.pxl-learning{--pxl-primary:#153b56;--pxl-primary-dark:#0d2638;--pxl-accent:#d78a2d;--pxl-surface:#f5f8fa;--pxl-border:#d9e1e7;--pxl-text:#17222b;--pxl-muted:#60717d;--pxl-success:#2c7a4b;--pxl-radius:18px;--pxl-shadow:0 18px 48px rgba(20,45,62,.10);color:var(--pxl-text)}
.pxl-learning *{box-sizing:border-box}.pxl-shell{width:min(1320px,calc(100% - 40px));margin:0 auto}.pxl-section{padding:clamp(3.5rem,7vw,6rem) 0}.pxl-section--lesson{padding-top:2.2rem}.pxl-kicker{margin:0 0 .55rem;color:var(--pxl-accent);font-size:.78rem;font-weight:850;letter-spacing:.12em;text-transform:uppercase}.pxl-lede{max-width:760px;font-size:clamp(1.05rem,1.8vw,1.35rem);line-height:1.7;color:rgba(255,255,255,.86)}
.pxl-button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:.8rem 1.2rem;border:0;border-radius:999px;background:var(--pxl-primary);color:#fff!important;text-decoration:none!important;font-weight:800;cursor:pointer}.pxl-button:hover{background:var(--pxl-primary-dark)}.pxl-button--secondary{background:#fff;color:var(--pxl-primary)!important;border:1px solid var(--pxl-border)}.pxl-text-link{font-weight:800;color:var(--pxl-primary);text-decoration:none}.pxl-actions{display:flex;gap:.8rem;flex-wrap:wrap}
.pxl-course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.25rem}.pxl-course-card{overflow:hidden;border:1px solid var(--pxl-border);border-radius:var(--pxl-radius);background:#fff;box-shadow:0 10px 30px rgba(20,45,62,.06)}.pxl-course-card__image{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--pxl-surface)}.pxl-course-card__image img{width:100%;height:100%;object-fit:cover}.pxl-course-card__body{padding:1.35rem}.pxl-course-card__meta{display:flex;gap:.45rem;flex-wrap:wrap;margin-bottom:.65rem}.pxl-course-card__meta span{display:inline-flex;padding:.3rem .55rem;border-radius:999px;background:var(--pxl-surface);color:var(--pxl-muted);font-size:.77rem;font-weight:800}.pxl-course-card h2{margin:.3rem 0 .7rem;font-size:clamp(1.45rem,2vw,2rem);line-height:1.14}.pxl-course-card h2 a{color:var(--pxl-text);text-decoration:none}.pxl-course-card p{color:var(--pxl-muted);line-height:1.7}.pxl-course-card small{display:block;margin:.4rem 0 .9rem;color:var(--pxl-muted)}
.pxl-progress{height:8px;overflow:hidden;border-radius:999px;background:#e5ebef}.pxl-progress span{display:block;height:100%;border-radius:inherit;background:var(--pxl-accent)}
.pxl-course-hero{padding:clamp(4rem,7vw,6.5rem) 0;background:linear-gradient(125deg,var(--pxl-primary-dark),var(--pxl-primary));color:#fff}.pxl-course-hero__grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(320px,.7fr);gap:clamp(2rem,6vw,5rem);align-items:center}.pxl-course-hero h1,.pxl-lesson-top h1{margin:.2rem 0 1rem;font-size:clamp(2.7rem,5vw,5.3rem);line-height:.98}.pxl-course-hero__image img{width:100%;max-height:460px;object-fit:cover;border-radius:24px;box-shadow:var(--pxl-shadow)}.pxl-course-facts{display:flex;gap:.6rem;flex-wrap:wrap;margin-top:1.3rem}.pxl-course-facts span{padding:.45rem .7rem;border:1px solid rgba(255,255,255,.2);border-radius:999px;background:rgba(255,255,255,.08);font-weight:800;font-size:.86rem}.pxl-course-layout{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(320px,.6fr);gap:clamp(2rem,5vw,4rem);align-items:start}.pxl-course-description{font-size:1.04rem;line-height:1.8}.pxl-progress-card{display:grid;grid-template-columns:auto 1fr auto;gap:1rem;align-items:center;padding:1rem 1.2rem;border:1px solid var(--pxl-border);border-radius:14px;background:var(--pxl-surface);margin-bottom:2rem}.pxl-progress-card>div:first-child{display:flex;gap:.35rem;flex-direction:column}.pxl-progress-card span{color:var(--pxl-muted);font-size:.86rem}.pxl-enroll-card{position:sticky;top:1.5rem;padding:1.5rem;border:1px solid var(--pxl-border);border-radius:var(--pxl-radius);background:#fff;box-shadow:var(--pxl-shadow)}.pxl-enroll-card h2{margin-top:0;font-size:1.8rem}.pxl-enroll-card p{color:var(--pxl-muted);line-height:1.65}.pxl-price{font-size:1.7rem!important;color:var(--pxl-text)!important;font-weight:850}.pxl-enroll-card .pxl-button{width:100%}
