:root{--bg-color: #0b0f19;--panel-bg: rgba(25, 30, 45, .85);--panel-border: rgba(0, 139, 139, .3);--text-color: #f1f5f9;--text-muted: #94a3b8;--accent-color: #008b8b;--accent-secondary: #ff4000;--font-main: "Inter", system-ui, -apple-system, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-color);font-family:var(--font-main);overflow:hidden;-webkit-user-select:none;user-select:none}.game-container{position:relative;width:100vw;height:100vh}.canvas-container{position:absolute;top:0;left:0;width:100%;height:100%;background-color:#05080f;cursor:grab;z-index:1}.canvas-container:active{cursor:grabbing}.simulation-canvas{position:absolute;top:0;left:0;width:100%;height:100%}.glass-panel{background:var(--panel-bg);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--panel-border)}.top-hud{position:absolute;top:90px;left:20px;right:20px;display:flex;justify-content:space-between;align-items:flex-start;z-index:100;pointer-events:none}.top-hud>*{pointer-events:auto}.burst-hud{display:flex;flex-direction:column;align-items:center;gap:5px;background:#00141eb3;border:1px solid rgba(0,255,255,.3);border-radius:10px;padding:6px 12px;flex:1;margin:0 12px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.burst-hud.hidden{display:none}.burst-hud-label{font-size:.75rem;color:#0ff;font-weight:600;letter-spacing:.05em;white-space:nowrap}.burst-bar-track{width:100%;height:5px;background:#00ffff26;border-radius:3px;overflow:hidden}.burst-bar-fill{height:100%;width:0%;background:linear-gradient(90deg,#0ff,#008b8b);border-radius:3px}.currency-display{display:flex;flex-direction:column;align-items:flex-start;padding:15px 20px;border-radius:12px;box-shadow:0 10px 30px #00000080}.joule-counter{font-size:2.2rem;font-weight:700;color:var(--accent-secondary);text-shadow:0 0 15px rgba(255,64,0,.5);line-height:1.2;display:flex;align-items:baseline;gap:8px}#jouleValue{display:inline-block;min-width:4.5em;text-align:right;font-variant-numeric:tabular-nums}.joule-rate{font-size:1.1rem;color:var(--accent-color);font-weight:700;align-self:flex-end}.top-right-controls{display:flex;gap:10px}.icon-btn{background:var(--panel-bg);border:1px solid var(--panel-border);color:#fff;width:48px;height:48px;border-radius:50%;font-size:1.5rem;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 15px #0000004d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:transform .2s}.icon-btn:hover{transform:scale(1.1)}.tab-content{display:none;flex-direction:column;height:100%;overflow-y:auto}.tab-content.active{display:flex}.tab-content h2{font-size:1.5rem;color:var(--text-color);margin-bottom:1.5rem;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:.5rem}.shop{display:flex;flex-direction:column;gap:1rem}.shop-item{display:flex;justify-content:space-between;align-items:center;background:#ffffff0d;padding:1rem;border-radius:8px;border:1px solid rgba(255,255,255,.1);transition:transform .2s,background .2s}.shop-item:hover{background:#ffffff14}.item-info{display:flex;flex-direction:column;max-width:65%}.item-name{font-weight:700;font-size:1rem}.item-desc{font-size:.85rem;color:var(--text-muted);margin-top:4px}.btn-primary{background:linear-gradient(135deg,var(--accent-color),var(--accent-secondary));color:#fff;padding:10px 15px;border-radius:6px;font-weight:600;border:none;cursor:pointer;transition:transform .2s,box-shadow .2s,filter .2s;white-space:nowrap}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 5px 15px #ff400066}.btn-primary:active{transform:translateY(1px)}.btn-primary.disabled{filter:grayscale(100%);opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}.btn-danger{background:linear-gradient(135deg,#b91c1c,#7f1d1d);color:#fff;padding:15px;width:100%;border-radius:8px;font-weight:800;border:none;text-transform:uppercase;letter-spacing:1px}.btn-danger:disabled{opacity:.3;cursor:not-allowed}.btn-danger:hover:not(:disabled){background:linear-gradient(135deg,#dc2626,#991b1b)}.prestige-section{text-align:center;padding-top:1rem}.constants-counter{color:#a855f7;font-weight:700;margin-bottom:1.5rem;font-size:1.2rem}.nav-btn{flex:1;background:transparent;color:var(--text-muted);border:none;font-size:1.1rem;font-weight:700;cursor:pointer;padding:15px 0;transition:color .2s}.nav-btn.active{color:var(--accent-color)}@media (min-width: 768px){.bottom-nav{display:none}.top-hud{right:420px}.side-panel{position:absolute;top:90px;right:20px;bottom:20px;width:380px;border-radius:12px;z-index:100;display:flex;flex-direction:column;box-shadow:-5px 0 30px #00000080}.desktop-nav{display:flex;border-bottom:1px solid var(--panel-border)}.desktop-nav .nav-btn.active{border-bottom:2px solid var(--accent-color)}.tab-content{padding:20px}}@media (max-width: 