.ka-player-layout{display:flex;align-items:flex-start}.ka-player-main{flex:1 1;min-width:0;overflow-x:clip}.ka-player{--ka-player-px:16px;width:100%;max-width:900px;margin:0 auto;padding:24px var(--ka-player-px) 80px;min-height:100vh;display:flex;flex-direction:column;gap:20px}@media (min-width:640px){.ka-player{--ka-player-px:28px;padding:24px var(--ka-player-px) 80px}}@media (min-width:1024px){.ka-player{--ka-player-px:40px;padding:28px var(--ka-player-px) 80px}}@media (min-width:1440px){.ka-player{max-width:1000px;--ka-player-px:48px;padding:32px var(--ka-player-px) 80px}}.ka-player .ka-block-hero--banner{width:var(--ka-main-width,calc(100% + 2 * var(--ka-player-px)));max-width:none;margin-left:50%;transform:translateX(-50%);min-height:30vh}.ka-player-body .ka-block-hero--first-block:not(.ka-block-hero--banner){width:var(--ka-body-width,100%);max-width:none;margin-left:50%;transform:translateX(-50%)}.ka-player-body .ka-block-list>.ka-block-shell--content:first-child:has(.ka-block-hero--first-block),.ka-player-body .ka-block-step:has(.ka-block-hero--first-block){padding-top:0;margin-top:-4px}.ka-lare-slide:has(.ka-block-hero--banner.ka-block-hero--first-block){padding-top:0}.ka-player-header{display:flex;flex-direction:column;gap:12px;padding:4px 2px 0}.ka-player-title{font-size:22px;font-weight:700;line-height:1.25;color:var(--ka-text);letter-spacing:-.01em;margin:0;display:flex;align-items:center;flex-wrap:wrap;gap:4px}@media (max-width:639px){.ka-player-title{font-size:19px}}.ka-player-progress-wrap{display:flex;flex-direction:column;gap:7px}.ka-player-progress-meta{display:flex;align-items:baseline;justify-content:flex-start;gap:10px}.ka-player-progress-pct{font-size:12.5px;font-weight:700;color:var(--ka-ink);text-transform:uppercase;letter-spacing:.04em;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.ka-player-counter{font-size:12.5px;font-weight:500;color:var(--ka-text-muted);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.ka-player-progress-wrap .ka-progress{height:6px}.ka-player .ka-progress,.ka-player-progress-wrap .ka-progress,.ka-toc-progress .ka-progress{height:8px;background:#e6e8ec;border-radius:var(--ka-radius-pill);overflow:hidden}.ka-progress-fill{height:100%;background:linear-gradient(90deg,var(--ka-ink),#6b7590);border-radius:var(--ka-radius-pill);transition:width .35s cubic-bezier(.22,1,.36,1)}.ka-player-body{background:transparent;border:none;border-radius:0;padding:8px 0 4px;min-height:360px;box-shadow:none}.ka-slide-video{display:flex;flex-direction:column;gap:14px}.ka-video-frame{width:100%;aspect-ratio:16/9;border-radius:var(--ka-radius-md);overflow:hidden;background:#000;box-shadow:0 4px 16px rgba(0,0,0,.12)}.ka-video-frame iframe,.ka-video-frame video{width:100%;height:100%;border:none;display:block}.ka-block-video{width:100%;aspect-ratio:16/9;border-radius:var(--ka-radius-md);overflow:hidden;background:#000}.ka-block-video iframe,.ka-block-video video{width:100%;height:100%;border:none;display:block}.ka-video-placeholder{height:200px;border-radius:var(--ka-radius-md);background:#1a1a2e;color:rgba(255,255,255,.55);display:flex;align-items:center;justify-content:center;font-size:13px}.ka-video-text{margin-top:4px}.ka-quiz{display:flex;flex-direction:column;gap:24px}.ka-quiz-card{background:#fff;border:1px solid var(--ka-border);border-radius:var(--ka-radius-lg);padding:24px 28px;box-shadow:0 1px 3px rgba(15,23,42,.04)}.ka-quiz-hint{font-size:13px;color:var(--ka-text-soft);margin-bottom:14px;line-height:1.45}.ka-quiz-answers{list-style:none;padding:0;margin:0 0 16px;display:flex;flex-direction:column;gap:10px}.ka-quiz-answer{width:100%;display:flex;align-items:center;gap:10px;padding:11px 14px;background:#fff;color:var(--ka-text);border:1.5px solid var(--ka-border);border-radius:var(--ka-radius-md);text-align:left;transition:all .15s}.ka-quiz-answer.picked,.ka-quiz-answer:hover:not(:disabled){border-color:var(--ka-primary);background:var(--ka-primary-bg);color:var(--ka-primary)}.ka-quiz-answer.picked{font-weight:600}.ka-quiz-answer.correct{border-color:var(--ka-success-light);background:var(--ka-success-bg);color:var(--ka-success-light)}.ka-quiz-answer.wrong{border-color:var(--ka-danger);background:var(--ka-danger-bg);color:var(--ka-danger)}.ka-quiz-answer.locked{cursor:default}.ka-quiz-marker{flex-shrink:0;width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;border:2px solid var(--ka-border);background:#fff;color:#fff;transition:all .15s ease}.ka-quiz-marker.is-radio{border-radius:50%}.ka-quiz-marker.is-checkbox{border-radius:var(--ka-radius-sm)}.ka-quiz-answer:hover:not(:disabled) .ka-quiz-marker,.ka-quiz-marker.is-picked{border-color:var(--ka-primary)}.ka-quiz-marker.is-picked{background:var(--ka-primary)}.ka-quiz-marker.is-radio.is-picked:after{content:"";width:8px;height:8px;border-radius:50%;background:#fff}.ka-quiz-answer.correct .ka-quiz-marker{border-color:var(--ka-success-light);background:var(--ka-success-light)}.ka-quiz-answer.wrong .ka-quiz-marker{border-color:var(--ka-danger);background:var(--ka-danger)}.ka-quiz-answer.correct .ka-quiz-marker.is-radio:after,.ka-quiz-answer.wrong .ka-quiz-marker.is-radio:after{content:"";width:8px;height:8px;border-radius:50%;background:#fff}.ka-quiz-answer-text{flex:1 1}.ka-quiz-tag{font-size:10.5px;font-weight:700;padding:2px 7px;border-radius:var(--ka-radius-md);text-transform:uppercase;letter-spacing:.04em}.ka-quiz-tag.correct{background:rgba(92,170,111,.15);color:var(--ka-success-light)}.ka-quiz-tag.wrong{background:rgba(192,57,43,.15);color:var(--ka-danger)}.ka-quiz-explanation{margin-top:10px;padding:11px 14px;background:#fff8e6;border-left:3px solid #e6b327;border-radius:0 var(--ka-radius-md) var(--ka-radius-md) 0;color:var(--ka-warn);font-size:13px;line-height:1.55}.ka-btn.ka-tf-show-answer{margin:8px 0}.ka-diff-explanation{margin-top:16px;padding:14px 16px;border-radius:var(--ka-radius-md);font-size:14px;line-height:1.55;border:1px solid transparent}.ka-diff-explanation.is-correct{background:var(--ka-success-bg-soft);border-color:var(--ka-success-border);color:var(--ka-success-text)}.ka-diff-explanation.is-wrong{background:var(--ka-danger-bg-soft);border-color:var(--ka-danger-border);color:#6a2020}.ka-diff-explanation-heading{font-weight:700;margin-bottom:6px;font-size:13px;letter-spacing:.01em}.ka-diff-explanation-body{font-size:13.5px}.ka-diff-explanation-body p:first-child{margin-top:0}.ka-diff-explanation-body p:last-child{margin-bottom:0}.ka-quiz-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}.ka-quiz-hint-box{margin-top:10px;padding:11px 14px;background:var(--ka-info-bg);border-left:3px solid var(--ka-blue,var(--ka-info));border-radius:0 var(--ka-radius-md) var(--ka-radius-md) 0;color:var(--ka-info);font-size:13px;line-height:1.55}.ka-player-footer{display:flex;align-items:center;gap:10px;padding:16px 2px 0;border-top:1px solid var(--ka-border)}.ka-player-spacer{flex:1 1}.ka-player-footer--intro{justify-content:center}.ka-btn-start{display:inline-flex;align-items:center;gap:9px;padding:14px 34px;border:1px solid transparent;border-radius:var(--ka-radius-md);background:var(--ka-primary);color:#fff;font-weight:700;font-size:17px;cursor:pointer;box-shadow:0 2px 6px color-mix(in srgb,var(--ka-primary) 28%,transparent);transition:all .15s}.ka-btn-start:hover{background:var(--ka-primary-hover);transform:translateY(-1px);box-shadow:0 4px 12px color-mix(in srgb,var(--ka-primary) 34%,transparent)}.ka-player-footer .ka-btn{border:1px solid transparent;box-shadow:0 2px 6px color-mix(in srgb,var(--ka-primary) 28%,transparent)}.ka-player-footer .ka-btn:hover:not(:disabled){box-shadow:0 4px 12px color-mix(in srgb,var(--ka-primary) 34%,transparent)}.ka-gate{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.ka-gate-card{max-width:460px;width:100%;background:var(--ka-surface);border:1px solid var(--ka-border);border-radius:var(--ka-radius-lg);padding:32px 28px;box-shadow:0 6px 22px rgba(28,32,40,.08)}.ka-gate-card h1{font-size:22px;margin-bottom:8px}.ka-gate .ka-field,.ka-player .ka-field{display:flex;flex-direction:column;gap:4px;margin:14px 0}.ka-gate .ka-field span,.ka-player .ka-field span{font-size:11.5px;font-weight:600;color:var(--ka-text-soft);text-transform:uppercase;letter-spacing:.06em}.ka-gate .ka-field input,.ka-player .ka-field input{font:inherit;padding:10px 12px;border:1px solid var(--ka-border-strong);border-radius:var(--ka-radius-md);background:#fff;color:var(--ka-text)}.ka-gate .ka-field input:focus,.ka-player .ka-field input:focus{outline:none;border-color:var(--ka-primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--ka-primary) 15%,transparent)}.ka-result-content{max-width:640px;margin:8px auto 4px;text-align:center}.ka-result-content h2{margin-top:0}.ka-result-card{max-width:560px;margin:24px auto;background:var(--ka-surface);border:1px solid var(--ka-border);border-radius:var(--ka-radius-lg);padding:36px 32px;text-align:center;box-shadow:0 6px 22px rgba(28,32,40,.08)}.ka-result-icon{width:70px;height:70px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:34px;font-weight:700;margin-bottom:14px}.ka-result-card.passed .ka-result-icon{background:var(--ka-success-bg);color:var(--ka-success-light)}.ka-result-card.failed .ka-result-icon{background:var(--ka-danger-bg);color:var(--ka-danger)}.ka-result-title{font-size:26px;font-weight:700;margin-bottom:8px}.ka-result-message{font-size:15px;color:var(--ka-text-soft);line-height:1.6;margin-bottom:18px}.ka-result-score{margin:22px 0}.ka-result-score-num{font-size:30px;font-weight:700;color:var(--ka-text)}.ka-result-score-percent{font-size:14px;color:var(--ka-text-muted);margin-top:2px}.ka-result-threshold{font-size:12px;margin-top:4px}.ka-result-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:22px}.ka-result-review{max-width:560px;margin:24px auto 0}.ka-result-review-title{font-size:18px;font-weight:700;margin:0 0 12px}.ka-result-review-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}.ka-review-item{background:var(--ka-surface);border-left:1px solid var(--ka-border);border:1px solid var(--ka-border);border-left-width:3px;border-radius:var(--ka-radius-sm);padding:12px 14px}.ka-review-item.correct{border-left-color:var(--ka-success-light)}.ka-review-item.wrong{border-left-color:var(--ka-danger)}.ka-review-item.unanswered{border-left-color:var(--ka-border);opacity:.85}.ka-review-q{display:flex;align-items:flex-start;gap:8px;font-weight:600;font-size:14px;color:var(--ka-text)}.ka-review-badge{flex-shrink:0;width:20px;height:20px;line-height:20px;text-align:center;border-radius:50%;font-size:12px;font-weight:700;color:#fff;background:var(--ka-text-muted)}.ka-review-item.correct .ka-review-badge{background:var(--ka-success-light)}.ka-review-item.wrong .ka-review-badge{background:var(--ka-danger)}.ka-review-qtext{min-width:0}.ka-review-answers{margin-top:8px;padding-left:28px;font-size:13px;color:var(--ka-text-soft);line-height:1.5}.ka-review-line{word-break:break-word}.ka-review-label{font-weight:600;color:var(--ka-text)}.ka-review-explanation{margin-top:8px;padding:8px 10px;background:var(--ka-surface-muted,#f6f7f9);border-left:3px solid var(--ka-border);border-radius:var(--ka-radius-sm);font-size:13px}.ka-review-explanation>:first-child{margin-top:0}.ka-review-explanation>:last-child{margin-bottom:0}.ka-player-header-row{display:flex;align-items:center;gap:12px}.ka-player-header-row .ka-player-title{flex:1 1;min-width:0}.ka-player-actions{display:inline-flex;align-items:center;gap:6px;flex-shrink:0}.ka-player-icon-btn{height:34px;min-width:34px;padding:0 8px;border-radius:var(--ka-radius-md);border:1px solid transparent;background:transparent;color:var(--ka-text-soft);font-size:16px;line-height:1;display:inline-flex;align-items:center;justify-content:center;transition:all .15s}.ka-player-icon-btn:hover{background:var(--ka-surface-alt);color:var(--ka-text)}.ka-player-icon-btn.active{background:var(--ka-primary);color:#fff;border-color:transparent}.ka-player-icon-btn:focus-visible{outline:none;box-shadow:0 0 0 3px color-mix(in srgb,var(--ka-primary) 35%,transparent)}.ka-player-actions .ka-player-icon-btn{height:40px;min-width:40px;padding:0;border-radius:50%;background:var(--ka-surface-alt);font-size:16px}.ka-player-actions .ka-player-icon-btn:hover{background:#e9eaee;color:var(--ka-text)}.ka-player-actions .ka-player-icon-btn.active{background:var(--ka-primary-bg);color:var(--ka-primary)}@media (min-width:1024px){.ka-sidebar-toggle{display:none}}.ka-slide-status .ka-sidebar-toggle{flex-shrink:0}.ka-player-timer,.ka-slide-status .ka-sidebar-toggle{background:var(--ka-surface-alt);border-radius:var(--ka-radius-md)}.ka-player-timer{font-feature-settings:"tnum";font-variant-numeric:tabular-nums;font-size:13px;font-weight:700;padding:6px 10px;color:var(--ka-text-soft);letter-spacing:.02em}.ka-player-timer.urgent{background:var(--ka-primary);color:#fff;animation:ka-pulse 1s infinite}@keyframes ka-pulse{0%,to{opacity:1}50%{opacity:.65}}.ka-quiz-mode-banner{background:var(--ka-warn-bg);border:1px solid rgba(230,179,39,.3);color:var(--ka-warn);padding:10px 14px;border-radius:var(--ka-radius-md);font-size:13px;margin-bottom:6px}.ka-btn-tiny{padding:5px 10px;font-size:12px;border-radius:var(--ka-radius-lg);align-self:flex-start}.ka-drawer-overlay{position:fixed;inset:0;background:rgba(26,26,46,.42);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);z-index:1400;display:flex;justify-content:flex-end;animation:ka-fade-in .15s ease-out}@keyframes ka-fade-in{0%{opacity:0}to{opacity:1}}.ka-drawer{width:420px;max-width:92vw;background:var(--ka-surface);height:100vh;display:flex;flex-direction:column;box-shadow:-8px 0 28px rgba(28,32,40,.18);animation:ka-slide-in .2s ease-out}@keyframes ka-slide-in{0%{transform:translateX(20px);opacity:.7}to{transform:translateX(0);opacity:1}}.ka-drawer-header{display:flex;align-items:flex-start;justify-content:space-between;padding:18px 22px 14px;border-bottom:1px solid var(--ka-border)}.ka-drawer-eyebrow{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--ka-text-muted);margin-bottom:4px}.ka-drawer-title{font-size:17px;font-weight:700;margin:0;color:var(--ka-text);letter-spacing:-.01em}.ka-drawer-close{width:30px;height:30px;border-radius:50%;border:none;background:var(--ka-surface-alt);color:var(--ka-text-muted);font-size:15px;line-height:1;display:inline-flex;align-items:center;justify-content:center;padding:0}.ka-drawer-close:hover{background:#fbeee8;color:var(--ka-primary)}.ka-drawer-body{flex:1 1;display:flex;flex-direction:column;padding:18px 22px 22px;gap:8px}.ka-drawer-hint{font-size:12.5px;margin-bottom:6px}.ka-drawer-textarea{flex:1 1;min-height:240px;font:inherit;font-size:14px;border:1px solid var(--ka-border-strong);border-radius:var(--ka-radius-md);padding:12px 14px;background:#fff;color:var(--ka-text);resize:vertical}.ka-drawer-textarea:focus{outline:none;border-color:var(--ka-primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--ka-primary) 