.course-detail-shell{--cd-ink: #0f172a;--cd-muted: #64748b;--cd-line: #e2e8f0;--cd-soft: #f8fafc;--cd-surface: #ffffff;--cd-accent: #0e7490;--cd-accent-soft: #ecfeff;--cd-accent-deep: #155e75;--cd-hero: #f0f7fa;--cd-hero-ink: #0f172a;--cd-hero-muted: #475569;--cd-radius: 14px;--cd-shadow: 0 1px 2px rgb(15 23 42 / .04), 0 8px 24px rgb(15 23 42 / .06);--cd-header-offset: 4.5rem;--cd-touch: 44px;--cd-bp-mobile: 600px;--cd-bp-desktop: 900px;--cd-pad: 1rem;color:var(--cd-ink);background:var(--cd-soft);width:100vw;max-width:100vw;margin-left:calc(50% - 50vw);margin-right:calc(50% - 50vw);margin-top:-2rem;margin-bottom:-3rem;padding-bottom:5.5rem}@media (min-width: 600px){.course-detail-shell{margin-top:-3rem;padding-bottom:3rem;--cd-header-offset: 5.25rem}}.course-detail-shell__inner{width:min(1120px,100%);margin:0 auto;padding:0 var(--cd-pad)}.cd-hero{background:radial-gradient(900px 320px at 92% -10%,rgb(14 116 144 / .12),transparent 55%),linear-gradient(165deg,#f8fafc,#eef6f9 48%,#e0f2fe);color:var(--cd-hero-ink);padding:1.25rem 0 2rem;border-bottom:1px solid var(--cd-line)}.cd-breadcrumb{display:flex;flex-wrap:nowrap;gap:.35rem .5rem;align-items:center;font-size:.8125rem;color:var(--cd-hero-muted);margin-bottom:1rem;min-width:0;overflow:hidden}.cd-breadcrumb a{color:var(--cd-accent-deep);text-decoration:none;flex-shrink:0}.cd-breadcrumb a:hover{color:var(--cd-accent);text-decoration:underline}.cd-breadcrumb__sep{color:#94a3b8;flex-shrink:0}@media (max-width: 599px){.cd-breadcrumb__tail{display:none}}.cd-hero__grid{display:grid;gap:1.25rem;align-items:start}.cd-cover-stack{order:1;display:flex;flex-direction:column;gap:.75rem;min-width:0}.cd-hero__copy{order:2;min-width:0}@media (min-width: 600px){.cd-hero__grid{grid-template-columns:1.2fr .8fr;gap:2rem;align-items:center}.cd-hero__copy{order:1}.cd-cover-stack{order:2}}.cd-hero__title{font-size:clamp(1.45rem,4.2vw,2.35rem);font-weight:800;letter-spacing:-.02em;line-height:1.15;margin:0 0 .65rem}.cd-hero__subtitle{margin:0 0 1rem;color:var(--cd-hero-muted);font-size:1.05rem;line-height:1.45;max-width:36rem}@media (max-width: 599px){.cd-hero__subtitle{font-size:.95rem;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.cd-snapshot__extra{display:none}.cd-snapshot span:has(+.cd-snapshot__extra):after{content:none}.cd-hero .course-public-meta__facts{display:none}}@media (max-width: 359px){.course-detail-shell{--cd-pad: .75rem}.cd-hero{padding:1rem 0 1.35rem}.cd-hero__title{font-size:clamp(1.28rem,6.5vw,1.55rem)}}.cd-trust{font-size:.9rem;color:var(--cd-hero-muted);margin-bottom:.85rem}.cd-trust strong{color:var(--cd-hero-ink);font-weight:700}.cd-snapshot{display:flex;flex-wrap:wrap;gap:.4rem .85rem;font-size:.875rem;color:#334155;margin:0 0 1.1rem}.cd-snapshot span:after{content:"·";margin-left:.85rem;color:#94a3b8}.cd-snapshot span:last-child:after{content:none}.cd-hero__instructor{display:inline-flex;align-items:center;gap:.65rem;margin-top:.35rem;min-height:var(--cd-touch);background:transparent;border:0;padding:.15rem 0;cursor:pointer;color:inherit;text-align:left;max-width:100%}.cd-hero__instructor:hover .cd-hero__instructor-name{text-decoration:underline}.cd-hero__instructor-text{min-width:0}.cd-hero__avatar{width:2.5rem;height:2.5rem;flex-shrink:0;border-radius:999px;-o-object-fit:cover;object-fit:cover;background:#e2e8f0;color:var(--cd-accent-deep);display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:.95rem;border:2px solid #fff;box-shadow:0 1px 4px #0f172a1f}.cd-hero__instructor-label{display:block;font-size:.75rem;color:var(--cd-hero-muted)}.cd-hero__instructor-name{display:block;font-weight:600;color:var(--cd-hero-ink)}.cd-hero__instructor-role{display:block;margin-top:.1rem;font-size:.75rem;color:var(--cd-hero-muted);max-width:16rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.cd-cover{position:relative;border-radius:calc(var(--cd-radius) + 2px);overflow:hidden;background:#e2e8f0;aspect-ratio:16 / 9;border:1px solid var(--cd-line);box-shadow:0 1px 2px #0f172a0a,0 12px 28px #0f172a14;isolation:isolate}.cd-cover.is-clickable{cursor:pointer}.cd-cover.is-clickable:focus-visible{outline:2px solid #0e7490;outline-offset:3px}.cd-cover.has-image .cd-cover__fallback{display:none!important}.cd-cover__img{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;max-width:none;-o-object-fit:cover;object-fit:cover;-o-object-position:center top;object-position:center top;display:block;background:#e2e8f0;z-index:0;transition:transform .45s ease}.cd-cover:hover .cd-cover__img{transform:scale(1.03)}.cd-cover__scrim{display:none}.cd-cover__fallback{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 30% 25%,rgb(14 116 144 / .16),transparent 42%),linear-gradient(145deg,#e2e8f0,#cffafe 