:root{color-scheme:light;--primary:#2B5CE6;--accent:#19C2A0;--bg:#F7F8FB;--text:#141826;--surface:#FFFFFF;--surface-2:#E9EBEE;--muted:#6A6D77;--border:#D9DBDF;--line:#DCDDE1;--primary-strong:#2B5CE6;--primary-hover:#2651CA;--primary-text:#2B5CE6;--link:#2B5CE6;--accent-text:#15A084;--p-soft:rgba(43,92,230,0.1);--a-soft:rgba(25,194,160,0.18);--dz-bg:rgba(43,92,230,0.035);--dz-border:#B0C1F4;--band-bg:#EFF2FA;--header-bg:rgba(247,248,251,0.82);--footer-bg:#F0F1F5;--warn-bg:#FFF6E0;--warn-border:#F1D48A;--warn-ink:#A86B00;--shadow:0 18px 40px -24px rgba(20,24,40,.28)}
@media (prefers-color-scheme:dark){:root{color-scheme:dark;--primary:#3C69E8;--accent:#19C2A0;--bg:#0F1320;--text:#E6E9F2;--surface:#1B1F2B;--surface-2:#252834;--muted:#999CA6;--border:#2E323D;--line:#353944;--primary-strong:#2B5CE6;--primary-hover:#406CE8;--primary-text:#5079EA;--link:#5079EA;--accent-text:#19C2A0;--p-soft:rgba(43,92,230,0.18);--a-soft:rgba(25,194,160,0.16);--dz-bg:rgba(43,92,230,0.06);--dz-border:#1E3B8D;--band-bg:#11172C;--header-bg:rgba(15,19,32,0.82);--footer-bg:#0B0E18;--warn-bg:#3A2E12;--warn-border:#6B5420;--warn-ink:#F5C35B;--shadow:0 18px 40px -24px rgba(0,0,0,.7)}}
/* Shared layout. Color tokens are generated per brand by build.py and prepended. */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:80px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 var(--font);text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{color:var(--link)}
a:hover{text-decoration-thickness:2px}
h1,h2,h3{font-family:var(--font-head);line-height:1.15;margin:0 0 .5em;letter-spacing:var(--tracking)}
h1{font-size:clamp(2rem,4.6vw,3.3rem);font-weight:var(--h1-weight)}
h2{font-size:clamp(1.5rem,2.8vw,2.1rem);font-weight:var(--h2-weight)}
h3{font-size:1.125rem;font-weight:650}
p{margin:0 0 1em}
ul,ol{padding:0;margin:0;list-style:none}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:absolute;left:-999px;top:8px;background:var(--surface);padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:16px}
.wrap{width:100%;max-width:1160px;margin:0 auto;padding:0 20px}
.narrow{max-width:780px}
.muted{color:var(--muted)}
.lead{font-size:1.15rem;color:var(--muted);max-width:40em}
.section{padding:clamp(48px,7vw,88px) 0}
.sec-head{max-width:640px;margin-bottom:36px}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--primary-text);margin-bottom:14px}
.icon{width:24px;height:24px;flex:none}
.icon-sm{width:18px;height:18px;flex:none}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:inherit;font-weight:650;line-height:1;padding:12px 20px;border-radius:var(--radius-sm);border:2px solid transparent;cursor:pointer;text-decoration:none;transition:background .15s,border-color .15s,color .15s,transform .15s;white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.btn-sm{padding:9px 14px;font-size:.92rem}
.btn-lg{padding:15px 24px;font-size:1.05rem}
.btn-block{width:100%}
.btn-primary{background:var(--primary-strong);color:#fff}
.btn-primary:not(:disabled):hover{background:var(--primary-hover)}
.btn-outline{border-color:var(--primary-text);color:var(--primary-text);background:transparent}
.btn-outline:hover{background:var(--p-soft)}
.btn-ghost{color:var(--text);background:transparent}
.btn-ghost:hover{background:var(--surface-2)}
.btn-light{background:#fff;color:var(--primary-strong)}
.btn-light:hover{background:rgba(255,255,255,.9)}
.link-btn{background:none;border:0;padding:0;font:inherit;font-weight:650;color:var(--link);cursor:pointer;text-decoration:underline}
.icon-btn{background:none;border:0;padding:6px;border-radius:8px;color:var(--muted);cursor:pointer}
.icon-btn:hover{background:var(--surface-2);color:var(--text)}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:var(--header-bg);backdrop-filter:saturate(160%) blur(12px);-webkit-backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid var(--border)}
.header-in{display:flex;align-items:center;gap:20px;min-height:66px}
.brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-head);font-weight:750;font-size:1.15rem;color:var(--text);text-decoration:none;letter-spacing:var(--tracking)}
.logo-mark{flex:none}
.site-nav{margin-left:auto;display:flex;align-items:center;gap:22px}
.site-nav ul{display:flex;gap:4px}
.site-nav ul a{display:block;padding:8px 12px;border-radius:8px;color:var(--text);text-decoration:none;font-weight:550}
.site-nav ul a:hover{background:var(--surface-2)}
.site-nav ul a[aria-current=page]{color:var(--primary-text)}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--border);border-radius:10px;padding:7px;color:var(--text);cursor:pointer}
@media (max-width:820px){
  .js .nav-toggle{display:block}
  .js .site-nav{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:12px;padding:12px 20px 20px;background:var(--bg);border-bottom:1px solid var(--border);box-shadow:var(--shadow)}
  .js .site-nav.open{display:flex}
  .site-nav ul{flex-direction:column}
  .site-nav ul a{padding:12px}
  html:not(.js) .header-in{flex-wrap:wrap;padding:10px 20px}
  html:not(.js) .site-nav{width:100%;flex-wrap:wrap}
}

