@font-face{font-family:Pretendard;src:url(fonts/Pretendard-Regular.woff2) format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:Pretendard;src:url(fonts/Pretendard-SemiBold.woff2) format('woff2');font-weight:500 600;font-display:swap}
@font-face{font-family:Pretendard;src:url(fonts/Pretendard-Bold.woff2) format('woff2');font-weight:650 900;font-display:swap}
:root{--bg:#f4f6fb;--surface:#fff;--soft:#edf1f8;--text:#14233f;--muted:#63718a;--line:#e0e6ef;--accent:#315de7;--accent-dark:#2449c7;--accent-soft:#edf2ff;--code:#14223a;--shadow:0 10px 30px #18346108;--radius:14px;color-scheme:light}
:root[data-theme=dark]{--bg:#0e1728;--surface:#17233a;--soft:#1d2d46;--text:#ecf2ff;--muted:#a5b6d0;--line:#2a3a54;--accent:#8bb0ff;--accent-dark:#b0caff;--accent-soft:#24385d;--code:#0b1424;--shadow:0 10px 30px #0002;color-scheme:dark}
body{font-family:Pretendard,-apple-system,BlinkMacSystemFont,'Segoe UI','Malgun Gothic',sans-serif;font-weight:400;letter-spacing:-.015em}
button,input,select,textarea{font-family:inherit}h1,h2,h3,h4{letter-spacing:-.035em;font-weight:700}a,button{transition:color .16s,background .16s,border-color .16s,box-shadow .16s,transform .16s}
.wrap{width:min(1280px,calc(100% - 80px))}.icon{width:19px;height:19px}.glyph{width:26px;height:26px;flex:0 0 auto}.eyebrow{font:600 10px/1.5 Pretendard,sans-serif;letter-spacing:.12em}.status-dot{background:#315de7;box-shadow:0 0 0 4px #315de712;width:6px;height:6px;margin-right:10px}.text-link{font-size:13px;font-weight:600;gap:8px;min-height:36px}.button{border-radius:8px;min-height:44px;padding:11px 18px;font-size:13px;gap:18px;font-weight:600}.primary{box-shadow:0 3px 6px #315de715}.primary:hover{box-shadow:0 6px 15px #315de727}.secondary{background:var(--surface)}
.site-header{background:var(--surface);border-bottom:1px solid var(--line)}.header-inner{width:min(1376px,calc(100% - 64px));height:72px;gap:30px}.brand{font-size:22px;font-weight:700;letter-spacing:-.055em;gap:10px}.brand strong{color:var(--accent);font-weight:700}.brand small{font:400 9px/1.3 Pretendard,sans-serif;letter-spacing:.12em;margin-top:4px;color:var(--muted)}.brand-mark{width:38px;height:38px;color:#315de7;flex:0 0 auto}.desktop-nav{gap:8px}.desktop-nav a{font-size:13px;min-height:38px;padding:0 16px;font-weight:600;border-radius:7px}.desktop-nav a:hover{background:var(--soft)}.desktop-nav a[aria-current]{background:var(--accent-soft);text-decoration:none;color:var(--accent)}.header-tools{gap:2px}.icon-button{width:38px;height:38px}.language-switch a{font:600 11px Pretendard,sans-serif}.language-switch a[aria-current]{background:var(--accent-soft);border-radius:6px}.language-switch{border-left:0;padding-left:8px}.language-switch a{min-height:30px;min-width:31px}.search-dialog{border-radius:14px}.dialog-top strong{font-size:20px}
.academy-home{padding-top:25px;padding-bottom:64px}.academy-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;font-size:12px;font-weight:500;color:var(--muted)}.academy-heading>div{display:flex;align-items:center}.learning-method{display:flex;align-items:center;gap:16px;font-size:11px}.learning-method i{font-style:normal;color:#a8b5c9}
.launch-hero{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(360px,1fr);border:1px solid var(--line);background:var(--surface);border-radius:16px;overflow:hidden;box-shadow:var(--shadow)}.launch-copy{padding:32px 40px;background-image:radial-gradient(circle at 98% 100%,#edf3ff 0,transparent 46%)}.launch-copy h1{font-size:42px;line-height:1.25;letter-spacing:-.045em;margin-top:11px}.launch-copy h1 em{font-style:normal;color:var(--accent)}.launch-description{font-size:14px;line-height:1.75;color:var(--muted);margin:15px 0 21px}.launch-copy .button-row{gap:10px}.hero-facts{display:flex;gap:18px;align-items:center;margin-top:17px;font-size:11px;color:var(--muted);flex-wrap:wrap}.hero-facts>span{display:flex;align-items:center;gap:5px}.hero-facts .icon{width:13px;height:13px;color:var(--accent)}
