#root{min-height:100vh}:root{color:#172033;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;--accent:#2563eb;--accent-strong:#1d4ed8;--ink:#172033;--muted:#5b6475;--panel:#fff;--line:#d7deea;--canvas:#fffdf8;--focus:#f59e0b;background:#f6f8fb;font-family:Inter,Pretendard,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{min-width:320px;margin:0;overflow-x:clip}button,input{font:inherit}button{cursor:pointer}.app-shell{min-height:100vh;padding:28px;overflow-x:hidden}.studio-heading{max-width:1120px;margin:0 auto 20px}.subject-line{color:var(--accent-strong);margin:0 0 8px;font-size:.9rem;font-weight:700}.studio-heading h1{letter-spacing:0;margin:0;font-size:clamp(2rem,4vw,3.6rem);line-height:1.08}.studio-heading p:last-child{max-width:720px;color:var(--muted);margin:12px 0 0;font-size:1.05rem;line-height:1.6}.workspace{grid-template-columns:minmax(220px,280px) minmax(0,1fr) minmax(240px,300px);align-items:start;gap:18px;width:min(100%,1440px);min-width:0;max-width:1440px;margin:0 auto;display:grid;overflow-x:hidden}.toolbar,.learning-panel,.canvas-stage{min-width:0}.toolbar,.learning-panel{border:1px solid var(--line);background:var(--panel);border-radius:8px;padding:18px;box-shadow:0 14px 35px #17203314}.tool-group+.tool-group,.learning-panel section+section{margin-top:18px}.tool-group h2,.learning-panel h2{margin:0 0 10px;font-size:.92rem;line-height:1.3}.segmented-control{gap:8px;display:grid}.segment-button,.icon-button{border:1px solid var(--line);min-height:44px;color:var(--ink);background:#f8fafc;border-radius:8px;padding:10px 12px;font-weight:700}.icon-button{min-width:44px}.segment-button[aria-checked=true],.icon-button[aria-pressed=true]{border-color:var(--accent);color:var(--accent-strong);background:#dbeafe}.swatch-row{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}.color-swatch{aspect-ratio:1;min-width:36px;min-height:48px;box-shadow:0 0 0 1px var(--line);color:#fff;text-shadow:0 1px 2px #00000038;border:3px solid #fff;border-radius:999px;flex-direction:column;justify-content:flex-end;align-items:center;gap:4px;padding:4px;font-size:.75rem;font-weight:700;line-height:1;display:inline-flex}.color-swatch[aria-pressed=true]{box-shadow:0 0 0 2px var(--accent), 0 8px 16px #2563eb38}.swatch-label{white-space:nowrap;font-size:.74rem}.mission-list{gap:8px;margin:0;padding:0;list-style:none;display:grid}.mission-item{color:var(--muted);grid-template-columns:1.1rem 1fr;align-items:baseline;gap:8px;font-size:.9rem;line-height:1.35;display:grid}.mission-item.complete{color:var(--accent-strong);font-weight:700}.range-label{color:var(--muted);grid-template-columns:auto 1fr auto;align-items:center;gap:10px;font-size:.92rem;display:grid}.range-label input{width:100%;accent-color:var(--accent)}.compact-tools{gap:8px;display:grid}.icon-button{justify-content:center;align-items:center;gap:8px;display:inline-flex}.axis-note{color:var(--muted);align-items:flex-start;gap:8px;margin:18px 0 0;font-size:.9rem;line-height:1.5;display:flex}.canvas-stage{border:1px solid var(--line);background:var(--canvas);touch-action:none;border-radius:8px;overflow:hidden;box-shadow:0 18px 42px #1720331a}.canvas-stage canvas{touch-action:none;width:100%;height:auto;display:block}.standard-list{gap:12px;margin:0;display:grid}.standard-list div{gap:4px;display:grid}.standard-list dt{color:var(--accent-strong);font-weight:800}.standard-list dd{color:var(--muted);margin:0;line-height:1.45}.learning-panel ul{color:var(--muted);gap:8px;margin:0;padding-left:18px;line-height:1.45;display:grid}.learning-panel .mission-list{padding-left:0}.learning-panel p{color:var(--muted);margin:0;line-height:1.5}.share-message{resize:none;border:1px solid var(--line);width:100%;min-height:64px;color:var(--ink);font:inherit;background:#fff;border-radius:6px;padding:8px 10px;line-height:1.45}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.action-row{grid-template-columns:1fr;gap:8px;display:grid}.sr-status{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:fixed;overflow:hidden}:focus-visible{outline:3px solid var(--focus);outline-offset:3px}@media (width<=1180px){.workspace{grid-template-columns:minmax(220px,300px) minmax(0,1fr)}.toolbar,.canvas-stage{grid-row:1}.learning-panel{grid-area:2/1/auto/-1;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 24px;display:grid}.learning-panel section+section{margin-top:0}.learning-panel section:last-child{grid-column:1/-1}}@media (width<=720px){.app-shell{padding:18px}.studio-heading h1{font-size:2rem}.workspace{grid-template-columns:1fr}.toolbar,.canvas-stage,.learning-panel{grid-area:auto}.toolbar{grid-template-columns:1fr;gap:16px;display:grid}.tool-group+.tool-group{margin-top:0}.learning-panel{display:block}.learning-panel section+section{margin-top:18px}.axis-note{grid-column:auto}}