15%,transparent)}.ka-drawer-status{font-size:11.5px;color:var(--ka-text-muted);text-align:right;min-height:14px}.ka-course-sidebar{position:-webkit-sticky;position:sticky;top:calc(var(--ka-authbar-h, 60px) + var(--ka-preview-h, 0px));align-self:flex-start;height:calc(100vh - var(--ka-authbar-h, 60px) - var(--ka-preview-h, 0px));flex:0 0 320px;width:320px;overflow:hidden;background:var(--ka-surface-subtle);border-right:1px solid var(--ka-border);box-shadow:inset -7px 0 12px -10px rgba(15,23,42,.14),inset 6px 0 10px -10px rgba(15,23,42,.05);transition:flex-basis .22s ease,width .22s ease}.ka-course-sidebar-inner{width:320px;height:100%;overflow-y:auto;padding:0 0 32px;display:flex;flex-direction:column}.ka-player-layout[data-sidebar-open=false] .ka-course-sidebar{flex-basis:64px;width:64px}.ka-player-layout[data-sidebar-open=false] .ka-course-sidebar-inner,.ka-sidebar-backdrop,.ka-sidebar-rail{display:none}.ka-player-layout[data-sidebar-open=false] .ka-sidebar-rail{display:flex;flex-direction:column;align-items:center;width:64px;height:100%;overflow-y:auto;padding:10px 0 24px;gap:10px}.ka-sidebar-rail-expand{flex-shrink:0;width:32px;height:32px;border-radius:50%;border:1px solid var(--ka-border-strong);background:var(--ka-surface);color:var(--ka-text-soft);font-size:18px;line-height:1;display:inline-flex;align-items:center;justify-content:center}.ka-sidebar-rail-expand:hover{background:var(--ka-surface-alt);color:var(--ka-text)}.ka-sidebar-rail-actions{flex-shrink:0;display:flex;flex-direction:column;align-items:center;gap:6px}.ka-rail-icon{width:34px;height:34px;border-radius:var(--ka-radius-md);border:1px solid var(--ka-border);background:var(--ka-surface);color:var(--ka-text-soft);font-size:14px;line-height:1;display:inline-flex;align-items:center;justify-content:center;transition:all .12s}.ka-rail-icon:hover{background:var(--ka-surface-alt);color:var(--ka-text)}.ka-rail-icon.active{background:var(--ka-primary-bg);color:var(--ka-primary);border-color:color-mix(in srgb,var(--ka-primary) 35%,transparent)}.ka-rail-pct{flex-shrink:0;font-size:11px;font-weight:700;color:var(--ka-ink);font-feature-settings:"tnum";font-variant-numeric:tabular-nums;letter-spacing:-.01em}.ka-rail-divider{flex-shrink:0;width:26px;height:1px;background:var(--ka-border);margin:1px 0}.ka-sidebar-rail-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;align-items:center;gap:8px}.ka-rail-dot{width:30px;height:30px;border-radius:50%;border:1.5px solid var(--ka-border-strong);background:var(--ka-surface);color:var(--ka-text-soft);font-size:12px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;transition:all .12s}.ka-rail-dot:hover:not(:disabled){border-color:var(--ka-primary);color:var(--ka-primary)}.ka-rail-dot:disabled{opacity:.5;cursor:default}.ka-rail-dot--done{background:transparent;border-color:transparent;color:var(--ka-ink)}.ka-rail-dot--current{background:var(--ka-primary);border-color:var(--ka-primary);color:#fff;box-shadow:0 0 0 3px var(--ka-primary-bg)}.ka-sidebar-head{padding:14px 14px 12px;border-bottom:1px solid var(--ka-border);background:var(--ka-ink)}.ka-sidebar-head,.ka-sidebar-head-main{display:flex;align-items:center;gap:8px}.ka-sidebar-head-main{flex:1 1;min-width:0}.ka-sidebar-head-title{flex:0 1 auto;min-width:0;font-size:17px;font-weight:600;color:var(--ka-text);letter-spacing:-.01em;color:#fff;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ka-sidebar-head .ka-mode-pill{flex-shrink:0;margin-left:0}.ka-qgrid-wrap{padding:4px 14px 14px}.ka-qgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(40px,1fr));grid-gap:8px;gap:8px}.ka-qcell{position:relative;aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;border:1.5px solid var(--ka-border);border-radius:var(--ka-radius-md);background:var(--ka-surface,#fff);color:var(--ka-text);font-size:14px;font-weight:700;cursor:pointer;transition:border-color .15s ease,background .15s ease,transform .1s ease}.ka-qcell:hover:not(:disabled){border-color:var(--ka-primary);transform:translateY(-1px)}.ka-qcell:disabled{opacity:.45;cursor:not-allowed}.ka-qcell--todo{background:var(--ka-surface,#fff);color:var(--ka-text-muted,#6b7280)}.ka-qcell--done{background:var(--ka-success-bg);border-color:var(--ka-success);color:var(--ka-success)}.ka-qcell--current{border-color:var(--ka-text-muted,#6b7280);background:#f3f4f6;color:var(--ka-text,#374151);box-shadow:0 0 0 2px color-mix(in srgb,var(--ka-text-muted,#6b7280) 20%,transparent)}.ka-qcell--active{box-shadow:0 0 0 2px color-mix(in srgb,var(--ka-text-muted,#6b7280) 40%,transparent)}.ka-qcell--done .ka-qcell-num{display:none}.ka-qcell-check{font-size:13px}.ka-qcell-flag{position:absolute;top:3px;right:3px;font-size:8px;color:var(--ka-warn,#d97706)}.ka-qcell.flagged{border-color:var(--ka-warn,#d97706)}.ka-qgrid-legend{display:flex;flex-wrap:wrap;gap:10px 14px;margin-top:14px;font-size:12px;color:var(--ka-text-muted,#6b7280)}.ka-qgrid-legend>span{display:inline-flex;align-items:center;gap:5px}.ka-qdot{width:11px;height:11px;border-radius:3px;border:1.5px solid var(--ka-border);display:inline-block}.ka-qdot--done{background:var(--ka-success-bg);border-color:var(--ka-success)}.ka-qdot--current{background:#f3f4f6;border-color:var(--ka-text-muted,#6b7280)}.ka-qdot--todo{background:var(--ka-surface,#fff)}.ka-qgrid-legend-flag{font-size:11px;color:var(--ka-warn,#d97706)}.ka-qgrid-note{margin-top:12px;font-size:12.5px;color:var(--ka-text-muted,#6b7280)}.ka-qgrid-note--done{color:var(--ka-success);font-weight:600}.ka-pagesteps{list-style:none;margin:0;padding:0;display:flex;align-items:center;gap:0;flex-wrap:wrap}.ka-pagestep-item{display:inline-flex;align-items:center}.ka-pagestep-item:not(:first-child):before{content:"";width:22px;height:2px;background:var(--ka-border,#e5e7eb);margin:0 6px}.ka-pagestep{width:26px;height:26px;border-radius:50%;border:1.5px solid var(--ka-border,#e5e7eb);background:var(--ka-surface,#fff);color:var(--ka-text-muted,#6b7280);font-size:12px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:border-color .15s,background .15s,color .15s}.ka-pagestep:hover:not(:disabled){border-color:var(--ka-primary)}.ka-pagestep:disabled{cursor:not-allowed;opacity:.5}.ka-pagestep.current{border-color:var(--ka-text-muted,#6b7280);background:#f3f4f6;color:var(--ka-text,#374151);box-shadow:0 0 0 2px color-mix(in srgb,var(--ka-text-muted,#6b7280) 20%,transparent)}.ka-pagestep.done{border-color:var(--ka-success);background:var(--ka-success-bg);color:var(--ka-success)}.ka-sidebar-actions{display:flex;align-items:center;gap:8px;padding:12px 14px;border-bottom:1px solid var(--ka-border)}.ka-sidebar-actions .ka-player-icon-btn{height:38px;min-width:38px;padding:0;border-radius:var(--ka-radius-md);background:var(--ka-surface);border:1px solid var(--ka-border);color:var(--ka-text-soft);font-size:15px}.ka-sidebar-actions .ka-player-icon-btn:hover{background:var(--ka-surface-alt);color:var(--ka-text)}.ka-sidebar-actions .ka-player-icon-btn.active{background:var(--ka-primary-bg);color:var(--ka-primary);border-color:color-mix(in srgb,var(--ka-primary) 35%,transparent)}.ka-sidebar-collapse{flex-shrink:0;width:32px;height:32px;border-radius:var(--ka-radius-md);border:none;background:transparent;color:#fff;font-size:17px;line-height:1;display:inline-flex;align-items:center;justify-content:center;transition:background .12s,color .12s}.ka-sidebar-collapse:hover{background:var(--ka-surface-alt)}.ka-sidebar-block{padding:12px 