.progress-dashboard{background:#182d53;color:#fff;padding:26px 27px 22px;display:flex;flex-direction:column;position:relative;isolation:isolate;overflow:hidden}.progress-dashboard:before,.progress-dashboard:after{content:'';position:absolute;z-index:-1;border:1px solid #ffffff0b;border-radius:50%;width:370px;height:370px;right:-170px;top:-130px}.progress-dashboard:after{width:300px;height:300px;right:-135px;top:-95px}.dashboard-top{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:10px;font-weight:600;letter-spacing:.1em;color:#c8d7f1}.device-badge{font-size:9px;font-weight:400;letter-spacing:0;color:#d0dcf2;border:1px solid #ffffff26;border-radius:4px;padding:4px 7px}.dashboard-core{display:flex;align-items:center;gap:26px;flex:1;min-height:170px}.progress-orbit{--progress:0%;width:132px;height:132px;flex:0 0 auto;position:relative;display:grid;place-items:center;border-radius:50%;background:conic-gradient(#b8f28b var(--progress),#385073 0);padding:6px;transform:rotate(-25deg)}.progress-orbit:before{content:'';position:absolute;inset:-10px;border-radius:50%;border:1px solid #6c8db833}.progress-orbit>div{width:100%;height:100%;border-radius:50%;background:#182d53;display:flex;align-items:center;justify-content:center;flex-direction:column;transform:rotate(25deg)}.progress-orbit strong{font-size:42px;line-height:1.1;letter-spacing:-.04em;font-weight:600;color:#fff}.progress-orbit span{font-size:9px;letter-spacing:.11em;color:#bdcce5;margin-top:8px}.dashboard-copy{flex:1}.dashboard-copy h2{font-size:25px;line-height:1.4;letter-spacing:-.03em;color:#fff;margin-bottom:16px}.dashboard-stats{font-size:11px;color:#c0cfea;display:flex;flex-direction:column;gap:7px}.dashboard-stats span{display:flex;justify-content:space-between;gap:15px}.dashboard-stats b{color:#c5f5a2;font-weight:600;font-size:13px}.dashboard-empty,.dashboard-resume{border-top:1px solid #ffffff24;padding-top:17px;margin-top:10px;font-size:12px}.dashboard-empty{display:flex;align-items:center;justify-content:space-between;gap:12px;color:#e5edff}.dashboard-empty:hover,.dashboard-resume a:hover{color:#c5f5a2}.dashboard-resume a{display:flex;align-items:center;gap:10px;color:#fff;font-weight:500;line-height:1.5}.dashboard-resume a>span{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.resume-caption{display:block;font-size:9px;letter-spacing:.05em;color:#c0cfea;margin-bottom:6px}.dashboard-resume .icon{margin-left:auto;flex-shrink:0}
.discovery-search{display:flex;gap:24px;align-items:center;margin:19px 0 34px}.discovery-search .search-form{flex:1;background:var(--surface);padding:4px 5px 4px 16px;border-radius:9px;gap:10px;box-shadow:0 2px 4px #17365c03}.search-form input{font-size:13px}.search-form button{font-weight:600;border-radius:6px;min-height:36px;padding:8px 17px}.discovery-search .search-form input{height:37px}.quick-search{display:flex;align-items:center;gap:14px;font-size:11px}.quick-search>span{color:var(--muted);font-size:10px}.quick-search a{font-weight:500;white-space:nowrap}.quick-search a:hover{text-decoration:underline;text-underline-offset:3px}.section-heading{margin-bottom:18px;align-items:center;gap:20px}.section-heading h2{font-size:25px;margin-top:5px;letter-spacing:-.04em}.section-caption{font-size:12px;color:var(--muted);margin-top:7px}.map-section{scroll-margin-top:90px}.learning-path-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;position:relative}
.tone-0{--tone:#315de7;--tone-soft:#edf2ff}.tone-1{--tone:#0b879a;--tone-soft:#e8f6f8}.tone-2{--tone:#7752ca;--tone-soft:#f1edfc}.tone-3{--tone:#af7522;--tone-soft:#fcf4e4}.tone-4{--tone:#cb5573;--tone-soft:#fff0f4}
.level-tile{position:relative;min-width:0;text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:18px 17px 14px;color:var(--text);outline-offset:3px}.level-tile:hover{border-color:var(--tone);transform:translateY(-3px);box-shadow:0 6px 20px #10234b0c}.level-tile[aria-selected=true]{border:1.5px solid var(--tone);padding:17.5px 16.5px 13.5px;background:linear-gradient(150deg,var(--surface) 45%,var(--tone-soft));box-shadow:0 5px 16px #193c6a0b}.level-tile[aria-selected=true]:after{content:'';position:absolute;bottom:-17px;left:calc(50% - 5px);width:10px;height:10px;background:var(--surface);transform:rotate(45deg);border-left:1px solid var(--line);border-top:1px solid