@import "https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=DM+Sans:wght@400;500;600;700&family=Playfair+Display:ital,wght@0,500;0,600;1,500;1,600&display=swap";:root{color:#292725;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;--bg:#f6f4f0;--surface:#fcfbf8;--surface-raised:#fffefa;--ink:#292725;--muted:#807a74;--faint:#a8a29b;--border:#e8e4dd;--border-strong:#dad5cc;--accent:#783f4b;--accent-soft:#f0e7e8;--graphite:#292725;--sidebar:#292725;--sidebar-text:#c7c1ba;--sidebar-muted:#817c76;--olive:#e9ebdf;--warm:#f1e9df;--shadow:0 12px 35px #27211c0e;--sans:"DM Sans", "Segoe UI", sans-serif;--serif:"Playfair Display", Georgia, serif;--mono:"DM Mono", Consolas, monospace;font-synthesis:none;background:#f6f4f0;font-family:DM Sans,Segoe UI,sans-serif}:root[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#1c1b1a;--surface:#232220;--surface-raised:#292725;--ink:#e9e4dc;--muted:#aaa39a;--faint:#817a72;--border:#393633;--border-strong:#4a4540;--accent:#c0838c;--accent-soft:#392c2e;--graphite:#181716;--sidebar:#171615;--sidebar-text:#c7c1ba;--sidebar-muted:#817c76;--olive:#303127;--warm:#332e29;--shadow:0 12px 35px #0000002e}*{box-sizing:border-box}body{background:var(--bg);min-width:360px;min-height:100vh;color:var(--ink);margin:0}button,a{font:inherit}button{color:inherit}button:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:3px}::selection{color:#fff;background:var(--accent)}#root{min-height:100vh}.app-shell{background:var(--bg);min-height:100vh}.sidebar{z-index:20;width:252px;color:var(--sidebar-text);background:var(--sidebar);flex-direction:column;padding:27px 16px 15px;transition:width .24s,transform .24s;display:flex;position:fixed;inset:0 auto 0 0}.brand{color:#f7f3ed;align-items:center;gap:11px;height:38px;padding:0 9px;text-decoration:none;display:flex}.brand-mark{color:#fff8f3;width:34px;height:34px;font:600 22px/1 var(--serif);background:#79404c;border-radius:4px;place-items:center;display:grid}.brand-name{letter-spacing:.14em;font-size:15px;font-weight:700;line-height:1.1}.brand-period{color:#c5868d}.brand-name small{color:#827a73;font:8px/1.6 var(--mono);letter-spacing:.12em;display:block}.workspace-select{text-align:left;width:100%;color:var(--sidebar-text);cursor:pointer;background:#302e2b;border:1px solid #3d3935;border-radius:5px;align-items:center;gap:10px;margin-top:34px;padding:10px 9px;display:flex}.workspace-glyph{color:#eadbce;width:29px;height:29px;font:16px var(--serif);background:#665043;border-radius:4px;place-items:center;display:grid}.workspace-copy,.profile-copy{flex:1;gap:2px;min-width:0;display:grid}.workspace-copy strong,.profile-copy strong{color:#e7e1da;font-size:11px;font-weight:600}.workspace-copy small,.profile-copy small{color:#969089;font-size:10px}.workspace-select>svg{color:#817a73}.sidebar-nav{flex-direction:column;gap:26px;padding-top:29px;display:flex}.nav-group{flex-direction:column;gap:3px;display:flex}.nav-heading{color:var(--sidebar-muted);font:9px/1.4 var(--mono);letter-spacing:.1em;margin:0 0 7px 10px}.nav-link{color:#a9a39b;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:4px;align-items:center;gap:12px;width:100%;height:38px;padding:0 11px;font-size:12px;transition:color .16s,background .16s;display:flex;position:relative}.nav-link:hover{color:#eee7df;background:#34312e}.nav-link.active{color:#fff9f3;background:#3b3532}.nav-link.active>svg{color:#ca8b91}.active-mark{background:#b6717c;border-radius:0 2px 2px 0;width:2px;height:23px;position:absolute;left:-16px}.sidebar-bottom{margin-top:auto}.sidebar-note{border-top:1px solid #3d3935;border-bottom:1px solid #3d3935;gap:10px;margin:0 1px 11px;padding:13px 10px;display:flex}.note-icon{color:#bd8385;padding-top:1px}.sidebar-note p{gap:4px;margin:0;display:grid}.sidebar-note strong{color:#d9d2ca;font-size:11px;font-weight:500}.sidebar-note small{color:#8f8982;font-size:10px}.profile-button{text-align:left;cursor:pointer;background:0 0;border:0;align-items:center;gap:10px;width:100%;padding:9px 7px;display:flex}.profile-button>svg{color:#817a73}.profile-monogram{color:#ece4d8;width:30px;height:30px;font:14px var(--serif);background:#60584e;border-radius:50%;place-items:center;display:grid}.main-column{min-height:100vh;margin-left:252px;transition:margin-left .24s}.topbar{z-index:10;border-bottom:1px solid var(--border);background:color-mix(in srgb, var(--surface) 94%, transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);justify-content:space-between;align-items:center;height:62px;padding:0 42px;display:flex;position:sticky;top:0}.topbar-start,.topbar-actions{align-items:center;gap:14px;display:flex}.breadcrumb{color:var(--faint);font-size:11px}.breadcrumb span{color:var(--border-strong);margin:0 8px}.breadcrumb strong{color:var(--muted);font-weight:500}.icon-button{width:32px;height:32px;color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:4px;place-items:center;padding:0;transition:background .15s,color .15s;display:grid}.icon-button:hover{color:var(--ink);background:var(--bg)}.collapse-button{color:var(--faint)}.topbar-divider{background:var(--border);width:1px;height:20px}.search-button{border:1px solid var(--border);color:var(--muted);background:var(--surface-raised);cursor:pointer;border-radius:4px;align-items:center;gap:8px;padding:7px 9px;font-size:11px;display:flex}.search-button:hover{border-color:var(--border-strong);color:var(--ink)}.search-button kbd{border:1px solid var(--border);color:var(--faint);font:9px var(--mono);border-radius:3px;margin-left:8px;padding:1px 5px}.content-area{max-width:1390px;min-height:calc(100vh - 62px);margin:0 auto;padding:37px 42px 20px}.dashboard-page{animation:.38s both arrive;position:relative}@keyframes arrive{0%{opacity:.35;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}.welcome-panel{border:1px solid var(--border);background:var(--surface);align-items:center;min-height:300px;padding:38px 45px;display:flex;position:relative;overflow:hidden}.welcome-copy{z-index:2;max-width:500px;position:relative}.eyebrow{color:var(--accent);font:9px/1.4 