:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#142341;background:#fff;font-synthesis:none}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button{cursor:pointer}.container{max-width:1150px;margin:auto;padding:0 24px}.site-header{border-bottom:1px solid #edf1f8;background:#fff}.nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}.logo{font-size:23px;font-weight:850;letter-spacing:-1px;white-space:nowrap}.logo span:last-child{color:#2761e8}.logo-mark{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:11px;background:#2761e8;color:#fff;margin-right:7px;font-size:22px}.nav nav{display:flex;gap:32px;color:#596780;font-size:14px;font-weight:600}.nav-cta,.primary{background:#285fe5;color:#fff;padding:13px 20px;border-radius:10px;font-weight:700;border:0;box-shadow:0 8px 18px #285fe524}.nav-cta span{margin-left:10px}.hero{text-align:center;padding:105px 0 96px;background:radial-gradient(ellipse at top,#eaf1ff 0%,#fff 64%)}.eyebrow{color:#2761e8;letter-spacing:2px;font-size:11px;font-weight:800}.hero h1{font-size:clamp(40px,6vw,70px);letter-spacing:-3px;line-height:1.12;margin:24px 0}.hero h1 em{font-style:normal;color:#2761e8}.hero p,.tool-heading p{color:#64718a;line-height:1.8;max-width:610px;margin:0 auto 30px}.searchbox{max-width:550px;margin:36px auto 0;text-align:left}.searchbox label{display:block;font-size:12px;font-weight:700;color:#6d7a92;margin-bottom:9px}.searchbox input{width:100%;padding:19px 22px;border:1px solid #dce4f2;border-radius:13px;box-shadow:0 8px 32px #122d6010;outline-color:#2761e8}.section{padding:38px 0 80px}.section-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:27px}.section h2{font-size:35px;letter-spacing:-1.2px;margin:9px 0}.count{font-size:13px;color:#77839b}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.tool-card{border:1px solid #e8edf6;border-radius:16px;padding:28px;min-height:230px;box-shadow:0 4px 18px #20335d08;transition:transform .15s,border-color .15s}.tool-card:hover{transform:translateY(-3px);border-color:#a9bff7}.tool-card[hidden]{display:none}.card-icon{display:grid;place-items:center;width:48px;height:48px;border-radius:12px;background:#edf3ff;color:#2761e8;font-size:27px}.tool-card h3{font-size:18px;margin:23px 0 7px}.tool-card p{font-size:13px;line-height:1.6;color:#69768c;min-height:42px}.card-link{color:#2761e8;font-size:13px;font-weight:750}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding:35px;margin-bottom:100px;background:#f6f9ff;border:1px solid #e9effb;border-radius:18px}.features p{color:#6b7890;font-size:13px;line-height:1.7}.footer{border-top:1px solid #edf1f8;background:#fbfcff;padding:46px 0 22px}.footer-inner{display:flex;justify-content:space-between;gap:30px}.footer-inner p,.copyright{color:#7a879c;font-size:13px}.footer nav{display:flex;flex-wrap:wrap;gap:25px;font-size:13px;color:#64718a}.copyright{margin-top:36px}.crumb{padding:35px 0;color:#7b88a0;font-size:13px}.crumb a{color:#2761e8}.tool-heading{text-align:center;padding:35px 0 30px}.tool-heading h1{font-size:clamp(32px,5vw,49px);letter-spacing:-2px;margin:12px 0}.workspace{max-width:760px;margin:0 auto 65px;padding:35px;border:1px solid #e2eaf7;border-radius:20px;box-shadow:0 16px 45px #1c3b7210}.dropzone{border:2px dashed #b9cdf4;border-radius:14px;background:#f7faff;padding:36px;display:flex;align-items:center;flex-direction:column;gap:10px;text-align:center;cursor:pointer}.dropzone strong{font-size:18px}.dropzone span:not(.upload-icon){color:#7b87a0;font-size:12px}.upload-icon{font-size:34px;color:#2761e8}.dropzone input{max-width:100%;font-size:12px;margin-top:10px}.controls{display:flex;flex-wrap:wrap;gap:18px;margin:24px 0}.controls label{flex:1;min-width:180px;font-size:13px;font-weight:700;color:#4c5d7b}.controls input:not([type=checkbox]):not([type=range]),.controls select{width:100%;display:block;margin-top:9px;padding:12px;border:1px solid #dce4f2;border-radius:9px;background:white}.controls input[type=range]{display:block;width:100%;margin-top:14px}.controls