/* Priority 2: product discovery, learning, and workspace experiences. */
.section-kicker{display:inline-block;color:var(--brand);font-size:.7rem;font-weight:800;letter-spacing:.13em;text-transform:uppercase}

/* Home */
.home-page .page-main{width:min(calc(100% - 2rem),1440px);padding-top:1rem}
.home-hero{position:relative;display:grid;min-height:680px;overflow:hidden;grid-template-columns:minmax(0,.88fr) minmax(480px,1.12fr);border-radius:2rem;background:linear-gradient(135deg,#f0f1ff,#ecfeff 65%,#fff8e8)}
.home-hero-copy{z-index:1;display:flex;padding:clamp(2rem,5vw,5rem);flex-direction:column;justify-content:center}
.home-hero h1{max-width:690px;margin:1rem 0 1.25rem;font-size:clamp(3rem,5.7vw,6.4rem);font-weight:800;line-height:.96;letter-spacing:-.065em}
.home-hero-copy>p{max-width:650px;color:var(--text-soft);font-size:clamp(1rem,1.3vw,1.15rem);line-height:1.8}
.hero-search{display:flex;width:min(100%,650px);min-height:62px;margin:1.4rem 0 1rem;padding:.4rem;align-items:center;border:1px solid var(--border);border-radius:1rem;background:var(--surface);box-shadow:var(--shadow-md)}
.hero-search svg,.catalog-search svg{width:21px;height:21px;margin-left:.75rem;flex:0 0 auto;fill:none;stroke:var(--muted);stroke-linecap:round;stroke-width:1.8}
.hero-search input{min-width:0;padding:0 .8rem;flex:1;border:0;outline:0;background:transparent;color:var(--text)}.hero-actions{display:flex;margin-top:.25rem;gap:.5rem}.trust-row{display:flex;margin-top:2rem;flex-wrap:wrap;gap:.5rem}.trust-row span{padding:.55rem .75rem;border:1px solid rgba(91,92,240,.12);border-radius:99px;background:rgba(255,255,255,.6);color:var(--muted);font-size:.72rem}.trust-row strong{color:var(--text)}
.home-hero-media{position:relative;min-height:680px;isolation:isolate}.home-hero-media::after{position:absolute;z-index:1;inset:0;background:linear-gradient(90deg,#eef1ff 0%,rgba(238,241,255,.8) 18%,transparent 42%);content:"";pointer-events:none}.home-hero-media>img{width:100%;height:100%;object-fit:cover}
.home-hero-3d{overflow:hidden;background:radial-gradient(circle at 62% 42%,rgba(91,92,240,.18),transparent 34%),linear-gradient(135deg,#edf3ff,#e7fbff 52%,#fff7e8)}
.home-hero-3d::before{position:absolute;z-index:0;inset:0;background:linear-gradient(120deg,rgba(15,23,42,.06),transparent 42%),radial-gradient(circle at 72% 18%,rgba(20,184,166,.28),transparent 26%);content:"";pointer-events:none}
.home-hero-fallback{position:absolute;z-index:0;inset:0;opacity:.22;filter:saturate(1.08) contrast(1.04)}
.learning-globe-canvas{position:absolute;z-index:1;inset:0;width:100%;height:100%;display:block;opacity:0;transition:opacity .35s ease}
.home-hero-3d.is-3d-ready .learning-globe-canvas{opacity:1}
.learning-globe-orbit{position:absolute;z-index:1;right:10%;top:17%;width:min(58vw,560px);aspect-ratio:1;border:1px solid rgba(91,92,240,.18);border-radius:50%;transform:rotateX(68deg) rotateZ(-20deg);box-shadow:0 0 55px rgba(91,92,240,.14);pointer-events:none}
.home-hero-3d.is-3d-ready .learning-globe-orbit{animation:hero-orbit-breathe 6s ease-in-out infinite}
@keyframes hero-orbit-breathe{0%,100%{opacity:.42;transform:rotateX(68deg) rotateZ(-20deg) scale(.98)}50%{opacity:.76;transform:rotateX(68deg) rotateZ(-12deg) scale(1.03)}}
.hero-float-card{position:absolute;z-index:2;padding:.9rem 1rem;border:1px solid rgba(255,255,255,.5);border-radius:1rem;background:rgba(255,255,255,.9);box-shadow:var(--shadow-md);backdrop-filter:blur(15px)}.hero-float-progress{right:7%;bottom:13%;display:grid;width:180px}.hero-float-progress span{color:var(--muted);font-size:.7rem}.hero-float-progress strong{font-size:1.3rem}.hero-float-progress div{height:5px;margin-top:.6rem;overflow:hidden;border-radius:99px;background:#e2e8f0}.hero-float-progress i{display:block;width:74%;height:100%;background:var(--brand)}.hero-float-class{top:13%;left:4%;display:flex;align-items:center;gap:.7rem}.hero-float-class div{display:grid}.hero-float-class small{color:var(--muted);font-size:.65rem}.live-dot{width:10px;height:10px;border-radius:50%;background:#ef4444;box-shadow:0 0 0 5px #fee2e2}
.home-section{padding:clamp(4rem,7vw,7rem) clamp(.25rem,2vw,2rem)}.section-heading{display:flex;margin-bottom:2rem;align-items:end;justify-content:space-between;gap:1rem}.section-heading h2,.outcomes-copy h2{max-width:720px;margin:.45rem 0 0;font-size:clamp(2rem,4vw,3.5rem);line-height:1.05}.section-heading>a{font-weight:750;text-decoration:none}
.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}.category-card{display:flex;min-height:118px;padding:1.25rem;align-items:center;gap:1rem;border:1px solid var(--border);border-radius:1.1rem;background:var(--surface);color:var(--text);text-decoration:none;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s}.category-card:hover{color:var(--text);transform:translateY(-4px);box-shadow:var(--shadow-md)}.category-icon{display:grid;width:52px;height:52px;place-items:center;border-radius:.9rem;background:var(--brand-soft);color:var(--brand);font-weight:800}.category-card div{display:grid;flex:1}.category-card small{margin-top:.3rem;color:var(--muted);font-size:.7rem}.category-card>span:last-child{color:var(--muted)}
.outcomes-section{display:grid;padding-inline:clamp(1.5rem,6vw,6rem);grid-template-columns:.8fr 1.2fr;gap:clamp(3rem,8vw,8rem);border-radius:2rem;background:#0f172a;color:#cbd5e1}.outcomes-copy h2{color:#fff}.outcomes-copy p{max-width:520px;margin:1.25rem 0 1.75rem;color:#94a3b8;line-height:1.8}.outcome-list{display:grid}.outcome-list article{display:flex;padding:1.6rem 0;gap:1.2rem;border-bottom:1px solid rgba(255,255,255,.1)}.outcome-list article:last-child{border:0}.outcome-list article>span{display:grid;width:42px;height:42px;flex:0 0 auto;place-items:center;border-radius:50%;background:rgba(91,92,240,.22);color:#c7d2fe;font-size:.7rem}.outcome-list h3{color:#fff;font-size:1.05rem}.outcome-list p{margin:0;color:#94a3b8;font-size:.85rem;line-height:1.65}
.credibility-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;padding-block:2rem;border:1px solid var(--border);border-radius:1.25rem;background:var(--border)}.credibility-strip div{display:grid;padding:1rem 2rem;background:var(--page);text-align:center}.credibility-strip strong{font-size:1.2rem}.credibility-strip span{margin-top:.3rem;color:var(--muted);font-size:.75rem}.home-cta{margin:4rem 0 1rem;padding:clamp(3rem,7vw,6rem);border-radius:2rem;background:linear-gradient(135deg,#4f46e5,#6d28d9 60%,#0891b2);color:#e0e7ff;text-align:center}.home-cta h2{margin:.65rem 0;color:#fff;font-size:clamp(2.2rem,5vw,4.3rem)}.home-cta p{color:#ddd6fe}.home-cta>div{display:flex;margin-top:1.5rem;justify-content:center;gap:.75rem}