var(--mono);letter-spacing:.08em;align-items:center;gap:8px;display:inline-flex}.eyebrow-line{background:var(--accent);width:18px;height:1px;display:inline-block}.welcome-copy h1,.page-intro h1{color:var(--ink);font:500 clamp(35px, 4vw, 47px)/1.14 var(--serif);letter-spacing:-.035em;margin:18px 0 12px}.welcome-copy h1 em,.section-heading h2 em{color:var(--accent);font-weight:500}.welcome-copy p{color:var(--muted);font-size:12px;line-height:1.8}.button-primary,.button-secondary{border:1px solid var(--accent);background:var(--accent);color:#fff8f3;cursor:pointer;border-radius:3px;justify-content:center;align-items:center;gap:10px;margin-top:22px;padding:11px 14px;font-size:11px;transition:transform .16s,background .16s;display:inline-flex}.button-primary:hover{background:#65343e;transform:translateY(-1px)}.button-secondary{color:var(--accent);background:0 0}.button-secondary:hover{background:var(--accent-soft)}.welcome-art{opacity:.95;width:260px;height:260px;position:absolute;top:50%;right:12%;transform:translateY(-50%)}.orbit{border:1px solid var(--border);border-radius:50%;position:absolute;inset:12px}.orbit-one{border-color:#d9c8c7;transform:rotate(30deg)scaleX(.75)}.orbit-two{border-color:#dedbd2;transform:rotate(-36deg)scaleX(.75)}.orbit-three{border-color:var(--border-strong);inset:43px}.art-center{color:var(--accent);background:var(--accent-soft);border-radius:50%;flex-direction:column;justify-content:center;align-items:center;display:flex;position:absolute;inset:79px}.art-center span{font:500 49px/.95 var(--serif)}.art-center small{color:var(--muted);font:7px/1.45 var(--mono);letter-spacing:.1em;text-align:center;margin-top:9px}.orbit-dot{border:2px solid var(--surface);background:#9a6b70;border-radius:50%;width:8px;height:8px;position:absolute;box-shadow:0 0 0 1px #9a6b70}.dot-one{top:30px;right:59px}.dot-two{background:#998a67;top:121px;left:34px;box-shadow:0 0 0 1px #998a67}.dot-three{background:#82876e;bottom:46px;right:47px;box-shadow:0 0 0 1px #82876e}.art-caption{color:var(--faint);font:8px var(--mono);letter-spacing:.06em;align-items:center;gap:5px;display:flex;position:absolute;bottom:24px;right:-32px}.welcome-index{color:var(--faint);font:9px var(--mono);position:absolute;bottom:14px;right:18px}.welcome-index span{color:var(--border-strong)}.section-block{margin-top:38px}.section-heading{justify-content:space-between;align-items:end;gap:15px;margin-bottom:17px;display:flex}.section-heading h2{color:var(--ink);font:500 23px/1.2 var(--serif);letter-spacing:-.02em;margin:7px 0 0}.section-heading .eyebrow{color:var(--faint);font-size:8px}.text-link,.card-link{color:var(--accent);cursor:pointer;white-space:nowrap;background:0 0;border:0;align-items:center;gap:8px;padding:4px 0;font-size:10px;display:inline-flex}.text-link:hover,.card-link:hover{text-underline-offset:3px;text-decoration:underline}.path-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:13px;display:grid}.path-card{border:1px solid var(--border);background:var(--surface);min-height:230px;padding:17px 18px;transition:transform .18s,box-shadow .18s;position:relative;overflow:hidden}.path-card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}.path-card-featured{background:color-mix(in srgb, var(--accent-soft) 52%, var(--surface))}.card-topline{z-index:1;justify-content:space-between;align-items:center;display:flex;position:relative}.card-icon{width:34px;height:34px;color:var(--accent);background:var(--accent-soft);border-radius:4px;place-items:center;display:grid}.card-icon.warm{color:#886349;background:var(--warm)}.card-icon.olive{color:#6c7654;background:var(--olive)}.card-icon.blue{color:#5c7180;background:#e5ecec}.card-index{color:var(--faint);font:8px var(--mono);letter-spacing:.05em}.path-card-content{z-index:1;margin-top:16px;position:relative}.card-category{color:var(--faint);font:8px var(--mono);letter-spacing:.06em}.path-card h3{color:var(--ink);font:500 20px/1.16 var(--serif);margin:6px 0 7px}.path-card p,.project-description p{max-width:250px;color:var(--muted);margin:0;font-size:10px;line-height:1.6}.card-link{margin-top:13px;font-size:9px}.card-decoration{color:var(--accent);opacity:.07;position:absolute;bottom:10px;right:12px}.code-decoration{font:45px var(--mono);bottom:10px;right:15px}.gear-decoration{bottom:15px;right:13px;transform:rotate(-28deg)}.art-decoration{gap:5px;display:flex;bottom:24px;right:21px;transform:rotate(30deg)}.art-decoration span{border:1px solid #75815e;border-radius:50%;width:16px;height:64px}.art-decoration span:nth-child(2){transform:translateY(-7px)}.discovery-row{grid-template-columns:1.25fr 1fr;gap:32px;margin-top:37px;display:grid}.discovery-row .section-heading{min-height:48px}.project-feature{border:1px solid var(--border);background:var(--surface);grid-template-columns:44% 1fr;min-height:169px;display:grid}.project-art{background:#e9e4d9;min-height:169px;position:relative;overflow:hidden}:root[data-theme=dark] .project-art{background:#332f2b}.project-ring{border:1px solid #c2b8a5;border-radius:50%;width:139px;height:139px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.ring-b{border-color:#a38f7d;width:102px;height:102px}.ring-c{border-color:#9b6b70;width:59px;height:59px}.project-figure{color:#f7f2e8;width:31px;height:31px;font:9px var(--mono);background:#7d4c50;border-radius:50%;place-items:center;display:grid;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.project-art-label{color:#857d72;font:7px/1.6 var(--mono);letter-spacing:.08em;text-align:right;position:absolute;bottom:10px;right:12px}.project-description{align-self:center;padding:16px 17px}.project-description h3{color:var(--ink);font:500 20px/1.15 var(--serif);margin:7px 0 6px}.project-description p{font-size:9px}.continue-panel{min-width:0}.empty-learning{border:1px dashed var(--border-strong);background:color-mix(in srgb, var(--surface) 60%, transparent);flex-direction:column;justify-content:center;align-items:flex-start;min-height:169px;padding:19px 