.kc-library{--kc-bg:#fff;--kc-soft:#f4f6f8;--kc-ink:#17344b;--kc-muted:#586b7b;--kc-line:#dce4e9;--kc-accent:#b84b20;--kc-warm:#fff5ec;--kc-complete:#207451;--kc-sticky-top:16px;max-width:1480px;color:var(--kc-ink);font:inherit;letter-spacing:normal;text-align:left;width:100%;min-width:0;margin:auto;padding:24px 16px 48px;font-size:16px;font-weight:400;line-height:1.65;container:kc/inline-size}.kc-library *{box-sizing:border-box}.kc-library a{color:inherit;text-decoration:none}.kc-library :is(button,input,select){font:inherit}.kc-library :is(button,a,select,summary){touch-action:manipulation}.kc-library :is(button,a,input,select,summary,[tabindex]):focus-visible{outline:3px solid var(--kc-accent);outline-offset:3px}.kc-library :is(h1,h2,h3,p){margin:0}.kc-library :is(h1,h2,h3){color:var(--kc-ink)}.kc-library :is(h1,h2)[tabindex="-1"]:focus{outline:none}.kc-library button{cursor:pointer}.kc-library :is(button,a,select){transition:background-color .15s,border-color .15s,color .15s}.kc-library .kc-resume{color:var(--kc-accent);align-items:center;gap:7px;min-height:44px;font-size:12px;display:inline-flex}.kc-course-grid{grid-template-areas:"watch""playlist""reading";align-items:start;gap:22px;display:grid}.kc-watch{grid-area:watch;min-width:0}.kc-reading{grid-area:reading;min-width:0}.kc-eyebrow{letter-spacing:.08em;color:var(--kc-muted);flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:10px;font-weight:650;line-height:1.6;display:flex}.kc-eyebrow>span{letter-spacing:.02em;font-weight:450}.kc-library .kc-lesson-title{letter-spacing:-.035em;margin:7px 0 8px;font-size:clamp(26px,3vw,36px);font-weight:650;line-height:1.25}.kc-library .kc-lead{color:var(--kc-muted);margin-bottom:20px;font-size:14px;line-height:1.7}.kc-video-frame{border:1px solid var(--kc-line);aspect-ratio:16/9;background:#0b1724;border-radius:10px;overflow:hidden}.kc-video-frame video{object-fit:contain;width:100%;height:100%;display:block}.kc-player-tools{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 16px;margin:10px 0 6px;display:flex}.kc-player-tools p{color:var(--kc-muted);align-items:center;gap:7px;font-size:11px;display:inline-flex}.kc-player-tools label{color:var(--kc-muted);align-items:center;gap:8px;width:100%;font-size:12px;display:flex}.kc-library .kc-small{color:var(--kc-muted);font-size:12px;line-height:1.75}.kc-primary,.kc-secondary{border:1px solid var(--kc-line);border-radius:7px;justify-content:center;align-items:center;gap:9px;min-height:46px;padding:10px 16px;font-size:14px;font-weight:600;line-height:1.5;display:inline-flex}.kc-library .kc-primary{color:#fff;background:#b94b21;border-color:#b94b21}.kc-library .kc-primary:hover{background:#963a16;border-color:#963a16}.kc-secondary{background:var(--kc-bg);color:var(--kc-ink)}.kc-secondary:hover{background:var(--kc-soft)}.kc-mobile-lessons{text-align:left;justify-content:space-between;width:100%;margin-top:18px;display:flex}.kc-mobile-lessons>span{flex:1}.kc-mobile-lessons small{color:var(--kc-muted);margin-top:2px;font-size:11px;font-weight:400;display:block}.kc-library .is-rotated{transform:rotate(180deg)}.kc-playlist{border:1px solid var(--kc-line);background:var(--kc-bg);border-radius:10px;flex-direction:column;grid-area:playlist;min-width:0;min-height:0;max-height:min(72dvh,640px);display:none;overflow:hidden}.kc-playlist.is-mobile-open{display:flex}.kc-playlist-header{flex-shrink:0;padding:18px 16px 14px}.kc-playlist-heading{justify-content:space-between;align-items:center;gap:10px;display:flex}.kc-playlist-heading>div{flex:1;min-width:0}.kc-playlist-title{justify-content:space-between;align-items:center;gap:8px;display:flex}.kc-playlist-title .kc-resume{flex-shrink:0;gap:4px;min-height:32px;font-size:11px}.kc-library .kc-playlist-heading h2{scroll-margin-top:calc(var(--kc-sticky-top) + 16px);letter-spacing:-.02em;font-size:18px;font-weight:650;line-height:1.4}.kc-library .kc-playlist-heading p{color:var(--kc-muted);margin-top:3px;font-size:12px}.kc-close-playlist{border:1px solid var(--kc-line);background:var(--kc-bg);width:44px;height:44px;color:var(--kc-ink);border-radius:7px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.kc-progress{color:var(--kc-muted);align-items:center;gap:10px;margin:14px 0;font-size:11px;display:flex}.kc-progress>span{white-space:nowrap}.kc-progress progress{min-width:40px;height:5px;accent-color:var(--kc-accent);background:var(--kc-line);border:0;border-radius:4px;flex:1}.kc-progress progress::-webkit-progress-bar{background:var(--kc-line);border-radius:4px}.kc-progress progress::-webkit-progress-value{background:var(--kc-accent);border-radius:4px}.kc-playlist-scroll{overscroll-behavior:contain;scrollbar-gutter:stable;border-top:1px solid var(--kc-line);flex:1;min-height:0;overflow-y:auto}.kc-playlist-scroll:focus-visible{outline-offset:-3px!important}.kc-course-chapter{border-top:1px solid var(--kc-line)}.kc-course-chapter:first-child{border-top:0}.kc-chapter-toggle{text-align:left;background:var(--kc-bg);width:100%;min-height:70px;color:var(--kc-ink);border:0;grid-template-columns:24px minmax(0,1fr) 16px;align-items:start;gap:10px;padding:14px 15px;display:grid}.kc-chapter-toggle:hover,.is-current-chapter>.kc-chapter-toggle{background:var(--kc-soft)}.kc-chapter-number{color:var(--kc-muted);font-variant-numeric:tabular-nums;padding-top:1px;font-size:12px;font-weight:500;line-height:1.7}.is-current-chapter .kc-chapter-number{color:var(--kc-ink);font-weight:650}.kc-chapter-name{font-size:16px;font-weight:600;line-height:1.6}.kc-chapter-name small{color:var(--kc-muted);margin-top:3px;font-size:11px;font-weight:400;display:block}.kc-chapter-toggle>svg{color:var(--kc-muted);margin-top:4px}.kc-chapter-lessons{padding:0 7px 8px}.kc-chapter-lessons[hidden]{display:none}.kc-library .kc-playlist-link{border-left:2px solid #0000;border-radius:5px;grid-template-columns:17px minmax(0,1fr) auto;align-items:center;gap:9px;min-height:62px;padding:10px 9px;display:grid}.kc-playlist-link:hover{background:var(--kc-soft)}.kc-library .kc-playlist-link[aria-current=page]{background:var(--kc-warm);border-left-color:var(--kc-accent);color:var(--kc-ink);font-weight:600}.kc-lesson-state{color:var(--kc-muted);align-items:center;display:flex}.kc-playlist-link[aria-current=page] .kc-lesson-state{color:var(--kc-accent)}.kc-playlist-link.is-complete .kc-lesson-state{color:var(--kc-complete)}.kc-lesson-dot{border:1px solid var(--kc-muted);border-radius:50%;width:6px;height:6px;margin-left:4px}.kc-playlist-lesson-name{font-size:16px;line-height:1.5}.kc-playlist-lesson-name small{color:var(--kc-muted);margin-top:3px;font-size:10px;display:block}.kc-lesson-time{color:var(--kc-muted);font-variant-numeric:tabular-nums;white-space:nowrap;font-size:11px}.kc-library .kc-progress-note{border-top:1px solid var(--kc-line);color:var(--kc-muted);flex-shrink:0;padding:10px 16px;font-size:11px;line-height:1.5}.kc-section-heading{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:10px;display:flex}.kc-library .kc-section-heading h2{letter-spacing:-.03em;font-size:23px;font-weight:650;line-height:1.4}.kc-section-heading>span{color:var(--kc-muted);font-size:12px}.kc-library .kc-steps-intro{color:var(--kc-muted);margin-top:6px;font-size:14px}.kc-steps ol{margin:18px 