:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#f8fafc;background:#0a0f1d;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;--panel: #111827;--panel-strong: #172033;--line: #2b3548;--muted: #9aa8bd;--gold: #f6d365;--red: #ef4444;--green: #22c55e;--cyan: #55c7ff}*{box-sizing:border-box}html,body,#app{width:100%;min-width:320px;min-height:100%;margin:0}body{min-height:100vh;overflow-x:hidden}button{font:inherit}.app-shell{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(180deg,#0b1220eb,#080d18),repeating-linear-gradient(90deg,rgba(255,255,255,.03) 0 1px,transparent 1px 84px)}.play-surface{width:min(1260px,100%);display:grid;grid-template-columns:minmax(0,896px) 340px;gap:18px;align-items:start}.game-canvas{position:relative;min-width:0;aspect-ratio:16 / 9;border:1px solid #293348;background:#0d1220;box-shadow:0 22px 70px #00000061;overflow:hidden}.game-canvas canvas{display:block;width:100%;height:100%}.hud-root{min-width:0}.build-overlay-root{position:absolute;inset:0;z-index:3;pointer-events:none}.build-popover{position:absolute;width:min(330px,calc(100% - 24px));display:grid;gap:10px;padding:12px;border:1px solid rgba(45,212,191,.72);border-radius:8px;color:#effffb;background:#0a1f2cf5;box-shadow:0 18px 44px #0000006b;pointer-events:auto}.tower-action-popover{width:min(290px,calc(100% - 24px))}.build-popover.is-right.is-down{transform:translate(18px,18px)}.build-popover.is-right.is-up{transform:translate(18px,calc(-100% - 18px))}.build-popover.is-left.is-down{transform:translate(calc(-100% - 18px),18px)}.build-popover.is-left.is-up{transform:translate(calc(-100% - 18px),calc(-100% - 18px))}.build-popover-title{display:flex;justify-content:space-between;gap:12px}.build-popover-title span{color:#99f6e4;font-size:12px;font-weight:800}.build-popover-title strong{font-size:13px}.build-popover p{margin:0;color:#c8f7ef;font-size:13px}.build-popover-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}.tower-action-popover .build-popover-actions{grid-template-columns:1fr}.tower-choice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.tower-choice{min-width:0;min-height:52px;display:grid;grid-template-columns:18px minmax(0,1fr) auto;gap:8px;align-items:center;padding:8px;border:1px solid var(--line);border-radius:8px;color:#f8fafc;background:#142035;text-align:left;cursor:pointer}.tower-choice.is-active{border-color:var(--tower-accent);background:#20304a}.tower-choice.is-locked{opacity:.58}.tower-choice strong,.tower-choice small,.tower-choice em{display:block}.tower-choice strong{font-size:13px;line-height:1.1}.tower-choice small{margin-top:2px;color:var(--muted);font-size:11px;line-height:1.15}.tower-choice em{color:var(--gold);font-size:12px;font-style:normal;font-weight:800}.hud-panel{height:100%;max-height:calc(100vh - 48px);min-height:504px;display:flex;flex-direction:column;gap:14px;overflow-y:auto;padding:16px;border:1px solid var(--line);background:#111827f5;box-shadow:0 22px 70px #0000004d}.hud-topline,.section-title,.control-row{display:flex;align-items:center;justify-content:space-between;gap:10px}.upgrade-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.hud-kicker{display:block;margin-bottom:4px;color:var(--gold);font-size:11px;font-weight:800;letter-spacing:0}h1{margin:0;color:#fff;font-size:28px;line-height:1.05}.icon-button,.primary-button,.confirm-button,.secondary-button,.danger-button{border:1px solid var(--line);color:#f8fafc;background:var(--panel-strong);cursor:pointer;transition:transform .12s ease,border-color .12s ease,background .12s ease}.icon-button:hover,.primary-button:hover,.confirm-button:hover,.secondary-button:hover,.danger-button:hover{transform:translateY(-1px);border-color:#516079}.icon-button:disabled,.primary-button:disabled,.confirm-button:disabled,.secondary-button:disabled,.danger-button:disabled{cursor:not-allowed;opacity:.48;transform:none}.icon-button{width:40px;height:40px;border-radius:8px;font-size:22px;line-height:1}.primary-button,.confirm-button,.secondary-button,.danger-button{min-height:42px;padding:0 14px;border-radius:8px;font-weight:800}.upgrade-button{min-width:0;padding:0 8px;font-size:13px}.primary-button{flex:1;color:#101827;border-color:#f6d365;background:var(--gold)}.confirm-button{flex:1;color:#06131f;border-color:#2dd4bf;background:#2dd4bf}.secondary-button{flex:1;background:#22304a}.danger-button{flex:1;border-color:#ef44448c;background:#3a1821}.stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.stat{min-height:64px;padding:11px 12px;border:1px solid var(--line);border-radius:8px;background:#0f1727}.stat span,.section-title span{display:block;color:var(--muted);font-size:12px;font-weight:700}.stat strong{display:block;margin-top:5px;color:#fff;font-size:24px;line-height:1}.hud-section{display:grid;gap:10px;padding-top:2px}.section-title strong{color:#fff;font-size:13px;text-align:right}.tower-swatch{width:18px;height:18px;border-radius:50%;background:var(--tower-accent);box-shadow:0 0 0 4px #ffffff0f}.wave-box{padding:12px;border:1px solid var(--line);border-radius:8px;background:#0d1424}.wave-line{display:flex;flex-wrap:wrap;gap:6px}.wave-line span{padding:6px 8px;border-radius:999px;color:#d9e2f2;background:#182338;font-size:12px;font-weight:700}.hud-message{min-height:44px;margin:auto 0 0;padding:12px;border-left:3px solid var(--cyan);color:#dbeafe;background:#0b1220;line-height:1.45}.hud-message.is-final{border-left-color:var(--gold)}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important}}@media(max-width:1120px){.app-shell{place-items:start center;padding:14px}.play-surface{grid-template-columns:1fr}.game-canvas{aspect-ratio:16 / 9}.hud-panel{max-height:none;min-height:auto}}@media(max-width:620px){.app-shell{padding:10px}.hud-panel{padding:12px}h1{font-size:23px}.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.control-row{align-items:stretch}.upgrade-grid{grid-template-columns:1fr}.build-popover{width:min(300px,calc(100% - 20px))}.tower-action-popover{width:min(270px,calc(100% - 20px))}.tower-choice-grid{grid-template-columns:1fr}}