14px;border-bottom:1px solid var(--ka-border)}.ka-sidebar-block--toc{border-bottom:none;padding-bottom:0}.ka-sidebar-block-title{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--ka-text-muted);margin-bottom:8px}.ka-pagetoc-toggle{display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;border:none;background:transparent;padding:0;cursor:pointer;text-align:left;font:inherit;letter-spacing:inherit;text-transform:inherit;color:inherit}.ka-pagetoc-toggle:hover{color:var(--ka-text-soft)}.ka-pagetoc-chevron{flex-shrink:0;font-size:10px;color:var(--ka-text-muted);transition:transform .18s ease}.ka-pagetoc-chevron.open{transform:rotate(90deg)}.ka-pagetoc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:1px}.ka-pagetoc-link{width:100%;text-align:left;padding:5px 8px;border:none;border-left:2px solid transparent;background:transparent;color:var(--ka-text-soft);font-size:13px;line-height:1.4;border-radius:0 var(--ka-radius-sm) var(--ka-radius-sm) 0;transition:all .12s}.ka-pagetoc-link:hover{background:var(--ka-surface);color:var(--ka-primary);border-left-color:var(--ka-primary)}.ka-pagetoc-link--question{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}.ka-pagetoc-top{color:var(--ka-text-muted);font-size:12px}.ka-toc-progress{display:flex;flex-direction:column;gap:9px}.ka-toc-progress .ka-progress{height:7px}.ka-toc-progress-top{display:flex;align-items:baseline;justify-content:space-between;gap:8px}.ka-toc-progress-pct{font-size:17px;font-weight:700;color:var(--ka-ink);font-feature-settings:"tnum";font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1}.ka-toc-progress-pct-sign{font-size:11px;font-weight:700;margin-left:1px}.ka-toc-progress-frac{font-size:12px;font-weight:600;color:var(--ka-text-muted)}.ka-toc-done-all{color:var(--ka-ink);font-size:12.5px;font-weight:700;display:inline-flex;align-items:center;gap:5px}.ka-toc-filter{display:flex;gap:6px;padding:2px 0 0}.ka-toc-filter-chip{padding:5px 12px;border-radius:var(--ka-radius-pill);border:1px solid var(--ka-border-strong);background:var(--ka-surface);color:var(--ka-text-soft);font-size:12.5px;font-weight:600;transition:all .15s}.ka-toc-filter-chip:hover{border-color:var(--ka-primary);color:var(--ka-primary)}.ka-toc-filter-chip.active{background:var(--ka-primary);border-color:var(--ka-primary);color:#fff}.ka-toc-body{gap:2px;padding:6px 8px 0}.ka-toc-section{margin-bottom:8px}.ka-toc-section-head{width:100%;display:flex;align-items:center;gap:9px;padding:10px 8px 9px;background:transparent;border:none;text-align:left;border-radius:var(--ka-radius-sm);font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--ka-ink);transition:color .12s,background .12s}.ka-toc-section-head:not(:disabled):hover{background:var(--ka-surface)}.ka-toc-section-head:disabled{cursor:default}.ka-toc-section-chevron{flex-shrink:0;width:11px;text-align:center;font-size:11px;color:var(--ka-text-muted);transition:transform .18s ease}.ka-toc-section-chevron.open{transform:rotate(90deg)}.ka-toc-section-name{flex:1 1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ka-toc-section-count{flex-shrink:0;font-size:11px;font-weight:600;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;color:var(--ka-text-muted)}.ka-toc-section-mark{flex-shrink:0;width:18px;height:18px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;font-size:9px;background:transparent;color:var(--ka-ink)}.ka-toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}.ka-toc-section .ka-toc-list{padding-left:6px}.ka-toc-item{position:relative;width:100%;display:flex;align-items:center;gap:10px;padding:9px 10px;border:1px solid transparent;border-radius:var(--ka-radius-md);background:transparent;color:var(--ka-text);text-align:left;font-size:14px;line-height:1.35;transition:background .12s,color .12s}.ka-toc-item:hover:not(:disabled){background:var(--ka-surface)}.ka-toc-item:disabled{color:var(--ka-text-muted);cursor:default}.ka-toc-item.active{background:var(--ka-slate-bg);color:var(--ka-text);font-weight:600}.ka-toc-item:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(79,88,111,.25)}.ka-toc-status{flex-shrink:0;width:24px;height:24px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;font-size:11.5px;font-weight:700;border:1.5px solid var(--ka-border-strong);color:var(--ka-text-soft);background:var(--ka-surface)}.ka-toc-item--control .ka-toc-status,.ka-toc-status--done{border-color:transparent}.ka-toc-status--done{background:transparent;color:var(--ka-ink)}.ka-toc-status--current{background:var(--ka-primary);border-color:var(--ka-primary);color:#fff;font-size:9px}.ka-toc-item-title{flex:1 1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ka-toc-item--control .ka-toc-item-title{font-style:italic}.ka-toc-li{position:relative}.ka-toc-li--control{padding-left:16px}.ka-toc-item{padding-right:34px}.ka-toc-bm-btn{position:absolute;right:6px;top:50%;transform:translateY(-50%);width:26px;height:26px;padding:0;display:inline-flex;align-items:center;justify-content:center;border:none;background:transparent;border-radius:var(--ka-radius-sm);color:var(--ka-text-muted);font-size:14px;line-height:1;opacity:0;transition:opacity .12s,color .12s,background .12s}.ka-toc-bm-btn:focus-visible,.ka-toc-li:hover .ka-toc-bm-btn{opacity:1}.ka-toc-bm-btn:hover{background:var(--ka-primary-bg);color:var(--ka-primary)}.ka-toc-bm-btn.marked{opacity:1;color:var(--ka-primary)}.ka-toc-empty{margin:8px 10px;padding:12px 14px;font-size:13px;color:var(--ka-text-muted);line-height:1.5;background:var(--ka-surface);border:1px dashed var(--ka-border);border-radius:var(--ka-radius-md)}.ka-toc-empty i{color:var(--ka-primary);margin-right:4px}.ka-title-bm{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;padding:0;margin-left:2px;border:none;background:transparent;border-radius:var(--ka-radius-md);color:var(--ka-text-muted);font-size:17px;line-height:1;transition:color .12s,background .12s}.ka-title-bm:hover{background:var(--ka-primary-bg)}.ka-title-bm.marked,.ka-title-bm:hover{color:var(--ka-primary)}.ka-anchor{scroll-margin-top:80px}.ka-slide-status{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-bottom:10px;border-bottom:1px solid var(--ka-border);margin-bottom:4px}.ka-slide-status-left{display:inline-flex;align-items:center;gap:24px;flex-wrap:wrap;min-width:0}.ka-slide-status-right{gap:14px;flex-shrink:0}.ka-crumbs,.ka-slide-status-right{display:inline-flex;align-items:center}.ka-crumbs{gap:8px;min-width:0}.ka-crumb{font-size:13px;font-weight:600;white-space:nowrap}.ka-crumb,.ka-crumb-sep{color:var(--ka-text-muted)}.ka-crumb-sep{font-size:9px;opacity:.65}.ka-crumb-current{color:var(--ka-text)}.ka-slide-crumb{font-size:12.5px;color:var(--ka-text-muted);font-weight:600}.ka-slide-badge{display:inline-flex;align-items:center;gap:8px;font-size:11px;font-weight:700;text-transform:uppercase}.ka-slide-badge--done{color:var(--ka-text-soft)}.ka-slide-badge-check{width:18px;height:18px;border-radius:50%;background:var(--ka-success-light);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:10px;font-weight:700;letter-spacing:0}.ka-slide-badge--todo{padding:3px 10px;border-radius:var(--ka-radius-pill);background:var(--ka-surface-alt);color:var(--ka-text-muted)}.ka-slide-activity{font-size:12.5px;color:var(--ka-text-muted)}@media (max-width:1023px){.ka-course-sidebar{position:fixed;top:0;left:0;z-index:1300;height:100vh;background:var(--ka-surface);box-shadow:6px 0 28px