:root{--navy: #0b1b3a;--navy-2: #13284f;--blue: #3b82f6;--orange: #f97316;--text: #e8eefc;--muted: #9db0d0;--card: #162a52;--ok: #22c55e;--bad: #ef4444;--radius: 16px;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}html,body{margin:0;padding:0;width:100%;height:100%;background:var(--navy);color:var(--text);overflow:hidden}#app{width:100%;height:100%;position:relative}#game-container{width:100%;height:100%}#ui-overlay{position:absolute;inset:0;pointer-events:none;display:flex;align-items:stretch;justify-content:center}#ui-overlay>*{pointer-events:auto}.screen{width:min(480px,100%);max-height:100%;overflow:auto;padding:20px 16px 32px;background:linear-gradient(180deg,#0b1b3a,#101f42)}.screen.wide{width:min(920px,100%)}h1,h2,h3{margin:0 0 12px}.muted{color:var(--muted)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:14px;padding:14px 18px;font-weight:700;font-size:16px;cursor:pointer;transition:transform .08s ease,opacity .15s ease}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg,var(--blue),#2563eb);color:#fff;width:100%}.btn-secondary{background:var(--card);color:var(--text);width:100%;border:1px solid #27406e}.btn-ghost{background:transparent;color:var(--muted);border:1px solid #2a4068}.btn-row{display:grid;gap:10px;margin-top:16px}.card{background:var(--card);border:1px solid #243a66;border-radius:var(--radius);padding:14px 16px;margin-bottom:10px}.card.selectable{cursor:pointer}.card.selectable:hover{border-color:var(--blue)}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:10px}.grid-levels{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}.level-cell{aspect-ratio:1;border-radius:12px;border:1px solid #2a4068;background:#13284f;display:flex;flex-direction:column;align-items:center;justify-content:center;font-weight:700;cursor:pointer}.level-cell.locked{opacity:.35;cursor:not-allowed}.level-cell.done{border-color:#3b82f6}.stars{color:#fbbf24;font-size:12px;letter-spacing:1px}.answer{background:#1a315c;border:2px solid #2d4a7a;border-radius:14px;padding:16px;text-align:center;font-size:20px;font-weight:700;cursor:pointer}.answer.correct{border-color:var(--ok);background:#163528}.answer.wrong{border-color:var(--bad);background:#3a1a1a}.answer.disabled{pointer-events:none;opacity:.7}.hud{display:flex;justify-content:space-between;gap:8px;margin-bottom:16px;font-weight:600}.logo-row{display:flex;align-items:center;gap:12px;margin-bottom:20px}.logo-mark{width:48px;height:48px;border-radius:12px;background:linear-gradient(135deg,#3b82f6 0% 50%,#f97316 50% 100%)}.progress-bar{height:8px;background:#1a315c;border-radius:99px;overflow:hidden;margin:8px 0 16px}.progress-bar>span{display:block;height:100%;background:linear-gradient(90deg,var(--blue),var(--orange))}.memory-board{display:grid;gap:8px;margin:12px 0}.mem-card{aspect-ratio:1;border-radius:12px;background:#1e3a6e;display:flex;align-items:center;justify-content:center;font-size:28px;cursor:pointer;border:2px solid #2d4a7a;user-select:none}.mem-card.face{background:#0f274f}.mem-card.matched{opacity:.55;border-color:var(--ok)}.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%);background:#1e3a6e;padding:10px 16px;border-radius:999px;font-size:14px}@media (min-width: 900px){.screen{padding-top:32px}.screen.wide{width:min(1000px,100%)}}