:root{
  --primary:#4285F4;
  --secondary:#0D2693;
  --tertiary:#F80508;
  --accent:#FDF201;
  --bg:#FFFFFF;
  --surface:#FFFFFF;
  --soft:#F5F8FF;
  --soft-alt:#EEF4FF;
  --soft-deep:#E4EDFF;
  --text:#14213D;
  --muted:#5B667A;
  --heading:#081A4A;
  --border:#DDE5F3;
  --border-strong:#AFC2EA;
  --success:#14804A;
  --warning:#A66A00;
  --danger:#F80508;
  --keyboard:#EAF1FF;
  --key:#FFFFFF;
  --key-active:#FDF201;
  --key-tested:#D7E6FF;
  --key-text:#081A4A;
  --screen:#06133F;
  --screen-text:#F7FAFF;
  --footer:#07143D;
  --footer-panel:#0A1B52;
  --footer-text:#F7FAFF;
  --footer-muted:#DCE6FF;
  --transparent:transparent;
  --shadow:0 22px 60px rgba(8,26,74,.14);
  --shadow-soft:0 14px 38px rgba(8,26,74,.09);
  --shadow-nav:0 14px 34px rgba(8,26,74,.12);
  --shadow-key:0 7px 0 rgba(8,26,74,.16);
  --ring:0 0 0 4px rgba(66,133,244,.16);
  --radius:24px;
  --radius-sm:14px;
  --radius-lg:34px;
  --pill:50px;
  --container:1180px;
  --brand-icon-size:50px;
  --brand-icon-radius:18px;
  --brand-font-size:20px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;text-rendering:optimizeLegibility}
body{margin:0;font-family:Poppins,Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;font-size:16px;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;height:auto}
button,input,textarea{font:inherit}
button{touch-action:manipulation}
.container{width:min(var(--container),92%);margin-inline:auto}
.section-pad{padding:88px 0}.soft{background:var(--soft)}.center{text-align:center;margin-inline:auto}
.skip-link{position:absolute;left:-999px;top:8px;background:var(--secondary);color:var(--footer-text);padding:10px 14px;border-radius:var(--radius-sm);z-index:999}.skip-link:focus{left:8px}
.site-header{position:sticky;top:0;z-index:80;background:var(--surface);border-bottom:1px solid var(--border);box-shadow:var(--shadow-soft)}
.header-inner{min-height:78px;display:flex;align-items:center;gap:18px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:900;color:var(--heading);font-size:20px;letter-spacing:-.02em;white-space:nowrap}.brand-icon{width:44px;height:44px;border-radius:16px;background:linear-gradient(135deg,var(--primary),var(--secondary));color:var(--footer-text);display:grid;place-items:center;box-shadow:var(--shadow-soft);font-size:22px;flex:0 0 auto}
.nav{margin-left:auto;display:flex;align-items:center;gap:4px;background:var(--soft);border:1px solid var(--border);border-radius:var(--pill);padding:7px;box-shadow:var(--shadow-nav)}
.nav a{padding:9px 13px;border-radius:var(--pill);color:var(--muted);font-weight:800;font-size:13px;line-height:1.2;transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease}.nav a:hover,.nav a.active{background:var(--surface);color:var(--secondary);box-shadow:var(--shadow-soft);transform:translateY(-1px)}
.menu-toggle{display:none;margin-left:auto;background:var(--soft);border:1px solid var(--border);border-radius:16px;width:46px;height:46px;color:var(--heading);cursor:pointer;box-shadow:var(--shadow-soft)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid var(--secondary);background:var(--secondary);color:var(--footer-text);border-radius:var(--pill);padding:13px 22px;font-weight:900;line-height:1.2;cursor:pointer;box-shadow:var(--shadow-soft);transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;white-space:nowrap}.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.btn:focus-visible{outline:0;box-shadow:var(--ring),var(--shadow)}.btn[data-icon]::before{content:attr(data-icon);display:inline-grid;place-items:center;font-weight:900;line-height:1}.btn-light{background:var(--surface);color:var(--secondary);border-color:var(--border)}.btn-accent{background:var(--accent);color:var(--heading);border-color:var(--accent)}.btn-small{padding:10px 16px;font-size:14px}
