@charset "UTF-8";:root{font-family:Segoe UI,Tahoma,Arial,sans-serif;color:#253e34;background:#f5f4ee;font-synthesis:none;font-weight:400;line-height:1.7;font-size:16px}*{box-sizing:border-box}body{margin:0}button,textarea{font:inherit}button{cursor:pointer;color:inherit;background:#fffdf7;border:1px solid #cdd3c6;border-radius:5px;padding:10px 17px;min-height:44px;transition:background .18s,transform .18s}button:hover:not(:disabled){background:#e9ede3}button:active:not(:disabled){transform:translateY(1px)}button:disabled{opacity:.45;cursor:default}button[aria-pressed=true]{background:#365b4d;color:#fff;border-color:#365b4d}button:focus-visible,a:focus-visible,svg:focus-visible,textarea:focus-visible{outline:3px solid #b77b44;outline-offset:4px}main:focus{outline:none}header{max-width:1440px;margin:auto;display:flex;align-items:center;gap:32px;padding:25px 5%;border-bottom:1px solid #d9ddcf}.brand{display:flex;align-items:center;gap:10px;border:0;background:none;padding:0;font-size:30px;font-weight:700}.brand small{font-size:9px;letter-spacing:2px;max-width:60px;line-height:1.5;text-align:start}.brand-icon{font-size:38px;font-weight:400}nav{display:flex;gap:6px;margin-inline:auto}nav button{border:0;background:none;font-size:14px;padding:8px 12px;color:#626e62}nav button[aria-current=page]{color:#294c3d;box-shadow:inset 0 -2px #355b49;border-radius:0}.language{font-size:13px;border-color:#bac5b5;background:none}main{max-width:1280px;margin:auto;padding:0 32px}.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:7%;align-items:center;padding:68px 0 65px}.eyebrow{font-size:11px;color:#747f6e;letter-spacing:1.7px;font-weight:600}.hero h1{font-size:clamp(42px,4.7vw,69px);line-height:1.35;letter-spacing:-2px;margin:20px 0 22px;font-weight:600}.hero h1 em{font-style:normal;color:#7e8b6f}.hero-copy>p{max-width:430px;font-size:18px;color:#6d7669;line-height:1.9}.actions{display:flex;align-items:center;gap:15px;margin-top:30px}.primary{background:#315443;color:#fff;border-color:#315443}.primary:hover:not(:disabled){background:#244334}.text-button{border:0;background:none}.hero-meta{display:flex;gap:33px;margin-top:39px;font-size:11px;color:#7d8777}.hero-sheet{background:#eef0e7;border:1px solid #d2d8c7;padding:21px 24px 18px;position:relative;transform:rotate(-2deg);box-shadow:10px 13px #e8e8dd}.sheet-label,.sheet-foot{display:flex;justify-content:space-between;direction:ltr;font-size:10px;color:#73806b;letter-spacing:1px}.sheet-label{border-bottom:1px solid #ccd3c1;padding-bottom:15px}.sheet-foot{border-top:1px solid #ccd3c1;padding-top:15px}.hero-model svg{display:block;width:100%;height:auto}.stamp{position:absolute;bottom:54px;inset-inline-end:-18px;border:1px solid #b1bc9d;background:#f5f4ec;padding:7px 15px;font-size:11px;transform:rotate(5deg)}h1,h2,h3,p{overflow-wrap:anywhere}h2{font-size:27px;font-weight:600;margin:7px 0 16px;line-height:1.5}h3{font-weight:600}p{color:#65715f}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:20px}.section-heading>span{color:#7a8473;font-size:12px}.paths{padding:24px 0 40px;border-top:1px solid #d7dccd}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:18px}.path-card{text-align:start;background:transparent;border:1px solid #d5dbcd;border-radius:0;padding:22px 24px;display:flex;flex-direction:column}.card-top{display:flex;justify-content:space-between;color:#8b9581;font-size:12px}.card-icon{font-size:38px;line-height:1.2;color:#6b7e60}.path-card h3{font-size:24px;margin:17px 0 5px}.path-card p{font-size:14px;line-height:1.9;flex:1;margin:5px 0 24px}.card-bottom{border-top:1px solid #d9dece;padding-top:15px;display:flex;justify-content:space-between;align-items:center}.card-bottom small{font-size:11px;color:#7a8570}.progress-strip{border:1px solid #d6dccb;background:#e9ecdf;padding:24px 30px;display:flex;align-items:center;justify-content:space-between;gap:20px}.progress-strip h3{margin:0}.progress-strip p{font-size:12px;margin:3px 0}.progress-strip strong{font-size:26px;direction:ltr;display:block}.progress-strip