:root{--accent: #c08a3a;--accent-d: #9a6c27;--bg: #1b1712;--panel: #261f17;--panel-2: #2f2719;--text: #f1e7d6;--muted: #b09a7d;--good: #5fae6a;--bad: #cf5b4e;--rubble: #6b6256}*{box-sizing:border-box}html,body{margin:0;background:radial-gradient(circle at 50% 0%,#2a2218,var(--bg));color:var(--text);font-family:Segoe UI,system-ui,-apple-system,sans-serif}#app{max-width:760px;margin:0 auto;padding:18px 16px 40px}.topbar{text-align:center;margin-bottom:14px}.topbar h1{margin:0;font-size:30px;letter-spacing:4px;color:var(--accent);text-shadow:0 2px 0 #00000055}.tagline{margin:4px 0 0;color:var(--muted);font-size:14px}.controls{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:16px}.seg{display:flex;background:var(--panel);border-radius:10px;overflow:hidden}.seg button{background:transparent;border:none;color:var(--muted);padding:8px 14px;cursor:pointer;font-size:14px}.seg button.active{background:var(--accent);color:#1b1712;font-weight:700}.main{display:grid;grid-template-columns:200px 1fr;gap:16px}@media(max-width:620px){.main{grid-template-columns:1fr}}.tower-panel{background:var(--panel);border-radius:12px;padding:12px;display:flex;flex-direction:column}.tower-meta{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);margin-bottom:8px}.tower-meta .lvl{color:var(--accent);font-weight:700}.tower{position:relative;flex:1;min-height:280px;background:linear-gradient(#15110c,#211a12);border:1px solid #3a2f1f;border-radius:8px;overflow:hidden}.clear-line{position:absolute;left:0;right:0;border-top:2px dashed var(--accent);opacity:.8;z-index:2}.stack{position:absolute;left:8px;right:8px;bottom:0;display:flex;flex-direction:column-reverse}.block{display:flex;align-items:center;justify-content:center;font-size:11px;border-radius:4px;margin-top:2px;overflow:hidden;white-space:nowrap;min-height:16px}.block.stable{background:linear-gradient(var(--accent),var(--accent-d));color:#1b1712;font-weight:600;box-shadow:inset 0 1px #fff4}.block.rubble{background:repeating-linear-gradient(45deg,var(--rubble),var(--rubble) 4px,#57503f 4px,#57503f 8px);color:#1b1712;transform:rotate(-.5deg)}.cleared-note{margin-top:8px;color:var(--good);font-size:13px;text-align:center}.quiz-panel{background:var(--panel);border-radius:12px;padding:16px}.region{display:inline-block;background:var(--panel-2);color:var(--muted);padding:3px 10px;border-radius:99px;font-size:12px;margin-bottom:8px}.prompt{margin:0 0 14px;font-size:20px}.options{display:grid;gap:8px}.opt{background:var(--panel-2);border:1px solid #3a2f1f;color:var(--text);padding:12px 14px;border-radius:8px;cursor:pointer;font-size:16px;text-align:left;transition:background .1s}.opt:hover:not(:disabled){background:#3a3120}.opt:disabled{cursor:default}.opt.correct{background:var(--good);color:#10210f;border-color:var(--good);font-weight:700}.opt.dim{opacity:.45}.feedback{margin-top:12px;font-size:14px}.feedback.good{color:var(--good)}.feedback.bad{color:var(--bad)}.next{margin-top:12px;background:var(--accent);border:none;color:#1b1712;font-weight:700;padding:11px 18px;border-radius:8px;cursor:pointer;font-size:15px}.next:hover{background:var(--accent-d)}.stats{margin-top:14px;color:var(--muted);font-size:13px}.gameover{text-align:center}.gameover h2{color:var(--accent);margin:0 0 8px}.foot{text-align:center;margin-top:18px;color:var(--muted);font-size:12px}