70%,#a5f3fc);color:var(--cd-accent-deep);z-index:0}.cd-cover__fallback-mark{font-weight:800;font-size:clamp(2rem,8vw,3rem);letter-spacing:.04em;opacity:.9}.cd-cover__actions{position:static;inset:auto;z-index:auto;display:flex;flex-direction:row;flex-wrap:wrap;align-items:center;justify-content:flex-start;gap:.55rem;padding:0;pointer-events:auto}.cd-cover__actions>*{pointer-events:auto}.cd-cover__play{display:inline-flex;align-items:center;gap:.65rem;min-height:var(--cd-touch);max-width:100%;padding:.35rem .9rem .35rem .35rem;border:1px solid var(--cd-line);border-radius:999px;background:#fff;color:#0f172a;cursor:pointer;box-shadow:0 1px 2px #0f172a0f;-webkit-backdrop-filter:none;backdrop-filter:none;transition:transform .18s ease,background .18s ease,box-shadow .18s ease,border-color .18s ease}.cd-cover__play:hover{background:var(--cd-accent-soft, #ecfeff);border-color:#0e749059;transform:translateY(-1px);box-shadow:0 4px 14px #0f172a1a}.cd-cover__play:focus-visible{outline:2px solid #22d3ee;outline-offset:3px}.cd-cover__play-icon{flex:0 0 auto;width:2.25rem;height:2.25rem;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(145deg,#0e7490,#155e75);color:#fff;padding-left:.12rem;box-shadow:inset 0 1px #ffffff40}.cd-cover__play-label{display:flex;flex-direction:column;align-items:flex-start;gap:.05rem;min-width:0;text-align:left;padding-right:.25rem}.cd-cover__play-eyebrow{font-size:.68rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#64748b;line-height:1.1}.cd-cover__play-text{font-size:.9rem;font-weight:800;line-height:1.15;letter-spacing:-.01em}.cd-cover__secondary{min-height:var(--cd-touch);padding:.45rem .95rem;border:1px solid var(--cd-line);border-radius:999px;background:#f8fafc;color:#0f172a;font-size:.8125rem;font-weight:700;cursor:pointer;-webkit-backdrop-filter:none;backdrop-filter:none;transition:background .15s ease,border-color .15s ease}.cd-cover__secondary:hover{background:#fff;border-color:#0e749059;color:var(--cd-accent-deep, #155e75)}.cd-cover__cta{position:static;left:auto;bottom:auto;transform:none;min-height:var(--cd-touch);min-width:7.5rem;padding:.55rem 1.15rem;border:1px solid var(--cd-line);border-radius:999px;background:#fff;color:var(--cd-ink);font-weight:700;font-size:.9rem;cursor:pointer;box-shadow:0 1px 2px #0f172a0f}.cd-cover__cta:hover{background:var(--cd-accent-soft);color:var(--cd-accent-deep);border-color:#0e749059}@media (max-width: 359px){.cd-cover__actions{flex-direction:column;align-items:stretch}.cd-cover__play{gap:.55rem;padding-right:.85rem;width:100%;justify-content:flex-start}.cd-cover__secondary,.cd-cover__cta{width:100%;justify-content:center}.cd-cover__play-text{font-size:.875rem}}.cd-share{position:relative;margin-top:1rem}.cd-share__btn,.cd-btn{display:inline-flex;align-items:center;justify-content:center;min-height:var(--cd-touch);padding:.55rem 1rem;border-radius:10px;font-weight:700;font-size:.9375rem;border:1px solid transparent;cursor:pointer;text-decoration:none;transition:background .15s ease,color .15s ease,border-color .15s ease}.cd-share__btn{background:#fff;color:var(--cd-ink);border-color:var(--cd-line);box-shadow:0 1px 2px #0f172a0a}.cd-share__btn:hover{background:var(--cd-accent-soft);border-color:#a5f3fc;color:var(--cd-accent-deep)}.cd-share__menu{position:absolute;left:0;top:calc(100% + .35rem);z-index:20;min-width:12rem;background:#fff;color:var(--cd-ink);border:1px solid var(--cd-line);border-radius:12px;box-shadow:var(--cd-shadow);padding:.35rem}.cd-share__menu button{display:block;width:100%;text-align:left;padding:.65rem .75rem;border:0;background:transparent;border-radius:8px;font-size:.9rem;cursor:pointer;min-height:var(--cd-touch)}.cd-share__menu button:hover{background:var(--cd-soft)}@media (max-width: 899px){.cd-share__menu-extra{display:none}}.cd-body{padding:1.5rem 0 2rem}.cd-layout{display:grid;gap:1.75rem}@media (min-width: 900px){.cd-layout{grid-template-columns:minmax(0,1fr) 20rem;gap:2rem;align-items:start}}.cd-tabs{position:sticky;top:var(--cd-header-offset);z-index:15;background:#f8fafcf5;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--cd-line);margin:0 -.25rem 1.25rem;padding:0 .25rem}@media (max-width: 359px){.cd-tabs{position:static}}.cd-tabs__nav{display:flex;gap:.15rem;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}.cd-tabs__nav::-webkit-scrollbar{display:none}.cd-tabs__btn{flex:0 0 auto;min-height:var(--cd-touch);padding:.65rem .75rem;border:0;border-bottom:2px solid transparent;background:transparent;color:var(--cd-muted);font-weight:600;font-size:.9rem;white-space:nowrap;cursor:pointer}.cd-tabs__btn:hover{color:var(--cd-ink)}.cd-tabs__btn.is-active{color:var(--cd-accent-deep);border-bottom-color:var(--cd-accent)}.cd-tabs__full{display:none}@media (min-width: 600px){.cd-tabs__short{display:none}.cd-tabs__full{display:inline}.cd-tabs__btn{padding:.65rem .85rem}}.cd-overview-more__toggle{display:flex;align-items:center;justify-content:center;width:100%;min-height:var(--cd-touch);margin:.85rem 0 0;padding:.65rem 1rem;border:1px solid