rgba(28,32,40,.22)}.ka-player-layout[data-sidebar-open=false] .ka-course-sidebar{flex-basis:0;width:0}.ka-player-layout[data-sidebar-open=false] .ka-sidebar-rail{display:none}.ka-player-layout[data-sidebar-open=true] .ka-course-sidebar{flex-basis:320px;width:320px;max-width:86vw;border-right:1px solid var(--ka-border)}.ka-player-layout[data-sidebar-open=true] .ka-sidebar-backdrop{display:block;position:fixed;inset:0;z-index:1250;background:rgba(26,26,46,.42)}}.ka-modal-overlay{position:fixed;inset:0;background:rgba(26,26,46,.42);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);z-index:1400;display:flex;align-items:center;justify-content:center;animation:ka-fade-in .15s ease-out}.ka-modal{background:var(--ka-surface);border-radius:var(--ka-radius-lg);width:480px;max-width:92vw;box-shadow:0 24px 60px rgba(0,0,0,.22);animation:ka-modal-up .2s cubic-bezier(.22,1,.36,1)}@keyframes ka-modal-up{0%{transform:translateY(12px) scale(.98);opacity:.7}to{transform:translateY(0) scale(1);opacity:1}}.ka-modal-header{display:flex;align-items:center;justify-content:space-between;padding:18px 22px 12px;border-bottom:1px solid var(--ka-border)}.ka-modal-header h3{margin:0;font-size:17px;font-weight:700;color:var(--ka-text)}.ka-modal-close{width:30px;height:30px;border-radius:50%;border:none;background:var(--ka-surface-alt);color:var(--ka-text-muted);font-size:15px;line-height:1;display:inline-flex;align-items:center;justify-content:center;padding:0}.ka-modal-close:hover{background:#fbeee8;color:var(--ka-primary)}.ka-modal-body{padding:18px 22px;display:flex;flex-direction:column;gap:12px}.ka-modal-footer{padding:12px 22px 22px;display:flex;justify-content:flex-end;gap:10px}.ka-toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--ka-text);color:#fff;padding:12px 22px;border-radius:var(--ka-radius-lg);font-size:13.5px;font-weight:600;box-shadow:0 8px 24px rgba(0,0,0,.18);z-index:1100;animation:ka-toast-up .2s ease-out}@keyframes ka-toast-up{0%{transform:translate(-50%,12px);opacity:0}to{transform:translate(-50%);opacity:1}}.ka-confirm-overlay{position:fixed;inset:0;background:rgba(17,24,39,.45);display:flex;align-items:center;justify-content:center;padding:24px;z-index:1200;animation:ka-confirm-fade .15s ease-out}@keyframes ka-confirm-fade{0%{opacity:0}to{opacity:1}}.ka-toc-section-lock{display:inline-flex;align-items:center;gap:5px;margin-left:auto;font-size:11px;font-weight:600;color:#92400e;white-space:nowrap}.ka-toc-section.is-locked .ka-toc-section-name{color:#99a}.ka-toc-section.is-locked .ka-toc-item{opacity:.55}.ka-decl-check{display:flex;align-items:flex-start;gap:10px;text-align:left;font-size:14px;margin:14px 0 4px;cursor:pointer}.ka-decl-check input[type=checkbox]{margin-top:3px;width:16px;height:16px;accent-color:var(--ka-primary);cursor:pointer}.ka-security-banner{position:fixed;top:12px;left:50%;transform:translateX(-50%);background:#fef3c7;color:#92400e;border:1px solid #fcd34d;padding:8px 16px;border-radius:var(--ka-radius-lg);font-size:13px;font-weight:600;box-shadow:0 4px 14px rgba(0,0,0,.12);z-index:1150}.ka-confirm-modal{background:var(--ka-surface,#fff);border-radius:var(--ka-radius-lg,14px);box-shadow:0 20px 60px rgba(0,0,0,.25);max-width:440px;width:100%;padding:28px 28px 22px;text-align:center;animation:ka-confirm-pop .18s ease-out}@keyframes ka-confirm-pop{0%{transform:scale(.96);opacity:0}to{transform:scale(1);opacity:1}}.ka-confirm-icon{font-size:34px;color:var(--ka-warn,#b45309);margin-bottom:10px}.ka-confirm-title{font-size:18px;font-weight:700;margin:0 0 8px;color:var(--ka-text,#111827)}.ka-confirm-text{font-size:14px;line-height:1.55;color:var(--ka-text-soft,#4b5563);margin:0 0 22px}.ka-confirm-note{display:flex;align-items:flex-start;gap:8px;text-align:left;font-size:13.5px;line-height:1.5;color:#92400e;background:#fef3c7;border:1px solid #fcd34d;border-radius:var(--ka-radius-sm,4px);padding:10px 12px;margin:0 0 22px}.ka-confirm-note i{margin-top:2px;flex-shrink:0}.ka-confirm-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}.ka-confirm-actions .ka-btn,.ka-confirm-actions .ka-btn-ghost{min-width:140px}.ka-slide-missing-config{display:flex;flex-direction:column;gap:6px;padding:18px 22px;border-radius:var(--ka-radius-md);background:var(--ka-warn-bg);color:var(--ka-warn);border:1px solid var(--ka-warn-border);font-size:14px;line-height:1.5}.ka-slide-missing-config strong{font-size:14.5px}.ka-qbank-card{display:flex;gap:14px;align-items:flex-start;padding:18px 20px;border:1px solid var(--ka-border,#e4e6ea);border-radius:var(--ka-radius-md,10px);background:#fff}.ka-qbank-card-icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:color-mix(in srgb,var(--ka-primary,#dc6f44) 12%,#fff);color:var(--ka-primary,#dc6f44);font-size:18px;flex-shrink:0}.ka-qbank-card strong{display:block;font-size:15px;margin-bottom:4px}.ka-qbank-card p{margin:0;font-size:14px;line-height:1.45;color:var(--ka-text,#222)}.ka-qbank-card-meta{margin-top:6px!important;font-size:12.5px!important;color:var(--ka-text-muted,#6b7280)}.ka-slide-audio audio{width:100%;margin-top:8px}.ka-audio-caption{margin-top:14px}.ka-slide-image-img{display:block;max-width:100%;max-height:540px;margin:8px auto 0;border-radius:var(--ka-radius-md);border:1px solid var(--ka-border,#ececec)}.ka-image-caption{margin-top:14px;text-align:center;color:var(--ka-text-muted);font-size:13px}.ka-quote{margin:16px 0;padding:22px 28px;border-left:4px solid var(--ka-primary);background:var(--ka-primary-bg);border-radius:0 var(--ka-radius-md) var(--ka-radius-md) 0;font-size:18px;line-height:1.55;color:var(--ka-text)}.ka-quote p{margin:0 0 10px;font-style:italic}.ka-quote footer{font-size:13.5px;color:var(--ka-text-muted);font-weight:600}.ka-slide-code .ka-code-lang{display:inline-block;font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--ka-text-muted);padding:3px 8px;border-radius:var(--ka-radius-sm);background:var(--ka-surface-alt);margin-bottom:8px}.ka-code-pre{background:var(--ka-code-bg);color:var(--ka-code-text);border-radius:var(--ka-radius-md);padding:16px 18px;overflow-x:auto;font-size:13px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;line-height:1.55}.ka-code-pre code{white-space:pre}.ka-doc-iframe,.ka-embed-iframe{width:100%;height:560px;max-height:70vh;border:1px solid var(--ka-border,#ececec);border-radius:var(--ka-radius-md);background:#fff}.ka-block-embed{width:100%}.ka-block-embed iframe{display:block;width:100%;height:600px;max-width:100%;border:none;border-radius:var(--ka-radius-md);background:#fff}.ka-block-embed iframe.ka-embed-auto{height:auto;min-height:300px}.ka-slide-extras{display:flex;flex-direction:column;gap:16px;margin-top:24px}.ka-slide-extras:empty{display:none;margin-top:0}.ka-extra-media img,.ka-extra-media video{max-width:100%;max-height:320px;border-radius:var(--ka-radius-md);display:block;margin:0 auto}.ka-extra-media audio{width:100%}.ka-extra-media-video iframe{width:100%;aspect-ratio:16/9;border:0;border-radius:var(--ka-radius-md)}.ka-extra-text-card{padding:14px 18px;background:var(--ka-surface-alt);border-left:3px solid #5ca2bb;border-radius:0 var(--ka-radius-md) var(--ka-radius-md) 0}.ka-extra-hint{display:flex;flex-direction:column;gap:8px;margin-top:6px}.ka-extra-hint-btn{align-self:flex-start;padding:8px 14px;border-radius:18px;border:1.5px solid color-mix(in srgb,var(--ka-blue,var(--ka-info)) 40%,var(--ka-border));background:var(--ka-info-bg,var(--ka-surface-subtle));color:var(--ka-blue,var(--ka-info));font-weight:600;font-size:13px;cursor:pointer;transition:all .15s}.ka-extra-hint-btn:hover{background:var(--ka-info-bg);color:var(--ka-info);border-color:var(--ka-blue,var(--ka-info))}.ka-extra-hint-body{padding:12px 16px;border-radius:var(--ka-radius-md);border:2px dashed color-mix(in srgb,var(--ka-blue,var(--ka-info)) 45%,var(--ka-border));background:var(--ka-info-bg,transparent)}.ka-extra-info{padding:16px 20px;border-radius:var(--ka-radius-md);background:var(--ka-surface-alt);border:1px solid var(--ka-border,#ececec)}.ka-extra-info-prompt{display:flex;gap:10px;align-items:flex-start;margin-bottom:10px}.ka-extra-info-icon{font-size:18px;line-height:1;flex-shrink:0}.ka-extra-info-textarea{width:100%;padding:10px 12px;border:1.5px solid var(--ka-border,#ececec);border-radius:var(--ka-radius-md);font-family:inherit;font-size:14px;background:#fff;resize:vertical}.ka-extra-info-textarea:focus{outline:none;border-color:var(--ka-primary)}.ka-extra-info-actions{display:flex;align-items:center;gap:12px;margin-top:8px}.ka-freetext-reasoning{margin-top:8px;padding:10px 14px;background:var(--ka-surface-alt);border-left:3px solid #5ca2bb;border-radius:0 var(--ka-radius-md) var(--ka-radius-md) 0;color:#2c4a5c;font-size:13.5px;font-style:italic;line-height:1.5}.ka-freetext-reasoning:before{content:"✨ ";font-style:normal}.ka-spinner{width:14px;height:14px;vertical-align:-2px;border:2px solid;border-top:2px solid transparent}.ka-slide-hotspot .ka-hotspot-prompt{margin-bottom:8px}.ka-slide-hotspot .ka-hotspot-help{margin-bottom:12px;font-size:14px}.ka-hotspot-stage{width:100%}.ka-hotspot-submit{margin-top:12px}.ka-hotspot-image-wrap{position:relative;display:inline-block;max-width:100%;border-radius:var(--ka-radius-md);overflow:hidden}.ka-hotspot-image{display:block;width:100%;height:auto;-webkit-user-select:none;-moz-user-select:none;user-select:none;-webkit-user-drag:none}.ka-cursor-crosshair{cursor:crosshair}.ka-hotspot-area-overlay{border:2px solid var(--ka-success-light);background:rgba(40,167,69,.18);box-shadow:inset 0 0 0 2px rgba(255,255,255,.5)}.ka-hotspot-area-label,.ka-hotspot-area-overlay{position:absolute;pointer-events:none;border-radius:var(--ka-radius-sm)}.ka-hotspot-area-label{padding:2px 7px;background:rgba(20,30,25,.82);color:#fff;font-size:12px;font-weight:600;line-height:1.3;white-space:nowrap;z-index:2}.ka-hotspot-click-marker{position:absolute;width:20px;height:20px;border-radius:50%;transform:translate(-50%,-50%);border:3px solid #fff;pointer-events:none;box-shadow:0 2px 6px rgba(0,0,0,.3)}.ka-hotspot-click-marker.ka-correct{background:var(--ka-success-light)}.ka-hotspot-click-marker.ka-wrong{background:var(--ka-danger)}.ka-clarify-box{margin-top:14px;padding:14px 16px;background:linear-gradient(135deg,var(--ka-primary-bg) 0,#fff 100%);border:1px solid #e2e4e8;border-left:4px solid var(--ka-primary);border-radius:var(--ka-radius-md)}.ka-clarify-header{display:flex;gap:8px;align-items:center;margin-bottom:8px}.ka-clarify-header strong,.ka-clarify-prompt{font-size:14px;color:var(--ka-text)}.ka-clarify-prompt{margin:6px 0 12px;line-height:1.5}.ka-spinner{display:inline-block;width:12px;height:12px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:ka-spin .8s linear infinite;margin-right:6px;vertical-align:middle}@keyframes ka-spin{to{transform:rotate(1turn)}}.ka-btn-secondary{padding:10px 18px;border:1.5px solid var(--ka-border);background:#fff;color:var(--ka-text);border-radius:var(--ka-radius-md);font-weight:600;font-size:14px;cursor:pointer}.ka-btn-secondary:hover:not(:disabled){border-color:var(--ka-primary);color:var(--ka-primary)}.ka-btn-secondary:disabled{opacity:.6;cursor:default}:root{--ka-red:#d25f3e;--ka-cta:var(--ka-blue);--ka-cta-hover:#4b8fa8;--ka-accept:var(--ka-green);--ka-accept-hover:#5aa35a;--ka-font-display:"Plus Jakarta Sans",var(--ka-font-sans);--ka-yellow-soft:color-mix(in srgb,var(--ka-yellow) 32%,#fff)}.ka-btn-cta{background:var(--ka-cta);color:#fff;border-radius:var(--ka-radius-pill);box-shadow:none}.ka-btn-cta:hover{background:var(--ka-cta-hover);transform:none;box-shadow:none;text-decoration:none}.ka-btn-cta:disabled{background:#e2e4e8;color:#9aa0a6}.ka-btn-accept{background:var(--ka-accept);color:#fff;border-radius:var(--ka-radius-pill);box-shadow:none}.ka-btn-accept:hover{background:var(--ka-accept-hover);transform:none;box-shadow:none;text-decoration:none}.ka-btn-accept:disabled{background:#e2e4e8;color:#9aa0a6}.ka-btn-sm{padding:6px 16px;min-height:32px;min-width:5.75rem;font-size:13px}.ka-portal .ka-btn-ghost{background:#fff;color:var(--ka-ink);border:1px solid var(--ka-border-strong);border-radius:var(--ka-radius-pill)}.ka-portal .ka-btn-ghost:hover{background:#fff;color:var(--ka-ink);border-color:var(--ka-border-strong)}.ka-tile-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:18px}.ka-portal .ka-tile-action{margin-top:0}.ka-portal .ka-card>.ka-btn,.ka-portal .ka-card>.ka-btn-ghost,.ka-portal .ka-card>.ka-inline-actions,.ka-portal .ka-card>.ka-tile-actions,.ka-portal .ka-card>a.ka-btn,.ka-portal .ka-card>a.ka-btn-ghost{margin-top:auto;align-self:flex-start}.ka-portal .ka-card>.ka-inline-actions{align-self:stretch}.ka-portal{--ka-type-title:600;--ka-type-label:500;--ka-type-body:400}.ka-portal .ka-tile-title,.ka-portal h1,.ka-portal h2,.ka-portal h3{font-family:inherit;font-weight:var(--ka-type-title);letter-spacing:-.015em}.ka-portal h1{font-size:24px}.ka-portal h2{font-size:16px}.ka-portal .ka-tile-title,.ka-portal h3{font-size:15px}.ka-portal .ka-kicker{font-size:11px;font-weight:var(--ka-type-label);letter-spacing:.06em;text-transform:uppercase;color:var(--ka-text-muted)}.ka-portal .ka-muted{font-weight:var(--ka-type-body);color:var(--ka-text-muted)}.ka-portal .ka-btn,.ka-portal .ka-btn-ghost,.ka-portal .ka-btn-ink{font-weight:var(--ka-type-label)}.ka-portal .ka-course-title{font-size:15px;font-weight:var(--ka-type-title)}.ka-portal .ka-badge,.ka-portal .ka-course-meta-tag,.ka-portal .ka-details-toggle,.ka-portal .ka-link-btn,.ka-portal .ka-mode-pill,.ka-portal .ka-profile-dl dd,.ka-portal .ka-shortcut{font-weight:var(--ka-type-label)}.ka-portal .ka-card,.ka-portal .ka-hero-card,.ka-portal .ka-list-row,.ka-portal .ka-notice,.ka-portal .ka-shortcut,.ka-portal .ka-tile:not(.ka-tile-plain){box-shadow:none}.ka-portal .ka-hero-card{background:var(--ka-surface);border:1px solid var(--ka-border)}.ka-portal .ka-tile:not(.ka-tile-plain){padding:16px}.ka-portal .ka-tile-classroom,.ka-portal .ka-tile-elearning{background:var(--ka-surface)}.ka-provider-logo{display:grid;place-items:flex-start;align-content:center;height:88px;margin:0 -16px 14px;padding:12px 56px 12px 20px;background:#fff;border-bottom:1px solid var(--ka-border)}.ka-provider-logo.is-banded{border-bottom-color:transparent}.ka-card>.ka-provider-logo:not(.is-compact){margin:-20px -22px 16px}.ka-provider-logo img{max-height:50px;max-width:185px;width:auto;height:auto;object-fit:contain}.ka-provider-logo.is-compact{height:40px;margin:0 0 12px;padding:0;justify-items:start;background:transparent;border:0}.ka-provider-logo.is-compact img{max-height:36px}.ka-provider-logo.is-inline{display:grid;place-items:center;flex:none;height:32px;max-width:150px;margin:0;padding:4px 7px;background:#fff;border-radius:6px;border:none}.ka-provider-logo.is-inline img{max-height:30px;max-width:140px}.ka-provider-logo span[aria-hidden]{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:#fff;color:var(--ka-ink);font-weight:600}.ka-favorite-wrap .ka-tile-top{padding-right:36px}.ka-dash-split{display:grid;grid-template-columns:minmax(0,1fr) 