/* Register */
.register-card{width:min(100%,620px)}.register-panel-wrap{padding-block:2rem}.role-selector{display:grid;margin:0 0 1rem;padding:0;grid-template-columns:1fr 1fr;gap:.7rem;border:0}.role-selector legend{margin-bottom:.5rem;font-size:.78rem;font-weight:750 ; grid-column: 1 / -1;}.role-option{position:relative;display:flex;padding:.8rem;align-items:center;gap:.7rem;border:1px solid var(--border-strong);border-radius:.85rem;cursor:pointer}.role-option:has(input:checked){border-color:var(--brand);background:var(--brand-soft);box-shadow:0 0 0 2px rgba(91,92,240,.1)}.role-option input{position:absolute;opacity:0}.role-option-icon{display:grid;width:34px;height:34px;place-items:center;border-radius:.65rem;background:var(--surface);color:var(--brand);font-size:.75rem;font-weight:800}.role-option>span:nth-of-type(2){display:grid;flex:1}.role-option small{color:var(--muted);font-size:.6rem}.role-option i{display:none;color:var(--brand);font-style:normal}.role-option:has(input:checked) i{display:block}.register-fields{display:grid;grid-template-columns:1fr 1fr;gap:0 1rem}.register-wide{grid-column:1/-1}.register-card .input-shell input{padding-inline:1rem}.password-toggle{width:auto;padding:0 .9rem;font-size:.7rem;font-weight:700}.password-strength{display:flex;margin-top:.4rem;align-items:center;gap:.25rem}.password-strength i{width:36px;height:3px;border-radius:99px;background:var(--border)}.password-strength span{margin-left:.3rem;color:var(--muted);font-size:.6rem}.password-strength[data-score="1"] i:nth-child(1){background:#f59e0b}.password-strength[data-score="2"] i:nth-child(-n+2){background:#0ea5e9}.password-strength[data-score="3"] i{background:#16a34a}
.student-registration-details{min-width:0;margin:0 0 1rem;padding:1rem 1rem 0;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface-subtle)}.student-registration-details[hidden]{display:none}.student-registration-details>legend{width:auto;margin:0;padding:0 .35rem;color:var(--text);font-size:.78rem;font-weight:800}.student-registration-details>p{margin:-.15rem 0 .8rem;color:var(--muted);font-size:.7rem}.student-registration-details .form-field{margin-bottom:1rem}