span{font-size:11px;color:#6f7c65}.disclaimer{display:flex;align-items:flex-start;gap:15px;margin:36px 0 24px;border-top:1px solid #d8dece;padding:20px 0 0;color:#7c8772}.disclaimer p{margin:0;font-size:12px;line-height:1.9}footer{display:flex;align-items:center;justify-content:space-between;gap:15px;border-top:1px solid #d8dece;padding:22px max(32px,calc((100vw - 1216px)/2));font-size:14px}footer small{font-size:11px;color:#7b8574}footer>span:last-child{font-size:9px;letter-spacing:1.5px}footer button{font-size:11px;background:none;border:0}.page-heading{padding:45px 0 25px}.page-heading h1{font-size:clamp(30px,4vw,46px);font-weight:600;margin:10px 0}.page-heading p{max-width:750px;margin:0}.work-grid{display:grid;grid-template-columns:1fr 1fr;gap:25px;align-items:start}.panel{padding:26px;border:1px solid #d3dac9;background:#fafaf5;min-width:0}.panel p{font-size:15px;line-height:1.9}.toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:14px 0}.toolbar button{font-size:13px;padding:7px 13px}.toolbar strong{margin-inline-end:auto}.model svg{width:100%;display:block;-webkit-user-select:none;user-select:none;overflow:hidden}.model small,.drawing small{font-size:12px;color:#75806d;display:block}.lesson-diagram{width:100%;background:#f0f1e8}.panel progress{width:100%;height:4px;accent-color:#52735b}.drawing{border:1px solid #d3dac9;background:#fafaf5;padding:16px;min-width:0}.drawing .toolbar{margin:0 0 14px}.drawing-surface{width:100%;display:block;border:1px solid #d6dacd;touch-action:none;-webkit-user-select:none;user-select:none}.drawing small{margin-top:14px}.pen-cursor{display:none}.drawing-surface:focus .pen-cursor{display:block}.lab-grid{grid-template-columns:330px 1fr}.choice-list{display:grid;gap:12px}.choice-list button{display:flex;justify-content:space-between;align-items:center;text-align:start;padding:15px;gap:16px}.choice-list span{font-size:13px}.model-panel{padding:20px}.exercise-tabs{margin:0 0 20px}.answers{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:25px 0}.answers button{padding:10px;font-size:13px}.answers svg{width:100%;display:block;max-height:90px}.feedback{margin-top:24px;background:#eaf0e4;border:1px solid #c3d0b9;padding:20px}.feedback h3{margin:0}.answer-model{width:180px;display:block;margin:auto}.creative-steps{padding-inline-start:25px}.creative-steps li{padding-inline-start:10px;margin-bottom:23px}.creative-steps h3{margin:0}.creative-steps p{margin:5px 0}.notice{background:#edeadd;border-inline-start:3px solid #9c885c;padding:14px;font-size:14px}.panel textarea{width:100%;min-height:320px;border:1px solid #b9c6af;background:#fffefa;padding:18px;color:#294735;resize:vertical;line-height:1.9}.panel textarea+small{display:block;color:#7c8871;font-size:11px;margin-bottom:15px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#253e347a;display:flex;align-items:center;justify-content:center;padding:20px;z-index:5}.modal{max-width:520px;background:#fafaf4;padding:30px;border:1px solid #c7d0bd;box-shadow:0 20px 60px #243b3433}.modal button{margin-inline-end:10px}.danger{background:#844b3a;color:#fff;border-color:#844b3a}.skip{position:fixed;top:-100px;right:20px;z-index:10;background:#fff;padding:15px;color:#294735}.skip:focus{top:10px}@media(min-width:1500px){.hero{padding-top:80px;padding-bottom:85px}}@media(max-width:950px){header{gap:15px;flex-wrap:wrap;padding:18px 24px}nav{order:3;width:100%;justify-content:center;flex-wrap:wrap}.language{margin-inline-start:auto}.hero{gap:30px}.hero h1{font-size:46px}.cards{gap:12px}.path-card{padding:18px}.path-card h3{font-size:21px}.lab-grid{grid-template-columns:1fr 1.4fr}.progress-strip{flex-wrap:wrap}footer{flex-wrap:wrap}.work-grid{gap:16px}.panel{padding:18px}}@media(max-width:650px){main{padding:0 20px}header{padding:15px 20px;gap:10px}.brand{font-size:27px}nav{gap:1px;justify-content:space-between}nav button{font-size:12px;padding:7px 5px}.hero{grid-template-columns:1fr;padding:35px 0 40px;gap:35px}.hero