label.check{display:flex;align-items:center;gap:9px}.primary{display:block;width:100%;margin-top:18px;padding:16px}.primary:disabled{opacity:.6;cursor:wait}.status{font-size:13px;color:#5d6f8b;line-height:1.6}.result{border:1px solid #dbe8fb;border-radius:12px;padding:20px;margin-top:15px;background:#f9fbff}.result a{display:inline-block;background:#153f9c;color:#fff;padding:12px 16px;border-radius:8px;font-weight:700}.result img{display:block;max-width:100%;max-height:260px;margin:0 auto 15px;object-fit:contain}.qr-preview{display:grid;place-items:center;margin:18px auto}.qr-preview canvas{max-width:100%}.article{max-width:760px;margin:0 auto 110px;line-height:1.85;color:#52627d}.article h2{color:#142341;margin-top:32px}.article.info{min-height:48vh;padding-top:70px}.related{display:flex;gap:10px;flex-wrap:wrap}.related a{padding:9px 12px;background:#eef4ff;color:#2253bc;border-radius:8px;font-size:13px}.empty{text-align:center;color:#69768c}@media(max-width:750px){.nav{height:70px}.nav nav{display:none}.nav-cta{font-size:12px;padding:10px}.hero{padding:72px 0}.hero h1{letter-spacing:-1.8px}.cards,.features{grid-template-columns:1fr}.section{padding-bottom:45px}.features{margin-bottom:50px}.workspace{padding:18px}.footer-inner{flex-direction:column}.tool-card{min-height:190px}}
/* Reference-inspired homepage layout: CSS only, no image requests */
body:has(.hero-v2){background:#f8fafc}
body:has(.hero-v2) .site-header{box-shadow:0 2px 12px #20375b0d}
body:has(.hero-v2) main.container{max-width:none;padding:0}
body:has(.hero-v2) .hero-v2{position:relative;overflow:hidden;padding:48px 24px 43px;background:linear-gradient(116deg,#eaf9ff 0%,#eef4ff 52%,#f0f7ff 100%);min-height:330px}
.hero-v2 .hero-inner{position:relative;z-index:1;max-width:900px;margin:auto}
.hero-v2 .hero-pill{display:inline-block;padding:8px 16px;border:1px solid #e0eef7;background:#ffffffc9;border-radius:30px;color:#37455c;font-size:12px;font-weight:800;box-shadow:0 3px 12px #5686b60e}
.hero-v2 h1{font-size:clamp(31px,4vw,43px);letter-spacing:-1.7px;line-height:1.22;margin:14px 0 8px;font-weight:850}
.hero-v2 h1 em{color:#249bd5}
.hero-v2 p{font-size:15px;max-width:550px;margin:0 auto;color:#5b6b80;line-height:1.6}
.hero-v2 .searchbox{max-width:530px;margin:24px auto 0;position:relative}
.hero-v2 .searchbox input{border:2px solid #c5e5f3;border-radius:40px;background:#fff;padding:15px 20px 15px 44px;font-size:13px;box-shadow:0 2px 5px #2b80ad08}
.search-icon{position:absolute;left:17px;top:6px;font-size:29px;color:#8094ab;pointer-events:none}
.sr-only{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
.hero-benefits{display:flex;gap:13px;justify-content:center;flex-wrap:wrap;margin-top:20px}
.hero-benefits span{font-size:11px;padding:7px 14px;background:#ffffffc9;border-radius:24px;color:#52657a;box-shadow:0 2px 10px #28415c0a}
.orb{position:absolute;border-radius:50%;background:#76d1f433;pointer-events:none}.orb-one{width:75px;height:75px;top:22px;left:22%}.orb-two{width:44px;height:44px;top:160px;left:12%}.orb-three{width:115px;height:115px;top:70px;right:18%;background:#c8e2f95c}
.hub-layout{max-width:1450px;margin:0 auto;padding:23px 28px 30px;display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:25px}
.category-bar{display:flex;gap:10px;overflow-x:auto;white-space:nowrap;padding:9px 0 20px;border-bottom:1px solid #e2e7ed;scrollbar-width:thin}
.category{border:1px solid #e3e9f1;background:#fff;color:#657185;border-radius:25px;padding:10px 18px;font-size:12px;font-weight:650;box-shadow:0 1px 4px #0f274308;cursor:pointer}
.category.active,.category:hover{background:linear-gradient(115deg,#0da9ce,#2875e9);border-color:transparent;color:white}
.hub-layout .section{padding:21px 0 35px}
.hub-layout .section-head{margin-bottom:19px}
.hub-layout .section-title{border-left:4px solid #18bfd1;padding-left:11px;font-size:21px;letter-spacing:-.5px;margin:0}
.hub-layout .count{font-size:10px;font-weight:800;color:#536477;background:#eaf6fc;border-radius:30px;padding:6px 10px}