var(--cd-line);border-radius:12px;background:var(--cd-surface);color:var(--cd-accent-deep);font-weight:700;font-size:.9375rem;cursor:pointer;box-shadow:var(--cd-shadow)}.cd-overview-more__toggle:hover{background:var(--cd-accent-soft)}.cd-overview-more__body>.cd-panel{margin-top:1rem}.cd-panel{background:var(--cd-surface);border:1px solid var(--cd-line);border-radius:var(--cd-radius);padding:1.25rem 1.35rem;box-shadow:var(--cd-shadow)}.cd-panel+.cd-panel{margin-top:1rem}.cd-panel__title{margin:0 0 .85rem;font-size:1.2rem;font-weight:800;letter-spacing:-.01em}.cd-bullets{margin:0;padding:0;list-style:none}.cd-bullets li{position:relative;padding:.35rem 0 .35rem 1.1rem;color:#334155;line-height:1.45}.cd-bullets li:before{content:"–";position:absolute;left:0;color:var(--cd-accent);font-weight:700}.cd-bullets--grid{display:grid;gap:0 1.25rem}@media (min-width: 600px){.cd-bullets--grid{grid-template-columns:1fr 1fr}}.cd-meta-updated{margin:.85rem 0 0;font-size:.8125rem;color:var(--cd-muted)}.cd-prereq-list{list-style:none;margin:0;padding:0}.cd-prereq-list li+li{margin-top:.45rem}.cd-prereq-list li{display:flex;flex-wrap:wrap;align-items:center;gap:.35rem .65rem;min-height:var(--cd-touch)}.cd-prereq-list a{color:var(--cd-accent-deep);font-weight:600;text-decoration:none;padding:.35rem 0;min-height:var(--cd-touch);display:inline-flex;align-items:center}.cd-prereq-list a:hover{text-decoration:underline}.cd-prereq-status{font-size:.78rem;font-weight:650;padding:.25rem .5rem;border-radius:.4rem;line-height:1.3}.cd-prereq-status.is-done{background:#ecfdf5;color:#047857}.cd-prereq-status.is-missing{background:#fff1f2;color:#9f1239}.cd-purchase-includes{list-style:none;margin:0 0 1rem;padding:.65rem .7rem;border:1px solid var(--cd-line);border-radius:12px;background:linear-gradient(180deg,#fff,var(--cd-soft));display:flex;flex-direction:column;gap:.35rem}.cd-purchase-includes__item{display:flex;align-items:center;gap:.65rem;min-height:2rem;padding:.35rem .4rem;border-radius:8px;font-size:.875rem;font-weight:600;color:#334155;line-height:1.35}.cd-purchase-includes__item:hover{background:#ffffffd9}.cd-purchase-includes__icon{flex:0 0 1.65rem;width:1.65rem;height:1.65rem;border-radius:8px;background:var(--cd-accent-soft);border:1px solid #a5f3fc;position:relative}.cd-purchase-includes__icon:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;margin:auto}.cd-purchase-includes__item--lessons .cd-purchase-includes__icon:before{width:.7rem;height:.7rem;border-left:2px solid var(--cd-accent-deep);border-bottom:2px solid var(--cd-accent-deep);transform:translate(-1px,-1px);box-shadow:3px -3px 0 -1px var(--cd-accent-deep)}.cd-purchase-includes__item--video .cd-purchase-includes__icon{background:#e0e7ff;border-color:#c7d2fe}.cd-purchase-includes__item--video .cd-purchase-includes__icon:before{width:0;height:0;border-style:solid;border-width:5px 0 5px 8px;border-color:transparent transparent transparent #4338ca;transform:translate(1px)}.cd-purchase-includes__item--article .cd-purchase-includes__icon{background:#ecfdf5;border-color:#a7f3d0}.cd-purchase-includes__item--article .cd-purchase-includes__icon:before{width:.55rem;height:.7rem;border:2px solid #059669;border-radius:2px;box-shadow:inset 0 -4px 0 -2px #059669}.cd-purchase-includes__item--quiz .cd-purchase-includes__icon{background:#fffbeb;border-color:#fde68a;display:inline-flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:800;color:#b45309}.cd-purchase-includes__item--quiz .cd-purchase-includes__icon:before{content:"?";position:static;inset:auto;margin:0}.cd-purchase-includes__item--duration .cd-purchase-includes__icon:before{width:.7rem;height:.7rem;border:2px solid var(--cd-accent-deep);border-radius:999px;box-shadow:inset -2px -2px 0 -1px var(--cd-accent-deep)}.cd-purchase-includes__item--material .cd-purchase-includes__icon:before,.cd-purchase-includes__item--cert .cd-purchase-includes__icon:before,.cd-purchase-includes__item--access .cd-purchase-includes__icon:before{width:.55rem;height:.55rem;border-radius:2px;background:var(--cd-accent-deep)}.cd-purchase-includes__label{min-width:0}.cd-curric-lead{margin:0 0 .55rem;font-size:.9rem;color:var(--cd-muted);line-height:1.45}.cd-curric-help{display:inline-flex;align-items:center;justify-content:center;width:1.35rem;height:1.35rem;margin-left:.15rem;padding:0;border:1px solid var(--cd-line);border-radius:999px;background:var(--cd-soft);color:var(--cd-muted);font-size:.7rem;font-weight:800;cursor:help;vertical-align:middle}.cd-curric-toolbar{display:flex;flex-wrap:wrap;gap:.65rem 1rem;margin:0 0 .85rem;align-items:center}.cd-curric-toolbar__primary{width:auto;flex:1 1 auto;min-width:min(100%,11rem);max-width:100%}.cd-curric-toolbar__secondary{display:flex;flex-wrap:wrap;gap:.5rem .85rem;align-items:center}@media (max-width: 