var(--line);z-index:2}.level-tile-top{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:17px}.level-icon{display:grid;place-items:center;width:39px;height:39px;border:1px solid color-mix(in srgb,var(--tone) 15%,transparent);border-radius:10px;color:var(--tone);background:var(--tone-soft)}.level-icon .glyph{width:23px;height:23px}.level-step{font-size:9px;letter-spacing:.06em;color:var(--tone);font-weight:600}.level-tile>strong{display:block;font-size:17px;letter-spacing:-.035em;line-height:1.4;min-height:24px}.skill-summary{display:block;font-size:10px;line-height:1.65;color:var(--muted);min-height:33px;margin:8px 0 13px;word-break:keep-all}.tile-progress{display:block;width:100%;height:3px;background:var(--soft);border-radius:3px;overflow:hidden}.tile-progress>span{display:block;width:0;height:100%;background:var(--tone);border-radius:3px}.tile-foot{display:flex;justify-content:space-between;align-items:center;font-size:9px;color:var(--muted);margin-top:9px;gap:5px}.tile-foot>span:first-child{letter-spacing:.02em}.tile-foot>span:last-child{font-size:10px;color:var(--text);font-weight:500}
.level-detail{margin-top:12px;display:grid;grid-template-columns:1.08fr 1.5fr .7fr;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:24px;gap:27px;align-items:center;box-shadow:var(--shadow)}.detail-kicker{font-size:9px;font-weight:600;letter-spacing:.04em;color:var(--tone)}.detail-summary h3{font-size:21px;margin:8px 0 9px}.detail-summary>p{font-size:12px;line-height:1.7;color:var(--muted)}.prerequisite-line{display:flex;gap:7px;align-items:center;font-size:10px;line-height:1.6;margin-top:13px;color:var(--muted)}.prerequisite-line .glyph{width:14px;height:14px;color:var(--tone)}.detail-lessons{border-left:1px solid var(--line);border-right:1px solid var(--line);padding-inline:24px;min-width:0}.detail-lessons>p{font-size:10px;font-weight:600;letter-spacing:.03em;color:var(--muted);margin-bottom:6px}.detail-lessons>a{display:flex;align-items:center;gap:10px;min-height:37px;border-bottom:1px solid var(--line);font-size:11px}.detail-lessons>a:last-child{border:0}.detail-lessons>a>span{font-size:10px;color:var(--tone);font-variant-numeric:tabular-nums}.detail-lessons strong{font-weight:500;line-height:1.6;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.detail-lessons .icon{width:15px;height:15px;margin-left:auto}.detail-action{display:flex;flex-direction:column;align-items:stretch;text-align:center;gap:11px}.detail-count{display:flex;justify-content:center;align-items:baseline;gap:8px;font-size:30px;line-height:1;letter-spacing:-.04em;font-weight:600}.detail-count small{font-size:10px;letter-spacing:0;color:var(--muted);font-weight:400}.detail-action .button{background:var(--tone);color:#fff;border:0;font-size:12px;padding:10px 13px;min-height:40px;gap:10px;box-shadow:none}.detail-action>small{font-size:9px;color:var(--muted)}.appendix-line{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:17px 2px;margin-top:3px;border-bottom:1px solid var(--line);font-size:11px;color:var(--muted)}.appendix-line>span{display:flex;align-items:center;gap:10px}.appendix-line strong{font-size:12px;color:var(--text);font-weight:500}.appendix-line .glyph{width:18px;height:18px;color:var(--muted)}.appendix-line .icon{width:15px;height:15px}
.home-bottom-grid{display:grid;grid-template-columns:1.65fr 1fr;gap:36px;padding-top:38px}.home-topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.home-topic-grid>a{display:flex;align-items:center;gap:13px;padding:17px 16px;border-radius:10px;background:var(--surface);border:1px solid var(--line)}.home-topic-grid>a:hover{border-color:var(--accent);box-shadow:var(--shadow)}.topic-art{width:39px;height:39px;border-radius:10px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;flex-shrink:0}.topic-art .glyph{width:22px;height:22px}.topic-python,.topic-network{background:#e9f7f6;color:#0b879a}.topic-web,.topic-systems{background:#f1edfc;color:#7752ca}.topic-crypto,.topic-forensics{background:#fcf4e4;color:#a36b1d}.home-topic-grid strong{display:block;font-size:13px;font-weight:600;line-height:1.4}.home-topic-grid