@import "https://fonts.googleapis.com/css2?family=Geist:wght@400;500;600;700&family=Geist+Mono:wght@400;500&display=swap";
:root{--indigo-50:#eef2ff;--indigo-100:#e0e7ff;--indigo-200:#c7d2fe;--indigo-300:#a5b4fc;--indigo-400:#818cf8;--indigo-500:#6366f1;--indigo-600:#4f46e5;--indigo-700:#4338ca;--indigo-800:#3730a3;--indigo-900:#312e81;--primary:var(--indigo-700);--primary-hover:var(--indigo-800);--primary-soft:var(--indigo-50);--primary-soft-border:var(--indigo-100);--navy-900:#1a1730;--navy-800:#221d3f;--navy-700:#2c2650;--orange-50:#fff7ed;--orange-100:#ffedd5;--orange-400:#fb923c;--orange-500:#f97316;--orange-600:#ea580c;--accent:var(--orange-600);--bg:#f7f8fa;--surface:#fff;--surface-2:#fbfbfd;--ink:#0f172a;--ink-2:#334155;--muted:#64748b;--faint:#94a3b8;--line:#e7e9ee;--line-2:#eef0f4;--success:#16a34a;--success-soft:#f0fdf4;--success-border:#bbf7d0;--warn:#d97706;--warn-soft:#fffbeb;--warn-border:#fde68a;--error:#dc2626;--error-soft:#fef2f2;--error-border:#fecaca;--info:#0ea5e9;--info-soft:#f0f9ff;--r-sm:6px;--r-md:9px;--r-lg:13px;--r-xl:18px;--r-pill:999px;--sh-xs:0 1px 2px #0f172a0d;--sh-sm:0 1px 3px #0f172a12, 0 1px 2px #0f172a0a;--sh-md:0 4px 12px #0f172a12, 0 2px 4px #0f172a0a;--sh-lg:0 12px 32px #0f172a1a, 0 4px 8px #0f172a0d;--sh-xl:0 24px 60px #0f172a29, 0 8px 16px #0f172a0f;--ring:0 0 0 3px #4338ca29;--font:"Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--mono:"Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;--sidebar-w:248px;--topbar-h:60px;--maxw:1180px}*{box-sizing:border-box}html,body{font-family:var(--font);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;font-feature-settings:"cv11", "ss01";margin:0;padding:0}#root,body>div{min-height:100vh}h1,h2,h3,h4,h5{letter-spacing:-.02em;color:var(--ink);margin:0;font-weight:650;line-height:1.15}p{margin:0}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}input,textarea,select{font-family:inherit}::selection{background:var(--indigo-100)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:#d3d8e0 padding-box content-box;border:3px solid #0000;border-radius:99px}::-webkit-scrollbar-thumb:hover{background:#b9c0cc padding-box content-box}::-webkit-scrollbar-track{background:0 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.14s;display:inline-flex}.btn:disabled{opacity:.45;cursor:not-allowed;pointer-events:none}.btn-icon{justify-content:center;width:38px;padding:0}.btn-sm{border-radius:var(--r-sm);height:32px;padding:0 12px;font-size:13px}.btn-sm.btn-icon{width:32px;padding:0}.btn-lg{border-radius:var(--r-lg);height:46px;padding:0 22px;font-size:15px}.btn-block{justify-content:center;width:100%}.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:hover:not(:disabled){background:var(--primary-hover);border-color:var(--primary-hover)}.btn-secondary{background:var(--surface);color:var(--ink);border-color:var(--line);box-shadow:var(--sh-xs)}.btn-secondary:hover:not(:disabled){background:var(--bg);border-color:#d3d8e0}.btn-ghost{color:var(--ink-2);background:0 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var(--line);border-radius:var(--r-md);width:100%;height:38px;color:var(--ink);font-size:14px;font-family:var(--font);outline:none;padding:0 12px;transition:border-color .14s,box-shadow .14s}.input::placeholder,.textarea::placeholder{color:var(--faint)}.input:focus,.textarea:focus,.select:focus{border-color:var(--indigo-400);box-shadow:var(--ring)}.input.is-error,.textarea.is-error{border-color:var(--error)}.textarea{resize:vertical;height:auto;min-height:90px;padding:10px 12px}.select{appearance:none;cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-position:right 10px center;background-repeat:no-repeat;padding-right:32px}.input-group{align-items:stretch;display:flex}.input-group .lead{background:var(--bg);border:1px solid var(--line);border-radius:var(--r-md) 0 0 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.row-click:hover{background:var(--bg)}.modal-scrim{z-index:100;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#0f172a59;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.modal{background:var(--surface);border-radius:var(--r-xl);box-shadow:var(--sh-xl);width:100%;max-height:90vh;animation:.22s