h1{font-size:46px}.hero-copy>p{font-size:16px}.hero-meta{margin-top:24px}.hero-sheet{max-width:440px;width:95%;margin:0 auto}.hero-model svg{max-height:300px}.section-heading{align-items:start}.section-heading>span{display:none}.cards,.work-grid,.lab-grid{grid-template-columns:1fr}.cards{gap:14px}.path-card{padding:21px}.path-card h3{margin-top:7px}.card-icon{font-size:30px}.progress-strip{padding:20px}.progress-strip>div:first-child{width:100%}.progress-strip button{font-size:13px}.page-heading{padding:30px 0 20px}.panel{padding:18px}.answers{gap:7px}.answers button{padding:7px}.toolbar button{padding:7px 10px}.drawing{padding:12px}.drawing .toolbar strong{width:100%}footer{padding:20px}footer>span:first-child{width:100%}.disclaimer{margin-top:28px}.panel textarea{min-height:260px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}.photo-home-banner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 26px;background:#eeeade;border:1px solid #d8d1bd;margin-bottom:26px}.photo-home-banner h3{margin:0 0 5px}.photo-home-banner p{font-size:13px;margin:0}.photo-home-banner button{white-space:nowrap;font-size:13px}@media(max-width:600px){.photo-home-banner{flex-direction:column;align-items:start;padding:19px}}.studio-header{max-width:1560px;gap:15px;padding:7px clamp(12px,3vw,44px)}.studio-header .brand{font-size:24px;gap:7px}.studio-header .brand-icon{font-size:28px}.studio-header nav{min-width:0;gap:1px;overflow-x:auto;scrollbar-width:thin}.studio-header nav button{white-space:nowrap;padding-inline:8px}.studio-header nav button:focus-visible,.section-unit-tabs button:focus-visible{outline-offset:-4px}.wide-workspace{max-width:1536px;padding-inline:clamp(12px,2.3vw,34px)}.hero:has(.home-drawing){padding-block:clamp(18px,4vw,60px);gap:clamp(16px,4vw,65px)}.hero:has(.home-drawing) .hero-sheet{padding:0;transform:none;box-shadow:0 12px 25px #3d523211;border-radius:8px;overflow:hidden}.home-drawing{display:block;width:100%;height:auto}.home-drawing-label{display:flex;align-items:baseline;justify-content:space-between;padding:9px 14px;border-block-end:1px solid #d2d8c7;gap:8px}.home-drawing-label span{font-size:12px;color:#536752}@media(max-width:950px){.studio-header{gap:3px 10px}.studio-header nav{overflow-x:auto;justify-content:start;flex-wrap:nowrap;scrollbar-width:thin;margin:0}.studio-header nav button{flex:0 0 auto}}@media(max-width:650px){.studio-header .brand small{display:none}.hero:has(.home-drawing) .hero-sheet{grid-row:1;max-width:none;width:100%}.hero:has(.home-drawing) h1{font-size:39px;margin-block:4px 12px}}.learning{padding:42px 0 64px}.learning .page-heading{padding-top:0}.learning-journey,.learning-lessons{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}.learning-journey button{flex:1;min-width:180px;text-align:start;padding:18px;border-block-end:3px solid #d9ddcf}.learning-journey [aria-current],.learning-lessons [aria-pressed=true]{background:#e6ecdf;border-color:#33594a;color:#234638}.learning-lessons button{display:flex;align-items:center;gap:14px;padding:18px;flex:1;min-width:160px}.learning-lessons span{color:#a2603d;font-family:monospace}.learning .work-grid{align-items:start}.learning .panel{margin-bottom:18px}.learning-step{min-height:95px;line-height:1.9}.learning textarea{display:block;width:100%;min-height:100px;margin:10px 0}.learning .drawing{margin-bottom:16px}.learning-building{height:410px;background:#eff0e8;border:1px solid #d8ddce}.learning-building canvas{width:100%;height:100%;display:block}.learning-options{display:grid;gap:12px;margin:20px 0}.learning-options button{padding:18px;text-align:start}.workspace-status{padding:12px 18px;background:#ebefe3;border-inline-start:3px solid #637e59;min-height:48px}.workspace-status[role=alert]{background:#fff0e3;border-color:#a85031}.version-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:14px 0;border-bottom:1px solid #dce0d2}.version-row span{flex:1;min-width:160px}.project-file{display:flex;flex-direction:column;gap:8px;padding:14px;border:1px solid #c9d0bf;max-width:100%}.project-file input{max-width:100%}.reference-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.reference-grid .panel{padding:20px}.reference-grid .lesson-diagram{width:100%}.learning a{color:#315c49;text-decoration:underline;text-underline-offset:4px}header nav{flex-wrap:wrap}header{gap:12px}header nav button{padding:9px 7px;font-size:12px}.learning :focus-visible{outline:3px solid #b66a43;outline-offset:3px}@media(max-width:760px){.learning{padding-top:24px}.learning-building{height:300px}.reference-grid{grid-template-columns:1fr}.learning-step{min-height:0}.learning-journey button{min-width:140px;padding:12px}.learning-lessons button{min-width:140px}.learning .panel{padding:18px}.learning .work-grid{grid-template-columns:1fr}.learning .toolbar{flex-wrap:wrap}header nav{justify-content:flex-start}.version-row button{flex:1}}.learning-review{margin-top:16px;border-top:1px solid #cbd6c4;padding-top:10px}.learning-review summary,.case-library summary{cursor:pointer;font-weight:650}.learning-review input,.shelter-field select,.shelter-presentation select{max-width:100%;min-height:44px;font:inherit;padding:6px;border:1px solid #acbeaa;background:#fffef6;color:inherit}.learning-review input{width:100px}.shelter-brief [aria-current]{background:#e1eadb;border-color:#496b54}.shelter-brief li{margin:4px 0}.shelter-brief li button{min-width:44px;padding:4px}.shelter-field{display:grid;gap:4px;margin-top:10px}.shelter-brief .shelter-field textarea{min-height:90px}.shelter-presentation figure{min-width:0;margin:0}.shelter-presentation p{white-space:pre-wrap;overflow-wrap:anywhere}.shelter-sketch{display:block;width:100%;height:auto;border:1px solid #cbd6c4}.case-library{margin-block:20px}.case-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,295px),1fr));gap:12px}.case-grid h3{margin-top:0}.case-date{display:block;margin-top:8px}.review-method{display:inline-block;margin-top:10px;border-inline-start:3px solid #446d59;padding:3px 8px;background:#e6efe4}.shelter-self,.shelter-teacher{min-inline-size:0;border:1px solid #b9cbb7;padding:8px 12px;margin:12px 0}.shelter-self legend,.shelter-teacher legend{font-weight:700;padding-inline:5px}.shelter-teacher{background:#f2eee2;border-color:#cec3a4}.shelter-board-note{display:block;margin-top:8px;color:#465e4e}.proportion-graph{width:100%;max-width:390px;height:auto;display:block;border:1px solid #b8cbb5;touch-action:none;cursor:crosshair;-webkit-user-select:none;user-select:none}.proportion-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-block:10px}.proportion-fields label{min-width:0;font-size:.9rem}.proportion-fields bdi{padding-inline:4px;color:#3e604a}.proportion-fields input{display:block;width:100%;min-height:36px;accent-color:#396046;direction:ltr}.proportion-result{border-inline-start:3px solid #a05d38;padding:6px 10px;margin-top:9px;background:#edf0e1}.proportion-result p{margin:0}.studio-home{padding-block:clamp(18px,4vw,48px) 18px}.studio-home-hero{display:grid;grid-template-columns:1.1fr 1fr;align-items:center;gap:clamp(24px,6vw,100px)}.studio-home-intro{min-width:0}.studio-home-label{color:#496c54;font-weight:650;margin:0 0 10px}.studio-home-intro h1{max-width:15ch;margin:0;line-height:1.27;font-size:clamp(40px,4.8vw,68px);color:#253e34;font-weight:650}.studio-home-summary{margin:14px 0 0;color:#425b4a;font-size:clamp(15px,1.5vw,19px)}.studio-start{margin-block-start:20px}.studio-start button{max-width:100%;text-align:start}.studio-home-plate{margin:0;border:1px solid #c7d3bf;border-radius:10px;overflow:hidden;background:#fffef7;box-shadow:0 14px 30px #2b493410}.studio-home-plate figcaption{display:flex;justify-content:space-between;align-items:baseline;flex-wrap:wrap;gap:5px 12px;padding:10px 16px;background:#e8eee2;border-block-start:1px solid #c7d3bf;font-size:13px;color:#385648}.studio-paths{margin-block:clamp(14px,2vw,24px) 0}.studio-path-grid{display:grid;gap:7px}.studio-path-grid button{display:grid;grid-template-columns:32px