20px;display:flex}.empty-icon{border:1px solid var(--border);width:37px;height:37px;color:var(--accent);background:var(--surface);border-radius:50%;place-items:center;display:grid}.empty-title{color:var(--ink);font:500 15px var(--serif);margin:11px 0 4px}.empty-copy{max-width:280px;color:var(--muted);font-size:10px;line-height:1.6}.empty-learning .text-link{margin-top:7px}.closing-note{color:var(--muted);align-items:center;gap:11px;margin:35px 0 10px;display:flex}.closing-mark{color:#b98d8d;font:30px/.5 var(--serif)}.closing-note p{font:italic 12px var(--serif)}.closing-rule{background:var(--border);flex:1;height:1px;margin-left:9px}.bookmark-fab{color:var(--faint);cursor:pointer;background:0 0;border:0;align-items:center;gap:6px;font-size:9px;display:flex;position:absolute;bottom:0;right:0}.bookmark-fab:hover{color:var(--accent)}.page-footer{color:var(--faint);font:8px var(--mono);letter-spacing:.035em;justify-content:space-between;padding:24px 0 3px;display:flex}.page-footer i{color:var(--accent);font-style:normal}.section-page{max-width:950px;min-height:calc(100vh - 154px);padding-top:26px;animation:.35s both arrive}.page-intro{border-bottom:1px solid var(--border);padding:17px 0 29px;position:relative}.page-intro h1{margin:13px 0 8px;font-size:42px}.title-period{color:var(--accent)}.page-intro>p{color:var(--muted);font-size:12px}.intro-icon{border:1px solid var(--border);width:54px;height:54px;color:var(--accent);background:var(--surface);border-radius:50%;place-items:center;display:grid;position:absolute;bottom:23px;right:17px}.empty-state{border:1px solid var(--border);background:var(--surface);max-width:480px;box-shadow:var(--shadow);flex-direction:column;align-items:flex-start;margin:74px auto 0;padding:30px;display:flex}.empty-state h2{font:500 24px var(--serif);margin:19px 0 8px}.empty-state p{color:var(--muted);font-size:12px;line-height:1.7}.empty-state .button-secondary{margin-top:20px}.field-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;margin-top:30px;display:grid}.field-card{border:1px solid var(--border);background:var(--surface);text-align:left;cursor:pointer;align-items:center;gap:13px;min-height:86px;padding:15px;transition:transform .16s,border-color .16s;display:flex}.field-card:hover{border-color:var(--border-strong);transform:translateY(-2px)}.field-card>span:nth-child(2){flex:1;gap:5px;display:grid}.field-card strong{color:var(--ink);font:500 15px var(--serif)}.field-card small{color:var(--muted);font-size:10px}.field-card>svg{color:var(--faint)}.settings-card{border:1px solid var(--border);background:var(--surface);margin-top:30px}.setting-row{border-bottom:1px solid var(--border);align-items:center;gap:14px;min-height:82px;padding:15px 19px;display:flex}.setting-row:last-child{border-bottom:0}.setting-icon{width:35px;height:35px;color:var(--accent);background:var(--accent-soft);place-items:center;display:grid}.setting-row>div:nth-child(2){flex:1}.setting-row strong{font-size:12px;font-weight:500}.setting-row p{color:var(--muted);margin-top:4px;font-size:10px}.setting-note{color:var(--faint);font-size:10px}.settings-footnote{color:var(--faint);margin-top:13px;font-size:10px}.switch{background:var(--border-strong);cursor:pointer;border:0;border-radius:20px;width:38px;height:22px;padding:3px;transition:background .2s}.switch span{background:var(--surface-raised);border-radius:50%;width:16px;height:16px;transition:transform .2s;display:block}.switch.on{background:var(--accent)}.switch.on span{transform:translate(16px)}.saved-card{border:1px solid var(--border);background:var(--surface);align-items:center;gap:15px;margin-top:30px;padding:20px;display:flex}.saved-card-mark{width:46px;height:46px;color:var(--accent);background:var(--accent-soft);place-items:center;display:grid}.saved-card>div:nth-child(2){flex:1}.saved-card h3{font:500 19px var(--serif);margin:5px 0}.saved-card p{color:var(--muted);font-size:10px}.saved-card .button-primary{margin:0}.mobile-menu,.mobile-scrim{display:none}.roadmap-card{background:color-mix(in srgb, var(--surface) 74%, var(--bg))}.roadmap-card h3{font-size:18px}.roadmap-card .path-card-content{max-width:245px}.roadmap-card p{min-height:32px}.planned-label{border:1px solid var(--border-strong);color:var(--faint);font:8px var(--mono);letter-spacing:.07em;margin-top:12px;padding:4px 6px;display:inline-flex}.continuing-card{border:1px solid var(--border);background:var(--surface);min-height:169px;padding:18px 20px}.continuing-card h3{max-width:360px;font:500 17px/1.35 var(--serif);margin:8px 0 12px}.progress-track{background:var(--border);height:4px;overflow:hidden}.progress-track span{background:var(--accent);height:100%;transition:width .25s;display:block}.continue-progress-label{color:var(--muted);align-items:center;gap:6px;margin-top:9px;font-size:9px;display:flex}.continue-progress-label svg{color:#71845c}.continue-next-label{color:var(--faint);margin-top:7px;font-size:9px}.continuing-card .text-link{margin-top:6px}.sidebar-collapsed .sidebar{width:72px;padding-inline:11px}.sidebar-collapsed .brand{justify-content:center;padding:0}.sidebar-collapsed .brand-name,.sidebar-collapsed .workspace-copy,.sidebar-collapsed .workspace-select>svg,.sidebar-collapsed .nav-link span,.sidebar-collapsed .nav-heading,.sidebar-collapsed .sidebar-note,.sidebar-collapsed .profile-copy,.sidebar-collapsed .profile-button>svg{display:none}.sidebar-collapsed .workspace-select{justify-content:center;margin-top:34px;padding:8px 0}.sidebar-collapsed .nav-group{gap:7px}.sidebar-collapsed .nav-link{justify-content:center;padding:0}.sidebar-collapsed .nav-link>svg{width:18px;height:18px}.sidebar-collapsed .active-mark{left:-11px}.sidebar-collapsed .profile-button{justify-content:center;padding:9px 0}.sidebar-collapsed .main-column{margin-left:72px}@media (width>=1500px){.content-area{padding-inline:56px}}@media (width<=1100px){.sidebar{width:220px}.main-column{margin-left:220px}.topbar{padding-inline:28px}.content-area{padding:28px}.welcome-art{right:7%;transform:translateY(-50%)scale(.88)}.path-card{padding:14px}.discovery-row{gap:21px}}@media (width<=850px){.path-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.path-card:last-child{display:none}.discovery-row{grid-template-columns:1fr;gap:28px}.welcome-art{opacity:.58;right:3%}.welcome-copy{max-width:430px}.welcome-panel{min-height:280px;padding-inline:32px}}@media (width<=650px){.sidebar{width:270px;box-shadow:var(--shadow);transform:translate(-100%)}.sidebar.mobile-open{transform:translate(0)}.mobile-scrim{z-index:19;background:#14121061;border:0;display:block;position:fixed;inset:0}.main-column,.sidebar-collapsed .main-column{margin-left:0}.sidebar-collapsed .sidebar{width:270px;padding:27px 16px 15px}.sidebar-collapsed .sidebar.mobile-open .brand{justify-content:flex-start;padding:0 9px}.sidebar-collapsed .sidebar.mobile-open .brand-name,.sidebar-collapsed .sidebar.mobile-open .workspace-copy,.sidebar-collapsed .sidebar.mobile-open .workspace-select>svg,.sidebar-collapsed .sidebar.mobile-open .nav-link span,.sidebar-collapsed .sidebar.mobile-open .nav-heading,.sidebar-collapsed .sidebar.mobile-open .sidebar-note,.sidebar-collapsed .sidebar.mobile-open .profile-copy,.sidebar-collapsed .sidebar.mobile-open .profile-button>svg{display:initial}.sidebar-collapsed .sidebar.mobile-open .brand-mark{display:grid}.sidebar-collapsed .sidebar.mobile-open .workspace-select{justify-content:flex-start;padding:10px 9px}.sidebar-collapsed .sidebar.mobile-open .nav-link{justify-content:flex-start;padding:0 11px}.sidebar-collapsed .sidebar.mobile-open .active-mark{left:-16px}.sidebar-collapsed .sidebar.mobile-open .profile-button{justify-content:flex-start;padding:9px 7px}.topbar{height:56px;padding-inline:15px}.mobile-menu{display:grid}.collapse-button,.topbar-divider{display:none}.topbar-start,.topbar-actions{gap:8px}.breadcrumb{font-size:10px}.breadcrumb span{margin-inline:4px}.search-button{padding:7px}.search-button kbd{display:none}.content-area{padding:20px 15px 18px}.welcome-panel{align-items:flex-start;min-height:318px;padding:30px 23px}.welcome-copy{max-width:100%}.welcome-copy h1{font-size:38px}.welcome-copy p{max-width:260px}.welcome-art{opacity:.24;top:65%;right:-86px;transform:translateY(-50%)scale(.78)}.welcome-index{bottom:10px;right:11px}.section-block{margin-top:29px}.section-heading h2{font-size:21px}.section-heading{align-items:flex-end}.section-heading .text-link{font-size:9px}.path-grid{grid-template-columns:1fr}.path-card{min-height:215px}.path-card:last-child{display:block}.path-card h3{font-size:21px}.discovery-row{margin-top:30px}.discovery-row .section-heading{align-items:end}.project-feature{grid-template-columns:39% 1fr}.project-art{min-height:175px}.project-description{padding:12px}.project-description h3{font-size:18px}.project-description p{font-size:9px}.closing-note{margin-top:26px}.closing-note p{font-size:11px}.bookmark-fab{bottom:-22px}.page-footer{padding-top:28px}.section-page{min-height:calc(100vh - 133px);padding-top:12px}.page-intro h1{font-size:36px}.page-intro>p{max-width:85%;line-height:1.6}.intro-icon{width:43px;height:43px;right:2px}.field-grid{grid-template-columns:1fr;gap:9px;margin-top:22px}.empty-state{margin-top:42px;padding:23px}.setting-row{gap:10px;padding-inline:12px}.setting-note{display:none}.saved-card{flex-wrap:wrap;align-items:flex-start}.saved-card .button-primary{margin-left:60px}.page-footer{font-size:7px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}.learning-page{max-width:1000px;padding-top:8px}.learning-intro{padding-top:10px}.learning-intro h1{max-width:820px;font-size:clamp(31px,4vw,43px);line-height:1.13}.learning-intro>p{max-width:680px;line-height:1.7}.learning-intro .learning-meta{color:var(--faint);flex-wrap:wrap;gap:16px;margin-top:18px;font-size:10px;display:flex}.learning-meta span{align-items:center;gap:6px;display:inline-flex}.learning-meta svg{color:var(--accent)}.storage-message{color:var(--muted);background:var(--warm);border-left:2px solid #a07854;margin:15px 0;padding:10px 13px;font-size:11px;line-height:1.6}.path-overview{padding:23px 0 15px}.overview-grid{grid-template-columns:1fr 1fr;gap:13px;display:grid}.overview-card{border:1px solid var(--border);background:var(--surface);padding:20px}.overview-card h2,.overview-section-heading h2{color:var(--ink);font:500 20px/1.3 var(--serif);margin:9px 0}.overview-card>p{color:var(--muted);margin:0;font-size:11px;line-height:1.75}.prerequisite-list{border-top:1px solid var(--border);gap:8px;margin-top:19px;padding-top:13px;display:grid}.prerequisite-list>strong,.summary-columns strong{margin-bottom:2px;font-size:10px;font-weight:600}.prerequisite-list span{color:var(--muted);align-items:center;gap:7px;font-size:10px;display:flex}.prerequisite-list svg{color:var(--accent)}.objective-list{color:var(--muted);gap:8px;margin:13px 0 0;padding-left:17px;font-size:10px;line-height:1.55;display:grid}.objective-list li::marker{color:var(--accent)}.overview-modules{margin-top:28px}.overview-section-heading{justify-content:space-between;align-items:end;gap:15px;margin-bottom:11px;display:flex}.overview-section-heading h2{margin-bottom:0}.module-count{color:var(--faint);font:9px var(--mono)}.module-lesson-preview{border:1px solid var(--border);background:var(--surface);border-bottom:0;grid-template-columns:34px 1fr auto;align-items:center;gap:11px;padding:12px 14px;display:grid}.module-lesson-preview:last-child{border-bottom:1px solid var(--border)}.lesson-number{color:var(--accent);font:10px var(--mono)}.module-lesson-preview strong{color:var(--ink);font:500 14px var(--serif)}.module-lesson-preview p{color:var(--muted);margin-top:4px;font-size:9px;line-height:1.45}.lesson-duration{color:var(--faint);white-space:nowrap;align-items:center;gap:5px;font-size:9px;display:inline-flex}.project-brief{border:1px solid var(--border);background:color-mix(in srgb, var(--surface) 