:root{--navy:#211c4e;--navy-top:#2b2563;--on-navy:#fff;--on-navy-muted:#d4d0f0;--violet:#6246ea;--violet-hover:#5236d6;--violet-light:#b3a4ff;--violet-soft:#efecfe;--violet-ink:#33287f;--ink:#23213a;--muted:#6b6782;--line:#e2dff0;--bg:#f7f6fb;--chip:#f2f0f8;--ok:#1f6b45;--ok-soft:#e6f4ec;--danger:#b23b50;--danger-soft:#fff0f2;--warn:#805b22;--warn-soft:#fff6e6;--r:12px;--side:max(16px,calc((100% - 720px)/2))}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:Tahoma,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;font-size:15px;line-height:1.8}
[hidden]{display:none!important}
.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}
button,a,select,input,textarea{font:inherit}
a{color:var(--violet);text-underline-offset:4px}
:focus-visible{outline:3px solid var(--violet);outline-offset:3px}
p{margin:8px 0;color:var(--muted)}
h2{font-size:18px;margin:0;font-weight:700;overflow-wrap:anywhere}
.small{font-size:12px;line-height:1.9;margin:4px 0}
.row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}.grow{flex:1}
button{cursor:pointer;min-height:44px;padding:8px 16px;border:1px solid var(--line);border-radius:var(--r);background:#fff;color:var(--ink);font-size:14px;font-weight:600;transition:background .15s,border-color .15s}
button:hover:not(:disabled){border-color:var(--violet);background:var(--violet-soft)}
button:active:not(:disabled){transform:translateY(1px)}
button:disabled{opacity:.5;cursor:not-allowed}
.primary{background:var(--violet);border-color:var(--violet);color:#fff}
.primary:hover:not(:disabled){background:var(--violet-hover);border-color:var(--violet-hover);color:#fff}
.link{min-height:44px;padding:0 4px;border:0;background:none;color:var(--violet);text-decoration:underline;text-underline-offset:4px;font-size:inherit}
.link:hover:not(:disabled){background:none}
.notice{border-radius:var(--r);padding:12px 16px;margin:12px 0;background:var(--violet-soft);color:var(--violet-ink);font-size:14px;overflow-wrap:anywhere}
.notice.error{background:var(--danger-soft);color:var(--danger)}.notice.warn{background:var(--warn-soft);color:var(--warn)}
.ref{display:block;font-size:11px;unicode-bidi:plaintext}.ltr{direction:ltr;unicode-bidi:plaintext;overflow-wrap:anywhere}

header{background:var(--navy);color:var(--on-navy);display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;padding:14px var(--side)}
.brand{font-size:24px;font-weight:900;letter-spacing:-.5px;direction:ltr}.brand span{color:var(--violet-light)}
.header-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
header button,header a{min-height:44px;padding:6px 14px;border-radius:999px;border:1px solid #ffffff40;background:transparent;color:var(--on-navy);font-size:13px;font-weight:600;text-decoration:none;display:inline-flex;align-items:center}
header button:hover:not(:disabled){background:#ffffff1a;border-color:#ffffff80;color:var(--on-navy)}
header [aria-pressed=true]{background:var(--violet);border-color:var(--violet)}
header :focus-visible,.hero :focus-visible{outline-color:var(--violet-light)}
.panel :focus-visible{outline-color:var(--violet)}
#billingPanel,#authGate{max-width:720px;margin:12px auto}
#billingPanel{margin:12px var(--side);background:#fff;border:2px solid var(--violet);border-radius:16px;padding:14px 18px}
#planPrice{font-size:22px;font-weight:800;color:var(--ink);margin:2px 0}
.perks{margin:6px 0;padding-inline-start:20px;color:var(--ink);font-size:14px}
#billingInfo{color:var(--ink);font-weight:600}
.plan-actions{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 4px}.plan-actions button{flex:1 1 auto}
dialog.upsell{width:min(440px,calc(100vw - 32px))}.upsell .plan{margin-top:12px;padding:10px 14px;border-radius:var(--r);background:var(--violet-soft);color:var(--violet-ink)}
#authGate:not([hidden]){display:flex;justify-content:center}

