:root{color-scheme:dark;font-family:Aptos,Segoe UI Variable,Segoe UI,sans-serif;background:#090d0e;color:#f5f8f2;font-synthesis:none;text-rendering:optimizeLegibility;--bg: #090d0e;--panel: #111719;--panel-strong: #151d20;--line: rgba(218, 230, 220, .14);--muted: #9aa59f;--text: #f5f8f2;--lime: #9cf032;--lime-strong: #7edc18;--amber: #f5c64a;--danger: #ff7d73;--shadow: 0 24px 70px rgba(0, 0, 0, .28)}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100dvh;background:linear-gradient(115deg,rgba(156,240,50,.05),transparent 34%),radial-gradient(circle at 76% 12%,rgba(245,198,74,.08),transparent 26%),var(--bg)}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--lime);outline-offset:3px}.app-shell{width:100%;min-height:100dvh;padding:14px}.console{position:relative;width:min(1560px,100%);margin:0 auto;padding:16px;border:1px solid var(--line);border-radius:8px;background:linear-gradient(180deg,rgba(255,255,255,.035),transparent 42%),#090d0ee6;box-shadow:var(--shadow);overflow:hidden}.console:before{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:52px 52px;-webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 72%);mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 72%)}.topbar,.panel,.output-bar,.preview-panel,.error-banner{position:relative;z-index:1}.topbar{display:grid;grid-template-columns:minmax(280px,1.4fr) auto minmax(260px,1fr) auto;gap:14px;align-items:center;padding:18px 20px;border:1px solid var(--line);border-radius:8px;background:#101618db}.brand-block{display:flex;align-items:center;gap:16px}.brand-mark{display:grid;grid-template-columns:repeat(5,4px);align-items:center;gap:4px;width:42px;height:42px;color:var(--lime)}.brand-mark span{display:block;width:4px;height:16px;border-radius:99px;background:currentColor;animation:pulse-meter 1.1s ease-in-out infinite}.brand-mark span:nth-child(2){height:26px;animation-delay:80ms}.brand-mark span:nth-child(3){height:34px;animation-delay:.16s}.brand-mark span:nth-child(4){height:22px;animation-delay:.24s}.brand-mark span:nth-child(5){height:12px;animation-delay:.32s}@keyframes pulse-meter{0%,to{transform:scaleY(.72);opacity:.72}50%{transform:scaleY(1);opacity:1}}.eyebrow{margin:0 0 4px;color:var(--muted);font-size:.72rem;font-weight:800;letter-spacing:0;text-transform:uppercase}h1,h2,p{margin-top:0}h1{margin-bottom:0;font-size:clamp(1.7rem,2.6vw,2.65rem);line-height:1;letter-spacing:0}h1:first-letter,.accent,.target-chip strong{color:var(--lime)}h2{margin-bottom:0;font-size:clamp(1rem,1.2vw,1.25rem);line-height:1.1;letter-spacing:0}.target-chip{display:grid;grid-template-columns:auto auto auto;align-items:baseline;gap:10px;min-height:50px;padding:10px 16px;border:1px solid var(--line);border-radius:8px;background:#0d1214}.target-chip span,.target-chip b,.process-status span{color:var(--muted);font-size:.76rem;font-weight:800;letter-spacing:0;text-transform:uppercase}.target-chip strong{font-size:1.85rem;line-height:1}.privacy-note{display:flex;align-items:center;gap:12px;color:var(--muted)}.privacy-note strong,.privacy-note span{display:block}.privacy-note strong{margin-bottom:4px;color:var(--text)}.shield{width:30px;height:34px;border:2px solid var(--line);border-radius:14px 14px 18px 18px;box-shadow:inset 0 -12px #9cf0321f}.process-status{display:grid;gap:4px;padding-left:20px;border-left:1px solid var(--line)}.process-status strong{color:var(--lime)}.workspace-grid{display:grid;grid-template-columns:minmax(330px,.95fr) minmax(440px,1.2fr);gap:12px;margin-top:12px}.panel{border:1px solid var(--line);border-radius:8px;background:linear-gradient(135deg,rgba(255,255,255,.035),transparent 54%),#111719d6}.upload-panel,.conversion-panel{min-height:410px;padding:24px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:12px;margin-bottom:18px}.count-chip,.active-file{max-width:240px;overflow:hidden;color:var(--lime);font-size:.82rem;text-overflow:ellipsis;white-space:nowrap}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.dropzone{display:grid;place-items:center;width:100%;min-height:214px;padding:26px;border:1px dashed rgba(156,240,50,.78);border-radius:8px;background:radial-gradient(circle at 50% 0%,rgba(156,240,50,.12),transparent 38%),#090d0e8a;color:var(--text);cursor:pointer;transition:transform .18s ease,border-color .18s ease,background .18s ease}.dropzone:hover,.dropzone.is-dragging{transform:translateY(-1px);border-color:var(--lime);background:radial-gradient(circle at 50% 0%,rgba(156,240,50,.2),transparent 42%),#0d1315e6}.dropzone:active{transform:translateY(1px)}.dropzone strong{display:block;margin-top:16px;font-size:clamp(1.1rem,1.6vw,1.45rem)}.dropzone small{max-width:42ch;margin-top:8px;color:var(--muted);font-size:.95rem}.upload-glyph{width:62px;height:50px;border:5px solid var(--lime);border-bottom-color:transparent;border-radius:28px 28px 10px 10px;position:relative}.upload-glyph:before,.upload-glyph:after{content:"";position:absolute;left:50%;background:var(--lime);transform:translate(-50%)}.upload-glyph:before{bottom:-16px;width:5px;height:34px}.upload-glyph:after{bottom:8px;width:20px;height:20px;clip-path:polygon(50% 