88%, var(--warm));margin-top:24px;padding:19px}.project-brief h3{font:500 20px var(--serif);margin:8px 0 6px}.project-brief>p{max-width:760px;color:var(--muted);font-size:10px;line-height:1.7}.dataset-wrap{margin-top:15px;overflow-x:auto}.dataset-wrap table{border-collapse:collapse;text-align:left;width:100%;font-size:10px}.dataset-wrap caption{color:var(--faint);font:8px var(--mono);letter-spacing:.07em;text-align:left;text-transform:uppercase;margin-bottom:7px}.dataset-wrap th,.dataset-wrap td{border-bottom:1px solid var(--border);white-space:nowrap;padding:8px 9px}.dataset-wrap thead th{color:var(--faint);font:8px var(--mono)}.dataset-wrap tbody th{font-weight:500}.dataset-wrap tbody td{color:var(--muted)}.project-milestones{grid-template-columns:repeat(3,1fr);gap:11px;margin-top:15px;display:grid}.project-milestones>div{border-top:1px solid var(--border-strong);padding-top:10px}.project-milestones span{color:var(--accent);font:9px var(--mono);margin-bottom:5px;display:block}.project-milestones strong{font-size:10px;font-weight:600}.project-milestones p{color:var(--muted);margin-top:4px;font-size:9px;line-height:1.55}.overview-footer{border:1px solid var(--border);background:var(--surface);justify-content:space-between;align-items:center;gap:20px;margin-top:18px;padding:15px 17px;display:flex}.overview-footer p{max-width:610px;color:var(--muted);font-size:10px;line-height:1.6}.overview-footer .button-primary{flex:none;margin:0}.reference-list{gap:0;margin-top:24px;display:grid}.reference-list>.eyebrow{color:var(--faint);margin-bottom:7px}.reference-list a{border-bottom:1px solid var(--border);color:var(--accent);justify-content:space-between;align-items:center;gap:15px;padding:10px 2px;text-decoration:none;display:flex}.reference-list a>span{gap:3px;display:grid}.reference-list a strong{font-size:10px;font-weight:500}.reference-list a small{color:var(--faint);font-size:9px}.reference-list a:hover strong{text-underline-offset:2px;text-decoration:underline}.lesson-layout{grid-template-columns:208px minmax(0,1fr);align-items:start;gap:28px;padding-top:22px;display:grid}.lesson-outline{gap:4px;display:grid;position:sticky;top:82px}.outline-back{color:var(--accent);text-align:left;cursor:pointer;background:0 0;border:0;align-items:center;gap:7px;margin:0 0 18px;padding:7px 0;font-size:10px;display:flex}.outline-title{color:var(--faint);font:8px var(--mono);letter-spacing:.1em;margin:0 0 6px 2px}.outline-item{color:var(--muted);text-align:left;cursor:pointer;background:0 0;border:0;border-radius:3px;align-items:flex-start;gap:8px;padding:9px 7px;display:flex}.outline-item:hover,.outline-item.current{background:var(--surface)}.outline-item.current{box-shadow:inset 2px 0 var(--accent);color:var(--ink)}.outline-check{color:var(--faint);padding-top:2px}.outline-item:has(svg.lucide-circle-check-big) .outline-check{color:var(--accent)}.outline-item>span:last-child{gap:4px;display:grid}.outline-item small{color:var(--faint);font:7px var(--mono);letter-spacing:.04em}.outline-item strong{font-size:9px;font-weight:500;line-height:1.45}.lesson-content{min-width:0;max-width:760px;padding:0 0 35px}.lesson-kicker{color:var(--faint);font:8px var(--mono);letter-spacing:.06em;flex-wrap:wrap;align-items:center;gap:14px;display:flex}.lesson-kicker>span{align-items:center;gap:5px;display:inline-flex}.completed-badge{color:#657653}.lesson-content>h2{font:500 31px/1.2 var(--serif);letter-spacing:-.02em;margin:12px 0 7px}.lesson-objective{color:var(--accent);margin-bottom:19px;font-size:11px;line-height:1.6}.lesson-paragraph{color:var(--muted);margin-top:12px;font-size:12px;line-height:1.85}.example-card{border:1px solid var(--border);background:var(--surface);margin-top:21px}.example-heading{border-bottom:1px solid var(--border);gap:5px;padding:11px 13px;display:grid}.example-heading span{color:var(--faint);font:8px var(--mono);letter-spacing:.08em}.example-heading strong{font:500 13px var(--serif)}.example-card pre{color:var(--ink);background:color-mix(in srgb, var(--surface) 75%, var(--bg));font:11px/1.7 var(--mono);tab-size:4;margin:0;padding:15px;overflow-x:auto}.example-card code{font:inherit}.example-card>p{border-top:1px solid var(--border);color:var(--muted);padding:10px 13px;font-size:10px;line-height:1.6}.mistake-card{background:var(--warm);border-left:2px solid #ad8e62;margin-top:12px;padding:12px 14px}.mistake-label{color:#8c714d;font:8px var(--mono);letter-spacing:.08em}.mistake-card p{color:var(--muted);margin-top:5px;font-size:10px;line-height:1.65}.exercise-card{border:1px solid var(--border);background:var(--surface);margin-top:18px;padding:15px}.exercise-card>p{color:var(--ink);margin-top:8px;font-size:11px;line-height:1.7}.hint-toggle{color:var(--accent);cursor:pointer;background:0 0;border:0;align-items:center;gap:6px;margin-top:9px;padding:4px 0;font-size:10px;display:inline-flex}.hint-list{color:var(--muted);background:var(--bg);gap:5px;margin:8px 0 0;padding:10px 12px;font-size:10px;line-height:1.55;list-style:none;display:grid}.project-brief.compact{margin-top:17px;padding:14px}.project-brief.compact h3{font-size:17px}.project-brief.compact .dataset-wrap th,.project-brief.compact .dataset-wrap td{padding:6px;font-size:9px}.assessment-card{border:1px solid var(--border-strong);background:var(--surface);margin-top:20px;padding:17px}.assessment-card h3{font:500 20px var(--serif);margin:7px 0 5px}.assessment-intro{color:var(--muted);font-size:10px;line-height:1.5}.question-block{border:0;border-top:1px solid var(--border);min-width:0;margin:17px 0 0;padding:14px 0 0}.question-block legend{width:100%;color:var(--ink);align-items:flex-start;gap:9px;font-size:11px;font-weight:500;line-height:1.6;display:flex}.question-block legend>span{color:var(--accent);font:9px var(--mono);padding-top:2px}.answer-options{gap:6px;margin-top:10px;display:grid}.answer-option{border:1px solid var(--border);color:var(--muted);background:var(--surface-raised);cursor:pointer;align-items:flex-start;gap:9px;padding:9px 