/* Catalog */
.courses-page .page-main{width:min(calc(100% - 2rem),1280px)}.catalog-header{display:flex;padding:clamp(1rem,4vw,3rem) 0 1.0rem;align-items:end;justify-content:space-between;gap:2rem}.catalog-header h1{margin:.6rem 0;font-size:clamp(2.6rem,6vw,5rem);letter-spacing:-.055em}.catalog-header p{max-width:650px;margin:0;color:var(--muted)}.catalog-search{display:flex;width:min(100%,430px);height:56px;align-items:center;border:1px solid var(--border);border-radius:.9rem;background:var(--surface);box-shadow:var(--shadow-sm)}.catalog-search input{min-width:0;padding:0 .75rem;flex:1;border:0;outline:0;background:transparent;color:var(--text)}.catalog-search kbd{margin-right:.7rem;border:1px solid var(--border);background:var(--surface-subtle);color:var(--muted)}
.catalog-controls{display:grid;padding:1rem;grid-template-columns:repeat(3,1fr) auto;align-items:end;gap:.8rem;border:1px solid var(--border);border-radius:1rem;background:var(--surface)}.filter-field{display:grid;gap:.35rem}.filter-field label{color:var(--muted);font-size:.65rem;font-weight:800;text-transform:uppercase}.btn-saved{border:1px solid var(--border);background:var(--surface-subtle);color:var(--text-soft)}.btn-saved[aria-pressed=true]{border-color:var(--brand);background:var(--brand-soft);color:var(--brand)}.mobile-filter-toggle{display:none}.catalog-summary{display:flex;padding:1.1rem 0;justify-content:space-between;color:var(--muted);font-size:.75rem}.catalog-summary p{margin:0;font-weight:700}.featured-wrap{display:grid;margin:1.2rem 0 2.5rem;overflow:hidden;grid-template-columns:minmax(360px,.85fr) 1.15fr;border:1px solid var(--border);border-radius:1.5rem;background:var(--surface);box-shadow:var(--shadow-md)}.featured-wrap[hidden]{display:none}.featured-wrap>img{width:100%;height:100%;min-height:370px;object-fit:cover}.featured-course-body{display:flex;padding:clamp(2rem,4vw,4rem);flex-direction:column;justify-content:center}.featured-course-body h2{margin:.7rem 0;font-size:clamp(2rem,4vw,3.3rem)}.featured-course-body>p{color:var(--muted);line-height:1.7}.featured-course-body>.btn{align-self:flex-start;margin-top:1.5rem}.course-chip-row{display:flex;min-height:23px;flex-wrap:wrap;gap:.4rem}.course-chip,.course-category-label{padding:.32rem .55rem;border-radius:99px;background:var(--brand-soft);color:var(--brand);font-size:.62rem;font-weight:800}.course-chip.is-enrolled{background:#dcfce7;color:#15803d}.catalog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}.catalog-grid .course-card{position:relative;min-width:0}.course-thumb-link{position:relative}.course-level-chip{position:absolute;bottom:.75rem;left:.75rem;padding:.35rem .55rem;border-radius:99px;background:rgba(15,23,42,.82);color:#fff;font-size:.62rem;font-weight:700;backdrop-filter:blur(8px)}.catalog-grid .wishlist-button{position:absolute;z-index:2;top:.75rem;right:.75rem;margin:0;border:0;box-shadow:var(--shadow-sm)}.course-instructor{display:flex;margin-top:auto;padding-top:1rem;align-items:center;gap:.65rem}.course-instructor>span{display:grid;width:34px;height:34px;place-items:center;border-radius:50%;background:var(--brand-soft);color:var(--brand);font-size:.7rem;font-weight:800}.course-instructor div{display:grid}.course-instructor strong{font-size:.72rem}.course-instructor small{color:var(--muted);font-size:.6rem}.course-card-stats{display:flex;padding:1rem 0;justify-content:space-between;border-bottom:1px solid var(--border);color:var(--muted);font-size:.66rem}.course-card-footer>strong{font-size:1.05rem}.catalog-empty{grid-column:1/-1;padding:5rem 1rem;text-align:center}.catalog-empty>span{color:var(--brand);font-size:3rem}.catalog-empty h2{margin-top:1rem}.catalog-empty p{color:var(--muted)}.course-skeleton{height:430px;overflow:hidden;border:1px solid var(--border);border-radius:1rem;background:var(--surface)}.course-skeleton i,.course-skeleton span{display:block;background:linear-gradient(90deg,var(--surface-subtle),var(--border),var(--surface-subtle));background-size:200% 100%;animation:skeleton 1.4s infinite}.course-skeleton i{height:210px}.course-skeleton span{height:14px;margin:1.2rem}.course-skeleton span:nth-child(3){width:70%}.course-skeleton span:nth-child(4){width:45%}@keyframes skeleton{to{background-position:-200% 0}}

/* 3D course card enhancement */
.catalog-grid{perspective:1200px}.catalog-grid .course-card{overflow:hidden;transform-style:preserve-3d;will-change:transform;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}.catalog-grid .course-card.is-tilting{border-color:color-mix(in srgb,var(--brand) 36%,var(--border));box-shadow:0 26px 60px rgba(15,23,42,.16)}.course-thumb-link{display:block;overflow:hidden;transform:translateZ(18px)}.course-card-image{width:100%;transition:transform .22s ease,filter .22s ease}.course-card.is-tilting .course-card-image{transform:scale(1.045);filter:saturate(1.08) contrast(1.03)}.course-level-chip{transform:translateZ(30px)}.catalog-grid .wishlist-button{transform:translateZ(38px);transition:transform .18s ease,box-shadow .18s ease}.catalog-grid .course-card.is-tilting .wishlist-button{box-shadow:0 14px 30px rgba(15,23,42,.18);transform:translateZ(46px) translateY(-2px)}.course-card-body{position:relative;z-index:1;transform:translateZ(14px)}

