@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;600;700&display=swap";:root{--bg-color:#0f172a;--bg-gradient:linear-gradient(135deg, #0f172a 0%, #1e293b 100%);--text-color:#f8fafc;--primary:#3b82f6;--primary-hover:#2563eb;--surface:#1e293bb3;--border:#ffffff1a;--glass-shadow:0 8px 32px 0 #0000005e;--white-key:#fff;--black-key:#1e1e1e;--key-pressed:#60a5fa}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-gradient);color:var(--text-color);flex-direction:column;min-height:100vh;font-family:Inter,sans-serif;display:flex}h1,h2,h3{font-family:Outfit,sans-serif}.glass-panel{background:var(--surface);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border);box-shadow:var(--glass-shadow);border-radius:16px}.app-container{flex-direction:column;width:100%;max-width:1400px;min-height:100vh;margin:0 auto;padding:2rem;display:flex}.header{text-align:center;margin-bottom:2rem}.header h1{background:linear-gradient(90deg,#60a5fa,#a78bfa);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:.5rem;font-size:2.5rem}.header p{color:#94a3b8}.tabs{justify-content:center;gap:1rem;margin-bottom:2rem;display:flex}.tab-button{border:1px solid var(--border);color:var(--text-color);cursor:pointer;background:#ffffff0d;border-radius:999px;align-items:center;gap:.5rem;padding:.75rem 1.5rem;transition:all .2s;display:flex}.tab-button:hover{background:#ffffff1a;transform:translateY(-2px)}.tab-button.active{background:var(--primary);border-color:var(--primary);box-shadow:0 0 15px #3b82f680}.content-area{flex-direction:column;flex:1;gap:2rem;display:flex}.piano-container{justify-content:center;padding:2rem;display:flex;position:relative;overflow-x:auto}.piano{height:250px;display:flex;position:relative}.key{cursor:pointer;-webkit-user-select:none;user-select:none;border-radius:0 0 6px 6px;position:relative}.key.white{background:var(--white-key);z-index:1;border:1px solid #ccc;border-top:none;width:50px;height:250px;box-shadow:inset 0 -2px 5px #0003}.key.white.active,.key.white:active{background:#e2e8f0;box-shadow:inset 0 -5px 10px #0000004d}.key.white.highlight{background:#bfdbfe}.key.black{background:var(--black-key);z-index:2;border:1px solid #000;border-top:none;width:32px;height:150px;position:absolute;top:0;transform:translate(-50%);box-shadow:inset 0 -2px 5px #ffffff1a}.key.black.active,.key.black:active{background:#333}.key.black.highlight{background:#3b82f6}.key-label{text-align:center;color:#64748b;pointer-events:none;width:100%;font-size:.75rem;font-weight:600;position:absolute;bottom:15px}.key.black .key-label{color:#cbd5e1;bottom:10px}.module-container{padding:2rem;animation:.3s fadeIn}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.input-group{flex-direction:column;gap:1rem;display:flex}textarea{border:1px solid var(--border);width:100%;color:var(--text-color);resize:vertical;background:#0003;border-radius:8px;min-height:150px;padding:1rem;font-family:monospace;font-size:1rem}textarea:focus{border-color:var(--primary);outline:none}.btn{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:8px;align-items:center;gap:.5rem;padding:.75rem 1.5rem;font-weight:600;transition:all .2s;display:inline-flex}.btn:hover{background:var(--primary-hover)}.osmd-container{color:#000;background:#fff;border-radius:8px;min-height:400px;padding:1rem;overflow:auto}