:root{--ink:#223a3d;--muted:#526a6d;--teal:#12676a;--mint:#e7f2ed;--line:#cfddd5;--paper:#f7f6f1;--bs-primary:#12676a;--bs-primary-rgb:18,103,106;font-family:system-ui,-apple-system,"Segoe UI",sans-serif;color-scheme:light}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:14px/1.65 system-ui,-apple-system,"Segoe UI",sans-serif}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}button,a,input,select,textarea,summary{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #17686c;outline-offset:3px}button:disabled{cursor:not-allowed}.practice-workshop{width:100%;max-width:1320px;margin:0 auto;padding:28px;overflow-wrap:anywhere;min-width:0}.practice-workshop h1,.practice-workshop h2,.practice-workshop h3,.practice-workshop h4{color:var(--ink);line-height:1.3;letter-spacing:-.025em;font-weight:750}.practice-workshop h1{font-size:clamp(25px,3.8vw,34px);margin:0 0 14px}.practice-workshop h2{font-size:22px;margin:0}.practice-workshop h3{font-size:17px;margin:0}.practice-workshop h4{font-size:15px;margin:25px 0 12px}.practice-workshop p{margin:0 0 13px}.practice-workshop .btn{min-height:44px;font-size:13px;line-height:1.45;padding:10px 14px;border-radius:9px;font-weight:650;white-space:normal;box-shadow:none}.practice-workshop .btn-primary{--bs-btn-bg:#12676a;--bs-btn-border-color:#12676a;--bs-btn-color:#fff;--bs-btn-hover-bg:#0d5054;--bs-btn-hover-border-color:#0d5054;--bs-btn-hover-color:#fff;--bs-btn-active-bg:#0d5054;--bs-btn-active-border-color:#0d5054;--bs-btn-active-color:#fff;background:#12676a;color:#fff;border-color:#12676a}.practice-workshop .btn-primary:hover,.practice-workshop .btn-primary:focus-visible{background:#0d5054;color:#fff;border-color:#0d5054}.practice-workshop .btn-outline-secondary{--bs-btn-color:#2d5052;--bs-btn-border-color:#b8cdc2;--bs-btn-hover-color:#183e40;--bs-btn-hover-bg:#e4f0e9;--bs-btn-hover-border-color:#8fafa4;--bs-btn-active-bg:#d7e9df;--bs-btn-active-color:#183e40;--bs-btn-disabled-color:#798d8c;--bs-btn-disabled-border-color:#d4dfd8;color:#2d5052;border-color:#b8cdc2;background:#fff}.practice-workshop .btn-outline-secondary:hover:not(:disabled){background:#e4f0e9;color:#183e40;border-color:#8fafa4}.practice-workshop .btn-outline-secondary:disabled{color:#798d8c;border-color:#d4dfd8}.help{color:var(--muted);font-size:12px;line-height:1.65}.eyebrow{font-size:10px;font-weight:750;text-transform:uppercase;letter-spacing:.15em;color:var(--teal);margin-bottom:12px!important}.practice-intro{display:flex;justify-content:space-between;align-items:center;gap:28px;padding:3px 0 28px}.practice-intro>div:first-child{max-width:790px}.practice-intro>div:first-child>p:last-child{max-width:720px;color:var(--muted);margin:0;font-size:14px}.local-badge{flex-shrink:0;display:flex;gap:11px;align-items:center;border-radius:50%;padding:22px 26px;border:1px solid var(--line);background:var(--mint);color:#236361;font-size:12px;line-height:1.5}.local-badge>span{font-size:28px}.section-heading{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-bottom:15px}.section-heading>span{font-size:10px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:700}.exercise-picker{margin-bottom:25px}.exercise-buttons{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.exercise-card{display:flex;gap:13px;align-items:center;text-align:left;min-width:0;min-height:92px;padding:17px;border:1px solid var(--line);border-radius:13px;background:#fff;color:var(--ink)}.exercise-card:hover{border-color:#83afa0;background:#f0f7f0}.exercise-card.is-selected{border:2px solid var(--teal);padding:16px;background:var(--mint)}.exercise-card strong{display:block;font-size:14px;line-height:1.35;margin:0 0 5px}.exercise-card small{display:block;color:var(--muted);font-size:12px;line-height:1.4}.exercise-icon{display:grid;place-items:center;width:43px;height:47px;flex-shrink:0;background:#e7f2ed;border-radius:9px;color:var(--teal)}.exercise-icon svg{width:32px;height:32px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.exercise-card.is-selected .exercise-icon{background:#d6e9df}.workbench{background:#fff;border:1px solid var(--line);border-radius:17px;padding:23px;box-shadow:0 8px 30px #273c3510;min-width:0}.exercise-header{display:flex;justify-content:space-between;align-items:center;gap:16px;margin:0 