.lms-app{--lms-radius: 12px;--lms-radius-sm: 8px;--lms-shadow: 0 1px 2px rgba(0, 0, 0, .06), 0 4px 16px rgba(0, 0, 0, .06);--lms-sidebar-w: 272px;min-height:100vh}.lms-app *{box-sizing:border-box}.lms-app aside[aria-label=Progress]{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.lms-topbar{display:flex;flex-wrap:wrap;align-items:center;gap:1rem 1.5rem;padding:1rem 1.5rem;border-bottom:1px solid var(--lk-color-border);background:var(--lk-color-panel)}.lms-topbar-brand{flex:1;min-width:200px}.lms-app section[aria-label]>h1{display:none}.lms-topbar-heading{margin:0;font-size:1.25rem;font-weight:700;letter-spacing:-.02em;line-height:1.3}.lms-topbar-meta{margin:.25rem 0 0;font-size:.8125rem;color:var(--lk-color-muted)}.lms-progress-ring{display:flex;align-items:center;gap:.75rem}.lms-progress-ring svg{width:48px;height:48px;transform:rotate(-90deg)}.lms-progress-ring circle{fill:none;stroke-width:4}.lms-progress-ring .track{stroke:color-mix(in srgb,var(--lk-color-border) 80%,transparent)}.lms-progress-ring .fill{stroke:var(--lk-color-primary);stroke-linecap:round;transition:stroke-dashoffset .35s ease}.lms-progress-label{font-size:.75rem;font-weight:600;color:var(--lk-color-muted)}.lms-progress-label strong{display:block;font-size:1.125rem;color:var(--lk-color-foreground)}.lms-chips{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.5rem}.lms-chip{font-size:.6875rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;padding:.25rem .625rem;border-radius:999px;background:color-mix(in srgb,var(--lk-color-primary) 12%,transparent);color:var(--lk-color-primary);border:1px solid color-mix(in srgb,var(--lk-color-primary) 25%,transparent)}.lms-chip--warn{background:color-mix(in srgb,var(--lk-color-danger) 10%,transparent);color:var(--lk-color-danger);border-color:color-mix(in srgb,var(--lk-color-danger) 30%,transparent)}.lms-shell{display:grid;grid-template-columns:var(--lms-sidebar-w) 1fr;min-height:calc(100vh - 80px)}@media(max-width:840px){.lms-shell{grid-template-columns:1fr}.lms-sidebar{border-bottom:1px solid var(--lk-color-border)}}.lms-sidebar{padding:1rem;border-right:1px solid var(--lk-color-border);background:color-mix(in srgb,var(--lk-color-background) 96%,var(--lk-color-panel))}.lms-sidebar-title{font-size:.6875rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--lk-color-muted);margin:0 0 .75rem}.lms-outline{list-style:none;margin:0;padding:0}.lms-outline li{margin-bottom:.35rem}.lms-outline-btn{width:100%;text-align:left;display:flex;flex-direction:column;gap:.35rem;padding:.625rem .75rem;border:1px solid transparent;border-radius:var(--lms-radius-sm);background:transparent;color:var(--lk-color-foreground);font-size:.8125rem;font-weight:600;cursor:pointer;transition:background .15s,border-color .15s}.lms-outline-btn:hover:enabled{background:color-mix(in srgb,var(--lk-color-primary) 8%,transparent)}.lms-outline-btn[aria-current=step],.lms-outline-btn.lms-outline-active{background:color-mix(in srgb,var(--lk-color-primary) 14%,transparent);border-color:color-mix(in srgb,var(--lk-color-primary) 35%,transparent)}.lms-outline-btn.lms-outline-done .lms-outline-label:before{content:"✓ ";color:var(--lk-color-success)}.lms-outline-bar{height:3px;border-radius:999px;background:var(--lk-color-border);overflow:hidden}.lms-outline-bar span{display:block;height:100%;background:var(--lk-color-primary);border-radius:999px;transition:width .3s ease}.lms-sidebar-extra{display:flex;flex-direction:column;gap:.75rem;margin-top:1rem;padding-top:1rem;border-top:1px solid var(--lk-color-border)}.lms-sidebar-footer{display:flex;gap:.5rem}.lms-sidebar-footer button{flex:1;font:inherit;font-size:.8125rem;font-weight:600;padding:.5rem .75rem;border-radius:var(--lms-radius-sm);border:1px solid var(--lk-color-border);background:var(--lk-color-surface);color:var(--lk-color-text);cursor:pointer;transition:border-color .15s,background .15s}.lms-sidebar-footer button:hover:enabled{border-color:var(--lk-color-primary);background:color-mix(in srgb,var(--lk-color-primary) 8%,var(--lk-color-surface))}.lms-sidebar-footer button:last-child:not(:disabled){background:var(--lk-color-primary);color:var(--lk-color-primary-foreground, #fff);border-color:var(--lk-color-primary)}.lms-sidebar-footer button:last-child:hover:enabled{background:color-mix(in srgb,var(--lk-color-primary) 88%,#000);border-color:color-mix(in srgb,var(--lk-color-primary) 88%,#000)}.lms-sidebar-footer button:disabled{opacity:.45;cursor:not-allowed}.lms-main{padding:1.25rem 1.5rem 3rem;max-width:720px}.lms-main article>h2{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.lms-lesson-header{margin-bottom:1.25rem}.lms-lesson-type{font-size:.6875rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--lk-color-primary)}.lms-lesson-title{margin:.35rem 0 .5rem;font-size:1.5rem;font-weight:700;letter-spacing:-.02em}.lms-lesson-duration{font-size:.8125rem;color:var(--lk-color-muted)}.lms-app section[aria-label=Scenario],.lms-scenario{border-left:4px solid var(--lk-color-primary);padding:1rem 1.125rem;margin:0 0 1.25rem;border-radius:0 var(--lms-radius-sm) var(--lms-radius-sm) 0;background:color-mix(in srgb,var(--lk-color-primary) 6%,var(--lk-color-panel));font-size:.9375rem;line-height:1.55}.lms-app section[aria-label=Scenario] p,.lms-scenario p{margin:0}.lms-app .panel,.lms-panel{background:var(--lk-color-panel);border:1px solid var(--lk-color-border);border-radius:var(--lms-radius);padding:1.25rem;margin:0 0 1rem;box-shadow:var(--lms-shadow)}.lms-app section:not([aria-label=Scenario]):not(.lms-sidebar):not(.lms-topbar),.lms-app article{border:none;box-shadow:none;background:transparent;padding:0;margin:0 0 1rem}.lms-app .callout,.lms-feedback{border-radius:var(--lms-radius-sm);padding:1rem 1.125rem;margin:1rem 0 0;font-size:.9375rem;line-height:1.5}.lms-app .callout,.lms-feedback--info{background:color-mix(in srgb,var(--lk-color-primary) 10%,var(--lk-color-panel));border:1px solid color-mix(in srgb,var(--lk-color-primary) 22%,transparent)}.lms-feedback--success{background:color-mix(in srgb,var(--lk-color-success) 12%,var(--lk-color-panel));border:1px solid color-mix(in srgb,var(--lk-color-success) 35%,transparent)}.lms-feedback--warn{background:color-mix(in srgb,var(--lk-color-warning) 12%,var(--lk-color-panel));border:1px solid color-mix(in srgb,var(--lk-color-warning) 35%,transparent)}.lms-app .hint{border-radius:var(--lms-radius-sm);padding:.875rem 1rem;margin-top:1rem;border:1px dashed color-mix(in srgb,var(--lk-color-primary) 40%,transparent);background:color-mix(in srgb,var(--lk-color-primary) 5%,transparent);font-size:.875rem}.lms-app .card,.lms-card{background:var(--lk-color-panel);border:1px solid var(--lk-color-border);border-radius:var(--lms-radius);padding:1rem;margin-bottom:.75rem;box-shadow:var(--lms-shadow);transition:border-color .15s,box-shadow .15s}.lms-app .card:hover{border-color:color-mix(in srgb,var(--lk-color-primary) 30%,var(--lk-color-border))}.lms-app .actions{display:flex;flex-direction:column;gap:.5rem;margin-top:.75rem}.lms-app .actions button,.lms-btn-option{width:100%;text-align:left;padding:.75rem 1rem;border-radius:var(--lms-radius-sm);border:1px solid var(--lk-color-border);background:var(--lk-color-background);font-size:.875rem;font-weight:500;cursor:pointer;transition:border-color .15s,background .15s}.lms-app .actions button:hover:enabled{border-color:var(--lk-color-primary);background:color-mix(in srgb,var(--lk-color-primary) 8%,var(--lk-color-background))}.lms-btn-primary{background:var(--lk-color-primary)!important;color:var(--lk-color-primary-foreground, #fff)!important;border-color:var(--lk-color-primary)!important;font-weight:600}.lms-app .pill{font-size:.6875rem;font-weight:700;padding:.2rem .5rem;border-radius:4px;text-transform:uppercase;letter-spacing:.03em}.lms-app .pill-warn{background:color-mix(in srgb,var(--lk-color-warning) 18%,transparent);color:var(--lk-color-warning);border:none}.lms-app .pill-ok{background:color-mix(in srgb,var(--lk-color-success) 18%,transparent);color:var(--lk-color-success);border:none}.lms-score-card{display:flex;align-items:center;gap:1rem;padding:1rem;border-radius:var(--lms-radius);background:color-mix(in srgb,var(--lk-color-primary) 8%,var(--lk-color-panel));border:1px solid var(--lk-color-border);margin-bottom:1rem}.lms-score-card .score{font-size:2rem;font-weight:800;color:var(--lk-color-primary);background:none;-webkit-text-fill-color:unset}.lms-objectives{margin:.75rem 0 0;padding-left:1.25rem;font-size:.875rem;color:var(--lk-color-muted);line-height:1.6}.lms-theme-toggle{display:flex;gap:.35rem;margin-top:1rem}.lms-theme-toggle button{font-size:.75rem;padding:.35rem .6rem}.lms-theme-toggle button[aria-pressed=true]{border-color:var(--lk-color-primary);background:color-mix(in srgb,var(--lk-color-primary) 15%,transparent)}.lms-app form[role=form],.lms-app fieldset{border:1px solid var(--lk-color-border);border-radius:var(--lms-radius);padding:1.25rem;background:var(--lk-color-panel);box-shadow:var(--lms-shadow)}.lms-app label{display:block;font-weight:600;margin-bottom:.75rem;font-size:.9375rem}.lms-device-frame{max-width:320px;margin:0 auto;border-radius:24px;border:3px solid var(--lk-color-border);padding:1rem;background:color-mix(in srgb,var(--lk-color-background) 90%,#000)}.lms-chat-window{border-radius:var(--lms-radius);border:1px solid var(--lk-color-border);overflow:hidden;background:var(--lk-color-background)}.lms-chat-header{padding:.75rem 1rem;font-size:.8125rem;font-weight:600;border-bottom:1px solid var(--lk-color-border);background:var(--lk-color-panel)}.lms-chat-body{padding:1rem;display:flex;flex-direction:column;gap:.65rem}.lms-theme-security{background:var(--lk-color-background)}.lms-theme-security .lms-topbar{background:color-mix(in srgb,var(--lk-color-panel) 95%,#000)}.lms-theme-compliance{background:#f8fafc}.lms-theme-compliance .lms-topbar,.lms-theme-compliance .lms-sidebar{background:#fff}.lms-theme-support{background:#f4f6f8}.lms-theme-support .lms-topbar{background:#fff;border-bottom-color:#e2e8f0}.lms-theme-field{background:#fafaf9}.lms-theme-field .lms-topbar{border-bottom:3px solid #ea580c}.lms-theme-field .lms-chip,.lms-theme-field .lms-outline-bar span{--lk-color-primary: #ea580c}html,body{margin:0;height:100%}.instructor-note{border-left:4px solid #4f46e5;margin-bottom:1rem}.basis-grid{display:grid;grid-template-columns:1fr 1fr;gap:.5rem}.basis-selected{border-color:var(--lk-color-primary)!important;background:color-mix(in srgb,var(--lk-color-primary) 12%,transparent)!important}.case-meta{font-size:.6875rem;font-weight:700;text-transform:uppercase;color:var(--lk-color-muted)}.role-switch{display:flex;gap:.5rem;margin-bottom:.75rem}.role-switch button[aria-pressed=true]{border-color:var(--lk-color-primary);background:color-mix(in srgb,var(--lk-color-primary) 10%,transparent)}.timeline button{text-align:left;margin-bottom:.35rem}.checkbox-row{display:flex;gap:.5rem;margin:.5rem 0;font-size:.875rem}