.hero{padding:82px 0 40px;background:linear-gradient(180deg,var(--soft),var(--bg))}.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:40px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--soft-alt);color:var(--secondary);border:1px solid var(--border);border-radius:var(--pill);padding:7px 12px;font-weight:900;font-size:13px;margin-bottom:14px}.eyebrow::before{content:"";width:8px;height:8px;border-radius:var(--pill);background:var(--accent);box-shadow:var(--ring)}
h1,h2,h3{color:var(--heading);line-height:1.12;margin:0 0 16px;letter-spacing:-.035em;font-weight:900}h1{font-size:clamp(40px,7vw,68px)}h2{font-size:clamp(31px,5vw,52px)}h3{font-size:clamp(21px,3vw,28px)}p{margin:0 0 16px;color:var(--muted)}.hero p{font-size:18px;max-width:650px}.highlight{color:var(--primary)}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0}.trust-mini{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.trust-mini span,.badge{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--border);background:var(--surface);border-radius:var(--pill);padding:8px 12px;color:var(--muted);font-weight:800;font-size:14px}.trust-mini span::first-letter{color:var(--success)}
.hero-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow)}.visual-keyboard{background:var(--keyboard);border:1px solid var(--border);border-radius:var(--radius);padding:18px;display:grid;gap:10px}.visual-row{display:flex;gap:8px}.visual-row span{height:34px;flex:1;border-radius:10px;background:var(--key);box-shadow:var(--shadow-key)}.visual-row span:nth-child(2n){background:var(--key-tested)}.visual-row span:nth-child(5){background:var(--key-active)}.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:18px}.info-card{border:1px solid var(--border);border-radius:18px;padding:16px;background:var(--soft)}.info-card strong{display:block;color:var(--heading)}
.trust-bar{padding:26px 0;background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.trust-item{display:flex;align-items:center;gap:12px;border:1px solid var(--border);border-radius:20px;padding:16px;background:var(--soft);box-shadow:var(--shadow-soft)}.trust-item b{display:block;color:var(--heading)}
.section-head{max-width:780px;margin-bottom:34px}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-soft)}.card h3{font-size:23px}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.feature-card{position:relative;overflow:hidden;min-height:190px}.icon{width:48px;height:48px;border-radius:16px;display:grid;place-items:center;background:var(--soft-alt);color:var(--secondary);font-size:24px;margin-bottom:16px;box-shadow:var(--shadow-soft)}
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.step{position:relative}.step:before{counter-increment:step;content:counter(step);width:36px;height:36px;border-radius:var(--pill);background:var(--accent);color:var(--heading);display:grid;place-items:center;font-weight:900;margin-bottom:12px;box-shadow:var(--shadow-soft)}.info-list{display:grid;gap:14px;padding:0;margin:0}.info-list li{list-style:none;border:1px solid var(--border);background:var(--surface);border-radius:18px;padding:16px;color:var(--muted);box-shadow:var(--shadow-soft)}.info-list b{color:var(--heading)}
.table-wrap{overflow:auto;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-soft);background:var(--surface)}table{width:100%;border-collapse:collapse;min-width:720px}th,td{text-align:left;padding:16px;border-bottom:1px solid var(--border)}th{background:var(--soft-alt);color:var(--heading);font-weight:900}td{color:var(--muted)}.benefit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.posts-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.post-card{display:flex;flex-direction:column;min-height:100%;overflow:hidden}.post-card h3,.post-card h2{font-size:22px}.post-card .btn{margin-top:auto;width:max-content}