599px){.cd-curric-toolbar{flex-direction:column;align-items:stretch}.cd-curric-toolbar__primary{width:100%;max-width:none}}.cd-curric-mobile-note{margin-bottom:.85rem;display:flex;flex-wrap:wrap;gap:.65rem;align-items:center;justify-content:space-between}.cd-curric-mobile-note p{margin:0;flex:1 1 12rem}.cd-lesson.is-locked .cd-lesson__title{color:#64748b}.cd-empty{color:var(--cd-muted);font-size:.95rem;line-height:1.45;margin:0}.cd-desc{color:#334155;line-height:1.6}.cd-desc.is-clamped{max-height:12rem;overflow:hidden;position:relative}.cd-desc.is-clamped:after{content:"";position:absolute;left:0;right:0;bottom:0;height:3.5rem;background:linear-gradient(transparent,#fff)}.cd-link-btn{margin-top:.75rem;background:transparent;border:0;color:var(--cd-accent-deep);font-weight:700;cursor:pointer;padding:.35rem 0;min-height:var(--cd-touch)}.cd-curric-summary{font-size:.95rem;color:var(--cd-muted);margin:0 0 1rem}.cd-curric-search{margin:0 0 .85rem}.cd-curric-search__input{width:100%;max-width:28rem;min-height:var(--cd-touch);padding:.55rem .85rem;border:1px solid var(--cd-line);border-radius:10px;background:var(--cd-surface);color:var(--cd-ink);font-size:.9375rem}.cd-curric-search__input:focus{outline:2px solid var(--cd-accent-soft);border-color:var(--cd-accent-deep)}.cd-curric-list{display:flex;flex-direction:column;gap:.65rem}.cd-curric-empty-search{margin:.75rem 0 0}.cd-curric-more{margin-top:.85rem;width:100%;text-align:center;border:1px dashed var(--cd-line);border-radius:10px;padding:.65rem 1rem;background:var(--cd-soft)}.cd-curric-more:hover{background:var(--cd-accent-soft)}.cd-panel .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.cd-section{background:var(--cd-surface);border:1px solid var(--cd-line);border-radius:12px;overflow:hidden}.cd-section__toggle{width:100%;display:flex;align-items:center;justify-content:space-between;gap:.75rem;text-align:left;padding:.9rem 1rem;min-height:var(--cd-touch);background:transparent;border:0;cursor:pointer}.cd-section__toggle:hover{background:var(--cd-soft)}.cd-section__title{margin:0 0 .2rem;font-size:1rem;font-weight:700}.cd-section__meta{font-size:.8125rem;color:var(--cd-muted)}.cd-section__chevron{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;width:2rem;height:2rem;color:var(--cd-muted);transition:transform .15s ease}.cd-section__chevron svg{width:1.25rem;height:1.25rem}.cd-section__chevron.is-open{transform:rotate(180deg)}.cd-lesson{display:flex;align-items:center;justify-content:space-between;gap:.75rem;width:100%;padding:.75rem 1rem;border-top:1px solid var(--cd-line);background:transparent;text-align:left;min-height:var(--cd-touch)}.cd-lesson__main{flex:1 1 auto;min-width:0}.cd-lesson__duration{flex:0 0 auto;margin-left:.5rem;font-size:.8125rem;font-weight:600;color:var(--cd-muted);font-variant-numeric:tabular-nums;white-space:nowrap}@media (max-width: 599px){.cd-lesson{flex-wrap:wrap;align-items:flex-start}.cd-lesson__duration{margin-left:auto}}button.cd-lesson,a.cd-lesson{cursor:pointer;border-left:0;border-right:0;border-bottom:0;text-decoration:none;color:inherit}button.cd-lesson:hover,a.cd-lesson:hover{background:var(--cd-accent-soft)}.cd-curric-empty{margin-top:.5rem}.cd-curric-empty__actions{display:flex;flex-wrap:wrap;gap:.65rem;margin-top:.85rem}.cd-curric-empty__btn{width:auto;min-width:min(100%,11rem);min-height:var(--cd-touch);justify-content:center}.cd-lesson__title{margin:0 0 .25rem;font-size:.9rem;font-weight:600;color:var(--cd-ink)}.cd-lesson__meta{display:flex;flex-wrap:wrap;gap:.35rem .5rem;font-size:.75rem;color:var(--cd-muted)}.cd-badge{display:inline-block;padding:.15rem .45rem;border-radius:6px;background:var(--cd-soft);border:1px solid var(--cd-line);font-weight:600;color:#475569}.cd-badge--bonus{background:#fef3c7;color:#92400e}.cd-badge--preview{background:var(--cd-accent-soft);border-color:#a5f3fc;color:var(--cd-accent-deep)}.cd-badge--locked{background:#f1f5f9;color:#64748b}.cd-purchase{background:var(--cd-surface);border:1px solid var(--cd-line);border-radius:var(--cd-radius);padding:1.25rem;box-shadow:var(--cd-shadow)}@media (max-width: 899px){.cd-purchase{padding:1rem}.cd-purchase__tags,.cd-purchase-includes{display:none}.cd-purchase .cd-cert{margin-bottom:.75rem;padding:.55rem .7rem;font-size:.8125rem}.cd-purchase .cd-price__current{font-size:1.45rem}}@media (min-width: 900px){.cd-purchase-wrap{position:sticky;top:calc(var(--cd-header-offset) + .75rem)}}.cd-price{display:flex;align-items:baseline;gap:.5rem;margin-bottom:.85rem}.cd-price__current{font-size:1.75rem;font-weight:800}.cd-price__old{color:var(--cd-muted);text-decoration:line-through;font-size:1rem}.cd-cert{border:1px solid var(--cd-line);background:var(--cd-soft);border-radius:10px;padding:.75rem .85rem;margin-bottom:1rem;font-size:.875rem;color:#334155}.cd-cert