minmax(0,1fr) auto;gap:9px;align-items:center;text-align:start;padding:8px 12px;background:#fcfcf4;border:1px solid #bdcbb7;border-radius:7px}.studio-path-grid button:hover{border-color:#729279}.studio-path-grid button:nth-child(2){background:#e6eee0;border-color:#a9bda7}.studio-home-plate figcaption button{background:#f9fbf1;font-size:13px;padding:4px 10px}.studio-path-grid button>span:nth-child(2){display:grid;gap:3px}.studio-path-grid strong{font-size:16px;line-height:1.5}.studio-path-grid button>span:nth-child(2)>span{color:#4b5f51;font-size:13px;line-height:1.6}.studio-path-icon{color:#46674e;width:32px;height:32px;display:grid;place-items:center;background:#e5eee1;border-radius:5px}.studio-path-icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.35;stroke-linejoin:round;stroke-linecap:round}.studio-path-arrow{color:#496750}.studio-tool-links{display:flex;flex-wrap:wrap;gap:8px;margin-block-start:20px;padding-block:10px;border-block-start:1px solid #d0d9cc}.studio-tool-links button{background:transparent;border-color:transparent;font-size:14px;padding-inline:9px}@media(max-width:620px){.studio-home-hero{grid-template-columns:minmax(0,1fr);gap:12px}.studio-home-intro h1{max-width:none;font-size:clamp(28px,7.5vw,44px)}.studio-home-summary{margin-block:6px 0}.studio-start{margin-block-start:11px}.studio-home-label{font-size:13px;margin-block:0 3px}.studio-home-plate .home-drawing{max-height:240px}.studio-path-grid button{padding-block:10px}}.studio-projects{max-width:900px;margin-inline:auto}.studio-projects details{margin-block:12px}.studio-projects summary{cursor:pointer}.studio-saved-list{list-style:none;padding:0;display:grid;gap:6px;margin:12px 0 0}.studio-saved-list button{display:flex;align-items:center;justify-content:space-between;gap:12px;text-align:start;width:100%;min-height:52px;padding:10px 14px;background:#f0f4e9;color:#234734;border:1px solid #c5d3c0;border-radius:5px}.studio-saved-list button:hover{background:#e5eddf}.studio-saved-list button>span{font-size:14px;white-space:nowrap}.studio-header .studio-nav{position:relative;overflow:visible;gap:8px;align-items:center;justify-content:center}.studio-nav-group{min-width:0;display:flex;flex-direction:column;gap:2px}.studio-nav-group>span{padding:8px 10px;color:#465f50;font-size:13px;font-weight:700;border-block-end:1px solid #dce5d8}.studio-nav .studio-nav-trigger,.studio-nav>[data-destination]{color:#345646;font-size:14px;font-weight:650;padding-inline:12px;min-height:44px}.studio-nav-trigger span{font-size:11px;color:#4c6655;margin-inline-start:3px}.studio-nav .studio-nav-trigger[data-current],.studio-nav .studio-nav-trigger[aria-expanded=true],.studio-nav>[aria-current=page]{background:#e5eddf;color:#234b36;border-radius:5px;box-shadow:inset 0 -2px #456e54}.studio-nav-options{position:absolute;z-index:6;inset-inline-start:0;top:calc(100% + 5px);width:min(560px,65vw);display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;padding:10px;background:#fffef6;border:1px solid #bccbb9;border-radius:7px;box-shadow:0 10px 25px #263e3220}.studio-nav-options[hidden]{display:none}.studio-nav .studio-nav-options button{display:block;width:100%;min-height:44px;white-space:normal;text-align:start;color:#345646;font-size:14px}.studio-nav .studio-nav-options button[aria-current]{background:#e8eee2;border-radius:4px}.studio-location{color:#465f50;border-inline-start:1px solid #c7d4c2;padding-inline-start:11px;font-size:13px;line-height:1.35}@media(max-width:950px){.studio-header .studio-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:2px;justify-content:stretch;width:100%;margin:0}.studio-nav .studio-nav-trigger,.studio-nav>[data-destination]{font-size:13px;padding-inline:3px;white-space:normal;line-height:1.3}.studio-nav-options{position:static;grid-column:1/-1;grid-row:2;width:auto;gap:4px;padding:4px;box-shadow:none}.studio-nav .studio-nav-options button,.studio-nav-group>span{font-size:13px;padding-inline:6px}.studio-location{grid-column:1/-1;border-inline-start:0;padding:3px 4px}}