0 20px}.exercise-header .eyebrow{margin-bottom:8px!important}.exercise-header h2{font-size:24px}.exercise-header p:last-child{color:var(--muted);font-size:13px;margin:8px 0 0}.exercise-number{font-size:42px;font-weight:750;line-height:1;color:#c8ded3;flex-shrink:0}.mode-toolbar{display:flex;gap:6px;padding:5px;border-radius:10px;border:1px solid var(--line);background:#f2f6f1;max-width:470px;margin-bottom:23px}.mode-button{border:1px solid transparent;background:transparent;color:#4c6969;min-height:44px;padding:10px 15px;border-radius:7px;font-size:13px;font-weight:700;flex:1;white-space:nowrap}.mode-button:hover{background:#e4eee5}.mode-button.is-selected{background:#fff;color:var(--teal);border-color:#bed2c4;box-shadow:0 2px 7px #28534409}.workbench-layout{display:grid;grid-template-columns:minmax(0,1fr) 287px;gap:23px}.main-panel,.content-panel,.checklist-panel{min-width:0}.content-panel[hidden]{display:none}.preview-heading{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-bottom:14px}.preview-heading .btn{font-size:12px;padding:9px 11px}.device-toolbar,.code-file-buttons{display:flex;gap:7px;flex-wrap:wrap;align-items:center;margin-bottom:10px}.device-button{min-height:44px;padding:9px 13px;background:#fff;border:1px solid var(--line);border-radius:8px;font-size:12px;color:#4c6969;font-weight:650}.device-button:hover{background:#eff5ef;border-color:#90b2a7}.device-button.is-selected{background:var(--mint);border-color:var(--teal);color:var(--teal)}.preview-note{font-size:11px;line-height:1.6;color:var(--muted);margin:0 0 12px!important}.preview-stage{min-width:0;width:100%;border:1px solid #d4e0d8;border-radius:11px;overflow:hidden;background:repeating-linear-gradient(45deg,#edf3ed,#edf3ed 8px,#f4f7f1 8px,#f4f7f1 16px);padding:10px}.preview-viewport{position:relative;margin:0 auto;overflow:hidden;min-width:0;width:100%;height:450px;background:#f6f7f4;box-shadow:0 2px 8px #28534412}#example-frame{display:block;border:0;transform-origin:top left;width:100%;height:450px;background:#f6f7f4}.preview-help{margin:12px 0 0!important}.checklist-panel{border-left:1px solid #e0e8e1;padding-left:23px}.checklist-title-row{display:flex;gap:12px;align-items:flex-start;justify-content:space-between;margin-bottom:12px}.checklist-title-row h3{font-size:16px}.checklist-title-row>span{font-size:12px;color:var(--teal);background:var(--mint);padding:3px 8px;border-radius:6px;white-space:nowrap;font-weight:700}.checklist-panel>.help{font-size:12px;margin-bottom:20px}.checklist-items{display:grid;gap:12px}.check-item{display:flex;align-items:flex-start;gap:9px;font-size:12px;line-height:1.55;color:#365254;cursor:pointer;padding:8px;border-radius:8px;background:#f5f8f3;border:1px solid #e1eae0}.check-item input{width:19px;height:19px;margin:1px 0 0;flex-shrink:0;accent-color:var(--teal);cursor:pointer}.check-item:has(input:checked){background:#e8f3e9;border-color:#bed7c7}.checklist-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}.checklist-actions .btn{font-size:12px;padding:9px 11px}.storage-note{font-size:11px;color:var(--muted);line-height:1.6;margin:12px 0 0!important}.skill-tags{display:flex;gap:6px;flex-wrap:wrap;margin:18px 0}.skill-tags span{font-size:11px;background:#eaf2ec;color:#32615e;border-radius:5px;padding:4px 8px;font-weight:650}.brief-list{padding-left:20px;margin:0}.brief-list li{font-size:13px;color:#476467;line-height:1.7;margin:10px 0}.brief-hint{background:#f0f6ec;border-left:3px solid #91b888;padding:15px 17px;border-radius:0 9px 9px 0;margin:22px 0}.brief-hint strong{font-size:13px}.brief-hint p{font-size:12px;color:var(--muted);margin:7px 0 0}.code-output{margin-top:14px;height:380px;resize:vertical;font:12px/1.55 ui-monospace,SFMono-Regular,Consolas,monospace;white-space:pre;overflow:auto;border-color:var(--line);border-radius:10px;background:#f5f8f3;color:var(--ink);padding:14px;min-width:0;width:100%}.code-output:focus{border-color:#3c7c70;box-shadow:0 0 0 3px #d0e4d7}.practice-next{padding:30px 0}.practice-next h2{font-size:21px}.next-columns{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:25px;margin-top:25px}.next-columns>article{min-width:0}.next-columns>article>span{font-size:11px;font-weight:750;color:var(--teal);letter-spacing:.08em}.next-columns