strong{display:block;margin-bottom:.2rem;color:var(--cd-ink)}.cd-btn--primary{width:100%;background:var(--cd-accent);color:#fff}.cd-btn--primary:hover{background:var(--cd-accent-deep)}.cd-btn--primary:disabled,.cd-btn--primary.is-disabled{background:#94a3b8;cursor:not-allowed}.cd-btn--ghost{width:100%;background:var(--cd-soft);color:var(--cd-ink);border-color:var(--cd-line)}.cd-btn--ghost:hover{background:#e2e8f0}.cd-btn+.cd-btn{margin-top:.55rem}.cd-note{margin:.65rem 0 0;font-size:.875rem;color:#92400e;background:#fffbeb;border:1px solid #fde68a;border-radius:10px;padding:.65rem .75rem;line-height:1.4}.cd-related{margin-top:2rem;padding-top:1.5rem;border-top:1px solid var(--cd-line)}.cd-related__title{margin:0 0 1rem;font-size:1.25rem;font-weight:800}.cd-related__grid{display:grid;gap:.85rem}@media (max-width: 599px){.cd-related{margin-left:calc(-1 * var(--cd-pad));margin-right:calc(-1 * var(--cd-pad));padding-bottom:.25rem}.cd-related__title{padding:0 var(--cd-pad)}.cd-related__grid{display:flex;gap:.75rem;overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding:0 var(--cd-pad) .35rem;scroll-padding-inline:var(--cd-pad)}.cd-related__grid::-webkit-scrollbar{display:none}.cd-related__card{flex:0 0 min(78%,17.5rem);scroll-snap-align:start}.cd-related__meta,.cd-related__billing{display:none}}@media (min-width: 600px){.cd-related__grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (min-width: 900px){.cd-related__grid{grid-template-columns:repeat(4,minmax(0,1fr))}}.cd-related__card{display:block;background:var(--cd-surface);border:1px solid var(--cd-line);border-radius:12px;overflow:hidden;text-decoration:none;color:inherit;box-shadow:var(--cd-shadow)}.cd-related__card:hover{border-color:#a5f3fc}.cd-related__media{aspect-ratio:16 / 9;background:#e2e8f0;position:relative}.cd-related__media img{width:100%;height:100%;-o-object-fit:cover;object-fit:cover;-o-object-position:center top;object-position:center top}.cd-related__fallback{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;font-weight:800;color:var(--cd-accent-deep);background:linear-gradient(145deg,#e2e8f0,#cffafe)}.cd-related__body{padding:.75rem .85rem .95rem}.cd-related__name{font-size:.9rem;font-weight:700;line-height:1.3;margin:0 0 .35rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.cd-related__meta{font-size:.75rem;color:var(--cd-muted)}.cd-related__price{margin-top:.35rem;font-weight:700;font-size:.9rem}.cd-related__billing{margin-top:.4rem}.cd-instructor-panel{overflow:hidden}.cd-instructor{display:flex;flex-wrap:wrap;gap:1.1rem;align-items:flex-start}.cd-instructor__avatar{width:112px;height:112px;border-radius:999px;-o-object-fit:cover;object-fit:cover;flex-shrink:0;border:3px solid #e2e8f0;background:#e2e8f0}@media (max-width: 599px){.cd-instructor__avatar{width:3.75rem;height:3.75rem;border-width:2px}.cd-instructor__avatar--fallback{font-size:1.35rem}.cd-instructor__stats{display:none}}@media (min-width: 600px){.cd-instructor__meta-line{display:none}}.cd-instructor__avatar--fallback{display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(160deg,#cbd5e1,#94a3b8);color:#0f172a;font-size:2.25rem;font-weight:800}.cd-instructor__body{min-width:min(100%,14rem);flex:1 1 14rem}.cd-instructor__name{margin:0;font-size:clamp(1.2rem,2.5vw,1.45rem);font-weight:800;letter-spacing:-.02em}.cd-instructor__name-link{color:inherit;text-decoration:none}.cd-instructor__name-link:hover{color:var(--cd-accent-deep);text-decoration:underline}.cd-instructor__role{margin:.35rem 0 0;color:var(--cd-accent-deep);font-weight:700;line-height:1.35}.cd-instructor__workplace{margin:.25rem 0 0;color:var(--cd-muted);font-size:.875rem;line-height:1.4}.cd-instructor__meta-line{margin:.55rem 0 0;font-size:.875rem;color:var(--cd-muted);font-weight:600;line-height:1.4}.cd-instructor__bio.is-clamped{display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}.cd-instructor-courses__more{margin:.75rem 0 0}.cd-instructor__stats{display:flex;flex-wrap:wrap;gap:.55rem;margin:.9rem 0 0}.cd-instructor__stat{min-width:5.5rem;padding:.55rem .75rem;border:1px solid var(--cd-line);border-radius:10px;background:var(--cd-soft);text-align:center}.cd-instructor__stat dt{margin:0;font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--cd-muted)}.cd-instructor__stat dd{margin:.15rem 0 0;font-size:1.15rem;font-weight:800;color:var(--cd-ink)}.cd-instructor__about{margin-top:1.15rem;padding-top:1rem;border-top:1px solid var(--cd-line)}.cd-instructor__about-title{margin:0 0 .45rem;font-size:1rem;font-weight:800}.cd-instructor__bio{margin:0;color:#334155;line-height:1.55;white-space:pre-line}.cd-instructor__empty-bio{margin-top:1rem}.cd-instructor__solo-note{margin:1rem 0 0}.cd-instructor__cta{margin-top:1.1rem}.cd-instructor__cta-btn{display:inline-flex;align-items:center;justify-content:center;min-height:var(--cd-touch);width:auto;min-width:min(100%,14rem)}.cd-instructor-courses{margin-top:1.35rem;padding-top:1.1rem;border-top:1px solid var(--cd-line)}.cd-instructor-courses__title{margin:0 0 .75rem;font-size:1.05rem;font-weight:800}.cd-instructor-courses__list{list-style:none;margin:0;padding:0;display:grid;gap:.65rem}@media (min-width: 600px){.cd-instructor-courses__list{grid-template-columns:1fr 1fr}}.cd-instructor-courses__card{display:flex;gap:.75rem;align-items:center;padding:.65rem;border:1px solid var(--cd-line);border-radius:12px;background:#fff;text-decoration:none;color:inherit;min-height:var(--cd-touch)}.cd-instructor-courses__card:hover{border-color:#a5f3fc;background:var(--cd-accent-soft)}.cd-instructor-courses__thumb{width:3.5rem;height:3.5rem;border-radius:8px;overflow:hidden;flex-shrink:0;background:#e2e8f0}.cd-instructor-courses__thumb img{width:100%;height:100%;-o-object-fit:cover;object-fit:cover;-o-object-position:center top;object-position:center top;display:block}.cd-instructor-courses__thumb-fallback{display:flex;width:100%;height:100%;align-items:center;justify-content:center;font-size:.7rem;font-weight:800;color:#64748b}.cd-instructor-courses__card-body{min-width:0;display:flex;flex-direction:column;gap:.2rem}.cd-instructor-courses__card-title{font-weight:700;color:var(--cd-ink);line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.cd-instructor-courses__card-meta{font-size:.78rem;color:var(--cd-muted)}.cd-faq-section{margin-top:1.75rem;padding:1.35rem 1.25rem 1.2rem;border:1px solid rgb(14 116 144 / .18);border-radius:calc(var(--cd-radius) + 2px);background:linear-gradient(180deg,#ecfeffa6,#fff 42%),var(--cd-surface);box-shadow:var(--cd-shadow)}@media (min-width: 600px){.cd-faq-section{margin-top:2rem;padding:1.5rem 1.5rem 1.35rem}}.cd-faq-section__head{margin-bottom:1rem;padding-bottom:.85rem;border-bottom:1px solid rgb(14 116 144 / .12)}.cd-faq-section__eyebrow{margin:0 0 .25rem;font-size:.7rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--cd-accent-deep, #155e75)}.cd-faq-section__title{margin:0 0 .35rem;font-size:clamp(1.15rem,2.5vw,1.35rem);font-weight:800;letter-spacing:-.02em;color:var(--cd-ink)}.cd-faq-section__lead{margin:0;font-size:.875rem;line-height:1.45;color:var(--cd-muted, #64748b);max-width:36rem}.cd-faq{display:flex;flex-direction:column;gap:.5rem}.cd-faq__item{border:1px solid var(--cd-line);border-radius:12px;background:#fff;overflow:hidden;transition:border-color .15s ease,box-shadow .15s ease}.cd-faq__item.is-open{border-color:#0e749059;box-shadow:0 0 0 1px #0e749014}.cd-faq__q{width:100%;display:flex;align-items:flex-start;gap:.65rem;text-align:left;min-height:var(--cd-touch);padding:.85rem .9rem;border:0;background:transparent;cursor:pointer;font-weight:700;font-size:.95rem;color:var(--cd-ink)}.cd-faq__q:hover{background:#f8fafc}.cd-faq__index{flex:0 0 auto;margin-top:.1rem;font-size:.75rem;font-weight:800;letter-spacing:.04em;color:var(--cd-accent-deep, #155e75);font-variant-numeric:tabular-nums}.cd-faq__q-text{flex:1 1 auto;min-width:0;line-height:1.35}.cd-faq__chevron{flex:0 0 auto;margin-top:.1rem;color:var(--cd-muted);transition:transform .18s ease;display:inline-flex}.cd-faq__chevron.is-open{transform:rotate(180deg);color:var(--cd-accent-deep, #155e75)}.cd-faq__a{padding:0 .9rem .95rem 2.55rem}@media (max-width: 359px){.cd-faq__a{padding-left:.9rem}}.cd-faq__a p{margin:0;color:#475569;line-height:1.55;font-size:.9rem}.cd-reviews-empty{margin-top:1rem;padding:1rem;border:1px dashed var(--cd-line);border-radius:12px;background:var(--cd-soft)}.cd-reviews-agg{display:grid;gap:1.25rem}@media (min-width: 600px){.cd-reviews-agg{grid-template-columns:8rem 1fr;align-items:center}}.cd-reviews-score{text-align:center}.cd-reviews-score__num{font-size:2.75rem;font-weight:800;color:var(--cd-accent-deep);line-height:1}.cd-stars{display:inline-flex;gap:.1rem;margin-top:.25rem;color:#cbd5e1;font-size:1.1rem;line-height:1}.cd-stars--sm{font-size:.95rem;margin-top:.35rem}.cd-stars__item.is-on{color:#f59e0b}.cd-review-filters{display:flex;flex-wrap:nowrap;gap:.4rem;margin:1rem 0 .25rem;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding-bottom:.15rem}.cd-review-filters::-webkit-scrollbar{display:none}.cd-review-filter{flex:0 0 auto;min-height:var(--cd-touch);padding:.35rem .7rem;border:1px solid var(--cd-line);border-radius:8px;background:#fff;color:#475569;font-size:.8125rem;font-weight:600;cursor:pointer}.cd-review-filter.is-active,.cd-review-filter:hover{border-color:#a5f3fc;background:var(--cd-accent-soft);color:var(--cd-accent-deep)}.cd-review-list{margin-top:1.25rem}.cd-review-card{padding:1.1rem 0;border-top:1px solid var(--cd-line)}.cd-review-card__head{display:flex;align-items:flex-start;justify-content:space-between;gap:.75rem}.cd-review-card__author{margin:0;font-weight:700;color:var(--cd-ink)}.cd-review-card__time{display:block;margin-top:.15rem;font-size:.75rem;color:var(--cd-muted)}.cd-review-card__body{margin:.75rem 0 0;color:#334155;line-height:1.55}.cd-dist-row{display:grid;grid-template-columns:4rem 1fr 