/* Course detail and classroom */
.course-page .page-main{width:min(calc(100% - 2rem),1280px)}.course-preview-banner{display:flex;margin-bottom:1rem;padding:.8rem 1rem;align-items:center;justify-content:space-between;gap:1rem;border:1px solid rgba(14,116,144,.28);border-radius:.75rem;background:#ecfeff;color:#164e63}.course-preview-banner div{display:grid}.course-preview-banner small{color:#0e7490;font-size:.7rem}.course-breadcrumb{display:flex;margin-bottom:1.2rem;gap:.55rem;color:var(--muted);font-size:.72rem}.course-breadcrumb a{text-decoration:none}.course-overview{display:grid;padding:clamp(1.5rem,4vw,3.5rem);grid-template-columns:1fr 380px;gap:clamp(2rem,6vw,6rem);border-radius:1.6rem;background:linear-gradient(135deg,#10172b,#22205a);color:#cbd5e1}.course-overview h1{max-width:780px;margin:1rem 0;color:#fff;font-size:clamp(2.5rem,5vw,4.7rem);line-height:1}.course-overview-copy>p{max-width:750px;color:#cbd5e1;line-height:1.75}.course-author-line{display:flex;margin-top:1.5rem;align-items:center;gap:.7rem}.course-author-line>span{display:grid;width:40px;height:40px;place-items:center;border-radius:50%;background:#6366f1;color:#fff;font-weight:800}.course-author-line div{display:grid}.course-author-line small{color:#94a3b8}.course-author-line strong{color:#fff}.course-facts{display:flex;margin-top:2rem;gap:2rem}.course-facts span{display:grid}.course-facts strong{color:#fff}.course-facts small{color:#94a3b8;font-size:.62rem}.course-enroll-card{align-self:start;overflow:hidden;border-radius:1rem;background:var(--surface);box-shadow:0 25px 60px rgba(0,0,0,.3);color:var(--text)}.course-enroll-card img{width:100%;aspect-ratio:16/9;object-fit:cover}.course-enroll-card>div{padding:1.4rem}.enroll-price{font-size:1.6rem;font-weight:800}.course-enroll-card p{margin:.7rem 0;color:var(--muted);font-size:.75rem;line-height:1.6}.course-enroll-card small{display:block;margin-top:.7rem;color:var(--muted);font-size:.62rem;text-align:center}.course-value-grid{display:grid;margin:1.2rem 0 2.5rem;grid-template-columns:repeat(3,1fr);gap:1rem}.course-value-grid article{display:flex;padding:1rem;align-items:center;gap:.8rem;border:1px solid var(--border);border-radius:.9rem;background:var(--surface)}.course-value-grid article>span{display:grid;width:36px;height:36px;place-items:center;border-radius:.65rem;background:var(--brand-soft);color:var(--brand)}.course-value-grid article div{display:grid}.course-value-grid small{color:var(--muted);font-size:.65rem}.learning-progress-strip{display:grid;margin-bottom:1.2rem;padding:1rem 1.25rem;grid-template-columns:170px 1fr;align-items:center;gap:1rem;border:1px solid var(--border);border-radius:.9rem;background:var(--surface)}.learning-progress-strip>div:first-child{display:flex;align-items:center;justify-content:space-between}.learning-progress-strip span{color:var(--muted);font-size:.7rem}.learning-progress-strip .progress-number{font-size:1.15rem}.learning-workspace{display:grid;grid-template-columns:330px 1fr;align-items:start;gap:1.25rem}.learning-sidebar{position:sticky;top:calc(var(--header-height) + 1rem);padding:1.2rem;border:1px solid var(--border);border-radius:1rem;background:var(--surface)}.learning-sidebar-heading{display:flex;margin-bottom:1rem;align-items:end;justify-content:space-between;gap:.5rem}.learning-sidebar-heading h2{margin:.25rem 0 0;font-size:1.05rem}.learning-sidebar-heading>span{color:var(--muted);font-size:.6rem}.lesson-workspace-card .learning-empty{display:grid;min-height:350px;place-content:center;text-align:center}.lesson-workspace-card .learning-empty span{margin-top:.4rem;color:var(--muted)}.learning-status-grid{display:grid;margin-top:1.25rem;grid-template-columns:1fr 1fr;gap:1.25rem}.learning-status-grid h2{margin:.35rem 0 1rem;font-size:1.15rem}

/* Enrolled students use a focused course view instead of sales actions. */
.course-learner-panel{display:grid;gap:.75rem}.course-learner-panel h2{margin:0;font-size:1.25rem}.course-learner-panel p{margin:0}.learner-panel-progress{display:grid;grid-template-columns:1fr 1fr;gap:.6rem}.learner-panel-progress>div{display:grid;padding:.7rem;border:1px solid var(--border);border-radius:.7rem;background:var(--surface-subtle)}.learner-panel-progress strong{font-size:1rem}.learner-panel-progress small{margin:0!important;text-align:left!important}.learning-shell.is-learner-mode .course-value-grid,.learning-shell.is-learner-mode .course-sales-grid{display:none}.learning-shell.is-learner-mode .course-overview{padding-block:clamp(1.35rem,3vw,2.4rem)}.learning-shell.is-learner-mode .learning-progress-strip{margin-top:1.2rem}.learning-sidebar-heading #course-roadmap-summary{display:block;margin-top:.28rem;color:var(--muted);font-size:.62rem}.lesson-item.is-complete .lesson-index{background:var(--success-surface,#dcfce7);color:var(--success-text,#166534)}.lesson-item.is-next{border-color:color-mix(in srgb,var(--brand) 48%,var(--border));box-shadow:0 0 0 2px color-mix(in srgb,var(--brand) 14%,transparent)}

