sm:6px;--r:10px;--r-lg:16px;--focus:0 0 0 3px var(--hl), 0 0 0 5px var(--ink);--step--1:.875rem;--step-0:1rem;--step-1:1.25rem;--step-2:1.563rem;--step-3:1.953rem;--step-4:2.6rem}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--paper);color:var(--ink);font-family:var(--body);font-size:var(--step-0);flex-direction:column;min-height:100vh;margin:0;line-height:1.55;display:flex}#root{display:contents}h1,h2,h3{font-family:var(--display);letter-spacing:-.01em;margin:0 0 .5em;line-height:1.15}h1{font-size:var(--step-3);font-weight:800}h2{font-size:var(--step-1);font-weight:700}h3{font-size:var(--step-0);font-weight:700}p{margin:0 0 .8em}a{color:var(--ink);text-underline-offset:3px;text-decoration-thickness:1px}a:hover{-webkit-text-decoration-color:var(--hl);text-decoration-color:var(--hl);text-decoration-thickness:3px}code{background:var(--wash);border-radius:4px;padding:.1em .35em;font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;font-size:.9em}img{max-width:100%}:focus-visible{box-shadow:var(--focus);border-radius:4px;outline:none}::selection{background:var(--hl-soft)}.wrap{width:100%;max-width:1140px;margin:0 auto;padding:0 20px}.main{flex:1;padding-top:32px;padding-bottom:64px}.muted{color:var(--ink-3)}.small{font-size:var(--step--1)}.lede{font-size:var(--step-1);color:var(--ink-2);max-width:62ch;line-height:1.45}.pre{white-space:pre-wrap}.nowrap{white-space:nowrap}.cap{text-transform:capitalize}.ok-text{color:var(--ok);font-weight:700}.warn-text{color:var(--warn)}.danger-text{color:var(--err)!important}.sr-only{clip:rect(0 0 0 0);width:1px;height:1px;position:absolute;overflow:hidden}.skip{background:var(--hl);z-index:100;padding:8px 12px;position:absolute;top:8px;left:-999px}.skip:focus{left:8px}.stack{flex-direction:column;gap:20px;display:flex}.row-gap{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.row-between{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;display:flex}.row-end{flex-wrap:wrap;justify-content:flex-end;gap:10px;margin-top:16px;display:flex}.grid-2{grid-template-columns:1fr 1fr;gap:0 16px;display:grid}.grid-3{grid-template-columns:repeat(3,1fr);gap:0 16px;display:grid}.two-col{grid-template-columns:1fr 1fr;align-items:start;gap:24px;display:grid}.topbar{background:var(--ink);color:#fff;z-index:20;position:sticky;top:0}.topbar-inner{align-items:center;gap:16px;min-height:60px;display:flex}.brand{font-family:var(--display);color:#fff;align-items:center;gap:10px;font-size:1.35rem;font-weight:800;text-decoration:none;display:flex}.brand:hover{text-decoration:none}.brand-mark{background:var(--hl);border-radius:4px 9px 6px 3px;width:26px;height:8px;display:inline-block;transform:rotate(-4deg)}.mainnav{align-items:center;gap:4px;margin-left:auto;display:flex}.mainnav a{color:#dce5ee;border-radius:var(--r-sm);padding:8px 10px;font-size:.95rem;text-decoration:none}.mainnav a:hover{color:#fff;background:#ffffff14}.mainnav a.active{color:#fff;box-shadow:inset 0 -3px 0 var(--hl);border-radius:0}.mainnav .nav-cta{background:var(--hl);color:var(--ink);border-radius:var(--r-sm);margin-left:6px;font-weight:700}.mainnav 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0;border:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:1rem;text-decoration:none;display:inline-flex}.icon-btn:hover:not(:disabled){background:var(--wash)}.topbar .icon-btn:hover{background:#ffffff1a}.icon-btn:disabled{opacity:.35;cursor:default}.link-btn{color:var(--ink);text-underline-offset:3px;cursor:pointer;font:inherit;background:0 