:root{--bg:#141a10;--grass:#2f4a24;--grass-2:#3d5c2e;--path:#c4a056;--path-edge:#7a5a28;--stone:#d8cbb4;--spawn:#5c1f1a;--gold:#e4b23c;--ember:#e85d04;--blood:#c1121f;--text:#f4efe3;--muted:#b5ae9a;--panel:#1c2416;--radius:12px}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);min-height:100vh;margin:0;font-family:Trebuchet MS,Segoe UI,system-ui,sans-serif}.app-shell{flex-direction:column;min-height:100vh;display:flex}.hero{text-align:center;background:radial-gradient(at 78% 42%,#e4b23c38 0%,#0000 42%),radial-gradient(at 12% 60%,#5c1f1a59 0%,#0000 40%),linear-gradient(#1a2214 0%,#141a10 55%,#0e120b 100%);flex-direction:column;flex:1;justify-content:center;align-items:center;padding:48px 24px;display:flex}.hero-badge{color:var(--gold);letter-spacing:.08em;text-transform:uppercase;background:#e4b23c24;border:1px solid #e4b23c59;border-radius:999px;margin-bottom:20px;padding:6px 16px;font-size:.85rem;font-weight:700;display:inline-block}.hero h1{letter-spacing:.02em;color:var(--stone);margin:0 0 14px;font-family:Georgia,Palatino Linotype,serif;font-size:clamp(2.2rem,6vw,3.8rem);font-weight:700}.hero p{color:var(--muted);max-width:460px;margin:0 0 28px;font-size:1.1rem;line-height:1.5}.btn-primary{background:linear-gradient(135deg, var(--gold), var(--ember));color:#1a1208;border-radius:var(--radius);cursor:pointer;border:none;padding:12px 26px;font-size:1rem;font-weight:700;text-decoration:none;display:inline-block}.btn-primary:hover{filter:brightness(1.08)}.topbar{background:var(--panel);border-bottom:1px solid var(--path-edge);justify-content:space-between;align-items:center;gap:16px;padding:12px 20px;display:flex}.topbar-left{align-items:center;gap:10px;display:flex}.logo{font-size:1.4rem}.topbar-title{font-family:Georgia,Palatino Linotype,serif;font-weight:700}.topbar-nav{gap:8px;display:flex}.topbar-nav button{color:var(--muted);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:8px;padding:6px 14px;font-weight:600}.topbar-nav .nav-on{color:var(--gold);border-color:var(--gold)}.btn-ghost{color:var(--muted);border:1px solid var(--path-edge);cursor:pointer;background:0 0;border-radius:8px;padding:6px 14px}.stub-main{width:100%;max-width:960px;margin:0 auto;padding:20px}.stub-note{color:var(--muted);margin:0 0 16px;font-size:.95rem}.td-grid{aspect-ratio:12/8;border:2px solid var(--path-edge);background:#0f160c;border-radius:10px;gap:3px;width:100%;max-width:840px;padding:8px;display:grid}.td-cell{cursor:pointer;border-radius:4px;justify-content:center;align-items:center;font-size:.65rem;font-weight:700;transition:filter .15s,outline .15s;display:flex}.td-grass{background:var(--grass)}.td-path{background:var(--path);box-shadow:inset 0 0 0 1px var(--path-edge)}.td-spawn{background:var(--spawn);color:var(--text)}.td-castle{background:var(--stone);color:#3a3020;font-size:1rem}.td-tower{background:var(--grass-2)}.td-buildable{outline:1px dashed var(--gold)}.td-hover{filter:brightness(1.2)}.td-zombie{box-shadow:inset 0 0 0 2px var(--blood)}.td-tower-selected{outline:2px solid var(--gold)}.tower-wrapper{cursor:pointer;flex-direction:column;justify-content:center;align-items:center;display:flex}.tower-icon,.zombie-icon{font-size:1rem}.tower-level{color:var(--gold);font-size:.65rem}.play-layout,.play-container{width:100%;max-width:960px;margin:0 auto;padding:16px 20px 