/* hero */
.hero{padding:clamp(40px,7vw,96px) 0 clamp(32px,5vw,64px);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.hero-copy h1{max-width:13em}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0}
.points{display:flex;flex-direction:column;gap:8px;color:var(--muted);font-size:.97rem}
.points li{display:flex;align-items:center;gap:10px}
.points .icon-sm{color:var(--accent-text)}
.hero-art{min-width:0}
@media (max-width:900px){.hero-grid{grid-template-columns:1fr;gap:36px}}

/* illustrations */
.ill .p{fill:var(--primary)}
.ill .a{fill:var(--accent)}
.ill .a-fill{fill:var(--accent);stroke:none}
.ill .s{fill:var(--surface)}
.ill .s2{fill:var(--surface-2)}
.ill .st{stroke:var(--border);stroke-width:1.5}
.ill .ln{fill:var(--line)}
.ill .ink{fill:var(--text);opacity:.8}
.ill .p-soft{fill:var(--p-soft)}
.ill .a-soft{fill:var(--a-soft)}
.ill .p-stroke{stroke:var(--primary)}
.ill .dash{stroke-dasharray:2 9}
.ill .fold{fill:none;stroke:var(--border);stroke-width:1.5}
.ill .badge-t{fill:#fff;font:700 12px var(--font);letter-spacing:.04em}
.ill .small-t{fill:var(--muted);font:600 13px var(--font)}
.ill .tile-t{fill:var(--text);font:800 11px var(--font);letter-spacing:.04em}
.ill .gate-bolt{fill:var(--accent)}
.ill .nf-t{fill:var(--primary-text);font:800 64px var(--font-head)}

/* converter */
.converter{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:clamp(20px,4vw,34px);box-shadow:var(--shadow)}
.conv-title{font-size:1.4rem}
.dropzone{position:relative;border:2px dashed var(--dz-border);border-radius:calc(var(--radius) - 4px);background:var(--dz-bg);padding:34px 20px;text-align:center;transition:border-color .15s,background .15s;margin:18px 0}
.dropzone.over{border-color:var(--primary);background:var(--p-soft)}
.dz-icon{width:40px;height:40px;margin:0 auto 10px;color:var(--primary-text)}
.dz-title{font-weight:700;font-size:1.1rem;margin:0 0 4px}
.dz-hint{color:var(--muted);font-size:.92rem;margin-bottom:16px}
.dropzone .btn{cursor:pointer}
.dropzone:focus-within .btn{outline:3px solid var(--accent);outline-offset:2px}
.dz-file{display:flex;align-items:center;gap:14px;text-align:left}
.dz-file[hidden],.dz-empty[hidden]{display:none}
.dz-file-icon{width:32px;height:32px;color:var(--primary-text)}
.dz-file-meta{flex:1;min-width:0;display:flex;flex-direction:column}
.dz-file-meta strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.dz-file-meta span{color:var(--muted);font-size:.9rem}
.has-file .dropzone{padding:18px 20px;border-style:solid}
.conv-row{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap}
.field{flex:1;min-width:160px;display:flex;flex-direction:column;gap:6px;font-size:.9rem;font-weight:600;color:var(--muted)}
.field select{font:inherit;font-size:1rem;color:var(--text);background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:11px 12px;min-height:46px}
.field select:disabled{opacity:.6}
.conv-go{min-height:46px;min-width:140px}
.progress{margin-top:18px}
.progress[hidden],.alert[hidden],.signup-note[hidden]{display:none}
.progress-top{display:flex;justify-content:space-between;font-size:.92rem;font-weight:600;margin-bottom:8px}
.progress-top [data-pct]{color:var(--muted);font-variant-numeric:tabular-nums}
.bar{height:10px;border-radius:99px;background:var(--surface-2);overflow:hidden}
.bar i{display:block;height:100%;width:0;border-radius:inherit;background:linear-gradient(90deg,var(--primary),var(--accent));transition:width .12s linear}
.alert{display:flex;gap:12px;margin-top:18px;padding:16px;border-radius:var(--radius-sm);background:var(--warn-bg);border:1px solid var(--warn-border);color:var(--text)}
.alert-icon{color:var(--warn-ink);flex:none}
.alert p{margin:4px 0 8px}
.conv-note{display:flex;align-items:center;gap:8px;margin:18px 0 0;font-size:.88rem;color:var(--muted)}