small{display:block;font-size:10px;color:var(--muted);margin-top:3px}.home-topic-grid>a>.icon{margin-left:auto;width:15px;height:15px;color:var(--muted)}.learning-note{padding:27px 28px;background:var(--surface);border:1px solid var(--line);border-radius:13px;position:relative;overflow:hidden}.note-label{font-size:9px;font-weight:600;color:var(--accent);letter-spacing:.1em}.learning-note h2{font-size:23px;line-height:1.4;margin:10px 0 22px}.learning-note ol{padding:0;margin:0;list-style:none;display:flex;flex-direction:column;gap:18px}.learning-note li{display:flex;align-items:flex-start;gap:12px}.learning-note li>span{display:grid;place-items:center;width:25px;height:25px;flex:0 0 auto;font-size:9px;font-weight:600;color:var(--accent);border:1px solid var(--line);border-radius:7px;background:var(--bg)}.learning-note li strong{font-size:12px;font-weight:600}.learning-note li p{font-size:11px;line-height:1.7;color:var(--muted);margin-top:2px}.learning-note>.text-link{border-top:1px solid var(--line);width:100%;margin-top:21px;padding-top:14px;font-size:11px;justify-content:space-between}
.page-intro{padding:39px 0 25px}.page-intro h1{font-size:35px;line-height:1.3;margin:7px 0 12px;font-weight:700;letter-spacing:-.04em}.page-intro>p:not(.eyebrow){font-size:14px;line-height:1.7}.catalog-toolbar{padding:13px;border-radius:10px;box-shadow:var(--shadow)}.filter-form{gap:8px}.filter-form input,.filter-form select{height:43px;background:var(--bg);border-radius:6px;font-size:12px}.search-field .icon{top:12px;width:18px;height:18px}.filter-form .button{min-height:43px}.prerequisite{font-size:12px;border:1px solid var(--line);background:var(--surface);color:var(--muted);margin-top:17px;padding:10px 13px;border-radius:7px}.prerequisite strong{color:var(--accent)}.level-tabs{gap:6px;margin-top:20px;padding-bottom:15px;border-bottom:1px solid var(--line)}.level-tabs a{font-size:12px;min-height:36px;padding:8px 15px;border-radius:6px}.level-tabs a[aria-current]{box-shadow:0 2px 4px #315de722}.results-heading{font-size:12px;margin:14px 0}.results-heading .text-link{font-size:11px}.module-group{border-radius:10px;margin-bottom:12px}.module-group>summary{padding:15px 19px;gap:15px}.module-group>summary strong{font-size:16px;font-weight:600}.module-group>summary small{font:400 10px Pretendard,sans-serif;letter-spacing:.04em;margin-top:3px}.module-index{padding:9px 10px;font:600 11px Pretendard,sans-serif;border-radius:7px}.module-count{font-size:11px}.module-group[open]>summary{background:var(--accent-soft)}.lesson-row>a{padding:15px 19px;gap:15px}.step-number{font:500 11px Pretendard,sans-serif;color:var(--muted);width:31px;flex-shrink:0;font-variant-numeric:tabular-nums}.lesson-row-title{font-size:15px;font-weight:600;line-height:1.6}.lesson-row-goal{font-size:11px;line-height:1.6;margin:4px 0 0;color:var(--muted)}.lesson-meta{font-size:10px;gap:8px;margin-top:6px}.row-arrow .icon{width:16px;height:16px}.lesson-row.is-complete .step-number{color:var(--accent)}.lesson-row-copy{min-width:0}.module-group .lesson-row-goal,.search-results .lesson-row-goal{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.search-results{background:var(--surface);border:1px solid var(--line);border-radius:10px;overflow:hidden}.search-results>.lesson-row:first-child{border:0}.catalog-summary{display:flex;align-items:center;gap:16px;font-size:11px;color:var(--muted);margin-top:15px}.catalog-summary strong{font-size:13px;color:var(--text);margin-right:4px}.catalog-summary>span+span{border-left:1px solid var(--line);padding-left:16px}.level-tabs a small{margin-left:6px;color:inherit;opacity:.7;font-size:10px}
