.cex-fullscreen-page{display:flex;min-height:100vh;height:100vh;flex-direction:column;overflow:hidden;background:#f9fafb;color:#0f172a;font-family:ui-sans-serif,system-ui,sans-serif,"Apple Color Emoji","Segoe UI Emoji",Segoe UI Symbol,"Noto Color Emoji"}.cex-top-nav{display:flex;min-height:64px;align-items:center;justify-content:space-between;gap:18px;border-bottom:1px solid #e2e8f0;background:#ffffffdb;padding:0 32px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.cex-top-nav-left,.cex-top-nav-actions,.cex-stepper,.cex-stepper-button,.cex-nav-back{display:inline-flex;align-items:center}.cex-top-nav-left{min-width:0;gap:16px}.cex-brand-link{display:inline-flex;flex-shrink:0;align-items:center;justify-content:center}.cex-brand-link img{height:32px;width:32px}.cex-top-nav-breadcrumbs{min-width:0}.cex-top-nav-breadcrumbs nav{display:flex;min-width:0;align-items:center;gap:8px;overflow:hidden;color:#475569;font-size:14px;font-weight:700;white-space:nowrap}.cex-top-nav-breadcrumbs a{color:#475569;text-decoration:none}.cex-top-nav-breadcrumbs a:hover{color:#0f172a}.cex-top-nav-breadcrumbs strong{overflow:hidden;color:#0f172a;font-weight:700;text-overflow:ellipsis}.cex-nav-back{gap:7px;min-height:36px;padding:0 10px;border-radius:6px;color:#475569;font-size:14px;font-weight:700;text-decoration:none}.cex-nav-back:hover,.cex-stepper-button:hover:not(:disabled){background:#f1f5f9;color:#0f172a}.cex-top-nav-title{display:grid;min-width:0;gap:2px}.cex-top-nav-title span{overflow:hidden;color:#64748b;font-size:12px;font-weight:700;text-overflow:ellipsis;text-transform:uppercase;white-space:nowrap}.cex-top-nav-title strong{overflow:hidden;color:#111827;font-size:16px;font-weight:700;text-overflow:ellipsis;white-space:nowrap}.cex-top-nav-spacer{flex:1}.cex-top-nav-progress{display:flex;min-width:240px;max-width:540px;flex:1;flex-direction:column;align-items:center;justify-content:center;gap:4px}.cex-top-nav-progress-label{color:#475569;font-size:12px;font-weight:700}.cex-progress-meter{width:min(100%,520px);height:8px;overflow:hidden;border-radius:999px;background:#e2e8f0}.cex-progress-meter span{display:block;height:100%;border-radius:inherit;background:#2563eb;transition:width .3s ease}.cex-top-nav-progress-pill{display:inline-flex;min-height:32px;align-items:center;border-radius:999px;background:#f1f5f9;color:#475569;padding:0 12px;font-size:13px;font-weight:700;white-space:nowrap}.cex-top-nav-actions{flex-wrap:wrap;justify-content:flex-end;gap:10px}.cex-stepper{overflow:hidden;border:1px solid #e2e8f0;border-radius:6px;background:#fff}.cex-stepper-button{gap:5px;min-height:34px;border:0;background:transparent;color:#334155;cursor:pointer;font:inherit;font-size:13px;font-weight:700;padding:0 10px;text-decoration:none}.cex-stepper-button:disabled{color:#94a3b8;cursor:not-allowed}.cex-stepper-count{display:inline-flex;min-width:48px;min-height:34px;align-items:center;justify-content:center;border-inline:1px solid #d7dfeb;color:#64748b;font-size:13px;font-weight:700;text-align:center}.cex-set-layout{display:grid;flex:1;min-height:0;grid-template-columns:minmax(320px,35%) minmax(0,65%);overflow:hidden}.cex-set-info{display:flex;min-height:0;flex-direction:column;overflow:auto;border-right:1px solid #e2e8f0;background:#fff}.cex-set-info-main{display:grid;gap:32px;padding:32px}.cex-set-title-block{display:grid;gap:16px}.cex-set-title-block h1{margin:0;color:#0f172a;font-size:36px;font-weight:700;letter-spacing:0;line-height:40px}.cex-set-meta{display:flex;flex-wrap:wrap;gap:8px}.cex-set-meta span{display:inline-flex;min-height:26px;align-items:center;border-radius:999px;background:#f1f5f9;color:#475569;font-size:13px;font-weight:700;padding:0 10px}.cex-set-footer{margin-top:auto;padding:0 32px 