0 26px;padding:0;list-style:none}.kc-steps li{border-top:1px solid var(--kc-line);grid-template-columns:28px minmax(0,1fr);align-items:start;gap:10px 14px;padding:16px 0;display:grid}.kc-step-number{height:28px;color:var(--kc-ink);background:var(--kc-warm);border-radius:6px;justify-content:center;align-items:center;font-size:12px;font-weight:600;display:flex}.kc-library .kc-steps li p{color:var(--kc-ink);font-size:16px;line-height:1.8}.kc-steps li button{background:var(--kc-bg);border:1px solid var(--kc-line);min-height:44px;color:var(--kc-accent);border-radius:6px;grid-column:2;justify-self:start;align-items:center;gap:6px;padding:6px 10px;font-size:11px;display:inline-flex}.kc-before,.kc-notes{border:1px solid var(--kc-line);background:var(--kc-soft);border-radius:8px;margin:16px 0;padding:0 16px;font-size:14px}.kc-before summary,.kc-notes summary{cursor:pointer;min-height:48px;color:var(--kc-ink);padding:12px 0;font-weight:550}.kc-before summary{align-items:center;gap:9px;list-style:none;display:flex}.kc-before summary::-webkit-details-marker{display:none}.kc-before summary>svg:last-child{margin-left:auto}.kc-before[open] summary>svg:last-child{transform:rotate(180deg)}.kc-library .kc-before p{color:var(--kc-ink);padding-bottom:12px;font-size:14px}.kc-library .kc-before p.kc-small{color:var(--kc-muted);font-size:12px}.kc-notes ul{margin:0 0 16px;padding-left:18px}.kc-notes li+li{margin-top:9px}.kc-finish{border-top:1px solid var(--kc-line);border-bottom:1px solid var(--kc-line);flex-wrap:wrap;align-items:center;gap:16px;margin-top:26px;padding:22px 0;display:flex}.kc-finish>div{flex:1;min-width:210px}.kc-library .kc-finish h2{letter-spacing:normal;font-size:16px;line-height:1.6}.kc-library .kc-finish p{color:var(--kc-muted);margin-top:4px;font-size:13px}.kc-next-prev{grid-template-columns:1fr 1fr;gap:12px;margin-top:20px;display:grid}.kc-next-prev a{border:1px solid var(--kc-line);border-radius:8px;align-items:center;gap:10px;min-height:70px;padding:12px;font-size:14px;line-height:1.6;display:flex}.kc-next-prev a>svg{flex-shrink:0}.kc-next-prev a:hover{background:var(--kc-soft)}.kc-next-prev a:last-child{text-align:right;justify-content:flex-end}.kc-next-prev small{color:var(--kc-muted);margin-bottom:3px;font-size:11px;display:block}.kc-empty{padding:24px 16px}.kc-library .kc-empty h3{font-size:18px}.kc-library .kc-empty p{color:var(--kc-muted);margin:8px 0 16px;font-size:14px}.kc-error{background:var(--kc-warm);color:var(--kc-ink);border:1px solid var(--kc-line);border-radius:8px;margin-top:12px;padding:14px 16px;font-size:14px}.kc-error button{background:var(--kc-bg);border:1px solid var(--kc-line);color:var(--kc-ink);border-radius:6px;min-height:44px;margin-top:8px;padding:8px 12px}:root[data-theme=dark] .kc-library{--kc-bg:#19242f;--kc-soft:#202e3b;--kc-ink:#e6edf4;--kc-muted:#afbecd;--kc-line:#344555;--kc-accent:#f5a273;--kc-warm:#382a25;--kc-complete:#7eddb7}.parts-page.parts-inner .kc-library{--kc-bg:var(--panel);--kc-soft:var(--soft);--kc-ink:var(--ink);--kc-muted:var(--muted);--kc-line:var(--line);--kc-accent:var(--accent);--kc-warm:var(--soft);--kc-complete:var(--accent);--kc-sticky-top:100px}@media (width>=640px){.kc-library{padding:28px 28px 56px}.kc-player-tools label{max-width:340px}}@container kc (width>=920px){.kc-course-grid{grid-template:"watch playlist""reading playlist"1fr/minmax(0,1fr) clamp(285px,30%,360px);gap:24px 28px}.kc-playlist{top:var(--kc-sticky-top);height:calc(100dvh - var(--kc-playlist-top,var(--kc-sticky-top)) - 16px);max-height:calc(100dvh - var(--kc-sticky-top) - 