.pxl-curriculum{margin-top:3rem}.pxl-curriculum>h2{font-size:clamp(2rem,3vw,3rem)}.pxl-section-card{margin:1rem 0;border:1px solid var(--pxl-border);border-radius:16px;background:#fff;overflow:hidden}.pxl-section-card h3{margin:0;padding:1rem 1.2rem;background:var(--pxl-surface);font-size:1.05rem}.pxl-section-card ol{list-style:none;margin:0;padding:0}.pxl-section-card li{display:grid;grid-template-columns:38px 1fr auto;gap:.7rem;align-items:center;padding:.88rem 1.1rem;border-top:1px solid var(--pxl-border)}.pxl-section-card li:first-child{border-top:0}.pxl-section-card li a{color:var(--pxl-text);text-decoration:none;font-weight:750}.pxl-section-card li small{color:var(--pxl-muted)}.pxl-lesson-status{display:flex;width:30px;height:30px;align-items:center;justify-content:center;border-radius:50%;background:#edf2f5;color:var(--pxl-primary);font-weight:850}.pxl-section-card li.is-complete .pxl-lesson-status{background:#e8f5ed;color:var(--pxl-success)}
.pxl-lesson-top{padding:2.1rem 0;background:var(--pxl-primary-dark);color:#fff}.pxl-back-link{display:inline-block;margin-bottom:1.2rem;color:#fff;text-decoration:none;font-weight:800;opacity:.85}.pxl-lesson-heading{display:flex;justify-content:space-between;gap:2rem;align-items:flex-end}.pxl-lesson-heading h1{font-size:clamp(2.2rem,4vw,4.3rem);margin-bottom:0}.pxl-mini-progress{display:flex;flex-direction:column;align-items:flex-end}.pxl-mini-progress strong{font-size:1.6rem}.pxl-mini-progress span{font-size:.8rem;opacity:.8}.pxl-learning-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:2rem;align-items:start}.pxl-lesson-main{min-width:0}.pxl-video-shell{overflow:hidden;border-radius:18px;background:#0b1115;box-shadow:var(--pxl-shadow)}.pxl-video{display:block;width:100%;aspect-ratio:16/9;background:#000}.pxl-video-note{padding:.65rem 1rem;color:#b8c3ca;font-size:.78rem}.pxl-lesson-content{padding:2rem 0;font-size:1.06rem;line-height:1.85}.pxl-lesson-content img{max-width:100%;height:auto}.pxl-workbook-card{display:flex;justify-content:space-between;gap:2rem;align-items:center;margin:1rem 0 2rem;padding:1.25rem 1.35rem;border:1px solid var(--pxl-border);border-left:5px solid var(--pxl-accent);border-radius:14px;background:var(--pxl-surface)}.pxl-workbook-card h2{margin:.2rem 0}.pxl-workbook-card p{margin:.45rem 0;color:var(--pxl-muted)}.pxl-lesson-actions{display:flex;justify-content:space-between;gap:1rem;align-items:center;padding-top:1.5rem;border-top:1px solid var(--pxl-border)}.pxl-lesson-actions form{margin-left:auto}.pxl-lesson-sidebar{position:sticky;top:1.5rem;max-height:calc(100vh - 3rem);overflow:auto;padding:1.1rem;border:1px solid var(--pxl-border);border-radius:16px;background:#fff}.pxl-lesson-sidebar h2{margin:.2rem 0 1rem;font-size:1.15rem}.pxl-sidebar-section{margin-bottom:1rem}.pxl-sidebar-section>strong{display:block;margin-bottom:.5rem;color:var(--pxl-muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.07em}.pxl-sidebar-section ol{list-style:none;margin:0;padding:0}.pxl-sidebar-section li a{display:grid;grid-template-columns:20px 1fr;gap:.45rem;padding:.55rem .45rem;border-radius:8px;color:var(--pxl-text);text-decoration:none;font-size:.9rem}.pxl-sidebar-section li.is-current a{background:var(--pxl-surface);font-weight:800}.pxl-sidebar-section li.is-complete a span{color:var(--pxl-success)}
.pxl-access-denied,.pxl-empty{max-width:760px;margin:0 auto;padding:2rem;border:1px solid var(--pxl-border);border-radius:var(--pxl-radius);background:#fff;text-align:center}.pxl-access-denied h1,.pxl-empty h2{margin:.35rem 0 1rem}.pxl-notice{padding:1rem;border:1px solid var(--pxl-border);border-radius:14px;background:var(--pxl-surface)}
@media(max-width:980px){.pxl-course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.pxl-course-hero__grid,.pxl-course-layout,.pxl-learning-layout{grid-template-columns:1fr}.pxl-enroll-card,.pxl-lesson-sidebar{position:static;max-height:none}.pxl-lesson-sidebar{order:-1}.pxl-workbook-card{align-items:flex-start;flex-direction:column}.pxl-workbook-card .pxl-button{width:100%}}
