:root{--bg-color: #0a0a0a;--surface-color: #141414;--surface-highlight: #252525;--text-primary: #ffffff;--text-secondary: #b0b0b0;--accent-primary: #ff6b00;--accent-secondary: #ffa500;--accent-success: #7ed321;--accent-warning: #ffcc00;--font-main: "Inter", system-ui, Avenir, Helvetica, Arial, sans-serif;--spacing-unit: 8px;--glow-primary: 0 0 15px rgba(255, 107, 0, .6);--glow-secondary: 0 0 15px rgba(255, 165, 0, .5)}html{overflow-y:scroll}*{box-sizing:border-box;margin:0;padding:0}body{margin:0;font-family:var(--font-main);background-color:var(--bg-color);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;display:flex;justify-content:center;align-items:center}button{cursor:pointer;border:none;background:none;font-family:inherit;color:inherit}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-color)}::-webkit-scrollbar-thumb{background:var(--surface-highlight);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--accent-primary)}@media (max-width: 767px){html{overflow-y:auto}body{display:block;min-height:100vh;height:100vh;overflow:hidden}}.navbar{display:flex;justify-content:space-between;align-items:center;padding:20px 40px;background:#0000004d;border-bottom:1px solid var(--surface-highlight);margin-bottom:40px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);max-width:100%;width:98%;margin-left:auto;margin-right:auto}.nav-brand{font-size:1.5rem;font-weight:800;letter-spacing:-1px;color:#fff;margin-right:10px}.nav-brand .accent{color:var(--accent-primary)}.nav-links{display:flex;gap:30px}.nav-link{text-decoration:none;color:var(--text-secondary);font-weight:600;font-size:.9rem;text-transform:uppercase;letter-spacing:1px;transition:all .2s;position:relative}.nav-link:hover{color:#fff}.nav-link.active{color:var(--accent-primary)}.nav-link.active:after{content:"";position:absolute;bottom:-5px;left:0;width:100%;height:2px;background:var(--accent-primary);box-shadow:var(--glow-primary)}.nav-auth{display:flex;align-items:center}.nav-loading{color:var(--text-secondary);font-size:.9rem}.nav-user{display:flex;align-items:center;gap:10px;text-decoration:none;padding:6px 12px;border-radius:8px;transition:all .2s;border:1px solid transparent}.nav-user:hover{background:#ffffff0d;border-color:var(--surface-highlight)}.nav-user.active{border-color:var(--accent-primary);background:#ff6b0014}.user-avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem;color:var(--bg-color)}.user-email{color:var(--text-secondary);font-size:.85rem;max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.nav-user:hover .user-email,.nav-user.active .user-email{color:var(--text-primary)}.nav-login-btn{padding:8px 20px;background:transparent;border:1px solid var(--accent-primary);color:var(--accent-primary);border-radius:6px;font-size:.85rem;font-weight:600;text-decoration:none;text-transform:uppercase;letter-spacing:1px;transition:all .2s}.nav-login-btn:hover{background:var(--accent-primary);color:var(--bg-color);box-shadow:0 0 15px #ff6b0066}.footer{width:100%;background:#0006;border-top:1px solid var(--surface-highlight);padding:30px 20px;margin-top:auto}.footer-content{max-width:1200px;margin:0 auto;display:flex;flex-direction:column;align-items:center;gap:20px}.footer-brand{display:flex;flex-direction:column;align-items:center;gap:5px}.footer-logo{font-size:1.5rem;font-weight:800;letter-spacing:-1px;color:#fff}.footer-logo .accent{color:var(--accent-primary)}.footer-tagline{font-size:.85rem;color:var(--text-secondary)}.footer-links{display:flex;gap:30px;flex-wrap:wrap;justify-content:center}.footer-links a{color:var(--text-secondary);text-decoration:none;font-size:.9rem;transition:color .2s}.footer-links a:hover{color:var(--accent-primary)}.footer-copyright{font-size:.8rem;color:var(--text-secondary);opacity:.7}@media (min-width: 768px){.footer-content{flex-direction:row;justify-content:space-between}.footer-brand{align-items:flex-start}.footer-links{order:0}}.knob-container{display:flex;flex-direction:row;align-items:center;gap:8px;margin:2px}.knob-outer{border-radius:50%;background:linear-gradient(145deg,#1a1a1a,#2a2a2a);box-shadow:5px 5px 10px #0b0b0b,-5px -5px 10px #353535;position:relative;cursor:pointer;display:flex;justify-content:center;align-items:center;border:1px solid #333;touch-action:none;-webkit-user-select:none;user-select:none}.knob-outer:hover{box-shadow:0 0 10px #ff6b004d;border-color:var(--accent-primary)}.knob-outer.dragging{cursor:grabbing!important;border-color:var(--accent-primary)}.knob-inner{width:60%;height:60%;border-radius:50%;background:#222;position:relative;pointer-events:none;box-shadow:inset 2px 2px 5px #000}.knob-marker{width:4px;height:50%;background:var(--accent-primary);position:absolute;top:10%;left:50%;transform:translate(-50%);border-radius:2px}.knob-ring{position:absolute;top:0;left:0;pointer-events:none;transform:rotate(135deg)}.knob-info{display:flex;flex-direction:column;align-items:flex-end;gap:0;line-height:normal;min-width:35px}.knob-label{font-size:.6rem;color:var(--text-secondary);text-transform:uppercase;font-weight:700;letter-spacing:.5px;margin:0}.knob-value{font-size:.7rem;color:var(--accent-primary);font-family:monospace;margin:0}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000d9;display:flex;align-items:center;justify-content:center;z-index:2000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal{background:var(--surface-color);border-radius:16px;width:90%;max-width:500px;box-shadow:0 20px 60px #000000b3;border:1px solid var(--surface-highlight);animation:slideUp .3s ease}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;border-bottom:1px solid var(--surface-highlight)}.modal-header h2{font-size:1.4rem;font-weight:700;color:var(--text-primary);margin:0}.modal-close-btn{background:transparent;border:none;color:var(--text-secondary);font-size:2rem;width:36px;height:36px;display:flex;align-items:center;justify-content:center;cursor:pointer;border-radius:50%;transition:all .2s;line-height:1}.modal-close-btn:hover{background:var(--surface-highlight);color:var(--accent-primary)}.modal-body{padding:24px;color:var(--text-primary);line-height:1.6}.modal-body p{margin:0 0 12px;color:var(--text-secondary)}.modal-body p:last-child{margin-bottom:0}.modal-body strong{color:var(--text-primary);font-weight:700}.modal-input{width:100%;background:var(--bg-color);border:2px solid var(--surface-highlight);border-radius:8px;padding:14px 16px;color:var(--text-primary);font-size:1rem;font-family:inherit;outline:none;transition:all .2s;box-sizing:border-box;margin-top:16px}.modal-input:focus{border-color:var(--accent-primary);box-shadow:0 0 0 3px #ff6b001a}.modal-input::placeholder{color:var(--text-secondary);opacity:.5}.modal-footer{display:flex;gap:12px;padding:20px 24px;border-top:1px solid var(--surface-highlight)}.modal-btn{flex:1;padding:12px 24px;border-radius:8px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .2s;border:none;text-transform:uppercase;letter-spacing:.5px}.cancel-btn{background:var(--surface-highlight);color:var(--text-secondary);border:1px solid var(--surface-highlight)}.cancel-btn:hover{background:var(--bg-color);color:var(--text-primary)}.confirm-btn{background:var(--accent-primary);color:#000;border:1px