.studio-nav{position:sticky;top:0;z-index:50;background:var(--overlay);backdrop-filter:blur(14px) saturate(1.6);-webkit-backdrop-filter:blur(14px) saturate(1.6);border-bottom:1px solid var(--border)}.studio-nav-inner{display:flex;align-items:center;gap:12px;max-width:920px;margin:0 auto;padding:10px 16px}.studio-nav-brand{text-decoration:none;font-family:Sora,system-ui,sans-serif;font-weight:800;font-size:.82rem;letter-spacing:.18em;color:var(--foreground)}.studio-nav-sep{color:var(--border);font-size:1.1rem;font-weight:300;-webkit-user-select:none;user-select:none}.studio-nav-title{font-size:.88rem;font-weight:600;color:var(--muted-foreground)}.studio-nav-end{margin-left:auto;display:flex;align-items:center;gap:8px}.studio-nav-link{text-decoration:none;font-size:.84rem;font-weight:600;color:var(--muted-foreground);padding:6px 10px;border-radius:var(--radius);transition:background .15s var(--ease),color .15s var(--ease)}.studio-nav-link:hover{background:var(--muted);color:var(--foreground)}.shell{max-width:920px;margin:0 auto;padding:24px 16px 44px;display:grid;gap:12px}.hero{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:20px;box-shadow:var(--shadow-xs)}.hero h1{margin:0 0 6px;font-family:Sora,system-ui,sans-serif;font-size:clamp(1.5rem,3vw,2rem);letter-spacing:-.02em;line-height:1.15}.hero p{margin:2px 0;color:var(--muted-foreground);font-size:.9rem}.panel{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:20px;box-shadow:var(--shadow-xs)}.panel h2{margin:0 0 10px;font-family:Sora,system-ui,sans-serif;font-size:1rem;font-weight:700;letter-spacing:-.01em}.badge{display:inline-flex;align-items:center;gap:6px;margin-top:8px;padding:4px 10px;border-radius:999px;border:1px solid var(--border);background:var(--muted);color:var(--muted-foreground);font-size:.8rem;font-weight:600;white-space:nowrap}.badge--ready{border-color:#bbf7d0;background:#f0fdf4;color:#166534}.badge--ready:before{content:"";width:8px;height:8px;border-radius:50%;background:#22c55e;flex-shrink:0}.badge--error{border-color:#fecaca;background:#fef2f2;color:#991b1b}.stepper{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:14px 20px;box-shadow:var(--shadow-xs)}.stepper-list{display:flex;align-items:center;gap:0;margin:0;padding:0;list-style:none;counter-reset:step}.stepper-step{display:flex;align-items:center;gap:8px;flex:1;position:relative}.stepper-step:not(:last-child):after{content:"";flex:1;height:2px;background:var(--border);margin:0 12px;border-radius:1px;transition:background .3s var(--ease)}.stepper-step--done:not(:last-child):after{background:var(--primary)}.stepper-dot{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;border:2px solid var(--border);background:var(--card);font-size:.76rem;font-weight:700;color:var(--muted-foreground);flex-shrink:0;transition:border-color .3s var(--ease),background .3s var(--ease),color .3s var(--ease)}.stepper-step--active .stepper-dot{border-color:var(--primary);background:var(--primary);color:var(--primary-foreground)}.stepper-step--done .stepper-dot{border-color:var(--primary);background:var(--primary-soft);color:var(--primary)}.stepper-label{font-size:.82rem;font-weight:600;color:var(--muted-foreground);white-space:nowrap;transition:color .3s var(--ease)}.stepper-step--active .stepper-label{color:var(--foreground)}.stepper-step--done .stepper-label{color:var(--primary)}.dropzone{position:relative;display:flex;align-items:center;justify-content:center;min-height:160px;border:2px dashed var(--border);border-radius:var(--radius-lg);background:var(--muted);cursor:pointer;transition:border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease)}.dropzone:hover{border-color:var(--border-hover);background:var(--background)}.dropzone--active{border-color:var(--primary);background:var(--primary-soft);box-shadow:0 0 0 3px var(--primary-muted)}.dropzone--rejected{border-color:#ef4444;background:#fef2f2}.dropzone--hasfile{min-height:auto;padding:14px 16px;border-style:solid;border-color:var(--border);background:var(--card)}.dropzone--hasfile:hover{border-color:var(--border-hover)}.dropzone--disabled{opacity:.5;pointer-events:none;cursor:not-allowed}.dropzone-content{display:flex;flex-direction:column;align-items:center;gap:4px;padding:24px 16px;text-align:center}.dropzone--hasfile .dropzone-content{flex-direction:row;gap:10px;padding:0;text-align:left}.dropzone-icon{color:var(--muted-foreground);margin-bottom:4px;transition:color .2s var(--ease)}.dropzone--active .dropzone-icon{color:var(--primary)}.dropzone-icon--small{margin-bottom:0;flex-shrink:0}.dropzone-title{margin:0;font-size:.95rem;font-weight:700;color:var(--foreground)}.dropzone-uploadBtn{all:unset;display:inline-flex;align-items:center;justify-content:center;gap:8px;margin-top:4px;min-height:44px;padding:0 24px;border-radius:var(--radius);font-size:.92rem;font-weight:700;font-family:inherit;color:var(--primary-foreground);background:var(--primary);cursor:pointer;transition:background .15s var(--ease),transform .15s var(--ease)}.dropzone-uploadBtn:hover{background:var(--primary-hover);transform:translateY(-1px)}.dropzone-uploadBtn:focus-visible{outline:2px solid var(--ring);outline-offset:2px}.dropzone-uploadBtn svg{flex-shrink:0}.dropzone-formats{margin:2px 0 0;font-size:.78rem;color:var(--muted-foreground);letter-spacing:.02em}.dropzone-filename{margin:0;font-size:.88rem;font-weight:700;color:var(--foreground);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}.dropzone-filesize{margin:0;font-size:.82rem;color:var(--muted-foreground);flex-shrink:0}.dropzone-change{all:unset;margin-left:auto;font-size:.82rem;font-weight:600;color:var(--primary);cursor:pointer;flex-shrink:0;white-space:nowrap}.dropzone-change:hover{color:var(--primary-hover);text-decoration:underline}.dropzone-change:focus-visible{outline:2px solid var(--ring);outline-offset:2px}.presetSegmented{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:12px}.presetSegmented--disabled{opacity:.5;pointer-events:none}.presetOption{all:unset;display:flex;flex-direction:column;align-items:center;gap:2px;padding:12px 8px;border:2px solid var(--border);border-radius:var(--radius-lg);background:var(--card);color:var(--foreground);cursor:pointer;text-align:center;transition:border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease)}.presetOption:hover{border-color:var(--border-hover);background:var(--muted)}.presetOption:focus-visible{outline:2px solid var(--ring);outline-offset:2px}.presetOption--active{border-color:var(--primary);background:var(--primary-soft);box-shadow:0 0 0 1px var(--primary-muted)}.presetOption--active:hover{border-color:var(--primary);background:var(--primary-soft)}.presetOption-label{font-size:.9rem;font-weight:700;color:var(--foreground)}.presetOption--active .presetOption-label{color:var(--primary)}.presetOption-desc{font-size:.76rem;color:var(--muted-foreground)}.presetOption-eta{font-size:.78rem;font-weight:600;color:var(--primary);min-height:1.1em;font-variant-numeric:tabular-nums}.inlineWarning{margin-top:12px;padding:12px 14px;border-radius:var(--radius-lg);border:1px solid var(--accent-warm-border);background:var(--accent-warm-soft)}.inlineWarning-text{margin:0 0 10px;font-size:.86rem;color:var(--accent-warm-foreground);line-height:1.45}.inlineWarning-actions{display:flex;gap:8px;flex-wrap:wrap}.inlineWarning-confirm{all:unset;padding:6px 14px;border-radius:var(--radius);font-size:.84rem;font-weight:700;font-family:inherit;cursor:pointer;background:var(--accent-warm);color:#fff;transition:background .15s var(--ease)}.inlineWarning-confirm:hover{background:#d97706}.inlineWarning-confirm:focus-visible{outline:2px solid var(--ring);outline-offset:2px}.inlineWarning-dismiss{all:unset;padding:6px 14px;border-radius:var(--radius);font-size:.84rem;font-weight:600;font-family:inherit;cursor:pointer;color:var(--accent-warm-foreground);border:1px solid var(--accent-warm-border);transition:background .15s var(--ease)}.inlineWarning-dismiss:hover{background:var(--accent-warm-border)}.inlineWarning-dismiss:focus-visible{outline:2px solid var(--ring);outline-offset:2px}.actions button{min-height:40px;border:1px solid transparent;border-radius:var(--radius);padding:0 14px;font-size:.88rem;font-weight:700;font-family:inherit;color:var(--primary-foreground);background:var(--primary);cursor:pointer;transition:background .15s var(--ease),color .15s var(--ease)}.actions button:hover:not(:disabled){background:var(--primary-hover)}.actions button.secondary{color:var(--secondary-foreground);border-color:var(--border);background:var(--secondary)}.actions button.secondary:hover:not(:disabled){background:var(--secondary-hover)}.actions button:disabled{opacity:.5;cursor:not-allowed}.actions button:focus-visible,input:focus-visible,select:focus-visible,.download:focus-visible{outline:2px