.post-thumb,.post-cover,.media-image{aspect-ratio:16/9;border-radius:20px;background:var(--soft-alt);border:1px solid var(--border);box-shadow:var(--shadow-soft);margin-bottom:18px;overflow:hidden}.post-thumb img,.post-cover img,.media-image img{width:100%;height:100%;object-fit:cover}.post-cover{border-radius:var(--radius);margin-bottom:26px}.media-image{margin:28px 0}.image-caption{display:block;color:var(--muted);font-size:13px;font-weight:700;margin-top:-12px;margin-bottom:22px;text-align:center}
.faq-layout{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start}.faq-category{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-soft)}.faq-category h3{display:flex;align-items:center;gap:10px;font-size:24px}.faq-item{border-top:1px solid var(--border)}.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;gap:12px;text-align:left;background:var(--surface);border:0;padding:18px 0;color:var(--heading);font-weight:900;cursor:pointer}.faq-question span{width:30px;height:30px;border-radius:var(--pill);display:grid;place-items:center;background:var(--soft-alt);color:var(--secondary);flex:0 0 auto}.faq-answer{max-height:0;overflow:hidden;transition:max-height .28s ease}.faq-answer p{padding:0 0 18px}.faq-item.open .faq-answer{max-height:260px}.faq-item.open .faq-question span{background:var(--accent);color:var(--heading)}
.final-cta{background:linear-gradient(135deg,var(--secondary),var(--screen));color:var(--footer-text);border-radius:var(--radius-lg);padding:44px;display:grid;grid-template-columns:1fr auto;align-items:center;gap:24px;box-shadow:var(--shadow)}.final-cta h2,.final-cta p{color:var(--footer-text)}.final-cta .btn{background:var(--accent);border-color:var(--accent);color:var(--heading)}
.site-footer{background:var(--footer);color:var(--footer-text);padding:48px 0 20px}.footer-grid{display:grid;grid-template-columns:1.45fr .8fr .8fr;gap:28px;align-items:start}.footer-brand{background:var(--footer-panel);border:1px solid var(--border-strong);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-soft)}.footer-logo,.site-footer h3,.site-footer a{color:var(--footer-text)}.site-footer h3{font-size:20px;letter-spacing:-.02em;margin-bottom:14px}.site-footer p{color:var(--footer-muted);font-size:15px}.footer-links{display:grid;gap:8px}.footer-links a{display:flex;align-items:center;gap:9px;color:var(--footer-muted);font-weight:800;font-size:15px;padding:8px 10px;border-radius:var(--radius-sm);transition:background .18s ease,color .18s ease,transform .18s ease}.footer-links a::before{content:"›";color:var(--accent);font-weight:900}.footer-links a:hover{background:var(--footer-panel);color:var(--footer-text);transform:translateX(3px)}.footer-bottom{border-top:1px solid var(--border-strong);margin-top:30px;padding-top:18px;text-align:center}.footer-bottom p{margin:0;color:var(--footer-muted)}
.scroll-top{position:fixed;right:18px;bottom:18px;width:52px;height:52px;border-radius:18px;border:1px solid var(--border);background:linear-gradient(135deg,var(--primary),var(--secondary));color:var(--footer-text);box-shadow:var(--shadow);display:none;cursor:pointer;z-index:70;font-size:20px;font-weight:900}.scroll-top.show{display:grid;place-items:center}.scroll-top:hover{transform:translateY(-3px)}
.kb-shell{background:var(--keyboard);border:1px solid var(--border);border-radius:var(--radius-lg);padding:18px;box-shadow:var(--shadow);overflow:hidden}.kb-top{display:flex;align-items:end;gap:8px;margin-bottom:0;padding-left:10px}.kb-tab{border:1px solid var(--border);border-bottom:0;background:var(--soft);color:var(--muted);padding:12px 20px;border-radius:18px 18px 0 0;font-weight:900;cursor:pointer}.kb-tab.active{background:var(--surface);color:var(--secondary)}.kb-screen{display:flex;justify-content:space-between;gap:18px;align-items:center;background:var(--screen);color:var(--screen-text);border-radius:var(--radius);padding:24px;margin-bottom:18px;box-shadow:var(--shadow-soft)}.kb-screen