/* downf.io: independent brand system */
:root{
  --brand-primary:#087dff;--brand-secondary:#020a2b;--brand-accent:#05d9ed;
  --surface:#ffffff;--surface-muted:#f2f7ff;--text-primary:#06102f;--text-secondary:#5b6680;
  --border:#d7e2f3;--success:#138a54;--warning:#b66b00;--danger:#c33b4b;--radius:18px;--shadow:0 22px 60px rgba(2,10,43,.12);
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--surface-muted);color:var(--text-primary);font-family:Arial, Helvetica, sans-serif;line-height:1.55}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{border:0;cursor:pointer}img{max-width:100%;height:auto}.brand-logo{display:block;width:auto;max-width:190px;max-height:54px;object-fit:contain}.wordmark{font-size:1.8rem;font-weight:800;letter-spacing:-.04em}.wordmark span{color:var(--brand-primary)}
.skip-link{position:fixed;left:1rem;top:-4rem;background:var(--brand-secondary);color:#fff;padding:.75rem;z-index:100}.skip-link:focus{top:1rem}:focus-visible{outline:3px solid var(--brand-accent);outline-offset:3px}
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.proof-strip,.content-section,.source-profile{max-width:1160px;margin:4rem auto;padding:0 24px}.proof-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--border);padding:1px}.proof-strip article{background:var(--surface);padding:1.4rem}.proof-strip p{color:var(--text-secondary)}.content-section{padding-block:3rem}.content-section>header{display:grid;grid-template-columns:.55fr 1.45fr;align-items:end;margin-bottom:1.5rem}.content-section h2{font-size:clamp(1.8rem,3vw,3rem);line-height:1.05;margin:.3rem 0}.how ol,.format-explain,.help-cards,.premium-columns{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;list-style:none;padding:0}.how li,.format-explain article,.help-cards article,.premium-columns section{background:var(--surface);padding:1.4rem;border:1px solid var(--border);border-radius:var(--radius)}.how li>b{color:var(--brand-primary)}.guide-list,.faq-list{display:grid;gap:.6rem}.guide-list a,.faq-list article{background:var(--surface);border-bottom:1px solid var(--border);padding:1rem}.guide-list a,.faq-list button{display:flex;justify-content:space-between;width:100%;background:none;color:inherit;text-align:left}.faq-list p{color:var(--text-secondary);max-width:70ch}.text-link{display:inline-block;margin-top:1rem;color:var(--brand-primary);font-weight:800}.source-profile{display:grid;grid-template-columns:100px 1.3fr 1fr;gap:1.5rem;align-items:center;background:var(--surface);padding:2rem;border:1px solid var(--border)}.source-icon{display:grid;place-items:center;aspect-ratio:1;background:var(--brand-secondary);color:#fff;font-size:2rem;border-radius:var(--radius)}.source-profile dl,.portal-result dl{display:grid;grid-template-columns:1fr 1fr;font-size:.8rem}.source-profile dt,.portal-result dt{color:var(--text-secondary)}
.inner-page{max-width:1120px;margin:auto;padding:5rem 24px;min-height:70vh}.inner-page h1{font-size:clamp(2.4rem,5vw,4.7rem);line-height:1;letter-spacing:-.045em}.inner-page h2{margin-top:2rem}.inner-page p{max-width:68ch;color:var(--text-secondary)}.lead{font-size:1.2rem}.inner-grid,.inner-utility,.inner-portal,.inner-dashboard{display:grid;grid-template-columns:230px 1fr;gap:3rem}.inner-grid aside nav,.inner-utility aside,.inner-portal aside,.inner-dashboard aside{display:flex;flex-direction:column;gap:1rem}.inner-story,.inner-editorial,.inner-minimal,.inner-phone,.inner-premium{max-width:780px;margin:auto}.inner-story section{display:grid;grid-template-columns:70px 1fr;border-top:1px solid var(--border);padding:1.5rem 0}.inner-story section>b{font-size:2rem;color:var(--brand-primary)}.inner-friendly>header{text-align:center;max-width:680px;margin:auto}.notice,.terminal-block{background:var(--brand-secondary);color:#fff;padding:1.2rem;border-radius:var(--radius)}.dropcap p:first-child:first-letter{float:left;font-size:4rem;line-height:.8;color:var(--brand-primary);margin-right:.5rem}blockquote{font-size:1.5rem;border-left:4px solid var(--brand-primary);padding-left:1rem}.inner-workflow ol{list-style:none;padding:0}.inner-workflow li{display:grid;grid-template-columns:70px 1fr;border-bottom:1px solid var(--border);padding:1rem}.inner-workflow li>b{font-size:2rem;color:var(--brand-primary)}details{background:var(--surface);padding:1rem;border-bottom:1px solid var(--border)}summary{font-weight:800;cursor:pointer}
.footer{max-width:1240px;margin:5rem auto 0;padding:3rem max(4vw,24px);display:grid;gap:2rem;background:var(--surface)}.footer a{display:block;margin:.45rem 0;color:var(--text-secondary)}.footer p{color:var(--text-secondary)}.footer.technical,.footer.dashboard,.footer.portal{grid-template-columns:1.2fr repeat(3,1fr)}.footer.compact,.footer.minimal,.footer.editorial,.footer.premium{grid-template-columns:1fr auto;align-items:end}.footer.friendly,.footer.utility,.footer.workflow{grid-template-columns:repeat(3,1fr)}.footer.command{background:var(--brand-secondary);color:#fff}.footer.command div{display:flex;gap:1rem;flex-wrap:wrap}.footer.phone{max-width:560px}.footer.phone .big-link{background:var(--brand-primary);color:#fff;text-align:center}
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@media(max-width:760px){.app-device-grid .device-card:last-child{grid-column:auto}}
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