@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&display=swap');
:root{font-family:Manrope,Arial,sans-serif;font-size:16px;color:#223440;background:#f4f7f9}*{box-sizing:border-box}body{margin:0}a{color:#a44b2a;text-underline-offset:3px}button{font:inherit}.sidebar{position:fixed;inset:0 auto 0 0;width:260px;background:#142b38;color:#fff;padding:32px 22px;display:flex;flex-direction:column;z-index:2}.brand{display:flex;gap:14px;align-items:center;color:white;text-decoration:none;font-size:14px;font-weight:800;letter-spacing:1px}.brand b{font-size:32px;color:#ff8656;letter-spacing:-3px}.brand b span{font-size:19px}.nav-caption{font-size:11px;letter-spacing:1.3px;color:#99afbb;margin:48px 0 18px;line-height:1.8}#projects{display:grid;gap:9px}#projects a{display:flex;gap:13px;align-items:center;color:#b6c6cf;text-decoration:none;padding:17px 13px;border-radius:7px;font-size:14px;line-height:1.4;border:1px solid transparent}#projects a strong{color:#f79469;font-size:18px}#projects a[aria-current=page]{color:#fff;background:#294553;border-color:#3e5c6c;border-left:3px solid #ff8656}#projects a:hover{background:#203c4b}.sidebar-note{margin-top:auto;border-top:1px solid #3a505e;padding-top:24px;color:#a8bdc8;font-size:13px;line-height:1.8}.sidebar-note>span{font-size:11px;letter-spacing:1px}.sidebar-note code{display:block;color:#ffd5c3;font:14px Manrope,Arial,sans-serif}.sidebar-note code span{color:#a8bdc8}main{margin-left:260px;padding:0 46px;max-width:1700px}.topbar{display:flex;justify-content:space-between;gap:15px;padding:25px 0;border-bottom:1px solid #dbe4e9;font-size:11px;color:#6b808e;letter-spacing:1px}.project-header{padding:34px 0 25px}.eyebrow{font-size:12px;letter-spacing:1.5px;font-weight:800;color:#b45932}.project-header h1{font-size:clamp(30px,3.2vw,46px);letter-spacing:-1.5px;line-height:1.2;margin:12px 0}.project-header p{max-width:820px;line-height:1.7;color:#677e8c}.meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.meta span{font-size:12px;border:1px solid #d1dfe7;border-radius:24px;padding:8px 13px;background:#fff}.section-nav{display:flex;gap:24px;flex-wrap:wrap;border-bottom:1px solid #dbe4e9;padding:0 0 20px;margin:0 0 28px}.section-nav a{color:#496574;text-decoration:none;font-size:14px}.section-nav a b{color:#b45932;margin-right:7px}.drawing-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(260px,1fr);gap:24px;align-items:start}.drawing-sheet{background:white;border:1px solid #d7e1e8;border-radius:10px;overflow:hidden;margin:0;padding:18px}.drawing-sheet img{display:block;width:100%;max-height:460px;object-fit:contain;min-height:200px}.drawing-sheet figcaption{font-size:12px;color:#728590;line-height:1.6;padding-top:14px}.drawing-sheet figcaption a{color:#597887}.spec-card{background:#fff;border:1px solid #d7e1e8;border-radius:10px;padding:22px}.spec-card h2{font-size:18px;margin:0 0 14px}.spec-card dl{margin:0}.spec-card dl div{padding:10px 0;border-bottom:1px solid #e8edf0;display:flex;gap:15px;justify-content:space-between;font-size:14px;line-height:1.5}.spec-card dt{color:#70828c}.spec-card dd{font-weight:700;margin:0;text-align:right}.drawing-note{font-size:13px;line-height:1.7;color:#6a7e89;margin:18px 0 0}.section{margin-top:40px;scroll-margin-top:20px}.section-title{display:flex;align-items:baseline;gap:15px;margin:0 0 20px}.section-title>span{font-size:15px;color:#b45932;font-weight:800}.section-title h2{margin:0;font-size:26px;letter-spacing:-.6px}.prep{padding:20px 24px;background:#e7eef3;border-left:3px solid #537e94;font-size:15px;line-height:1.8;margin-bottom:22px}.prep strong{display:block;color:#2c4b5d;margin-bottom:5px}.steps{list-style:none;padding:0;margin:0;display:grid;gap:16px}.step{display:grid;grid-template-columns:42px 1fr;gap:18px;background:white;border:1px