767px){.desktop-nav{display:none}.bottom-nav{position:absolute;bottom:0;left:0;right:0;height:60px;display:flex;z-index:110;border-top:1px solid var(--panel-border);border-radius:20px 20px 0 0}.bottom-nav .nav-btn.active{border-top:3px solid var(--accent-color)}.side-panel{position:absolute;bottom:60px;left:0;right:0;height:45vh;border-top:1px solid var(--panel-border);border-radius:20px 20px 0 0;z-index:100;box-shadow:0 -10px 30px #00000080;display:none;padding:20px}.side-panel.open{display:flex;flex-direction:column}.joule-counter{font-size:1.8rem}.shop-item{flex-direction:column;align-items:stretch;gap:15px}.item-info{max-width:100%}}#prestige-confirm-modal,#victory-screen{position:fixed;top:0;left:0;width:100vw;height:100vh;background:#000000d9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;justify-content:center;align-items:center;z-index:1000;transition:opacity .3s}#prestige-confirm-modal.hidden,#victory-screen.hidden{display:none}.modal-content{text-align:center;padding:40px;max-width:500px;border-radius:16px;border:1px solid var(--panel-border);box-shadow:0 20px 50px #00000080;animation:modalPop .3s cubic-bezier(.34,1.56,.64,1)}@keyframes modalPop{0%{transform:scale(.8);opacity:0}to{transform:scale(1);opacity:1}}.modal-actions{display:flex;gap:15px;justify-content:center}.btn-secondary{background:#ffffff1a;color:#fff;padding:12px 24px;border-radius:8px;border:1px solid rgba(255,255,255,.2);cursor:pointer;font-weight:600;transition:background .2s}.btn-secondary:hover{background:#ffffff26}#victory-screen{background:#000000f2}.victory-content{text-align:center;padding:40px;max-width:600px;border-radius:12px;border:1px solid rgba(255,215,0,.3);box-shadow:0 0 30px #ffd70033}.victory-content h1{color:gold;font-size:3rem;margin-bottom:20px;text-shadow:0 0 10px rgba(255,215,0,.5)}.rebirth-shop-header{display:flex;flex-direction:column;gap:2px;margin:1.5rem 0 .75rem;padding:10px 14px;background:#a855f71a;border:1px solid rgba(168,85,247,.35);border-radius:8px;font-weight:700;font-size:1rem;color:#c084fc;letter-spacing:.04em}.rebirth-shop-subtitle{font-size:.78rem;color:#a78bfa;font-weight:400;opacity:.8}.rebirth-shop{gap:.75rem}.rebirth-item{border-color:#a855f740;background:#a855f70f}.rebirth-item:hover{background:#a855f71f;border-color:#a855f773}.rebirth-name{color:#c084fc}.btn-rebirth{background:linear-gradient(135deg,#7c3aed,#a855f7);color:#fff;padding:10px 15px;border-radius:6px;font-weight:600;border:none;cursor:pointer;transition:transform .2s,box-shadow .2s,filter .2s;white-space:nowrap}.btn-rebirth:hover{transform:translateY(-2px);box-shadow:0 5px 15px #a855f780}.btn-rebirth:active{transform:translateY(1px)}.btn-rebirth.disabled{filter:grayscale(60%);opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}.icon-btn{display:flex;align-items:center;justify-content:center;line-height:1;font-size:1.4rem;width:36px;height:36px;background:none;border:none;cursor:pointer;padding:0}.tutorial-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000e0;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;z-index:1100}.tutorial-overlay.hidden{display:none}.tutorial-panel{max-width:480px;width:90%;padding:2rem;border-radius:18px;text-align:center;border:1px solid var(--panel-border);animation:modalPop .35s cubic-bezier(.34,1.56,.64,1)}.tutorial-title{font-size:1.5rem;color:var(--accent-color);margin-bottom:.3rem}.tutorial-subtitle{color:var(--text-muted);font-size:.9rem;margin-bottom:1.25rem}.tutorial-desc{font-size:.93rem;line-height:1.6;margin-bottom:1.5rem;color:var(--text-muted)}.tutorial-desc strong{color:var(--text-color)}.tutorial-btn{width:100%;padding:14px;font-size:1rem}.tut-webp{width:100%;max-width:320px;height:auto;margin:0 auto 1.5rem;border-radius:12px;border:1px solid rgba(0,139,139,.2);display:block;box-shadow:0 4px 20px #0006}#nav{position:fixed;top:0;left:0;width:100%;height:5rem;z-index:10000;display:flex;justify-content:center;align-items:center;background:#191e2d;border-bottom:1px solid var(--panel-border);transition:all .4s cubic-bezier(.4,0,.2,1)}#nav ul{list-style:none;margin:0;padding:0;display:flex;gap:4rem}#nav ul li{margin:0}#nav ul li a{text-decoration:none;color:var(--text-color);font-weight:500;font-size:.85rem;text-transform:uppercase;letter-spacing:.15rem;transition:all .3s ease;padding:.6rem 1.2rem;position:relative;display:inline-block}#nav ul li a:after{content:"";position:absolute;bottom:0;left:50%;width:0;height:2px;background:var(--accent-color);transition:all .3s ease;transform:translate(-50%)}#nav ul li a:hover{color:#fff;text-shadow:0 0 8px var(--accent-color)}#nav ul li a:hover:after{width:30%;background:var(--accent-color)}@media screen and (max-width: 767px){#nav{height:4rem}#nav ul{gap:1.5rem}#nav ul li a{font-size:.75rem;padding:.5rem .8rem;letter-spacing:.1rem}}