10px;font-size:10px;line-height:1.5;display:flex}.answer-option:hover{border-color:var(--border-strong)}.answer-option input{opacity:0;width:1px;height:1px;position:absolute}.custom-radio{border:1px solid var(--border-strong);border-radius:50%;flex:0 0 13px;width:13px;height:13px;margin-top:1px}.answer-option input:checked+.custom-radio{border:4px solid var(--accent)}.answer-option:has(input:focus-visible){outline:2px solid var(--accent);outline-offset:2px}.answer-option.correct{border-color:#8a9a76}.answer-option.incorrect{border-color:#ba8c88}.answer-feedback{color:var(--muted);background:var(--bg);margin-top:8px;padding:9px 10px;font-size:9px;line-height:1.65}.answer-feedback strong{color:var(--ink);margin-bottom:2px;font-size:10px;display:block}.answer-feedback.is-correct{border-left:2px solid #74875e}.answer-feedback.is-incorrect{border-left:2px solid #a66e69}.completion-criteria{background:var(--accent-soft);margin-top:14px;padding:11px 13px}.completion-criteria strong{color:var(--accent);font-size:9px}.completion-criteria p{color:var(--muted);margin-top:5px;font-size:9px;line-height:1.6}.completion-prompt{color:var(--faint);margin-top:13px;font-size:10px}.lesson-next-row{border:1px solid var(--border);background:var(--surface);justify-content:space-between;align-items:center;gap:12px;margin-top:13px;padding:12px;display:flex}.lesson-next-row>p{color:var(--muted);align-items:center;gap:7px;font-size:10px;display:flex}.lesson-next-row>p svg{color:#71845c}.lesson-next-row .button-primary{flex:none;margin:0}.lesson-content .reference-list{margin-top:25px}.reset-progress{color:var(--faint);cursor:pointer;background:0 0;border:0;align-items:center;gap:7px;margin-top:17px;padding:6px 0;font-size:9px;display:inline-flex}.reset-progress:hover{color:#a36261}.learning-error{color:var(--muted);margin-top:35px}.completion-summary{border:1px solid var(--border);background:var(--surface);max-width:780px;box-shadow:var(--shadow);margin:35px auto 0;padding:27px}.completion-seal{color:#667a53;background:var(--olive);border-radius:50%;place-items:center;width:48px;height:48px;margin-bottom:16px;display:grid}.completion-summary h2{font:500 26px var(--serif);margin:9px 0}.completion-summary>p{max-width:650px;color:var(--muted);font-size:11px;line-height:1.7}.summary-columns{border-top:1px solid var(--border);grid-template-columns:1fr 1fr;gap:25px;margin-top:23px;padding-top:18px;display:grid}.summary-columns>div{flex-direction:column;align-items:flex-start;gap:8px;display:flex}.summary-columns ul{color:var(--muted);gap:7px;margin:0;padding-left:15px;font-size:10px;line-height:1.5;display:grid}.summary-columns li::marker{color:var(--accent)}.summary-columns p{color:var(--muted);font-size:10px;line-height:1.65}.summary-columns a{color:var(--accent);align-items:center;gap:5px;font-size:10px;text-decoration:none;display:inline-flex}.summary-columns a:hover{text-decoration:underline}.library-path-card{border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow);grid-template-columns:72px 1fr;gap:19px;margin-top:26px;padding:22px;display:grid}.library-path-symbol{width:56px;height:56px;color:var(--accent);background:var(--accent-soft);place-items:center;display:grid}.library-path-meta{color:var(--faint);font:8px var(--mono);letter-spacing:.04em;flex-wrap:wrap;gap:13px;display:flex}.library-path-meta span{align-items:center;gap:5px;display:inline-flex}.library-path-meta span:first-child{color:var(--accent)}.library-path-content h2{color:var(--ink);font:500 22px/1.3 var(--serif);margin:9px 0 6px}.library-path-content>p{color:var(--muted);font-size:10px;line-height:1.65}.library-objectives{gap:6px;margin-top:13px;display:grid}.library-objectives strong{margin-bottom:1px;font-size:9px}.library-objectives span{color:var(--muted);align-items:flex-start;gap:7px;font-size:9px;line-height:1.5;display:flex}.library-objectives svg{color:var(--accent);flex:none}.library-path-content .button-primary{margin-top:15px}.field-catalog{margin-top:33px}.field-catalog-heading{justify-content:space-between;align-items:end;margin-bottom:13px;display:flex}.field-catalog-heading h2{font:500 21px var(--serif);margin:6px 0 0}.field-catalog-heading>span{color:var(--faint);font:9px var(--mono)}.catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;display:grid}.catalog-card{border:1px solid var(--border);background:var(--surface);min-height:120px;padding:14px}.catalog-card.planned{background:color-mix(in srgb, var(--surface) 72%, var(--bg))}.catalog-status{color:#687954;font:8px var(--mono);letter-spacing:.04em;align-items:center;gap:5px;display:flex}.catalog-card.planned .catalog-status{color:var(--faint)}.catalog-card h3{font:500 15px var(--serif);margin:8px 0 4px}.catalog-card>p{color:var(--muted);font-size:9px;line-height:1.5}.catalog-card .text-link{margin-top:7px;font-size:9px}@media (width<=760px){.lesson-layout{grid-template-columns:1fr;gap:10px}.lesson-outline{border-bottom:1px solid var(--border);gap:4px;padding:0 0 8px;display:flex;position:static;overflow-x:auto}.outline-back,.outline-title{display:none}.outline-item{border:1px solid var(--border);background:var(--surface);flex:0 0 150px;align-items:flex-start}.outline-item.current{box-shadow:inset 0 -2px var(--accent)}.lesson-content{max-width:none}.learning-intro .intro-icon{display:none}}@media (width<=600px){.overview-grid,.summary-columns{grid-template-columns:1fr}.overview-card{padding:16px}.overview-section-heading{flex-direction:column;align-items:start;gap:3px}.module-lesson-preview{grid-template-columns:28px 1fr;gap:8px;padding:10px}.lesson-duration{grid-column:2}.overview-footer{flex-direction:column;align-items:stretch}.overview-footer .button-primary{align-self:flex-start}.project-milestones{grid-template-columns:1fr}.project-milestones>div{grid-template-columns:20px 1fr;column-gap:5px;display:grid}.project-milestones span{grid-row:span 2}.project-milestones