solid #dce5eb;border-radius:9px;padding:25px}.step-number{display:grid;place-items:center;background:#fff0e8;color:#ab4c25;border-radius:50%;width:36px;height:36px;font-size:13px;font-weight:800}.step h3{font-size:19px;line-height:1.5;margin:1px 0 9px}.step p{margin:8px 0;color:#4d6472;line-height:1.8;font-size:15px}.command{background:#eff4f7;border:1px solid #e1e9ef;padding:9px 13px;border-radius:5px;font-size:13px;line-height:1.8;color:#365c73;overflow-wrap:anywhere;margin:12px 0}.step .expected{border-top:1px solid #edf1f3;padding-top:12px;color:#527162;font-size:14px}.step .expected b{color:#345e49}.check-block{background:#eaf2f3;padding:25px;border-radius:8px;margin-top:22px}.check-block h3{margin:0 0 16px;font-size:19px}.checklist{display:grid;gap:12px}.checklist label{display:flex;gap:10px;align-items:flex-start;font-size:15px;line-height:1.6}.checklist input{width:18px;height:18px;accent-color:#2d647c;flex-shrink:0;margin-top:4px}.check-block p{font-size:13px;color:#637c89;line-height:1.7}.independent{margin-top:20px;background:#fff4eb;border-left:3px solid #e68756;padding:22px}.independent h3{margin:0 0 9px;font-size:18px}.independent p{margin:0;font-size:15px;line-height:1.8}.resource-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.resource{display:block;padding:20px;background:#fff;border:1px solid #dbe4ea;border-radius:8px;text-decoration:none;color:#233c4d}.resource:hover{border-color:#c8815a}.resource small{color:#b45932;font-size:11px;letter-spacing:1px}.resource strong{display:block;margin:9px 0;font-size:16px;line-height:1.5}.resource span{display:block;font-size:14px;line-height:1.6;color:#6a7e8b}.video-details{margin-top:20px;border:1px solid #d7e1e7;border-radius:8px;padding:18px;background:#fff}.video-details summary{cursor:pointer;font-weight:700;font-size:15px;line-height:1.6}.video-details iframe{display:block;width:100%;max-width:760px;aspect-ratio:16/9;border:0;margin-top:18px;background:#142b38}.video-details p{font-size:13px;line-height:1.7;color:#627988}.next-project{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:30px 0;padding-top:24px;border-top:1px solid #dbe4e9;font-size:14px}.next-project a{background:#ee8354;color:#142b38;border-radius:6px;text-decoration:none;font-weight:800;padding:13px 18px}.next-project span{color:#7c8d97}footer{font-size:12px;line-height:1.8;color:#7a8d98;border-top:1px solid #dce4e9;padding:24px 0 32px}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid #e88354;outline-offset:4px}@media(max-width:1150px){.sidebar{width:225px;padding:28px 16px}main{margin-left:225px;padding:0 28px}.drawing-layout{grid-template-columns:1fr}.spec-card dl{display:grid;grid-template-columns:1fr 1fr;gap:0 24px}.resource-grid{grid-template-columns:1fr}}@media(max-width:760px){.sidebar{position:static;width:auto;padding:20px}.nav-caption,.sidebar-note{display:none}#projects{grid-template-columns:1fr 1fr;margin-top:18px;gap:6px}#projects a{padding:11px 9px;font-size:13px}#projects a strong{font-size:15px}main{margin:0;padding:0 20px}.topbar{padding:18px 0;font-size:10px;letter-spacing:.3px}.topbar span:last-child{display:none}.project-header{padding:25px 0 20px}.project-header h1{font-size:32px}.project-header p{font-size:15px}.section-nav{gap:15px}.section-nav a{font-size:13px}.drawing-sheet{padding:12px}.drawing-sheet img{max-height:360px;min-height:120px}.spec-card dl{grid-template-columns:1fr}.step{grid-template-columns:30px 1fr;padding:18px 14px;gap:12px}.step-number{width:28px;height:28px;font-size:11px}.step h3{font-size:17px}.step p{font-size:15px}.command{font-size:12px;padding:8px}.section-title h2{font-size:23px}.section{margin-top:30px}.check-block,.independent{padding:20px}.next-project{flex-direction:column;align-items:stretch}.next-project a{text-align:center}}

