:root{--bg-dark: #070d1e;--surface-glass: rgba(11, 29, 58, .85);--surface-glass-border: rgba(0, 229, 255, .3);--surface-glass-hover: rgba(0, 229, 255, .2);--iub-navy: #0b1d3a;--iub-blue: #0077b6;--neon-cyan: #00e5ff;--neon-gold: #ffb703;--neon-green: #06d6a0;--neon-magenta: #ff0077;--text-main: #ffffff;--text-muted: rgba(255, 255, 255, .88);--text-dim: rgba(255, 255, 255, .55);--glow-cyan: 0 0 25px rgba(0, 229, 255, .65);--glow-gold: 0 0 30px rgba(255, 183, 3, .75);--glass-shadow: 0 12px 40px 0 rgba(0, 0, 0, .75);--font-display: "Outfit", sans-serif;--font-body: "Inter", sans-serif}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0;user-select:none;-webkit-user-select:none}html,body{width:100%;height:100%;overflow:hidden;background-color:var(--bg-dark);font-family:var(--font-body);color:var(--text-main)}#game-canvas{position:absolute;top:0;left:0;width:100vw;height:100vh;z-index:1;display:block}#ui-root{position:absolute;top:0;left:0;width:100vw;height:100vh;z-index:10;pointer-events:none}.ui-screen{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;justify-content:center;align-items:center;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease}.ui-screen.active{opacity:1;visibility:visible}.glass-card{background:var(--surface-glass);backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px);border:1px solid var(--surface-glass-border);border-radius:24px;box-shadow:var(--glass-shadow);padding:36px 52px;text-align:center;max-width:580px;width:90%;pointer-events:auto}.brand-logo-img{width:130px;height:auto;margin-bottom:12px;filter:drop-shadow(0 0 15px rgba(0,229,255,.6))}.glow-title{font-family:var(--font-display);font-size:2.6rem;font-weight:900;letter-spacing:2px;background:linear-gradient(135deg,#ffffff 0%,var(--neon-cyan) 50%,var(--neon-gold) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:6px}.subtitle{font-family:var(--font-display);font-size:1.1rem;font-weight:800;letter-spacing:4px;color:var(--neon-gold);margin-bottom:24px}.high-score-badge{background:#ffb70326;border:1px solid rgba(255,183,3,.4);padding:10px 20px;border-radius:30px;font-weight:800;color:var(--neon-gold);display:inline-block;margin-bottom:20px;box-shadow:var(--glow-gold)}.sensitivity-preset-bar{display:flex;align-items:center;justify-content:center;gap:8px;margin-bottom:20px}.preset-label{font-size:.8rem;font-weight:800;color:var(--text-muted);margin-right:4px}.sens-chip{background:#ffffff14;border:1px solid var(--surface-glass-border);color:var(--text-muted);padding:6px 14px;border-radius:20px;font-size:.85rem;font-weight:800;cursor:pointer;transition:all .2s ease}.sens-chip.active{background:#00e5ff40;border-color:var(--neon-cyan);color:#fff;box-shadow:var(--glow-cyan)}.neon-btn{font-family:var(--font-display);font-size:1.05rem;font-weight:800;letter-spacing:1px;padding:16px 32px;border-radius:14px;border:none;cursor:pointer;transition:all .25s cubic-bezier(.175,.885,.32,1.275);display:inline-block;margin:10px}.primary-btn{background:linear-gradient(135deg,var(--neon-cyan),var(--iub-blue));color:#fff;box-shadow:var(--glow-cyan)}.primary-btn:hover{transform:translateY(-3px) scale(1.03);box-shadow:0 0 35px #00e5ffcc}.secondary-btn{background:#ffffff1a;color:var(--text-main);border:1px solid var(--surface-glass-border)}.secondary-btn:hover{background:#fff3;transform:translateY(-2px)}.controls-guide{font-size:.85rem;color:var(--text-muted);margin-top:16px;line-height:1.5}.hud-top-bar{position:absolute;top:24px;left:24px;display:flex;gap:18px;pointer-events:auto}.hud-stat{background:var(--surface-glass);backdrop-filter:blur(16px);border:1px solid var(--surface-glass-border);padding:12px 24px;border-radius:16px;font-family:var(--font-display);font-weight:800;font-size:1.15rem;box-shadow:var(--glass-shadow)}.main-score{color:var(--neon-cyan);border-color:#00e5ff66}.multiplier-tag{color:var(--neon-gold);margin-left:8px}.tier-badge{color:var(--neon-gold);border-color:#ffb70366}#pip-container{position:absolute;top:24px;right:24px;width:220px;height:165px;background:#000;border:2px solid var(--neon-cyan);border-radius:16px;overflow:hidden;box-shadow:var(--glow-cyan);pointer-events:auto}#pip-canvas{width:100%;height:100%;display:block}.pip-action-badge{position:absolute;bottom:8px;left:10px;font-size:.75rem;font-weight:800;color:var(--neon-green);background:#0009;padding:2px 8px;border-radius:6px}.hud-bottom-bar{position:absolute;bottom:24px;right:24px;display:flex;gap:16px;pointer-events:auto}.powerup-badge{background:#ffb70338;border:1px solid var(--neon-gold);color:var(--neon-gold);padding:12px 20px;border-radius:14px;font-weight:800;box-shadow:var(--glow-gold)}