0;border:0;padding:0;text-decoration:underline}.link-btn:disabled{opacity:.5;cursor:default}.bell{position:relative}.bell-btn{color:#fff;position:relative}.bell-count{background:var(--hl);color:var(--ink);border-radius:9px;justify-content:center;align-items:center;min-width:18px;height:18px;padding:0 4px;font-size:11px;font-weight:700;display:flex;position:absolute;top:1px;right:0}.bell-panel{background:var(--card);width:min(360px,100vw - 24px);color:var(--ink);border:1px solid var(--line);border-radius:var(--r);position:absolute;top:44px;right:0;overflow:hidden;box-shadow:0 12px 32px #17324d2e}.bell-head{border-bottom:1px solid var(--line);justify-content:space-between;padding:12px 14px;display:flex}.bell-empty{margin:0;padding:16px 14px}.bell-item{text-align:left;border:0;border-bottom:1px solid var(--line);cursor:pointer;width:100%;font:inherit;color:inherit;background:0 0;gap:2px;padding:10px 14px 10px 18px;display:grid;position:relative}.bell-item:hover{background:var(--wash)}.bell-item.unread:before{content:"";background:var(--hl);width:6px;height:6px;box-shadow:0 0 0 1px var(--ink);border-radius:50%;position:absolute;top:16px;left:7px}.bell-title{font-weight:700}.bell-body{color:var(--ink-2);font-size:var(--step--1)}.bell-time{color:var(--ink-3);font-size:12px}.bell-all{text-align:center;font-size:var(--step--1);padding:10px 14px;display:block}.banner{background:var(--hl-soft);border-bottom:1px solid #ecd98a}.banner-inner{font-size:var(--step--1);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding-top:10px;padding-bottom:10px;display:flex}.footer{border-top:1px solid var(--line);color:var(--ink-3);font-size:var(--step--1);padding:20px 0}.btn{font:inherit;border-radius:var(--r-sm);cursor:pointer;white-space:nowrap;border:1px solid #0000;justify-content:center;align-items:center;gap:8px;padding:10px 18px;font-weight:700;line-height:1.2;text-decoration:none;display:inline-flex}.btn:hover{text-decoration:none}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--ink);color:#fff}.btn-primary:hover:not(:disabled){background:#0f2539}.btn-secondary{background:var(--card);color:var(--ink);border-color:var(--line-2)}.btn-secondary:hover:not(:disabled){border-color:var(--ink)}.btn-ghost{color:var(--ink);background:0 0}.btn-ghost:hover:not(:disabled){background:var(--wash)}.btn-danger{background:var(--err);color:#fff}.btn-danger:hover:not(:disabled){background:#963520}.btn-sm{font-size:var(--step--1);padding:6px 12px}.btn-lg{padding:14px 26px;font-size:1.05rem}.btn-block{width:100%}label.btn{cursor:pointer}.spinner{border:2px solid;border-right-color:#0000;border-radius:50%;width:14px;height:14px;animation:.7s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.field{flex-direction:column;gap:6px;margin-bottom:16px;display:flex}.field label,.label-like{font-size:.95rem;font-weight:700}.field input,.field textarea,.field select,.toolbar input,.toolbar select,.filter select,.q-edit-head select,.table select,.date-filter input{font:inherit;color:var(--ink);background:var(--card);border:1px solid var(--line-2);border-radius:var(--r-sm);width:100%;padding:10px 12px}.field textarea{resize:vertical;line-height:1.5}.field input:disabled,.field textarea:disabled,.field select:disabled{background:var(--wash);color:var(--ink-3)}.field input:focus,.field textarea:focus,.field select:focus,.toolbar input:focus,.toolbar select:focus,.opt-text:focus,.section-title:focus{border-color:var(--ink);box-shadow:0 0 0 3px var(--hl-soft);outline:none}.hint{color:var(--ink-3);font-size:var(--step--1)}.field-error{color:var(--err);font-size:var(--step--1)}.check{cursor:pointer;align-items:center;gap:8px;display:flex}.check input,.option input,.opt-row input[type=radio],.opt-row