@font-face{font-family:Jura;src:url(/fonts/rider-grid/Jura-Variable.ttf) format("truetype");font-style:normal;font-weight:500 700;font-display:swap}@font-face{font-family:IBM Plex Mono;src:url(/fonts/rider-grid/IBMPlexMono-Regular.ttf) format("truetype");font-style:normal;font-weight:400;font-display:swap}@font-face{font-family:IBM Plex Mono;src:url(/fonts/rider-grid/IBMPlexMono-Medium.ttf) format("truetype");font-style:normal;font-weight:500;font-display:swap}@font-face{font-family:IBM Plex Mono;src:url(/fonts/rider-grid/IBMPlexMono-SemiBold.ttf) format("truetype");font-style:normal;font-weight:600;font-display:swap}@font-face{font-family:IBM Plex Mono;src:url(/fonts/rider-grid/IBMPlexMono-Bold.ttf) format("truetype");font-style:normal;font-weight:700;font-display:swap}@font-face{font-family:IBM Plex Mono;src:url(/fonts/rider-grid/IBMPlexMono-Italic.ttf) format("truetype");font-style:italic;font-weight:400;font-display:swap}.od-rider{--bg:oklch(0.994 0 89.88);--surface:oklch(0.9911 0 89.88);--fg:oklch(0.1832 0.0216 267.43);--muted:oklch(0.5309 0.0149 266.6);--border:oklch(0.9185 0.0058 264.53);--accent:oklch(0.6414 0.2343 29.52);--nav:oklch(0.2248 0.0366 248.29);--nav-soft:oklch(0.3082 0.0324 252.42);--success:oklch(0.50 0.12 150);--warning:oklch(0.62 0.13 72);--danger:oklch(0.56 0.16 28);--info:oklch(0.50 0.11 245);--font-ui:"SF Pro Text","Avenir Next","Helvetica Neue",ui-sans-serif,sans-serif;--font-display:"SF Pro Display","Avenir Next","Helvetica Neue",ui-sans-serif,sans-serif;--rail-width:236px;--context-width:292px;--page-pad:clamp(24px,2.8vw,42px);--content-gap:20px;--radius:6px;--surface-shadow:none;--display-font:var(--font-display);--motion:200ms cubic-bezier(0.23,1,0.32,1)}.od-rider *{box-sizing:border-box}.od-rider{scroll-behavior:smooth;margin:0;min-width:320px;min-height:100dvh;background:var(--bg);color:var(--fg);font-family:var(--font-ui);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}.od-rider button,.od-rider input,.od-rider select{font:inherit}.od-rider a,.od-rider button{-webkit-tap-highlight-color:transparent}.od-rider a,.od-rider button{color:inherit}.od-rider a{text-decoration:none}.od-rider img{display:block;max-width:100%}.od-rider svg.icon{width:20px;height:20px;flex:0 0 auto}.od-rider :focus-visible{outline:3px solid color-mix(in oklch,var(--info) 72%,white);outline-offset:3px}.od-rider .dir-editorial{--rail-width:246px;--context-width:300px;--page-pad:clamp(28px,3.2vw,50px);--content-gap:24px;--radius:7px;--display-font:var(--font-display);--motion:230ms cubic-bezier(0.23,1,0.32,1)}.od-rider .dir-spatial{--rail-width:264px;--context-width:312px;--page-pad:clamp(20px,2.2vw,34px);--content-gap:16px;--radius:8px;--surface-shadow:0 10px 28px color-mix(in oklch,var(--nav) 5%,transparent);--motion:180ms cubic-bezier(0.23,1,0.32,1)}.od-rider h1,.od-rider h2,.od-rider h3,.od-rider p{margin-top:0}.od-rider h1,.od-rider h2,.od-rider h3{color:var(--fg);font-family:var(--display-font);font-weight:600}.od-rider h1{margin-bottom:12px;font-size:clamp(30px,3.2vw,44px);line-height:1.08;letter-spacing:-.022em}.od-rider h2{margin-bottom:9px;font-size:clamp(20px,2vw,27px);line-height:1.16;letter-spacing:-.015em}.od-rider h3{margin-bottom:6px;font-size:17px;line-height:1.2;letter-spacing:-.01em}.od-rider .eyebrow,.od-rider .nav-eyebrow,.od-rider .reviewer-kicker,.od-rider .reviewer-label{display:block;color:var(--muted);font-size:10px;font-style:normal;font-weight:600;letter-spacing:.08em;line-height:1.3;text-transform:uppercase}.od-rider .product-shell{min-height:100dvh}.od-rider .page-lessons,.od-rider .page-profile{display:grid;grid-template-columns:var(--rail-width) minmax(0,1fr)}.od-rider .page-lesson{display:grid;grid-template-columns:var(--rail-width) minmax(0,1fr) var(--context-width);align-items:start}.od-rider .course-nav{position:sticky;top:0;z-index:3;display:flex;flex-direction:column;height:100dvh;overflow:hidden;padding:22px 18px 18px;background:var(--nav);color:oklch(.95 .01 250)}.od-rider .brand-mark{display:flex;align-items:center;gap:11px;min-height:44px;padding:3px 4px}.od-rider .brand-glyph{display:grid;width:34px;height:34px;place-items:center;border:1px solid oklch(.96 .01 250/.24);border-color:color-mix(in oklch,var(--accent) 74%,transparent);border-radius:5px;color:var(--accent);font-size:11px;font-weight:600;letter-spacing:.06em}.od-rider .brand-mark small,.od-rider .brand-mark strong{display:block}.od-rider .brand-mark strong{font-size:14px;letter-spacing:-.01em}.od-rider .brand-mark small{margin-top:-2px;color:oklch(.82 .02 250);font-size:11px;letter-spacing:.02em}.od-rider .primary-nav{display:grid;gap:2px;margin-top:34px}.od-rider .map-back a,.od-rider .nav-bottom a,.od-rider .primary-nav a{display:flex;align-items:center;gap:10px;min-height:42px;padding:8px 10px;border-radius:5px;color:oklch(.78 .02 250);font-size:13px;font-weight:500;transition:background var(--motion),color var(--motion),transform var(--motion)}.od-rider .map-back a:hover,.od-rider .nav-bottom a:hover,.od-rider .primary-nav a:hover{background:oklch(.98 .01 250/.07);color:oklch(.98 .006 250)}.od-rider .map-back a:active,.od-rider .nav-bottom a:active,.od-rider .primary-nav a:active{transform:translateY(1px)}.od-rider .primary-nav a.active{position:relative;background:oklch(.98 .01 250/.1);color:oklch(.98 .006 250)}.od-rider .primary-nav a.active:before{position:absolute;top:9px;bottom:9px;left:0;width:2px;background:var(--accent);content:""}.od-rider .nav-course{margin-top:30px;padding:18px 10px 0;border-top:1px solid oklch(.98 .01 250/.12)}.od-rider .nav-course .nav-eyebrow{color:oklch(.72 .02 250)}.od-rider .nav-course small,.od-rider .nav-course strong,.od-rider .nav-course>span:not(.nav-eyebrow){display:block}.od-rider .nav-course strong{margin-top:13px;font-size:14px;font-weight:600}.od-rider .nav-course>span:not(.nav-eyebrow){margin-top:4px;color:oklch(.72 .02 250);font-size:11px}.od-rider .nav-course small{color:oklch(.72 .02 250);font-size:11px;line-height:1.5}.od-rider .nav-progress{height:3px;margin:20px 0 10px;overflow:hidden;background:oklch(.98 .01 250/.12)}.od-rider .nav-progress i{display:block;width:calc(var(--sent) / var(--total) * 100%);height:100%;background:oklch(.91 .04 245)}.od-rider .nav-bottom{display:grid;gap:10px;margin-top:auto}.od-rider .sync-state{display:flex;align-items:center;gap:8px;padding:4px 12px;color:oklch(.68 .02 250);font-size:11px;letter-spacing:.02em}.od-rider .sync-state i{width:7px;height:7px;border-radius:50%;background:oklch(.67 .12 150)}.od-rider .lessons-main,.od-rider .profile-main{min-width:0;padding:24px var(--page-pad) 72px}.od-rider .content-topbar{display:flex;align-items:flex-start;justify-content:space-between;gap:22px;max-width:1260px;margin:0 auto 20px}.od-rider .content-topbar h1{max-width:740px;margin-top:6px;margin-bottom:0}.od-rider .topbar-context{display:flex;align-items:center;gap:10px}.od-rider .course-mini,.od-rider .help-link,.od-rider .student-chip{min-height:42px;border:1px solid var(--border);background:var(--surface)}.od-rider .help-link{display:grid;width:42px;place-items:center;border-radius:50%;color:var(--muted)}.od-rider .student-chip{display:flex;align-items:center;gap:10px;padding:6px 12px 6px 6px;border-radius:999px}.od-rider .student-chip img{width:31px;height:31px;object-fit:cover;object-position:69% 24%;border-radius:50%}.od-rider .student-chip small,.od-rider .student-chip strong{display:block;line-height:1.35}.od-rider .student-chip strong{font-size:12px}.od-rider .student-chip small{color:var(--muted);font-size:10px;letter-spacing:.01em}.od-rider .course-mini{display:grid;align-content:center;padding:5px 14px;border-radius:var(--radius)}.od-rider .course-mini span,.od-rider .course-mini strong{line-height:1.2}.od-rider .course-mini strong{font-size:14px}.od-rider .course-mini span{color:var(--muted);font-size:10px;letter-spacing:.01em}.od-rider .lessons-intro{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.52fr);gap:24px;max-width:1260px;margin:0 auto 18px;padding:16px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.od-rider .lessons-intro p{max-width:65ch;margin:6px 0 0;color:var(--muted);font-size:13px}.od-rider .lessons-intro p strong{color:var(--fg);font-weight:600}.od-rider .route-state{padding-left:26px;border-left:1px solid var(--border)}.od-rider .route-state small,.od-rider .route-state span,.od-rider .route-state strong{display:block}.od-rider .route-state span{color:var(--muted);font-size:12px;letter-spacing:.02em}.od-rider .route-state strong{margin-top:4px;font-size:15px}.od-rider .route-state small{margin-top:6px;color:var(--muted);font-size:12px}.od-rider .recommended-card{display:grid;grid-template-columns:minmax(320px,.8fr) minmax(360px,1.2fr);max-width:1260px;min-height:286px;margin:0 auto 34px;overflow:hidden;border:1px solid var(--border);border-radius:var(--radius);background:var(--nav);box-shadow:var(--surface-shadow)}.od-rider .recommended-copy{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;padding:clamp(26px,3vw,42px);color:oklch(.94 .01 250)}.od-rider .recommended-copy .eyebrow{color:oklch(.74 .02 250)}.od-rider .recommended-title{display:flex;align-items:center;gap:16px;margin-top:12px}.od-rider .recommended-title>span{color:var(--accent);font-family:var(--font-display);font-size:clamp(44px,4vw,62px);font-weight:420;line-height:1;letter-spacing:-.04em}.od-rider .recommended-copy h2{max-width:14ch;margin:0;color:oklch(.98 .004 250);font-size:clamp(24px,2.4vw,34px);letter-spacing:-.02em}.od-rider .recommended-copy p{max-width:54ch;margin:18px 0 22px;color:oklch(.78 .02 250);font-size:13px}.od-rider .recommended-image{position:relative;min-height:286px;overflow:hidden;background:oklch(.93 .01 250)}.od-rider .recommended-image img{width:100%;height:100%;object-fit:cover;object-position:58% 50%;transition:transform .6s cubic-bezier(.23,1,.32,1)}.od-rider .recommended-card:hover .recommended-image img{transform:scale(1.015)}.od-rider .image-caption{position:absolute;right:16px;bottom:16px;display:flex;align-items:center;gap:10px;padding:9px 12px;border:1px solid oklch(.98 .01 250/.18);border-radius:7px;background:oklch(.2 .03 255/.92);color:oklch(.96 .01 250);box-shadow:0 8px 18px oklch(.16 .03 255/.18)}.od-rider .image-caption span,.od-rider .image-caption strong{font-size:11px;line-height:1.2}.od-rider .image-caption span{color:oklch(.8 .02 250);letter-spacing:.07em;text-transform:uppercase}.od-rider .image-caption strong{font-weight:600}.od-rider .primary-button,.od-rider .secondary-button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:44px;padding:10px 16px;border-radius:5px;font-size:13px;font-weight:600;letter-spacing:.02em;cursor:pointer;transition:transform .14s cubic-bezier(.23,1,.32,1),background var(--motion),border-color var(--motion)}.od-rider .primary-button{border:1px solid color-mix(in oklch,var(--accent) 84%,black);background:var(--accent);color:oklch(.99 .002 250);box-shadow:0 7px 16px color-mix(in oklch,var(--accent) 14%,transparent)}.od-rider .primary-button:hover{background:color-mix(in oklch,var(--accent) 88%,black)}.od-rider .primary-button:active,.od-rider .secondary-button:active{transform:translateY(1px)}.od-rider .primary-button.full{width:100%}.od-rider .primary-button:disabled{cursor:not-allowed;opacity:.45}.od-rider .secondary-button{border:1px solid var(--border);background:var(--surface);color:var(--fg)}.od-rider .secondary-button:hover{border-color:color-mix(in oklch,var(--fg) 24%,var(--border))}.od-rider .modules-section{max-width:1260px;margin:0 auto}.od-rider .section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:12px}.od-rider .section-heading h2{margin:7px 0 0}.od-rider .section-note{max-width:270px;padding-bottom:6px;color:var(--muted);font-size:13px;text-align:right}.od-rider .module-block{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}.od-rider .module-block+.module-block{margin-top:8px}.od-rider .module-heading{display:flex;width:100%;align-items:center;justify-content:space-between;gap:20px;padding:16px;border:0;background:transparent;text-align:left;cursor:pointer}.od-rider .module-heading em,.od-rider .module-heading small,.od-rider .module-heading strong,.od-rider .module-heading>span{display:block}.od-rider .module-heading small{color:var(--muted);font-size:9px;font-weight:600;letter-spacing:.075em;text-transform:uppercase}.od-rider .module-heading strong{margin-top:6px;font-family:var(--display-font);font-size:16px;letter-spacing:-.012em}.od-rider .module-heading em{margin-top:4px;color:var(--muted);font-size:11px;font-style:normal}.od-rider .module-heading .icon{transition:transform var(--motion)}.od-rider .module-block.is-open .module-heading .icon{transform:rotate(180deg)}.od-rider .module-collapsible{display:grid;grid-template-rows:0fr;opacity:0;transition:grid-template-rows var(--motion),opacity .14s cubic-bezier(.23,1,.32,1)}.od-rider .module-collapsible-inner{min-height:0;overflow:hidden}.od-rider .module-block.is-open .module-collapsible{grid-template-rows:1fr;opacity:1}.od-rider .lesson-list{display:grid;padding:0 0 8px}.od-rider .lesson-row{position:relative;display:grid;grid-template-columns:38px minmax(0,1fr) auto 28px;align-items:center;gap:14px;min-height:54px;padding:8px 14px;border-top:1px solid color-mix(in oklch,var(--border) 68%,transparent);transition:background var(--motion),transform var(--motion)}.od-rider .lesson-row:hover:not(.is-locked){background:color-mix(in oklch,var(--surface) 62%,var(--bg))}.od-rider .lesson-row:active:not(.is-locked){transform:translateX(2px)}.od-rider .lesson-index{color:var(--muted);font-size:12px;font-weight:600;letter-spacing:.04em}.od-rider .lesson-copy small,.od-rider .lesson-copy strong{display:block}.od-rider .lesson-copy strong{font-size:14px;font-weight:550}.od-rider .lesson-copy small{margin-top:3px;color:var(--fg);font-size:11px}.od-rider .lesson-open{display:grid;place-items:center;color:var(--muted)}.od-rider .lesson-open .icon{width:18px}.od-rider .lesson-row.is-recommended{background:color-mix(in oklch,var(--nav) 5%,var(--surface))}.od-rider .lesson-row.is-recommended:before{position:absolute;top:0;bottom:0;left:0;width:2px;background:var(--accent);content:""}.od-rider .lesson-row.is-locked,.od-rider .status{color:var(--muted)}.od-rider .status{display:inline-flex;align-items:center;gap:6px;width:fit-content;min-height:27px;padding:4px 8px;border:1px solid var(--border);border-radius:4px;background:var(--surface);font-size:11px;font-weight:600;letter-spacing:.01em;white-space:nowrap}.od-rider .status .icon{width:13px;height:13px}.od-rider .status-accepted{border-color:color-mix(in oklch,var(--success) 32%,var(--border));color:color-mix(in oklch,var(--success) 84%,var(--fg))}.od-rider .status-review{border-color:color-mix(in oklch,var(--info) 30%,var(--border));color:color-mix(in oklch,var(--info) 82%,var(--fg))}.od-rider .status-revision{border-color:color-mix(in oklch,var(--warning) 32%,var(--border));color:color-mix(in oklch,var(--warning) 82%,var(--fg))}.od-rider .mobile-back,.od-rider .mobile-bottom,.od-rider .mobile-header{display:none}.od-rider .page-lesson .course-nav{overflow-y:auto}.od-rider .map-back{margin:8px 0 18px}.od-rider .map-course-title{padding:0 10px 16px;border-bottom:1px solid oklch(.98 .01 250/.12)}.od-rider .map-course-title span,.od-rider .map-course-title strong{display:block}.od-rider .map-course-title span{color:oklch(.68 .02 250);font-size:9px;font-weight:600;letter-spacing:.08em;text-transform:uppercase}.od-rider .map-course-title strong{margin-top:6px;font-size:13px;line-height:1.35}.od-rider .map-modules{padding:16px 0 38px}.od-rider .map-module+.map-module{margin-top:16px}.od-rider .map-module-title{display:block;padding:0 10px 7px;color:oklch(.66 .02 250);font-size:9px;font-weight:600;letter-spacing:.07em;text-transform:uppercase}.od-rider .map-lesson{position:relative;display:grid;grid-template-columns:26px minmax(0,1fr) 7px;align-items:center;gap:7px;min-height:40px;padding:6px 10px;border-radius:4px;color:oklch(.72 .02 250);font-size:10px;line-height:1.35;transition:background var(--motion),color var(--motion)}.od-rider .map-lesson b{color:oklch(.72 .02 250);font-size:9px;font-weight:600;letter-spacing:.05em}.od-rider .map-lesson.active{background:oklch(.98 .01 250/.1);color:oklch(.98 .006 250)}.od-rider .map-lesson.active:before{position:absolute;top:0;bottom:0;left:0;width:3px;background:var(--accent);content:""}.od-rider .map-lesson.active b{color:var(--accent)}.od-rider .map-lesson:hover:not(.is-locked){color:oklch(.98 .006 250)}.od-rider .map-lesson.is-locked{opacity:.56}.od-rider .map-status{width:5px;height:5px;border-radius:50%;background:oklch(.56 .02 250)}.od-rider .map-status-accepted{background:oklch(.68 .13 150)}.od-rider .map-status-review{background:oklch(.69 .12 245)}.od-rider .map-status-revision{background:oklch(.72 .14 72)}.od-rider .lesson-main{min-width:0;padding:24px var(--page-pad) 72px}.od-rider .extra-practice,.od-rider .lesson-heading,.od-rider .practice-section,.od-rider .theory,.od-rider .video-poster{width:min(100%,900px);margin-right:auto;margin-left:auto}.od-rider .lesson-heading{margin-bottom:16px}.od-rider .lesson-back{display:inline-flex;min-height:38px;align-items:center;gap:7px;margin-bottom:14px;color:var(--muted);font-size:11px}.od-rider .lesson-back .icon{width:15px}.od-rider .lesson-title-lockup{display:grid;grid-template-columns:auto 1px minmax(0,1fr);gap:22px;align-items:center}.od-rider .lesson-title-lockup>i{width:1px;height:58px;background:var(--accent)}.od-rider .lesson-display-number{color:var(--accent);font-family:var(--font-display);font-size:clamp(62px,6vw,86px);font-weight:360;line-height:.9;letter-spacing:-.055em}.od-rider .lesson-title-lockup .eyebrow{display:none}.od-rider .lesson-title-lockup h1{max-width:18ch;margin:0;font-size:clamp(30px,3vw,43px)}.od-rider .lesson-title-lockup p{max-width:62ch;margin:7px 0 0;color:var(--muted);font-size:13px}.od-rider .video-poster{position:relative;aspect-ratio:16/9;overflow:hidden;border:1px solid color-mix(in oklch,var(--nav) 42%,var(--border));border-radius:var(--radius);background:var(--nav);box-shadow:var(--surface-shadow)}.od-rider .video-poster>img{width:100%;height:100%;object-fit:cover;object-position:55% 50%;filter:saturate(.96) contrast(1.03)}.od-rider .video-poster:after{position:absolute;inset:auto 0 0;height:70px;background:oklch(.13 .025 255/.82);content:""}.od-rider .play-button{position:absolute;top:50%;left:50%;z-index:1;display:grid;width:54px;height:54px;place-items:center;transform:translate(-50%,-50%);border:1px solid color-mix(in oklch,var(--accent) 86%,black);border-radius:50%;background:var(--accent);color:oklch(.99 .002 250);box-shadow:0 10px 24px oklch(.12 .03 255/.22);cursor:pointer;transition:transform .14s cubic-bezier(.23,1,.32,1)}.od-rider .play-button:hover{transform:translate(-50%,-50%) scale(1.035)}.od-rider .play-button:active{transform:translate(-50%,-49%) scale(.98)}.od-rider .is-playing .play-button .icon-play{opacity:.28}.od-rider .video-meta{position:absolute;right:18px;bottom:20px;left:18px;z-index:1;display:flex;align-items:center;justify-content:space-between;color:oklch(.97 .006 250);font-size:10px}.od-rider .video-meta span{letter-spacing:.02em}.od-rider .video-meta strong{font-weight:600}.od-rider .video-progress{position:absolute;right:18px;bottom:10px;left:18px;z-index:1;height:2px;overflow:hidden;background:oklch(.96 .01 250/.26)}.od-rider .video-progress i{display:block;width:18%;height:100%;background:var(--accent);transition:transform 6s linear;transform-origin:left}.od-rider .video-poster.is-playing .video-progress i{transform:scaleX(3.8)}.od-rider .theory{padding:16px 0 20px}.od-rider .theory-callout,.od-rider .theory-lede,.od-rider .theory>ol,.od-rider .theory>p{max-width:72ch}.od-rider .theory-lede{margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--border)}.od-rider .theory-lede .eyebrow{display:none}.od-rider .theory-lede p{margin:0;color:var(--muted);font-size:13px;line-height:1.55}.od-rider .theory h2{margin:15px 0 5px;font-family:var(--font-ui);font-size:15px;font-weight:650;letter-spacing:-.005em}.od-rider .theory li,.od-rider .theory-callout p,.od-rider .theory>p{color:color-mix(in oklch,var(--fg) 78%,var(--muted));font-size:12px;line-height:1.55}.od-rider .theory>p{margin-bottom:7px}.od-rider .theory ol{margin:7px 0 0;padding-left:20px}.od-rider .theory li{padding-left:4px}.od-rider .theory li+li{margin-top:5px}.od-rider .theory li strong{color:var(--fg)}.od-rider .theory-callout{margin:12px 0;padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}.od-rider .theory-callout strong{font-size:10px;letter-spacing:.07em;text-transform:uppercase}.od-rider .theory-callout p{margin:4px 0 0}.od-rider .extra-practice,.od-rider .practice-section{display:grid;grid-template-columns:36px minmax(0,1fr);gap:12px;align-items:start;padding:11px 14px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}.od-rider .extra-practice:before,.od-rider .practice-number{display:grid;width:30px;height:30px;place-items:center;color:var(--accent);font-size:10px;content:""}.od-rider .practice-number{font-family:var(--font-display);letter-spacing:-.02em}.od-rider .extra-practice .eyebrow,.od-rider .practice-section .eyebrow{color:var(--fg)}.od-rider .extra-practice h3,.od-rider .practice-section h2{margin:4px 0 3px;font-family:var(--font-ui);font-size:13px;font-weight:650}.od-rider .extra-practice p,.od-rider .practice-section p{max-width:68ch;margin:0;color:var(--muted);font-size:11px}.od-rider .practice-criteria{display:flex;flex-wrap:wrap;gap:5px;margin-top:7px}.od-rider .practice-criteria span{padding:3px 6px;border-radius:3px;background:color-mix(in oklch,var(--bg) 70%,var(--surface));color:var(--muted);font-size:9px}.od-rider .extra-practice{margin-top:6px}.od-rider .extra-practice:before{color:var(--muted);content:"＋";font-size:17px}.od-rider .lesson-context{position:sticky;top:0;display:flex;min-height:100dvh;flex-direction:column;gap:14px;padding:66px 18px 28px;border-left:1px solid var(--border);background:var(--surface)}.od-rider .context-section,.od-rider .homework-card{padding:18px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}.od-rider .context-section>.eyebrow,.od-rider .homework-card>.eyebrow{color:var(--fg);font-size:11px;letter-spacing:-.005em;text-transform:none}.od-rider .context-stat{display:grid;margin-top:14px}.od-rider .context-stat strong{color:var(--accent);font-family:var(--font-display);font-size:48px;font-weight:380;line-height:1;letter-spacing:-.04em}.od-rider .context-stat strong small{color:var(--muted);font-size:15px;letter-spacing:-.01em}.od-rider .context-stat span{margin-top:7px;color:var(--muted);font-size:10px;line-height:1.4}.od-rider .course-segments{display:grid;grid-template-columns:repeat(18,1fr);gap:2px;margin-top:12px}.od-rider .course-segments i{height:3px;border-radius:2px;background:var(--border)}.od-rider .course-segments i.done{background:var(--accent)}.od-rider .context-section.attention a{display:grid;grid-template-columns:auto 1fr;gap:5px;margin-top:10px;padding:4px 0}.od-rider .context-section.attention a+a{margin-top:3px}.od-rider .context-section.attention a strong{color:var(--accent);font-size:10px}.od-rider .context-section.attention a span{color:var(--muted);font-size:10px}.od-rider .homework-card{margin-top:auto}.od-rider .homework-brief,.od-rider .homework-criterion,.od-rider .homework-status{margin-top:14px}.od-rider .homework-brief strong,.od-rider .homework-criterion strong,.od-rider .homework-status>strong{display:block;margin-bottom:6px;font-size:10px}.od-rider .homework-brief p{margin:0;color:var(--muted);font-size:10px;line-height:1.55}.od-rider .homework-criterion span{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:10px}.od-rider .homework-criterion .icon{width:14px;height:14px}.od-rider .homework-status .status{border:0;background:color-mix(in oklch,var(--border) 55%,var(--surface))}.od-rider .homework-card .primary-button{margin-top:16px}.od-rider .homework-card>small{display:block;margin-top:9px;color:var(--muted);font-size:9px;line-height:1.4}.od-rider .profile-main{max-width:1450px;width:100%;margin:0 auto}.od-rider .profile-form,.od-rider .profile-lede,.od-rider .profile-links,.od-rider .telegram-setting{max-width:980px;margin-right:auto;margin-left:auto}.od-rider .profile-lede{margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid var(--border)}.od-rider .profile-lede p{max-width:65ch;margin:0;color:var(--muted)}.od-rider .profile-form{display:grid;gap:10px}.od-rider .setting-section{display:grid;grid-template-columns:minmax(190px,.42fr) minmax(0,1fr);gap:24px;padding:20px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}.od-rider .identity-setting{grid-template-columns:88px minmax(0,1fr) auto;align-items:start}.od-rider .profile-photo{width:78px;height:90px;overflow:hidden;border-radius:var(--radius);background:var(--border)}.od-rider .profile-photo img{width:100%;height:100%;object-fit:cover;object-position:58% 34%}.od-rider .identity-fields,.od-rider .reminder-controls,.od-rider .routine-controls{display:grid;gap:14px}.od-rider .identity-fields{grid-template-columns:1fr 1fr}.od-rider .profile-form label>span,.od-rider .profile-form legend{display:block;margin-bottom:5px;color:var(--fg);font-size:10px;font-weight:600;letter-spacing:.02em}.od-rider .profile-form label>small{display:block;margin-top:5px;color:var(--muted);font-size:10px}.od-rider .profile-form input:not([type]),.od-rider .profile-form input[type=email],.od-rider .profile-form input[type=text],.od-rider .profile-form input[type=time],.od-rider .profile-form select,.od-rider .reviewer-field select{width:100%;min-height:40px;padding:8px 10px;border:1px solid var(--border);border-radius:5px;background:var(--surface);color:var(--fg)}.od-rider .profile-form input:read-only{color:var(--muted)}.od-rider .profile-form fieldset:disabled,.od-rider .profile-form input:disabled,.od-rider .profile-form select:disabled{opacity:.75}.od-rider .profile-form fieldset{margin:0;padding:0;border:0}.od-rider .setting-intro h2,.od-rider .telegram-setting h2{margin:6px 0 5px;font-size:18px}.od-rider .setting-intro p,.od-rider .telegram-setting p{max-width:43ch;margin:0;color:var(--muted);font-size:11px}.od-rider .segmented{display:grid;grid-template-columns:1fr 1fr;padding:4px;border:1px solid var(--border);border-radius:6px;background:color-mix(in oklch,var(--bg) 72%,var(--surface))}.od-rider .segmented label{cursor:pointer}.od-rider .segmented input{position:absolute;opacity:0;pointer-events:none}.od-rider .segmented label>span{display:grid;min-height:46px;align-content:center;margin:0;padding:8px 12px;border-radius:4px;color:var(--muted);transition:background var(--motion),color var(--motion)}.od-rider .segmented label>span small{margin-top:2px;font-size:10px;font-weight:400}.od-rider .segmented input:checked+span{background:var(--surface);color:var(--fg);box-shadow:0 2px 8px color-mix(in oklch,var(--nav) 7%,transparent)}.od-rider .day-picker{display:grid;grid-template-columns:repeat(7,minmax(42px,1fr));gap:6px}.od-rider .day-picker label{cursor:pointer}.od-rider .day-picker