solid var(--ring);outline-offset:2px}.actions{margin-top:10px;display:flex;flex-wrap:wrap;gap:8px}.actions button{margin-top:0}.meta{margin:6px 0 0;color:var(--muted-foreground);font-size:.86rem}.status{min-height:1.4em;margin:12px 0 4px;font-weight:700;font-size:.92rem;transition:color .3s var(--ease)}.status--success{color:#16a34a}@keyframes success-pulse{0%{transform:scale(1)}50%{transform:scale(1.02)}to{transform:scale(1)}}.status--success{animation:success-pulse .4s var(--ease)}.statusMeta{min-height:1.2em;margin:0 0 10px;color:var(--muted-foreground);font-size:.84rem;line-height:1.4}.progressWrap{position:relative;width:100%;height:22px}.progressWrap progress{width:100%;height:100%;border:none;border-radius:var(--radius);overflow:hidden;background:var(--muted);display:block}.progressWrap progress::-webkit-progress-bar{background:var(--muted);border-radius:var(--radius)}.progressWrap progress::-webkit-progress-value{background:linear-gradient(90deg,var(--primary),var(--primary-hover));border-radius:var(--radius);transition:width .3s var(--ease)}.progressWrap progress::-moz-progress-bar{background:linear-gradient(90deg,var(--primary),var(--primary-hover));border-radius:var(--radius)}.progressPercent{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;font-size:.72rem;font-weight:700;color:var(--foreground);pointer-events:none;mix-blend-mode:difference;font-variant-numeric:tabular-nums}.previewList{display:grid;gap:8px}.activityDetails{margin-top:10px}.activityToggle{font-size:.82rem;font-weight:600;color:var(--muted-foreground);cursor:pointer;-webkit-user-select:none;user-select:none;list-style:none}.activityToggle::-webkit-details-marker{display:none}.activityToggle:before{content:"▸ "}.activityDetails[open]>.activityToggle:before{content:"▾ "}.activityLog{margin:8px 0 0;padding:0;list-style:none;display:grid;gap:4px;max-height:180px;overflow-y:auto}.activityEntry{padding:8px 10px;border-radius:var(--radius);border:1px solid var(--border);background:var(--card);color:var(--foreground);font-size:.82rem;line-height:1.4}.activityEntry.muted{color:var(--muted-foreground);font-style:italic}.card{padding:14px;border-radius:var(--radius-lg);border:1px solid var(--border);background:var(--card)}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}.card h3{margin:0;font-family:DM Sans,system-ui,sans-serif;font-size:.9rem;font-weight:700}.stemSolo{all:unset;padding:3px 10px;font-size:.76rem;font-weight:700;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--secondary);color:var(--secondary-foreground);cursor:pointer;transition:background .15s var(--ease),border-color .15s var(--ease),color .15s var(--ease)}.stemSolo:hover{background:var(--secondary-hover);border-color:var(--border-hover)}.stemSolo:focus-visible{outline:2px solid var(--ring);outline-offset:2px}.stemSolo--active{background:var(--primary);border-color:var(--primary);color:var(--primary-foreground)}.stemSolo--active:hover{background:var(--primary-hover);border-color:var(--primary-hover)}.waveform{width:100%;border-radius:var(--radius);overflow:hidden;background:var(--muted);cursor:pointer}.waveform-controls{display:flex;align-items:center;gap:8px;margin-top:6px;flex-wrap:wrap}.waveform-controls .download{margin-top:0;margin-left:auto}.waveform-play{all:unset;display:inline-flex;align-items:center;justify-content:center;min-height:32px;min-width:64px;padding:0 10px;font-size:.82rem;font-weight:700;font-family:inherit;border:1px solid var(--border);border-radius:var(--radius);background:var(--secondary);color:var(--secondary-foreground);cursor:pointer;transition:background .15s var(--ease)}.waveform-play:hover{background:var(--secondary-hover)}.waveform-play:focus-visible{outline:2px solid var(--ring);outline-offset:2px}.waveform-time{font-size:.82rem;color:var(--muted-foreground);font-variant-numeric:tabular-nums}.ctaCard{padding:16px;border-radius:var(--radius-lg);border:1px solid var(--primary-muted);background:var(--primary-soft)}.ctaCard--upsell{position:relative;padding:20px;border:2px solid var(--primary);background:linear-gradient(135deg,var(--primary-soft),rgba(74,75,255,.08))}.ctaCard-badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;background:var(--primary);color:var(--primary-foreground);font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;margin-bottom:10px}.ctaCard