32px}.play-header,.hud{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;display:flex}.wave-info{gap:16px;font-weight:700;display:flex}.wave-label{color:var(--gold)}.lives-label{color:var(--blood)}.points-label{color:var(--stone)}.btn-wave,.btn-buy,.btn-upgrade,.btn-sso{background:linear-gradient(135deg, var(--gold), var(--ember));color:#1a1208;border-radius:var(--radius);cursor:pointer;border:none;padding:10px 18px;font-weight:700}.btn-wave:disabled,.btn-buy:disabled,.btn-upgrade:disabled{opacity:.45;cursor:not-allowed}.flavor-banner,.error-banner{border-radius:8px;align-items:center;gap:8px;margin-bottom:12px;padding:10px 14px;display:flex}.flavor-banner{border:1px solid var(--path-edge);color:var(--stone);background:#24301c}.error-banner{border:1px solid var(--blood);color:var(--text);cursor:pointer;background:#3a1a16}.gun-selector,.tower-panel,.shop-panel{background:var(--panel);border:1px solid var(--path-edge);border-radius:var(--radius);margin-top:14px;padding:14px}.gun-list,.shop-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px;display:grid}.gun-btn,.shop-card{border:1px solid var(--path-edge);color:var(--text);cursor:pointer;text-align:left;background:#24301c;border-radius:8px;padding:10px}.gun-active,.card-selected{border-color:var(--gold)}.gun-locked{opacity:.5;cursor:not-allowed}.shop-header{justify-content:space-between;align-items:center;display:flex}.shop-title{margin:0;font-family:Georgia,Palatino Linotype,serif}.shop-points{color:var(--gold);font-weight:700}.shop-tabs{gap:8px;margin:12px 0;display:flex}.shop-tabs button{color:var(--muted);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:8px;padding:6px 12px}.shop-tabs .tab-on{color:var(--gold);border-color:var(--gold)}.landing{text-align:center;background:radial-gradient(at 78% 42%,#e4b23c38 0%,#0000 42%),radial-gradient(at 12% 60%,#5c1f1a59 0%,#0000 40%),linear-gradient(#1a2214 0%,#141a10 55%,#0e120b 100%);justify-content:center;align-items:center;min-height:100vh;padding:48px 24px;display:flex}.landing-badge,.hero-badge{color:var(--gold);letter-spacing:.08em;text-transform:uppercase;background:#e4b23c24;border:1px solid #e4b23c59;border-radius:999px;margin-bottom:20px;padding:6px 16px;font-size:.85rem;font-weight:700;display:inline-block}.landing-title{color:var(--stone);margin:0 0 14px;font-family:Georgia,Palatino Linotype,serif;font-size:clamp(2.2rem,6vw,3.8rem)}.landing-subtitle{color:var(--muted);max-width:460px;margin:0 auto 28px;font-size:1.1rem;line-height:1.5}.landing-features{flex-wrap:wrap;justify-content:center;gap:16px;margin-bottom:28px;display:flex}.feature-card{background:var(--panel);border:1px solid var(--path-edge);border-radius:var(--radius);width:200px;padding:16px}.feature-card h3{margin:8px 0 6px;font-family:Georgia,serif}.feature-card p{color:var(--muted);margin:0;font-size:.9rem}.btn-sso{text-decoration:none;display:inline-block}.landing-hint{color:var(--muted);margin-top:12px;font-size:.85rem}.gameover{background:radial-gradient(ellipse at 50% 40%, #c1121f40, transparent 50%), var(--bg);justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.gameover-card{background:var(--panel);border:1px solid var(--path-edge);text-align:center;border-radius:16px;max-width:420px;padding:32px}.gameover-title{color:var(--stone);font-family:Georgia,serif}.gameover-sub{color:var(--muted)}.gameover-stats{color:var(--gold);margin:16px 0;font-size:1.4rem;font-weight:700}@media (width<=768px){.topbar{flex-wrap:wrap}.topbar-nav{order:3;justify-content:center;width:100%}.play-layout,.play-container{padding:12px}.td-grid{max-width:100%}.gun-list,.shop-grid{grid-template-columns:1fr}.landing-features{flex-direction:column;align-items:center}.feature-card{width:100%;max-width:300px}}