input{position:absolute;opacity:0;pointer-events:none}.od-rider .day-picker label>span{display:grid;min-height:40px;place-items:center;margin:0;border:1px solid var(--border);border-radius:5px;color:var(--muted);background:var(--surface)}.od-rider .day-picker input:checked+span{border-color:var(--fg);background:var(--fg);color:var(--surface)}.od-rider .field-message{margin:7px 0 0;color:var(--muted);font-size:11px}.od-rider .field-message.is-error{color:var(--danger)}.od-rider .reminder-controls{grid-template-columns:.6fr 1.4fr}.od-rider .switch-row{position:relative;grid-column:1/-1;display:flex;min-height:58px;align-items:center;justify-content:space-between;gap:20px;padding:11px 0;cursor:pointer}.od-rider .switch-row>span{margin:0!important}.od-rider .switch-row small,.od-rider .switch-row strong{display:block}.od-rider .switch-row small{margin-top:3px!important}.od-rider .switch-row input{position:absolute;opacity:0}.od-rider .switch-row i{position:relative;width:46px;height:26px;flex:0 0 auto;border:1px solid var(--border);border-radius:999px;background:var(--border);transition:background var(--motion)}.od-rider .switch-row i:after{position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:var(--surface);box-shadow:0 2px 5px color-mix(in oklch,var(--nav) 12%,transparent);content:"";transition:transform var(--motion)}.od-rider .switch-row input:checked+i{background:var(--fg)}.od-rider .switch-row input:checked+i:after{transform:translateX(20px)}.od-rider .telegram-setting{grid-template-columns:52px minmax(0,1fr) auto;align-items:center;margin-top:10px;padding:18px 20px}.od-rider .setting-icon{display:grid;width:44px;height:44px;place-items:center;border:1px solid var(--border);border-radius:5px;background:var(--surface);color:var(--muted)}.od-rider .telegram-setting.state-connected .setting-icon{border-color:color-mix(in oklch,var(--success) 28%,var(--border));color:var(--success)}.od-rider .telegram-setting.state-error .setting-icon{border-color:color-mix(in oklch,var(--danger) 28%,var(--border));color:var(--danger)}.od-rider .profile-links{display:grid;margin-top:10px;padding:0 20px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}.od-rider .profile-links a,.od-rider .profile-links button{display:grid;grid-template-columns:minmax(180px,.42fr) minmax(0,1fr) 24px;align-items:center;gap:20px;min-height:54px;padding:10px 0;border:0;border-bottom:1px solid var(--border);background:transparent;text-align:left;cursor:pointer}.od-rider .profile-links strong{font-size:13px}.od-rider .profile-links span{color:var(--muted);font-size:12px}.od-rider .profile-links .icon{color:var(--muted)}.od-rider .reviewer-panel{position:fixed;right:18px;bottom:18px;z-index:20;width:min(420px,calc(100vw - 36px));overflow:hidden;border:1px solid oklch(.42 .03 255);border-radius:12px;background:oklch(.18 .03 255);color:oklch(.94 .01 250);box-shadow:0 18px 48px oklch(.12 .03 255/.28)}.od-rider .reviewer-head{display:flex;min-height:60px;align-items:center;justify-content:space-between;gap:20px;padding:10px 12px 10px 16px}.od-rider .reviewer-kicker{color:oklch(.65 .03 250);font-size:9px}.od-rider .reviewer-head strong{display:block;margin-top:2px;font-size:13px}.od-rider .reviewer-head-actions{display:flex;gap:3px}.od-rider .icon-button{display:grid;width:38px;height:38px;place-items:center;border:0;border-radius:7px;background:transparent;cursor:pointer}.od-rider .reviewer-panel .icon-button{color:oklch(.74 .02 250)}.od-rider .reviewer-panel .icon-button:hover{background:oklch(.98 .01 250/.07);color:oklch(.98 .006 250)}.od-rider .reviewer-panel .icon-chevron{transition:transform var(--motion)}.od-rider .reviewer-panel.is-collapsed .icon-chevron{transform:rotate(180deg)}.od-rider .reviewer-body{display:grid;grid-template-columns:1fr .72fr;gap:12px;max-height:360px;padding:12px;border-top:1px solid oklch(.98 .01 250/.1);opacity:1;transition:max-height var(--motion),opacity .14s cubic-bezier(.23,1,.32,1),padding var(--motion)}.od-rider .reviewer-panel.is-collapsed .reviewer-body{max-height:0;padding-top:0;padding-bottom:0;overflow:hidden;opacity:0}.od-rider .reviewer-section{grid-column:1/-1}.od-rider .reviewer-field>span,.od-rider .reviewer-label{margin-bottom:6px;color:oklch(.66 .02 250);font-size:9px;letter-spacing:.075em;text-transform:uppercase}.od-rider .reviewer-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:4px}.od-rider .reviewer-tabs a{display:grid;min-height:34px;place-items:center;padding:4px 7px;border:1px solid oklch(.98 .01 250/.1);border-radius:6px;color:oklch(.7 .02 250);font-size:10px;transition:background var(--motion),color var(--motion)}.od-rider .reviewer-tabs a.active{background:oklch(.98 .01 250/.12);color:oklch(.98 .006 250)}.od-rider .reviewer-field{display:grid}.od-rider .reviewer-field select{min-height:36px;padding:7px 9px;border-color:oklch(.98 .01 250/.12);background:oklch(.23 .03 255);color:oklch(.92 .01 250);font-size:10px}.od-rider .reviewer-overview{grid-column:1/-1;display:flex;min-height:34px;align-items:center;justify-content:center;gap:8px;color:oklch(.76 .02 250);font-size:10px}.od-rider .reviewer-overview .icon{width:15px}.od-rider .reviewer-restore{position:fixed;right:16px;bottom:16px;z-index:20;display:flex;min-height:42px;align-items:center;gap:8px;padding:8px 12px;border:1px solid oklch(.42 .03 255);border-radius:9px;background:oklch(.18 .03 255);color:oklch(.92 .01 250);box-shadow:0 12px 30px oklch(.12 .03 255/.22);cursor:pointer;font-size:11px}.od-rider .modal-backdrop{position:fixed;inset:0;z-index:30;display:grid;place-items:center;padding:20px;background:oklch(.14 .03 255/.56)}.od-rider .modal{position:relative;width:min(460px,100%);padding:32px;border:1px solid var(--border);border-radius:12px;background:var(--surface);box-shadow:0 28px 80px oklch(.12 .03 255/.28);animation:modal-in .2s cubic-bezier(.23,1,.32,1) both}@keyframes modal-in{0%{opacity:0;transform:translateY(8px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}.od-rider .modal-close{position:absolute;top:14px;right:14px;color:var(--muted)}.od-rider .modal h2{margin-top:9px}.od-rider .modal p{color:var(--muted)}.od-rider .modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:28px}.od-rider .dir-editorial .recommended-card{grid-template-columns:minmax(320px,.78fr) minmax(460px,1.22fr);min-height:320px}.od-rider .dir-editorial .recommended-image{min-height:320px}.od-rider .dir-editorial .lesson-row{min-height:58px}.od-rider .dir-editorial .extra-practice,.od-rider .dir-editorial .lesson-heading,.od-rider .dir-editorial .practice-section,.od-rider .dir-editorial .theory,.od-rider .dir-editorial .video-poster{width:min(100%,960px)}.od-rider .dir-editorial .theory{padding-top:20px}.od-rider .dir-editorial .theory h2,.od-rider .dir-editorial .theory-callout,.od-rider .dir-editorial .theory-lede,.od-rider .dir-editorial .theory>ol,.od-rider .dir-editorial .theory>p{max-width:76ch;margin-right:auto;margin-left:auto}.od-rider .dir-editorial .theory-lede p{font-size:14px;line-height:1.55}.od-rider .dir-spatial .lessons-main,.od-rider .dir-spatial .profile-main{background:color-mix(in oklch,var(--bg) 84%,var(--border))}.od-rider .dir-spatial .content-topbar{margin-bottom:20px}.od-rider .dir-spatial .content-topbar h1{font-size:clamp(28px,3vw,40px)}.od-rider .dir-spatial .lessons-intro{margin-bottom:18px;padding:16px 0}.od-rider .dir-spatial .recommended-card{grid-template-columns:minmax(360px,1fr) minmax(280px,.72fr);min-height:248px;margin-bottom:22px}.od-rider .dir-spatial .recommended-copy{padding:24px 28px}.od-rider .dir-spatial .recommended-copy p{margin-bottom:16px;font-size:12px}.od-rider .dir-spatial .recommended-image{min-height:258px}.od-rider .dir-spatial .modules-section{padding:18px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);box-shadow:var(--surface-shadow)}.od-rider .dir-spatial .module-heading{padding-top:18px;padding-bottom:18px}.od-rider .dir-spatial .lesson-row{min-height:58px;padding-top:7px;padding-bottom:7px}.od-rider .dir-spatial .lesson-main{padding-top:20px;padding-right:clamp(18px,2vw,30px);padding-left:clamp(18px,2vw,30px);background:color-mix(in oklch,var(--bg) 84%,var(--border))}.od-rider .dir-spatial .extra-practice,.od-rider .dir-spatial .lesson-heading,.od-rider .dir-spatial .practice-section,.od-rider .dir-spatial .theory,.od-rider .dir-spatial .video-poster{width:min(100%,860px)}.od-rider .dir-spatial .theory{padding-top:14px}.od-rider .dir-spatial .theory li,.od-rider .dir-spatial .theory-callout p,.od-rider .dir-spatial .theory>p{font-size:11px}.od-rider .dir-spatial .theory h2{margin-top:13px;font-size:14px}.od-rider .dir-spatial .lesson-context{background:var(--surface)}.od-rider .dir-spatial .profile-form,.od-rider .dir-spatial .profile-links,.od-rider .dir-spatial .telegram-setting{padding-right:20px;padding-left:20px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);box-shadow:var(--surface-shadow)}.od-rider .dir-spatial .telegram-setting{margin-top:16px}.od-rider .dir-spatial .profile-links{margin-top:16px;border-bottom:1px solid var(--border)}.od-rider .overview-body{min-height:100dvh;padding:0;background:oklch(.966 .004 260)}.od-rider .reference-bar{position:sticky;top:0;z-index:20;display:grid;grid-template-columns:minmax(240px,1fr) auto minmax(180px,1fr);min-height:70px;align-items:center;gap:24px;padding:10px clamp(18px,3vw,44px);border-bottom:1px solid var(--border);background:color-mix(in oklch,var(--surface) 96%,transparent)}.od-rider .reference-title{display:flex;align-items:center;gap:11px}.od-rider .reference-mark{display:grid;width:38px;height:38px;place-items:center;border-radius:6px;background:var(--nav);color:var(--surface);font-size:11px;font-weight:650;letter-spacing:.08em}.od-rider .reference-title small,.od-rider .reference-title strong{display:block}.od-rider .reference-title strong{font-size:14px}.od-rider .reference-title small{margin-top:1px;color:var(--muted);font-size:10px}.od-rider .direction-switch,.od-rider .screen-switch{display:flex;gap:3px;padding:3px;border:1px solid var(--border);border-radius:7px;background:var(--surface)}.od-rider .direction-switch button,.od-rider .screen-switch button{min-height:36px;border:0;border-radius:5px;background:transparent;color:var(--muted);cursor:pointer;font-size:11px;transition:background var(--motion),color var(--motion),transform .14s cubic-bezier(.23,1,.32,1)}.od-rider .direction-switch button{display:flex;align-items:center;gap:7px;padding:7px 12px}.od-rider .direction-switch button b{font-size:9px}.od-rider .direction-switch button.active,.od-rider .screen-switch button.active{background:var(--nav);color:var(--surface)}.od-rider .direction-switch button:active,.od-rider .screen-switch button:active{transform:translateY(1px)}.od-rider .open-prototype{display:flex;min-height:40px;align-items:center;justify-content:flex-end;gap:8px;color:var(--fg);font-size:12px;font-weight:600}.od-rider .open-prototype .icon{width:16px}.od-rider .reference-workbench{width:min(100%,1717px);margin:0 auto;padding:26px clamp(18px,2.5vw,40px) 40px}.od-rider .workbench-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:16px}.od-rider .workbench-heading h1{margin:7px 0 0;font-size:clamp(24px,2.4vw,36px)}.od-rider .screen-switch button{padding:7px 12px}.od-rider .device-stage{display:grid;grid-template-columns:minmax(280px,390px) minmax(0,1fr);gap:clamp(18px,2.2vw,34px);align-items:start}.od-rider .device-column{min-width:0}.od-rider .device-column>header{display:flex;min-height:30px;align-items:center;justify-content:space-between;padding:0 4px}.od-rider .device-column>header strong{font-size:12px}.od-rider .device-column>header span{color:var(--muted);font-size:10px}.od-rider .device-frame{position:relative;overflow:hidden;border:1px solid color-mix(in oklch,var(--border) 82%,var(--fg));background:var(--surface);box-shadow:0 14px 34px oklch(.18 .02 260/.08)}.od-rider .device-frame iframe{position:absolute;top:0;left:0;transform-origin:top left;border:0;background:var(--surface)}.od-rider .mobile-device{width:100%;aspect-ratio:390/844;border-radius:15px}.od-rider .mobile-device:before{position:absolute;top:7px;left:50%;z-index:2;width:62px;height:4px;transform:translateX(-50%);border-radius:999px;background:oklch(.18 .01 260);content:"";pointer-events:none}.od-rider .desktop-device{width:100%;aspect-ratio:1440/900;border-radius:9px}.od-rider .direction-readout{display:grid;grid-template-columns:minmax(190px,.65fr) minmax(280px,1.1fr) minmax(330px,1fr);gap:34px;align-items:start;margin-top:22px;padding:22px 24px;border:1px solid var(--border);border-radius:7px;background:var(--surface)}.od-rider .direction-readout h2{margin:6px 0 0;font-size:22px}.od-rider .direction-readout>p{max-width:58ch;margin:0;color:var(--muted);font-size:13px}.od-rider .direction-readout dl{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:0}.od-rider .direction-readout dt{color:var(--muted);font-size:9px;font-weight:600;letter-spacing:.08em;text-transform:uppercase}.od-rider .direction-readout dd{margin:5px 0 0;font-size:12px}.od-rider .reference-invariants{display:flex;flex-wrap:wrap;gap:8px 20px;align-items:center;padding:20px 4px 0;color:var(--muted);font-size:11px}.od-rider .reference-invariants strong{color:var(--fg);font-size:11px}.od-rider .reference-invariants span{position:relative;padding-left:13px}.od-rider .reference-invariants span:before{position:absolute;top:50%;left:0;width:4px;height:4px;transform:translateY(-50%);border-radius:50%;background:var(--accent);content:""}@media (max-width:1120px){.od-rider .reference-bar{grid-template-columns:1fr