*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;overflow-x:hidden}img{max-width:100%;display:block}button{cursor:pointer;font-family:inherit}@media (width<=480px){.hero h1{font-size:clamp(2rem,8vw,3rem)}.section-title{font-size:clamp(1.5rem,6vw,2rem)}.container{padding:0 20px}.ba{gap:14px}.steps{gap:16px}.btn--lg{white-space:normal;text-align:center;padding:18px 24px;font-size:17px}.proof-grid,.community{grid-template-columns:1fr!important}}.gate{background:var(--paper);justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.gate__card{border:1px solid var(--line);text-align:center;background:#fff;border-radius:22px;width:100%;max-width:420px;padding:40px 36px;box-shadow:0 2px 6px #16221f0d,0 16px 44px #16221f14}.gate__logo{justify-content:center;margin-bottom:28px}.gate__title{font-family:var(--font-display);color:var(--ink-900);margin:0 0 8px;font-size:26px}.gate__sub{color:var(--fg-muted);margin:0 0 24px;font-size:15.5px}.gate__input{width:100%;font-size:17px;font-family:var(--font-sans);text-align:center;letter-spacing:.04em;border:1.5px solid var(--line-strong);border-radius:12px;margin-bottom:16px;padding:15px 16px;box-shadow:inset 0 1px 2px #16221f0a}.gate__input:focus{border-color:var(--green-600);box-shadow:0 0 0 3px var(--focus-ring);outline:none}.gate__error{color:var(--danger);margin:0 0 16px;font-size:14px}.gate__help{color:var(--fg-subtle);margin:18px 0 0;font-size:14px}.course-shell{background:var(--paper);min-height:100vh}.course-top{z-index:40;background:color-mix(in oklch, var(--paper) 88%, transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);align-items:center;gap:16px;height:64px;padding:0 20px;display:flex;position:sticky;top:0}.course-top .logo__word{font-size:19px}.course-top__exit{color:var(--fg-muted);margin-left:auto;font-size:15px;font-weight:600;text-decoration:none}.course-top__exit:hover{color:var(--ink-900)}.course-top__menu{cursor:pointer;background:0 0;border:none;flex-direction:column;gap:4px;padding:8px;display:none}.course-top__menu span{background:var(--ink-700);border-radius:2px;width:22px;height:2px}.course-body{grid-template-columns:320px 1fr;align-items:start;display:grid}.course-nav{border-right:1px solid var(--line);height:calc(100vh - 64px);padding:28px 18px;position:sticky;top:64px;overflow-y:auto}.course-nav__label{font-size:var(--fs-eyebrow);letter-spacing:var(--tracking-eyebrow);text-transform:uppercase;color:var(--accent);margin:0 0 14px;padding-left:12px;font-weight:700}.course-nav__list{margin:0;padding:0;list-style:none}.course-nav__item{text-align:left;cursor:pointer;width:100%;color:var(--fg-muted);font-family:var(--font-sans);background:0 0;border:none;border-radius:10px;align-items:baseline;gap:12px;padding:11px 12px;font-size:15px;line-height:1.35;transition:background .15s,color .15s;display:flex}.course-nav__item:hover:not(:disabled){background:var(--sand);color:var(--ink-900)}.course-nav__item.is-active{background:var(--green-50);color:var(--green-800);font-weight:600}.course-nav__item.is-locked{cursor:default;opacity:.55}.course-nav__num{font-variant-numeric:tabular-nums;color:var(--ink-300);flex:none;font-size:13px;font-weight:700}.course-nav__item.is-active .course-nav__num{color:var(--green-600)}.course-nav__title{flex:1}.course-nav__soon{text-transform:uppercase;letter-spacing:.06em;color:var(--ink-300);flex:none;align-self:center;font-size:11px;font-weight:700}.course-content{padding:clamp(32px,5vw,72px) clamp(20px,5vw,64px)}.lesson{max-width:680px;margin:0 auto}.lesson__head{margin-bottom:48px}.lesson__eyebrow{font-size:var(--fs-eyebrow);letter-spacing:var(--tracking-eyebrow);text-transform:uppercase;color:var(--accent);margin-bottom:14px;font-weight:700;display:block}.lesson__head h1{font-family:var(--font-display);letter-spacing:-.02em;color:var(--ink-900);margin:0 0 20px;font-size:clamp(2rem,1.4rem + 2.6vw,3rem);font-weight:800;line-height:1.08}.lesson__lede{font-size:var(--fs-lead);color:var(--fg-muted);max-width:none;margin:0;line-height:1.5}.lesson__section{margin:0 0 56px}.lesson__section h2{font-family:var(--font-display);letter-spacing:-.01em;color:var(--ink-900);margin:0 0 22px;font-size:clamp(1.4rem,1.1rem + 1.2vw,1.85rem);font-weight:700;line-height:1.2}.lesson p{font-size:var(--fs-body-lg);color:var(--ink-700);max-width:none;margin:0 0 22px;line-height:1.7}.lesson em{color:var(--ink-900);font-style:italic}.lesson strong{color:var(--ink-900);font-weight:700}.lesson__compress{font-family:var(--font-display);border-left:3px solid var(--green-600);padding-left:22px;font-weight:700;color:var(--ink-900)!important;margin:32px 0 0!important;font-size:1.3rem!important;line-height:1.35!important}.lesson__list{margin:0 0 22px;padding:0 0 0 4px;list-style:none}.lesson__list li{font-size:var(--fs-body-lg);color:var(--ink-700);margin-bottom:14px;padding-left:30px;line-height:1.6;position:relative}.lesson__list li:before{content:"";background:var(--green-600);border-radius:999px;width:7px;height:7px;position:absolute;top:13px;left:6px}.fig{margin:32px 0}.fig__frame{border:1px solid var(--line);background:#fff;border-radius:18px;padding:26px 24px;box-shadow:0 1px 2px #16221f0a,0 8px 24px #16221f0d}.fig__cap{color:var(--fg-subtle);text-align:center;margin-top:14px;font-size:14.5px;line-height:1.5}.lesson__foot{background:var(--green-50);border:1px solid var(--green-100);border-radius:18px;margin-top:12px;padding:28px 30px}.lesson__foot-label{font-size:var(--fs-eyebrow);letter-spacing:var(--tracking-eyebrow);text-transform:uppercase;color:var(--green-700);font-weight:700;margin:0 0 14px!important}.lesson__foot ol{margin:0;padding-left:22px}.lesson__foot li{color:var(--ink-900);margin-bottom:10px;font-size:17px;font-weight:500;line-height:1.5}.course-soon{text-align:center;max-width:600px;margin:0 auto;padding-top:40px}.course-soon h1{font-family:var(--font-display);color:var(--ink-900)}.course-soon p{color:var(--fg-muted);margin-bottom:24px;font-size:18px}@media (width<=900px){.course-body{grid-template-columns:1fr}.course-top__menu{display:flex}.course-nav{z-index:45;background:var(--paper);width:300px;height:calc(100vh - 64px);transition:transform .25s;position:fixed;top:64px;bottom:0;left:0;transform:translate(-100%)}.course-nav--open{transform:translate(0);box-shadow:0 12px 40px #16221f2e}}