/* Student and instructor workspaces */
.dashboard-heading{display:flex;margin-bottom:2rem;align-items:end;justify-content:space-between;gap:1rem}.dashboard-heading h1{margin:0 0 .45rem;font-size:clamp(2.2rem,4vw,3.5rem)}.dashboard-heading-actions{display:flex;align-items:center;gap:.7rem}.role-pill{padding:.5rem .7rem;border-radius:99px;background:var(--brand-soft);color:var(--brand);font-size:.67rem;font-weight:800}.student-metrics{display:grid;margin-bottom:1.25rem;grid-template-columns:repeat(4,1fr);gap:1rem}.student-metrics article{display:flex;padding:1.15rem;align-items:center;gap:.9rem;border:1px solid var(--border);border-radius:1rem;background:var(--surface);box-shadow:var(--shadow-sm)}.metric-symbol{display:grid;width:42px;height:42px;place-items:center;border-radius:.75rem;background:var(--brand-soft);color:var(--brand);font-weight:800}.student-metrics article div{display:grid;grid-template-columns:1fr auto}.student-metrics small{color:var(--muted);font-size:.65rem}.student-metrics strong{grid-row:1/3;grid-column:2;font-size:1.7rem}.student-metrics p{margin:0;color:var(--muted);font-size:.62rem}.student-dashboard-grid{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(320px,.55fr);align-items:start;gap:1.25rem}.student-dashboard-side{display:grid;gap:1.25rem}.dashboard-section{padding:1.4rem;border:1px solid var(--border);border-radius:1.1rem;background:var(--surface);box-shadow:var(--shadow-sm)}.dashboard-section-heading{display:flex;margin-bottom:1.25rem;align-items:end;justify-content:space-between}.dashboard-section-heading h2{margin:.3rem 0 0;font-size:1.3rem}.dashboard-section-heading>a{font-size:.72rem;font-weight:750;text-decoration:none}.continue-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.continue-card{overflow:hidden;border:1px solid var(--border);border-radius:.9rem;background:var(--surface-subtle)}.continue-thumb{display:flex;min-height:130px;padding:.7rem;align-items:flex-start;justify-content:flex-end;background:linear-gradient(135deg,#312e81,#0e7490);background-position:center;background-size:cover}.continue-thumb span{padding:.35rem .55rem;border-radius:99px;background:rgba(15,23,42,.75);color:#fff;font-size:.62rem;font-weight:800}.continue-body{padding:1rem}.continue-body>small{color:var(--brand);font-size:.6rem;font-weight:800;text-transform:uppercase}.continue-body h3{margin:.4rem 0;font-size:1rem}.continue-body p{min-height:42px;color:var(--muted);font-size:.7rem}.continue-body .progress{height:6px}.continue-footer{display:flex;margin-top:.8rem;align-items:center;justify-content:space-between}.continue-footer>span{color:var(--muted);font-size:.62rem}.dashboard-empty{padding:4rem 1rem;text-align:center}.dashboard-empty>span{color:var(--brand);font-size:2.5rem}.dashboard-empty p,.mini-empty{color:var(--muted)}.timeline-list,.notification-timeline{display:grid}.timeline-list>a{display:grid;padding:.85rem 0;grid-template-columns:46px 1fr auto;align-items:center;gap:.75rem;border-bottom:1px solid var(--border);color:var(--text);text-decoration:none}.timeline-list time{display:grid;padding:.35rem;place-items:center;border-radius:.6rem;background:var(--brand-soft);color:var(--brand)}.timeline-list time strong{font-size:1rem}.timeline-list time span{font-size:.55rem;text-transform:uppercase}.timeline-list a>div{display:grid}.timeline-list small{margin-top:.2rem;color:var(--muted);font-size:.58rem}.notification-timeline>div{display:flex;padding:.8rem 0;gap:.7rem;border-bottom:1px solid var(--border)}.notification-timeline i{width:8px;height:8px;margin-top:.35rem;border-radius:50%;background:var(--border-strong)}.notification-timeline .is-unread i{background:var(--brand)}.notification-timeline p{display:grid;margin:0}.notification-timeline small{margin-top:.2rem;color:var(--muted);font-size:.58rem}.instructor-workspace{display:grid;grid-template-columns:210px minmax(0,1fr);align-items:start;gap:1.25rem}.instructor-sidebar{position:sticky;top:calc(var(--header-height) + 1rem);display:flex;padding:.65rem;flex-direction:column;border:1px solid var(--border);border-radius:1rem;background:var(--surface)}.instructor-sidebar .nav-link{width:100%;padding:.75rem;text-align:left}.instructor-sidebar .nav-link.active{border:0;background:var(--brand-soft);color:var(--brand)}.instructor-workspace>.tab-content{min-width:0}.dashboard-panel{overflow:hidden}

/* Admin */
.admin-page .page-main{width:min(calc(100% - 1.5rem),1500px)}.admin-heading{display:flex;margin-bottom:1.5rem;align-items:end;justify-content:space-between}.admin-heading h1{margin:.3rem 0;font-size:clamp(2.2rem,4vw,3.5rem)}.admin-heading p{margin:0;color:var(--muted)}.admin-stat-card{min-height:125px;background:var(--surface)!important;color:var(--text)!important}.admin-stat-card h6{color:var(--muted)!important}.admin-stat-card h2{color:var(--text)!important}.admin-stat-card::before{position:absolute;top:0;bottom:0;left:0;width:4px;border-radius:1rem 0 0 1rem;background:var(--brand);content:""}.admin-stat-card.is-attention::before{background:#f59e0b}.admin-workspace{display:grid;grid-template-columns:230px minmax(0,1fr);align-items:start;gap:1.25rem}.admin-sidebar{position:sticky;top:calc(var(--header-height) + 1rem);display:flex;max-height:calc(100vh - var(--header-height) - 2rem);padding:.65rem;overflow-y:auto;flex-direction:column;border:1px solid var(--border);border-radius:1rem;background:var(--surface)}.admin-sidebar .nav-link{width:100%;padding:.7rem .75rem;border:0;text-align:left}.admin-sidebar .nav-link.active{border:0;border-radius:.65rem;background:var(--brand-soft);color:var(--brand)}.admin-workspace>.tab-content{min-width:0;padding:1.25rem;border:1px solid var(--border);border-radius:1rem;background:var(--surface);box-shadow:var(--shadow-sm)}.admin-page table thead{position:sticky;z-index:1;top:0}.admin-page .table-responsive{border:1px solid var(--border);border-radius:.8rem}.admin-page .table{margin:0}.admin-page .table>:not(caption)>*>*{padding:.8rem}

