.academy-layout{grid-template-columns:320px minmax(0,1fr)}.top-link{font-size:16px;text-decoration:none;color:var(--muted)}.top-link:hover{color:var(--ink)}.academy-layout main{padding-top:28px}.sidebar-heading a{text-decoration:none}.sidebar-foot>a{display:block;margin:13px 0}.course-progress{margin:22px 7px 5px;font-size:14px;color:#bdc7b7}.course-progress .track{height:3px;background:#485244;margin:10px 0}.course-progress .track span{display:block;height:100%;background:#d6b17d}.course-group{margin:14px 0}.course-group summary{cursor:pointer;font-size:16px;display:flex;align-items:baseline;gap:8px;line-height:1.55;padding:7px 5px;color:#e0e5d9;list-style:none}.course-group summary::before{content:'+';color:#b4c1aa;font-family:var(--mono);min-width:8px}.course-group[open] summary::before{content:'−'}.course-group summary .module-index{color:#b3bfa7;font-family:var(--mono);font-size:14px}.course-lesson-link{display:flex;gap:7px;text-decoration:none;color:#c6d0be;font-size:16px;padding:8px 10px 8px 20px;margin:3px 0;border-left:1px solid #52604c;line-height:1.6}.course-lesson-link.active{color:#fff;background:#3b483c;border-left-color:#e0ad72}.course-lesson-link .lesson-mark{color:#deb47f;min-width:10px}.academy-hero{border-bottom:1px solid var(--line);padding:12px 0 27px;margin-bottom:25px}.academy-hero h1{max-width:700px;font-size:clamp(36px,4.6vw,63px);margin-bottom:18px}.academy-hero p{color:var(--muted);max-width:720px;line-height:1.9}.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.academy-meta{display:flex;gap:20px;flex-wrap:wrap;font-family:var(--mono);font-size:14px;letter-spacing:.5px;color:var(--muted);margin:0 0 24px}.course-stats{display:flex;flex-wrap:wrap;gap:25px;margin:23px 0 0}.course-stats strong{font-family:var(--mono);font-size:23px;font-weight:500;display:block;color:var(--ink)}.course-stats span{font-size:14px;color:var(--muted)}.section-intro{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin:30px 0 18px}.section-intro h2{font-family:Georgia,serif;font-size:26px;font-weight:400;margin:0;letter-spacing:-.5px}.section-intro p{color:var(--muted);font-size:18px;margin:0}.path-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}.path-card{border:1px solid var(--line);padding:20px;border-radius:5px;background:var(--surface);display:flex;flex-direction:column;align-items:flex-start}.path-card h3{font-size:18px;font-weight:500;margin:0 0 10px}.path-card p{font-size:18px;color:var(--muted);line-height:1.75;flex:1}.path-card .path-tag{font-family:var(--mono);font-size:14px;color:var(--accent);margin-bottom:9px}.module-list{border-top:1px solid var(--line)}.module-row{display:grid;grid-template-columns:36px minmax(0,1fr) 110px;gap:17px;padding:21px 0;border-bottom:1px solid var(--line);align-items:start}.module-row .number{font-family:var(--mono);font-size:18px;color:var(--accent);padding-top:4px}.module-row h3{margin:0 0 7px;font-size:18px;font-weight:500}.module-row h3 a{text-decoration:none}.module-row p{color:var(--muted);font-size:18px;margin:0;max-width:700px;line-height:1.75}.module-row .module-meta{text-align:right;font-size:14px;color:var(--muted);line-height:1.75}.module-row .module-meta span{display:block}.readable{max-width:850px}.lesson-intro{border-bottom:1px solid var(--line);padding:14px 0 25px;margin-bottom:25px}.lesson-intro h1{font-size:clamp(30px,3.5vw,45px);line-height:1.2;max-width:850px}.lesson-intro .academy-meta{margin:16px 0 0}.breadcrumbs{font-family:var(--mono);font-size:14px;color:var(--muted);letter-spacing:.5px;margin-bottom:22px;display:flex;gap:8px;flex-wrap:wrap}.breadcrumbs a{color:var(--green);text-underline-offset:4px}.lesson-objectives{background:var(--green-soft);border-left:2px solid var(--green);padding:17px 21px;margin-bottom:28px}.lesson-objectives h2{font-family:var(--mono);font-size:14px;letter-spacing:.04em;font-weight:500;margin:0 0 10px}.lesson-objectives ul{margin:0;padding-left:18px;font-size:18px;line-height:1.75}.lesson-body{font-size:18px;line-height:1.75}.lesson-body