:root{--bg-gradient:radial-gradient(circle at top center, #0e1122 0%, #06080e 100%);--bg-color:#06080e;--panel-bg:#0d111ea6;--panel-border:#ffffff0f;--panel-border-glow:#7c3aed26;--accent-primary:#8b5cf6;--accent-secondary:#6366f1;--accent-gradient:linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);--accent-glow:#8b5cf64d;--color-success:#10b981;--color-success-bg:#10b9811a;--color-success-border:#10b9814d;--color-success-glow:#10b98140;--color-warning:#f59e0b;--color-warning-bg:#f59e0b1a;--color-warning-border:#f59e0b4d;--color-warning-glow:#f59e0b33;--color-danger:#ef4444;--color-danger-bg:#ef44441a;--color-danger-border:#ef44444d;--color-info:#0ea5e9;--color-info-bg:#0ea5e91a;--color-info-border:#0ea5e94d;--text-primary:#f8fafc;--text-secondary:#94a3b8;--text-muted:#64748b;--font-sans:"Inter", system-ui, -apple-system, sans-serif;--font-mono:"JetBrains Mono", ui-monospace, monospace}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background:var(--bg-color);background-image:var(--bg-gradient);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;overflow-x:hidden}.panel-glass{background:var(--panel-bg);-webkit-backdrop-filter:blur(16px);border:1px solid var(--panel-border);border-radius:16px;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 8px 32px #0000004d}.panel-glass:hover{border-color:#ffffff1a;box-shadow:0 12px 40px #0006}.panel-glow-purple{box-shadow:0 0 20px var(--panel-border-glow)}.panel-glow-green{box-shadow:0 0 20px var(--color-success-glow);border-color:var(--color-success-border)}.panel-glow-amber{box-shadow:0 0 20px var(--color-warning-glow);border-color:var(--color-warning-border)}.font-mono-data{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.02em}.app-container{flex-direction:column;gap:24px;max-width:1200px;min-height:100vh;margin:0 auto;padding:24px;display:flex}.app-header{border-bottom:1px solid #ffffff0d;justify-content:space-between;align-items:center;padding:16px 24px;display:flex}.app-title-container{align-items:center;gap:12px;display:flex}.logo-glow{filter:drop-shadow(0 0 8px var(--accent-primary));font-size:24px}.app-title{letter-spacing:-.03em;background:linear-gradient(to right, #fff, var(--text-secondary));-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:22px;font-weight:700}.app-grid{grid-template-columns:7fr 5fr;align-items:start;gap:24px;display:grid}@media (width<=1024px){.app-grid{grid-template-columns:1fr}}.btn-primary{background:var(--accent-gradient);color:#fff;cursor:pointer;box-shadow:0 4px 12px var(--accent-glow);border:none;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-weight:500;transition:all .2s;display:inline-flex}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 16px #8b5cf680}.btn-primary:active{transform:translateY(1px)}.btn-primary:disabled{opacity:.5;cursor:not-allowed;box-shadow:none;transform:none}.btn-secondary{color:var(--text-primary);cursor:pointer;background:#ffffff0f;border:1px solid #ffffff1a;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-weight:500;transition:all .2s;display:inline-flex}.btn-secondary:hover:not(:disabled){background:#ffffff1f;border-color:#fff3}.btn-secondary:disabled{opacity:.4;cursor:not-allowed}.btn-danger{background:var(--color-danger-bg);border:1px solid var(--color-danger-border);color:#fca5a5;cursor:pointer;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-weight:500;transition:all .2s;display:inline-flex}.btn-danger:hover:not(:disabled){background:#ef444433;border-color:#ef4444}.form-select{color:var(--text-primary);cursor:pointer;appearance:none;background:#0f172acc url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='rgba(255, 255, 255, 0.5)'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E") right 14px center/16px no-repeat;border:1px solid #ffffff1a;border-radius:8px;outline:none;width:100%;padding:10px 40px 10px 14px;font-size:14px;transition:all .2s}.form-select:focus{border-color:var(--accent-primary);box-shadow:0 0 0 2px #8b5cf633}@keyframes