@media(max-width:1100px){.home-hero{grid-template-columns:1fr 1fr}.home-hero h1{font-size:clamp(3rem,6vw,5rem)}.category-grid{grid-template-columns:1fr 1fr}.catalog-grid{grid-template-columns:1fr 1fr}.course-overview{grid-template-columns:1fr 330px}.student-metrics{grid-template-columns:1fr 1fr}.student-dashboard-grid{grid-template-columns:1fr}.student-dashboard-side{grid-template-columns:1fr 1fr}}
@media(max-width:991.98px){.home-hero{display:flex;min-height:auto;flex-direction:column}.home-hero-media{min-height:480px;order:-1}.home-hero-media::after{background:linear-gradient(0deg,#eef1ff,transparent 35%)}.outcomes-section{grid-template-columns:1fr}.featured-wrap{grid-template-columns:1fr}.featured-wrap>img{max-height:400px}.course-overview{grid-template-columns:1fr}.course-enroll-card{max-width:560px}.learning-workspace{grid-template-columns:1fr}.learning-sidebar{position:static}.instructor-workspace,.admin-workspace{grid-template-columns:1fr}.instructor-sidebar,.admin-sidebar{position:static;display:flex;max-height:none;overflow-x:auto;flex-direction:row;flex-wrap:nowrap}.instructor-sidebar .nav-item,.admin-sidebar .nav-item{flex:0 0 auto}.instructor-sidebar .nav-link,.admin-sidebar .nav-link{white-space:nowrap}.admin-workspace>.tab-content{padding:1rem}}
@media(max-width:991.98px){.admin-sidebar{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));overflow:visible;gap:.45rem}.admin-sidebar .nav-item{min-width:0}.admin-sidebar .nav-link{display:flex;width:100%;min-height:44px;align-items:center;justify-content:center;white-space:normal;text-align:center;line-height:1.2}.admin-workspace{gap:.9rem}.admin-workspace>.tab-content{overflow:visible}}
@media(max-width:575.98px){.admin-sidebar{grid-template-columns:repeat(2,minmax(0,1fr));padding:.5rem}.admin-sidebar .nav-link{padding:.62rem .5rem;font-size:.72rem}.admin-workspace>.tab-content{padding:.75rem}.admin-page .table-responsive{max-width:100%;overflow-x:auto}}
@media(max-width:379.98px){.admin-sidebar{grid-template-columns:1fr}}
@media(max-width:767.98px){.home-page .page-main{width:min(calc(100% - 1rem),1440px)}.home-hero-media{min-height:360px}.home-hero-copy{padding:1.5rem}.home-hero h1{font-size:2.7rem}.hero-search{min-height:54px}.hero-search .btn{padding-inline:.7rem}.trust-row{margin-top:1.2rem}.category-grid,.credibility-strip,.catalog-grid,.course-value-grid,.learning-status-grid,.continue-grid,.student-dashboard-side{grid-template-columns:1fr}.outcomes-section{padding:2rem}.home-cta>div,.hero-actions{flex-direction:column}.catalog-header{align-items:stretch;flex-direction:column}.catalog-search{width:100%}.mobile-filter-toggle{display:block;width:100%;margin-bottom:.75rem}.catalog-controls{display:none;grid-template-columns:1fr}.catalog-controls.is-open{display:grid}.catalog-summary>span{display:none}.featured-wrap>img{min-height:240px}.course-overview{padding:1.25rem}.course-overview h1{font-size:2.5rem}.course-facts{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.learning-progress-strip{grid-template-columns:1fr}.dashboard-heading,.admin-heading{align-items:flex-start;flex-direction:column}.student-metrics{grid-template-columns:1fr 1fr}.student-dashboard-side{display:grid}.register-fields,.role-selector{grid-template-columns:1fr}.register-wide{grid-column:auto}.register-panel-wrap{padding-top:5rem}.admin-page .page-main{width:min(calc(100% - .75rem),1500px)}}
@media(max-width:479.98px){.student-metrics{grid-template-columns:1fr}.course-facts{grid-template-columns:1fr}.home-hero-media{min-height:290px}.hero-float-card{display:none}.category-grid{grid-template-columns:1fr}.catalog-header h1{font-size:2.5rem}}

.mobile-enroll-cta{display:none}.mobile-enroll-cta.is-hidden{display:none!important}
.dark-mode .home-hero{background:linear-gradient(135deg,#121a30,#17213d 60%,#132c35)}
.dark-mode .home-hero-media::after{background:linear-gradient(90deg,#121a30 0%,transparent 30%)}
.dark-mode .home-hero-3d{background:radial-gradient(circle at 62% 42%,rgba(129,140,248,.24),transparent 34%),linear-gradient(135deg,#101827,#112336 52%,#1f2937)}
.dark-mode .home-hero-fallback{opacity:.12}
.dark-mode .trust-row span{border-color:rgba(255,255,255,.08);background:rgba(15,23,42,.55)}
.dark-mode .credibility-strip{background:var(--border)}.dark-mode .credibility-strip div{background:var(--page)}
.dark-mode .role-option-icon{background:var(--surface-subtle)}.dark-mode .course-enroll-card{background:var(--surface)}
@media(max-width:767.98px){.course-page .page-main{padding-bottom:6rem}.mobile-enroll-cta{position:fixed;z-index:1035;right:.75rem;bottom:.75rem;left:.75rem;display:flex;padding:.65rem .7rem;align-items:center;justify-content:space-between;gap:1rem;border:1px solid var(--border);border-radius:1rem;background:color-mix(in srgb,var(--surface) 94%,transparent);box-shadow:0 16px 45px rgba(15,23,42,.24);backdrop-filter:blur(16px)}.mobile-enroll-cta>span{display:grid}.mobile-enroll-cta small{color:var(--muted);font-size:.58rem}.mobile-enroll-cta strong{font-size:1rem}}

.student-hero-panel{display:flex;margin-bottom:1.25rem;padding:clamp(1.25rem,3vw,2rem);align-items:center;justify-content:space-between;gap:1rem;border:1px solid color-mix(in srgb,var(--brand) 20%,var(--border));border-radius:1.25rem;background:linear-gradient(135deg,color-mix(in srgb,var(--brand-soft) 92%,white),var(--surface));box-shadow:var(--shadow-sm)}.student-hero-panel h2{margin:.3rem 0;font-size:clamp(1.7rem,3vw,2.55rem)}.student-hero-panel p{max-width:680px;margin:0;color:var(--muted)}.student-hero-actions{display:flex;flex-wrap:wrap;gap:.7rem}.quick-actions-section{margin-top:1.25rem}.student-action-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:.9rem}.student-action-grid a{display:grid;padding:1rem;gap:.25rem;border:1px solid var(--border);border-radius:.9rem;background:var(--surface-subtle);color:var(--text);text-decoration:none;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.student-action-grid a:hover{transform:translateY(-2px);border-color:color-mix(in srgb,var(--brand) 45%,var(--border));box-shadow:var(--shadow-sm)}.student-action-grid span{font-size:1.35rem}.student-action-grid small{color:var(--muted);font-size:.62rem}.course-sales-hero{position:relative;overflow:hidden}.course-sales-hero::before{content:"";position:absolute;inset:-35% -20% auto auto;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(99,102,241,.35),transparent 70%);pointer-events:none}.course-hero-actions{display:flex;flex-wrap:wrap;margin-top:1.4rem;gap:.75rem}.course-checklist{display:grid;margin:1rem 0 0;padding:0;gap:.45rem;list-style:none;color:var(--muted);font-size:.72rem}.course-checklist li::before{content:"✓";display:inline-grid;width:18px;height:18px;margin-right:.45rem;place-items:center;border-radius:50%;background:var(--brand-soft);color:var(--brand);font-size:.65rem;font-weight:800}.course-sales-grid{display:grid;margin:0 0 1.25rem;grid-template-columns:1.1fr .9fr;gap:1rem}.course-sales-panel{padding:1.25rem;border:1px solid var(--border);border-radius:1rem;background:var(--surface);box-shadow:var(--shadow-sm)}.course-sales-panel h2{margin:.3rem 0 1rem;font-size:1.25rem}.course-outcome-list,.course-support-list{display:grid;gap:.75rem}.course-outcome-list>div,.course-support-list>div{display:flex;padding:.85rem;gap:.75rem;border:1px solid var(--border);border-radius:.85rem;background:var(--surface-subtle)}.course-outcome-list span{display:grid;flex:0 0 28px;width:28px;height:28px;place-items:center;border-radius:.55rem;background:var(--brand-soft);color:var(--brand);font-weight:900}.course-outcome-list p,.course-support-list small{margin:0;color:var(--muted)}.course-support-list>div{display:grid}.course-support-list strong{font-size:.9rem}