.hub-layout .cards{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.hub-layout .tool-card{display:flex;align-items:flex-start;gap:13px;position:relative;min-height:98px;padding:15px 13px;border:1px solid #edf0f4;border-radius:10px;background:#fff;box-shadow:0 2px 9px #183e6508}
.hub-layout .tool-card[hidden]{display:none}
.hub-layout .card-icon{flex:none;width:38px;height:38px;border-radius:7px;background:linear-gradient(140deg,#13b8d6,#2865e6);color:white;font-size:23px;box-shadow:0 3px 8px #1588db25}
.hub-layout .card-copy{min-width:0}
.hub-layout .tool-card h3{font-size:13px;margin:2px 0 6px;letter-spacing:-.15px}
.hub-layout .tool-card p{font-size:11px;line-height:1.45;margin:0;min-height:0;color:#7c8796}
.hub-layout .card-arrow{margin-left:auto;font-size:13px;color:#6c93cb}
.hub-sidebar{padding-top:0}
.sidebar-highlight{background:linear-gradient(135deg,#079ec4,#2859d3);color:#fff;border-radius:12px;padding:22px 19px;box-shadow:0 7px 17px #2167c12a}
.sidebar-highlight .sidebar-symbol{font-size:21px}.sidebar-highlight h3{font-size:17px;margin:8px 0}.sidebar-highlight p{font-size:12px;line-height:1.6;color:#e7f6ff}.sidebar-highlight a{display:block;background:#fff;border-radius:7px;color:#1668ac;text-align:center;font-weight:800;font-size:12px;padding:12px 8px;margin-top:20px}
.sidebar-panel{background:#fff;border:1px solid #e8edf4;border-radius:12px;margin-top:18px;padding:19px}
.sidebar-panel h3{font-size:15px;margin:0 0 12px;color:#138eaa}
.sidebar-panel a{display:block;border-top:1px solid #eff2f6;padding:11px 0;font-size:12px;color:#596a84}
body:has(.hero-v2) .features{max-width:1394px;margin:5px auto 70px}
@media(max-width:1000px){.hub-layout{grid-template-columns:1fr}.hub-sidebar{display:grid;grid-template-columns:1fr 1fr;gap:16px}.sidebar-panel{margin-top:0}}
@media(max-width:690px){.hero-v2 h1{font-size:31px;letter-spacing:-1px}.hub-layout{padding:16px}.hub-layout .cards{grid-template-columns:1fr}.hub-sidebar{grid-template-columns:1fr}.hero-v2 .searchbox input{font-size:12px}.hero-v2{min-height:0}.hero-benefits{gap:6px}.hero-benefits span{padding:6px 9px}.hub-layout .tool-card{min-height:85px}body:has(.hero-v2) .features{margin:0 16px 40px}}

/* Visible rainbow color picker for QR foreground/background */
.workspace input[type="color"]{appearance:none;-webkit-appearance:none;display:block;width:100%;height:43px;margin-top:9px;padding:5px;border:1px solid #dce4f2;border-radius:9px;cursor:pointer;background:linear-gradient(90deg,#ff4d4d 0%,#ffad33 17%,#ffe55b 33%,#4bd978 50%,#38b8ff 67%,#7758e8 83%,#e35bd7 100%)!important}
.workspace input[type="color"]::-webkit-color-swatch-wrapper{padding:0}
.workspace input[type="color"]::-webkit-color-swatch{border:2px solid #fff;border-radius:5px;box-shadow:0 1px 4px #17213b66}
.workspace input[type="color"]::-moz-color-swatch{border:2px solid #fff;border-radius:5px;box-shadow:0 1px 4px #17213b66}
.workspace input[type="color"]:focus-visible{outline:3px solid #73b9ff;outline-offset:3px}

.dropzone.dragging{border-color:#2382e6;background:#e9f4ff;box-shadow:0 0 0 4px #2880e51a}
.tool-card:focus-visible,.category:focus-visible,.primary:focus-visible{outline:3px solid #5ba8ff;outline-offset:3px}

/* Premium tool page: two-column dashboard */
body:has(.tool-layout){background:#f8fbff}
body:has(.tool-layout) .tool-heading{background:radial-gradient(ellipse at top,#e9f4ff,#f8fbff 72%);padding:43px 20px 37px;border-radius:0 0 24px 24px}
body:has(.tool-layout) .tool-heading h1{font-size:clamp(34px,4vw,49px)}
.tool-layout{max-width:1100px;margin:20px auto 75px;display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:22px;align-items:start}
.tool-layout .workspace{width:100%;max-width:none;margin:0;padding:30px;border:1px solid #e3eaf6;background:#fff;box-shadow:0 12px 36px #1741750a;border-radius:16px}
.tool-layout .tool-aside{display:grid;gap:16px}
.aside-card{border:1px solid #e3eaf6;border-radius:14px;background:#fff;padding:22px;box-shadow:0 5px 20px #17417508}
.aside-card:first-child{background:linear-gradient(125deg,#109fc9,#2861d8);color:white;border:0}
.aside-card h3{margin:0 0 11px;font-size:16px}
