.faq-section{padding:1rem 0}.faq-stats{display:flex;justify-content:center;gap:3rem;margin-bottom:3rem;flex-wrap:wrap}.stat-item{text-align:center}.stat-number{font-size:2.5rem;font-weight:700;color:var(--secondary-color);margin-bottom:.5rem}.stat-label{color:#666}.faq-search{max-width:600px;margin:0 auto 3rem;position:relative}.search-input{width:100%;padding:15px 50px 15px 20px;border:2px solid #ddd;border-radius:50px;font-size:1rem;transition:border-color .3s}.search-input:focus{outline:none;border-color:var(--secondary-color)}.search-btn{position:absolute;right:5px;top:50%;transform:translateY(-50%);background:var(--secondary-color);color:white;border:none;width:40px;height:40px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center}.category-tabs{display:flex;justify-content:center;margin-bottom:2rem;flex-wrap:wrap;gap:1rem}.category-tab{background:white;border:2px solid var(--secondary-color);color:var(--secondary-color);padding:10px 20px;border-radius:30px;cursor:pointer;transition:all .3s;font-weight:600}.category-tab:hover{background:var(--secondary-color);color:white}.category-tab.active{background:var(--secondary-color);color:white}.piano-container{background:linear-gradient(to bottom,#1a1a1a,#333);border-radius:20px;padding:2rem;box-shadow:0 10px 30px rgba(0,0,0,.3);margin-bottom:4rem;position:relative;overflow:hidden}.piano-lid{background:linear-gradient(to bottom,#8B4513,#654321);height:20px;border-radius:10px 10px 0 0;position:absolute;top:0;left:0;right:0;box-shadow:0 5px 15px rgba(0,0,0,.5)}.piano-keys{display:flex;position:relative;margin-top:2rem;height:200px}.white-key{flex:1;background:var(--piano-white);border:1px solid #ccc;border-radius:0 0 8px 8px;margin:0 2px;cursor:pointer;position:relative;box-shadow:0 5px 10px var(--piano-shadow);transition:all .2s ease;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;padding-bottom:20px;overflow:hidden;z-index:1}.white-key:hover{background:#f0f0f0}.white-key.active{background:#e0e0e0;transform:translateY(3px);box-shadow:0 2px 5px var(--piano-shadow)}.black-key-wrapper{position:absolute;top:0;height:65%;z-index:2;width:8%;display:flex;justify-content:center}.black-key{width:70%;background:var(--piano-black);border-radius:0 0 5px 5px;cursor:pointer;box-shadow:0 5px 10px var(--piano-shadow);transition:all .2s ease;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;padding-bottom:15px;color:white}.black-key:hover{background:#444}.black-key.active{background:#555;transform:translateY(3px);box-shadow:0 2px 5px var(--piano-shadow)}.key-label{font-weight:600;font-size:.9rem;text-align:center;padding:0 10px;transition:all .3s ease}.white-key .key-label{color:var(--dark)}.black-key .key-label{color:white;font-size:.8rem}.key-icon{font-size:1.5rem;margin-bottom:10px;opacity:.7;transition:all .3s ease}.white-key.active .key-icon,.black-key.active .key-icon{opacity:1;transform:scale(1.2)}.faq-content{background:white;border-radius:15px;padding:2rem;margin-top:2rem;box-shadow:0 5px 20px rgba(0,0,0,.1);min-height:200px;position:relative;overflow:hidden}.faq-content::before{content:'';position:absolute;top:0;left:0;width:100%;height:5px;background:linear-gradient(90deg,var(--secondary-color),var(--accent),var(--success));animation:gradient 3s ease infinite}@keyframes gradient{0%{background-position:0 50%}50%{background-position:100% 50%}100%{background-position:0 50%}}.faq-content-header{display:flex;align-items:center;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:1px solid #eee}.faq-content-icon{width:50px;height:50px;border-radius:50%;background:var(--secondary-color);color:white;display:flex;align-items:center;justify-content:center;margin-right:1rem;font-size:1.5rem}.faq-content-title{font-size:1.5rem;color:var(--primary-color)}.faq-content-body{color:#555;line-height:1.8}.faq-content-body p{margin-bottom:1rem}.faq-content-body ul{margin-left:20px;margin-bottom:1rem}.faq-content-body li{margin-bottom:.5rem}.sound-wave{display:flex;align-items:center;justify-content:center;height:60px;margin:1rem 0}.sound-bar{width:4px;height:20px;background:var(--secondary-color);margin:0 3px;border-radius:2px;animation:soundWave 1s ease-in-out infinite}.sound-bar:nth-child(2){animation-delay:.1s}.sound-bar:nth-child(3){animation-delay:.2s}.sound-bar:nth-child(4){animation-delay:.3s}.sound-bar:nth-child(5){animation-delay:.4s}.sound-bar:nth-child(6){animation-delay:.5s}.sound-bar:nth-child(7){animation-delay:.6s}@keyframes soundWave{0%,100%{height:20px}50%{height:40px}}@media (max-width:768px){.piano-keys{height:150px}.key-label{font-size:.8rem}.black-key .key-label{font-size:.7rem}.key-icon{font-size:1.2rem}.black-key .key-icon{font-size:1rem}.faq-stats{gap:1.5rem}.stat-number{font-size:2rem}}.white-key.playing,.black-key.playing{background:#e0e0e0!important;transform:translateY(3px);box-shadow:0 2px 5px var(--piano-shadow)}.white-key:hover,.black-key:hover{transform:translateY(1px);box-shadow:0 3px 8px var(--piano-shadow);transition:all .1s ease}