p{margin:0 0 18px}.lesson-body h2,.lesson-section h2{font-family:Georgia,serif;font-weight:400;font-size:25px;letter-spacing:-.4px;margin:30px 0 15px}.lesson-steps{padding-left:24px}.lesson-steps li{padding-left:5px;margin:12px 0;font-size:18px;line-height:1.75}.lesson-tools{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0}.exercise-box{background:var(--surface);border:1px solid var(--line);border-radius:5px;padding:22px;margin:24px 0}.exercise-box h2{margin:0 0 12px;font-size:24px;font-family:Georgia,serif;font-weight:400}.exercise-box h3{font-size:16px;margin:20px 0 9px}.exercise-box p,.exercise-box li{font-size:18px;line-height:1.75}.exercise-box ul{padding-left:20px}.self-check-list{padding:0;list-style:none}.self-check-list label{display:flex;align-items:flex-start;gap:10px;margin:11px 0;font-size:16px;line-height:1.75}.self-check-list input{margin-top:5px;accent-color:var(--green);min-width:15px;min-height:15px}.quiz{margin:27px 0}.quiz fieldset{border:1px solid var(--line);border-radius:5px;background:var(--surface);padding:20px;margin:15px 0}.quiz legend{font-size:16px;font-weight:600;line-height:1.7;padding:0 8px;max-width:100%}.quiz label{display:flex;gap:9px;align-items:flex-start;font-size:16px;line-height:1.75;margin:10px 0}.quiz input{accent-color:var(--accent);margin-top:5px}.quiz-feedback{font-size:16px;line-height:1.75;padding:12px 15px;background:var(--green-soft);margin-top:13px;border-radius:3px}.quiz-feedback.wrong{background:var(--accent-soft)}.quiz-summary{font-family:var(--mono);font-size:16px;margin:14px 0}.completion-row{display:flex;flex-wrap:wrap;align-items:center;gap:15px;padding:22px 0;border-top:1px solid var(--line);margin-top:25px}.completion-row p{font-size:18px;color:var(--muted);max-width:500px;margin:0}.lesson-nav{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding-top:24px;margin:25px 0}.lesson-nav a{max-width:47%;font-size:16px;color:var(--green);text-decoration:none;line-height:1.7}.lesson-nav small{font-size:14px;font-family:var(--mono);display:block;color:var(--muted);margin-bottom:5px}.repair-case{border-bottom:1px solid var(--line);padding:15px 0}.repair-case h3{font-size:18px;font-weight:500;margin:0 0 8px}.repair-case p{font-size:18px;line-height:1.75;color:var(--muted);margin:6px 0}.repair-case strong{color:var(--ink)}.notebook textarea{width:100%;min-height:120px;padding:14px;border:1px solid var(--line);background:var(--surface);border-radius:5px;font:18px/1.75 var(--sans);resize:vertical}.source-list{padding-left:20px;font-size:18px;line-height:1.75}.source-list a{color:var(--green);text-underline-offset:3px}.download-card{border:1px solid var(--line);background:var(--surface);padding:22px;border-radius:5px}.download-card h3{font-size:18px;font-weight:500;margin:0 0 10px}.download-card p{font-size:18px;line-height:1.75;color:var(--muted)}.download-links{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0}.download-links a{font-family:var(--mono);font-size:16px}.status-note{border-left:2px solid var(--accent);padding-left:10px;font-size:16px!important}.download-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:16px}.worksheet-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px}.worksheet-link{border-bottom:1px solid var(--line);padding:15px 0;text-decoration:none;color:var(--green);font-size:16px}.worksheet-link span{display:block;font-size:14px;color:var(--muted);margin-top:6px}.glossary dt{font-size:18px;font-weight:600;margin-top:22px}.glossary dd{font-size:18px;color:var(--muted);line-height:1.75;margin:7px 0}.studio-select{width:100%;max-width:600px;padding:11px;border:1px solid var(--line);background:var(--surface);border-radius:4px;margin:15px 0}.studio-card{padding:22px;border:1px solid var(--line);border-radius:5px;background:var(--surface);margin:16px 0}.studio-card h3{font-family:Georgia,serif;font-size:22px;font-weight:400;margin:0 0 10px}.studio-card li{font-size:18px;line-height:1.75;margin:6px 0}.studio-card input[type=url]{width:100%;padding:10px;border:1px