32px}.cex-set-list-panel{min-height:0;overflow:auto;background:#f8fafc;padding:32px}.cex-set-list-inner{width:min(100%,768px);margin:0 auto}.cex-exercise-list{display:grid;gap:16px}.cex-category-group{display:grid;gap:14px}.cex-category-group+.cex-category-group{margin-top:14px}.cex-category-group-header{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}.cex-category-group-header h2,.cex-category-group-header p{margin:0}.cex-category-group-header h2{color:#0f172a;font-size:18px;font-weight:700;line-height:26px}.cex-category-group-header p{max-width:560px;color:#64748b;font-size:14px;line-height:22px}.cex-category-group-header span{display:inline-flex;min-height:28px;flex-shrink:0;align-items:center;border-radius:999px;background:#f1f5f9;color:#475569;font-size:13px;font-weight:700;padding:0 10px;white-space:nowrap}.cex-category-exercise-list{display:grid;gap:12px}.cex-category-overview-card{display:grid;grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:16px;min-height:88px;border:1px solid #e2e8f0;border-radius:12px;background:#fff;padding:18px 20px;text-decoration:none;transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease}.cex-category-overview-card:hover{border-color:#93c5fd;box-shadow:0 10px 24px #1e40af0f}.cex-category-overview-card strong,.cex-category-overview-card small{display:block}.cex-category-overview-card strong{color:#0f172a;font-size:18px;font-weight:700}.cex-category-overview-card small{margin-top:4px;color:#64748b;font-size:14px;line-height:22px}.cex-category-overview-card-meta,.cex-category-overview-card-action{display:inline-flex;align-items:center;white-space:nowrap}.cex-category-overview-card-meta{min-height:28px;border-radius:999px;background:#f1f5f9;color:#475569;font-size:13px;font-weight:700;padding:0 10px}.cex-category-overview-card-action{gap:5px;color:#2563eb;font-size:14px;font-weight:700}.cex-set-trailing-action{margin-top:32px;border-top:1px solid #e2e8f0;padding-top:32px}.cex-exercise-card{display:flex;min-height:82px;align-items:center;justify-content:space-between;gap:18px;border:1px solid #e2e8f0;border-radius:12px;background:#fff;padding:20px;text-decoration:none;transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease}.cex-exercise-card:hover{border-color:#93c5fd;background:#fff;box-shadow:0 10px 24px #1e40af0f}.cex-exercise-card--complete{border-color:#d1fae5;background:#ecfdf566}.cex-exercise-card--complete:hover{border-color:#a7f3d0;background:#ecfdf5a6}.cex-exercise-card-main{display:inline-flex;min-width:0;align-items:center;gap:16px}.cex-exercise-card-icon{display:inline-flex;height:40px;width:40px;flex-shrink:0;align-items:center;justify-content:center;border-radius:10px;background:#f1f5f9;color:#64748b;transition:background-color .18s ease,color .18s ease}.cex-exercise-card:hover .cex-exercise-card-icon{background:#eff6ff;color:#2563eb}.cex-exercise-card--complete .cex-exercise-card-icon{background:#d1fae5;color:#059669}.cex-exercise-card-copy{display:grid;min-width:0;gap:4px}.cex-exercise-card strong{color:#0f172a;font-size:18px;font-weight:700}.cex-exercise-card:hover strong{color:#1d4ed8}.cex-exercise-card--complete strong{color:#064e3b}.cex-exercise-card small{color:#64748b;font-size:13px;font-weight:700}.cex-exercise-card-action{display:inline-flex;align-items:center;gap:5px;color:#2563eb;font-size:14px;font-weight:700;opacity:0;transform:translate(-6px);transition:opacity .18s ease,transform .18s ease;white-space:nowrap}.cex-exercise-card:hover .cex-exercise-card-action,.cex-exercise-card:focus-visible .cex-exercise-card-action,.cex-exercise-card--complete .cex-exercise-card-action{opacity:1;transform:translate(0)}.cex-player-layout{display:grid;width:100%;min-height:0;flex:1;grid-template-columns:minmax(320px,35%) minmax(0,65%);gap:0;align-items:stretch}.cex-prompt-panel,.cex-code-panel{min-height:0}.cex-prompt-panel{overflow:auto;border-right:1px