p{grid-column:2}.lesson-content>h2{font-size:27px}.assessment-card{padding:13px}.lesson-next-row{flex-direction:column;align-items:flex-start}.lesson-next-row .button-primary{align-self:flex-start}.completion-summary{padding:20px}.learning-meta{gap:8px 13px!important}}.code-lab-page{max-width:1200px;padding-top:11px}.code-lab-heading{border-bottom:1px solid var(--border);justify-content:space-between;align-items:end;gap:20px;padding:6px 0 17px;display:flex}.code-lab-heading-tools{flex:none;align-items:end;gap:12px;display:flex}.language-selector{min-width:178px;color:var(--muted);gap:5px;font-size:9px;display:grid}.language-selector span{color:var(--faint);font:8px var(--mono);letter-spacing:.06em;text-transform:uppercase}.language-selector select{border:1px solid var(--border-strong);width:100%;min-height:34px;color:var(--ink);background:var(--surface);font:10px var(--sans);cursor:pointer;border-radius:3px;padding:6px 28px 6px 9px}.language-selector select:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.code-lab-heading h1{color:var(--ink);font:500 37px/1.2 var(--serif);margin:10px 0 5px}.code-lab-heading h1 em{color:var(--accent);font-weight:500}.code-lab-heading>div>p{color:var(--muted);font-size:11px}.runtime-pill{border:1px solid var(--border);color:var(--muted);background:var(--surface);border-radius:20px;flex:none;align-items:center;gap:7px;margin-bottom:4px;padding:7px 10px;font-size:9px;display:inline-flex}.runtime-pill.ready{color:#657650;border-color:#d2d8c6}.runtime-pill.error{color:#985e59;border-color:#dec7c4}.runtime-pill.running{color:var(--accent)}.spinning{animation:.9s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.code-lab-safety{color:var(--muted);background:var(--warm);border-left:2px solid #ad8e62;align-items:flex-start;gap:8px;margin:12px 0 15px;padding:10px 12px;display:flex}.code-lab-safety svg{color:#8c714d;flex:none;margin-top:1px}.code-lab-safety p{font-size:9px;line-height:1.6}.draft-status{color:#657650;margin:-6px 0 10px;font-size:9px}.draft-status.warning{color:#985e59}.code-lab-layout{grid-template-columns:205px minmax(0,1fr);align-items:start;gap:18px;display:grid}.challenge-rail{border:1px solid var(--border);background:var(--surface);padding:12px 0}.rail-heading{border-bottom:1px solid var(--border);gap:6px;padding:0 12px 12px;display:grid}.rail-heading .eyebrow{color:var(--faint);font-size:8px}.rail-heading>strong{color:var(--muted);font-size:9px;font-weight:500}.challenge-choice{border:0;border-bottom:1px solid var(--border);width:100%;min-height:58px;color:var(--muted);text-align:left;cursor:pointer;background:0 0;align-items:center;gap:9px;padding:8px 10px;display:flex}.challenge-choice:hover{background:var(--bg)}.challenge-choice.selected{box-shadow:inset 2px 0 var(--accent);background:var(--accent-soft)}.challenge-number{color:var(--accent);font:9px var(--mono)}.challenge-choice-text{flex:1;gap:4px;display:grid}.challenge-choice-text small{color:var(--faint);font:7px var(--mono);letter-spacing:.06em}.challenge-choice-text strong{color:var(--ink);font-size:9px;font-weight:500;line-height:1.4}.passed-icon{color:#75845f;flex:none}.not-passed-icon{color:var(--border-strong);flex:none}.language-note{color:var(--accent);background:var(--accent-soft);align-items:flex-start;gap:9px;margin:12px 10px 0;padding:9px;display:flex}.language-note p{gap:4px;display:grid}.language-note strong{color:var(--ink);font-size:9px;font-weight:500}.language-note small{color:var(--muted);font-size:8px;line-height:1.4}.lab-main{min-width:0}.exercise-brief{border:1px solid var(--border);background:var(--surface);padding:15px 16px}.exercise-heading{justify-content:space-between;align-items:start;gap:12px;display:flex}.exercise-heading .eyebrow{color:var(--faint);font-size:8px}.exercise-heading h2{color:var(--ink);font:500 19px/1.3 var(--serif);margin:5px 0 0}.exercise-brief>p{color:var(--muted);margin-top:8px;font-size:10px;line-height:1.7}.exercise-objective{color:var(--accent);align-items:flex-start;gap:6px;margin-top:9px;font-size:9px;line-height:1.5;display:flex}.exercise-objective svg{flex:none}.passed-before{color:#657650;background:var(--olive);font:7px var(--mono);white-space:nowrap;align-items:center;gap:4px;padding:4px 6px;display:inline-flex}.exercise-signature{background:var(--bg);gap:4px;margin-top:11px;padding:8px 9px;display:grid}.exercise-signature span{color:var(--faint);font:7px var(--mono);letter-spacing:.08em}.exercise-signature code,.exercise-examples code{color:var(--ink);font:8px/1.5 var(--mono);overflow-wrap:anywhere}.exercise-examples{gap:5px;margin-top:10px;display:grid}.exercise-examples>strong{color:var(--muted);font-size:9px;font-weight:500}.exercise-examples>div{grid-template-columns:minmax(0,1fr) auto minmax(0,.8fr);align-items:center;gap:7px;display:grid}.exercise-examples>div>span{color:var(--faint);font-size:9px}.concept-explanation{color:var(--muted);margin-top:10px;font-size:9px}.concept-explanation summary{width:fit-content;color:var(--accent);cursor:pointer}.concept-explanation p{margin-top:6px;line-height:1.6}.hint-action{color:var(--accent);cursor:pointer;background:0 0;border:0;align-items:center;gap:5px;margin-top:8px;padding:4px 0;font-size:9px;display:inline-flex}.lab-hints{color:var(--muted);background:var(--bg);gap:5px;margin:5px 0 0;padding:9px 12px 9px 27px;font-size:9px;line-height:1.5;display:grid}.lab-hints li::marker{color:var(--accent)}.editor-panel{border:1px solid var(--border-strong);background:var(--graphite);margin-top:12px;overflow:hidden}.editor-toolbar{color:#d6d0c8;background:#302e2b;border-bottom:1px solid #44403b;justify-content:space-between;align-items:center;gap:10px;min-height:43px;padding:5px 9px 5px 13px;display:flex}.editor-language{color:#d2b4b5;align-items:center;gap:6px;display:flex}.editor-language select{appearance:none;color:#eee7df;cursor:pointer;background:0 0;border:0;outline:none;max-width:120px;padding:3px 0;font-size:9px}.editor-language select