@media(max-width:640px){.pxl-shell{width:min(100% - 24px,1320px)}.pxl-course-grid{grid-template-columns:1fr}.pxl-course-hero h1,.pxl-lesson-heading h1{font-size:clamp(2.3rem,12vw,3.6rem)}.pxl-lesson-heading{align-items:flex-start;flex-direction:column}.pxl-mini-progress{align-items:flex-start}.pxl-progress-card{grid-template-columns:1fr}.pxl-section-card li{grid-template-columns:34px 1fr}.pxl-section-card li small{grid-column:2}.pxl-lesson-actions{flex-direction:column}.pxl-lesson-actions .pxl-button,.pxl-lesson-actions form,.pxl-lesson-actions form button{width:100%}}
.pxl-assessment-card{margin:2rem 0;padding:1.4rem;border:1px solid var(--pxl-border);border-radius:var(--pxl-radius);background:#fff;box-shadow:0 10px 28px rgba(20,45,62,.06)}.pxl-assessment-card__head{display:flex;justify-content:space-between;gap:1rem;align-items:flex-start;margin-bottom:1rem}.pxl-assessment-card__head h2{margin:.15rem 0;font-size:clamp(1.7rem,2.4vw,2.35rem)}.pxl-pill{display:inline-flex;padding:.38rem .68rem;border-radius:999px;background:var(--pxl-surface);color:var(--pxl-primary);font-size:.78rem;font-weight:850;white-space:nowrap}.pxl-assessment-intro{line-height:1.75;color:var(--pxl-muted)}.pxl-question{margin:1.1rem 0;padding:1.1rem;border:1px solid var(--pxl-border);border-radius:14px}.pxl-question legend{display:flex;gap:.6rem;align-items:center;padding:0 .3rem;font-weight:850;max-width:100%}.pxl-question legend>span{display:inline-flex;flex:0 0 30px;width:30px;height:30px;align-items:center;justify-content:center;border-radius:50%;background:var(--pxl-primary);color:#fff}.pxl-question legend small{margin-left:auto;color:var(--pxl-muted);font-weight:650}.pxl-question__context{margin:.6rem 0 1rem;color:var(--pxl-muted);line-height:1.65}.pxl-question textarea,.pxl-question input[type=text],.pxl-assignment-form textarea,.pxl-assignment-form input[type=url],.pxl-assignment-form input[type=file]{width:100%;max-width:100%;padding:.75rem;border:1px solid var(--pxl-border);border-radius:10px;background:#fff}.pxl-choice{display:flex;gap:.7rem;align-items:flex-start;margin:.55rem 0;padding:.7rem .8rem;border:1px solid var(--pxl-border);border-radius:10px;cursor:pointer}.pxl-choice:hover{background:var(--pxl-surface)}.pxl-choice input{margin-top:.25rem}.pxl-quiz-timer{position:sticky;top:1rem;z-index:3;display:flex;justify-content:space-between;gap:1rem;margin-bottom:1rem;padding:.75rem 1rem;border:1px solid var(--pxl-border);border-radius:12px;background:#fff;box-shadow:0 8px 22px rgba(20,45,62,.08)}.pxl-quiz-timer span{font-variant-numeric:tabular-nums;font-weight:850}.pxl-result-row{display:grid;grid-template-columns:1fr auto auto;gap:1rem;align-items:center;margin:.8rem 0 1.2rem;padding:.8rem 1rem;border-radius:12px;background:var(--pxl-surface)}.pxl-notice.is-success{border-color:#b9dec7;background:#eef9f2}.pxl-grade{margin:1rem 0;padding:1rem;border-left:4px solid var(--pxl-accent);background:var(--pxl-surface)}.pxl-prereq-card,.pxl-certificate-card{margin:1rem 0 2rem;padding:1.25rem;border:1px solid var(--pxl-border);border-radius:16px;background:var(--pxl-surface)}.pxl-prereq-card h2,.pxl-certificate-card h2{margin:.2rem 0 .7rem}.pxl-prereq-card ul{margin-bottom:0}.pxl-certificate-card{display:flex;justify-content:space-between;gap:1.5rem;align-items:center;border-left:5px solid var(--pxl-accent)}.pxl-requirement-note{margin-left:auto;color:var(--pxl-muted);max-width:420px}.pxl-sidebar-locked{display:grid;grid-template-columns:20px 1fr;gap:.45rem;padding:.55rem .45rem;color:var(--pxl-muted);font-size:.9rem}.pxl-sidebar-locked small{grid-column:2;font-size:.72rem}.pxl-assignment-form small{color:var(--pxl-muted)}
@media(max-width:640px){.pxl-assessment-card__head,.pxl-certificate-card{flex-direction:column}.pxl-result-row{grid-template-columns:1fr}.pxl-question legend{align-items:flex-start;flex-wrap:wrap}.pxl-question legend small{width:100%;margin-left:38px}.pxl-requirement-note{margin-left:0}}
.pxl-review-notes{margin:1rem 0;padding:1rem;border:1px solid var(--pxl-border);border-radius:12px;background:var(--pxl-surface)}.pxl-review-notes summary{cursor:pointer;font-weight:850}.pxl-review-notes>div{padding:.8rem 0;border-top:1px solid var(--pxl-border)}.pxl-review-notes>div:first-of-type{margin-top:.8rem}.pxl-review-notes p{margin:.35rem 0;color:var(--pxl-muted);line-height:1.6}