:root{color-scheme:dark;--bg:#0d0f13;--panel:#14181f;--raised:#1b212b;--line:#262e3a;--ink:#e7ecf3;--muted:#8b97a8;--accent:#5eead4;--accent-ink:#04201c;--error:#fca5a5}
*{box-sizing:border-box}
[hidden]{display:none!important}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
button,input,select{font:inherit}
button,a,select{-webkit-tap-highlight-color:transparent}
button,a,select,input{touch-action:manipulation}
a{color:var(--accent);text-underline-offset:4px}
button{cursor:pointer}
button:disabled{cursor:not-allowed}
:focus-visible{outline:2px solid var(--accent);outline-offset:5px}
.wrap,.top{max-width:1140px;margin:auto;padding-left:28px;padding-right:28px}
.top{min-height:72px;display:flex;align-items:center;gap:14px;border-bottom:1px solid var(--line)}
.brand{display:flex}.brand img{display:block}.separator{color:var(--line)}
.tool-name{color:var(--ink);text-decoration:none;font-weight:600;font-size:15px}
nav{margin-left:auto;display:flex;gap:24px;font-size:14px}nav a{color:var(--muted);text-decoration:none}nav a:hover{color:var(--ink)}
.hero{padding:44px 0 14px}.eyebrow{font:12px/1.5 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.025em;color:var(--accent);margin:0 0 14px}
.privacy-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);margin:0 6px 1px 0}
h1{font-size:clamp(34px,4.5vw,52px);letter-spacing:-.045em;line-height:1.08;font-weight:620;margin:0 0 20px}h1 span{color:var(--muted)}
.lede{color:var(--muted);margin:0;font-size:16px;line-height:1.7}
.tool{display:grid;grid-template-columns:290px minmax(0,1fr);margin-top:28px;border:1px solid var(--line);border-radius:16px;background:var(--panel);overflow:hidden}
.settings{padding:26px 22px;border-right:1px solid var(--line);display:flex;flex-direction:column;align-items:stretch}
fieldset{border:0;padding:0;margin:0;min-width:0}legend,.label{display:block;font-size:12px;color:var(--muted);margin-bottom:9px;letter-spacing:.06em;text-transform:uppercase}
legend{padding:0}.formats{display:flex;gap:6px}.formats label{flex:1;position:relative}.formats input{position:absolute;opacity:0;width:1px;height:1px}.formats span{display:block;text-align:center;padding:10px 0;border:1px solid var(--line);border-radius:7px;font-size:14px;font-weight:600;background:var(--raised);cursor:pointer}.formats input:checked+span{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}.formats input:focus-visible+span{outline:2px solid var(--accent);outline-offset:4px}.formats input:disabled+span{cursor:not-allowed;opacity:.65}
.format-help{font-size:13px;line-height:1.6;color:var(--muted);margin:13px 0 24px;min-height:42px}
select{width:100%;background:var(--bg);color:var(--ink);border:1px solid var(--line);border-radius:7px;padding:10px 8px;font-size:13px;min-height:44px}select:disabled{opacity:.6}
.action-area{margin-top:24px}.primary,.secondary{display:flex;justify-content:center;align-items:center;gap:16px;width:100%;min-height:46px;border:1px solid transparent;border-radius:8px;padding:10px 16px;background:var(--accent);color:var(--accent-ink);font-size:14px;font-weight:650;text-decoration:none;transition:background .15s,transform .15s}.primary:hover:not(:disabled){background:#85f1df}.primary:active:not(:disabled){transform:translateY(1px)}.primary:disabled{color:var(--muted);background:var(--raised)}.secondary{background:transparent;border-color:var(--line);color:var(--ink);margin-top:10px}.secondary:hover{background:var(--raised)}
.setup-note{color:var(--muted);font-size:12px;line-height:1.6;margin:12px 0 0}.privacy-note{margin-top:auto;padding-top:28px;display:flex;gap:10px;align-items:center;font-size:12px;color:var(--muted);line-height:1.6}.privacy-note svg{color:var(--accent);flex-shrink:0}
.stage{padding:22px;min-width:0;display:flex;flex-direction:column;gap:18px}.drop{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-height:360px;width:100%;border:1px dashed #394554;border-radius:10px;background:var(--bg);color:var(--muted);padding:28px 14px;transition:border-color .15s,background .15s}.drop:hover,.stage.dragging .drop{border-color:var(--accent);background:#101c1e}.stage.dragging{outline:2px solid var(--accent);outline-offset:-4px}.sound-mark{color:var(--accent);margin-bottom:26px;max-width:100%}.drop strong{font-size:20px;font-weight:600;color:var(--ink);letter-spacing:-.025em}.drop span{font-size:14px}.drop small{font-size:12px;margin-top:20px}.stage-footnote{font-size:12px;margin:auto 0 0;color:var(--muted)}