solid var(--accent-primary);box-shadow:0 4px 12px #ff6b004d}.confirm-btn:hover{background:#ff7a1a;box-shadow:0 6px 16px #ff6b0066;transform:translateY(-1px)}.confirm-btn.danger{background:#f44;border-color:#f44;box-shadow:0 4px 12px #ff44444d}.confirm-btn.danger:hover{background:#f55;box-shadow:0 6px 16px #f446}.confirm-btn:disabled{background:var(--surface-highlight);color:var(--text-secondary);cursor:not-allowed;box-shadow:none;border-color:var(--surface-highlight)}.confirm-btn:disabled:hover{transform:none}.modal-warning{background:#ff9d001a;border:1px solid rgba(255,157,0,.3);border-radius:8px;padding:16px;margin-bottom:16px}.modal-error{background:#ff44441a;border:1px solid rgba(255,68,68,.3);border-radius:8px;padding:16px;margin-bottom:16px}.modal-warning p,.modal-error p{margin:0;color:var(--text-primary)}@media (max-width: 767px){.modal{width:95%;max-width:none;margin:10px}.modal-header{padding:16px 20px}.modal-header h2{font-size:1.2rem}.modal-body{padding:20px}.modal-footer{flex-direction:column;padding:16px 20px}.modal-btn{width:100%}}.existing-presets-list{margin-top:16px}.existing-presets-list h4{font-size:.85rem;color:var(--text-secondary);margin:0 0 8px;text-transform:uppercase;letter-spacing:1px}.existing-presets-list ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px}.existing-presets-list li{background:var(--bg-color);padding:10px 14px;border-radius:6px;color:var(--accent-primary);font-weight:600;cursor:pointer;transition:all .2s;border:1px solid transparent}.existing-presets-list li:hover{background:#ff6b0026;border-color:var(--accent-primary);transform:translate(4px)}.app-layout{display:flex;gap:20px;align-items:flex-start;justify-content:center;width:98%;max-width:100%;margin:0 auto}.drum-machine-container{flex:3;background:var(--surface-color);padding:40px;border-radius:16px;box-shadow:0 20px 50px #00000080;margin-top:0;border:1px solid var(--surface-highlight)}.header{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px;padding-bottom:20px;border-bottom:1px solid var(--surface-highlight)}.header h1{font-weight:800;letter-spacing:-1px;font-size:3rem;margin:0;color:#fff}.accent{padding-right:10px;color:var(--accent-primary)}.beta-badge{background:linear-gradient(135deg,var(--accent-primary),#ff9d00);color:#000;font-size:.65rem;font-weight:800;letter-spacing:1.5px;padding:4px 10px;border-radius:6px;box-shadow:0 2px 8px #ff6b0066;animation:subtle-pulse 3s ease-in-out infinite}@keyframes subtle-pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.85;transform:scale(.98)}}.controls{display:flex;align-items:center;gap:20px}.play-btn{background:var(--surface-highlight);width:50px;height:50px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.6rem;color:var(--accent-primary);transition:all .2s ease;box-shadow:0 4px 10px #0000004d}.play-btn:hover{transform:scale(1.05);background:var(--accent-primary);color:#000;box-shadow:var(--glow-primary)}.play-btn.active{color:var(--accent-secondary);box-shadow:var(--glow-secondary)}.play-btn.active:hover{background:var(--accent-secondary);color:#fff}.bpm-control{display:flex;align-items:center;gap:10px;background:var(--bg-color);padding:8px 16px;border-radius:20px;border:1px solid var(--surface-highlight)}.bpm-display{font-family:monospace;font-size:1.3rem;color:var(--accent-primary);width:60px;text-align:right}input[type=range]{accent-color:var(--accent-primary)}.fullscreen-btn{background:var(--surface-highlight);width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.1rem;color:var(--text-secondary);transition:all .2s ease;border:1px solid