.hero{background:linear-gradient(var(--navy),var(--navy-top) calc(100% - 110px),var(--bg) 0);color:var(--on-navy);padding:6px var(--side) 0}
h1{font-size:clamp(26px,5.5vw,36px);line-height:1.45;font-weight:800;margin:6px 0 4px;color:var(--on-navy)}
.subhead{color:var(--on-navy-muted);margin:0 0 16px;font-size:15px}
.panel{background:#fff;color:var(--ink);border-radius:20px;padding:12px;box-shadow:0 12px 32px #211c4e1f}
.composer{background:var(--bg);border-radius:14px;padding:8px 12px 8px;border:2px solid var(--line);margin-bottom:14px}
.composer:focus-within{border-color:var(--violet)}
.composer :focus-visible{outline-color:var(--violet)}
#links{display:block;width:100%;min-height:92px;border:0;resize:vertical;background:transparent;color:var(--ink);font-size:16px;line-height:1.8;padding:4px 2px;outline:none}
#links::placeholder{color:#9a96a6}
.composer-bar{display:flex;align-items:center;justify-content:space-between;gap:8px;border-top:1px solid var(--line);padding-top:8px;margin-top:6px}
.attach,.composer-bar button{display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:6px 14px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--violet);font-size:13px;font-weight:600;cursor:pointer}
.attach::before{content:'+';font-size:18px;line-height:1}
#files:focus-visible+.attach{outline:3px solid var(--violet);outline-offset:2px}
.file-list{list-style:none;margin:0;padding:6px 0;display:flex;flex-wrap:wrap;gap:6px}
.file-list li{display:inline-flex;align-items:center;gap:2px;max-width:100%;background:var(--violet-soft);color:var(--violet-ink);border-radius:999px;padding-inline:12px 2px;font-size:13px}
.file-list bdi{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.file-remove{min-height:44px;min-width:44px;padding:0;border:0;background:transparent;color:inherit;border-radius:50%;font-size:18px}

#transcribePanel,#history,.info{max-width:752px;margin:0 auto;padding:0 16px}
.tool{padding-top:4px}
.targets{border:0;margin:0 0 14px;padding:0;display:flex;flex-wrap:wrap;gap:8px;align-items:center;min-width:0}
.targets legend{font-size:13px;font-weight:700;margin-bottom:8px;padding:0}
.chip{position:relative;display:inline-flex;align-items:center;min-height:44px;padding:6px 14px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--ink);font-size:14px;cursor:pointer}
.chip input{position:absolute;inset:0;opacity:0;margin:0;cursor:pointer}
.chip:has(input:checked),select.chip.active{background:var(--violet);border-color:var(--violet);color:#fff}
.chip:has(input:focus-visible){outline:3px solid var(--violet);outline-offset:2px}
select.chip{max-width:100%}
.start{width:100%;min-height:52px;font-size:16px;font-weight:700;border-radius:14px;margin-top:4px}
.platforms{display:flex;align-items:center;gap:10px;margin:0 0 16px}
.platforms-label{flex:none;font-size:12px;color:var(--on-navy-muted)}
.platforms ul{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:0}
.platforms li{display:flex;flex-direction:column;align-items:center;gap:4px;font-size:11px;color:var(--on-navy-muted);direction:ltr;transition:color .2s}
.platforms li span{display:none}
.platforms svg{display:block;width:38px;height:38px;padding:9px;border-radius:12px;background:#fff;fill:#000;transition:transform .2s,box-shadow .2s}
[data-p=instagram] svg{fill:#e4405f;color:#e4405f}[data-p=youtube] svg{fill:#f00}[data-p=snapchat] svg{background:#fffc00}[data-p=facebook] svg{fill:#0866ff}
.platforms li.hint svg{transform:translateY(-3px);box-shadow:0 0 0 2px #ffffff99}
.platforms li.on{color:#fff;font-weight:700}.platforms li.on svg{box-shadow:0 0 0 3px var(--violet-light)}
.tool>.small{text-align:center}
.trust-note{color:var(--ok)}.trust-note::before{content:'✓ '}
.meta-line{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:0 14px;margin:8px 0 0;font-size:12px;line-height:1.7;color:var(--muted);text-align:center}