2.5rem;gap:.5rem;align-items:center;font-size:.8125rem;color:var(--cd-muted)}.cd-dist-bar{height:.45rem;background:#e2e8f0;border-radius:999px;overflow:hidden}.cd-dist-bar>span{display:block;height:100%;background:#f59e0b}.cd-sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:40;display:flex;align-items:center;gap:.75rem;padding:.65rem 1rem calc(.65rem + env(safe-area-inset-bottom));background:#fffffff7;border-top:1px solid var(--cd-line);box-shadow:0 -6px 20px #0f172a14}.cd-sticky-bar__price{flex-shrink:0}.cd-sticky-bar .cd-price__current{font-size:1.15rem}.cd-sticky-bar .cd-btn--primary{width:auto;flex:1;max-width:16rem;margin-left:auto}.cd-sticky-bar__msg{font-size:.8rem;max-width:12rem;margin-left:auto}@media (min-width: 600px){.cd-sticky-bar{display:none}.course-detail-shell{padding-bottom:3rem}}.cd-preview-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:.75rem;padding-bottom:max(.75rem,env(safe-area-inset-bottom))}.cd-preview-overlay[hidden]{display:none!important}.cd-preview-fade-enter,.cd-preview-fade-leave{transition-property:opacity;transition-duration:.28s;transition-timing-function:ease-out}.cd-preview-fade-enter-start,.cd-preview-fade-leave-end{opacity:0}.cd-preview-fade-enter-end,.cd-preview-fade-leave-start{opacity:1}.cd-preview-dialog-enter,.cd-preview-dialog-leave{transition-property:opacity,transform;transition-duration:.32s;transition-timing-function:cubic-bezier(.16,1,.3,1)}.cd-preview-dialog-enter-start,.cd-preview-dialog-leave-end{opacity:0;transform:translateY(16px) scale(.96)}.cd-preview-dialog-enter-end,.cd-preview-dialog-leave-start{opacity:1;transform:translateY(0) scale(1)}.cd-preview-overlay__backdrop{position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;border:0;padding:0;margin:0;background:#0f172ab8;cursor:pointer}.cd-preview-dialog--cover{width:min(40rem,calc(100vw - 1.5rem))}.cd-preview-stage--cover{padding:0;background:#0f172a}.cd-cover-lightbox__img{display:block;width:100%;height:auto;max-height:min(78vh,720px);-o-object-fit:contain;object-fit:contain;-o-object-position:center top;object-position:center top}.cd-preview-dialog{position:relative;z-index:1;display:flex;flex-direction:column;width:min(56rem,calc(100vw - 1.5rem));max-height:min(92vh,100dvh - 1.5rem);background:#fff;border-radius:1rem;overflow:hidden;box-shadow:0 25px 50px -12px #00000059}.cd-preview-header{flex:0 0 auto;display:flex;align-items:flex-start;justify-content:space-between;gap:.75rem;padding:.85rem 1rem;background:#0f172a!important;color:#fff;z-index:90}.cd-preview-header__eyebrow{margin:0 0 .2rem;font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:#cbd5e1}.cd-preview-header__title{margin:0;font-size:clamp(.95rem,2.4vw,1.2rem);font-weight:800;line-height:1.25}.cd-preview-header__meta{margin:.25rem 0 0;font-size:.75rem;color:#94a3b8}.cd-preview-close{flex-shrink:0;width:2.75rem;height:2.75rem;min-width:2.75rem;min-height:2.75rem;border:1px solid rgb(255 255 255 / .25);border-radius:999px;background:#ffffff1f;color:#fff;font-size:1.75rem;line-height:1;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;position:relative;z-index:5;pointer-events:auto;-webkit-tap-highlight-color:transparent}.cd-preview-close:hover{background:#ffffff38}.cd-preview-stage{flex:1 1 auto;min-height:0;display:flex;align-items:center;justify-content:center;background:#0b1220;overflow:hidden}.cd-preview-stage--readable{align-items:stretch;justify-content:stretch;background:#fff}.cd-preview-stage__empty{width:100%;padding:1.25rem;background:#fff}.cd-preview-player{width:100%;border-radius:0!important;border:0!important;box-shadow:none!important;background:#0b1220}.cd-preview-player .mt-4{display:none!important}.cd-preview-player .js-player,.cd-preview-player .plyr,.cd-preview-player .aspect-video{width:100%!important;max-height:min(56.25vw,calc(100dvh - 13.5rem))!important;border-radius:0!important;box-shadow:none!important}.cd-preview-player .plyr__video-wrapper{max-height:inherit}.cd-preview-player .plyr__control--overlaid{z-index:3}.cd-preview-playlist{flex:0 1 auto;max-height:9.5rem;overflow:auto;padding:.65rem 1rem;border-top:1px solid var(--cd-line);background:var(--cd-soft)}.cd-preview-playlist__label{margin:0 0 .4rem;font-size:.75rem;font-weight:700;color:#64748b;text-transform:none}.cd-preview-playlist__list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.35rem}.cd-preview-playlist__item{width:100%;display:flex;align-items:center;justify-content:space-between;gap:.65rem;text-align:left;min-height:var(--cd-touch);padding:.45rem .65rem;border:1px solid var(--cd-line);border-radius:8px;background:#fff;cursor:pointer;color:inherit}.cd-preview-playlist__item:hover{border-color:#a5f3fc;background:var(--cd-accent-soft)}.cd-preview-playlist__item.is-active{border-color:var(--cd-accent);background:var(--cd-accent-soft);font-weight:600}.cd-preview-playlist__title{min-width:0;font-size:.8125rem;line-height:1.3;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.cd-preview-playlist__type{flex:0 0 