.reader-shell{width:min(1392px,calc(100% - 64px));grid-template-columns:218px minmax(0,760px) 188px;gap:26px;padding-top:27px}.lesson-article{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:28px;min-width:0}.lesson-heading h1{font-size:29px;font-weight:700;line-height:1.45;margin:8px 0 19px;letter-spacing:-.035em}.breadcrumbs{font-size:11px;margin-bottom:20px;gap:7px}.lesson-heading-meta{margin-bottom:24px;padding-bottom:20px;font-size:11px;gap:10px}.bookmark-button{font-size:11px;border-radius:6px;min-height:34px;padding:6px 9px}.lesson-heading-meta .pill{font-size:10px;border-radius:5px}.lesson-content{font-size:16px;line-height:1.95;letter-spacing:-.01em}.lesson-content h2{font-size:23px;line-height:1.5;margin-top:38px;letter-spacing:-.03em;padding-bottom:10px;border-bottom:1px solid var(--line)}.lesson-content h3{font-size:19px;line-height:1.6;margin-top:28px}.lesson-content blockquote{background:var(--accent-soft);border-left:3px solid var(--accent);border-radius:0 8px 8px 0;padding:16px 18px;font-size:13px;line-height:1.85}.lesson-content blockquote p+p{margin-top:6px}.lesson-content code{border-radius:4px;background:var(--accent-soft);color:var(--accent);font-size:.87em;padding:2px 5px}.lesson-content pre{background:var(--code);border-radius:9px;font-size:12px;line-height:1.85;padding:46px 19px 20px;border:1px solid #ffffff10}.lesson-content pre code{background:none;color:#dce8ff;padding:0;font-size:inherit}.copy-button{font:500 10px Pretendard,sans-serif;border-radius:5px;background:#ffffff0e;border-color:#ffffff26;color:#d4e2ff;min-height:29px;padding:5px 9px}.copy-button:hover{background:#ffffff25}.lesson-content th{background:var(--soft);font-weight:600}.lesson-content table{font-size:12px}.lesson-content td,.lesson-content th{padding:11px 13px;border-color:var(--line)}.answer-section{border-radius:9px;background:var(--bg);border-color:var(--line);padding:0 18px 10px}.answer-section>summary{font-size:12px;font-weight:600;padding:13px 18px;margin-inline:-18px}.answer-section h2{border:0}.panel-sticky{top:95px}.course-panel .eyebrow{margin-top:20px;font-size:10px}.course-panel h2{font-size:18px;line-height:1.5}.back-link{font-size:11px;color:var(--muted);margin-bottom:20px}.side-progress{font-size:10px;margin:16px 0 12px}.side-progress progress{height:4px}.completion-checkbox{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:12px;font-size:11px;margin-bottom:18px}.completion-checkbox:has(input:checked){background:var(--accent-soft);border-color:var(--accent)}.course-list{max-height:calc(100vh - 340px);border-top:1px solid var(--line)}.course-list summary{font-size:11px;line-height:1.6;padding:14px 4px}.course-list .lesson-row{border:0}.course-list .compact a{padding:10px 9px;gap:8px;border-radius:6px}.course-list .compact .lesson-row-title{font-size:11px;line-height:1.6;font-weight:400}.course-list .compact .step-number{font-size:9px;width:23px}.course-list [aria-current=page]{background:var(--accent-soft);color:var(--accent);border-left:2px solid var(--accent)}.course-panel .muted{font-size:10px}.toc-panel .panel-sticky{padding-left:19px;border-left:1px solid var(--line)}.toc-panel .eyebrow{font-size:10px;margin-bottom:13px}.toc-panel nav a{font-size:11px;line-height:1.65;padding:6px 0}.toc-panel nav a.active{font-weight:600;color:var(--accent)}.toc-panel nav .toc-h3{font-size:10px}.toc-top{font-size:10px}.reading-meter{top:71px;height:2px}.lesson-completion{border:1px solid var(--line);border-radius:10px;padding:20px;background:var(--accent-soft);gap:15px}.lesson-completion h2{font-size:21px}.lesson-completion p{font-size:12px}.lesson-pagination{gap:22px}.lesson-pagination strong{font-size:12px;line-height:1.7}.lesson-pagination small{font-size:11px}.report-link{font-size:11px;color:var(--muted)}
.section{padding-block:40px}.info-page{max-width:1180px}.start-feature{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:36px;gap:45px}.start-feature h2{font-size:33px;line-height:1.4}.start-feature p{font-size:14px;line-height:1.85}.terminal-preview{background:var(--code);border-radius:11px}.terminal-preview pre{font-size:12px}.guide-card{border-radius:11px;padding:25px;background:var(--surface)}.entry-number{color:var(--accent);font:600 11px Pretendard,sans-serif;margin-bottom:17px}.guide-card h3{font-size:19px}.guide-card p{font-size:13px;line-height:1.8}.starting-levels>a{padding-block:18px}.starting-levels h3{font-size:18px}.starting-levels p{font-size:12px}.practice-note{border:1px solid var(--line);background:var(--surface);border-radius:11px}.practice-note h2{font-size:22px}.practice-note p{font-size:13px}.topics-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.topic-card{padding:25px 