.box{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;margin-top:12px}
.card{overflow:hidden}
.card-head{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}
.card-head .row{flex-wrap:nowrap;align-items:flex-start;gap:8px}
.card-head h2{flex:1;min-width:0;font-size:15px;line-height:1.7}
.compact-task .card-head{margin-bottom:4px}
.task-status{flex:none;font-size:12px;padding:2px 10px;border-radius:999px;background:var(--chip);color:var(--muted);white-space:nowrap}
.task-status.processing{background:var(--violet-soft);color:var(--violet)}.task-status.done{background:var(--ok-soft);color:var(--ok)}.task-status.failed{background:var(--danger-soft);color:var(--danger)}
.task-remove{min-height:44px;font-size:12px;padding:4px 10px}
.record-toggle,.icon-button{flex:none;display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;padding:0;border-color:transparent;border-radius:50%;background:transparent;color:var(--violet)}
.record-toggle::before{content:'';width:9px;height:9px;border:solid currentColor;border-width:2px 2px 0 0;transform:rotate(-45deg);margin-top:4px}
.record-toggle[aria-expanded=false]::before{transform:rotate(135deg);margin-top:-4px}
.source-row{display:flex;align-items:center;gap:8px;min-width:0;font-size:12px;color:var(--muted)}
.source-row a{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;direction:ltr;color:var(--muted);text-decoration:none}
.platform-badge,.language-badge{flex:none;font-size:11px;padding:2px 9px;border-radius:999px;background:var(--chip);color:#4a4658;unicode-bidi:isolate}
.steps{list-style:none;display:flex;gap:4px;padding:0;margin:8px 0}
.steps li{flex:1;min-width:0;border-top:5px solid #eceaf3;padding-top:6px;font-size:11px;color:var(--muted);text-align:center}
.steps li.done{border-color:var(--violet);color:var(--ink)}
.steps li.current{border-color:#c9bfff;color:var(--violet);font-weight:700;animation:pulse 1.2s ease-in-out infinite alternate}
@keyframes pulse{to{border-color:var(--violet)}}
.switch{display:flex;background:var(--chip);border-radius:var(--r);padding:3px;margin-bottom:10px}
.switch button{flex:1;border:0;background:transparent;color:var(--muted);min-height:44px}
.switch .active{background:#fff;color:var(--violet)}
.pane{display:none;min-width:0}.pane.shown{display:block}
.pane-label{display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap;margin:0;padding:8px 12px;background:var(--chip);border:1px solid var(--line);border-bottom:0;border-radius:var(--r) var(--r) 0 0;font-size:13px;font-weight:700;color:#3d3758}
.pane[data-pane=translation] .pane-label{background:var(--violet-soft);color:var(--violet-ink)}
.count{font-size:11px;font-weight:400;color:var(--muted)}
.pane textarea{display:block;width:100%;height:280px;min-height:200px;resize:vertical;border:1px solid var(--line);border-radius:0 0 var(--r) var(--r);padding:14px;background:#fff;color:var(--ink);font-size:15px;line-height:1.9}
.pane textarea:focus{outline:none;border-color:var(--violet)}
.condensed{white-space:pre-wrap;background:#faf9fc;border:1px solid var(--line);border-radius:var(--r);padding:14px;color:var(--ink);overflow-wrap:anywhere}
.copy-main{width:100%;margin-top:12px;min-height:48px}
.actions{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.actions>button{flex:1 1 auto;font-size:13px;padding:6px 12px}
.export-menu{position:relative;flex:1 1 auto;display:flex}
.export-menu>summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:6px;width:100%;min-height:44px;padding:6px 12px;border:1px solid var(--line);border-radius:var(--r);background:#fff;font-size:13px;font-weight:600}
.export-menu>summary::-webkit-details-marker{display:none}.export-menu>summary::after{content:'\25BE';font-weight:400}
.export-options{position:absolute;inset-inline-start:0;bottom:calc(100% + 6px);z-index:5;display:flex;flex-direction:column;gap:4px;min-width:min(200px,100%);padding:6px;background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:0 8px 24px #211c4e1a}
.export-options button{width:100%;text-align:start}
dialog{width:min(760px,calc(100vw - 24px));max-height:90vh;border:1px solid var(--line);border-radius:16px;padding:20px;color:var(--ink)}
dialog::backdrop{background:#211c4e99}dialog textarea{width:100%;min-height:60vh}