pulseGlow{0%{opacity:.4}50%{opacity:.8}to{opacity:.4}}.glow-animation{animation:2s ease-in-out infinite pulseGlow}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#0003}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#fff3}.tour-backdrop{-webkit-backdrop-filter:blur(4px);z-index:1000;pointer-events:auto;background:#04060cb3;width:100%;height:100%;transition:opacity .3s;position:fixed;top:0;left:0}.tour-parent-elevated{z-index:1001!important;pointer-events:none!important;position:relative!important}.tour-highlighted{z-index:1002!important;box-shadow:0 0 0 3px var(--accent-primary), 0 0 20px var(--accent-glow)!important;transition:all .3s!important;position:relative!important}.tour-popover{-webkit-backdrop-filter:blur(20px);z-index:1002;width:320px;color:var(--text-primary);background:#0a0e17f5;border:1px solid #ffffff1a;border-radius:12px;flex-direction:column;gap:12px;padding:18px;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex;box-shadow:0 10px 40px #00000080,0 0 0 1px #ffffff0d}.tour-popover h5{color:var(--text-primary);margin-bottom:2px;font-size:14px;font-weight:700}.tour-popover-content{color:var(--text-secondary);font-size:12.5px;line-height:1.5}.tour-popover-header{justify-content:space-between;align-items:center;display:flex}.tour-popover-step{font-size:10px;font-family:var(--font-mono);color:var(--accent-primary);background:#8b5cf626;border-radius:4px;padding:2px 6px;font-weight:600}.tour-popover-buttons{justify-content:space-between;gap:8px;margin-top:4px;display:flex}.tour-popover-buttons button{cursor:pointer;border-radius:6px;padding:6px 12px;font-size:11px;font-weight:500;transition:all .2s}.btn-tour-nav{color:var(--text-secondary);background:#ffffff0f;border:1px solid #ffffff1a}.btn-tour-nav:hover:not(:disabled){color:var(--text-primary);background:#ffffff1f}.btn-tour-nav:disabled{opacity:.3;cursor:not-allowed}.btn-tour-next{background:var(--accent-gradient);color:#fff;box-shadow:0 2px 8px var(--accent-glow);border:none}.btn-tour-next:hover{transform:translateY(-.5px);box-shadow:0 4px 12px #8b5cf666}.btn-tour-skip{color:var(--text-muted);background:0 0;border:1px solid #0000}.btn-tour-skip:hover{color:#fca5a5;background:#ef44440f;border-color:#ef44441a}.desktop-left-col,.desktop-right-col{flex-direction:column;gap:24px;display:flex}@media (width<=768px){.app-container{gap:16px;padding:12px}.app-header{text-align:center;flex-direction:column;align-items:stretch;gap:12px;padding:12px 16px}.app-title-container{justify-content:center}.app-title{font-size:18px}.desktop-left-col,.desktop-right-col{display:contents}.app-grid{flex-direction:column;align-items:stretch;gap:16px;display:flex}#tuner-panel{order:1}#calibration-steps-timeline{order:2}#waveform-card{order:3}#midi-config-panel{order:4}#history-log-panel{order:5}#calibration-guide-panel{order:6}#help-tour-btn,#tuner-settings-card{display:none!important}#calibration-steps-timeline,#waveform-card{border-left:none;border-right:none;border-radius:0;align-self:stretch;margin-left:-12px;margin-right:-12px}}.tuner-header{justify-content:space-between;align-items:center;gap:16px;display:flex}.tuner-target-note{margin-top:2px;font-size:32px;font-weight:800}.tuner-digits{font-size:64px}.step-circle{border-radius:50%;justify-content:center;align-items:center;width:48px;height:48px;font-size:16px;font-weight:700;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex}.step-hz-label{margin-top:10px;font-size:11px}.step-cents-label{margin-top:4px;font-size:10px}.step-connecting-line{z-index:0;background:#ffffff0f;height:2px;position:absolute;top:24px;left:30px;right:30px}@media (width<=768px){.tuner-header{text-align:center;flex-direction:column;align-items:stretch;gap:12px}.tuner-target-note{font-size:24px}.tuner-digits{font-size:44px}.step-circle{width:38px;height:38px;font-size:13px}.step-hz-label{margin-top:6px;font-size:9px}.step-cents-label{margin-top:2px;font-size:9px}.step-connecting-line{top:19px;left:20px;right:20px}}