solid var(--line);background:var(--paper);border-radius:4px;font-size:16px;margin:8px 0}.video-companion{border:1px solid var(--line);background:var(--surface);padding:18px;margin:22px 0}.video-companion video,.video-companion iframe{width:100%;aspect-ratio:16/9;border:0}.video-companion a{font-size:16px;color:var(--green)}.progress-card{padding:18px;border-bottom:1px solid var(--line);font-size:16px}.progress-card strong{display:block;margin-bottom:6px}.progress-card p{color:var(--muted);white-space:pre-wrap;font-size:18px;line-height:1.75}.empty-state{padding:30px 0;color:var(--muted);font-size:18px}#course-toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);background:var(--rail);color:white;padding:12px 20px;border-radius:4px;opacity:0;pointer-events:none;transition:opacity .2s;font-size:16px;z-index:20}#course-toast.show{opacity:1}.site-foot{border-top:1px solid var(--line);padding:23px 0;font-family:var(--mono);font-size:14px;color:var(--muted);margin-top:35px;display:flex;justify-content:space-between;gap:15px}.print-only{display:none}.self-check-note{font-size:16px;color:var(--muted)}
@media(min-width:1200px){.academy-layout .sidebar{position:sticky;top:0;max-height:calc(100vh - 5px);overflow:auto}.academy-layout{align-items:start}.academy-layout main{padding-left:45px;padding-right:45px}}
@media(max-width:1000px){.academy-layout{grid-template-columns:280px minmax(0,1fr)}.academy-layout main{padding-left:25px;padding-right:25px}.mast-right{gap:18px}.path-grid{grid-template-columns:1fr 1fr}.module-row{grid-template-columns:25px minmax(0,1fr)}.module-row .module-meta{grid-column:2;display:flex;gap:15px;text-align:left}.module-row .module-meta span{display:inline}.section-intro{align-items:flex-start;flex-direction:column;gap:5px}}
@media(max-width:700px){.academy-layout{display:block}.academy-layout .sidebar{display:none}.academy-layout .sidebar.open{display:block}.academy-layout .mobile-nav{display:inline-flex}.masthead{padding:0 16px;height:78px}.mast-right{gap:13px}.top-link{font-size:16px}.brand{font-size:21px}.brand small{font-size:14px}.brand-mark{font-size:43px}.academy-layout main{padding:24px 19px}.academy-hero h1{font-size:40px}.academy-hero p{font-size:18px}.lesson-body{font-size:18px}.academy-layout .sidebar-foot{display:block}.path-grid{grid-template-columns:1fr}.download-grid{grid-template-columns:1fr}.lesson-intro h1{font-size:33px}.lesson-objectives{padding:16px}.exercise-box{padding:18px}.course-stats{gap:20px}.site-foot{flex-direction:column}.academy-layout~.mobile-nav{display:inline-flex}}
@media(max-width:400px){.mast-right .top-link:first-child{display:none}.brand small{letter-spacing:.7px}.mast-right{gap:10px}.top-link{font-size:16px}}
@media(max-width:700px){.masthead .mobile-nav{display:inline-flex}}
/* Course navigation and lesson text keep their readable measure. */
.course-group summary,.course-lesson-link{overflow-wrap:anywhere;min-width:0}.course-group summary .module-index,.course-lesson-link .lesson-mark{flex-shrink:0}.course-group summary{align-items:flex-start}.module-row .module-meta{overflow-wrap:anywhere}.lesson-intro .academy-meta{flex-wrap:wrap}.lesson-body,.lesson-steps li,.exercise-box p,.exercise-box li,.repair-case p{line-height:1.75}.self-check-list label,.quiz label{min-width:0;overflow-wrap:anywhere}.self-check-list input,.quiz input{flex-shrink:0}.lesson-nav{flex-wrap:wrap}.source-list{line-height:1.75}.source-list li{margin-bottom:10px}
@media print{.academy-layout .sidebar,.masthead,.lesson-nav,.hero-actions,.completion-row,.quiz button,.lesson-tools,.studio-controls,#course-toast,.site-foot{display:none!important}.academy-layout{display:block}.academy-layout main{padding:0!important;max-width:none}.readable{max-width:none}.lesson-intro h1{font-size:28px}.lesson-body{font-size:11pt}.print-only{display:block}.exercise-box,.quiz fieldset{break-inside:avoid}.notebook textarea{border:1px solid #aaa;height:100px}.page-break{break-before:page}body{background:white}}