22px;border-radius:12px;box-shadow:var(--shadow)}.topic-card:hover{transform:translateY(-3px);border-color:var(--accent)}.topic-glyph{width:48px;height:48px;border-radius:12px;background:var(--accent-soft);color:var(--accent);margin-bottom:25px}.topic-glyph .glyph{width:27px;height:27px}.topic-card h2{font-size:21px;line-height:1.4}.topic-card>small{font-size:10px;color:var(--muted)}.topic-card p{font-size:12px;line-height:1.8}.topic-card .text-link{font-size:12px}.local-note{font-size:12px;padding:17px;background:var(--surface);border:1px solid var(--line);border-radius:9px}.learning-summary{gap:14px}.learning-summary>div{border-radius:12px;background:var(--surface);padding:24px}.learning-summary strong{font-size:38px;color:var(--accent);font-weight:600}.learning-summary span{font-size:12px}.resume-card{background:var(--accent-soft);border-radius:12px;padding:25px}.resume-card h2{font-size:22px}.learning-tabs button{border-radius:7px;font-size:13px;padding:10px 16px}.learning-tabs{margin-block:24px 16px}.learning-list{border:1px solid var(--line);border-radius:10px;background:var(--surface);overflow:hidden}.learning-list a{font-size:13px;padding:17px 20px}.learning-settings .text-link{font-size:12px}.learning-settings .muted{font-size:11px}.about-layout{gap:60px}.prose{font-size:15px}.prose h2{font-size:24px}.about-note{background:var(--accent-soft);border-radius:13px;border:1px solid var(--line)}.feedback-section{gap:55px;margin-top:40px;padding-top:35px}.feedback-section h2{font-size:27px}.feedback-section p{font-size:13px}.feedback-form{padding:25px;background:var(--surface);border:1px solid var(--line);border-radius:12px}.feedback-form label{font-size:12px}.feedback-form input,.feedback-form textarea{font-size:13px;border-radius:7px;background:var(--bg)}.empty-state{background:var(--surface);border:1px solid var(--line);border-radius:12px}.empty-state h2{font-size:23px}.empty-state p{font-size:13px}.site-footer{background:var(--surface);border-top:1px solid var(--line);padding-top:30px}.footer-brand{font-size:23px;font-weight:700;letter-spacing:-.05em}.footer-brand span{color:var(--accent)}.footer-inner{padding-bottom:24px}.footer-inner p{font-size:11px;line-height:1.7;margin-top:6px}.footer-inner nav a{font-size:12px}.footer-bottom{font-size:10px;padding:16px 0}
[data-theme=dark] .launch-copy{background-image:none}[data-theme=dark] .primary,[data-theme=dark] .primary:hover,[data-theme=dark] .level-tabs a[aria-current]{color:#11233f}[data-theme=dark] .tone-0{--tone:#8bb0ff;--tone-soft:#24365c}[data-theme=dark] .tone-1{--tone:#5ccbd4;--tone-soft:#153d46}[data-theme=dark] .tone-2{--tone:#b4a0f1;--tone-soft:#332a51}[data-theme=dark] .tone-3{--tone:#e7b765;--tone-soft:#463924}[data-theme=dark] .tone-4{--tone:#f498b3;--tone-soft:#492d3d}[data-theme=dark] .detail-action .button{color:#102038}[data-theme=dark] .topic-art{background:var(--accent-soft);color:var(--accent)}[data-theme=dark] .progress-dashboard{border-left:1px solid var(--line)}
@media(min-width:1061px){.module-group .lesson-row-copy,.search-results .lesson-row-copy{display:grid;grid-template-columns:minmax(0,1fr) 190px;column-gap:22px;align-items:center}.module-group .lesson-row-title,.search-results .lesson-row-title{grid-column:1}.module-group .lesson-row-goal,.search-results .lesson-row-goal{grid-column:1;grid-row:2}.module-group .lesson-meta,.search-results .lesson-meta{grid-column:2;grid-row:1/3;margin:0;flex-wrap:wrap;justify-content:flex-start;gap:5px 9px}.module-group .lesson-meta>span+span:before,.search-results .lesson-meta>span+span:before{display:none}.module-group .lesson-meta>span:first-child,.search-results .lesson-meta>span:first-child{background:var(--soft);border-radius:4px;padding:3px 6px}.module-group .lesson-meta>span:nth-child(2),.search-results .lesson-meta>span:nth-child(2){color:var(--accent)}.module-group .lesson-meta>span:nth-child(3),.search-results .lesson-meta>span:nth-child(3){flex-basis:100%;padding-left:4px}}