input[type=checkbox]{width:18px;height:18px;accent-color:var(--ink);flex:none}fieldset.plain{border:0;min-width:0;margin:0;padding:0}.code-input{letter-spacing:.4em;text-align:center;font-family:ui-monospace,Menlo,monospace!important;font-size:1.6rem!important}.alert{border-radius:var(--r-sm);border-left:4px solid;margin-bottom:16px;padding:12px 14px}.alert>div>p:last-child{margin-bottom:0}.alert strong{margin-bottom:2px;display:block}.alert-info{background:var(--info-soft);border-color:var(--ink-2)}.alert-ok{background:var(--ok-soft);border-color:var(--ok)}.alert-warn{background:var(--warn-soft);border-color:#c98f00}.alert-error{background:var(--err-soft);border-color:var(--err)}.stack>.alert{margin-bottom:0}.loading{color:var(--ink-3);align-items:center;gap:10px;padding:32px 0;display:flex}.empty{text-align:center;border:1px dashed var(--line-2);border-radius:var(--r);background:var(--card);padding:56px 20px}.empty h3{font-size:var(--step-1)}.empty p{color:var(--ink-2);max-width:46ch;margin-left:auto;margin-right:auto}.progress{align-items:center;gap:10px;display:flex}.progress-track{background:var(--wash);border-radius:6px;flex:1;height:10px;overflow:hidden}.progress-ink{background:var(--hl);background-image:linear-gradient(#ffffff59,#0000 40%,#0000000f);border-radius:2px 8px 3px 6px;min-width:0;height:100%;transition:width .6s cubic-bezier(.2,.8,.2,1)}.progress-num{font-weight:700;font-size:var(--step--1);text-align:right;min-width:3ch}.badge{white-space:nowrap;vertical-align:middle;border:1px solid;border-radius:999px;margin-right:6px;padding:2px 8px;font-size:12px;font-weight:700;display:inline-block}.badge-draft,.badge-superseded{color:var(--ink-2);border-color:var(--line-2);background:var(--card)}.badge-in_review,.badge-pending{color:#6b4b00;background:var(--hl-soft);border-color:#e3c25c}.badge-rejected,.badge-declined{color:var(--err);background:var(--err-soft);border-color:#e7b2a5}.badge-approved{color:var(--ok);background:var(--ok-soft);border-color:#a9d2bc}.badge-published{color:#fff;border-color:var(--ok);background:var(--ok)}.badge-unpublished{color:var(--ink-2);border-color:var(--ink-3);background:var(--wash)}.badge-archived{color:var(--ink-3);border-color:var(--line-2);background:var(--wash);text-decoration:line-through}.toasts{z-index:200;flex-direction:column;gap:8px;width:min(460px,100vw - 32px);display:flex;position:fixed;bottom:20px;left:50%;transform:translate(-50%)}.toast{border-radius:var(--r-sm);color:#fff;background:var(--ink);padding:12px 16px;animation:.2s ease-out rise;box-shadow:0 8px 24px #0003}.toast-ok{border-left:5px solid var(--hl)}.toast-error{background:var(--err)}@keyframes rise{0%{opacity:0;transform:translateY(8px)}}.modal{border-radius:var(--r);width:min(520px,100vw - 24px);max-height:calc(100vh - 40px);color:var(--ink);border:0;padding:0;box-shadow:0 24px 60px #17324d4d}.modal-wide{width:min(860px,100vw - 24px)}.modal::backdrop{background:#17324d73}.modal-head{border-bottom:1px solid var(--line);background:var(--card);justify-content:space-between;align-items:center;padding:16px 20px;display:flex;position:sticky;top:0}.modal-head h2{margin:0}.modal-body{padding:20px}.pager{justify-content:center;align-items:center;gap:16px;margin-top:24px;display:flex}.tabs{border-bottom:1px solid var(--line);gap:4px;margin-bottom:20px;display:flex;overflow-x:auto}.tab{font:inherit;color:var(--ink-3);cursor:pointer;white-space:nowrap;background:0 0;border:0;border-bottom:3px solid #0000;margin-bottom:-1px;padding:10px 14px;font-weight:700}.tab:hover{color:var(--ink)}.tab.active{color:var(--ink);border-bottom-color:var(--hl)}.