strong{display:block;color:var(--screen-text);font-size:32px;line-height:1.1;word-break:break-word}.screen-label{color:var(--screen-text);font-weight:900;font-size:13px;text-transform:uppercase;letter-spacing:.08em}.screen-stats{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}.screen-stats span{border:1px solid var(--border-strong);border-radius:var(--pill);padding:8px 12px;color:var(--screen-text);font-weight:900}.keyboard-area{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:16px;align-items:start}.keyboard-main{display:grid;gap:9px;min-width:820px}.kb-row{display:flex;gap:8px}.key{min-width:46px;height:48px;flex:1;border:1px solid var(--border-strong);background:var(--key);color:var(--key-text);border-radius:12px;box-shadow:var(--shadow-key);display:grid;place-items:center;font-size:13px;font-weight:900;cursor:pointer;transition:transform .08s ease,background .12s ease,box-shadow .12s ease,border-color .12s ease}.key span{pointer-events:none}.key.wide{flex:1.35}.key.wide2{flex:1.8}.key.wide3{flex:2.35}.key.space{flex:6}.key.media-key{max-width:72px;height:42px;background:var(--soft)}.key.active{background:var(--key-active);transform:translateY(5px);box-shadow:none;border-color:var(--accent)}.key.tested{background:var(--key-tested);border-color:var(--primary)}.numpad{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;min-width:210px}.pad-zero{grid-column:span 2}.tester-controls{margin-top:18px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow-soft)}.tester-controls label{display:block;color:var(--heading);font-weight:900;margin-bottom:8px}.tester-controls textarea{width:100%;border:1px solid var(--border);border-radius:18px;padding:14px;resize:vertical;color:var(--text);background:var(--bg);min-height:120px}.tester-controls textarea:focus{outline:0;box-shadow:var(--ring);border-color:var(--primary)}.control-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:14px}
.page-hero{padding:64px 0;background:linear-gradient(180deg,var(--soft),var(--bg))}.page-hero .container{max-width:900px;text-align:center}.content-section{padding:70px 0}.prose{max-width:900px;margin-inline:auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow-soft)}.prose h2{font-size:34px;margin-top:30px}.prose h3{font-size:25px;margin-top:24px}.prose ul{padding-left:22px;color:var(--muted)}.prose li{margin-bottom:8px}.prose a{color:var(--secondary);font-weight:900}.guide-tools{display:flex;gap:12px;flex-wrap:wrap;margin:22px 0}.guide-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px;align-items:start}.article{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-soft)}.article h1{font-size:clamp(34px,5vw,52px)}.breadcrumbs{display:flex;gap:8px;flex-wrap:wrap;color:var(--muted);font-weight:800;margin-bottom:18px;font-size:14px}.breadcrumbs a{color:var(--secondary)}.sidebar{position:sticky;top:100px;display:grid;gap:18px}.side-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-soft)}.related-list{display:grid;gap:10px}.related-list a{color:var(--secondary);font-weight:900}.download-box{display:grid;gap:18px;grid-template-columns:1fr 1fr;align-items:start}.notice{border-left:4px solid var(--primary);background:var(--soft);padding:16px;border-radius:var(--radius-sm);color:var(--muted)}.reveal{opacity:1;transform:none}.reveal.visible{opacity:1;transform:none}
.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}.search-input{flex:1;min-width:240px;border:1px solid var(--border);border-radius:var(--pill);padding:13px 18px;background:var(--surface);color:var(--text)}.search-input:focus{outline:0;box-shadow:var(--ring);border-color:var(--primary)}