@media(max-width:991.98px){.student-hero-panel{align-items:flex-start;flex-direction:column}.student-action-grid,.course-sales-grid{grid-template-columns:1fr 1fr}}
@media(max-width:767.98px){.student-action-grid,.course-sales-grid{grid-template-columns:1fr}.student-hero-actions{width:100%}.student-hero-actions .btn{flex:1 1 auto}.course-hero-actions{display:none}}

/* Search, certificate verification, and touch video controls */
.lesson-search-matches{display:grid;margin:.75rem 0;padding:.65rem;border-radius:.7rem;background:var(--surface-subtle);gap:.3rem}.lesson-search-matches small{color:var(--muted);font-size:.6rem;font-weight:800;text-transform:uppercase}.lesson-search-matches a{font-size:.7rem;font-weight:700;text-decoration:none}.verification-shell{width:min(100%,850px);margin-inline:auto}.verification-heading{margin-bottom:1.5rem;text-align:center}.verification-heading h1{margin:.5rem 0;font-size:clamp(2.3rem,5vw,4rem)}.verification-heading p{color:var(--muted)}.certificate-search{padding:1.25rem}.certificate-result{display:grid;margin-top:1.5rem;padding:2rem;grid-template-columns:70px 1fr;gap:1.25rem}.verification-mark{display:grid;width:64px;height:64px;place-items:center;border-radius:50%;background:#dcfce7;color:#15803d;font-size:2rem;font-weight:900}.certificate-result h2{margin:.7rem 0}.certificate-result dl{display:grid;margin:1rem 0 0;grid-template-columns:1fr 1fr;gap:1rem}.certificate-result dl div{padding:.75rem;border-radius:.7rem;background:var(--surface-subtle)}.certificate-result dt{color:var(--muted);font-size:.62rem;text-transform:uppercase}.certificate-result dd{margin:.2rem 0 0;font-weight:750}.mobile-video-controls{display:none}
.video-download-row{display:flex;padding:.55rem .75rem;justify-content:flex-end;border-top:1px solid #334155;background:#0f172a}
@media(max-width:767.98px){.mobile-video-controls{display:grid;padding:.55rem;grid-template-columns:repeat(5,1fr);gap:.4rem;background:#0f172a}.mobile-video-controls button{min-height:44px;padding:.4rem;border:1px solid #334155;border-radius:.6rem;background:#1e293b;color:#fff;font-size:.68rem;font-weight:800;touch-action:manipulation}.lesson-video{max-height:70svh}.certificate-result{grid-template-columns:1fr}.certificate-result dl{grid-template-columns:1fr}}