var(--surface-highlight);cursor:pointer}.fullscreen-btn:hover{color:var(--accent-primary);border-color:var(--accent-primary);box-shadow:0 0 10px #ff6b0040}.fullscreen-btn.active{color:var(--accent-primary);background:#ff6b0026}.metronome-btn{background:var(--surface-highlight);width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:var(--text-secondary);transition:all .2s ease;border:1px solid var(--surface-highlight);cursor:pointer}.metronome-btn:hover{color:var(--accent-primary);border-color:var(--accent-primary);box-shadow:0 0 10px #ff6b0040}.metronome-btn.active{color:var(--accent-primary);background:#ff6b0026;border-color:var(--accent-primary)}.clear-btn{background:var(--surface-highlight);width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.1rem;color:var(--text-secondary);transition:all .2s ease;border:1px solid var(--surface-highlight);cursor:pointer}.clear-btn:hover{color:#f44;border-color:#f44;box-shadow:0 0 10px #ff444440}.key-control{display:flex;align-items:center;gap:10px;background:var(--bg-color);padding:6px 14px;border-radius:20px;border:1px solid var(--surface-highlight);height:40px;box-sizing:border-box}.key-icon{font-size:.9rem;color:var(--text-secondary)}.key-selector{background:transparent;border:none;color:var(--accent-primary);font-family:monospace;font-size:1.1rem;cursor:pointer;font-weight:700;outline:none}.key-selector option{background:var(--surface-color);color:var(--text-primary)}.drum-machine-container:fullscreen{padding:60px;background:var(--bg-color);display:flex;flex-direction:column;overflow-y:auto;border:none;border-radius:0}.add-track-btn{margin-top:30px;background:transparent;color:var(--text-secondary);border:2px dashed var(--surface-highlight);padding:15px;border-radius:12px;display:flex;align-items:center;justify-content:center;gap:12px;cursor:pointer;font-weight:600;transition:all .2s;width:100%}.add-track-btn:hover{border-color:var(--accent-primary);color:var(--text-primary);background:#ff6b0014}.sequencer-grid{display:flex;flex-direction:column;gap:4px;flex:3}.presets-panel{flex:1;background:#0003;border-radius:12px;padding:20px;border:1px solid var(--surface-highlight);display:flex;flex-direction:column;height:560px;min-width:200px}.presets-panel h3{font-size:.9rem;color:var(--accent-primary);letter-spacing:2px;margin:0;font-weight:700}.panel-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;border-bottom:1px solid var(--surface-highlight);padding-bottom:10px}.preset-actions{display:flex;align-items:center;gap:10px}.preset-count{background:#ffffff0d;padding:6px 12px;border-radius:12px;font-size:.9rem;font-weight:600;color:#fff9;border:1px solid rgba(255,255,255,.1)}.preset-count span{color:#ff6b00}.preset-count .at-limit{color:#ff9d00;animation:pulse-glow 2s ease-in-out infinite}@keyframes pulse-glow{0%,to{opacity:1}50%{opacity:.6}}.save-btn{font-size:.7rem;padding:6px 12px;background:var(--surface-highlight);border:1px solid var(--accent-primary);color:var(--accent-primary);border-radius:4px;transition:all .2s;text-transform:uppercase}.save-btn:hover{background:var(--accent-primary);color:#000;box-shadow:0 0 10px #ff6b0066}.import-export-controls{display:flex;gap:8px;margin-top:10px}.import-btn,.export-btn{flex:1;font-size:.7rem;padding:6px 10px;background:var(--surface-highlight);border:1px solid var(--accent-primary);color:var(--accent-primary);border-radius:4px;transition:all .2s;text-transform:uppercase;display:flex;align-items:center;justify-content:center;gap:6px;cursor:pointer}.import-btn:hover,.export-btn:hover{background:var(--accent-primary);color:#000;border-color:var(--accent-primary);box-shadow:0 