340px;grid-gap:20px;gap:20px;align-items:start}.ka-portal .ka-card.ka-profile-card{flex-direction:row;align-items:center;gap:18px;margin-bottom:22px}.ka-profile-card-copy{flex:1 1;min-width:0}.ka-profile-card-copy h1{margin:0 0 4px}.ka-profile-card-copy .ka-muted{margin:0}.ka-profile-card-actions{display:flex;flex-wrap:wrap;gap:8px;margin-left:auto}.ka-portal .ka-btn,.ka-portal .ka-btn-ghost{white-space:nowrap;flex-shrink:0}.ka-catalog{margin-bottom:46px}.ka-catalog .ka-kicker{margin-bottom:10px}.ka-portal .ka-card-head{align-items:center}.ka-portal .ka-card-head .ka-kicker{margin:0}.ka-catalog-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:16px;gap:16px;align-items:stretch}.ka-portal .ka-card.ka-catalog-card{height:100%}.ka-catalog-all{font-size:13px;font-weight:var(--ka-type-label);color:var(--ka-text-muted)}.ka-catalog-all:hover{color:var(--ka-text-soft)}.ka-catalog-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}.ka-catalog-list a{display:block;padding:6px 0;color:var(--ka-text);font-size:14px;font-weight:var(--ka-type-body)}.ka-board,.ka-catalog-list a:hover{color:var(--ka-ink)}.ka-board{position:-webkit-sticky;position:sticky;top:76px;display:flex;flex-direction:column;gap:18px;padding:20px 20px 22px;background:#fffffff2;border-radius:var(--ka-radius-lg)}.ka-board-head{display:flex;justify-content:space-between;align-items:center;gap:10px}.ka-board-head h2{margin:0;font-size:16px;color:var(--ka-ink)}.ka-board .ka-btn-ghost{color:var(--ka-text-soft);border-color:var(--ka-border);background:transparent;font-weight:var(--ka-type-label)}.ka-board .ka-btn-ghost:hover{background:transparent;color:var(--ka-ink);border-color:var(--ka-border-strong)}.ka-board-section{display:flex;flex-direction:column;gap:8px}.ka-board-section h3{margin:10px 0;font-size:11px;font-weight:var(--ka-type-label);letter-spacing:.06em;text-transform:uppercase;color:var(--ka-text-muted);border-bottom:1px solid var(--ka-border)}.ka-board-list{display:flex;flex-direction:column;gap:12px}.ka-board-alert,.ka-board-notice{display:flex;gap:10px;align-items:flex-start;padding:0;border:0;background:none;border-radius:0;color:inherit}.ka-board-alert:hover,.ka-board-notice:hover{text-decoration:none}.ka-board-alert i{margin-top:3px;color:var(--ka-text-soft)}.ka-board-notice i{margin-top:3px;color:var(--ka-text-muted)}.ka-board-alert>div,.ka-board-notice>div{flex:1 1;min-width:0}.ka-board-alert .ka-unread-dot,.ka-board-notice .ka-unread-dot{margin-top:0}.ka-board-alert strong,.ka-board-notice strong{display:block;font-size:14px;font-weight:var(--ka-type-label);color:var(--ka-ink)}.ka-board-alert p,.ka-board-notice p{margin:2px 0 0;font-size:13px;font-weight:var(--ka-type-body);color:var(--ka-text-soft)}.ka-board-notice span{display:block;margin-top:4px;font-size:12px;color:var(--ka-text-muted)}.ka-board-empty{margin:0;color:var(--ka-text-soft)}.ka-invite-grid{display:grid;grid-template-columns:1fr;grid-gap:20px;gap:20px}.ka-invite-card{display:flex;flex-direction:column;align-items:flex-start;gap:2px;padding:12px 14px 14px;background:#fff;border:1px solid var(--ka-border);border-radius:var(--ka-radius-md)}.ka-board .ka-invite-card{padding:0;background:none;border:0;border-radius:0;color:var(--ka-ink)}.ka-invite-card strong{font-size:14px;font-weight:var(--ka-type-label)}.ka-invite-card p{margin:0;font-size:13px;font-weight:var(--ka-type-body);color:var(--ka-text-soft)}.ka-board .ka-invite-card p{color:var(--ka-text)}.ka-invite-card span{font-size:12px}.ka-board .ka-invite-card span{color:var(--ka-text-muted)}.ka-invite-card .ka-btn{margin-top:8px;margin-left:-8px;font-weight:var(--ka-type-label)}.ka-course-layout{display:grid;grid-template-columns:1fr;grid-gap:16px;gap:16px;align-items:start}.ka-course-layout.has-sessions{grid-template-columns:minmax(0,1.15fr) minmax(260px,.85fr)}.ka-course-detail-body{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-top:4px}.ka-course-detail-body .ka-profile-dl{margin:0;flex:1 1;min-width:0}.ka-course-detail-body .ka-inline-actions{margin:0;padding:0;flex-shrink:0;flex-wrap:wrap;justify-content:flex-end}.ka-sessions h3{margin:0 0 20px;font-size:18px}@media (min-width:901px){.ka-course-layout.has-sessions .ka-sessions{margin-top:0}}.ka-sessions ol{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:0}.ka-sessions li{display:flex;justify-content:space-between;gap:12px;align-items:baseline;padding:10px 0;border-bottom:1px solid var(--ka-border)}.ka-sessions li:last-child{border-bottom:0;padding-bottom:0}.ka-sessions li:first-child{padding-top:0}.ka-sessions li>div{display:flex;flex-direction:column;gap:2px;min-width:0}.ka-sessions li strong{font-size:14px;font-weight:var(--ka-type-label)}.ka-sessions li span{font-size:13px;color:var(--ka-text-soft)}.ka-sessions li>.ka-muted{flex-shrink:0;max-width:42%;text-align:right;font-size:12px}@media (max-width:900px){.ka-course-layout.has-sessions{grid-template-columns:1fr}}@media (max-width:640px){.ka-course-detail-body{flex-direction:column;align-items:stretch;gap:16px}.ka-course-detail-body .ka-inline-actions{justify-content:flex-start;padding-top:4px}.ka-sessions li{flex-direction:column;gap:4px}.ka-sessions li>.ka-muted{max-width:none;text-align:left}}.ka-stat-grid,.ka-widgets{margin-bottom:22px}.ka-stat-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));grid-gap:12px;gap:12px}.ka-stat{display:flex;flex-direction:column;align-items:center;gap:10px;min-height:0;padding:16px 18px;background:#fff;border:1px solid var(--ka-border);border-radius:var(--ka-radius-md);color:inherit}.ka-stat:hover{border-color:var(--ka-border-strong);text-decoration:none}.ka-stat-icon{display:grid;place-items:flex-start;width:28px;height:28px;color:var(--ka-box-btn,var(--ka-ink));box-shadow:none;justify-content:start;justify-items:start;margin:0 0 16px 5px}.ka-stat-icon i{font-size:32px}.ka-stat-copy{display:flex;flex-direction:row;align-items:baseline;gap:6px;min-width:0}.ka-stat strong{font-family:inherit;font-size:18px;font-weight:var(--ka-type-title);letter-spacing:-.02em;line-height:1}.ka-stat-copy>span{font-size:13px;font-weight:var(--ka-type-label);color:var(--ka-text-muted);line-height:1.25}.ka-agenda,.ka-progress-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px;flex:1 1}.ka-progress-row{display:grid;grid-template-columns:1fr auto;grid-gap:4px 12px;gap:4px 12px;color:inherit}.ka-progress-row:hover{text-decoration:none}.ka-progress-row-title{font-size:14px;font-weight:var(--ka-type-label)}.ka-progress-row-value{font-size:13px;font-weight:var(--ka-type-label);color:var(--ka-text-muted)}.ka-progress-row .ka-progress-track{grid-column:1/-1;margin:0}.ka-agenda{flex:none}.ka-agenda a{display:flex;flex-direction:column;gap:2px;color:inherit}.ka-agenda a:hover{text-decoration:none}.ka-agenda-title{font-size:14px;font-weight:var(--ka-type-label)}.ka-agenda-date{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:var(--ka-type-body);color:var(--ka-text-soft)}.ka-agenda-date i{font-size:12px}.ka-agenda-place{font-size:12px;font-weight:var(--ka-type-body);color:var(--ka-text-muted)}.ka-widget-note{margin:16px 0 0;font-size:13px;font-weight:var(--ka-type-body);color:var(--ka-text-soft)}.ka-portal .ka-card{display:flex;flex-direction:column;padding:20px 22px;background:var(--ka-surface);border:1px solid var(--ka-border);border-radius:var(--ka-radius-md)}.ka-portal .ka-card,.ka-portal .ka-hero-card,.ka-portal .ka-tile:not(.ka-tile-plain){overflow:hidden}.ka-portal .ka-card,.ka-portal .ka-hero-card,.ka-portal .ka-invite-card,.ka-portal .ka-stat,.ka-portal .ka-tile:not(.ka-tile-plain){--ka-box-btn:var(--ka-ink);--ka-box-btn-hover:#232a3a;--ka-box-btn-ink:#fff}.ka-portal .ka-stat.ka-accent-orange{--ka-box-btn:var(--ka-orange)}.ka-portal .ka-stat.ka-accent-blue{--ka-box-btn:var(--ka-blue)}.ka-portal .ka-stat.ka-accent-green{--ka-box-btn:var(--ka-green)}.ka-portal .ka-stat.ka-accent-yellow{--ka-box-btn:var(--ka-yellow);--ka-box-btn-ink:var(--ka-ink)}.ka-portal .ka-btn,.ka-portal .ka-btn-ghost,.ka-portal .ka-btn-ink{border-radius:var(--ka-radius-pill)}.ka-portal .ka-entry-form .ka-btn,.ka-portal .ka-entry-form .ka-btn-ink,.ka-portal .ka-form .ka-btn,.ka-portal .ka-form .ka-btn-ink,.ka-portal form .ka-btn,.ka-portal form .ka-btn-ghost,.ka-portal form .ka-btn-ink{border-radius:var(--ka-radius-md)}.ka-portal .ka-card .ka-btn:not(.ka-btn-ghost):not(:disabled),.ka-portal .ka-invite-card .ka-btn:not(.ka-btn-ghost):not(:disabled),.ka-portal .ka-tile:not(.ka-tile-plain) .ka-btn:not(.ka-btn-ghost):not(:disabled){background:#fff;color:var(--ka-ink);border:1px solid var(--ka-border-strong);border-radius:var(--ka-radius-pill);box-shadow:none}.ka-portal .ka-card .ka-btn:not(.ka-btn-ghost):not(:disabled):hover,.ka-portal .ka-invite-card .ka-btn:not(.ka-btn-ghost):not(:disabled):hover,.ka-portal .ka-tile:not(.ka-tile-plain) .ka-btn:not(.ka-btn-ghost):not(:disabled):hover{background:#232a3a;color:#fff;transform:none;box-shadow:none}.ka-portal .ka-hero-card .ka-btn:not(.ka-btn-ghost):not(:disabled),.ka-portal .ka-profile-card .ka-btn:not(.ka-btn-ghost):not(:disabled){background:var(--ka-primary);color:#fff;border-radius:var(--ka-radius-pill);border:0;box-shadow:none}.ka-portal .ka-hero-card .ka-btn:not(.ka-btn-ghost):not(:disabled):hover,.ka-portal .ka-profile-card .ka-btn:not(.ka-btn-ghost):not(:disabled):hover{background:var(--ka-primary-hover);color:#fff;transform:none;box-shadow:none}.ka-portal .ka-progress-bar{background:color-mix(in srgb,var(--ka-ink) 20%,var(--ka-blue) 18%)}.ka-portal .ka-shortcut{background:var(--ka-surface)}.ka-portal .ka-shortcut i{color:var(--ka-text-muted)}.ka-portal .ka-shortcut:hover{transform:none;border-color:var(--ka-border-strong)}.ka-portal .ka-shortcut:hover i{color:var(--ka-text)}.ka-portal .ka-notice{background:var(--ka-yellow-soft);color:var(--ka-ink);border:1px solid color-mix(in srgb,var(--ka-yellow) 55%,var(--ka-border))}.ka-portal .ka-notice i{color:var(--ka-ink)}.ka-portal .ka-badge{border-radius:var(--ka-radius-pill)}.ka-sg-intro{max-width:640px;margin-bottom:28px}.ka-sg-swatches{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));grid-gap:12px;gap:12px;margin-bottom:28px}.ka-sg-swatch{background:var(--ka-surface);border:1px solid var(--ka-border);border-radius:var(--ka-radius-md);overflow:hidden}.ka-sg-swatch-chip{height:72px}.ka-sg-swatch-meta{padding:10px 12px 12px}.ka-sg-swatch-meta strong{display:block;font-size:14px}.ka-sg-swatch-meta code{font-size:12px;color:var(--ka-text-muted)}.ka-sg-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:16px}.ka-sg-rules{margin:0 0 28px;padding-left:18px;color:var(--ka-text-soft)}.ka-sg-rules li{margin-bottom:8px}.ka-sidebar-admin{display:flex;flex-direction:column;gap:2px;margin-top:auto;padding:12px 12px 16px;border-top:1px solid var(--ka-border)}.ka-sidebar-admin-label{margin:0 8px 4px;font-size:11px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;color:var(--ka-text-muted)}.ka-app.is-nav-collapsed .ka-sidebar-admin-label{display:none}.ka-admin-kpi-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:12px;gap:12px;margin:18px 0 22px}.ka-admin-kpi{align-items:flex-start;min-height:0;cursor:default}.ka-admin-kpi:hover{border-color:var(--ka-border);text-decoration:none}.ka-admin-kpi-hint{margin:4px 0 0;font-size:12px;font-weight:400;color:var(--ka-text-muted);line-height:1.35;text-align:left;width:100%}.ka-admin-panels{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:16px;gap:16px;align-items:start}.ka-admin-panels h2{margin:0 0 12px}.ka-admin-metric-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}.ka-admin-metric-main{display:flex;justify-content:space-between;align-items:baseline;gap:12px}.ka-admin-metric-label{font-size:14px;font-weight:500;color:var(--ka-text)}.ka-admin-metric-value{font-size:16px;font-weight:600;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;color:var(--ka-ink)}.ka-admin-metric .ka-muted{margin:2px 0 0;font-size:12px}.ka-admin-panel-lead{margin:-4px 0 14px;font-size:13px}.ka-admin-panel-wide{grid-column:1/-1}.ka-admin-funnel{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}.ka-admin-funnel-meta{display:flex;justify-content:space-between;align-items:baseline;gap:12px;font-size:14px;font-weight:500}.ka-admin-funnel-meta strong{font-size:16px;font-weight:600;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.ka-admin-funnel-track{margin-top:6px;height:10px;border-radius:var(--ka-radius-pill);background:var(--ka-slate-bg);overflow:hidden}.ka-admin-funnel-fill{height:100%;border-radius:inherit;background:color-mix(in srgb,var(--ka-ink) 42%,var(--ka-blue) 18%)}.ka-admin-funnel-step .ka-muted{margin:4px 0 0;font-size:12px}.ka-admin-split{display:flex;height:12px;margin:0 0 16px;border-radius:var(--ka-radius-pill);overflow:hidden;background:var(--ka-slate-bg)}.ka-admin-split-elearning{background:var(--ka-blue)}.ka-admin-split-classroom{background:var(--ka-orange)}.ka-admin-rank-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}.ka-admin-rank-row{display:flex;align-items:flex-start;gap:10px}.ka-admin-rank-pos{flex:none;width:1.25rem;font-size:12px;font-weight:500;color:var(--ka-text-muted);line-height:1.4}.ka-admin-rank-copy{flex:1 1;min-width:0;display:flex;flex-direction:column;gap:1px}.ka-admin-rank-copy strong{font-size:14px;font-weight:500;color:var(--ka-ink)}.ka-admin-rank-copy .ka-muted{margin:0;font-size:12px}.ka-admin-rank-count{flex:none;font-size:14px;font-weight:600;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.ka-admin-rank-bar{margin:6px 0 0 1.9rem;height:4px;border-radius:var(--ka-radius-pill);background:var(--ka-slate-bg);overflow:hidden}.ka-admin-rank-bar span{display:block;height:100%;border-radius:inherit;background:color-mix(in srgb,var(--ka-ink) 28%,var(--ka-border-strong))}.ka-admin-panels-4{grid-template-columns:repeat(2,minmax(0,1fr))}@media (max-width:1100px){.ka-admin-kpi-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.ka-admin-panels,.ka-admin-panels-4{grid-template-columns:1fr}}@media (max-width:640px){.ka-admin-kpi-grid{grid-template-columns:1fr}}.ka-guide{margin-bottom:8px}.ka-section-title{margin:28px 0 12px;font-size:18px}.ka-guide-card{min-height:188px}.ka-guide-card h2{font-size:18px}.ka-guide-card .ka-muted{flex:1 1;margin:0;line-height:1.5}.ka-guide-card>.ka-btn{margin-top:auto;align-self:flex-start}@media (max-width:1100px){.ka-dash-split{grid-template-columns:1fr}.ka-board{position:static}.ka-stat-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.ka-invite-grid[data-count="2"]{grid-template-columns:repeat(2,1fr)}.ka-invite-grid[data-count="3"]{grid-template-columns:repeat(3,1fr)}}@media (max-width:720px){.ka-portal .ka-card.ka-profile-card{flex-wrap:wrap}.ka-profile-card-actions{margin-left:0}.ka-stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.ka-catalog-grid,.ka-invite-grid[data-count="2"],.ka-invite-grid[data-count="3"],.ka-portal .ka-dash-grid{grid-template-columns:1fr}}