/* formats */
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{display:flex;flex-direction:column;padding:12px 16px;min-width:150px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm)}
.chip strong{font-size:1.05rem;letter-spacing:.03em;color:var(--primary-text)}
.chip span{font-size:.85rem;color:var(--muted)}
.fgroups{display:grid;gap:28px}
.fgroup h3{font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:12px}
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px}
.tile{display:flex;align-items:center;gap:14px;padding:14px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm)}
.tile-ico{position:relative;width:44px;flex:none}
.tile-ico svg{width:44px;height:55px;fill:var(--p-soft);stroke:var(--primary);stroke-width:1.5}
.tile-ico .fold{fill:none}
.tile-ico b{position:absolute;left:0;right:0;bottom:12px;text-align:center;font-size:.62rem;letter-spacing:.03em;color:var(--primary-text)}
.tile-txt{display:flex;flex-direction:column}
.tile-txt small{color:var(--muted)}

/* features */
.features{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.feature{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px}
.feature p{color:var(--muted);margin:0}
.f-ico{display:inline-flex;padding:10px;border-radius:12px;background:var(--p-soft);color:var(--primary-text);margin-bottom:16px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;counter-reset:s}
.step{display:flex;gap:16px;align-items:flex-start}
.step p{color:var(--muted);margin:0}
.step-n{flex:none;display:inline-grid;place-items:center;width:44px;height:44px;border-radius:50%;background:var(--primary-strong);color:#fff;font-weight:750;font-variant-numeric:tabular-nums}
@media (max-width:820px){.steps{grid-template-columns:1fr}}

/* cta band */
.cta-band{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;padding:clamp(24px,4vw,44px);border-radius:var(--radius);background:var(--primary-strong);color:#fff}
.cta-band h2{margin-bottom:.25em}
.cta-band p{margin:0;opacity:.92}

/* page head */
.page-head{padding:clamp(40px,6vw,76px) 0 0}
.page-head + .section{padding-top:clamp(28px,4vw,44px)}

/* pricing */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:start}
.plan{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px}
.plan-hl{border:2px solid var(--primary);box-shadow:var(--shadow)}
.plan-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.plan-top h2{font-size:1.3rem;margin:0}
.badge{font-size:.75rem;font-weight:700;padding:4px 10px;border-radius:99px;background:var(--a-soft);color:var(--accent-text)}
.plan-blurb{color:var(--muted);margin:6px 0 18px}
.price{margin:0 0 20px;display:flex;align-items:baseline;gap:4px}
.amount{font-family:var(--font-head);font-size:2.6rem;font-weight:800;line-height:1;letter-spacing:-.02em}
.per{color:var(--muted)}
.plan-feats{margin-top:22px;display:grid;gap:10px}
.plan-feats li,.includes li{display:flex;gap:10px;align-items:flex-start}
.plan-feats .icon-sm,.includes .icon-sm{margin-top:3px;color:var(--accent-text)}
.signup-note{margin:20px 0 0;padding:14px 16px;border-radius:var(--radius-sm);background:var(--warn-bg);border:1px solid var(--warn-border);text-align:center}
.includes,.compare{margin-top:48px}
.includes h2,.compare h2{font-size:1.35rem}
.includes ul{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}
.table-scroll{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface)}
table{width:100%;border-collapse:collapse;min-width:520px}
th,td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--border)}
tbody tr:last-child>*{border-bottom:0}
thead th{font-size:.95rem}
tbody th{font-weight:550;color:var(--muted)}
.fine{margin-top:32px;font-size:.88rem;color:var(--muted)}
@media (max-width:900px){.plans{grid-template-columns:1fr;max-width:480px;margin:0 auto}}