auto}.od-rider .direction-switch{grid-column:1/-1;grid-row:2;justify-self:stretch}.od-rider .direction-switch button{flex:1;justify-content:center}.od-rider .device-stage{grid-template-columns:330px minmax(0,1fr)}.od-rider .direction-readout{grid-template-columns:1fr 1.5fr}.od-rider .direction-readout dl{grid-column:1/-1}}@media (max-width:760px){.od-rider .reference-bar{position:relative;display:grid;grid-template-columns:1fr;gap:10px;padding:14px}.od-rider .open-prototype{position:absolute;top:14px;right:14px;font-size:0}.od-rider .open-prototype .icon{width:20px;height:20px}.od-rider .direction-switch{grid-column:1;grid-row:auto}.od-rider .direction-switch button span{display:none}.od-rider .reference-workbench{padding:22px 12px 32px}.od-rider .workbench-heading{display:block}.od-rider .screen-switch{display:grid;grid-template-columns:repeat(4,1fr);margin-top:16px}.od-rider .screen-switch button{padding:6px 5px;font-size:9px}.od-rider .device-stage{grid-template-columns:1fr}.od-rider .device-column-mobile{width:min(100%,390px);margin:0 auto}.od-rider .desktop-device{min-height:260px}.od-rider .direction-readout{grid-template-columns:1fr;gap:16px;padding:18px}.od-rider .direction-readout dl{grid-column:auto;grid-template-columns:1fr}}@media (max-width:1180px) and (min-width:821px){.od-rider .page-lesson{grid-template-columns:226px minmax(0,1fr)}.od-rider .page-lesson .lesson-context{position:relative;grid-column:2;display:grid;grid-template-columns:repeat(3,1fr);min-height:auto;padding:0 var(--page-pad) 64px;border-left:0;background:var(--bg)}.od-rider .page-lesson .homework-card{margin:0}.od-rider .topbar-context .course-mini{display:none}}@media (max-width:820px){.od-rider,.od-rider .dir-editorial,.od-rider .dir-spatial{--page-pad:16px;--radius:6px}.od-rider{padding-bottom:66px;font-size:14px}.od-rider .page-lesson,.od-rider .page-lessons,.od-rider .page-profile{display:block}.od-rider .content-topbar,.od-rider .course-nav{display:none}.od-rider .mobile-header{position:sticky;top:0;z-index:8;display:flex;min-height:62px;align-items:center;justify-content:space-between;gap:14px;padding:9px 16px;border-bottom:1px solid var(--border);background:var(--surface)}.od-rider .mobile-brand{display:flex;min-width:0;align-items:center;gap:9px}.od-rider .mobile-brand .brand-glyph{display:none}.od-rider .mobile-brand strong{overflow:hidden;font-size:16px;letter-spacing:-.015em;text-overflow:ellipsis;white-space:nowrap}.od-rider .mobile-brand small{display:none}.od-rider .mobile-menu{display:flex;width:44px;height:44px;align-items:center;justify-content:center;gap:3px;color:var(--fg)}.od-rider .mobile-menu span{width:3px;height:3px;border-radius:50%;background:currentColor}.od-rider .mobile-bottom{position:fixed;right:0;bottom:0;left:0;z-index:10;display:grid;grid-template-columns:1fr 1fr;min-height:62px;padding:4px max(14px,env(safe-area-inset-right)) max(4px,env(safe-area-inset-bottom)) max(14px,env(safe-area-inset-left));border-top:1px solid var(--border);background:var(--surface)}.od-rider .mobile-bottom a{display:grid;min-height:50px;place-items:center;align-content:center;gap:1px;color:var(--muted);font-size:9px;font-weight:600;letter-spacing:.02em}.od-rider .mobile-bottom a.active{color:var(--accent)}.od-rider .mobile-bottom .icon{width:18px;height:18px}.od-rider .lesson-main,.od-rider .lessons-main,.od-rider .profile-main{padding:18px var(--page-pad) 36px}.od-rider .lessons-main:before{display:block;margin-bottom:9px;padding-left:8px;border-left:2px solid var(--accent);color:var(--fg);content:"Сейчас";font-size:11px;font-weight:600;letter-spacing:0;text-transform:none}.od-rider .lessons-intro{display:none}.od-rider .dir-editorial .recommended-card,.od-rider .dir-spatial .recommended-card,.od-rider .recommended-card{position:relative;display:block;min-height:214px;margin-bottom:16px;overflow:hidden;border-color:color-mix(in oklch,var(--nav) 46%,var(--border));background:var(--nav)}.od-rider .dir-spatial .recommended-copy,.od-rider .recommended-copy{position:relative;z-index:2;width:63%;min-height:214px;justify-content:center;padding:18px 0 18px 16px}.od-rider .recommended-copy .eyebrow{display:none}.od-rider .recommended-title{display:block;margin:0}.od-rider .recommended-title>span{display:block;font-size:46px}.od-rider .dir-editorial .recommended-copy h2,.od-rider .recommended-copy h2{max-width:12ch;margin-top:5px;font-size:17px}.od-rider .dir-spatial .recommended-copy p,.od-rider .recommended-copy p{display:-webkit-box;margin:7px 0 12px;overflow:hidden;color:oklch(.84 .02 250);font-size:11px;line-height:1.45;-webkit-box-orient:vertical;-webkit-line-clamp:3}.od-rider .recommended-copy .primary-button{min-height:38px;padding:8px 12px;font-size:11px}.od-rider .dir-editorial .recommended-image,.od-rider .dir-spatial .recommended-image,.od-rider .recommended-image{position:absolute;inset:0;min-height:214px}.od-rider .recommended-image img{object-position:58% 50%}.od-rider .image-caption,.od-rider .section-heading{display:none}.od-rider .dir-spatial .modules-section,.od-rider .dir-spatial .profile-form,.od-rider .dir-spatial .profile-links,.od-rider .dir-spatial .telegram-setting{padding:0;border:0;border-radius:0;background:transparent;box-shadow:none}.od-rider .module-block+.module-block{margin-top:7px}.od-rider .module-heading{padding:13px 14px}.od-rider .module-heading strong{margin-top:4px;font-size:13px}.od-rider .module-heading em{font-size:10px}.od-rider .lesson-row{grid-template-columns:26px minmax(0,1fr) 22px;gap:8px;min-height:52px;padding:7px 12px}.od-rider .lesson-row .status{grid-column:2;width:fit-content;min-height:18px;margin-top:-4px;padding:2px 5px;font-size:8px}.od-rider .lesson-open{grid-column:3;grid-row:1/3}.od-rider .lesson-index{grid-row:1/3;font-size:10px}.od-rider .lesson-copy strong{font-size:11px}.od-rider .lesson-copy small{font-size:8px}.od-rider .lesson-heading{margin-bottom:14px}.od-rider .lesson-back{min-height:38px;margin-bottom:8px}.od-rider .lesson-title-lockup{grid-template-columns:auto 1px minmax(0,1fr);gap:13px}.od-rider .lesson-title-lockup>i{height:42px}.od-rider .lesson-display-number{font-size:48px}.od-rider .lesson-title-lockup h1{max-width:14ch;font-size:24px}.od-rider .lesson-title-lockup p{display:none}.od-rider .video-poster{width:calc(100% + 32px);margin-left:-16px;border-right:0;border-left:0;border-radius:0}.od-rider .play-button{width:50px;height:50px}.od-rider .dir-editorial .theory,.od-rider .dir-spatial .theory,.od-rider .theory{padding:14px 0 18px}.od-rider .theory-lede{margin-bottom:12px;padding-bottom:10px}.od-rider .dir-editorial .theory-lede p,.od-rider .theory-lede p{font-size:13px}.od-rider .dir-spatial .theory h2,.od-rider .theory h2{margin-top:14px;font-size:15px}.od-rider .dir-spatial .theory li,.od-rider .dir-spatial .theory-callout p,.od-rider .dir-spatial .theory>p,.od-rider .theory li,.od-rider .theory-callout p,.od-rider .theory>p{font-size:13px;line-height:1.58}.od-rider .extra-practice,.od-rider .practice-section{grid-template-columns:32px minmax(0,1fr)}.od-rider .practice-criteria{display:grid}.od-rider .lesson-context,.od-rider .page-lesson .lesson-context{position:relative;display:block;min-height:0;padding:0 16px 38px;border:0;background:var(--bg)}.od-rider .context-progress{display:none}.od-rider .context-section.attention,.od-rider .homework-card{display:block;margin:8px 0 0;padding:16px}.od-rider .homework-card{border-top:1px solid var(--border)}.od-rider .profile-lede{margin-top:4px}.od-rider .identity-setting,.od-rider .setting-section,.od-rider .telegram-setting{display:grid;grid-template-columns:1fr;gap:15px;padding:16px}.od-rider .identity-setting{grid-template-columns:72px minmax(0,1fr)}.od-rider .identity-setting .primary-button,.od-rider .identity-setting .secondary-button{grid-column:1/-1}.od-rider .profile-photo{width:64px;height:74px}.od-rider .identity-fields{grid-template-columns:1fr;gap:10px}.od-rider .segmented{grid-template-columns:1fr}.od-rider .day-picker{grid-template-columns:repeat(7,1fr);gap:3px}.od-rider .day-picker label>span{min-height:38px;padding:0;font-size:10px}.od-rider .reminder-controls{grid-template-columns:1fr}.od-rider .telegram-setting{grid-template-columns:40px minmax(0,1fr)}.od-rider .telegram-setting .secondary-button{grid-column:1/-1}.od-rider .profile-links a,.od-rider .profile-links button{grid-template-columns:1fr 24px;gap:8px;padding:11px 0}.od-rider .profile-links span{grid-column:1}.od-rider .profile-links .icon{grid-column:2;grid-row:1/3}.od-rider .reviewer-panel{right:10px;bottom:72px;width:calc(100vw - 20px)}.od-rider .reviewer-body{grid-template-columns:1fr 1fr}.od-rider .reviewer-restore{right:10px;bottom:72px}}@media (prefers-reduced-motion:reduce){.od-rider *,.od-rider :after,.od-rider :before{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}.dir-rider{--bg:oklch(1 0 89.88);--surface:oklch(1 0 89.88);--fg:oklch(0.1149 0 89.88);--muted:oklch(0.46 0.006 270);--border:oklch(0.1149 0 89.88);--nav:oklch(0.1149 0 89.88);--nav-soft:oklch(0.24 0.004 270);--direction-accent:var(--accent);--font-ui:"IBM Plex Mono",SFMono-Regular,Consolas,"Liberation Mono",monospace;--font-display:"Jura","Arial Narrow","Helvetica Neue",sans-serif;--display-font:var(--font-display);--rail-width:248px;--context-width:304px;--page-pad:clamp(28px,3.2vw,52px);--content-gap:24px;--radius:0;--surface-shadow:none}.dir-rider h1,.dir-rider h2,.dir-rider h3{font-weight:600}.dir-rider .eyebrow,.dir-rider .map-module-title,.dir-rider .module-heading small,.dir-rider .nav-eyebrow,.dir-rider .reviewer-kicker,.dir-rider .route-state span,.dir-rider .status{font-family:var(--font-ui);letter-spacing:.07em;text-transform:uppercase}.dir-rider .course-nav{border-right:2px solid var(--border);background:var(--nav)}.dir-rider .brand-mark{padding-bottom:22px;border-bottom:2px solid}.dir-rider .brand-glyph{border:1px solid;border-radius:0;background:transparent;font-family:var(--font-ui)}.dir-rider .brand-mark strong{font-family:var(--font-display);font-size:17px}.dir-rider .primary-nav{gap:0}.dir-rider .primary-nav a{min-height:48px;border-top:1px solid color-mix(in oklch,white 28%,transparent);border-radius:0}.dir-rider .primary-nav a:last-child{border-bottom:1px solid color-mix(in oklch,white 28%,transparent)}.dir-rider .primary-nav a.active{background:white;color:var(--nav)}.dir-rider .primary-nav a.active:before{top:50%;right:13px;left:auto;width:6px;height:6px;border-radius:50%;transform:translateY(-50%);background:var(--direction-accent)}.dir-rider .nav-course{padding-top:20px;border-top:2px solid white}.dir-rider .content-topbar{padding-bottom:19px;border-bottom:2px solid var(--border)}.dir-rider .content-topbar h1{font-size:clamp(38px,4.4vw,68px);line-height:.95;letter-spacing:-.035em}.dir-rider .course-mini,.dir-rider .route-state,.dir-rider .student-chip{border-color:var(--border)}.dir-rider .lessons-intro{padding-top:14px;padding-bottom:14px;border-bottom:1px solid var(--border)}.dir-rider .recommended-card{grid-template-columns:minmax(340px,.9fr) minmax(430px,1.1fr);min-height:286px;border:2px solid var(--border);border-radius:0;background:var(--surface);color:var(--fg)}.dir-rider .recommended-copy{padding:28px 32px}.dir-rider .recommended-title>span{color:var(--fg);font-family:var(--font-ui);font-size:clamp(52px,5.4vw,78px);font-weight:500;line-height:.9}.dir-rider .recommended-copy h2,.dir-rider .recommended-copy p{color:var(--fg)}.dir-rider .recommended-copy h2{font-size:clamp(25px,2.7vw,38px)}.dir-rider .recommended-image{min-height:284px;border-left:2px solid var(--border)}.dir-rider .recommended-image img,.dir-rider .video-poster>img{filter:grayscale(1) contrast(1.08)}.dir-rider .image-caption{border-radius:0;font-family:var(--font-ui)}.dir-rider .primary-button,.dir-rider .secondary-button{border:2px solid var(--border);border-radius:0;font-family:var(--font-ui);font-size:12px;letter-spacing:.02em}.dir-rider .primary-button{background:var(--direction-accent);color:var(--fg);box-shadow:none}.dir-rider .secondary-button{background:var(--surface);color:var(--fg)}.dir-rider .module-block{border:1px solid var(--border);border-radius:0}.dir-rider .module-block+.module-block{margin-top:14px}.dir-rider .module-heading{padding:18px 20px;border-bottom:1px solid transparent}.dir-rider .module-block.is-open .module-heading{border-bottom-color:var(--border)}.dir-rider .module-heading strong{font-family:var(--font-display);font-size:22px}.dir-rider .lesson-row{grid-template-columns:38px minmax(0,1fr) auto 22px;min-height:58px;border-top:1px solid var(--border)}.dir-rider .lesson-row.is-recommended{background:transparent}.dir-rider .lesson-row.is-recommended:before{top:50%;right:14px;left:auto;width:6px;height:6px;border-radius:50%;transform:translateY(-50%);background:var(--fg)}.dir-rider .lesson-number{font-family:var(--font-ui);font-size:18px;font-weight:500}.dir-rider .status{border:1px solid;border-radius:0;background:transparent}.dir-rider .course-map{border-right-color:white}.dir-rider .map-course-title{padding-bottom:18px;border-bottom:2px solid white}.dir-rider .map-module+.map-module{padding-top:14px;border-top:1px solid color-mix(in oklch,white 28%,transparent)}.dir-rider .map-lesson{border-radius:0}.dir-rider .map-lesson.active{background:white}.dir-rider .map-lesson.active:before{right:11px;left:auto;width:6px;height:6px;border-radius:50%}.dir-rider .lesson-heading{padding-bottom:24px;border-bottom:2px solid var(--border)}.dir-rider .lesson-title-lockup{grid-template-columns:auto 2px minmax(0,1fr)}.dir-rider .lesson-title-lockup>i{width:2px;background:var(--border)}.dir-rider .lesson-display-number{color:var(--fg);font-family:var(--font-ui);font-size:clamp(64px,7vw,96px);font-weight:500}.dir-rider .lesson-title-lockup h1{font-size:clamp(38px,4.2vw,64px)}.dir-rider .video-poster{border:2px solid var(--border);border-radius:0}.dir-rider .theory{padding-top:28px}.dir-rider .theory-lede{padding-bottom:22px;border-bottom:2px solid var(--border)}.dir-rider .theory h2{margin-top:30px;border-top:6px solid var(--border);font-size:clamp(24px,2.4vw,34px)}.dir-rider .theory-callout{border:1px solid var(--border);border-radius:0}.dir-rider .extra-practice,.dir-rider .practice-section{border:2px solid var(--border);border-radius:0}.dir-rider .practice-number{color:var(--fg);font-family:var(--font-ui)}.dir-rider .lesson-context{border-left:2px solid var(--border);background:var(--surface)}.dir-rider .context-section,.dir-rider .homework-card{border-top-width:1px;border:1px solid var(--border);border-top:5px solid var(--border);border-radius:0}.dir-rider .profile-lede{padding-bottom:18px;border-bottom:2px solid var(--border)}.dir-rider .profile-links,.dir-rider .setting-section,.dir-rider .telegram-setting{border-top-width:1px;border:1px solid var(--border);border-top:5px solid var(--border);border-radius:0;box-shadow:none}.dir-rider .day-picker label>span,.dir-rider .profile-form input,.dir-rider .profile-form select{border-color:var(--border);border-radius:0}.od-rider .dir-dispatch{--bg:oklch(0.992 0.004 250);--surface:oklch(1 0 89.88);--fg:oklch(0.1149 0 89.88);--muted:oklch(0.43 0.009 80);--border:oklch(0.1776 0 89.88);--accent:oklch(0.8835 0.1746 93.77);--direction-accent:var(--accent);--nav:oklch(0.1149 0 89.88);--nav-soft:oklch(0.24 0.004 270);--font-ui:"IBM Plex Mono",SFMono-Regular,Consolas,monospace;--font-display:"Jura","IBM Plex Mono",sans-serif;--display-font:var(--font-display);--rail-width:252px;--context-width:310px;--page-pad:clamp(26px,3vw,48px);--content-gap:22px;--radius:4px;--surface-shadow:none}.od-rider .dir-dispatch h1,.od-rider .dir-dispatch h2,.od-rider .dir-dispatch h3{font-weight:700}.od-rider .dir-dispatch .brand-mark small,.od-rider .dir-dispatch .context-section>.eyebrow,.od-rider .dir-dispatch .eyebrow,.od-rider .dir-dispatch .homework-card>.eyebrow,.od-rider .dir-dispatch .map-module-title,.od-rider .dir-dispatch .module-heading small,.od-rider .dir-dispatch .nav-eyebrow,.od-rider .dir-dispatch .route-state span,.od-rider .dir-dispatch .status{font-family:IBM Plex Mono,SFMono-Regular,Consolas,monospace;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.od-rider .dir-dispatch .course-nav{border-right:2px solid var(--border);background:var(--nav)}.od-rider .dir-dispatch .brand-mark{padding-bottom:20px;border-bottom:2px solid white}.od-rider .dir-dispatch .brand-glyph{border:2px solid white;border-radius:50%;background:transparent;font-family:IBM Plex Mono,monospace}.od-rider .dir-dispatch .primary-nav a{border:1px solid transparent;border-radius:3px}.od-rider .dir-dispatch .primary-nav a.active{border-color:white;background:white;color:var(--nav)}.od-rider .dir-dispatch .primary-nav a.active:before{display:none}.od-rider .dir-dispatch .nav-course{padding:18px;border:1px solid color-mix(in oklch,white 56%,transparent);border-radius:4px}.od-rider .dir-dispatch .content-topbar{padding-bottom:18px;border-bottom:2px solid var(--border)}.od-rider .dir-dispatch .content-topbar h1{max-width:14ch;font-size:clamp(36px,4.2vw,62px);line-height:.95}.od-rider .dir-dispatch .course-mini,.od-rider .dir-dispatch .route-state,.od-rider .dir-dispatch .student-chip{border:2px solid var(--border);border-radius:4px;background:var(--surface)}.od-rider .dir-dispatch .lessons-intro{padding:16px 0;border-bottom:2px dashed var(--border)}.od-rider .dir-dispatch .recommended-card{grid-template-columns:minmax(340px,.88fr) minmax(430px,1.12fr);min-height:300px;overflow:visible;border:2px solid var(--border);border-radius:5px;background:var(--surface);color:var(--fg)}.od-rider .dir-dispatch .recommended-copy{padding:30px 34px;color:var(--fg)}.od-rider .dir-dispatch .recommended-title>span{color:var(--fg);font-family:IBM Plex Mono,monospace;font-size:52px}.od-rider .dir-dispatch .recommended-copy h2,.od-rider .dir-dispatch .recommended-copy p{color:var(--fg)}.od-rider .dir-dispatch .recommended-copy h2{width:fit-content;box-shadow:inset 0 -8px 0 var(--direction-accent);font-size:clamp(27px,3vw,42px)}.od-rider .dir-dispatch .recommended-image{min-height:296px;border-left:2px solid var(--border)}.od-rider .dir-dispatch .recommended-image img,.od-rider .dir-dispatch .video-poster>img{filter:saturate(.72) contrast(1.06)}.od-rider .dir-dispatch .image-caption{border:2px solid var(--border);border-radius:4px;background:var(--surface);color:var(--fg);font-family:IBM Plex Mono,monospace;box-shadow:4px 4px 0 var(--border)}.od-rider .dir-dispatch .primary-button,.od-rider .dir-dispatch .secondary-button{border:2px solid var(--border);border-radius:4px;font-family:IBM Plex Mono,monospace;font-weight:700}.od-rider .dir-dispatch .primary-button{background:var(--fg);color:white;box-shadow:5px 5px 0 var(--direction-accent)}.od-rider .dir-dispatch .primary-button:hover{transform:translate(-1px,-1px);box-shadow:6px 6px 0 var(--direction-accent)}.od-rider .dir-dispatch .primary-button:active{transform:translate(3px,3px);box-shadow:2px 2px 0 var(--direction-accent)}.od-rider .dir-dispatch .secondary-button{background:var(--surface);color:var(--fg);box-shadow:3px 3px 0 var(--border)}.od-rider .dir-dispatch .module-block{border:2px solid var(--border);border-radius:5px;background:var(--surface)}.od-rider .dir-dispatch .module-block+.module-block{margin-top:13px}.od-rider .dir-dispatch .module-heading{padding:18px 20px;border-bottom:2px solid transparent}.od-rider .dir-dispatch .module-block.is-open .module-heading{border-bottom-color:var(--border)}.od-rider .dir-dispatch .module-heading strong{font-size:21px}.od-rider .dir-dispatch .lesson-row{grid-template-columns:42px minmax(0,1fr) auto 22px;min-height:60px;border-top:1px dashed var(--border)}.od-rider .dir-dispatch .lesson-row:first-child{border-top:0}.od-rider .dir-dispatch .lesson-number{display:grid;width:30px;height:30px;place-items:center;border:2px solid var(--border);border-radius:50%;font-family:IBM Plex Mono,monospace;font-size:11px}.od-rider .dir-dispatch .lesson-row.is-recommended{background:transparent}.od-rider .dir-dispatch .lesson-row.is-recommended:before{display:none}.od-rider .dir-dispatch .status{border:1px solid;border-radius:2px;background:transparent}.od-rider .dir-dispatch .map-course-title{padding:14px;border:2px solid white;border-radius:4px}.od-rider .dir-dispatch .map-module+.map-module{padding-top:12px;border-top:1px dashed color-mix(in oklch,white 52%,transparent)}.od-rider .dir-dispatch .map-lesson{border:1px solid transparent;border-radius:3px}.od-rider .dir-dispatch .map-lesson.active{border-color:white;background:white;color:var(--nav)}.od-rider .dir-dispatch .map-lesson.active:before{display:none}.od-rider .dir-dispatch .lesson-heading{padding-bottom:22px;border-bottom:2px solid var(--border)}.od-rider .dir-dispatch .lesson-title-lockup{grid-template-columns:auto 8px minmax(0,1fr)}.od-rider .dir-dispatch .lesson-title-lockup>i{width:8px;background:var(--direction-accent)}.od-rider .dir-dispatch .lesson-display-number{color:var(--fg);font-family:IBM Plex Mono,monospace;font-size:clamp(58px,6.5vw,88px)}.od-rider .dir-dispatch .lesson-title-lockup h1{font-size:clamp(36px,4vw,58px)}.od-rider .dir-dispatch .video-poster{overflow:visible;border:2px solid var(--border);border-radius:5px}.od-rider .dir-dispatch .video-controls{border-top:2px solid var(--border);background:var(--surface);color:var(--fg)}.od-rider .dir-dispatch .play-button{border:2px solid var(--border);background:var(--surface);color:var(--fg);box-shadow:4px 4px 0 var(--border)}.od-rider .dir-dispatch .theory{padding-top:26px}.od-rider .dir-dispatch .theory-lede{padding:18px;border:2px solid var(--border);border-radius:5px;background:var(--surface)}.od-rider .dir-dispatch .theory h2{margin-top:28px;padding-top:12px;border-top:2px solid var(--border);font-size:clamp(23px,2.4vw,32px)}.od-rider .dir-dispatch .theory-callout{border:2px solid var(--border);border-radius:4px;background:var(--surface);box-shadow:4px 4px 0 var(--border)}.od-rider .dir-dispatch .extra-practice,.od-rider .dir-dispatch .practice-section{border:2px solid var(--border);border-radius:5px;background:var(--surface)}.od-rider .dir-dispatch .practice-number{display:grid;width:38px;height:38px;place-items:center;border:2px solid var(--border);border-radius:50%;color:var(--fg);font-family:IBM Plex Mono,monospace}.od-rider .dir-dispatch .practice-criteria span{border:1px solid var(--border);border-radius:3px;background:transparent}.od-rider .dir-dispatch .lesson-context{border-left:2px solid var(--border);background:color-mix(in oklch,var(--bg) 92%,var(--border))}.od-rider .dir-dispatch .context-section,.od-rider .dir-dispatch .homework-card{border:2px solid var(--border);border-radius:5px;background:var(--surface)}.od-rider .dir-dispatch .context-section.attention a+a{border-top-style:dashed}.od-rider .dir-dispatch .profile-lede{padding-bottom:18px;border-bottom:2px solid var(--border)}.od-rider .dir-dispatch .profile-links,.od-rider .dir-dispatch .setting-section,.od-rider .dir-dispatch .telegram-setting{border:2px solid var(--border);border-radius:5px;background:var(--surface);box-shadow:4px 4px 0 var(--border)}.od-rider .dir-dispatch .day-picker label>span,.od-rider .dir-dispatch .profile-form input,.od-rider .dir-dispatch .profile-form select{border:2px solid var(--border);border-radius:3px;background:var(--surface)}.od-rider .dir-dispatch .day-picker input:checked+span{background:var(--fg);color:white}@media (max-width:820px){.dir-rider,.od-rider .dir-dispatch{--page-pad:14px}.dir-rider .mobile-header,.od-rider .dir-dispatch .mobile-header{min-height:58px;border-bottom:2px solid white;background:var(--nav);color:white}.dir-rider .mobile-brand strong,.od-rider .dir-dispatch .mobile-brand strong{color:white;font-family:var(--font-display);font-size:15px}.dir-rider .mobile-menu,.od-rider .dir-dispatch .mobile-menu{color:white}.dir-rider .mobile-bottom,.od-rider .dir-dispatch .mobile-bottom{border-top:2px solid var(--border);background:var(--surface)}.dir-rider .mobile-bottom a.active,.od-rider .dir-dispatch .mobile-bottom a.active{color:var(--fg);font-weight:700}.dir-rider .lessons-main:before,.od-rider .dir-dispatch .lessons-main:before{padding-bottom:8px;padding-left:0;border-bottom:2px solid var(--border);border-left:0;font-family:IBM Plex Mono,monospace;letter-spacing:.07em;text-transform:uppercase}.dir-rider .recommended-card,.od-rider .dir-dispatch .recommended-card{min-height:224px;overflow:hidden;border:2px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--fg)}.dir-rider .recommended-copy,.od-rider .dir-dispatch .recommended-copy{width:64%;min-height:220px;padding:16px 0 16px 14px;color:var(--fg)}.dir-rider .recommended-title>span,.od-rider .dir-dispatch .recommended-title>span{color:var(--fg);font-size:40px}.dir-rider .recommended-copy h2,.dir-rider .recommended-copy p,.od-rider .dir-dispatch .recommended-copy h2,.od-rider .dir-dispatch .recommended-copy p{color:var(--fg)}.dir-rider .recommended-copy h2,.od-rider .dir-dispatch .recommended-copy h2{max-width:13ch;font-size:16px}.od-rider .dir-dispatch .recommended-copy h2{box-shadow:inset 0 -5px 0 var(--direction-accent)}.dir-rider .recommended-copy p,.od-rider .dir-dispatch .recommended-copy p{color:var(--muted)}.dir-rider .recommended-image,.od-rider .dir-dispatch .recommended-image{inset:0 0 0 auto;width:42%;min-height:220px;border-left:2px solid var(--border)}.dir-rider .module-heading strong,.od-rider .dir-dispatch .module-heading strong{font-size:16px}.dir-rider .lesson-row,.od-rider .dir-dispatch .lesson-row{grid-template-columns:34px minmax(0,1fr) 22px}.od-rider .dir-dispatch .lesson-number{width:26px;height:26px}.dir-rider .lesson-title-lockup,.od-rider .dir-dispatch .lesson-title-lockup{grid-template-columns:auto 2px minmax(0,1fr)}.od-rider .dir-dispatch .lesson-title-lockup{grid-template-columns:auto 5px minmax(0,1fr)}.dir-rider .lesson-display-number,.od-rider .dir-dispatch .lesson-display-number{font-size:46px}.dir-rider .lesson-title-lockup h1,.od-rider .dir-dispatch .lesson-title-lockup h1{font-size:23px}.dir-rider .video-poster,.od-rider .dir-dispatch .video-poster{border-right:0;border-left:0}.dir-rider .theory h2{border-top-width:4px;font-size:19px}.od-rider .dir-dispatch .theory-lede{padding:14px}.dir-rider .lesson-context,.od-rider .dir-dispatch .lesson-context{border-left:0}.dir-rider .context-section,.dir-rider .homework-card,.od-rider .dir-dispatch .context-section,.od-rider .dir-dispatch .homework-card{border-width:2px}.dir-rider .profile-links,.dir-rider .setting-section,.dir-rider .telegram-setting,.od-rider .dir-dispatch .profile-links,.od-rider .dir-dispatch .setting-section,.od-rider .dir-dispatch .telegram-setting{padding-right:14px;padding-left:14px}}@media (prefers-reduced-motion:reduce){.dir-rider *,.od-rider .dir-dispatch *{scroll-behavior:auto!important;transition-duration:.01ms!important}}.dir-rider{--bg:oklch(0.988 0.003 260);--surface:oklch(0.998 0.001 260);--fg:oklch(0.16 0.007 260);--muted:oklch(0.48 0.01 260);--border:oklch(0.74 0.008 260);--nav:oklch(0.16 0.007 260);--nav-soft:oklch(0.25 0.008 260);--rule:var(--fg);--soft-rule:color-mix(in oklch,var(--fg) 