0 10px #ff6b0066}.import-btn svg,.export-btn svg{font-size:.9rem}.preset-list{display:flex;flex-direction:column;gap:20px;overflow-y:auto;padding-right:5px}.preset-group h4{font-size:.7rem;color:var(--text-secondary);margin:10px 0;letter-spacing:1px}.preset-btn{width:100%;margin-bottom:8px;text-align:left;padding:16px;border-radius:6px;background:var(--surface-highlight);color:var(--text-primary);font-size:1.1rem;transition:all .2s;border-left:3px solid transparent}.preset-btn:hover{background:var(--surface-color);border-left-color:var(--accent-primary)}.preset-btn.active{background:#ff6b0026;border-left-color:var(--accent-primary);color:var(--accent-primary)}.preset-btn.custom{border-left-color:var(--accent-primary)}.preset-btn.custom.active{background:#ff6b0033;color:var(--accent-primary);border-left-color:var(--accent-primary);box-shadow:inset 0 0 10px #ff6b0026}.delete-preset-btn{background:transparent;border:1px solid rgba(255,0,0,.3);color:#ff000080;width:32px;height:48px;border-radius:4px;display:flex;align-items:center;justify-content:center;font-size:1.2rem;cursor:pointer;transition:all .2s;margin-bottom:8px}.delete-preset-btn:hover{background:#ff00001a;border-color:#f44;color:#f44;box-shadow:0 0 10px #f003}.track{display:flex;align-items:center;gap:12px;margin-bottom:2px;padding:1px 0}.track-controls{display:flex;align-items:center;gap:8px;width:130px;flex-shrink:0;justify-content:flex-start}.mute-checkbox{accent-color:var(--accent-primary);width:24px;height:24px;cursor:pointer}.track-label{width:90px;font-size:.85rem;font-weight:700;letter-spacing:1px;color:var(--text-secondary);text-align:right;transition:all .2s}.track-label.muted{opacity:.4;color:var(--text-secondary)}.audio-track{margin-bottom:4px}.audio-track-ui{flex:1;display:flex;align-items:center;gap:10px;background:#ffffff08;padding:4px 10px;border-radius:8px;border:1px solid var(--surface-highlight);height:44px;box-sizing:border-box}.audio-label{color:var(--accent-primary);font-size:.9rem;letter-spacing:1px}.audio-visualizer-container{flex:1;height:44px;background:#0003;border-radius:8px;overflow:hidden;position:relative;border:1px solid var(--surface-highlight)}.waveform-canvas{width:100%;height:100%;display:block}.record-btn{background:var(--bg-color);border:1px solid var(--surface-highlight);color:var(--text-secondary);padding:10px 20px;border-radius:8px;display:flex;align-items:center;gap:12px;cursor:pointer;font-weight:700;font-size:.85rem;transition:all .3s cubic-bezier(.4,0,.2,1)}.record-btn svg{font-size:1.1rem}.record-btn.armed{border-color:#fa0;color:#fa0;box-shadow:0 0 15px #fa03;animation:pulse-orange 1.5s infinite}.record-btn.recording{background:#f44;border-color:#f44;color:#fff;box-shadow:0 0 20px #f446;animation:pulse-red 1s infinite}.remove-track-btn{background:transparent;border:none;color:var(--text-secondary);cursor:pointer;font-size:1rem;margin-left:10px;opacity:.5;transition:opacity .2s}.remove-track-btn:hover{opacity:1;color:#f44}.audio-status{margin-left:auto;display:flex;align-items:center}.audio-volume-knob{display:flex;align-items:center;justify-content:center}.track-mixer{width:65px;flex-shrink:0;display:flex;justify-content:center;align-items:center;border-left:1px solid var(--surface-highlight);padding-left:5px}.audio-volume-knob .knob-label{font-size:.6rem;margin-bottom:2px}.audio-volume-knob .knob-value{font-size:.7rem;color:var(--accent-primary)}.status-badge{padding:6px 12px;border-radius:20px;font-size:.75rem;font-weight:800;letter-spacing:1px}.status-badge.looping{background:#00ff9d1a;color:var(--accent-success);display:flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:50%}.status-badge.looping .pulse{font-size:.5rem;animation:pulse-green 1s infinite}@keyframes pulse-orange{0%{opacity:1;border-color:#fa0}50%{opacity:.6;border-color:#ffaa004d}to{opacity:1;border-color:#fa0}}@keyframes pulse-red{0%{transform:scale(1);box-shadow:0 0 20px #f446}50%{transform:scale(1.02);box-shadow:0 0 35px #ff4444b3}to{transform:scale(1);box-shadow:0 0 20px #f446}}@keyframes pulse-green{0%{transform:scale(1);opacity:1}50%{transform:scale(1.5);opacity:.5}to{transform:scale(1);opacity:1}}.track-label.interactable{cursor:pointer;background:transparent;border:1px solid transparent;border-radius:4px;padding:4px 8px}.track-label.interactable:hover{color:var(--accent-primary);border-color:var(--accent-primary);background:#ff6b0026}.steps{display:flex;gap:6px;flex:1}.step{flex:1;aspect-ratio:1;background:var(--bg-color);border-radius:4px;border:1px solid var(--surface-highlight);position:relative;transition:all .1s}.step:hover{border-color:var(--accent-primary)}.step:nth-child(4n+1){background:#151515}.step.active{background:#ff6b0040;border-color:var(--accent-primary)}.bass-step{-moz-appearance:none;appearance:none;-webkit-appearance:none;text-align:center;text-align-last:center;font-family:monospace;font-weight:700;font-size:.75rem;color:var(--text-secondary);cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);outline:none}.bass-step:hover{border-color:var(--accent-primary);background:#ff6b0014}.bass-step.active{color:var(--accent-primary);background:#ff6b0040;border-color:var(--accent-primary);box-shadow:inset 0 0 10px #ff6b0026;text-shadow:0 0 8px rgba(255,107,0,.6)}.bass-step.playing{background-color:#ffffff26;border-color:#fff}.bass-step.active.playing{background:#ff6b0080;filter:brightness(1.2);box-shadow:0 0 15px #ff6b0066}.bass-step option{background:var(--surface-color);color:var(--text-primary);font-size:1rem;padding:10px}.step.active .step-led{background:var(--accent-primary);box-shadow:var(--glow-primary)}.track:nth-child(2) .step.active{background:#ffa50033;border-color:var(--accent-secondary)}.track:nth-child(2) .step.active .step-led{background:var(--accent-secondary);box-shadow:var(--glow-secondary)}.step-led{width:8px;height:8px;background:#333;border-radius:50%;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);transition:all .2s}.step.playing{background-color:#ffffff1a}.step.active.playing{filter:brightness(1.5)}.mobile-menu-btn{background:var(--surface-highlight);width:40px;height:40px;border-radius:50%;display:none;align-items:center;justify-content:center;font-size:1.2rem;color:var(--text-secondary);transition:all .2s ease;border:1px solid var(--surface-highlight);cursor:pointer}.mobile-menu-btn:hover{color:var(--accent-primary);border-color:var(--accent-primary);box-shadow:0 0 10px #ff6b0040}.mobile-menu-btn.active{color:var(--accent-primary);background:#ff6b0026;border-color:var(--accent-primary)}.presets-panel-wrapper{flex:1;position:relative}.mobile-overlay{display:none}.mobile-close-btn{display:none;position:absolute;top:10px;right:10px;background:var(--surface-highlight);border:1px solid var(--surface-highlight);color:var(--text-secondary);width:36px;height:36px;border-radius:50%;align-items:center;justify-content:center;font-size:1.2rem;cursor:pointer;z-index:1001;transition:all .2s}.mobile-close-btn:hover{color:var(--accent-primary);border-color:var(--accent-primary)}@media (min-width: 768px){.app-layout{display:flex;gap:20px}.presets-panel-wrapper{display:block}}@media (max-width: 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