:root{--bg-primary: #0a0e14;--bg-secondary: #111820;--bg-card: #161d27;--bg-input: #1c2530;--border: #263040;--border-hover: #354458;--text-primary: #d4dce8;--text-secondary: #6b7a8d;--accent: #22b8a0;--accent-hover: #2cd4b8;--accent-glow: rgba(34, 184, 160, .25);--accent-muted: rgba(34, 184, 160, .12);--accent-blue: #3b82f6;--accent-blue-glow: rgba(59, 130, 246, .2);--success: #22c55e;--warning: #eab308;--error: #ef4444}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;-webkit-font-smoothing:antialiased}.app{max-width:1200px;margin:0 auto;padding:20px 24px}.app-header{margin-bottom:24px}.header-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--border)}.app-header h1{font-size:22px;font-weight:700;letter-spacing:-.5px;background:linear-gradient(135deg,#22b8a0,#3b82f6);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.subtitle{color:var(--text-secondary);font-size:12px;margin-top:2px}.auth-btn{background:var(--bg-input);border:1px solid var(--border);border-radius:6px;color:var(--text-primary);padding:8px 14px;font-size:13px;font-weight:500;cursor:pointer;display:flex;align-items:center;gap:8px;transition:border-color .2s,background .2s;font-family:inherit}.auth-btn:hover{border-color:var(--accent);background:var(--accent-muted)}.auth-btn-signout{font-size:12px;padding:6px 10px;color:var(--text-secondary)}.auth-user{display:flex;align-items:center;gap:10px}.auth-avatar{width:28px;height:28px;border-radius:50%;border:1px solid var(--border)}.auth-name{font-size:13px;color:var(--text-secondary)}.signin-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0a0e14d9;display:flex;align-items:center;justify-content:center;z-index:100;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.signin-modal{background:var(--bg-secondary);border:1px solid var(--border);border-radius:10px;padding:32px;max-width:400px;width:90%;text-align:center;position:relative}.signin-modal h2{font-size:20px;margin-bottom:8px}.signin-modal p{color:var(--text-secondary);font-size:14px;margin-bottom:24px}.signin-close{position:absolute;top:12px;right:14px;background:none;border:none;color:var(--text-secondary);cursor:pointer;font-size:20px;line-height:1}.signin-close:hover{color:var(--text-primary)}.signin-google-btn{display:inline-flex;align-items:center;gap:10px;background:#fff;color:#333;border:none;border-radius:6px;padding:12px 24px;font-size:14px;font-weight:600;cursor:pointer;font-family:inherit;transition:box-shadow .2s}.signin-google-btn:hover{box-shadow:0 2px 12px #ffffff26}.signin-email-form{display:flex;flex-direction:column;gap:10px;margin-bottom:4px}.signin-email-input{background:var(--bg-input);border:1px solid var(--border);border-radius:6px;color:var(--text-primary);padding:12px 14px;font-size:14px;font-family:inherit;outline:none;transition:border-color .2s;width:100%}.signin-email-input:focus{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-glow)}.signin-email-input::placeholder{color:var(--text-secondary)}.signin-email-btn{background:var(--accent);color:#fff;border:none;border-radius:6px;padding:12px 24px;font-size:14px;font-weight:600;cursor:pointer;font-family:inherit;transition:background .2s,box-shadow .2s}.signin-email-btn:hover:not(:disabled){background:var(--accent-hover);box-shadow:0 0 12px var(--accent-glow)}.signin-email-btn:disabled{opacity:.5;cursor:not-allowed}.signin-error{color:var(--error);font-size:13px;margin-top:8px}.signin-divider{display:flex;align-items:center;gap:12px;margin:20px 0;color:var(--text-secondary);font-size:13px}.signin-divider:before,.signin-divider:after{content:"";flex:1;height:1px;background:var(--border)}.signin-email-sent{display:flex;flex-direction:column;align-items:center;gap:8px;padding:16px 0;color:var(--text-primary);font-size:14px}.signin-email-sent span{color:var(--text-secondary);font-size:13px}.signin-sent-icon{font-size:32px;color:var(--accent)}.application-form-container{background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;padding:32px;max-width:560px;margin:40px auto}.application-form-container h2{font-size:20px;margin-bottom:4px}.application-subtitle{color:var(--text-secondary);font-size:14px;margin-bottom:24px}.application-form{display:flex;flex-direction:column;gap:16px}.application-form