/* Timed board-test workspace */
.test-attempt-page .page-main{width:min(calc(100% - 2rem),1380px)}.exam-shell{padding:1.5rem 0 3rem}.exam-loading{padding:5rem 1rem;color:var(--muted);text-align:center}.exam-header{display:flex;margin-bottom:1rem;padding:1.4rem 1.5rem;align-items:flex-start;justify-content:space-between;gap:1.5rem;border:1px solid color-mix(in srgb,var(--brand) 26%,var(--border));border-radius:1.15rem;background:linear-gradient(135deg,var(--surface),var(--brand-soft));box-shadow:var(--shadow-sm)}.exam-back{display:inline-block;margin-bottom:.7rem;color:var(--muted);font-size:.75rem;font-weight:750;text-decoration:none}.exam-back:hover{color:var(--brand)}.exam-header h1{max-width:850px;margin:0;font-size:clamp(1.35rem,3vw,2.25rem)}.exam-meta{margin:.45rem 0 0;color:var(--muted);font-size:.78rem}.exam-timer-card{display:grid;min-width:145px;padding:.75rem;gap:.15rem;border:1px solid var(--border);border-radius:.85rem;background:var(--surface);text-align:center}.exam-timer-card small,.exam-timer-card span{color:var(--muted);font-size:.62rem;font-weight:750}.exam-timer-card strong{font-variant-numeric:tabular-nums;font-size:1.35rem}.exam-timer-card strong.is-ending{color:#dc2626}.exam-instructions{margin-bottom:1rem;padding:1rem;border:1px solid var(--border);border-radius:.9rem;background:var(--surface)}.exam-instructions>div{margin-top:.75rem;white-space:pre-line;color:var(--text-soft);font-size:.78rem;line-height:1.7}.exam-layout{display:grid;grid-template-columns:245px minmax(0,1fr);align-items:start;gap:1.25rem}.exam-palette{position:sticky;top:calc(var(--header-height) + 1rem);padding:1rem;border:1px solid var(--border);border-radius:1rem;background:var(--surface);box-shadow:var(--shadow-sm)}.exam-palette-heading{display:flex;margin-bottom:.85rem;align-items:center;justify-content:space-between;gap:.5rem}.exam-palette-heading strong{font-size:.9rem}.exam-palette-heading span{color:var(--muted);font-size:.62rem}.exam-palette-buttons{display:grid;margin-bottom:1rem;grid-template-columns:repeat(5,1fr);gap:.45rem}.exam-question-number{min-width:0;aspect-ratio:1;padding:0;border:1px solid var(--border);border-radius:.5rem;background:var(--surface-subtle);color:var(--text);font-size:.68rem;font-weight:800}.exam-question-number.is-current{outline:2px solid var(--brand);outline-offset:1px}.exam-question-number.is-answered{border-color:#22c55e;background:#dcfce7;color:#166534}.exam-question-number.is-flagged{box-shadow:inset 0 3px 0 #f59e0b}.exam-legend{display:grid;margin-bottom:1rem;gap:.4rem}.exam-legend span{display:flex;align-items:center;gap:.4rem;color:var(--muted);font-size:.6rem}.exam-legend i{width:10px;height:10px;border:1px solid var(--border);border-radius:3px;background:var(--surface-subtle)}.exam-legend .is-current{outline:1px solid var(--brand)}.exam-legend .is-answered{border-color:#22c55e;background:#dcfce7}.exam-legend .is-flagged{border-top:3px solid #f59e0b}.exam-question-card{min-height:560px;padding:clamp(1.25rem,3vw,2.25rem);border:1px solid var(--border);border-radius:1rem;background:var(--surface);box-shadow:var(--shadow-sm)}.exam-question-heading{display:flex;margin-bottom:1.5rem;align-items:center;justify-content:space-between;gap:1rem}.exam-question-heading span{padding:.35rem .55rem;border-radius:99px;background:var(--surface-subtle);color:var(--muted);font-size:.63rem;font-weight:800}.exam-question-text{min-height:150px;white-space:pre-wrap;color:var(--text);font-size:clamp(.95rem,1.5vw,1.08rem);line-height:1.85}.exam-question-text mjx-container[display="true"]{overflow-x:auto;overflow-y:hidden}.exam-answer{margin-top:1.5rem}.exam-options{display:grid;gap:.75rem}.exam-option{display:flex;min-height:52px;padding:.75rem 1rem;align-items:center;gap:.75rem;border:1px solid var(--border);border-radius:.75rem;background:var(--surface-subtle);cursor:pointer;transition:border-color .15s ease,background .15s ease}.exam-option:has(input:checked){border-color:var(--brand);background:var(--brand-soft)}.exam-option input{width:18px;height:18px;flex:0 0 auto}.exam-written-answer{min-height:165px;resize:vertical;line-height:1.7}.exam-question-actions{display:flex;margin-top:2rem;padding-top:1rem;align-items:center;justify-content:space-between;gap:.75rem;border-top:1px solid var(--border)}.exam-question-actions .active{border-color:#f59e0b;background:#fffbeb;color:#92400e}.exam-result{max-width:760px;margin:2rem auto;padding:clamp(1.5rem,5vw,3.25rem);border:1px solid color-mix(in srgb,var(--brand) 28%,var(--border));border-radius:1.25rem;background:linear-gradient(135deg,var(--surface),var(--brand-soft));text-align:center;box-shadow:var(--shadow-md)}.exam-result h1{margin:.5rem 0 1rem;font-size:clamp(1.6rem,4vw,2.7rem)}.exam-result>p{color:var(--muted)}.exam-result-metrics{display:grid;margin:1.5rem 0;grid-template-columns:repeat(2,1fr);gap:.8rem}.exam-result-metrics>div{display:grid;padding:1rem;border:1px solid var(--border);border-radius:.85rem;background:var(--surface)}.exam-result-metrics small{color:var(--muted);font-size:.65rem}.exam-result-metrics strong{margin-top:.2rem;font-size:1.5rem}
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/* Student learning review, filters, and responsive classroom polish */
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@media(max-width:991.98px){.learning-sidebar{max-height:none}.lesson-list{display:grid;max-height:56svh;overflow:auto;overscroll-behavior:contain}.tool-filter-grid,.learning-hub-grid,.learning-hub-bottom{grid-template-columns:1fr}.dashboard-heading-actions{width:100%;flex-wrap:wrap}.dashboard-heading-actions .btn{flex:1 1 auto}.forum-reply div{display:grid}.quiz-review-panel .status-item{align-items:flex-start;flex-direction:column}.quiz-form .btn{width:100%}}
@media(max-width:575.98px){.lesson-list{max-height:44svh}.lesson-item{min-height:58px}.learning-sidebar{padding:.85rem}.learning-status-grid .card-body{padding:1rem}.quiz-option{padding:.7rem .75rem .7rem 2.25rem}.status-item{align-items:flex-start;gap:.75rem}.status-item .btn{white-space:normal}.price-preview{font-size:.7rem}}

/* Board-paper library */
.test-series-workspace{margin:0 0 1.25rem;padding:clamp(1.15rem,3vw,2rem);border:1px solid color-mix(in srgb,var(--brand) 26%,var(--border));border-radius:1.2rem;background:linear-gradient(145deg,var(--surface),color-mix(in srgb,var(--brand-soft) 55%,var(--surface)));box-shadow:var(--shadow-sm)}.test-series-heading{display:flex;margin-bottom:1.5rem;align-items:end;justify-content:space-between;gap:1.5rem}.test-series-heading h2{max-width:700px;margin:.35rem 0 .45rem;font-size:clamp(1.4rem,2.8vw,2.15rem)}.test-series-heading p{max-width:740px;margin:0;color:var(--muted);font-size:.82rem;line-height:1.65}.test-series-summary{display:grid;min-width:260px;grid-template-columns:repeat(3,1fr);gap:.55rem}.test-series-summary>div{display:grid;padding:.7rem .55rem;place-items:center;border:1px solid var(--border);border-radius:.7rem;background:var(--surface);text-align:center}.test-series-summary strong{font-size:1.15rem}.test-series-summary 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/* Instructor test evaluation */
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