*{box-sizing:border-box}body{color:#1d1d1f;background:#f5f5f7;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}button,select{font:inherit}.app{min-height:100vh;padding:48px 5vw}.hero{max-width:900px;margin-bottom:40px}.eyebrow{color:#0071e3;letter-spacing:.08em;text-transform:uppercase;margin:0 0 12px;font-size:.78rem;font-weight:800}.hero h1{letter-spacing:-.06em;margin:0;font-size:clamp(4rem,12vw,9rem);line-height:.9}.heroText{color:#424245;max-width:700px;font-size:clamp(1.1rem,2vw,1.5rem);font-weight:500;line-height:1.5}.gameLayout{grid-template-columns:minmax(0,1fr) 340px;align-items:start;gap:28px;display:grid}.gamePanel,.statusPanel{background:#fff;border:1px solid #00000014;border-radius:34px;box-shadow:0 24px 70px #00000014}.gamePanel{padding:30px}.levelHeader{justify-content:space-between;align-items:flex-start;gap:24px;margin-bottom:24px;display:flex}.levelHeader h2{letter-spacing:-.05em;margin:0 0 10px;font-size:clamp(2rem,4vw,3.4rem)}.levelHeader p{color:#424245;max-width:680px;margin:0;font-weight:500;line-height:1.6}select{color:#1d1d1f;background:#fff;border:1px solid #00000024;border-radius:999px;min-width:190px;padding:10px 14px;font-weight:700}.graphCanvasWrap{background:radial-gradient(circle at 100% 0,#0071e31f,#0000 34%),#f5f5f7;border-radius:28px;width:100%;overflow:hidden}.graphCanvas{width:100%;height:auto;display:block}.edge{stroke:#8e8e93;stroke-width:5px;stroke-linecap:round}.conflictEdge{stroke:#ff3b30;stroke-width:8px}.vertexGroup{cursor:pointer}.vertex{stroke:#fff;stroke-width:7px;filter:drop-shadow(0 12px 18px #0000002e);transform-box:fill-box;transform-origin:50%;transition:transform .18s,filter .18s}.vertexGroup:hover .vertex{filter:drop-shadow(0 16px 24px #0000003d);transform:scale(1.08)}.vertexLabel{fill:#1d1d1f;pointer-events:none;font-size:18px;font-weight:900}.statusPanel{padding:28px;position:sticky;top:24px}.statusBox{background:#f5f5f7;border-radius:24px;margin-bottom:18px;padding:22px}.statusBox.solved{background:#e7f7ed}.statusBox h3{letter-spacing:-.04em;margin:0 0 8px;font-size:1.5rem}.statusBox p,.rules p{color:#424245;margin:0;font-weight:500;line-height:1.6}.stats{grid-template-columns:1fr 1fr;gap:12px;margin-bottom:18px;display:grid}.stats div{background:#f5f5f7;border-radius:20px;padding:18px}.stats span{color:#6e6e73;text-transform:uppercase;letter-spacing:.06em;margin-bottom:8px;font-size:.82rem;font-weight:800;display:block}.stats strong{letter-spacing:-.04em;font-size:2rem}button{color:#fff;cursor:pointer;background:#0071e3;border:none;border-radius:999px;width:100%;margin-bottom:24px;padding:13px 18px;font-weight:800}button:hover{background:#06c}.rules{border-top:1px solid #0000001a;padding-top:20px}.rules h3{margin:0 0 8px;font-size:1.25rem}.homeHero{margin-bottom:56px}.homeGrid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;display:grid}.modeCard{cursor:pointer;background:#fff;border:1px solid #00000014;border-radius:34px;padding:34px;transition:transform .2s,box-shadow .2s;box-shadow:0 24px 70px #00000014}.modeCard:hover{transform:translateY(-4px);box-shadow:0 30px 85px #0000001f}.modeCard h2{letter-spacing:-.05em;margin:0 0 18px;font-size:clamp(2.4rem,5vw,4.2rem);line-height:.95}.modeCard p{color:#424245;margin-bottom:28px;font-weight:500;line-height:1.6}.modeCard button:disabled{cursor:not-allowed;background:#d1d1d6}.modeCard button:disabled:hover{background:#d1d1d6}.backButton{color:#1d1d1f;background:#fff;border:1px solid #0000001f;width:auto;margin-bottom:36px}.backButton:hover{background:#f5f5f7}.customLayout{grid-template-columns:minmax(0,1fr) 360px;align-items:start;gap:28px;display:grid}.formGroup{margin-bottom:20px}.formGroup label{color:#424245;margin-bottom:8px;font-weight:800;display:block}.formGroup input[type=number]{color:#1d1d1f;background:#fff;border:1px solid #00000024;border-radius:16px;width:100%;padding:12px 14px;font-weight:700}.formGroup input[type=range]{width:100%}.levelMap{background:#fff;border:1px solid #00000014;border-radius:34px;margin-bottom:28px;padding:30px;box-shadow:0 24px 70px #00000014}.levelMapHeader{justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:24px;display:flex}.levelMapHeader h2{letter-spacing:-.05em;margin:0;font-size:clamp(2rem,4vw,3.4rem)}.levelProgressText{color:#6e6e73;margin:0;font-weight:700}.levelGrid{grid-template-columns:repeat(auto-fit,minmax(105px,1fr));gap:12px;display:grid}.levelButton{color:#1d1d1f;background:#f5f5f7;border:2px solid #0000;border-radius:20px;flex-direction:column;justify-content:center;align-items:center;gap:6px;width:100%;min-width:0;min-height:92px;margin:0;padding:14px;display:flex}.levelButton:hover:not(:disabled){background:#e8f2ff;transform:translateY(-2px)}.levelButton.current{background:#e8f2ff;border-color:#0071e3}.levelButton.completed{background:#e7f7ed}.levelButton.locked{color:#8e8e93;cursor:not-allowed;background:#eeeeef}.levelButton:disabled{opacity:.7}.levelButtonNumber{font-size:1.5rem;font-weight:900}.levelButtonLabel{text-transform:uppercase;letter-spacing:.05em;font-size:.72rem;font-weight:800}.levelNavigation{grid-template-columns:1fr 1fr;gap:12px;margin-top:20px;display:grid}.navigationButton{margin:0}.secondaryNavigation{color:#1d1d1f;background:#fff;border:1px solid #00000024}.secondaryNavigation:hover:not(:disabled){background:#f5f5f7}.navigationButton:disabled{color:#8e8e93;cursor:not-allowed;background:#d1d1d6}.nextLevelButton{background:#34c759}.nextLevelButton:hover{background:#2fb350}.quickInstructions{background:#e8f2ff;border:1px solid #0071e32e;border-radius:18px;align-items:center;gap:12px;margin-bottom:18px;padding:14px 16px;display:flex}.quickInstructions p{color:#1d1d1f;margin:0;font-weight:650;line-height:1.45}.instructionIcon{color:#fff;background:#0071e3;border-radius:50%;flex:none;place-items:center;width:30px;height:30px;font-weight:900;display:grid}@media (width<=900px){.app{padding:34px 4vw}.homeGrid,.gameLayout{grid-template-columns:1fr}.levelHeader{flex-direction:column}select{width:100%}.statusPanel{position:static}.customLayout{grid-template-columns:1fr}.levelMapHeader{flex-direction:column;align-items:flex-start}.levelGrid{grid-template-columns:repeat(2,minmax(0,1fr))}.levelNavigation{grid-template-columns:1fr}.quickInstructions{align-items:flex-start;padding:13px 14px}.quickInstructions p{font-size:.92rem}}