:root{font-family:Inter,system-ui,sans-serif;color:#152238;background:#d7dce3}*{box-sizing:border-box}body{margin:0;overflow:hidden}button,select,input{font:inherit}.app-shell{display:grid;grid-template-columns:340px 1fr;min-height:100vh}.sidebar{background:#d9dde4;padding:14px;overflow:auto;overscroll-behavior:contain;height:100vh;border-right:1px solid #c8ced9}.scene-panel{height:100vh;min-height:100vh;overflow:hidden}.card{background:#eef2f7;border:1px solid #c5cfdb;border-radius:22px;padding:16px;margin-bottom:16px}.card h1,.card h2{margin:0 0 12px}.card p{margin:8px 0 0;color:#56657b}button,select,input{width:100%;border-radius:12px;border:1px solid #bdc7d6;padding:10px 12px;background:#fff}button{cursor:pointer;background:#e8eef7}button.secondary{margin-bottom:10px}button.danger{background:#d88f8f;color:#fff;border-color:#d88f8f}button:disabled{opacity:.6;cursor:not-allowed}.field-label{display:block;margin:12px 0 6px;color:#56657b}.details div{display:flex;justify-content:space-between;gap:12px;margin:6px 0}.details span{color:#56657b}.axis-row{display:grid;grid-template-columns:72px 40px minmax(88px,92px) 40px;align-items:center;justify-content:start;gap:4px;margin-bottom:10px;width:100%}.axis-row label{color:#56657b;font-weight:700;line-height:1.15;font-size:.92rem}.axis-row input{min-width:0;width:100%;max-width:88px;text-align:center;font-weight:700;font-size:1.05rem;padding:12px 8px;justify-self:stretch}.axis-row button{padding:10px 0;width:40px;min-width:40px;justify-self:stretch}.wire-list{display:grid;gap:8px;margin-bottom:10px}.wire-item{display:grid;gap:2px;text-align:left;padding:10px 12px;background:#e8eef7}.wire-item.active{outline:2px solid #456bdf}.wire-item.compact{width:40px;padding:10px 0;text-align:center}@media(max-width:900px){.app-shell{grid-template-columns:1fr}.scene-panel{min-height:60vh}}.scene-panel{position:relative}.reference-button{position:absolute;left:18px;bottom:18px;z-index:10;width:auto;min-width:170px;padding:10px 14px;background:#e8eef7f0;border:1px solid #bdc7d6;box-shadow:0 4px 12px #00000026}.axis-row-compact{grid-template-columns:72px 40px minmax(88px,92px) 40px}.board-size-readout{min-width:0;width:100%;max-width:88px;min-height:44px;display:flex;align-items:center;justify-content:center;text-align:center;color:#152238;background:#fff;border:1px solid #bdc7d6;border-radius:12px;font-weight:700;font-size:1.05rem;padding:10px 8px}.card{overflow:hidden}.axis-row>*{min-width:0}.axis-row button.wire-item.compact{width:40px;min-width:40px;justify-self:stretch}.axis-row input,.board-size-readout{width:100%;max-width:100%}.axis-row-compact label{font-size:.92rem}.board-size-readout{min-height:46px}.card>.axis-row:last-child{margin-bottom:0}.task-image{width:100%;display:block;margin-top:12px;border-radius:14px;border:1px solid #bdc7d6;background:#fff}.active-task{outline:2px solid #456bdf}.task-image-button{padding:0;border:0;background:transparent;margin-top:12px}.task-image-button:hover{background:transparent}.task-lightbox{position:fixed;inset:0;z-index:1000;background:#0c121ce0;display:flex;align-items:center;justify-content:center;padding:24px}.task-lightbox-image{max-width:min(96vw,1600px);max-height:90vh;width:auto;height:auto;object-fit:contain;border-radius:18px;border:1px solid #bdc7d6;background:#fff;box-shadow:0 20px 60px #00000059}.task-lightbox-hint{position:fixed;bottom:20px;left:50%;transform:translate(-50%);color:#fff;background:#ffffff1f;border:1px solid rgba(255,255,255,.2);border-radius:999px;padding:8px 14px;font-size:14px}.splash-screen{position:fixed;inset:0;z-index:2000;display:flex;align-items:center;justify-content:center;padding:24px;background:linear-gradient(180deg,#e3e7ed,#cfd6df)}.splash-card{width:min(100%,980px);background:#ffffffeb;border:1px solid #c5cfdb;border-radius:28px;box-shadow:0 24px 70px #14223829;padding:34px 28px 28px;text-align:center}.splash-logos{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center;margin-bottom:18px}.splash-logo{display:block;max-width:100%;width:100%;height:170px;object-fit:contain;margin:0 auto}.splash-logo-left{max-width:360px}.splash-logo-right{max-width:250px}.splash-title{margin:8px auto 18px;max-width:760px;font-size:clamp(1.8rem,3vw,2.6rem);line-height:1.15;color:#152238}.splash-line{margin:8px 0;font-size:clamp(1rem,1.5vw,1.15rem);color:#4e5f77}.splash-copy{margin-bottom:22px}.splash-proceed{width:auto;min-width:180px;padding:12px 28px;border-radius:999px;border:1px solid #9fb0c7;background:#e8eef7;font-weight:700}@media(max-width:720px){.splash-card{padding:24px 18px 22px}.splash-logos{grid-template-columns:1fr;gap:12px}.splash-logo{height:120px}}