/* Навигация по двадцати последовательным работам */
.sidebar{overflow-y:auto}.nav-caption{margin-top:26px;font-size:12px}#projects{gap:4px}#projects a{padding:10px 12px}.level-label{font-size:12px;line-height:1.5;color:#9ab3c1;margin:18px 10px 6px;grid-column:1/-1}.sidebar-note{margin-top:24px;flex-shrink:0}.step p{font-size:16px}@media(max-width:760px){#projects{display:flex;overflow-x:auto;gap:8px;margin-top:16px;padding-bottom:10px}#projects a{flex:0 0 190px;font-size:14px}#projects .level-label{display:none}.sidebar{overflow:visible}.brand{position:static}}

.tool-figure{margin:24px 0;background:#f6f9fb;border:1px solid #d7e1e8;border-radius:8px;padding:16px;min-width:0}.tool-figure-title{font-size:14px;font-weight:800;color:#365c73;margin-bottom:12px}.tool-figure img{display:block;width:100%;height:auto;max-height:440px;object-fit:contain;background:white}.tool-figure figcaption{font-size:14px;line-height:1.7;padding-top:14px}.tool-figure figcaption strong{display:block}.tool-figure ul{padding-left:20px;margin:12px 0}.tool-figure li{margin:6px 0}.tool-figure figcaption p{font-size:14px}.tool-figure figcaption a{font-size:13px}@media(max-width:760px){.tool-figure{padding:10px;margin-left:-5px;margin-right:-5px}}

.tool-name{display:inline-flex;align-items:center;gap:6px;vertical-align:middle;white-space:nowrap}.native-tool-icon{display:inline-block;flex-shrink:0;background-repeat:no-repeat;vertical-align:middle;border-radius:2px}.command{font-size:14px;line-height:2.1}.modeling-plan{margin:20px 0 26px;padding:22px 24px;background:white;border:1px solid #d7e1e8;border-radius:8px;line-height:1.8}.modeling-plan h3{font-size:19px;margin:0 0 10px}.modeling-plan p{margin:10px 0}.modeling-plan .pitfall{border-left:3px solid #e68756;padding-left:16px;color:#765237}.step>div{min-width:0}.tool-figure img{max-height:600px}.tool-figure figcaption .native-tool-icon{margin-right:2px}@media(max-width:760px){.modeling-plan{padding:18px}.command{font-size:13px}.tool-name{gap:4px}}
.startup-steps{padding-left:1.4rem;margin:1rem 0}.startup-steps li{margin:0 0 1rem;padding-left:.35rem}.startup-steps li b{display:inline}

.action-guide{border-left:3px solid #d56b32;background:#f4f8fa;padding:16px 20px;margin:16px 0}.action-guide h4{margin:0 0 12px;font-size:16px}.action-guide ol{padding-left:22px;margin:0}.action-guide li{margin:10px 0;line-height:1.75}.spec-card dt{max-width:65%}

/* Читаемые отдельные виды */
.drawing-layout{grid-template-columns:1fr}.drawing-views{display:grid;grid-template-columns:1fr;gap:22px;width:100%;max-width:960px;margin-inline:auto}.drawing-sheet .drawing-views img,.tool-figure .drawing-views img{width:100%;height:auto;max-height:none;min-height:0}.drawing-sheet .drawing-views img{border-bottom:1px solid #d7e1e8;padding-bottom:12px}.drawing-layout .spec-card{max-width:960px;width:100%;margin-inline:auto}.drawing-layout .spec-card dl{display:grid;grid-template-columns:1fr 1fr;gap:0 28px}@media(max-width:760px){.drawing-layout .spec-card dl{grid-template-columns:1fr}.drawing-views{gap:14px}}

.lesson-context{max-width:960px;width:100%;margin-inline:auto;padding:20px 24px;background:#fff;border:1px solid #d7e1e8;border-left:3px solid #537e94;border-radius:8px}.lesson-context h2{font-size:18px;margin:0 0 10px}.lesson-context p{font-size:16px;line-height:1.8;color:#405966;margin:0}@media(max-width:760px){.lesson-context{padding:18px}}