0,100% 62%,72% 62%,72% 100%,28% 100%,28% 62%,0 62%)}.track-list{display:grid;gap:10px;margin-top:12px}.track-strip{display:grid;grid-template-columns:72px minmax(0,1fr) minmax(92px,auto) minmax(150px,auto) auto 44px;gap:12px;align-items:center;padding:12px;border:1px solid var(--line);border-radius:8px;background:#090d0ead}.track-strip.is-active{border-color:#9cf032b8;background:linear-gradient(90deg,rgba(156,240,50,.09),transparent 42%),#090d0ec2}.track-select{display:block;width:72px;height:72px;padding:0;border:0;border-radius:8px;background:transparent;cursor:pointer}.album-tile{display:grid;place-items:center;width:72px;height:72px;overflow:hidden;border-radius:6px;background:repeating-radial-gradient(circle,rgba(245,248,242,.22) 0 2px,transparent 3px 8px),linear-gradient(135deg,#9cf03247,#ffffff0a)}.album-tile span{width:28px;height:28px;border-radius:50%;background:#0a0e0f}.track-meta,.track-bpm{display:grid;min-width:0;gap:6px}.track-meta strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.track-meta span,.track-bpm span,.empty-copy span{color:var(--muted)}.track-meta em{color:var(--danger);font-style:normal}.track-bpm{text-align:right}.track-bpm strong{color:var(--lime)}.icon-button{width:44px;height:44px;border:1px solid transparent;border-radius:8px;background:transparent;color:var(--muted);font-size:1.5rem;cursor:pointer}.icon-button:hover{border-color:var(--line);color:var(--text)}.row-action,.row-download,.clear-button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;border-radius:8px;font-weight:900;text-decoration:none}.row-action{padding:0 14px;border:1px solid rgba(156,240,50,.58);background:#9cf0321f;color:var(--lime);cursor:pointer}.row-action:disabled{cursor:not-allowed;opacity:.48}.row-download{padding:0 12px;border:1px solid var(--line);background:#ffffff0a;color:var(--text)}.row-download:disabled{cursor:not-allowed;opacity:.45}.clear-button{width:fit-content;padding:0 14px;border:1px solid var(--line);background:transparent;color:var(--muted);cursor:pointer}.empty-copy{display:grid;gap:6px;margin-top:18px;padding:16px 0 0;border-top:1px solid var(--line)}.bpm-readout{display:grid;grid-template-columns:1fr 46px 1fr;gap:22px;align-items:center;padding:18px 0 24px}.bpm-readout div:not(.arrow){display:grid;gap:8px}.bpm-readout span,.bpm-readout small{color:var(--muted)}.bpm-readout strong{font-size:clamp(2.8rem,5vw,4.9rem);line-height:.94;letter-spacing:0}.arrow{width:42px;height:2px;background:var(--muted);position:relative}.arrow:after{content:"";position:absolute;right:-1px;top:50%;width:13px;height:13px;border-top:2px solid var(--muted);border-right:2px solid var(--muted);transform:translateY(-50%) rotate(45deg)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{display:grid;gap:8px}.field span,.preset-row legend,.segmented legend{color:var(--muted);font-size:.84rem;font-weight:700}.field input{width:100%;height:56px;padding:0 16px;border:1px solid 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var(--line);background:#ffffff09;color:var(--text)}.primary-action:hover:not(:disabled),.secondary-action:hover:not(:disabled){transform:translateY(-1px)}.primary-action:active:not(:disabled),.secondary-action:active:not(:disabled){transform:translateY(1px)}.primary-action:disabled,.secondary-action:disabled{cursor:not-allowed;opacity:.46}.preview-panel{margin-top:12px;padding:14px;border:1px solid rgba(156,240,50,.32);border-radius:8px;background:#090d0eb3}.preview-panel audio{width:100%}.error-banner{display:flex;gap:14px;align-items:center;margin-top:12px;padding:14px 16px;border:1px solid rgba(255,125,115,.5);border-radius:8px;background:#ff7d731a;color:var(--danger)}.retention-footnote{position:relative;z-index:1;margin:12px 2px 0;color:var(--muted);font-size:.84rem}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:1ms!important;animation-iteration-count:1!important;transition-duration:1ms!important}}@media(max-width:1120px){.topbar,.workspace-grid,.output-bar{grid-template-columns:1fr}.process-status{padding-left:0;border-left:0}.output-bar dl{grid-template-columns:repeat(3,minmax(0,1fr))}.actions{width:100%}.primary-action,.secondary-action{flex:1}}@media(max-width:680px){.app-shell{padding:8px}.console{padding:10px}.topbar,.upload-panel,.conversion-panel,.tempo-lane,.output-bar{padding:16px}.brand-block,.privacy-note,.lane-heading,.actions{align-items:stretch;flex-direction:column}.target-chip{width:100%}.bpm-readout,.form-grid,.output-bar dl{grid-template-columns:1fr}.arrow{transform:rotate(90deg)}.track-strip{grid-template-columns:56px 1fr 44px}.album-tile,.track-select{width:56px;height:56px}.track-bpm,.row-action,.row-download{grid-column:1 / -1;text-align:left}.output-bar dl div{padding:10px 0;border-left:0;border-top:1px solid var(--line)}.beat-rail{grid-template-columns:repeat(18,1fr)}.beat-rail span:nth-child(n+19){display:none}}