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px}.panel.narrow{max-width:640px}.page-head{margin-bottom:24px}.page-head h1{margin-bottom:4px}.subnav{border-bottom:1px solid var(--line);flex-wrap:wrap;gap:4px;margin:-12px 0 24px;padding-bottom:12px;display:flex}.subnav a{border-radius:var(--r-sm);font-size:var(--step--1);color:var(--ink-2);padding:6px 10px;text-decoration:none}.subnav a:hover{background:var(--wash);color:var(--ink)}.hero{max-width:760px;padding:24px 0 28px}.hero-actions{flex-wrap:wrap;gap:10px;margin:4px 0 20px;display:flex}.eyebrow{font-size:var(--step--1);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);margin:0 0 10px;font-weight:700}.hero h1{letter-spacing:-.025em;margin-bottom:16px;font-size:clamp(2.1rem,5.4vw,3.6rem);line-height:1.02}.search{gap:8px;max-width:620px;margin-top:22px;display:flex}.search input{font:inherit;border:2px solid var(--ink);border-radius:var(--r-sm);background:var(--card);color:var(--ink);flex:1;min-width:0;padding:13px 16px;font-size:1.05rem}.search input:focus{box-shadow:0 0 0 4px var(--hl-soft);outline:none}.filters{border-top:1px solid var(--line);border-bottom:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:16px;margin-bottom:24px;padding:14px 0;display:flex}.filter{font-weight:700;font-size:var(--step--1);align-items:center;gap:8px;display:flex}.filter select{width:auto;padding:7px 10px}.chips{flex-wrap:wrap;gap:6px;display:flex}.chip{font:inherit;font-size:var(--step--1);border:1px solid var(--line-2);background:var(--card);color:var(--ink);cursor:pointer;border-radius:999px;padding:6px 12px}.chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}.count{font-size:var(--step--1);margin-left:auto}.grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:22px;display:grid}.course-card{color:inherit;background:var(--card);border:1px solid var(--line);border-radius:var(--r);flex-direction:column;text-decoration:none;display:flex;overflow:hidden}.course-card:hover{border-color:var(--ink);text-decoration:none}.course-card:hover h3{text-decoration:underline;-webkit-text-decoration-color:var(--hl);text-decoration-color:var(--hl);text-underline-offset:3px;text-decoration-thickness:3px}.course-card-body{flex-direction:column;flex:1;padding:14px 16px 16px;display:flex}.course-card h3{margin:4px 0 6px;font-size:1.1rem}.course-cat{font-size:var(--step--1);color:var(--ink-2);font-weight:700;text-decoration:none}.clamp2{-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:.95rem;display:-webkit-box;overflow:hidden}.course-foot{font-size:var(--step--1);color:var(--ink-2);justify-content:space-between;margin-top:auto;padding-top:10px;display:flex}.lvl{border:1px solid var(--line-2);border-radius:4px;padding:0 6px}.thumb{aspect-ratio:16/9;object-fit:cover;background:var(--wash);width:100%;display:block}.thumb-gen{background:hsl(var(--h) 32% 92%);background-image:repeating-linear-gradient(180deg, transparent 0 22px, hsl(var(--h) 25% 82%) 22px 23px);align-items:flex-end;padding:14px 16px;display:flex;position:relative}.thumb-gen span{font-family:var(--display);color:hsl(var(--h) 45% 24%);background:linear-gradient(transparent 55%, var(--hl) 55% 88%, transparent 88%);padding:0 4px;font-size:2.4rem;font-weight:800;line-height:1}.detail-head{border-bottom:1px solid var(--line);grid-template-columns:1fr;align-items:start;gap:36px;margin-bottom:28px;padding-bottom:28px;display:grid}.detail-head h1{margin:6px 0 12px;font-size:clamp(1.9rem,4vw,2.8rem)}.detail-thumb .thumb{border-radius:var(--r);border:1px solid var(--line)}.facts{color:var(--ink-2);flex-wrap:wrap;gap:6px 18px;margin:0 0 20px;padding:0;list-style:none;display:flex}.facts li+li:before{content:"";background:var(--ink-3);border-radius:50%;width:4px;height:4px;margin:0 