@media(max-width:1279px){.wrap{width:calc(100% - 64px)}.launch-hero{grid-template-columns:minmax(0,1.5fr) minmax(320px,1fr)}.launch-copy{padding:29px}.launch-copy h1{font-size:35px}.hero-facts{gap:12px;font-size:10px}.progress-dashboard{padding:24px}.dashboard-core{gap:20px}.progress-orbit{width:112px;height:112px}.dashboard-copy h2{font-size:22px}.learning-path-grid{gap:10px}.level-tile{padding:15px 13px}.level-tile[aria-selected=true]{padding:14.5px 12.5px}.level-tile>strong{font-size:15px}.level-step{font-size:8px}.level-icon{width:33px;height:33px}.level-icon .glyph{width:21px;height:21px}.level-detail{grid-template-columns:1fr 1.3fr .7fr;gap:19px;padding:21px}.detail-lessons{padding-inline:19px}.detail-action .button{font-size:11px;padding:10px}.reader-shell{grid-template-columns:210px minmax(0,1fr);gap:23px}.reader-mobile-tools{margin-bottom:-3px}.toc-panel.is-open{background:var(--surface)}.topics-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:1060px){.header-inner{gap:20px}.launch-hero{grid-template-columns:1.3fr 1fr}.launch-copy{padding:26px}.launch-copy h1{font-size:30px}.launch-description{font-size:12px}.launch-copy .button{font-size:11px;padding:10px 12px;gap:8px}.hero-facts>span:last-child{display:none}.progress-dashboard{padding:23px 20px}.dashboard-top{font-size:9px}.device-badge{font-size:8px}.dashboard-core{gap:17px}.progress-orbit{width:96px;height:96px}.progress-orbit strong{font-size:34px}.progress-orbit span{font-size:8px}.dashboard-copy h2{font-size:21px}.dashboard-stats{font-size:10px}.dashboard-empty{font-size:10px}.discovery-search{gap:18px}.quick-search{gap:10px;font-size:10px}.quick-search>span{display:none}.learning-path-grid{gap:7px}.level-tile{padding:13px 11px}.level-tile[aria-selected=true]{padding:12.5px 10.5px}.level-tile-top{gap:4px;margin-bottom:13px}.level-step{font-size:7px}.level-icon{width:30px;height:30px;border-radius:8px}.level-icon .glyph{width:18px;height:18px}.level-tile>strong{font-size:14px;min-height:40px}.skill-summary{font-size:9px;min-height:42px;margin-top:5px}.tile-foot{font-size:7px}.tile-foot>span:last-child{font-size:8px}.level-detail{grid-template-columns:1fr 1.35fr;gap:20px}.detail-action{grid-column:1/-1;flex-direction:row;align-items:center;border-top:1px solid var(--line);padding-top:15px;gap:20px}.detail-count{font-size:25px;gap:6px}.detail-action>small{margin-left:auto}.detail-action .button{min-height:36px;margin-left:0}.detail-lessons{border-right:0;padding-right:0}.home-bottom-grid{grid-template-columns:1.4fr 1fr;gap:22px}.home-bottom-grid .section-heading{gap:12px;align-items:flex-start}.home-bottom-grid .section-heading h2{font-size:21px}.home-topic-grid{gap:8px}.home-topic-grid>a{padding:15px 12px;gap:10px}.home-topic-grid strong{font-size:11px}.home-topic-grid small{font-size:9px}.topic-art{width:33px;height:33px}.topic-art .glyph{width:20px;height:20px}.learning-note{padding:22px}.learning-note h2{font-size:20px}.learning-note li p{font-size:10px}.reader-shell{grid-template-columns:188px minmax(0,1fr);gap:20px}.lesson-article{padding:23px}.lesson-heading h1{font-size:26px}.lesson-content{font-size:16px}.learning-summary>div{gap:10px}.topics-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:767px){.wrap,.reader-shell{width:calc(100% - 32px)}.header-inner{height:64px;width:calc(100% - 28px);gap:10px}.brand{font-size:20px;gap:8px}.brand-mark{width:32px;height:32px}.brand small{font-size:7px;margin-top:3px}.header-tools .icon-button{width:39px;min-width:39px;height:44px}.header-tools .icon{width:18px;height:18px}.mobile-menu{padding:8px 17px 17px;max-height:calc(100dvh - 64px)}.mobile-menu>a{font-size:14px;min-height:49px}.mobile-language{padding-top:13px}.mobile-menu .mobile-language a{font-size:12px;padding:6px 13px}.academy-home{padding-top:17px;padding-bottom:35px}.academy-heading{margin-bottom:13px;font-size:10px}.learning-method{display:none}.launch-hero{display:flex;flex-direction:column;border-radius:12px}.launch-copy{padding:23px 21px}.launch-copy>.eyebrow{font-size:8px;letter-spacing:.1em}.launch-copy h1{font-size:clamp(26px,7.2vw,33px);line-height:1.27;margin-top:9px;letter-spacing:-.055em}.launch-description{font-size:12px;line-height:1.75;margin:13px 0 17px}.launch-copy .button-row{gap:8px;flex-wrap:nowrap}.launch-copy .button{font-size:11px;padding:10px 