/* CurvedTextGen — mobile-first stylesheet. System fonts only, no frameworks. */
:root{
  --brand:#2e6bf0; --brand-dark:#1e4fc4; --ink:#1b2433; --muted:#5b6678;
  --bg:#ffffff; --soft:#f3f6fc; --line:#e2e8f2; --radius:12px;
  --max:1120px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;font-size:1.05rem}
img,canvas{max-width:100%;height:auto}
a{color:var(--brand)}
h1,h2,h3{line-height:1.25;margin:0 0 .6em;letter-spacing:-.01em}
h1{font-size:2rem}h2{font-size:1.55rem;margin-top:2.2em}h3{font-size:1.2rem;margin-top:1.6em}
p{margin:0 0 1em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 1.1rem}
main{display:block}

/* Header */
.site-header{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:50}
.header-in{display:flex;align-items:center;gap:1rem;max-width:var(--max);margin:0 auto;padding:.7rem 1.1rem}
.logo{display:flex;align-items:center;gap:.55rem;text-decoration:none;color:var(--ink);font-weight:800;font-size:1.25rem;letter-spacing:-.02em}
.logo svg{width:34px;height:34px;flex:none}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:.5rem .7rem;font-size:1.1rem;cursor:pointer;margin-left:auto}
.site-nav{display:flex;gap:.2rem;margin-left:auto;align-items:center}
.site-nav a{text-decoration:none;color:var(--ink);padding:.5rem .7rem;border-radius:8px;font-size:.98rem}
.site-nav a:hover{background:var(--soft)}
.site-nav a.active{color:var(--brand);font-weight:700}

/* Hero */
.hero{padding:2.2rem 0 1rem;text-align:center}
.hero p.sub{font-size:1.15rem;color:var(--muted);max-width:46rem;margin:0 auto 1.4rem}

/* Tool */
.tool-section{margin:0 0 2.5rem}
.tool{display:grid;gap:1.2rem;background:var(--soft);border:1px solid var(--line);border-radius:16px;padding:1.1rem}
.tool-main{min-width:0}
.tool-canvas{width:100%;height:auto;display:block;background:
  repeating-conic-gradient(#eef1f6 0% 25%, #fff 0% 50%) 0 0/24px 24px;
  border:1px solid var(--line);border-radius:var(--radius);touch-action:none;cursor:default}
.tool-canvas.drawing{cursor:crosshair}
.tool-downloads{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:.9rem}
.btn{appearance:none;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:10px;padding:.7rem 1.1rem;font-size:1rem;font-weight:600;cursor:pointer;min-height:48px}
.btn:hover{border-color:var(--brand)}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark)}
.btn-ghost{background:transparent}
.tool-note{font-size:.9rem;color:var(--muted);margin:.7rem 0 0}
.tool-hint{font-size:.92rem;background:#fff8e6;border:1px solid #f0d98c;border-radius:8px;padding:.6rem .8rem;margin:.8rem 0 0}
.tool-controls{display:grid;gap:.9rem;align-content:start}
.ctl{display:grid;gap:.35rem;font-weight:600;font-size:.95rem}
.ctl-label{font-weight:600;font-size:.95rem}
.ctl input[type=text],.ctl select{width:100%;padding:.7rem .8rem;border:1px solid var(--line);border-radius:10px;font-size:1rem;background:#fff;min-height:48px}
.ctl input[type=range]{width:100%;min-height:44px;accent-color:var(--brand)}
.ctl input[type=color]{width:64px;height:44px;border:1px solid var(--line);border-radius:8px;background:#fff;padding:2px;cursor:pointer}
.ctl input[type=file]{font-size:.9rem;font-weight:400}
.val{font-weight:400;color:var(--muted);font-size:.85rem;margin-left:.4rem}
.pills{display:flex;flex-wrap:wrap;gap:.5rem}
.pills button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:.55rem 1rem;font-size:.95rem;cursor:pointer;min-height:44px}
.pills button[aria-pressed=true]{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:700}
.colors{display:flex;gap:1rem;align-items:end;flex-wrap:wrap}
.colors label{display:grid;gap:.3rem;font-size:.9rem}