#history{padding-top:18px}
.history-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);margin:8px 0;overflow:hidden}
.history-card summary{list-style:none;cursor:pointer;display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:10px 14px}
.history-card summary::-webkit-details-marker{display:none}
.history-card .topic{order:-1;flex-basis:100%;min-width:0;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.history-card time{flex:1}
.history-card time{font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}
.history-card summary>.source-row{flex-basis:100%}
.history-card .card{border:0;margin:0;border-radius:0;padding-top:0}

#demo{margin-top:28px}
#demo h2{font-size:20px;margin:0 0 4px}
.demo-body{display:grid;grid-template-columns:112px minmax(0,1fr);gap:10px;align-items:start;margin-top:12px}
#demo video{display:block;width:100%;height:auto;border-radius:var(--r);background:var(--navy)}
.demo-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:12px}
.demo-tabs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
.demo-tabs button{padding:4px 14px;border-radius:999px;border-color:transparent;background:var(--chip);font-size:13px}
.demo-tabs [aria-selected=true],.demo-tabs [aria-selected=true]:hover:not(:disabled){background:var(--violet);border-color:var(--violet);color:#fff}
.demo-text{margin:0 0 12px;white-space:pre-line;line-height:1.9;overflow-wrap:anywhere}
#demoTr{color:var(--violet-ink)}
.demo-actions{display:flex;flex-wrap:wrap;gap:8px}
.demo-actions .primary{flex:1}
#demo .small{margin:8px 0 0}
.info{margin-top:40px}
.info h2{font-size:20px;margin:28px 0 12px}
.steps-cards{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px;counter-reset:s}
.steps-cards li{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px;font-size:14px;counter-increment:s}
.steps-cards li::before{content:counter(s);display:block;font-size:22px;font-weight:800;color:var(--violet)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:12px;padding:12px 0;font-weight:700}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';color:var(--violet);font-size:20px;line-height:1}
.faq details[open] summary::after{content:'−'}
.guides{margin-top:24px;font-size:14px}
footer{max-width:752px;margin:40px auto 0;padding:20px 16px;border-top:1px solid var(--line);text-align:center;font-size:12px;color:var(--muted)}
footer a{color:var(--muted)}

@media(min-width:760px){.switch{display:none}.panes{display:grid;grid-template-columns:1fr 1fr;gap:12px}.panes.original-only{grid-template-columns:1fr}.pane{display:block}}
@media(min-width:1000px){
:root{--side:max(32px,calc((100% - 1160px)/2))}
.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,540px);grid-template-areas:"h panel" "s panel" "p panel";grid-template-rows:auto auto 1fr;column-gap:64px;padding-top:40px;padding-bottom:56px;background:linear-gradient(var(--navy),var(--navy-top))}
.hero h1{grid-area:h;font-size:46px;line-height:1.35;margin-top:28px}
.subhead{grid-area:s;font-size:18px;margin-bottom:28px}
.hero .platforms{grid-area:p;align-self:start;flex-direction:column;align-items:flex-start;gap:12px}
.platforms ul{gap:14px}.platforms li span{display:block}
.platforms svg{width:48px;height:48px;padding:12px;border-radius:14px}
.panel{grid-area:panel;padding:18px}
#transcribePanel,#history,.info,footer{max-width:1192px}
.tool{padding-top:20px}
.info h2{font-size:24px}
#demo h2{font-size:24px}
.demo-body{grid-template-columns:220px minmax(0,1fr);gap:20px}
.demo-card{padding:18px}
.demo-actions .primary{flex:0 1 auto;min-width:200px}
.faq{display:grid;grid-template-columns:1fr 1fr;column-gap:40px;align-items:start}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}button,.platforms svg{transition:none}.steps li.current{animation:none}.platforms li.hint svg{transform:none}}