option{color:#292725}.editor-actions{align-items:center;gap:5px;display:flex}.timeout-setting{color:#a9a39b;align-items:center;gap:4px;margin-right:3px;font-size:8px;display:inline-flex}.timeout-setting select{color:#eee7df;background:#292725;border:1px solid #4c4741;border-radius:3px;padding:4px 3px;font-size:8px}.editor-action{cursor:pointer;border:1px solid #0000;border-radius:3px;justify-content:center;align-items:center;gap:5px;min-height:27px;padding:4px 7px;font-size:8px;display:inline-flex}.editor-action.quiet{color:#b4ada5;background:0 0}.editor-action.quiet:hover{color:#fff;border-color:#504a43}.editor-action.saved{color:#c6d0b1;background:#3a4232}.editor-action.stop-button{color:#e1b5b1;background:#483432}.editor-action.stop-button:disabled{opacity:.6;cursor:not-allowed}.code-editor{background:#262523;grid-template-columns:39px minmax(0,1fr);min-height:257px;max-height:55vh;padding:12px 0;display:grid}.line-gutter{color:#716d67;font:11px/1.65 var(--mono);-webkit-user-select:none;user-select:none;flex-direction:column;align-items:flex-end;gap:0;padding:0 10px 0 0;display:flex;overflow:hidden}.code-editor textarea{resize:vertical;color:#e7dfd6;caret-color:#d59097;width:100%;min-height:232px;font:11px/1.65 var(--mono);tab-size:4;white-space:pre;background:0 0;border:0;outline:0;padding:0 13px;display:block;overflow:auto}.code-editor textarea:focus-visible{outline:none}.code-editor:focus-within{box-shadow:inset 0 0 0 1px #986d70}.run-toolbar{background:#302e2b;border-top:1px solid #44403b;justify-content:space-between;align-items:center;gap:10px;padding:9px 11px;display:flex}.editor-help{color:#98928a;font-size:8px}.run-toolbar>div{gap:7px;display:flex}.run-button{color:#fff8f3;cursor:pointer;background:#783f4b;border:1px solid #a1666f;border-radius:3px;justify-content:center;align-items:center;gap:6px;padding:7px 10px;font-size:9px;display:inline-flex}.run-button:hover:not(:disabled){background:#8b4c58}.run-button:disabled{opacity:.45;cursor:not-allowed}.run-button.secondary-run{color:#e5ded5;background:0 0;border-color:#5a544c}.run-button.secondary-run:hover:not(:disabled){background:#403d39}.results-grid{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:10px;margin-top:11px;display:grid}.result-panel{border:1px solid var(--border);background:var(--surface);min-width:0;min-height:145px}.result-panel-heading{border-bottom:1px solid var(--border);min-height:36px;color:var(--faint);font:8px var(--mono);letter-spacing:.07em;justify-content:space-between;align-items:center;padding:7px 10px;display:flex}.result-panel-heading>span{align-items:center;gap:6px;display:inline-flex}.result-panel-heading svg,.running-label{color:var(--accent)}.result-empty{min-height:104px;color:var(--faint);text-align:center;place-items:center;padding:15px;font-size:9px;line-height:1.6;display:grid}.stdout-output,.stderr-output,.execution-error{max-height:175px;color:var(--ink);background:color-mix(in srgb, var(--surface) 75%, var(--bg));font:9px/1.6 var(--mono);white-space:pre-wrap;overflow-wrap:anywhere;margin:0;padding:12px;overflow:auto}.stderr-output{color:#a16a57}.execution-error{color:#a15c56;border-bottom:1px solid var(--border)}.return-value{border-top:1px solid var(--border);padding:9px 12px}.return-value small{color:var(--faint);font:7px var(--mono);letter-spacing:.08em}.return-value pre{color:var(--accent);font:10px/1.5 var(--mono);white-space:pre-wrap;overflow-wrap:anywhere;margin-top:5px}.result-panel-heading>strong{font:8px var(--mono)}.tests-pass{color:#657650}.tests-fail{color:#a15c56}.test-case{border-bottom:1px solid var(--border);padding:9px 10px}.test-case:last-child{border-bottom:0}.test-case-title{align-items:center;gap:6px;display:flex}.test-case-title svg{color:#a15c56;flex:none}.test-case.pass .test-case-title svg{color:#71845c}.test-case-title strong{color:var(--ink);flex:1;font-size:9px;font-weight:500}.test-case-title>span{color:#a15c56;font:7px var(--mono)}.test-case.pass .test-case-title>span{color:#657650}.test-case-details{color:var(--muted);gap:4px;margin:8px 0 0 20px;font-size:8px;line-height:1.5;display:grid}.test-case-details code{color:var(--ink);font:8px var(--mono);overflow-wrap:anywhere}.test-case-details>p>strong{color:var(--ink);font-weight:500}.runtime-error-panel{color:#985e59;background:color-mix(in srgb, var(--surface) 80%, #f0e1df);border:1px solid #dec7c4;align-items:flex-start;gap:10px;margin-top:11px;padding:13px;display:flex}.runtime-error-panel>svg{flex:none}.runtime-error-panel>div{flex:1}.runtime-error-panel strong{font-size:10px}.runtime-error-panel p{color:var(--muted);white-space:pre-wrap;margin-top:5px;font-size:9px;line-height:1.55}.runtime-error-panel .button-secondary{white-space:nowrap;margin:0}.runtime-limit-note{color:var(--faint);margin-top:12px;font-size:8px;line-height:1.5}@media (width<=900px){.code-lab-layout{grid-template-columns:1fr}.challenge-rail{align-items:stretch;padding:0;display:flex;overflow-x:auto}.rail-heading{border-right:1px solid var(--border);border-bottom:0;flex:0 0 130px;justify-content:center;padding:8px}.challenge-choice{border-right:1px solid var(--border);border-bottom:0;flex:0 0 185px}.language-note{flex:0 0 155px;align-self:center}.challenge-choice.selected{box-shadow:inset 0 -2px var(--accent)}}@media (width<=620px){.code-lab-heading{flex-direction:column;align-items:flex-start}.code-lab-heading h1{font-size:32px}.code-lab-heading-tools{flex-direction:column;align-items:flex-start;gap:8px;width:100%}.language-selector{width:100%}.runtime-pill{margin:0}.results-grid{grid-template-columns:1fr}.editor-toolbar{flex-direction:column;align-items:flex-start;padding:8px}.editor-actions{flex-wrap:wrap}.run-toolbar{flex-direction:column;align-items:flex-start}.run-toolbar>div{width:100%}.run-button{flex:1}.code-editor{min-height:230px}.code-editor textarea{min-height:204px}.runtime-error-panel{flex-wrap:wrap}.runtime-error-panel .button-secondary{margin-left:27px}.exercise-heading h2{font-size:17px}}@media (prefers-reduced-motion:reduce){.spinning{animation-duration:1.8s}}