.aside-card p{font-size:13px;line-height:1.7;margin:0;color:inherit}
.aside-card a{display:block;padding:11px 0;border-top:1px solid #e9edf5;font-size:12px;color:#315d9e}
.tool-layout .workspace .primary{background:linear-gradient(110deg,#0ca9cb,#2d61e1);box-shadow:0 7px 18px #2361d32b}
.tool-layout .workspace .dropzone{background:#f5faff;border-color:#a9d6ed}
.tool-layout .workspace .controls{margin:22px 0;gap:14px}
.tool-layout .workspace .controls label{min-width:145px}
.tool-layout .workspace textarea{display:block;width:100%;padding:16px;border:1px solid #dce4f2;border-radius:10px;resize:vertical;line-height:1.6;color:#26364f;background:#fbfdff}
.field-label{display:block;font-size:13px;font-weight:750;margin-bottom:10px;color:#4c5d7b}
.choice-buttons{display:flex;flex-wrap:wrap;gap:9px;margin:17px 0}
.choice-buttons button{border:1px solid #d2e3f5;border-radius:8px;padding:10px 14px;background:#f2f8ff;color:#2056a5;font-size:12px;font-weight:700}
.choice-buttons button:hover{background:#dceeff}
.tool-layout .result p{margin:7px 0;overflow-wrap:anywhere;font-size:15px}
.hint{font-size:12px;color:#70819b;line-height:1.6}
.typing-sample{padding:18px;border:1px solid #dbe8f8;background:#f5faff;border-radius:10px;font-size:17px;line-height:1.8}
.reaction-pad{display:grid;place-items:center;min-height:210px;padding:25px;text-align:center;background:#e9f1fc;border:2px solid #bfd5f1;border-radius:12px;font-size:19px;font-weight:750;cursor:pointer}
.reaction-pad.waiting{background:#d94e57;color:#fff}
.reaction-pad.ready{background:#19b971;color:#fff}
body:has(.tool-layout) .article{background:#fff;padding:25px 30px;border:1px solid #e3eaf6;border-radius:16px;max-width:1100px}
@media(max-width:850px){.tool-layout{grid-template-columns:1fr;margin:10px 0 45px}.tool-layout .tool-aside{grid-template-columns:1fr 1fr}.tool-layout .workspace{padding:22px}}
@media(max-width:550px){.tool-layout .tool-aside{grid-template-columns:1fr}.tool-layout .workspace{padding:17px}body:has(.tool-layout) .article{padding:20px}}

/* Keyboard navigation and motion accessibility */
.skip-link{position:absolute;left:12px;top:-80px;z-index:10000;padding:12px 16px;background:#fff;color:#164fb0;border:2px solid #164fb0;border-radius:8px}
.skip-link:focus{top:12px}
:where(a,button,input,select,textarea,[tabindex]):focus-visible{outline:3px solid #1b70e0;outline-offset:3px}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}}

/* Keep intrinsic content inside its grid track on narrow screens. */
.hub-main,.hub-sidebar,.tool-layout>*,.features>*{min-width:0}
@media(max-width:1000px){.hub-layout{grid-template-columns:minmax(0,1fr)}}
@media(max-width:850px){.tool-layout{grid-template-columns:minmax(0,1fr)}}
@media(min-width:691px) and (max-width:1100px){.hub-layout .cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:690px){
  .category{flex-shrink:0;min-height:44px}
  .category-bar{max-width:100%}
  .hub-sidebar{grid-template-columns:minmax(0,1fr)}
  .hub-layout .tool-card h3,.sidebar-highlight a,.aside-card a{overflow-wrap:anywhere}
  .section-head{gap:12px}
  .hub-layout .count{flex-shrink:0}
}
@media(max-width:550px){
  .container{padding-left:16px;padding-right:16px}
  .nav{gap:10px}
  .logo{font-size:20px}
  .logo-mark{width:32px;height:32px;margin-right:3px}
  .nav-cta{min-height:44px;display:flex;align-items:center;padding:10px;font-size:12px}
  .nav-cta span{margin-left:5px}
  .tool-layout .tool-aside{grid-template-columns:minmax(0,1fr)}
  .tool-layout .workspace .controls label{min-width:0;flex:1 1 100%}
  .controls input,.controls select,.workspace textarea{min-width:0;max-width:100%;font-size:16px}
  .tool-layout .workspace textarea{font:inherit;font-size:16px}
  .dropzone{padding:24px 12px;min-width:0}
  .dropzone input{width:100%;min-width:0}
  .tool-heading h1,.article h1,.article h2,.crumb,.result{overflow-wrap:anywhere}
  .tool-layout .workspace .choice-buttons button{min-height:44px}
  .features{padding:24px}
  .footer nav{gap:12px 20px}
  .footer nav a{display:inline-flex;align-items:center;min-height:44px}
}