scaleIn;overflow-y:auto}.modal-head{border-bottom:1px solid var(--line);justify-content:space-between;align-items:flex-start;gap:16px;padding:22px 24px 18px;display:flex}.modal-body{padding:22px 24px}.modal-foot{border-top:1px solid var(--line);background:var(--bg);justify-content:flex-end;align-items:center;gap:10px;padding:16px 24px;display:flex}.drawer-scrim{z-index:80;background:#0f172a33;position:fixed;inset:0}.drawer{z-index:81;background:var(--surface);width:420px;box-shadow:var(--sh-xl);flex-direction:column;animation:.26s 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solid var(--line);z-index:50;flex-direction:column;display:flex;position:fixed;top:0;bottom:0;left:0;overflow-y:auto}.sb-top{border-bottom:1px solid var(--line-2);flex-shrink:0;padding:18px 16px 14px}.sb-nav{flex-direction:column;flex:1;gap:1px;padding:10px;display:flex;overflow-y:auto}.sb-group-label{letter-spacing:.06em;text-transform:uppercase;color:var(--faint);padding:12px 8px 5px;font-size:11px;font-weight:640}.nav-item{border-radius:var(--r-md);color:var(--ink-2);cursor:pointer;align-items:center;gap:9px;padding:8px 10px;font-size:13.5px;font-weight:520;transition:background .12s,color .12s;display:flex;position:relative}.nav-item:hover{background:var(--bg);color:var(--ink)}.nav-item.active{background:var(--primary-soft);color:var(--primary);font-weight:580}.nb-count{background:var(--error);color:#fff;border-radius:var(--r-pill);text-align:center;min-width:18px;margin-left:auto;padding:1px 6px;font-size:11px;font-weight:680}.sb-foot{border-top:1px solid var(--line-2);flex-shrink:0;padding:12px 10px}.role-switch{background:var(--bg);border:1px solid var(--line);border-radius:var(--r-md);gap:4px;margin-bottom:10px;padding:3px;display:flex}.role-switch button{border-radius:var(--r-sm);color:var(--muted);cursor:pointer;background:0 0;border:none;flex:1;justify-content:center;align-items:center;gap:5px;padding:5px 8px;font-size:12.5px;font-weight:540;transition:all .13s;display:flex}.role-switch button.active{background:var(--surface);color:var(--ink);box-shadow:var(--sh-xs);font-weight:580}.sb-user{border-radius:var(--r-md);cursor:pointer;align-items:center;gap:10px;padding:9px 10px;transition:background .12s;display:flex}.sb-user:hover{background:var(--bg)}.sb-user .nm{color:var(--ink);white-space:nowrap;text-overflow:ellipsis;font-size:13.5px;font-weight:560;overflow:hidden}.sb-user .rl{color:var(--muted);font-size:12px}.sb-menu{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-lg);z-index:60;padding:6px;animation:.18s fadeUp;position:absolute;bottom:calc(100% + 6px);left:0;right:0}.sb-menu button{border-radius:var(--r-sm);width:100%;color:var(--ink-2);cursor:pointer;background:0 0;border:none;align-items:center;gap:9px;padding:8px 10px;font-size:13.5px;font-weight:520;transition:background .1s;display:flex}.sb-menu button:hover{background:var(--bg);color:var(--ink)}.sb-menu button.danger{color:var(--error)}.sb-menu button.danger:hover{background:var(--error-soft)}.main{margin-left:var(--sidebar-w);flex-direction:column;flex:1;min-width:0;display:flex}.topbar{z-index:40;height:var(--topbar-h);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);background:#ffffffe6;align-items:center;gap:12px;padding:0 28px;display:flex;position:sticky;top:0}.crumb{color:var(--muted);align-items:center;gap:8px;font-size:13.5px;display:flex}.crumb 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p{color:var(--muted);margin-top:9px;font-size:14px;line-height:1.6}.cert-show{background:var(--surface-2);border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}.cert-show-in{grid-template-columns:1fr 1fr;align-items:center;gap:60px;max-width:1140px;margin:0 auto;padding:84px 32px;display:grid}@media (max-width:900px){.cert-show-in{grid-template-columns:1fr;gap:40px;padding:56px 24px}}.verify-mini{border:1px solid var(--success-border);color:#15803d;background:#fff;border-radius:999px;align-items:center;gap:9px;margin-top:24px;padding:7px 