.file-header{display:flex;gap:12px;align-items:center;margin-bottom:15px}.file-info{display:flex;flex:1;min-width:0;flex-direction:column;gap:2px}.file-info .label{margin:0}.file-info strong{font-size:15px;font-weight:600;overflow-wrap:anywhere}.file-info .muted{font:12px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace}.text-button{padding:8px 0 8px 10px;flex-shrink:0;background:none;border:0;color:var(--accent);font-size:13px;min-height:44px}.text-button:disabled{color:var(--muted)}
video{display:block;width:100%;max-height:250px;border-radius:8px;background:#080a0e}video[hidden]{display:none}.muted{color:var(--muted);font-size:13px}.preview-note{margin:10px 0 0}
.status-line{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;margin-bottom:8px}.status-line #percent{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--muted);font-variant-numeric:tabular-nums}progress{display:block;width:100%;height:6px;border:none;border-radius:8px;overflow:hidden;background:var(--raised);accent-color:var(--accent)}progress::-webkit-progress-bar{background:var(--raised);border-radius:8px}progress::-webkit-progress-value{background:var(--accent);border-radius:8px}progress::-moz-progress-bar{background:var(--accent)}progress:not([value]){opacity:.6}
.error{border-left:2px solid var(--error);padding:9px 12px;color:var(--error);background:#271b20;font-size:14px;margin:0;border-radius:0 6px 6px 0}
.result{border-top:1px solid var(--line);padding-top:22px}.result-header{display:flex;justify-content:space-between;align-items:center}.result .eyebrow{margin-bottom:4px}.result h2{font-size:21px;letter-spacing:-.025em;margin:0;font-weight:600}.done-mark{color:var(--accent);font-size:26px}.result .muted{margin:10px 0 14px;overflow-wrap:anywhere}.result audio{display:block;width:100%;height:42px}.download{margin-top:16px}.download span{font-size:20px;line-height:1}
.how{padding:46px 0 30px}.how h2{font-size:23px;letter-spacing:-.025em;font-weight:600;margin:0 0 22px}.how ol{counter-reset:steps;list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}.how li{counter-increment:steps;border-top:1px solid var(--line);padding-top:16px}.how li:before{content:counter(steps,decimal-leading-zero);font:12px ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--accent);display:block;margin-bottom:12px}.how strong{font-size:15px;font-weight:600}.how p{font-size:14px;color:var(--muted);margin:6px 0 0;line-height:1.7}
.faq{max-width:780px;padding-bottom:32px}details{border-bottom:1px solid var(--line);padding:16px 0}summary{font-size:14px;cursor:pointer;font-weight:550}details p{font-size:14px;color:var(--muted);line-height:1.75;margin:12px 0 0}
footer.wrap{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding-top:24px;padding-bottom:32px;margin-top:18px;font-size:12px;color:var(--muted)}footer a{color:var(--muted);text-decoration:none}footer a:hover{color:var(--accent)}
@media(max-width:720px){.wrap,.top{padding-left:18px;padding-right:18px}.top{gap:10px;flex-wrap:wrap;padding-top:16px;padding-bottom:16px}.top nav{gap:12px;font-size:12px}.top nav a:last-child{display:none}.tool-name{font-size:13px}.hero{padding-top:32px}.tool{grid-template-columns:1fr}.settings{border-right:0;border-bottom:1px solid var(--line);padding:20px}.format-help{min-height:0;margin-bottom:18px}.privacy-note{display:none}.stage{padding:18px}.drop{min-height:280px}.how ol{grid-template-columns:1fr;gap:24px}.how{padding-top:34px}.how h2{font-size:21px}.how li{padding-left:36px;position:relative}.how li:before{position:absolute;left:0;top:20px}.file-header{align-items:flex-start}.file-header .text-button{max-width:95px;text-align:right}.desktop-break{display:none}footer.wrap{flex-direction:column;gap:8px}.action-area{margin-top:18px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.top nav{flex-wrap:wrap;max-width:100%}
@media(max-width:720px){.stage{grid-row:1}.settings{border-bottom:0;border-top:1px solid var(--line)}}