@media (max-width:1120px){.nav a{padding:9px 10px;font-size:12px}.keyboard-area{overflow:auto}.numpad{min-width:210px}.keyboard-main{min-width:820px}.feature-grid,.posts-grid,.benefit-grid,.steps{grid-template-columns:repeat(2,1fr)}.hero-grid,.grid-2,.download-box{grid-template-columns:1fr}.hero-card{order:-1}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}
@media (max-width:900px){.menu-toggle{display:grid;place-items:center}.nav{position:absolute;left:4%;right:4%;top:78px;display:none;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px;box-shadow:var(--shadow);margin-left:0}.nav.open{display:flex}.nav a{width:100%;text-align:center;font-size:15px;padding:13px}.header-cta{display:none}.trust-grid,.faq-layout,.guide-layout,.final-cta{grid-template-columns:1fr}.sidebar{position:static}.kb-screen{display:grid}.screen-stats{justify-content:flex-start}.section-pad{padding:64px 0}}
@media (max-width:640px){.feature-grid,.posts-grid,.benefit-grid,.steps,.info-grid,.footer-grid{grid-template-columns:1fr}h1{font-size:38px}.hero{padding-top:54px}.final-cta{padding:28px}.article,.prose{padding:22px}.kb-shell{padding:10px}.keyboard-area{display:block;overflow:auto}.numpad{margin-top:12px}.kb-screen strong{font-size:25px}.btn{width:100%;white-space:normal}.hero-actions .btn,.control-row .btn,.guide-tools .btn{width:100%}.header-inner{min-height:72px}.brand{font-size:18px}.brand-icon{width:40px;height:40px}.nav{top:72px}.site-footer h3{font-size:19px}.footer-links a{font-size:15px}.scroll-top{width:48px;height:48px;right:14px;bottom:14px}}


/* Premium refinement patch */
.header-inner{min-height:76px;gap:14px}
.brand{gap:12px;min-width:max-content;font-size:var(--brand-font-size)}
.brand-name{white-space:nowrap;line-height:1.15}
.brand-icon{width:var(--brand-icon-size);height:var(--brand-icon-size);border-radius:var(--brand-icon-radius);font-size:24px;overflow:hidden}
.brand-logo-img{width:72%;height:72%;object-fit:contain;display:block}
.nav{flex:0 1 auto;gap:3px;padding:6px;max-width:100%}
.nav a{white-space:nowrap;padding:10px 14px;font-size:14px;line-height:1}
.header-cta{padding-inline:18px}
.footer-logo{align-items:center}.footer-brand p{margin-top:18px;margin-bottom:0}.site-footer .brand-icon{box-shadow:none}
.scroll-top{width:58px;height:58px;border-radius:var(--pill);border:1px solid var(--border-strong);align-items:center;justify-content:center;transition:transform .2s ease,box-shadow .2s ease,opacity .2s ease}.scroll-top span{display:grid;place-items:center;width:30px;height:30px;border-radius:var(--pill);background:var(--surface);color:var(--secondary);font-size:22px;line-height:1;font-weight:900}.scroll-top.show{display:flex}.scroll-top:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.article h2{font-size:30px;line-height:1.2;margin-top:34px;margin-bottom:14px;letter-spacing:-.025em}.article h3{font-size:24px;line-height:1.25;margin-top:24px;margin-bottom:10px;letter-spacing:-.02em}.article p,.article li{font-size:16px;line-height:1.8}.article .media-image{margin:30px 0 18px}
.kb-top{align-items:flex-end;gap:10px;padding:14px 10px 0;margin-bottom:0}.kb-tab{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:54px;padding:14px 22px 13px;border-radius:20px 20px 0 0;line-height:1;box-shadow:var(--shadow-soft)}.kb-tab .tab-logo{width:22px;height:22px;display:block;fill:currentColor;flex:0 0 auto}.kb-tab span{display:inline-block;white-space:nowrap}.kb-tab.active{box-shadow:none}
@media (max-width:1240px){.nav a{padding:10px 11px;font-size:13px}.header-cta{display:none}}
@media (max-width:980px){.brand{font-size:18px}.brand-icon{width:46px;height:46px}.nav a{white-space:nowrap;line-height:1.2}}
@media (max-width:640px){.article h2{font-size:28px}.article h3{font-size:22px}.kb-top{padding:10px 8px 0}.kb-tab{min-height:48px;padding:12px 16px 11px}.kb-tab .tab-logo{width:20px;height:20px}.scroll-top{width:50px;height:50px}.scroll-top span{width:26px;height:26px;font-size:19px}}