/* Content */
.prose{max-width:46rem}
.prose ul,.prose ol{margin:0 0 1em;padding-left:1.4em}
.prose li{margin-bottom:.4em}
.cards{display:grid;gap:1rem;grid-template-columns:1fr;margin:1.4rem 0}
.card{border:1px solid var(--line);border-radius:var(--radius);padding:1.1rem;background:#fff}
.card h3{margin-top:0;font-size:1.1rem}
.card p{margin:0 0 .6em;color:var(--muted);font-size:.97rem}
.card a{text-decoration:none;font-weight:700}
.card a:hover{text-decoration:underline}
.demo-grid{display:grid;gap:1rem;grid-template-columns:1fr 1fr;margin:1.4rem 0}
.demo-grid figure{margin:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.demo-grid img{display:block;width:100%}
.demo-grid figcaption{padding:.6rem .9rem;font-size:.88rem;color:var(--muted)}

/* Share */
.share{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;margin:1.6rem 0;padding:.9rem 1.1rem;background:var(--soft);border:1px solid var(--line);border-radius:var(--radius)}
.share-label{font-weight:700;font-size:.95rem;margin-right:.3rem}
.share a,.share button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:.45rem .95rem;font-size:.9rem;font-weight:600;color:var(--ink);text-decoration:none;cursor:pointer;min-height:40px}
.share a:hover,.share button:hover{border-color:var(--brand);color:var(--brand)}

/* FAQ */
.faq details{border:1px solid var(--line);border-radius:10px;margin-bottom:.6rem;background:#fff}
.faq summary{padding:.9rem 1.1rem;font-weight:700;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--brand);font-size:1.2rem}
.faq details[open] summary::after{content:"–"}
.faq .a{padding:0 1.1rem 1rem;color:var(--ink)}

/* Steps */
.steps{display:grid;gap:1rem;grid-template-columns:1fr;margin:1.2rem 0}
.step{border:1px solid var(--line);border-radius:var(--radius);padding:1.1rem;background:#fff}
.step .n{display:inline-grid;place-items:center;width:2rem;height:2rem;border-radius:50%;background:var(--brand);color:#fff;font-weight:800;margin-bottom:.5rem}

/* Contact form */
.form{display:grid;gap:.9rem;max-width:34rem}
.form label{display:grid;gap:.35rem;font-weight:600}
.form input,.form textarea{padding:.7rem .8rem;border:1px solid var(--line);border-radius:10px;font-size:1rem;min-height:48px;font-family:inherit}
.form textarea{min-height:140px;resize:vertical}

/* Footer */
.site-footer{border-top:1px solid var(--line);margin-top:3rem;background:var(--soft)}
.footer-in{max-width:var(--max);margin:0 auto;padding:2rem 1.1rem;display:grid;gap:1.4rem}
.footer-in nav{display:flex;flex-wrap:wrap;gap:.4rem 1.2rem}
.footer-in nav a{color:var(--muted);text-decoration:none;font-size:.95rem}
.footer-in nav a:hover{color:var(--brand)}
.footer-brand{display:flex;align-items:center;gap:.5rem;font-weight:800}
.footer-brand svg{width:26px;height:26px}
.copy{font-size:.85rem;color:var(--muted)}

.skip{position:absolute;left:-9999px}
.skip:focus{left:1rem;top:1rem;background:#fff;padding:.6rem;border:2px solid var(--brand);z-index:99}

@media(min-width:760px){
  h1{font-size:2.6rem}
  .tool{grid-template-columns:1.5fr 1fr;padding:1.4rem}
  .cards{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr)}
  .demo-grid{grid-template-columns:repeat(4,1fr)}
  .footer-in{grid-template-columns:1fr 2fr}
}
@media(max-width:759px){
  .nav-toggle{display:block}
  .site-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:.6rem 1.1rem 1rem;border-bottom:1px solid var(--line)}
  .site-nav.open{display:flex}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}