16px);display:flex;position:sticky}.kc-mobile-lessons,.kc-close-playlist{display:none}.kc-chapter-name,.kc-playlist-lesson-name{font-size:14px}.kc-library .kc-steps li p{font-size:15px}.kc-steps li{grid-template-columns:28px minmax(0,1fr) auto}.kc-steps li button{grid-column:auto}.kc-player-tools label{width:auto}.kc-player-tools select{font-size:12px}}@media (prefers-reduced-motion:reduce){.kc-library *{scroll-behavior:auto!important;transition:none!important}}.parts-page.parts-inner>main.kc-main{width:100%;max-width:1280px;margin-inline:auto;padding:0}.parts-page.parts-inner>main.kc-main>.kc-library{max-width:none}.kc-breadcrumbs{color:var(--kc-muted);margin-bottom:12px;font-size:12px}.kc-breadcrumbs ol{flex-wrap:wrap;gap:0 8px;margin:0;padding:0;list-style:none;display:flex}.kc-breadcrumbs li{align-items:center;gap:8px;min-width:0;display:flex}.kc-breadcrumbs li+li:before{content:"/";opacity:.65}.kc-breadcrumbs :is(a,span){overflow-wrap:anywhere}.kc-breadcrumbs a{text-underline-offset:3px;align-items:center;min-height:32px;text-decoration:underline;display:inline-flex}@media (width<=640px){.kc-breadcrumbs a{min-height:44px}}.kc-auto-next{cursor:pointer;min-width:48px;min-height:44px;color:var(--kc-muted);flex-direction:column;flex-shrink:0;justify-content:center;align-items:center;gap:4px;font-size:10px;font-weight:600;display:flex;position:relative}.kc-auto-next input{opacity:0;cursor:pointer;width:100%;height:100%;margin:0;position:absolute;inset:0}.kc-switch-track{border:1px solid var(--kc-muted);background:var(--kc-soft);pointer-events:none;border-radius:999px;width:36px;height:22px;display:block}.kc-switch-track:after{content:"";background:var(--kc-muted);border-radius:50%;width:16px;height:16px;margin:2px;display:block}.kc-auto-next input:checked+.kc-switch-track{background:var(--kc-accent);border-color:var(--kc-accent)}.kc-auto-next input:checked+.kc-switch-track:after{background:var(--kc-bg);transform:translate(14px)}.kc-auto-next input:focus-visible+.kc-switch-track{outline:3px solid var(--kc-accent);outline-offset:3px}.kc-learning-path{border-bottom:1px solid var(--kc-line);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px 20px;margin-bottom:20px;padding:0 0 16px;display:flex}.kc-path-controls{flex-wrap:wrap;align-items:center;gap:16px;display:flex}.kc-path-controls label{color:var(--kc-muted);align-items:center;gap:8px;font-size:12px;display:flex}.kc-path-controls select{border:1px solid var(--kc-line);background:var(--kc-bg);max-width:100%;min-height:44px;color:var(--kc-ink);border-radius:7px;padding:8px 28px 8px 10px;font-size:14px}.kc-plan-name{color:var(--kc-ink);font-size:14px;font-weight:600}.kc-path-tabs{border:1px solid var(--kc-line);background:var(--kc-soft);border-radius:9px;padding:3px;display:flex}.kc-path-tabs button{min-height:44px;color:var(--kc-muted);background:0 0;border:1px solid #0000;border-radius:6px;padding:8px 14px;font-size:14px}.kc-path-tabs button[aria-pressed=true]{border-color:var(--kc-line);background:var(--kc-bg);color:var(--kc-ink);font-weight:600}.kc-library .kc-path-outside,.kc-learning-path>[role=alert],.kc-learning-path>[role=status]{color:var(--kc-muted);flex-basis:100%;font-size:12px}.kc-entry-alternative{margin:0 0 16px}.kc-entry-alternative a{color:var(--kc-accent);text-underline-offset:3px;align-items:center;gap:6px;font-size:13px;text-decoration:underline;display:inline-flex}@media (width<=640px){.kc-learning-path{gap:12px}.kc-path-controls{gap:12px;width:100%}.kc-path-controls label{flex-direction:column;flex:1;align-items:stretch;gap:4px;min-width:0}.kc-path-controls select,.kc-path-tabs{width:100%}.kc-path-tabs button{flex:1}}