14px 3px -10px;display:inline-block}.detail-cta{flex-wrap:wrap;gap:10px;margin-bottom:14px;display:flex}.detail-cols{grid-template-columns:1fr 320px;align-items:start;gap:40px;display:grid}.block{margin-bottom:36px}.learn-list{grid-template-columns:1fr 1fr;gap:10px 24px;margin:0;padding:0;list-style:none;display:grid}.learn-list li{padding-left:26px;position:relative}.learn-list li:before{content:"";background:var(--hl);border-radius:2px 6px 3px 4px;width:16px;height:7px;position:absolute;top:.55em;left:0;transform:rotate(-3deg)}.outline{border:1px solid var(--line);border-radius:var(--r);background:var(--card);margin:0;padding:0;list-style:none;overflow:hidden}.outline>li{border-bottom:1px solid var(--line)}.outline>li:last-child{border-bottom:0}.outline h3{background:var(--wash);margin:0;padding:10px 16px;font-size:.95rem}.outline ul{margin:0;padding:0;list-style:none}.outline-item{border-top:1px solid var(--line);align-items:center;gap:12px;padding:10px 16px;display:flex}.outline ul .outline-item:first-child{border-top:0}.outline-title{flex:1;min-width:0}.kind{text-align:center;border:1px solid var(--line-2);min-width:58px;color:var(--ink-2);border-radius:4px;flex:none;padding:2px 7px;font-size:11px;font-weight:700}.kind-video{background:#e8eef6}.kind-quiz{background:var(--hl-soft);color:#6b4b00;border-color:#e3c25c}.kind-file{background:#eef1ea}.prose{max-width:68ch;font-size:1.05rem;line-height:1.7}.prose p{white-space:pre-wrap}.teacher-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px;position:sticky;top:80px}.teacher-top{align-items:center;gap:14px;margin-bottom:12px;display:flex}.auth-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);max-width:420px;margin:16px auto;padding:32px}.auth-card-wide{max-width:560px}.auth-foot{text-align:center;color:var(--ink-2);margin:20px 0 0}.or{color:var(--ink-3);font-size:var(--step--1);align-items:center;gap:12px;margin:20px 0;display:flex}.or:before,.or:after{content:"";background:var(--line);flex:1;height:1px}.google-btn{justify-content:center;min-height:44px;display:flex}.choice{border:0;grid-template-columns:1fr 1fr;gap:10px;margin:0 0 20px;padding:0;display:grid}.choice legend{margin-bottom:8px;font-weight:700}.choice-opt{border:1px solid var(--line-2);border-radius:var(--r-sm);cursor:pointer;align-items:flex-start;gap:10px;padding:12px;display:flex}.choice-opt.on{border-color:var(--ink);box-shadow:inset 0 -4px 0 var(--hl)}.choice-opt input{accent-color:var(--ink);margin-top:4px}.choice-opt small{color:var(--ink-3);display:block}.subform{border-left:3px solid var(--hl);margin:4px 0 20px;padding-left:16px}.resume-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);grid-template-columns:1fr;align-items:center;gap:24px;margin-bottom:36px;padding:18px;display:grid}.resume-card .thumb{border-radius:var(--r)}.resume-body{flex-direction:column;align-items:flex-start;gap:10px;display:flex}.resume-body h2{font-size:var(--step-2);margin:0}.resume-body .progress{width:100%;max-width:420px}.my-list{flex-direction:column;gap:10px;margin:0;padding:0;list-style:none;display:flex}.my-row{background:var(--card);border:1px solid var(--line);border-radius:var(--r);grid-template-columns:1fr auto;align-items:center;gap:16px;padding:10px;display:grid}.my-row .thumb{border-radius:var(--r-sm)}.my-main{flex-direction:column;gap:4px;min-width:0;display:flex}.player{background:var(--paper);flex-direction:column;min-height:100vh;display:flex}.player-loading{padding:40px}.player-bar{z-index:10;background:var(--ink);color:#fff;align-items:center;gap:14px;padding:10px 16px;display:flex;position:sticky;top:0}.player-bar .icon-btn{color:#fff}.player-bar .icon-btn:hover{background:#ffffff1a}.player-title{flex:1;align-items:center;gap:20px;min-width:0;display:flex}.player-title strong{white-space:nowrap;text-overflow:ellipsis;font-family:var(--display);overflow:hidden}.player-title .progress{flex:none;width:220px}.player-title .progress-track{background:#ffffff2e}.player-toggle{display:none}.player-body{flex:1;grid-template-columns:320px 1fr;display:grid}.player-side{border-right:1px solid var(--line);background:var(--card);max-height:calc(100vh - 56px);padding:12px 0 40px;position:sticky;top:56px;overflow-y:auto}.player-side h3{font-size:var(--step--1);color:var(--ink-3);margin:0;padding:14px 18px 6px}.player-side ul{margin:0;padding:0;list-style:none}.side-item{text-align:left;cursor:pointer;width:100%;font:inherit;color:var(--ink);background:0 0;border:0;border-left:4px solid #0000;gap:10px;padding:9px 18px;display:flex}.side-item:hover{background:var(--wash)}.side-item.current{background:var(--hl-soft);border-left-color:var(--hl)}.side-check{border:2px solid var(--line-2);border-radius:50%;flex:none;justify-content:center;align-items:center;width:20px;height:20px;margin-top:2px;font-size:11px;font-weight:700;display:flex}.side-item.done .side-check{background:var(--ok);border-color:var(--ok);color:#fff}.side-text{flex-direction:column;min-width:0;display:flex}.side-text small{color:var(--ink-3)}.player-main{width:100%;max-width:920px;padding:28px clamp(16px,4vw,48px) 60px}.item-head 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li.ok{color:var(--ok)}.pw-rules li.ok .pw-mark{background:var(--ok);border-color:var(--ok);color:#fff}.pw-rules li.missing{color:var(--err)}.pw-rules li.missing .pw-mark{border-color:var(--err);color:var(--err)}.pw-confirm{margin:12px 0 0}.signup-choices{flex-direction:column;gap:10px;margin-bottom:6px;display:flex}.btn-google{color:#1f1f1f;background:#fff;border:1px solid #c9d2db;gap:10px}.btn-google:hover:not(:disabled){border-color:var(--ink)}.btn-google svg{width:18px;height:18px}.google-unavailable{font-size:var(--step--1);color:var(--ink-3);text-align:center;margin:0}.btn{border-radius:999px}.topbar-light{box-shadow:none;border-bottom:1px solid var(--line)}.topbar-light .topbar-inner{gap:28px;min-height:76px}.topbar-light .mainnav{flex:1;gap:6px;margin-left:8px}.topbar-light .mainnav a{color:var(--ink-3);font-size:.95rem;font-weight:600}.topbar-light .mainnav a:hover{color:var(--ink);background:0 0}.topbar-light .mainnav a.active{color:var(--ink);box-shadow:none}.topbar-light .nav-cta-ghost{margin-left:auto;color:var(--ink)!important;font-weight:700!important}.topbar-light .nav-cta-ghost.active{box-shadow:none}.topbar-light .mainnav .nav-cta{border-radius:999px;padding:11px 20px;font-weight:800}.topbar-light .nav-user{margin-left:auto}@media (width<=760px){.topbar-light .mainnav,.topbar-light .nav-cta-ghost,.topbar-light .nav-user{margin-left:0}}.hero-band{background:var(--hl-wash);border-bottom:1px solid var(--line);margin:-32px calc(50% - 50vw) 40px;padding:88px 20px 72px;position:relative;overflow:hidden}.hero-dots{background-image:radial-gradient(var(--hl-dot) 1.3px, transparent 1.4px);background-size:24px 24px;position:absolute;inset:0;-webkit-mask-image:radial-gradient(60% 70% at 50% 45%,#0000 35%,#000 85%);mask-image:radial-gradient(60% 70% at 50% 45%,#0000 35%,#000 85%)}.hero-leaf{color:var(--hl);opacity:.14;position:absolute}.hero-leaf-a{width:260px;height:260px;bottom:-80px;left:-70px;transform:rotate(-12deg)}.hero-leaf-b{width:200px;height:200px;top:-50px;right:-40px;transform:rotate(18deg)}.hero-inner{text-align:center;flex-direction:column;align-items:center;gap:22px;max-width:900px;margin:0 