:root{--bg-color: #030712;--glass-bg: rgba(255, 255, 255, .05);--glass-border: rgba(255, 255, 255, .1);--primary: #4f46e5;--primary-glow: rgba(79, 70, 229, .3);--success: #10b981;--error: #ef4444;--text-primary: #f9fafb;--text-secondary: #9ca3af;--font-family: "Inter", system-ui, -apple-system, sans-serif}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-family);background-color:var(--bg-color);color:var(--text-primary);min-height:100vh;display:flex;justify-content:center;align-items:center;overflow:hidden;position:relative}body:before{content:"";position:absolute;top:-10%;left:-10%;width:40%;height:40%;background:radial-gradient(circle,var(--primary-glow) 0%,transparent 70%);z-index:-1;filter:blur(100px)}body:after{content:"";position:absolute;bottom:-10%;right:-10%;width:40%;height:40%;background:radial-gradient(circle,rgba(16,185,129,.1) 0%,transparent 70%);z-index:-1;filter:blur(100px)}#app{width:100%;max-width:600px;padding:1rem;z-index:1}.glass-card{background:var(--glass-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--glass-border);border-radius:24px;padding:2.5rem 2rem;width:100%;box-shadow:0 8px 32px #0000005e;display:flex;flex-direction:column;gap:2rem;animation:fadeIn .8s ease-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.header{margin-bottom:2.5rem}.title{font-size:3rem;font-weight:800;text-align:center;margin-bottom:.5rem;letter-spacing:-.02em;background:linear-gradient(135deg,#fff,#94a3b8);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;display:flex;justify-content:center;gap:.5rem;align-items:center}.title .accent{background:linear-gradient(135deg,var(--primary) 0%,#a5b4fc 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;filter:drop-shadow(0 0 10px var(--primary-glow))}.subtitle{color:var(--text-secondary);text-align:center;font-size:.875rem;font-weight:600;text-transform:uppercase;letter-spacing:.3em;opacity:.8;margin-top:-.5rem}.puzzle-container{display:flex;flex-direction:column;align-items:center;gap:1.5rem;min-height:200px;justify-content:center}.audio-visualizer{display:flex;align-items:center;gap:4px;height:40px}.bar{width:4px;background:var(--primary);border-radius:2px;transition:height .2s ease}.bar.animate{animation:wave 1s ease-in-out infinite}@keyframes wave{0%,to{height:10px}50%{height:40px}}.btn-primary{background:var(--primary);color:#fff;border:none;padding:1rem 2rem;border-radius:12px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;gap:.5rem;justify-content:center;width:100%}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 20px -5px var(--primary-glow);filter:brightness(1.1)}.btn-primary:active{transform:translateY(0)}.input-container{display:flex;flex-direction:column;gap:.75rem;width:100%}input{background:#ffffff08;border:1px solid var(--glass-border);border-radius:12px;padding:1rem;color:#fff;font-size:1.25rem;text-align:center;transition:all .2s ease}input:focus{outline:none;border-color:var(--primary);background:#ffffff0d;box-shadow:0 0 0 4px var(--primary-glow)}.options-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;width:100%}.btn-option{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:12px;padding:1.5rem 1rem;color:#fff;font-size:1.5rem;font-weight:700;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;justify-content:center}.btn-option:hover{background:#ffffff1a;border-color:var(--primary);transform:translateY(-2px);box-shadow:0 4px 12px #0003}.btn-option:active{transform:translateY(0)}.btn-option.correct{background:var(--success);border-color:var(--success)}.btn-option.wrong{background:var(--error);border-color:var(--error)}.stats{display:flex;justify-content:space-around;width:100%;padding-top:1.5rem;border-top:1px solid var(--glass-border)}.stat-item{display:flex;flex-direction:column;align-items:center}.stat-value{font-size:1.25rem;font-weight:700;color:var(--text-primary)}.stat-label{font-size:.875rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.hidden{display:none}.feedback{text-align:center;font-weight:600;min-height:1.5rem}.feedback.success{color:var(--success)}.feedback.error{color:var(--error)}@media(max-width:600px){.glass-card{padding:1.5rem;gap:1.5rem;border-radius:20px}.title{font-size:2rem;flex-wrap:wrap;line-height:1.2}.subtitle{font-size:.75rem;letter-spacing:.2em;margin-top:0}.options-grid{grid-template-columns:1fr;gap:.75rem}.btn-option{padding:1rem;font-size:1.25rem}.stat-value{font-size:1.1rem}.stat-label{font-size:.75rem}}