solid #e5e7eb;background:#f8fafc;color:#334155;padding:32px}.cex-code-panel{display:grid;overflow:hidden;background:#fff;grid-template-rows:minmax(0,1fr) auto minmax(180px,.36fr)}.cex-code-panel-fill{grid-row:1 / -1;min-height:0;height:100%}.cex-eyebrow{margin:0 0 16px;color:#64748b;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.cex-markdown{max-width:none;color:#334155;font-size:14px;line-height:1.625}.cex-markdown>*:first-child{margin-top:0}.cex-markdown>*:last-child{margin-bottom:0}.cex-markdown h1,.cex-markdown h2,.cex-markdown h3,.cex-markdown h4{color:#0f172a;font-weight:700;line-height:1.4}.cex-markdown h1{margin:0 0 24px;font-size:30px;font-weight:700;line-height:36px}.cex-markdown h2{margin:32px 0 16px;font-size:20px;line-height:28px}.cex-markdown hr+h2{margin-top:0}.cex-markdown h3{margin:24px 0 12px;font-size:16px;line-height:24px}.cex-markdown p{margin:16px 0}.cex-prompt-panel .cex-markdown p,.cex-prompt-panel .cex-markdown li{line-height:24px}.cex-markdown ul,.cex-markdown ol{margin:16px 0;padding-inline-start:26px}.cex-markdown ul{list-style-type:disc}.cex-markdown ol{list-style-type:decimal}.cex-markdown li{margin:4px 0;padding-left:6px}.cex-markdown li::marker{color:#94a3b8}.cex-markdown li>p{margin:8px 0}.cex-markdown hr{margin:28px 0;border:0;border-top:1px solid #cbd5e1}.cex-markdown a{color:#1d4ed8;text-underline-offset:2px}.cex-markdown code{border-radius:4px;background:#f1f5f9;color:#1e293b;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:14px;font-weight:400;line-height:20px;padding:2px 6px}.cex-prompt-panel .cex-markdown code{background:#e2e8f0}.cex-code-block{margin:16px 0;overflow:hidden;border:1px solid #e2e8f0;border-radius:10px;background:#fff;box-shadow:0 1px 2px #0f172a0a}.cex-result-panel{position:relative;min-height:0;overflow:auto;background:#fff;color:#334155;padding:16px 18px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:13px;line-height:1.6}.cex-result-panel--empty{color:#64748b}.cex-result-panel--pass{background:#f0fdf4}.cex-result-panel--fail,.cex-result-panel--error{background:#fff7ed}.cex-result-timestamp{position:absolute;top:14px;right:18px;color:#64748b;font-family:inherit}.cex-result-lines{display:grid;gap:2px;list-style:none;margin:0;padding:0}.cex-result-line{white-space:pre-wrap}.cex-result-line--comment{color:#64748b}.cex-success-backdrop{position:fixed;z-index:50;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;background:#0f172a73;padding:24px}.cex-success-dialog{display:grid;width:min(100%,520px);justify-items:center;gap:14px;border-radius:12px;background:#fff;box-shadow:0 24px 64px #0f172a3d;padding:34px;text-align:center}.cex-success-icon{display:inline-flex;width:76px;height:76px;align-items:center;justify-content:center;border-radius:999px;background:#dcfce7;color:#16a34a}.cex-success-dialog h2,.cex-success-dialog p{margin:0}.cex-success-dialog h2{color:#0f172a;font-size:22px;font-weight:700;line-height:30px}.cex-success-dialog p{color:#475569;font-size:16px;line-height:24px}.cex-success-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;padding-top:10px}@media (max-width: 760px){.cex-fullscreen-page{height:auto;overflow:auto}.cex-top-nav{align-items:flex-start;flex-direction:column;padding:12px 16px}.cex-top-nav-left{width:100%;align-items:flex-start;flex-direction:column;gap:8px}.cex-top-nav-progress,.cex-top-nav-actions{width:100%;align-items:flex-start;justify-content:flex-start}.cex-set-layout,.cex-player-layout{grid-template-columns:1fr}.cex-category-overview-card{grid-template-columns:1fr;align-items:flex-start}.cex-set-info,.cex-prompt-panel{border-right:0;border-bottom:1px solid #e2e8f0}.cex-set-title-block h1{font-size:34px}.cex-code-panel{min-height:640px}}