label{display:flex;flex-direction:column;gap:6px}.application-form label span{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;color:var(--text-secondary);font-family:JetBrains Mono,monospace}.application-form textarea{background:var(--bg-input);border:1px solid var(--border);border-radius:6px;color:var(--text-primary);padding:10px 12px;font-size:14px;font-family:inherit;resize:vertical;outline:none;transition:border-color .2s}.application-form textarea:focus,.application-input:focus{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-glow)}.application-input{background:var(--bg-input);border:1px solid var(--border);border-radius:6px;color:var(--text-primary);padding:10px 12px;font-size:14px;font-family:inherit;outline:none;transition:border-color .2s;width:100%}.application-status{text-align:center;padding:60px 20px}.status-icon{font-size:48px;color:var(--success);margin-bottom:16px}.application-status h2{font-size:20px;margin-bottom:8px}.application-status p{color:var(--text-secondary);font-size:14px}.controls{background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;padding:16px 20px;margin-bottom:16px}.controls-row{display:flex;gap:14px;align-items:flex-end;flex-wrap:wrap}.controls-row label{display:flex;flex-direction:column;gap:5px;flex:1;min-width:90px}.controls-row label span{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;color:var(--text-secondary);font-family:JetBrains Mono,monospace}.controls-row select,.controls-row input[type=number]{background:var(--bg-input);border:1px solid var(--border);border-radius:5px;color:var(--text-primary);padding:7px 10px;font-size:13px;font-family:inherit;outline:none;transition:border-color .2s;-moz-appearance:none;appearance:none;-webkit-appearance:none}.controls-row select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 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var(--accent-glow)}.generate-btn:active:not(:disabled){transform:scale(.99)}.generate-btn:disabled{opacity:.5;cursor:not-allowed}.prompt-box{background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;padding:14px 20px;margin-bottom:16px}.prompt-label{display:flex;align-items:center;gap:8px;margin-bottom:6px}.prompt-label span:first-child{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;color:var(--text-secondary);font-family:JetBrains Mono,monospace}.beta-badge{display:inline-block;font-size:9px;font-weight:700;text-transform:uppercase;letter-spacing:.8px;padding:2px 6px;border-radius:4px;background:linear-gradient(135deg,var(--accent),var(--accent-blue));color:#fff;line-height:1.2}.prompt-input-row{display:flex;gap:10px;align-items:flex-start}.prompt-textarea{flex:1;background:var(--bg-input);border:1px solid var(--border);border-radius:5px;color:var(--text-primary);padding:10px 12px;font-size:13px;font-family:inherit;resize:none;outline:none;transition:border-color .2s}.prompt-textarea:focus{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-glow)}.prompt-textarea::placeholder{color:var(--text-secondary)}.prompt-textarea:disabled{opacity:.5}.prompt-generate-btn{padding:10px 16px;background:var(--accent);color:#fff;border:none;border-radius:6px;font-size:12px;font-weight:600;cursor:pointer;font-family:inherit;white-space:nowrap;transition:background .2s,box-shadow .2s}.prompt-generate-btn:hover:not(:disabled){background:var(--accent-hover);box-shadow:0 0 12px var(--accent-glow)}.prompt-generate-btn:disabled{opacity:.4;cursor:not-allowed}.prompt-error{margin-top:8px;font-size:12px;color:var(--error)}.melodies-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(520px,1fr));gap:12px}.melody-card{background:var(--bg-card);border:1px solid var(--border);border-radius:6px;overflow:hidden;transition:border-color .2s,box-shadow .2s}.melody-card:hover{border-color:var(--accent);box-shadow:0 0 12px var(--accent-glow)}.melody-card.playing{border-color:var(--success);box-shadow:0 0 12px #22c55e4d}.card-header{display:flex;align-items:center;padding:8px 12px;gap:8px;border-bottom:1px solid var(--border)}.card-number{font-weight:700;font-size:13px;color:var(--accent);min-width:24px;font-family:JetBrains