auto;font-size:.7rem;font-weight:700;color:#64748b}.cd-preview-article{margin:0 0 .75rem;font-size:.9rem;line-height:1.55;color:#334155;white-space:pre-line}.cd-preview-article-wrap{display:flex;flex-direction:column;gap:.75rem;width:100%;min-height:0;max-height:min(58vh,28rem);overflow:auto;padding:1rem 1.15rem .85rem;background:#fff;color:#0f172a;-webkit-overflow-scrolling:touch}.cd-preview-article-wrap.is-long{max-height:min(52vh,24rem)}.cd-preview-article-body{margin:0;font-size:.92rem;line-height:1.55;color:#334155;white-space:normal}.cd-preview-article-wrap .itm-markdown-body,.cd-preview-article-wrap .itm-rich-html-body,.cd-preview-article-wrap .prose{color:#334155}.cd-preview-article-wrap .prose :where(p,li,h1,h2,h3,h4,h5,h6,strong,em,a,blockquote){color:inherit}.cd-preview-article-body .katex{font-size:1.05em;color:#0f172a}.cd-preview-article-body img{max-width:100%;height:auto}.cd-preview-stage__empty .cd-preview-article-body{text-align:left;max-height:min(40vh,16rem);overflow:auto}.cd-preview-footer{flex:0 0 auto;display:flex;flex-wrap:wrap;align-items:center;gap:.75rem 1rem;padding:.85rem 1rem calc(.85rem + env(safe-area-inset-bottom));background:#fff;border-top:1px solid var(--cd-line);z-index:90}.cd-preview-footer__text{margin:0;flex:1 1 12rem;font-size:.875rem;color:#475569;line-height:1.4}.cd-preview-footer__cta{width:auto!important;min-width:8.5rem;min-height:var(--cd-touch)}.cd-preview-player--promo{aspect-ratio:16 / 9;background:#0f172a}.cd-preview-promo-iframe{display:block;width:100%;height:100%;border:0}.cd-preview-dialog--promo{max-width:min(44rem,100%)}.cd-sheet-overlay{z-index:210}.cd-sheet-dialog{position:relative;z-index:1;width:min(28rem,100%);max-height:min(90vh,100dvh - 1.5rem);overflow:auto;margin:0;padding:1.25rem 1.15rem calc(1.15rem + env(safe-area-inset-bottom));background:#fff;border-radius:1rem;box-shadow:0 20px 50px #0f172a47;cursor:default;-webkit-overflow-scrolling:touch}.cd-sheet-dialog__title{margin:0;font-size:1.2rem;font-weight:800;color:var(--cd-ink);letter-spacing:-.01em}.cd-sheet-dialog__text{margin:.65rem 0 0;font-size:.9375rem;line-height:1.45;color:#475569}.cd-sheet-field{margin-top:1rem}.cd-sheet-field__label{display:block;margin-bottom:.4rem;font-size:.875rem;font-weight:700;color:#1e293b}.cd-sheet-field__select{width:100%;min-height:var(--cd-touch);padding:.55rem .75rem;border:1px solid var(--cd-line);border-radius:10px;background:#fff;color:#1e293b;font-size:.9rem}.cd-sheet-field__hint{margin:.4rem 0 0;font-size:.75rem;color:var(--cd-muted)}.cd-sheet-actions{display:flex;flex-direction:column;gap:.55rem;margin-top:1.25rem}.cd-sheet-actions .cd-btn{width:100%}@media (min-width: 600px){.cd-sheet-actions{flex-direction:row}.cd-sheet-actions .cd-btn{width:auto;flex:1 1 auto}}.cd-modal-overlay{background:#0f172ab8;cursor:pointer}@media (max-width: 599px){.cd-preview-overlay{padding:.5rem;align-items:flex-end}.cd-preview-dialog{max-height:min(94vh,100dvh - .75rem);border-radius:1rem 1rem .75rem .75rem}.cd-preview-player .js-player,.cd-preview-player .plyr,.cd-preview-player .aspect-video{max-height:calc(100dvh - 12.5rem)!important}.cd-preview-playlist{max-height:none;overflow:visible;padding:.55rem .75rem}.cd-preview-playlist__list{flex-direction:row;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;gap:.45rem;padding-bottom:.15rem}.cd-preview-playlist__list::-webkit-scrollbar{display:none}.cd-preview-playlist__item{flex:0 0 auto;width:auto;max-width:12.5rem;flex-direction:column;align-items:flex-start;gap:.2rem}.cd-preview-playlist__title{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.cd-preview-footer{flex-direction:column;align-items:stretch}.cd-preview-footer__cta{width:100%!important;max-width:none}.cd-sheet-dialog{width:100%;border-radius:1rem 1rem .75rem .75rem}}@media (max-width: 359px){.cd-preview-playlist__item{max-width:10.5rem;padding:.4rem .55rem}.cd-preview-footer__text{font-size:.8125rem}}.course-public-meta{display:flex;flex-direction:column;gap:.4rem;min-width:0}.course-public-meta__facts{display:flex;flex-wrap:wrap;gap:.25rem .65rem;font-size:.8rem;color:#64748b;line-height:1.35}.course-public-meta__enroll.is-closed{color:#9f1239;font-weight:650}.course-public-meta__tags{display:flex;flex-wrap:wrap;gap:.3rem}.course-public-meta__tag{display:inline-flex;align-items:center;max-width:100%;min-height:2.25rem;padding:.4rem .7rem;border-radius:.5rem;background:#f1f5f9;color:#334155;font-size:.78rem;font-weight:650;text-decoration:none;line-height:1.3}a.course-public-meta__tag:hover{background:#e0f2fe;color:#0e7490}.course-public-meta__tag--more{color:#64748b;font-weight:600}.cd-hero .course-public-meta__tag{background:#fff;color:#334155;border:1px solid var(--cd-line)}.cd-hero a.course-public-meta__tag:hover{background:var(--cd-accent-soft);color:var(--cd-accent-deep);border-color:#a5f3fc}.course-public-meta--compact .course-public-meta__facts{font-size:.72rem}