:root{color:#253142;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#1f2b38;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button{font:inherit}.home-screen{color:#f8f3e8;width:min(1180px,100vw - 32px);min-height:100vh;margin:0 auto;padding:56px 0}.home-screen[hidden],.game-shell[hidden]{display:none}.home-hero{max-width:820px;margin-bottom:28px}.home-hero p:last-child{color:#d8e1ec;margin:0;font-size:1.1rem}.level-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;display:grid}.level-card{color:#f8f3e8;cursor:pointer;text-align:left;background:#ffffff14;border:1px solid #ffffff29;border-radius:22px;min-height:180px;padding:22px;transition:background .18s,transform .18s,border-color .18s}.level-card:hover{background:#ffffff1f;border-color:#8ecae699;transform:translateY(-2px)}.level-card span,.level-card small{color:#8ecae6;font-weight:800;display:block}.level-card strong{margin:10px 0;font-size:1.7rem;display:block}.level-card small{color:#d8e1ec;font-weight:500;line-height:1.45}.game-shell{width:min(1180px,100vw - 32px);margin:0 auto;padding:28px 0;position:relative}.intro-panel{color:#f8f3e8;grid-template-columns:1fr minmax(240px,360px);align-items:stretch;gap:20px;margin-bottom:18px;display:grid}.eyebrow{color:#8ecae6;letter-spacing:.12em;text-transform:uppercase;margin:0 0 8px;font-size:.78rem;font-weight:800}h1{max-width:760px;margin:0 0 10px;font-size:clamp(2rem,5vw,4.4rem);line-height:.95}.instructions{color:#d8e1ec;max-width:780px;margin:0;font-size:1rem}.status-card{color:#f8f3e8;background:#ffffff14;border:1px solid #ffffff24;border-radius:16px;align-items:center;min-height:100px;padding:18px;font-weight:700;display:flex}.status-stack{gap:10px;display:grid}.level-badge{color:#f8f3e8;background:#8ecae629;border-radius:999px;padding:10px 14px;font-size:.88rem;font-weight:800}.status-card[data-tone=success]{background:#51cf6629;border-color:#51cf66d9}.status-card[data-tone=warning]{background:#ffd43b29;border-color:#ffd43bd9}.toolbar{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:14px;display:flex}.tool-button,.primary-button,.secondary-button,.danger-button{cursor:pointer;border:0;border-radius:999px;min-height:44px;padding:10px 14px;font-weight:800;transition:opacity .18s,transform .18s,background .18s}.tool-button{color:#253142;background:#fff8ea}.tool-button.selected{color:#10212f;background:#8ecae6;box-shadow:0 0 0 3px #8ecae647}.tool-button[data-tool=forward-wheel]{border-left:4px solid #fc3}.tool-button[data-tool=reverse-wheel]{border-left:4px solid #ff9cc0}.tool-button[data-tool=free-wheel]{border-left:4px solid #9ecbf2}.tool-button[data-tool=wood-rod]{border-left:4px solid #c9a066}.tool-button[data-tool=water-rod]{border-left:4px solid #5ec8ff}.primary-button{color:#102513;background:#51cf66;margin-left:auto}.secondary-button{color:#253142;background:#f8f3e8}.danger-button{color:#7d1f1f;background:#ffd8d8}.tool-button:hover,.primary-button:hover,.secondary-button:hover,.danger-button:hover{transform:translateY(-1px)}.tool-button:disabled,.primary-button:disabled,.secondary-button:disabled,.danger-button:disabled{cursor:not-allowed;opacity:.5;transform:none}.canvas-wrap{background:#9fd3f9;border:6px solid #7eb8e8;border-radius:4px;overflow:auto;box-shadow:0 8px 28px #5a9fd459}.canvas-wrap canvas{touch-action:none;border-radius:10px;width:100%;max-width:1100px;height:auto;margin:0 auto;display:block}.win-overlay{z-index:10;background:#101923b8;border-radius:20px;place-items:center;padding:24px;display:grid;position:absolute;inset:0}.win-overlay[hidden]{display:none}.win-card{color:#253142;text-align:center;background:#f8f3e8;border:1px solid #ffffff40;border-radius:24px;width:min(440px,100%);padding:30px;box-shadow:0 24px 80px #0000006b}.win-card .eyebrow{color:#2f9e44}.win-card h2{margin:0 0 8px;font-size:clamp(2.4rem,8vw,4.5rem);line-height:.95}.win-card p{margin:0}.win-actions{justify-content:center;gap:10px;margin-top:22px;display:flex}@media (width<=760px){.game-shell{width:min(100vw - 16px,1180px);padding:16px 0}.intro-panel{grid-template-columns:1fr}.primary-button{margin-left:0}.win-actions{flex-direction:column}}.level-check{color:#51cf66;margin-left:8px;font-style:normal;font-weight:800}.tool-button[data-tool=delete]{border-left:4px solid #e03131}