Mono,monospace}.card-info{font-size:11px;color:var(--text-secondary);flex:1;font-family:JetBrains Mono,monospace}.card-actions{display:flex;gap:4px}.btn-play,.btn-action{background:var(--bg-input);border:1px solid var(--border);border-radius:5px;color:var(--text-primary);width:30px;height:30px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:13px;transition:background .15s,border-color .15s}.btn-play:hover,.btn-action:hover{background:var(--border);border-color:var(--accent)}.btn-play.active,.btn-action.btn-success{background:var(--success);border-color:var(--success);color:#fff}.piano-roll-container{overflow-x:auto;overflow-y:hidden;padding:0}.piano-roll{display:block;width:100%;height:auto;image-rendering:pixelated}.card-footer{padding:5px 12px;border-top:1px solid var(--border)}.feedback-row{display:flex;align-items:center;justify-content:space-between;gap:8px}.feedback-row .ai-explanation,.feedback-row .drag-hint{flex:1;min-width:0}.feedback-row .ai-explanation{font-size:11px;color:var(--text-secondary);line-height:1.4}.feedback-buttons{display:flex;gap:4px;flex-shrink:0}.btn-feedback{background:var(--bg-input);border:1px solid var(--border);border-radius:5px;width:28px;height:28px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:12px;color:var(--text-secondary);transition:all .15s;opacity:.5}.btn-feedback:hover:not(:disabled){opacity:1;border-color:var(--accent)}.btn-feedback:disabled{cursor:default}.btn-feedback.btn-liked{background:#22c55e33;border-color:var(--success);color:var(--success);opacity:1}.btn-feedback.btn-disliked{background:#ef444433;border-color:var(--error);color:var(--error);opacity:1}.drag-hint{font-size:11px;color:var(--text-secondary);opacity:.6}.btn-feedback.btn-comment-active{background:var(--accent-muted);border-color:var(--accent);color:var(--accent);opacity:1}.comment-input{display:flex;gap:8px;margin-top:6px;align-items:flex-start}.comment-input textarea{flex:1;background:var(--bg-input);border:1px solid var(--border);border-radius:5px;color:var(--text-primary);padding:6px 8px;font-size:12px;font-family:inherit;resize:none;outline:none;transition:border-color .2s}.comment-input textarea:focus{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-glow)}.comment-input textarea::placeholder{color:var(--text-secondary)}.btn-comment-send{background:var(--accent);border:none;border-radius:5px;color:#fff;padding:6px 12px;font-size:12px;font-weight:600;cursor:pointer;font-family:inherit;transition:background .2s;white-space:nowrap}.btn-comment-send:hover:not(:disabled){background:var(--accent-hover)}.btn-comment-send:disabled{opacity:.4;cursor:not-allowed}.midi-upload{background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;padding:14px 20px;margin-bottom:16px}.upload-header{margin-bottom:8px}.upload-label{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;color:var(--text-secondary);font-family:JetBrains Mono,monospace}.upload-area{display:flex;flex-direction:column;align-items:center;gap:6px;padding:18px;border:2px dashed var(--border);border-radius:6px;cursor:pointer;transition:border-color .2s,background .2s}.upload-area:hover{border-color:var(--accent);background:var(--accent-muted)}.upload-icon{font-size:24px;color:var(--text-secondary);line-height:1}.upload-text{font-size:13px;color:var(--text-primary)}.upload-hint{font-size:11px;color:var(--text-secondary)}.progression-info{background:var(--bg-input);border:1px solid var(--border);border-radius:6px;padding:10px 12px}.progression-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.progression-filename{font-size:13px;font-weight:600;color:var(--accent);font-family:JetBrains Mono,monospace}.btn-remove{background:none;border:1px solid var(--border);border-radius:4px;color:var(--text-secondary);width:24px;height:24px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:12px;transition:color .15s,border-color .15s}.btn-remove:hover{color:var(--error);border-color:var(--error)}.progression-chords{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px}.chord-badge{background:var(--bg-card);border:1px solid var(--border);border-radius:4px;padding:2px 8px;font-size:12px;color:var(--text-primary);font-family:JetBrains