auto;display:flex;position:relative}.hero-inner h1{letter-spacing:-.035em;color:var(--ink);margin:0;font-size:clamp(2.3rem,6vw,4.4rem);font-weight:800;line-height:1.03}.hl-text{color:var(--hl-strong)}.hero-lede{color:var(--ink-3);max-width:620px;margin:0;font-size:1.2rem;line-height:1.6}.hero-badge{background:var(--card);border:1px solid var(--line-2);color:var(--hl-ink);border-radius:999px;align-items:center;gap:8px;padding:7px 14px 7px 10px;font-size:.9rem;font-weight:700;display:inline-flex}.hero-badge-leaf{width:18px;height:18px;color:var(--hl)}.hero-inner .hero-actions{justify-content:center;margin:0}.search-pill{background:var(--card);border:1px solid var(--line-2);width:min(620px,100%);color:var(--ink-3);border-radius:999px;align-items:center;gap:8px;padding:8px 8px 8px 22px;display:flex;box-shadow:0 12px 32px #0300270f}.search-pill:focus-within{box-shadow:0 0 0 4px var(--hl-soft), 0 12px 32px #0300270f}.search-pill input{min-width:0;font:inherit;color:var(--ink);background:0 0;border:0;outline:none;flex:1;padding:12px 0;font-size:1rem}.search-pill button{background:var(--ink);color:#fff;font:inherit;cursor:pointer;border:0;border-radius:999px;padding:13px 24px;font-weight:700}.hero-ticks{color:var(--ink-3);flex-wrap:wrap;justify-content:center;gap:10px 28px;margin:0;padding:0;font-size:.95rem;list-style:none;display:flex}.hero-ticks li{align-items:center;gap:8px;display:flex}.hero-ticks li:before{content:"";border-left:2.4px solid var(--hl-ink);border-bottom:2.4px solid var(--hl-ink);width:12px;height:6px;transform:rotate(-45deg)translateY(-2px)}.courses-head{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:22px;display:flex}.courses-head h2{letter-spacing:-.01em;margin:0;font-size:1.75rem;font-weight:800}.courses-head .small{margin:4px 0 0}.courses-filters{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.chip{border-color:var(--line-2);padding:9px 18px;font-weight:600}.chip.on{font-weight:700}.level-select select{background:var(--card);width:auto;font-weight:600;font-size:var(--step--1);border-radius:999px;padding:9px 14px}.grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px}.course-card{border-color:var(--line);border-radius:20px;transition:box-shadow .2s,transform .2s}.course-card:hover{border-color:var(--line);transform:translateY(-2px);box-shadow:0 18px 40px #0300271a}.course-card:hover h3{text-decoration:none}.course-card-body{gap:6px;padding:18px 20px 20px}.course-card h3{margin:0;font-size:1.05rem;font-weight:800;line-height:1.35}.course-cat{letter-spacing:.08em;text-transform:uppercase;color:var(--hl-ink);font-size:.75rem;font-weight:700}.course-meta{color:var(--ink-3);margin:4px 0 0;font-size:.9rem}.course-teacher{color:var(--ink-3);margin:auto 0 0;padding-top:10px;font-size:.85rem}.thumb-gen{background-image:none;padding:0;position:relative;overflow:hidden}.thumb-leaf{aspect-ratio:1;width:48%;height:auto;position:absolute;bottom:-30%;right:-9%}.cover-accent{background:var(--hl);color:var(--ink)}.cover-ink{background:var(--ink);color:var(--hl)}.cover-tint{background:var(--hl-soft);color:var(--hl)}.cover-ink2{background:var(--ink-2);color:var(--hl)}.footer{background:var(--card)}.nav-auth{align-items:center;gap:6px;margin-left:12px;display:flex}.nav-auth a{white-space:nowrap;text-decoration:none}.nav-signin{color:#dce5ee;border-radius:999px;padding:9px 12px;font-size:.95rem;font-weight:600}.nav-signin:hover{color:#fff;background:#ffffff14}.nav-join{background:var(--hl);color:var(--ink);border-radius:999px;padding:10px 20px;font-size:.95rem;font-weight:800}.nav-join:hover{filter:brightness(1.06);color:var(--ink)}.topbar-light .nav-auth{margin-left:auto}.topbar-light .nav-signin{color:var(--ink)}.topbar-light .nav-signin:hover{color:var(--ink);background:var(--wash)}.nav-auth a.active{box-shadow:none}@media (width<=760px){.nav-auth{gap:2px;margin-left:auto}.nav-signin{padding:8px 10px;font-size:.9rem}.nav-join{padding:8px 14px;font-size:.9rem}.nav-auth~.menu-btn{margin-left:4px}}.btn-accent{background:var(--hl);color:var(--ink);border:1px solid var(--hl);font-weight:800}.btn-accent:hover{filter:brightness(1.05);color:var(--ink);text-decoration:none}.hero-join{flex-direction:column;align-items:center;gap:12px;display:flex}.hero-signin{color:var(--ink-3);margin:0;font-size:.95rem}.hero-signin a{color:var(--ink);font-weight:700}.hero-badge-dot{background:var(--hl);border-radius:50%;width:8px;height:8px}@media (width<=560px){.hero-join .hero-actions{flex-direction:column;align-self:stretch}.hero-join .btn{width:100%}}.landing-card{min-width:0}.slug-input span{text-overflow:ellipsis;flex:none;max-width:55%;overflow:hidden}@media (width<=760px){.topbar-inner{gap:8px}.topbar-inner .nav-auth{order:2;margin-left:auto}.topbar-inner .bell{order:3}.topbar-inner .menu-btn{order:4;margin-left:0}.topbar-inner .bell:first-of-type{margin-left:auto}.brand{min-width:0;font-size:1.15rem}.brand-name{max-width:9ch}.brand-logo,.topbar-light .brand-logo{height:34px}}.course-price{color:var(--ink);margin:6px 0 0;font-size:.95rem;font-weight:700}.course-price.is-free{color:var(--hl-strong)}.buy{flex-direction:column;align-items:flex-start;gap:8px;display:flex}.detail-price{color:var(--ink);letter-spacing:-.01em;margin:0;font-size:1.75rem;font-weight:800}.buy-note{max-width:34ch;margin:0}.pay-result{text-align:center;max-width:560px;margin:48px auto}.pay-result h1{margin-bottom:8px}.pay-result .row-gap{justify-content:center;margin-top:20px}.totals{flex-wrap:wrap;gap:12px;margin:0 0 16px;display:flex}.totals .stat{border:1px solid var(--line,#e5e5e5);background:#fff;border-radius:10px;padding:12px 16px}.totals .stat strong{font-size:1.3rem;display:block}.key-hint{word-break:break-all;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.85rem}.kv{grid-template-columns:max-content 1fr;gap:6px 16px;margin:12px 0 16px;display:grid}.kv dt{color:var(--ink-3);font-size:.9rem}.kv dd{margin:0}#payments{scroll-margin-top:80px}.field-value{flex-direction:column;gap:4px;margin:0;padding-top:8px;display:flex}.price-panel form{align-items:flex-end}.price-panel .field{min-width:200px;margin-bottom:0}.webhook-field{margin-top:20px}.referral-panel{margin-top:24px}.referral-share{grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:16px;margin:12px 0 20px;display:grid}@media (width<=720px){.referral-share{grid-template-columns:minmax(0,1fr)}}.referral-row{flex-wrap:wrap;align-items:center;gap:10px;margin-top:6px;display:flex}.referral-code{letter-spacing:.12em;background:var(--hl-wash,#f7f3e8);border-radius:8px;padding:4px 10px;font-size:1.25rem;font-weight:700}.referral-row .key-hint{background:var(--wash,#f4f4f4);border-radius:6px;flex:220px;min-width:0;padding:6px 8px}.referral-count{margin:0 0 10px;font-size:1rem}.referrer-row td{vertical-align:top}.referees-table{margin-top:8px}@media (width<=600px){.referral-panel .hide-sm{display:none}.referral-panel .table td,.referral-panel .table th{padding-left:8px;padding-right:8px}}.referral-field{width:100%;max-width:280px;margin:0}.referral-field input{text-transform:uppercase;letter-spacing:.06em}.referral-totals{margin:0 0 14px}.course-referrals{margin:0 0 18px}.course-referrals h3{flex-wrap:wrap;align-items:center;gap:10px;margin:0 0 8px;font-size:1rem;display:flex}.referees-table{padding:4px 0}