/* prose, faq, contact, 404 */
.prose h2{font-size:1.4rem;margin-top:1.8em}
.prose h2:first-child{margin-top:0}
.prose h3{margin-top:1.4em}
.prose ul,.prose ol{padding-left:1.3em;margin:0 0 1em}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin:.35em 0}
.prose li::marker{color:var(--primary-text)}
.faq{display:grid;gap:10px}
.qa{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm)}
.qa summary{cursor:pointer;padding:16px 48px 16px 18px;font-weight:650;position:relative;list-style:none}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"";position:absolute;right:20px;top:50%;width:9px;height:9px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:translateY(-70%) rotate(45deg);transition:transform .2s}
.qa[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.qa p{padding:0 18px 18px;margin:0;color:var(--muted)}
.faq-more{display:flex;align-items:center;gap:8px;margin-top:28px}
.email-card{display:flex;align-items:center;gap:14px;padding:22px 24px;margin-bottom:32px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);font-size:clamp(1.1rem,3vw,1.45rem);font-weight:700;color:var(--primary-text);text-decoration:none;word-break:break-all}
.email-card:hover{border-color:var(--primary)}
.email-ico{flex:none;width:28px;height:28px}
.nf-in{text-align:center;display:flex;flex-direction:column;align-items:center}
.nf-ill{width:220px;margin-bottom:24px}
.nf .lead{margin:0 auto 28px}

/* footer */
.site-footer{border-top:1px solid var(--border);background:var(--footer-bg);padding:48px 0 24px;font-size:.94rem}
.footer-in{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:32px}
.f-brand p{color:var(--muted);margin:12px 0 0;max-width:24em}
.f-col h2{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:12px;font-family:var(--font)}
.f-col ul{display:grid;gap:8px}
.f-col a,.f-brand a:not(.brand){color:var(--text);text-decoration:none}
.f-col a:hover,.f-brand a:not(.brand):hover{color:var(--primary-text);text-decoration:underline}
.f-bottom{margin-top:36px;padding-top:20px;border-top:1px solid var(--border);color:var(--muted)}
.f-bottom p{margin:0}
@media (max-width:760px){.footer-in{grid-template-columns:1fr 1fr}.f-brand{grid-column:1/-1}}
/* Variant A: soft, airy, rounded */
:root{
  --font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  --font-head:var(--font);
  --radius:20px;--radius-sm:12px;
  --tracking:-.015em;--h1-weight:750;--h2-weight:700;
}
.hero{background:radial-gradient(1200px 500px at 85% -10%,var(--p-soft),transparent 70%)}
.hero-art .hero-ill{width:100%;max-width:540px;margin-left:auto}
.upload-sec{padding-top:0}
.upload-sec .converter{margin-top:-8px}
.formats-sec{background:var(--band-bg);border-block:1px solid var(--border)}
.fgroups{grid-template-columns:repeat(3,1fr)}
.fgroup .chips{flex-direction:column}
.fgroup .chip{flex-direction:row;align-items:baseline;justify-content:space-between;gap:12px}
@media (max-width:900px){.fgroups{grid-template-columns:1fr}.fgroup .chips{flex-direction:row}.fgroup .chip{flex-direction:column;gap:0}}
.features.n4{grid-template-columns:repeat(4,1fr)}
@media (max-width:1000px){.features.n4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.features.n4{grid-template-columns:1fr}}
.how-sec .sec-head{text-align:center;margin-inline:auto}
.steps{position:relative}
.step{flex-direction:column;align-items:center;text-align:center;padding:0 12px}
.step-n{width:52px;height:52px;font-size:1.05rem;box-shadow:0 0 0 8px var(--p-soft)}
@media (min-width:821px){.steps::before{content:"";position:absolute;top:26px;left:16%;right:16%;border-top:2px dashed var(--border)}.step-n{position:relative}}
.plan-hl{transform:translateY(-8px)}
@media (max-width:900px){.plan-hl{transform:none}}