Mono,monospace}.chord-badge small{color:var(--text-secondary);font-size:10px;margin-left:2px}.progression-meta{font-size:11px;color:var(--text-secondary);font-family:JetBrains Mono,monospace}.loading-overlay{background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;padding:28px 20px;margin-bottom:16px}.loading-progress{max-width:480px;margin:0 auto}.loading-bar{height:3px;background:var(--bg-input);border-radius:2px;overflow:hidden;margin-bottom:20px}.loading-bar-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-blue));border-radius:2px;transition:width .6s ease;position:relative}.loading-bar-fill:after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(90deg,transparent 0%,rgba(255,255,255,.3) 50%,transparent 100%);animation:shimmer 1.5s infinite}@keyframes shimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}.loading-stages{display:flex;flex-direction:column;gap:10px}.loading-step{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-secondary);opacity:.4;transition:all .3s}.loading-step.active{color:var(--text-primary);opacity:1}.loading-step.done{color:var(--success);opacity:.7}.step-icon{width:18px;height:18px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:10px;flex-shrink:0;border:2px solid var(--border);transition:all .3s}.loading-step.active .step-icon{border-color:var(--accent);background:var(--accent);animation:pulse-dot 1.2s ease infinite}.loading-step.done .step-icon{border-color:var(--success);background:var(--success);color:#fff;animation:none}@keyframes pulse-dot{0%,to{box-shadow:0 0 0 0 var(--accent-glow)}50%{box-shadow:0 0 0 6px transparent}}.error-message{background:#ef44441a;border:1px solid var(--error);border-radius:6px;padding:12px 16px;margin-bottom:16px;color:var(--error);font-size:13px;white-space:pre-wrap}.empty-state{text-align:center;padding:60px 20px;color:var(--text-secondary);font-size:14px}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.header-actions{display:flex;align-items:center;gap:8px}.auth-btn.admin-active{border-color:var(--accent);background:var(--accent-muted)}.admin-panel{background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;padding:20px}.admin-tabs{display:flex;gap:4px;margin-bottom:20px;border-bottom:1px solid var(--border);padding-bottom:12px}.admin-tab{background:var(--bg-input);border:1px solid var(--border);border-radius:5px;color:var(--text-secondary);padding:8px 16px;font-size:13px;font-weight:500;cursor:pointer;font-family:inherit;transition:all .2s}.admin-tab:hover{border-color:var(--accent);color:var(--text-primary)}.admin-tab.active{background:var(--accent-muted);border-color:var(--accent);color:var(--accent)}.admin-section{display:flex;flex-direction:column;gap:12px}.admin-empty{text-align:center;color:var(--text-secondary);font-size:14px;padding:40px 0}.admin-card{background:var(--bg-card);border:1px solid var(--border);border-radius:6px;overflow:hidden}.admin-card-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--border)}.admin-card-header strong{font-size:14px;margin-right:8px}.admin-email{font-size:12px;color:var(--text-secondary)}.admin-card-body{padding:12px 16px;display:flex;flex-direction:column;gap:10px}.admin-field-label{display:block;font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;color:var(--text-secondary);font-family:JetBrains Mono,monospace;margin-bottom:4px}.admin-field p{font-size:13px;color:var(--text-primary);line-height:1.5}.admin-card-actions{display:flex;gap:8px;padding:12px 16px;border-top:1px solid var(--border)}.admin-btn{padding:7px 16px;border:1px solid var(--border);border-radius:5px;font-size:12px;font-weight:600;cursor:pointer;font-family:inherit;transition:all .2s;text-transform:uppercase;letter-spacing:.5px}.admin-btn-approve{background:var(--success);border-color:var(--success);color:#fff}.admin-btn-approve:hover:not(:disabled){box-shadow:0 0 12px 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0}.admin-subheading{font-size:14px;font-weight:600;color:var(--text-primary);margin-top:16px;margin-bottom:8px}.admin-link{color:var(--accent);text-decoration:none;word-break:break-all}.admin-link:hover{text-decoration:underline}