@import"https://fonts.googleapis.com/css2?family=Cinzel:wght@700;900&family=Exo+2:wght@300;400;600;700&display=swap";:root{--blue: #0033AD;--sky: #00B4FF;--gold: #FFD700;--teal: #00E5FF;--dark: #000B2E;--panel: rgba(0, 20, 70, .95);--border: rgba(0, 180, 255, .35)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:"Exo 2",sans-serif;background:var(--dark);overflow:hidden;color:#fff}.hud{position:fixed;top:0;left:0;right:0;display:flex;justify-content:space-between;align-items:flex-start;padding:14px 18px;pointer-events:none;z-index:10;gap:10px}.hud-chip{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:8px 16px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.hud-label{font-size:10px;text-transform:uppercase;letter-spacing:2px;color:var(--sky);margin-bottom:2px}.hud-val{font-family:Cinzel,serif;font-size:20px}.hud-val.gold{color:var(--gold);text-shadow:0 0 12px rgba(255,215,0,.5)}.hud-val.teal{color:var(--teal)}.pips{display:flex;gap:6px;align-items:center;margin-top:4px}.pip{width:11px;height:11px;border-radius:50%;border:2px solid var(--sky);transition:all .3s}.pip.done{background:var(--gold);border-color:var(--gold);box-shadow:0 0 8px var(--gold)}.pip.near{background:var(--sky);animation:pulse 1s infinite}@keyframes pulse{0%,to{box-shadow:0 0 4px var(--sky)}50%{box-shadow:0 0 14px var(--sky)}}.interact-hint{position:fixed;bottom:100px;left:50%;transform:translate(-50%);background:var(--panel);border:1px solid var(--border);border-radius:30px;padding:10px 22px;color:var(--sky);font-size:13px;letter-spacing:1px;pointer-events:none;z-index:10;animation:bob 2s ease-in-out infinite}.interact-hint kbd{background:#ffffff26;border-radius:4px;padding:2px 8px;font-family:"Exo 2",sans-serif;font-weight:700;color:#fff;border:1px solid rgba(255,255,255,.3)}@keyframes bob{0%,to{transform:translate(-50%) translateY(0)}50%{transform:translate(-50%) translateY(-6px)}}.controls-bar{position:fixed;bottom:16px;left:50%;transform:translate(-50%);display:flex;gap:12px;pointer-events:none;z-index:10}.ctrl{background:#ffffff0f;border:1px solid rgba(255,255,255,.15);border-radius:8px;padding:6px 12px;font-size:11px;color:#ffffff80;letter-spacing:1px}.lb-btn{position:fixed;top:14px;right:18px;background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:8px 16px;color:var(--sky);font-family:"Exo 2",sans-serif;font-size:13px;font-weight:600;cursor:pointer;letter-spacing:1px;z-index:20;transition:all .2s}.lb-btn:hover{background:#0064ff4d}.toast{position:fixed;top:76px;left:50%;transform:translate(-50%);border-radius:30px;padding:9px 22px;font-size:13px;pointer-events:none;z-index:50;transition:opacity .4s;white-space:nowrap}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;z-index:100;background:#000514c7;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.card{background:linear-gradient(160deg,#001e5afc,#000a32fc);border:1px solid var(--border);border-radius:20px;padding:36px;box-shadow:0 0 60px #0064ff33;position:relative;overflow:hidden}.card:before{content:"";position:absolute;top:0;left:50%;transform:translate(-50%);width:60%;height:2px;background:linear-gradient(90deg,transparent,var(--sky),transparent)}.panel-icon{font-size:52px;text-align:center;margin-bottom:6px}.panel-title{font-family:Cinzel,serif;font-size:26px;color:var(--gold);text-align:center;margin-bottom:4px;text-shadow:0 0 20px rgba(255,215,0,.4)}.panel-sub{text-align:center;color:var(--sky);font-size:11px;letter-spacing:2px;text-transform:uppercase;margin-bottom:22px}.lesson{background:#0064ff14;border-left:3px solid var(--sky);border-radius:0 8px 8px 0;padding:11px 15px;margin-bottom:10px;font-size:13.5px;line-height:1.7;color:#ffffffe6}.lesson b{color:var(--teal)}.quiz-prog{display:flex;gap:5px;margin-bottom:18px}.qdot{height:4px;flex:1;border-radius:2px;background:#ffffff1f;transition:background .3s}.qdot.answered{background:var(--gold)}.qdot.current{background:var(--sky)}.q-text{font-size:17px;font-weight:600;margin-bottom:20px;line-height:1.5}.opts{display:grid;gap:9px}.opt{padding:13px 17px;background:#ffffff0d;border:1px solid rgba(255,255,255,.15);border-radius:10px;cursor:pointer;font-family:"Exo 2",sans-serif;font-size:13.5px;color:#ffffffe6;text-align:left;transition:all .15s;width:100%}.opt:hover:not(:disabled){background:#00b4ff1f;border-color:var(--sky)}.opt.correct{background:#00ff6426!important;border-color:#00ff64!important;color:#00ff64!important}.opt.wrong{background:#ff323226!important;border-color:#ff3232!important;color:#ff8080!important}.feedback{margin-top:14px;padding:11px 15px;border-radius:8px;font-size:13px;line-height:1.5}.feedback.ok{background:#00ff6414;color:#00ff64;border:1px solid rgba(0,255,100,.25)}.feedback.bad{background:#ff323214;color:#ff8080;border:1px solid rgba(255,50,50,.25)}.btn{display:block;width:100%;padding:13px;border-radius:11px;font-family:"Exo 2",sans-serif;font-size:15px;font-weight:700;cursor:pointer;letter-spacing:1.5px;text-transform:uppercase;transition:all .2s;margin-top:14px;border:none}.btn-primary{background:linear-gradient(135deg,var(--blue),#0055DD);color:#fff;border:1px solid var(--sky)}.btn-primary:hover{background:linear-gradient(135deg,#0055DD,var(--sky));box-shadow:0 0 20px #00b4ff66;transform:translateY(-2px)}.btn-secondary{background:#00b4ff1f;color:var(--sky);border:1px solid var(--sky)}.btn-secondary:hover{background:#00b4ff38}.btn-ghost{background:#ffffff0d;color:#fff9;border:1px solid rgba(255,255,255,.15)}.btn-ghost:hover{background:#ffffff1a}.end-score{font-family:Cinzel,serif;font-size:60px;color:#fff;margin:12px 0;text-shadow:0 0 30px rgba(0,180,255,.6);text-align:center}.end-stats{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px;margin:20px 0}.estat{background:#ffffff0a;border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:14px 8px;text-align:center}.estat-val{font-size:22px;font-weight:700;color:var(--teal)}.estat-lbl{font-size:10px;color:#ffffff73;text-transform:uppercase;letter-spacing:1px;margin-top:3px}.lb-row{display:flex;align-items:center;gap:12px;padding:11px 15px;border-radius:10px;margin-bottom:7px;background:#ffffff0a;border:1px solid rgba(255,255,255,.08)}.lb-rank{font-family:Cinzel,serif;font-size:17px;width:32px;color:#fff6}.lb-rank.g{color:var(--gold)}.lb-rank.s{color:silver}.lb-rank.b{color:#cd7f32}.lb-name{flex:1;font-weight:600;font-size:14px}.lb-score{font-family:Cinzel,serif;color:var(--teal);font-size:17px}.lb-meta{font-size:11px;color:#ffffff59;text-align:right}.intro-logo{font-family:Cinzel,serif;font-size:44px;font-weight:900;line-height:1.1;background:linear-gradient(135deg,var(--sky),var(--gold));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-align:center;margin-bottom:6px}.intro-sub{text-align:center;font-size:12px;letter-spacing:4px;color:var(--sky);text-transform:uppercase;margin-bottom:28px;opacity:.8}.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-bottom:24px}.intro-item{display:flex;align-items:center;gap:9px;padding:8px 12px;background:#ffffff0a;border:1px solid rgba(255,255,255,.08);border-radius:8px;font-size:12.5px;color:#ffffffa6}.name-row{display:flex;gap:8px;margin-bottom:14px}.name-input{flex:1;background:#ffffff0f;border:1px solid var(--border);border-radius:10px;padding:11px 15px;color:#fff;font-family:"Exo 2",sans-serif;font-size:14px;outline:none}.name-input:focus{border-color:var(--sky)}.name-input::placeholder{color:#ffffff47}.diff-btns{display:flex;gap:8px;margin-bottom:14px}.diff-btn{flex:1;padding:9px;background:#ffffff0d;border:1px solid rgba(255,255,255,.15);border-radius:8px;color:#fff9;font-family:"Exo 2",sans-serif;font-size:12px;cursor:pointer;transition:all .2s;text-align:center}.diff-btn.active{background:#00b4ff26;border-color:var(--sky);color:var(--sky)}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:#ffffff0a}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}