10px;min-height:43px;gap:8px;flex:1;white-space:nowrap}.launch-copy .button .icon{width:15px;height:15px}.hero-facts{display:none}.progress-dashboard{padding:16px 19px}.progress-dashboard:not(.has-history){display:none}.dashboard-top{margin-bottom:12px}.dashboard-core{min-height:0;gap:19px}.progress-orbit{width:70px;height:70px;padding:4px}.progress-orbit:before{inset:-5px}.progress-orbit strong{font-size:25px}.progress-orbit span{font-size:6px;margin-top:4px}.dashboard-copy{display:flex;align-items:center;gap:23px}.dashboard-copy h2{font-size:18px;line-height:1.45;margin:0}.dashboard-stats{flex:1;font-size:10px}.dashboard-stats b{font-size:11px}.dashboard-resume{padding-top:12px;margin-top:13px;font-size:11px}.resume-caption{font-size:8px}.discovery-search{display:block;margin:14px 0 23px}.discovery-search .search-form{padding:3px 4px 3px 13px}.discovery-search .search-form input{height:36px;font-size:12px}.search-form button{font-size:11px;padding:8px 14px}.quick-search{margin-top:11px;gap:13px;justify-content:space-between;font-size:10px;padding-inline:2px}.quick-search>span{display:inline;font-size:9px}.section-heading{flex-direction:row;align-items:flex-end;margin-bottom:13px;gap:10px}.section-heading h2{font-size:22px;margin-top:4px}.section-heading .eyebrow{font-size:8px}.section-heading>.text-link{font-size:10px;min-height:30px;white-space:nowrap;gap:5px}.section-heading>.text-link .icon{width:14px;height:14px}.section-caption{font-size:11px;margin-top:6px;line-height:1.6;max-width:260px}.map-section>.section-heading{align-items:flex-start;flex-wrap:wrap;row-gap:3px}.map-section>.section-heading>.text-link{margin-left:auto}.learning-path-grid{display:flex;flex-direction:column;gap:7px}.level-tile,.level-tile[aria-selected=true]{display:grid;grid-template-columns:38px minmax(0,1fr) 76px;column-gap:11px;row-gap:0;padding:12px 13px;border-radius:9px;min-height:74px;border-width:1px;align-items:center}.level-tile[aria-selected=true]{box-shadow:inset 3px 0 0 var(--tone);background:var(--surface)}.level-tile[aria-selected=true]:after{display:none}.level-tile-top{display:contents}.level-icon{grid-column:1;grid-row:1/3;width:36px;height:36px;border-radius:9px}.level-icon .glyph{width:21px;height:21px}.level-step{grid-column:3;grid-row:1;font-size:8px;text-align:right}.level-tile>strong{grid-column:2;grid-row:1;min-height:0;font-size:14px;line-height:1.5}.skill-summary{grid-column:2;grid-row:2;margin:3px 0 0;font-size:9px;min-height:0;line-height:1.6}.tile-foot{grid-column:3;grid-row:2;display:flex;align-items:flex-end;flex-direction:column;gap:2px;margin:3px 0 0;font-size:7px}.tile-foot>span:last-child{font-size:8px}.tile-progress{display:none}.level-detail{display:flex;flex-direction:column;align-items:stretch;padding:20px;gap:18px;border-radius:10px;margin-top:10px;scroll-margin-top:83px}.detail-kicker{font-size:9px}.detail-summary h3{font-size:20px;margin-top:6px}.detail-summary>p{font-size:12px}.prerequisite-line{font-size:10px;margin-top:10px}.detail-lessons{padding:14px 0 0;border-left:0;border-top:1px solid var(--line);border-right:0}.detail-lessons>p{font-size:9px}.detail-lessons>a{min-height:40px;font-size:11px;gap:9px}.detail-lessons 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@media(max-width:767px){.header-tools .icon-button{width:44px;min-width:44px}.launch-copy .button{white-space:normal;min-width:0;gap:7px}.launch-copy .button .icon{flex-shrink:0}.map-section>.section-heading>.text-link{top:-5px}.dashboard-copy{display:block;min-width:0}.dashboard-copy h2{font-size:18px;line-height:1.4}.dashboard-stats{flex-direction:row;gap:20px;margin-top:9px}.dashboard-stats span{gap:7px;white-space:nowrap}}
@media(max-width:767px){html[lang^=en] .launch-copy .button{min-height:48px}html[lang^=en] .map-section>.section-heading h2{font-size:21px}}
@media print{body{background:white;color:black}.lesson-article{padding:0;border:0;border-radius:0}.launch-hero,.progress-dashboard{break-inside:avoid}.lesson-content{font-size:11pt}.lesson-content code{color:#111;background:#f5f5f5}.lesson-content pre code{color:#111}.lesson-content h2{font-size:17pt}}