h3{margin:0;font-family:Sora,system-ui,sans-serif;font-size:1rem;font-weight:700;letter-spacing:-.01em}.ctaCard p{margin:6px 0 0;color:var(--muted-foreground);font-size:.88rem;line-height:1.5}.ctaCard-stems{margin-top:10px;display:flex;flex-wrap:wrap;gap:6px}.ctaCard-stem{padding:4px 10px;border:1px solid var(--border);border-radius:999px;font-size:.76rem;font-weight:600;color:var(--muted-foreground);background:var(--card)}.ctaCard-stem--active{border-color:var(--primary-muted);color:var(--primary);background:var(--primary-soft)}.ctaButtons{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}.ctaButton{display:inline-flex;align-items:center;justify-content:center;min-height:36px;border-radius:var(--radius);padding:0 12px;font-size:.84rem;font-weight:700;text-decoration:none;border:1px solid transparent;transition:background .15s var(--ease)}.ctaButtonPrimary{color:var(--primary-foreground);background:var(--primary)}.ctaButtonPrimary:hover{background:var(--primary-hover)}.ctaButtonSecondary{color:var(--secondary-foreground);border-color:var(--border);background:var(--secondary)}.ctaButtonSecondary:hover{background:var(--secondary-hover)}.resultActions{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:4px}.resultAction{all:unset;display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:40px;padding:0 16px;border-radius:var(--radius);font-size:.86rem;font-weight:700;font-family:inherit;cursor:pointer;transition:background .15s var(--ease),border-color .15s var(--ease)}.resultAction:focus-visible{outline:2px solid var(--ring);outline-offset:2px}.resultAction--primary{background:var(--primary);color:var(--primary-foreground)}.resultAction--primary:hover{background:var(--primary-hover)}.resultAction--primary svg{flex-shrink:0}.resultAction--secondary{border:1px solid var(--border);background:var(--secondary);color:var(--secondary-foreground)}.resultAction--secondary:hover{background:var(--secondary-hover)}.download{display:inline-flex;align-items:center;margin-top:8px;border:1px solid var(--border);border-radius:var(--radius);padding:6px 10px;color:var(--secondary-foreground);font-size:.84rem;font-weight:600;text-decoration:none;background:var(--secondary);transition:background .15s var(--ease)}.download:hover{background:var(--secondary-hover)}.infoSection{margin-top:8px;padding:20px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow-xs)}.infoSection-title{margin:0 0 14px;font-family:Sora,system-ui,sans-serif;font-size:1rem;font-weight:700;letter-spacing:-.01em}.infoGrid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.infoItem{padding:14px;border-radius:var(--radius-lg);background:var(--muted)}.infoItem h3{margin:0 0 4px;font-size:.84rem;font-weight:700;color:var(--foreground)}.infoItem p{margin:0;font-size:.8rem;line-height:1.5;color:var(--muted-foreground)}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.skeleton{background:linear-gradient(90deg,var(--muted) 25%,var(--shimmer) 37%,var(--muted) 63%);background-size:200% 100%;animation:shimmer 1.8s ease-in-out infinite;border-radius:var(--radius)}.skeleton-waveform{height:64px;border-radius:var(--radius)}.skeleton-text{height:14px;width:40%;border-radius:var(--radius-sm)}.skeleton-btn{height:32px;width:64px;border-radius:var(--radius)}@keyframes pulse-badge{0%,to{opacity:1}50%{opacity:.55}}.badge--loading{animation:pulse-badge 1.6s ease-in-out infinite;border-color:var(--primary-muted);background:var(--primary-soft);color:var(--primary)}@media(max-width:700px){.shell{padding:12px 12px 28px}.hero,.panel{padding:16px;border-radius:var(--radius-lg)}.stepper{padding:10px 14px;border-radius:var(--radius-lg)}.stepper-label{display:none}.stepper-step:not(:last-child):after{margin:0 8px}.actions button,.ctaButton{width:100%}.activityLog{max-height:120px}.waveform-play{min-height:44px;min-width:72px;font-size:.88rem}.stemSolo{min-height:36px;padding:6px 14px;font-size:.82rem}.download{min-height:44px;display:flex;align-items:center;justify-content:center}.dropzone{min-height:140px}.presetOption{padding:14px 6px}.ctaButton{min-height:44px}.infoSection{padding:16px;border-radius:var(--radius-lg)}.infoGrid{grid-template-columns:1fr;gap:8px}}@media(max-width:700px)and (max-height:500px)and (orientation:landscape){.shell{max-width:100%;padding:8px 16px 20px}.hero{padding:12px 16px}.hero h1{font-size:1.2rem}.dropzone{min-height:100px}.dropzone-icon{display:none}}