14px;font-size:13.5px;font-weight:560;display:inline-flex}.tst-grid{grid-template-columns:repeat(3,1fr);gap:20px;margin-top:48px;display:grid}@media (max-width:860px){.tst-grid{grid-template-columns:1fr}}.tst{border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;flex-direction:column;padding:26px;display:flex}.tst .stars{color:var(--orange-500);gap:2px;display:flex}.tst p{color:var(--ink-2);flex:1;margin-top:16px;font-size:15px;line-height:1.6}.tst .who{align-items:center;gap:11px;margin-top:20px;display:flex}.tst .who b{font-size:14px;font-weight:580}.tst .who span{color:var(--muted);font-size:12.5px}.faq-wrap{max-width:780px;margin:44px auto 0}.faq-item{border-bottom:1px solid var(--line)}.faq-q{text-align:left;width:100%;color:var(--ink);cursor:pointer;background:0 0;border:none;justify-content:space-between;align-items:center;gap:16px;padding:20px 4px;font-size:16.5px;font-weight:560;display:flex}.faq-q .vb-icon{color:var(--muted);flex:none;transition:transform .2s}.faq-item.open .faq-q .vb-icon{transform:rotate(180deg)}.faq-a{max-height:0;transition:max-height .28s;overflow:hidden}.faq-item.open .faq-a{max-height:240px}.faq-a p{color:var(--muted);padding:0 4px 22px;font-size:14.5px;line-height:1.65}.cta-band{color:#fff;background:radial-gradient(700px 360px at 88% -30%,#ea580c59,#0000 58%),linear-gradient(150deg,#2c2650,#1a1730 70%);position:relative;overflow:hidden}.cta-band-in{text-align:center;max-width:1140px;margin:0 auto;padding:76px 32px;position:relative}.cta-band h2{color:#fff;letter-spacing:-.03em;font-size:clamp(28px,3.6vw,42px)}.cta-band p{color:#ffffffb8;max-width:520px;margin-top:16px;margin-left:auto;margin-right:auto;font-size:17px;line-height:1.55}.cta-band .row{justify-content:center;gap:12px;margin-top:30px}.mkt-footer{background:var(--navy-900);color:#ffffff9e}.mkt-footer-in{max-width:1140px;margin:0 auto;padding:56px 32px 30px}.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;display:grid}@media (max-width:820px){.footer-grid{grid-template-columns:1fr 1fr;gap:30px}}.mkt-footer h5{color:#fff;letter-spacing:.04em;text-transform:uppercase;margin-bottom:14px;font-size:13px;font-weight:600}.mkt-footer a{color:#ffffff9e;cursor:pointer;padding:5px 0;font-size:14px;transition:color .14s;display:block}.mkt-footer a:hover{color:#fff}.mkt-footer .f-brand .wm{color:#fff;letter-spacing:-.02em;align-items:center;gap:9px;font-size:17px;font-weight:680;display:flex}.mkt-footer .f-brand p{max-width:260px;margin-top:14px;font-size:13.5px;line-height:1.6}.footer-bottom{border-top:1px solid #ffffff1a;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-top:40px;padding-top:24px;font-size:13px;display:flex}.pd-hero{background:var(--surface-2);border-bottom:1px solid var(--line-2)}.pd-hero-in{grid-template-columns:1.4fr 1fr;align-items:start;gap:48px;max-width:1140px;margin:0 auto;padding:56px 32px;display:grid}@media (max-width:900px){.pd-hero-in{grid-template-columns:1fr;gap:32px}}.pd-buy{border:1px solid var(--line);border-radius:var(--r-xl);box-shadow:var(--sh-md);background:#fff;padding:26px;position:sticky;top:90px}.syllabus-week{border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;margin-bottom:14px;overflow:hidden}.syllabus-week .sw-head{background:var(--surface-2);border-bottom:1px solid var(--line-2);align-items:center;gap:14px;padding:18px 20px;display:flex}.syllabus-week .sw-n{background:var(--primary-soft);width:38px;height:38px;color:var(--primary);border-radius:10px;flex:none;justify-content:center;align-items:center;font-size:14px;font-weight:660;display:flex}.syllabus-week .sw-lessons{padding:8px 20px 14px}.syllabus-week .sw-li{color:var(--ink-2);border-bottom:1px solid var(--line-2);align-items:center;gap:11px;padding:9px 0;font-size:14px;display:flex}.syllabus-week .sw-li:last-child{border-bottom:none}.proj-cat-grid{grid-template-columns:repeat(2,1fr);gap:18px;display:grid}@media (max-width:760px){.proj-cat-grid{grid-template-columns:1fr}}.proj-cat-card{border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;padding:22px;transition:box-shadow .18s,border-color .18s,transform .18s}.proj-cat-card:hover{box-shadow:var(--sh-md);border-color:#dfe3ea;transform:translateY(-2px)}