:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#1a1e1a;--panel:#0e1210d1;--line:#ffffff1f;--text:#eef2ea;--muted:#b5c0ae;--accent:#e2b15a;--ok:#3dba6a;--bad:#d64545;--tap:48px;font-family:Segoe UI,system-ui,sans-serif}*{box-sizing:border-box}html,body{background:var(--bg);width:100%;height:100dvh;color:var(--text);touch-action:none;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;margin:0;overflow:hidden}#game{touch-action:none;width:100%;height:100%;display:block;position:fixed;inset:0}#hud{pointer-events:none;padding:calc(10px + env(safe-area-inset-top)) 12px calc(12px + env(safe-area-inset-bottom));flex-direction:column;justify-content:space-between;display:flex;position:fixed;inset:0}.top-bar,.dock,.hint{pointer-events:none}.top-bar,.dock button,.picker{pointer-events:auto}.top-bar{justify-content:space-between;align-items:center;gap:12px;display:flex}.nav-tools{pointer-events:auto;gap:8px;display:flex}.brand{background:var(--panel);border:1px solid var(--line);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:14px;flex-direction:column;gap:2px;padding:8px 12px;display:flex}.brand strong{letter-spacing:.02em;font-size:14px}.brand span{color:var(--muted);font-size:11px}.hint{left:50%;top:calc(64px + env(safe-area-inset-top));text-align:center;max-width:min(92vw,420px);color:var(--text);pointer-events:none;background:var(--panel);border:1px solid var(--line);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:999px;margin:0;padding:6px 12px;font-size:13px;position:absolute;transform:translate(-50%)}.dock{flex-direction:column;gap:8px;display:flex}.build-actions{gap:8px;display:flex}.build-actions button{flex:1}.build-actions .primary{flex:1.15}.build-actions[hidden]{display:none}button[hidden]{display:none!important}button{min-height:var(--tap);border:1px solid var(--line);background:var(--panel);color:var(--text);font:inherit;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:14px;padding:0 14px;font-size:14px;font-weight:600}button:active{transform:translateY(1px)}button.primary{background:#2f6a3c;border-color:#4ec56d}button.primary:disabled{border-color:var(--line);color:#8b9388;background:#3a3f3a}#btn-demolish.on{border-color:var(--bad);background:#6a2f2f}#btn-orbit.on{background:#2f3d5c;border-color:#7aa0e2}.picker{grid-template-columns:repeat(2,1fr);gap:8px;display:grid}.pick{text-align:left;align-items:center;gap:8px;min-height:64px;padding:8px 10px;display:flex}.pick.active{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}.swatch{border:2px solid #000;border-radius:8px;flex:none;width:28px;height:28px}.label{flex-direction:column;gap:1px;font-size:13px;display:flex}.label small{color:var(--muted);font-size:11px;font-weight:500}@media (width>=720px){#hud{padding:16px 20px 20px}.picker,.build-actions{width:100%;max-width:640px;margin:0 auto}.picker{grid-template-columns:repeat(4,1fr)}}