24%,transparent);--accent-soft:color-mix(in oklch,var(--direction-accent) 14%,var(--surface));--action:oklch(0.57 0.19 38);--practice-surface:oklch(0.94 0.075 93);--status-none:#ffd700;--status-review:oklch(0.55 0.006 80);--status-revision:#732123;--status-locked:oklch(0.70 0.012 80);--status-accepted:#009900;--status-shade:oklch(0.18 0 0);--lesson-number-border:oklch(0.78 0.08 92);--rail-width:300px;--context-width:360px;--page-pad:clamp(30px,3.4vw,54px);--content-gap:26px;background:var(--bg);font-size:14px;text-rendering:optimizeLegibility}.dir-rider .page-lesson{--lesson-header-end:296px}.dir-rider :focus-visible{outline-color:var(--fg)}.dir-rider h1,.dir-rider h2,.dir-rider h3{text-wrap:balance}.dir-rider .context-homework-line b,.dir-rider .context-percent,.dir-rider .course-mini strong,.dir-rider .lesson-display-number,.dir-rider .lesson-index,.dir-rider .recommended-title>span{font-variant-numeric:tabular-nums}.od-rider .skip-link{position:fixed;top:8px;left:8px;z-index:40;padding:10px 13px;transform:translateY(-150%);border:2px solid var(--fg);background:var(--surface);color:var(--fg);font-family:var(--font-ui);font-size:12px;transition:transform var(--motion)}.od-rider .skip-link:focus{transform:translateY(0)}.dir-rider .course-nav{border-right:0}.dir-rider .page-lessons>.course-nav{overflow-y:auto}.dir-rider .brand-mark{padding-bottom:20px;border-bottom:1px solid color-mix(in oklch,white 38%,transparent)}.dir-rider .course-map .brand-mark{flex:0 0 65px}.dir-rider .brand-glyph{width:32px;height:32px;border-color:color-mix(in oklch,white 62%,transparent);font-size:9px}.dir-rider .brand-mark strong{font-size:16px;letter-spacing:-.01em}.dir-rider .primary-nav a{min-height:46px;border-top-color:color-mix(in oklch,white 18%,transparent);font-size:11px}.dir-rider .primary-nav a:last-child{border-bottom-color:color-mix(in oklch,white 18%,transparent)}.dir-rider .primary-nav a.active:before{right:15px;width:5px;height:5px}.dir-rider .primary-nav a.active{background:transparent;color:white;box-shadow:none}.dir-rider .nav-course{padding:18px 0 0;border-top:1px solid color-mix(in oklch,white 38%,transparent)}.dir-rider .nav-course strong{max-width:18ch;font-family:var(--font-display);font-size:17px;line-height:1.15}.dir-rider .nav-course small{line-height:1.55}.dir-rider .nav-progress i{background:var(--direction-accent)}.dir-rider .nav-attention{margin-top:24px;padding-top:18px;border-top:1px solid color-mix(in oklch,white 38%,transparent)}.dir-rider .nav-attention>.nav-eyebrow{color:oklch(.76 .018 255)}.dir-rider .nav-attention-list{margin-top:9px}.dir-rider .nav-attention-list a{display:grid;grid-template-columns:32px minmax(0,1fr);gap:10px;padding:11px 0;border-bottom:1px solid color-mix(in oklch,white 18%,transparent);color:oklch(.9 .012 255)}.dir-rider .nav-attention-list a:hover{color:white}.dir-rider .nav-attention-list b{display:grid;width:32px;height:32px;place-items:center;border:1px solid color-mix(in oklch,white 34%,transparent);color:white;font-family:var(--font-display);font-size:12px}.dir-rider .nav-attention-list small,.dir-rider .nav-attention-list strong{display:block}.dir-rider .nav-attention-list strong{overflow-wrap:anywhere;font-size:12px;font-weight:500;line-height:1.35}.dir-rider .nav-attention-list small{margin-top:5px;font-size:11px;font-weight:600;line-height:1.35}.dir-rider .nav-attention-status.is-revision{color:color-mix(in oklch,var(--status-revision) 72%,white)}.dir-rider .nav-attention-status.is-none{color:color-mix(in oklch,var(--status-none) 72%,white)}.dir-rider .nav-utility-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid color-mix(in oklch,white 22%,transparent);border-bottom:1px solid color-mix(in oklch,white 22%,transparent)}.dir-rider .nav-utility-row a{position:relative;min-width:0;min-height:46px;justify-content:center;gap:7px;padding:8px 6px;border-radius:0;font-size:11px}.dir-rider .nav-utility-row a.active{color:white}.dir-rider .nav-utility-row a.active:after{position:absolute;top:8px;right:8px;width:5px;height:5px;border-radius:50%;background:var(--direction-accent);content:""}.dir-rider .nav-utility-row a+a{border-left:1px solid color-mix(in oklch,white 22%,transparent)}.dir-rider .nav-utility-row .icon{width:16px;height:16px}.dir-rider .sync-state i{background:var(--status-none)}.dir-rider .content-topbar{margin-bottom:20px;padding-bottom:18px;border-bottom:2px solid var(--rule)}.dir-rider .content-topbar h1{max-width:16ch;font-size:clamp(36px,3.8vw,54px);line-height:.98;letter-spacing:-.028em}.dir-rider .mobile-lessons-title{display:none}.dir-rider .topbar-context{align-items:stretch}.dir-rider .course-mini,.dir-rider .route-state,.dir-rider .student-chip{border:0;border-left:1px solid var(--soft-rule);border-radius:0;background:transparent}.dir-rider .student-chip{padding-left:14px}.dir-rider .course-mini{padding-right:0}.dir-rider .lessons-intro{align-items:stretch;margin-bottom:22px;padding:0 0 18px;border-bottom:1px solid var(--soft-rule)}.dir-rider .lessons-intro p{max-width:62ch;font-size:13px;line-height:1.6}.dir-rider .route-state{padding:2px 0 2px 16px;border-left:3px solid var(--direction-accent)}.dir-rider .recommended-card{grid-template-columns:minmax(350px,.9fr) minmax(430px,1.1fr);min-height:294px;margin-bottom:34px;overflow:visible;border:0;border-top:3px solid var(--rule);border-bottom:1px solid var(--rule);background:transparent}.dir-rider .recommended-copy{padding:27px 34px 31px 0;color:var(--fg)}.dir-rider .recommended-copy .eyebrow{color:var(--muted)}.dir-rider .recommended-title{gap:18px}.dir-rider .recommended-title>span{color:var(--direction-accent);font-size:clamp(52px,5vw,72px);letter-spacing:-.055em}.dir-rider .recommended-copy h2{max-width:14ch;color:var(--fg);font-size:clamp(27px,2.7vw,38px);line-height:1.02;letter-spacing:-.02em}.dir-rider .recommended-copy p{max-width:52ch;margin-bottom:20px;color:var(--muted);font-size:13px;line-height:1.6}.dir-rider .recommended-image{min-height:290px;border-left:1px solid var(--rule)}.dir-rider .recommended-image img,.dir-rider .video-poster>img{filter:grayscale(1) contrast(1.12)}.dir-rider .image-caption{right:14px;bottom:14px;border:1px solid white;background:var(--nav);color:white}.dir-rider .primary-button,.dir-rider .secondary-button{min-height:44px;transition:transform .14s cubic-bezier(.23,1,.32,1),box-shadow var(--motion),background var(--motion)}.dir-rider .primary-button{border-color:var(--fg);background:var(--fg);color:white;box-shadow:0 4px 0 var(--direction-accent)}.dir-rider .primary-button:hover{background:color-mix(in oklch,var(--fg) 92%,white);box-shadow:0 5px 0 var(--direction-accent)}.dir-rider .primary-button:active{transform:translateY(3px);box-shadow:0 1px 0 var(--direction-accent)}.dir-rider .recommended-copy .primary-button{width:100%;min-height:52px;border:2px solid var(--fg);background:var(--action);color:white;font-size:14px;box-shadow:5px 5px 0 var(--fg)}.dir-rider .recommended-copy .primary-button:hover{background:color-mix(in oklch,var(--action) 90%,black);box-shadow:6px 6px 0 var(--fg);transform:translate(-1px,-1px)}.dir-rider .recommended-copy .primary-button:active{background:var(--action);box-shadow:2px 2px 0 var(--fg);transform:translate(3px,3px)}.dir-rider .recommended-copy .primary-button .icon{width:18px;height:18px}.dir-rider .secondary-button{background:transparent}.dir-rider .secondary-button:hover{background:color-mix(in oklch,var(--fg) 6%,transparent)}.dir-rider .section-heading{margin-bottom:0;padding:20px 0 16px;border-top:3px solid var(--rule)}.dir-rider .section-heading h2{font-size:24px}.dir-rider .module-block,.dir-rider .module-block+.module-block{margin-top:0;border:0;border-top:1px solid var(--rule);background:transparent}.dir-rider .module-block:last-child{border-bottom:2px solid var(--rule)}.dir-rider .module-heading{padding:19px 2px 18px;border-bottom:0}.dir-rider .module-block.is-open .module-heading{border-bottom:1px solid var(--soft-rule)}.dir-rider .module-heading small,.dir-rider .status{letter-spacing:.01em;text-transform:none}.dir-rider .module-heading strong{font-size:21px;line-height:1.1}.dir-rider .module-heading em{margin-top:5px;font-size:11px}.dir-rider .lesson-row{min-height:60px;padding-right:2px;padding-left:2px;border-top:1px solid var(--soft-rule);transition:background var(--motion),padding var(--motion)}.dir-rider .lesson-row:hover:not(.is-locked){padding-right:10px;padding-left:10px;background:color-mix(in oklch,var(--fg) 5%,transparent)}.dir-rider .lesson-row:first-child{border-top:0}.dir-rider .lesson-index{display:grid;width:32px;height:32px;place-items:center;border:1px solid color-mix(in oklch,var(--lesson-number-border) 58%,transparent);background:transparent;color:var(--fg);font-size:11px}.dir-rider .lesson-copy strong{font-size:13px}.dir-rider .status{width:172px;max-width:100%;min-height:34px;justify-content:flex-start;padding:6px 9px;border:1px solid var(--border);background:var(--surface);font-size:12px;line-height:1.35}.dir-rider .status .icon{display:block;width:13px;height:13px}.dir-rider .status-none{border-color:var(--status-none);background:var(--status-none);color:white}.dir-rider .status-review{border-color:color-mix(in oklch,var(--status-review) 55%,var(--status-shade));background:color-mix(in oklch,var(--status-review) 76%,var(--status-shade));color:white}.dir-rider .status-revision{border-color:var(--status-revision);background:var(--status-revision);color:white}.dir-rider .status-accepted{border-color:var(--status-accepted);background:var(--status-accepted);color:white}.dir-rider .status-locked{border-color:color-mix(in oklch,var(--status-locked) 48%,transparent);background:transparent;color:var(--muted)}.dir-rider .lesson-row.is-locked .lesson-index{border-color:color-mix(in oklch,var(--status-locked) 45%,transparent);background:transparent;color:var(--muted)}.dir-rider .lesson-row.is-locked .lesson-copy strong{color:color-mix(in oklch,var(--muted) 82%,var(--surface))}.dir-rider .status-locked .icon{opacity:.52}.dir-rider .map-course-title{padding:0 8px 18px;border:0}.dir-rider .map-header-block{display:flex;flex:0 0 calc(var(--lesson-header-end) - 87px);flex-direction:column;justify-content:space-between;border-bottom:2px solid color-mix(in oklch,white 62%,transparent)}.dir-rider .map-utility-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));margin:12px 0 18px;border-top:1px solid color-mix(in oklch,white 22%,transparent);border-bottom:1px solid color-mix(in oklch,white 22%,transparent)}.dir-rider .map-utility-nav a{display:flex;min-width:0;min-height:46px;align-items:center;gap:8px;padding:8px;color:oklch(.9 .012 255);font-size:12px;font-weight:500;line-height:1.3}.dir-rider .map-utility-nav a+a{border-left:1px solid color-mix(in oklch,white 22%,transparent)}.dir-rider .map-utility-nav a:hover{background:color-mix(in oklch,white 8%,transparent);color:white}.dir-rider .map-utility-nav .icon{width:17px;height:17px;flex:0 0 auto}.dir-rider .map-course-title span{font-size:11px}.dir-rider .map-course-title strong{margin-top:7px;font-size:15px;line-height:1.4}.dir-rider .map-module+.map-module{padding-top:15px;border-top-color:color-mix(in oklch,white 18%,transparent)}.dir-rider .map-module-title{padding-right:10px;padding-bottom:9px;padding-left:10px;color:oklch(.76 .018 255);font-size:11px;line-height:1.45}.dir-rider .map-lesson{grid-template-columns:36px minmax(0,1fr);gap:11px;min-height:64px;padding:9px 10px;color:oklch(.8 .018 255);font-size:13px;line-height:1.42}.dir-rider .map-lesson b{display:grid;width:36px;height:36px;place-items:center;border:1px solid color-mix(in oklch,white 34%,transparent);color:oklch(.82 .016 255);font-size:12px}.dir-rider .context-section.attention a strong,.dir-rider .map-lesson-copy{min-width:0;overflow-wrap:anywhere}.dir-rider .map-lesson-copy,.dir-rider .map-lesson-copy>span{display:block}.dir-rider .map-status-label{display:flex;align-items:center;gap:7px;margin-top:5px;font-size:12px;font-weight:500;line-height:1.3}.dir-rider .map-lesson.active{color:var(--nav)}.dir-rider .map-lesson.active:before{display:none}.dir-rider .map-lesson.active b{border-color:var(--direction-accent);background:var(--direction-accent);color:var(--fg)}.dir-rider .map-status{width:8px;height:8px;flex:0 0 auto;border:0;border-radius:50%}.dir-rider .map-status-none{background:var(--status-none)}.dir-rider .map-status-label-none{color:color-mix(in oklch,var(--status-none) 72%,white)}.dir-rider .map-status-review{background:var(--status-review)}.dir-rider .map-status-label-review{color:color-mix(in oklch,var(--status-review) 72%,white)}.dir-rider .map-status-revision{background:var(--status-revision)}.dir-rider .map-status-label-revision{color:color-mix(in oklch,var(--status-revision) 72%,white)}.dir-rider .map-status-accepted{background:var(--status-accepted)}.dir-rider .map-status-label-accepted{color:color-mix(in oklch,var(--status-accepted) 72%,white)}.dir-rider .map-status-label-locked{color:oklch(.67 .012 80)}.dir-rider .map-status-locked{background:var(--status-locked)}.dir-rider .map-lesson.active .map-status-label-none{color:color-mix(in oklch,var(--status-none) 78%,var(--fg))}.dir-rider .map-lesson.active .map-status-label-review{color:color-mix(in oklch,var(--status-review) 84%,var(--fg))}.dir-rider .map-lesson.active .map-status-label-revision{color:color-mix(in oklch,var(--status-revision) 78%,var(--fg))}.dir-rider .map-lesson.active .map-status-label-accepted{color:color-mix(in oklch,var(--status-accepted) 78%,var(--fg))}.dir-rider .lesson-main{padding-top:30px}.dir-rider .extra-practice,.dir-rider .lesson-heading,.dir-rider .practice-section,.dir-rider .theory,.dir-rider .video-poster{width:min(100%,930px)}.dir-rider .lesson-heading{display:flex;min-height:calc(var(--lesson-header-end) - 30px);flex-direction:column;margin-bottom:18px;padding:0 0 24px;border-bottom:2px solid var(--rule)}.dir-rider .lesson-back{flex:0 0 auto}.dir-rider .lesson-title-lockup{flex:1 1 auto;grid-template-columns:auto 1px minmax(0,1fr);gap:20px}.dir-rider .lesson-title-lockup>i{width:1px;height:68px;background:var(--rule)}.dir-rider .lesson-display-number{color:var(--direction-accent);font-size:clamp(60px,6.2vw,82px)}.dir-rider .lesson-title-lockup h1{max-width:16ch;font-size:clamp(34px,3.7vw,52px);line-height:.98}.dir-rider .lesson-title-lockup p{max-width:58ch;font-size:13px;line-height:1.55}.dir-rider .video-poster{border:0;border-top:2px solid var(--rule);border-bottom:2px solid var(--rule)}.dir-rider .play-button{border-color:white;color:var(--fg);box-shadow:none}.dir-rider .play-button,.dir-rider .video-progress i{background:var(--surface)}.dir-rider .theory{max-width:66ch;padding:28px 0 30px;counter-reset:rider-theory}.dir-rider .theory-lede{margin-bottom:26px;padding-bottom:21px;border-bottom:2px solid var(--rule)}.dir-rider .theory-lede p{color:var(--fg);font-size:16px;line-height:1.62}.dir-rider .theory h2{counter-increment:rider-theory;display:grid;grid-template-columns:2.25ch minmax(0,1fr);align-items:baseline;gap:.45em;margin:28px 0 10px;padding-top:12px;border-top:2px solid var(--rule);color:var(--direction-accent);font-family:var(--font-display);font-size:clamp(22px,2vw,26px);line-height:1.15;letter-spacing:-.015em}.dir-rider .theory h2:before{color:var(--direction-accent);content:"0" counter(rider-theory) ".";font-family:inherit;font-size:1em;line-height:inherit;letter-spacing:inherit}.dir-rider .theory li,.dir-rider .theory-callout p,.dir-rider .theory>p{color:color-mix(in oklch,var(--fg) 86%,var(--muted));font-size:15px;line-height:1.7}.dir-rider .theory>p{margin-bottom:12px}.dir-rider .theory li+li{margin-top:9px}.dir-rider .theory-callout{margin:20px 0;padding:16px 0 16px 18px;border:0;border-left:4px solid var(--rule);background:transparent}.dir-rider .extra-practice,.dir-rider .practice-section{grid-template-columns:42px minmax(0,1fr);gap:14px;padding:24px 22px 26px;border:2px solid var(--rule);background:var(--practice-surface)}.dir-rider .extra-practice{margin-top:18px;padding:20px 0 22px;border:0;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);background:transparent}.dir-rider .extra-practice:before{content:none}.dir-rider .practice-number{align-self:start;margin-top:21px;font-weight:600}.dir-rider .extra-practice h3,.dir-rider .practice-number,.dir-rider .practice-section h2{color:var(--direction-accent);font-family:var(--font-display);font-size:20px;line-height:1.15;letter-spacing:-.015em}.dir-rider .extra-practice p,.dir-rider .practice-section p{color:color-mix(in oklch,var(--fg) 88%,var(--muted));font-size:14px;line-height:1.65}.dir-rider .practice-criteria span{padding:7px 0;border-radius:0;border-bottom:1px solid var(--soft-rule);background:transparent;color:var(--fg);font-size:11px;line-height:1.45}.dir-rider .lesson-context{gap:22px;padding:82px 24px 28px;border-left:1px solid var(--soft-rule);background:var(--bg)}.dir-rider .context-section,.dir-rider .homework-card{padding:16px 0 0;border:0;border-top:4px solid var(--rule);background:transparent}.dir-rider .context-section.attention{border-top-width:1px}.dir-rider .context-progress{display:flex;min-height:calc(var(--lesson-header-end) - 82px);flex-direction:column;padding-top:0;padding-bottom:24px;border-top:0;border-bottom:2px solid var(--rule)}.dir-rider .context-section>.eyebrow,.dir-rider .homework-card>.eyebrow{font-size:13px;font-weight:600;line-height:1.45;letter-spacing:.01em}.dir-rider .context-percent{color:var(--direction-accent);font-family:var(--font-display);font-size:54px;font-weight:500;line-height:1;letter-spacing:-.045em}.dir-rider .context-percent small{margin-left:2px;color:var(--fg);font-family:var(--font-ui);font-size:20px;letter-spacing:-.01em}.dir-rider .context-homework-line{display:flex;align-items:baseline;gap:9px;margin-top:13px}.dir-rider .context-homework-line b{color:var(--fg);font-family:var(--font-display);font-size:22px;line-height:1}.dir-rider .context-homework-line span{max-width:25ch;margin-top:0;color:color-mix(in oklch,var(--fg) 78%,var(--muted));font-size:13px;line-height:1.5}.dir-rider .context-progress .course-segments{margin-top:auto}.dir-rider .course-segments i.done{background:var(--direction-accent)}.dir-rider .context-section.attention a{display:flex;flex-direction:column;gap:4px;padding:10px 0;border-bottom:1px solid var(--soft-rule)}.dir-rider .context-section.attention a strong{color:var(--fg);font-size:13px;line-height:1.45}.dir-rider .context-section.attention a span{font-size:12px;line-height:1.4}.dir-rider .attention-status.is-revision{color:color-mix(in oklch,var(--status-revision) 82%,var(--fg))}.dir-rider .attention-status.is-none{color:color-mix(in oklch,var(--status-none) 80%,var(--fg))}.dir-rider .homework-card{margin-top:auto}.dir-rider .homework-brief p{color:color-mix(in oklch,var(--fg) 78%,var(--muted));font-size:13px;line-height:1.55}.dir-rider .homework-brief strong,.dir-rider .homework-criterion strong,.dir-rider .homework-status>strong{font-size:12px}.dir-rider .homework-criterion span{color:color-mix(in oklch,var(--fg) 78%,var(--muted));font-size:12px;line-height:1.45}.dir-rider .homework-card>small{color:color-mix(in oklch,var(--fg) 68%,var(--muted));font-size:11px;line-height:1.5}.dir-rider .homework-card button.primary-button{min-height:52px;border-color:var(--fg);background:var(--action);color:white;font-size:14px;font-weight:600;box-shadow:5px 5px 0 var(--fg)}.dir-rider .homework-card button.primary-button .icon{width:19px;height:19px}.dir-rider .homework-card button.primary-button:hover{background:color-mix(in oklch,var(--action) 90%,black);box-shadow:6px 6px 0 var(--fg);transform:translate(-1px,-1px)}.dir-rider .homework-card button.primary-button:active{background:var(--action);box-shadow:2px 2px 0 var(--fg);transform:translate(3px,3px)}.dir-rider .lesson-pagination{display:grid;width:min(100%,930px);grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:34px auto 0;padding-top:22px;border-top:2px solid var(--rule)}.dir-rider .lesson-pagination-mobile{display:none}.dir-rider .lesson-pagination-link{display:grid;min-width:0;min-height:72px;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:12px;padding:12px 14px;border:1px solid var(--rule);background:var(--surface);transition:color var(--motion),background var(--motion),transform .14s cubic-bezier(.23,1,.32,1)}.dir-rider .lesson-pagination-link.is-next{grid-template-columns:minmax(0,1fr) auto;text-align:right}.dir-rider .lesson-pagination-link>span{min-width:0}.dir-rider .lesson-pagination-link span span,.dir-rider .lesson-pagination-link span strong{display:block}.dir-rider .lesson-pagination-link span span{margin-bottom:4px;color:var(--muted);font-size:10px;letter-spacing:.06em;text-transform:uppercase}.dir-rider .lesson-pagination-link span strong{overflow-wrap:anywhere;font-family:var(--font-display);font-size:14px;line-height:1.3}.dir-rider a.lesson-pagination-link:hover{background:var(--fg);color:white;transform:translateY(-2px)}.dir-rider a.lesson-pagination-link:hover span span{color:color-mix(in oklch,white 72%,transparent)}.dir-rider .lesson-pagination-link.is-disabled{color:var(--muted);opacity:.64}@media (prefers-reduced-motion:reduce){.dir-rider .homework-card button.primary-button,.dir-rider .lesson-pagination-link{transition:none}}.dir-rider .profile-lede{margin-bottom:0;padding-bottom:20px;border-bottom:2px solid var(--rule)}.dir-rider .mobile-profile-title{display:none}.dir-rider .profile-lede p{font-size:14px;line-height:1.6}.dir-rider .profile-form{gap:0}.dir-rider .profile-main .eyebrow{font-size:12px;letter-spacing:.06em}.dir-rider .profile-links,.dir-rider .setting-section,.dir-rider .telegram-setting{padding:24px 0 28px;border:0;border-top:4px solid var(--rule);background:transparent}.dir-rider .reminder-setting,.dir-rider .routine-setting{grid-template-columns:minmax(210px,.42fr) minmax(0,1fr);gap:32px}.dir-rider .identity-setting{grid-template-columns:104px minmax(0,1fr) auto;align-items:center}.dir-rider .profile-photo{width:92px;height:108px;border-radius:0;background:var(--fg)}.dir-rider .profile-photo img{filter:grayscale(1) contrast(1.12)}.dir-rider .setting-intro h2,.dir-rider .telegram-setting h2{font-family:var(--font-display);font-size:22px;line-height:1.15}.dir-rider .setting-intro p,.dir-rider .telegram-setting p{font-size:13px;font-style:italic;line-height:1.6}.dir-rider .profile-form label>span,.dir-rider .profile-form legend{margin-bottom:8px;font-size:13px;line-height:1.45}.dir-rider .profile-form legend{font-style:italic;font-weight:500}.dir-rider .profile-form label>small{font-size:12px;line-height:1.5}.dir-rider .profile-form input:not([type]),.dir-rider .profile-form input[type=email],.dir-rider .profile-form input[type=text],.dir-rider .profile-form input[type=time],.dir-rider .profile-form select{min-height:44px;padding:9px 0;border:0;border-bottom:1px solid var(--rule);border-radius:0;background:transparent;font-size:14px}.dir-rider .profile-form input:read-only{color:var(--fg)}.dir-rider .profile-form fieldset:disabled{opacity:1}.dir-rider .profile-form fieldset:disabled label{cursor:default}.dir-rider .profile-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px}.dir-rider .profile-actions .primary-button,.dir-rider .profile-actions .secondary-button{min-width:112px}.dir-rider .profile-actions .primary-button.is-loading{cursor:progress;opacity:.72}.dir-rider .profile-actions .secondary-button:disabled{cursor:not-allowed;opacity:.45}.dir-rider .routine-controls{gap:22px}.dir-rider .mode-fieldset{padding-bottom:22px;border-bottom:1px solid var(--soft-rule)}.dir-rider .segmented{align-items:stretch;gap:8px;padding:0;border:0;border-radius:0;background:transparent}.dir-rider .segmented label{display:grid;min-width:0}.dir-rider .profile-form .day-picker input[type=checkbox],.dir-rider .profile-form .segmented input[type=radio],.dir-rider .profile-form .switch-row input[type=checkbox]{position:absolute;width:1px!important;height:1px!important;margin:-1px!important;padding:0!important;border:0!important;opacity:0!important;overflow:hidden!important;pointer-events:none;appearance:none;clip:rect(0 0 0 0);clip-path:inset(50%)}.dir-rider .plan-field{grid-column:1/-1;max-width:280px}.dir-rider .plan-field>dt{display:block;margin-bottom:8px;font-size:13px;font-weight:600;line-height:1.45}.dir-rider .plan-field>dd{margin:0}.dir-rider .plan-value{display:block;min-height:44px;padding:9px 0;border-bottom:1px solid var(--rule);font-size:14px;font-weight:600;line-height:26px;letter-spacing:.06em}.dir-rider .plan-note{margin-top:5px!important;color:var(--muted);font-size:12px;line-height:1.5}.dir-rider .segmented label>span{display:grid;height:100%;min-height:76px;grid-template-columns:18px minmax(0,1fr);align-items:center;gap:12px;margin:0;padding:12px 14px;border:1px solid var(--soft-rule);border-radius:0;background:transparent;color:var(--fg)}.dir-rider .segmented label>span:before{width:7px;height:12px;margin-left:4px;border-right:2px solid var(--direction-accent);border-bottom:2px solid var(--direction-accent);content:"";opacity:0;transform:rotate(45deg) translateY(-1px);transition:opacity .14s cubic-bezier(.23,1,.32,1)}.dir-rider .mode-copy em,.dir-rider .mode-copy strong{display:block}.dir-rider .mode-copy strong{font-family:var(--font-display);font-size:15px;line-height:1.3}.dir-rider .mode-copy em{margin-top:3px;color:var(--muted);font-size:13px;font-style:italic;font-weight:400;line-height:1.4}.dir-rider .segmented input:checked+span{border-color:var(--rule);background:color-mix(in oklch,var(--practice-surface) 72%,transparent);color:var(--fg);box-shadow:none}.dir-rider .segmented input:checked+span:before{opacity:1}.dir-rider .day-picker input:focus-visible+span,.dir-rider .segmented input:focus-visible+span,.dir-rider .switch-row input:focus-visible+i{outline:3px solid var(--fg);outline-offset:3px}.dir-rider .day-picker{width:100%;grid-template-columns:repeat(7,minmax(0,1fr));gap:4px}.dir-rider .day-picker label>span{min-height:52px;margin:0;border:1px solid var(--soft-rule);border-radius:0;background:transparent;color:var(--fg);font-size:13px;font-weight:500}.dir-rider .day-picker label>span:after,.dir-rider .day-picker label>span:before{content:none}.dir-rider .day-picker input:checked+span{background:color-mix(in oklch,var(--practice-surface) 76%,transparent);color:var(--fg);box-shadow:inset 0 -3px 0 var(--direction-accent)}.dir-rider .field-message{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-top:10px;color:var(--muted);font-size:13px;line-height:1.5}.dir-rider .field-message em{font-style:italic}.dir-rider .field-message strong{flex:0 0 auto;color:var(--fg);font-weight:500}.dir-rider .field-message.is-error,.dir-rider .field-message.is-error strong{color:var(--danger)}.dir-rider .switch-row strong{font-size:14px;line-height:1.45}.dir-rider .switch-row small{font-size:13px;font-style:italic;line-height:1.45}.dir-rider .switch-row{border-top:1px solid var(--soft-rule)}.dir-rider .profile-form:not(.is-editing) .switch-row,.dir-rider .profile-form[aria-busy=true] .switch-row{cursor:default}.dir-rider .switch-row i,.dir-rider .switch-row i:after{border-radius:0}.dir-rider .telegram-setting{grid-template-columns:58px minmax(0,1fr) auto;margin-top:0}.dir-rider .setting-icon{width:48px;height:48px;border:1px solid var(--direction-accent);border-radius:0;background:var(--accent-soft)}.dir-rider .telegram-setting.state-connected .setting-icon{border-color:var(--success);background:color-mix(in oklch,var(--success) 14%,var(--surface));color:color-mix(in oklch,var(--success) 76%,var(--fg))}.dir-rider .telegram-setting.state-error .setting-icon{border-color:var(--danger);background:color-mix(in oklch,var(--danger) 12%,var(--surface));color:var(--danger)}.dir-rider .telegram-setting.state-error{border-top-color:var(--danger)}.dir-rider .telegram-setting.state-error h2{color:var(--danger)}.dir-rider .telegram-setting.is-loading .setting-icon{border-color:var(--direction-accent);background:var(--accent-soft);color:var(--direction-accent)}.dir-rider .telegram-setting.is-loading .secondary-button{cursor:progress;opacity:.68}.dir-rider .profile-links{margin-top:0;padding:0}.dir-rider .profile-links a,.dir-rider .profile-links button{min-height:62px;border-bottom-color:var(--soft-rule);transition:background .15s cubic-bezier(.23,1,.32,1)}.dir-rider .profile-links a:hover,.dir-rider .profile-links button:hover{background:color-mix(in oklch,var(--practice-surface) 38%,transparent)}.dir-rider .profile-links strong{font-family:var(--font-display);font-size:15px}.dir-rider .profile-links span{font-size:13px;line-height:1.45}.dir-rider .profile-links .icon{transition:transform .14s cubic-bezier(.23,1,.32,1)}.dir-rider .profile-links a:hover .icon,.dir-rider .profile-links button:hover .icon{transform:translateX(3px)}.dir-rider .modal{border:2px solid var(--rule);border-radius:0;box-shadow:8px 8px 0 color-mix(in oklch,var(--fg) 22%,transparent)}@media (prefers-reduced-motion:reduce){.dir-rider .profile-links .icon,.dir-rider .profile-links a,.dir-rider .profile-links button,.dir-rider .segmented label>span:before,.dir-rider .switch-row i:after{transition:none}}@media (max-width:1180px) and (min-width:961px){.dir-rider .page-lessons,.dir-rider .page-profile{grid-template-columns:250px minmax(0,1fr)}.dir-rider .page-lessons .recommended-card{grid-template-columns:minmax(230px,.9fr) minmax(220px,1.1fr)}.dir-rider .page-lessons .recommended-copy{padding-right:24px}.dir-rider .page-lesson{grid-template-columns:minmax(0,1fr) var(--context-width)}.dir-rider .page-lesson>.course-map{display:none}.dir-rider .page-lesson .lesson-main{grid-column:1}.dir-rider .page-lesson .lesson-context{position:sticky;grid-column:2;display:flex;min-height:100dvh;padding:82px 24px 28px;border-top:0;border-left:1px solid var(--soft-rule)}}@media (max-width:960px) and (min-width:821px){.dir-rider .page-lessons,.dir-rider .page-profile{grid-template-columns:250px minmax(0,1fr)}.dir-rider .page-profile .reminder-setting,.dir-rider .page-profile .routine-setting,.dir-rider .page-profile .setting-section{grid-template-columns:minmax(0,1fr);gap:18px}.dir-rider .page-profile .identity-setting{grid-template-columns:80px minmax(0,1fr)}.dir-rider .page-profile .identity-setting .primary-button,.dir-rider .page-profile .identity-setting .secondary-button,.dir-rider .page-profile .telegram-setting .secondary-button{grid-column:1/-1}.dir-rider .page-profile .identity-setting .profile-actions{grid-column:1/-1;justify-content:stretch}.dir-rider .page-profile .profile-actions .primary-button,.dir-rider .page-profile .profile-actions .secondary-button{flex:1 1 0}.dir-rider .page-lessons .recommended-card{grid-template-columns:minmax(230px,.9fr) minmax(220px,1.1fr)}.dir-rider .page-lessons .recommended-copy{padding-right:24px}.dir-rider .page-lesson{grid-template-columns:minmax(0,1fr)}.dir-rider .page-lesson>.course-map{display:none}.dir-rider .page-lesson .lesson-context,.dir-rider .page-lesson .lesson-main{grid-column:1}.dir-rider .page-lesson .lesson-context{position:relative;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));min-height:auto;gap:20px;padding:26px var(--page-pad) 64px;border-top:2px solid var(--rule);border-left:0}.dir-rider .context-section,.dir-rider .homework-card{margin:0}.dir-rider .lesson-heading{min-height:auto}.dir-rider .context-progress{min-height:auto;padding-top:16px;padding-bottom:0;border-top:4px solid var(--rule);border-bottom:0}}@media (max-width:820px){.dir-rider{--page-pad:15px}.dir-rider .mobile-header{min-height:60px;padding-right:12px;padding-left:15px;border-bottom:1px solid color-mix(in oklch,white 38%,transparent)}.dir-rider .mobile-brand strong{font-size:14px}.dir-rider .mobile-brand,.dir-rider .mobile-profile-link{min-height:44px;align-items:center}.dir-rider .mobile-profile-link{display:flex;gap:6px;padding:7px 4px 7px 10px;color:white;font-size:11px}.dir-rider .mobile-profile-link .icon{width:17px;height:17px}.dir-rider .lesson-main,.dir-rider .lessons-main,.dir-rider .profile-main{padding-top:20px}.dir-rider .lessons-main:before{display:none}.dir-rider .mobile-lessons-title{position:absolute;display:block;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%)}.dir-rider .recommended-card{display:grid;grid-template-columns:minmax(0,64%) minmax(0,36%);min-height:226px;margin-bottom:24px;overflow:hidden;border:0;border-top:3px solid var(--rule);border-bottom:1px solid var(--rule)}.dir-rider .recommended-copy{width:auto;min-width:0;min-height:222px;padding:17px 12px 18px 0}.dir-rider .recommended-title{gap:8px}.dir-rider .recommended-title>span{font-size:42px}.dir-rider .recommended-copy h2{font-size:17px}.dir-rider .recommended-copy p{font-size:11px;line-height:1.48}.dir-rider .recommended-image{position:relative;inset:auto;width:auto;min-width:0;min-height:222px;border-left:1px solid var(--rule)}.dir-rider .section-heading{padding-top:17px}.dir-rider .module-heading{padding:17px 0}.dir-rider .module-heading strong{font-size:17px}.dir-rider .lesson-row{grid-template-columns:36px minmax(0,1fr) 22px;gap:9px}.dir-rider .lesson-row,.dir-rider .lesson-row:hover:not(.is-locked){padding-right:0;padding-left:0}.dir-rider .lesson-row .status{max-width:100%;min-height:28px;margin-top:0;padding:4px 7px;font-size:11px;white-space:normal}.dir-rider .lesson-heading{min-height:auto;padding-bottom:18px}.dir-rider .lesson-title-lockup{gap:13px}.dir-rider .lesson-title-lockup>i{height:50px}.dir-rider .lesson-display-number{font-size:45px}.dir-rider .lesson-title-lockup h1{font-size:23px;line-height:1.02}.dir-rider .theory{max-width:none;padding-top:21px}.dir-rider .theory-lede p{font-size:14px;line-height:1.65}.dir-rider .theory h2{grid-template-columns:2.25ch minmax(0,1fr);gap:.4em;font-size:19px}.dir-rider .theory li,.dir-rider .theory-callout p,.dir-rider .theory>p{font-size:14px;line-height:1.68}.dir-rider .extra-practice,.dir-rider .practice-section{grid-template-columns:36px minmax(0,1fr);gap:10px}.dir-rider .practice-section{padding:19px 14px 21px}.dir-rider .extra-practice{padding:17px 0 19px}.dir-rider .practice-number{margin-top:20px;font-size:19px}.dir-rider .lesson-context,.dir-rider .page-lesson .lesson-context{display:flex;flex-direction:column;gap:16px;padding:12px 15px 38px;border-left:0}.dir-rider .homework-card{order:-1;margin-top:0}.dir-rider .context-section.attention{order:1}.dir-rider .context-section,.dir-rider .homework-card{padding:15px 0 0}.dir-rider .context-progress{min-height:auto;padding-top:15px;padding-bottom:0;border-top:4px solid var(--rule);border-bottom:0}.dir-rider .lesson-pagination-desktop{display:none}.dir-rider .page-lesson>.lesson-pagination-mobile{display:grid;width:auto;grid-template-columns:minmax(0,1fr);gap:10px;margin:0 15px 32px;padding-top:18px}.dir-rider .profile-lede{padding-bottom:17px}.dir-rider .mobile-profile-title{position:absolute;display:block;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%)}.dir-rider .identity-setting,.dir-rider .setting-section,.dir-rider .telegram-setting{gap:16px;padding:20px 0 22px}.dir-rider .page-profile .reminder-setting,.dir-rider .page-profile .routine-setting{grid-template-columns:minmax(0,1fr);gap:18px}.dir-rider .page-profile .reminder-controls,.dir-rider .page-profile .reminder-controls>label,.dir-rider .page-profile .routine-controls,.dir-rider .page-profile .switch-row{width:100%;min-width:0}.dir-rider .page-profile .reminder-controls{grid-template-columns:minmax(0,1fr)}.dir-rider .page-profile .switch-row{grid-column:1}.dir-rider .page-profile .profile-form input:not([type]),.dir-rider .page-profile .profile-form input[type=email],.dir-rider .page-profile .profile-form input[type=text],.dir-rider .page-profile .profile-form input[type=time],.dir-rider .page-profile .profile-form select{min-width:0;width:100%;font-size:16px}.dir-rider .identity-setting{grid-template-columns:72px minmax(0,1fr)}.dir-rider .identity-setting .profile-actions{grid-column:1/-1;justify-content:stretch}.dir-rider .profile-actions .primary-button,.dir-rider .profile-actions .secondary-button{flex:1 1 0}.dir-rider .profile-photo{width:68px;height:82px}.dir-rider .telegram-setting{grid-template-columns:42px minmax(0,1fr)}.dir-rider .profile-links{padding:0}.dir-rider .day-picker{min-width:0;gap:4px}.dir-rider .day-picker label{min-width:0}.dir-rider .day-picker label>span{min-width:0;min-height:48px;font-size:12px}.dir-rider .field-message{flex-wrap:wrap;gap:4px 14px}}@media (max-width:360px){.dir-rider .mobile-profile-link span{display:none}.dir-rider .recommended-card{grid-template-columns:minmax(0,68%) minmax(0,32%)}.dir-rider .recommended-copy .primary-button{width:100%;max-width:100%;white-space:normal}.dir-rider .status{white-space:normal}}.dir-rider{--accent:#E02D20;--direction-accent:#E02D20;--action:#E02D20;--status-accepted:#008A00;--status-none:#FFD700}.dir-rider .brand-glyph{color:#E53729}.dir-rider .map-lesson.active b{color:#FFFFFF}.dir-rider .map-lesson.active .map-status-label-none{color:var(--fg)}.dir-rider .lesson-part-list,.dir-rider .lesson-parts ol,.dir-rider .map-part-list{margin:0;padding:0;list-style:none}.dir-rider .lesson-part-list{padding:2px 2px 12px 50px;border-top:1px solid var(--soft-rule)}.dir-rider .lesson-part-list a,.dir-rider .lesson-part-list li>span{display:grid;min-height:44px;grid-template-columns:42px minmax(0,1fr);align-items:center;gap:10px;padding:6px 10px;border-left:1px solid var(--soft-rule)}.dir-rider .lesson-part-list a:hover{background:color-mix(in oklch,var(--fg) 5%,transparent)}.dir-rider .lesson-part-list span{color:var(--muted);font-size:11px;font-variant-numeric:tabular-nums}.dir-rider .lesson-part-list strong{font-size:12px;line-height:1.35}.dir-rider .lesson-part-list .is-locked{color:var(--muted);opacity:.68}.dir-rider .map-lesson.active-parent{color:white}.dir-rider .map-part-list{padding:2px 10px 8px 25px}.dir-rider .map-part{display:grid;min-height:44px;grid-template-columns:36px minmax(0,1fr);align-items:center;gap:9px;padding:6px 8px;border-left:1px solid color-mix(in oklch,white 24%,transparent);color:oklch(.72 .02 250);font-size:12px;line-height:1.35}.dir-rider .map-part b{color:oklch(.68 .02 250);font-size:10px;font-variant-numeric:tabular-nums}.dir-rider .map-part.active,.dir-rider .map-part:hover:not(.is-locked){background:color-mix(in oklch,white 10%,transparent);color:white}.dir-rider .map-part.active{border-left:3px solid var(--direction-accent);padding-left:6px}.dir-rider .map-part.active b{color:var(--direction-accent)}.dir-rider .map-part.is-locked{opacity:.55}.dir-rider .lesson-parts{width:min(100%,930px);margin:0 auto 24px;padding:20px;border:1px solid var(--rule);background:var(--surface)}.dir-rider .lesson-part-heading{margin-bottom:14px}.dir-rider .lesson-part-heading h2{margin:6px 0 0;font-size:clamp(24px,2.4vw,32px)}.dir-rider .lesson-parts ol{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid var(--soft-rule);border-left:1px solid var(--soft-rule)}.dir-rider .lesson-parts a{display:grid;min-height:64px;grid-template-columns:38px minmax(0,1fr);align-items:center;gap:10px;padding:10px 12px;border-right:1px solid var(--soft-rule);border-bottom:1px solid var(--soft-rule);color:var(--muted)}.dir-rider .lesson-parts a.active,.dir-rider .lesson-parts a:hover{background:var(--accent-soft);color:var(--fg)}.dir-rider .lesson-parts a.active{box-shadow:inset 3px 0 0 var(--direction-accent)}.dir-rider .lesson-parts a>span{font-size:12px;font-variant-numeric:tabular-nums}.dir-rider .lesson-parts a>strong{font-size:12px;line-height:1.35}.dir-rider .part-pagination{margin-top:24px}.dir-rider .extra-practice h3,.dir-rider .practice-number,.dir-rider .practice-section h2,.dir-rider .theory h2,.dir-rider .theory h2:before{color:#CF2418}.dir-rider .video-poster{aspect-ratio:auto}.dir-rider .video-poster:after{content:none}.dir-rider .help-setting .profile-form{width:100%;margin:0}.dir-rider .help-setting textarea{display:block;width:100%;min-width:0;min-height:120px;padding:10px;border:2px solid var(--rule);border-radius:0;background:transparent;color:var(--fg);font:inherit;resize:vertical}@media (max-width:360px){.dir-rider .mobile-profile-link{min-width:44px;justify-content:center;padding-right:0;padding-left:0}}@media (max-width:820px){.dir-rider .lesson-parts{margin-bottom:18px;padding:15px 0 0;border-right:0;border-left:0}.dir-rider .lesson-part-heading{padding:0 2px}.dir-rider .lesson-parts ol{grid-template-columns:minmax(0,1fr)}.dir-rider .lesson-parts a{min-height:54px}.dir-rider .part-pagination{grid-template-columns:minmax(0,1fr)}.dir-rider .part-pagination>[aria-hidden=true]{display:none}.dir-rider .part-pagination .is-next{grid-column:1}.dir-rider .lesson-part-list{padding-left:36px}}