:root{--bg: #0f172a;--panel: #1e293b;--panel-light: #334155;--text: #e2e8f0;--muted: #94a3b8;--rubber: #22c55e;--ice: #38bdf8;--iron: #94a3b8;--danger: #ef4444;--accent: #f59e0b;--safe-bottom: env(safe-area-inset-bottom, 0px);--safe-top: env(safe-area-inset-top, 0px)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{height:100%;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Hiragino Sans,Hiragino Kaku Gothic ProN,Meiryo,sans-serif;overscroll-behavior:none;touch-action:manipulation;-webkit-user-select:none;user-select:none}.app{display:flex;flex-direction:column;height:100dvh;width:100vw;max-width:720px;margin:0 auto;padding:var(--safe-top) 8px var(--safe-bottom) 8px;overflow:hidden}.hud{display:flex;align-items:center;gap:8px;padding:8px 4px;flex-wrap:wrap}.hud__title{font-size:15px;font-weight:700;margin-right:auto;letter-spacing:.02em}.hud__title small{display:block;font-size:10px;font-weight:400;color:var(--muted)}.stat{background:var(--panel);border-radius:10px;padding:5px 9px;min-width:56px;text-align:center}.stat__label{font-size:9px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}.stat__value{font-size:16px;font-weight:700;line-height:1.2}.bar{flex:1 1 110px;min-width:110px}.bar__label{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);margin-bottom:2px}.bar__track{height:8px;background:var(--panel-light);border-radius:6px;overflow:hidden}.bar__fill{height:100%;border-radius:6px;transition:width .18s ease}.bar__fill--hp{background:linear-gradient(90deg,var(--danger),#f97316)}.bar__fill--mana{background:linear-gradient(90deg,#6366f1,var(--ice))}.game-area{position:relative;flex:1 1 auto;min-height:0;display:flex;align-items:center;justify-content:center}#game-container{width:100%;height:100%;display:flex;align-items:center;justify-content:center}#game-container canvas{display:block;max-width:100%;max-height:100%;border-radius:12px;touch-action:none}.controls{display:flex;gap:8px;padding:10px 4px calc(10px + var(--safe-bottom)) 4px}.btn{flex:1 1 0;min-height:60px;border:2px solid transparent;border-radius:14px;background:var(--panel);color:var(--text);font-size:13px;font-weight:700;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;cursor:pointer;transition:transform .05s ease,border-color .15s ease,background .15s ease}.btn:active{transform:scale(.95)}.btn__icon{font-size:20px;line-height:1}.btn__cost{font-size:10px;color:var(--muted);font-weight:500}.btn--rubber.is-active{border-color:var(--rubber);background:color-mix(in srgb,var(--rubber) 22%,var(--panel))}.btn--ice.is-active{border-color:var(--ice);background:color-mix(in srgb,var(--ice) 22%,var(--panel))}.btn--iron.is-active{border-color:var(--iron);background:color-mix(in srgb,var(--iron) 28%,var(--panel))}.btn--build.is-active{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 22%,var(--panel))}.btn:disabled{opacity:.4;cursor:not-allowed}.hint{text-align:center;font-size:11px;color:var(--muted);min-height:14px;padding:2px 4px}.overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#0f172aeb;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:24px;z-index:10}.overlay h1{font-size:26px;margin:0 0 6px}.overlay h2{font-size:22px;margin:0 0 10px}.overlay p{color:var(--muted);font-size:13px;line-height:1.7;max-width:320px;margin:0 0 20px}.overlay .result{font-size:15px;color:var(--text);margin-bottom:18px}.overlay__btn{background:var(--accent);color:#1a1206;border:none;border-radius:12px;padding:14px 32px;font-size:16px;font-weight:800;cursor:pointer}.overlay__btn:active{transform:scale(.96)}@media (orientation: landscape) and (max-height: 520px){.hud__title small{display:none}.btn{min-height:50px}}