h3{font-size:15px;margin:8px 0 10px}.next-columns p{color:var(--muted);font-size:12px;line-height:1.7;margin:0}.workshop-footer{display:flex;gap:14px 24px;align-items:center;justify-content:space-between;flex-wrap:wrap;border:1px solid var(--line);border-radius:13px;background:#eaf3ed;padding:22px}.workshop-footer>div{max-width:650px}.workshop-footer strong{font-size:15px}.workshop-footer p{font-size:12px;color:var(--muted);margin:5px 0 0}.workshop-footer small{width:100%;display:block;border-top:1px solid #ccded1;padding-top:12px;font-size:11px;color:var(--muted);line-height:1.7}.copy-fallback{position:fixed;top:0;left:0;width:1px;height:1px;opacity:.01}
@media(max-width:1050px){.practice-workshop{padding:23px}.workbench{padding:19px}.workbench-layout{grid-template-columns:minmax(0,1fr) 253px;gap:18px}.checklist-panel{padding-left:18px}.exercise-card{padding:14px;gap:10px}.exercise-card.is-selected{padding:13px}.exercise-card strong{font-size:13px}.exercise-icon{width:37px;height:41px}.preview-heading h3{font-size:16px}}
@media(max-width:800px){.practice-workshop{padding:18px}.workbench-layout{grid-template-columns:minmax(0,1fr)}.checklist-panel{border-left:0;padding-left:0;border-top:1px solid #e0e8e1;padding-top:20px;margin-top:4px}.checklist-items{grid-template-columns:repeat(2,minmax(0,1fr))}.checklist-panel>.help{max-width:620px}.local-badge{padding:17px;font-size:11px}.practice-intro{gap:16px}.exercise-card{min-height:85px}.exercise-icon{display:none}}
@media(max-width:600px){.practice-workshop{padding:14px}.practice-intro{display:block;padding:2px 0 24px}.practice-intro h1{font-size:27px}.practice-intro>div:first-child>p:last-child{font-size:13px}.local-badge{display:inline-flex;border-radius:9px;padding:8px 13px;margin-top:15px;gap:9px}.local-badge>span{font-size:20px}.local-badge br{display:none}.local-badge br::after{content:' · '}.section-heading h2{font-size:19px}.section-heading>span{font-size:9px}.exercise-buttons{grid-template-columns:minmax(0,1fr);gap:8px}.exercise-card{padding:12px;min-height:70px}.exercise-card.is-selected{padding:11px}.exercise-icon{display:grid;width:37px;height:41px}.exercise-card strong{font-size:13px}.exercise-card small{font-size:11px}.workbench{padding:15px;border-radius:13px}.exercise-header h2{font-size:21px}.exercise-header p:last-child{font-size:12px}.exercise-number{font-size:32px}.exercise-header .eyebrow{font-size:9px}.mode-toolbar{gap:3px;padding:4px;max-width:none}.mode-button{padding:10px 6px;font-size:12px}.preview-heading{gap:10px}.preview-heading h3{font-size:15px;width:100%}.preview-heading .btn{font-size:12px}.device-toolbar{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:5px}.device-button{padding:9px 5px;font-size:11px}.preview-stage{padding:7px;border-radius:9px}.preview-note{font-size:11px}.checklist-items{grid-template-columns:minmax(0,1fr);gap:10px}.checklist-title-row h3{font-size:16px}.check-item{font-size:12px;padding:10px}.storage-note{font-size:12px}.checklist-actions{margin-top:16px}.skill-tags{margin:15px 0}.brief-list li{font-size:12px}.content-panel>p{font-size:13px}.brief-hint{padding:13px}.code-output{height:340px;font-size:11px;padding:11px}.code-file-buttons{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}.practice-next{padding:25px 0}.practice-next h2{font-size:20px}.next-columns{display:block;margin-top:20px}.next-columns>article+article{margin-top:18px}.next-columns h3{font-size:15px}.next-columns p{font-size:12px}.workshop-footer{display:block;padding:16px}.workshop-footer>.btn{width:100%;margin:16px 0}.workshop-footer small{font-size:12px}.preview-help{font-size:12px}}
@media(max-width:360px){.practice-workshop{padding:10px}.practice-intro h1{font-size:24px}.workbench{padding:11px}.exercise-header h2{font-size:20px}.exercise-number{font-size:28px}.mode-button{font-size:11px;padding:10px 4px}.device-button{font-size:10px}.device-toolbar{gap:4px}.checklist-title-row{gap:8px}.checklist-title-row h3{font-size:15px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

@media(max-width:600px){.device-toolbar>[data-width=auto]{grid-column:1/-1}}