/* Cadfai — shared tool/SEO page styles. Loads once, cached across every page. */
:root{
  --bg:#0e1116; --bg-2:#161c27; --bg-3:#1b2230;
  --line:#28303f; --line-2:#3a465b;
  --ink:#e9eef5; --ink-dim:#9aa7b8; --ink-faint:#5b6678;
  --cyan:#34d0e6; --cyan-dim:#1c6f7c; --amber:#f2b53d;
  --disp:'Space Grotesk',sans-serif; --sans:'Inter',system-ui,sans-serif; --mono:'JetBrains Mono',monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1100px;margin:0 auto;padding:0 24px}
::selection{background:var(--cyan);color:#04161a}

/* nav */
nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);background:rgba(14,17,22,.72);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:24px;height:62px}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--disp);font-weight:700;font-size:19px;letter-spacing:.3px}
.logo img{width:28px;height:28px;border-radius:6px}
.logo .logo-tag{font-family:var(--mono);font-weight:500;font-size:10px;letter-spacing:1px;color:var(--ink-faint)}
.nav-links{display:flex;gap:24px;margin-left:auto;font-size:14px;color:var(--ink-dim)}
.nav-links a:hover{color:var(--ink)}
.nav-cta{font-family:var(--mono);font-size:13px;padding:8px 16px;border:1px solid var(--cyan);color:var(--cyan);border-radius:7px;transition:.15s}
.nav-cta:hover{background:var(--cyan);color:#04161a}

/* breadcrumb */
.crumb{font-family:var(--mono);font-size:12px;color:var(--ink-faint);padding:22px 0 0}
.crumb a:hover{color:var(--cyan)}

/* hero */
.hero{padding:26px 0 44px}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:2px;color:var(--cyan);text-transform:uppercase;margin-bottom:14px}
h1{font-family:var(--disp);font-weight:700;font-size:clamp(30px,5vw,50px);line-height:1.08;letter-spacing:-.5px}
h1 .b{color:var(--cyan)}
.sub{color:var(--ink-dim);font-size:clamp(15px,2vw,18px);max-width:640px;margin-top:18px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.btn{font-family:var(--mono);font-size:14px;padding:12px 22px;border-radius:8px;transition:.15s;display:inline-flex;align-items:center;gap:8px;cursor:pointer}
.btn-primary{background:var(--cyan);color:#04161a;font-weight:700;border:1px solid var(--cyan)}
.btn-primary:hover{filter:brightness(1.08)}
.btn-ghost{border:1px solid var(--line-2);color:var(--ink-dim)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--ink)}

/* sample prompt block */
.prompt-box{margin-top:26px;background:var(--bg-2);border:1px solid var(--line);border-radius:12px;padding:16px 18px;max-width:680px}
.prompt-box .label{font-family:var(--mono);font-size:11px;letter-spacing:1px;color:var(--ink-faint);text-transform:uppercase;margin-bottom:8px}
.prompt-box .txt{font-family:var(--mono);font-size:14px;color:var(--ink);line-height:1.6}
.prompt-box .txt .cursor{display:inline-block;width:8px;height:16px;background:var(--cyan);vertical-align:-2px;margin-left:2px}

/* preview */
.preview{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--bg-2);margin:8px 0 6px}
.preview img{width:100%;height:auto}
.preview-cap{font-family:var(--mono);font-size:12px;color:var(--ink-faint);text-align:center;padding:0 0 6px}

/* sections */
section{padding:40px 0;border-top:1px solid var(--line)}
.sec-title{font-family:var(--disp);font-weight:600;font-size:clamp(22px,3vw,30px);letter-spacing:-.3px;margin-bottom:8px}
.sec-lead{color:var(--ink-dim);max-width:640px;margin-bottom:26px}

/* feature / spec grid */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.card{background:var(--bg-2);border:1px solid var(--line);border-radius:12px;padding:20px}
.card h3{font-family:var(--disp);font-weight:600;font-size:16px;margin-bottom:6px}
.card p{color:var(--ink-dim);font-size:14px}
.card .ic{font-family:var(--mono);color:var(--cyan);font-size:13px;margin-bottom:10px}

/* param chips */
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{font-family:var(--mono);font-size:13px;color:var(--ink-dim);background:var(--bg-2);border:1px solid var(--line);border-radius:100px;padding:7px 14px}
.chip b{color:var(--cyan);font-weight:500}

/* steps */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;counter-reset:s}
.step{background:var(--bg-2);border:1px solid var(--line);border-radius:12px;padding:20px;position:relative}
.step::before{counter-increment:s;content:counter(s);font-family:var(--disp);font-weight:700;color:var(--cyan);font-size:22px;display:block;margin-bottom:8px}
.step h3{font-family:var(--disp);font-weight:600;font-size:16px;margin-bottom:4px}
.step p{color:var(--ink-dim);font-size:14px}

/* example prompts list */
.ex{display:flex;flex-direction:column;gap:12px}
.ex .row{background:var(--bg-2);border:1px solid var(--line);border-left:2px solid var(--cyan);border-radius:8px;padding:12px 16px;font-family:var(--mono);font-size:13.5px;color:var(--ink)}

/* format callout */
.format{display:flex;flex-wrap:wrap;gap:20px;align-items:center;background:linear-gradient(180deg,rgba(52,208,230,.05),transparent);border:1px solid var(--line);border-radius:14px;padding:26px}
.format .big{font-family:var(--disp);font-weight:700;font-size:26px}
.format .big b{color:var(--cyan)}
.format p{color:var(--ink-dim);font-size:14px;flex:1;min-width:240px}

/* FAQ */
.faq{display:flex;flex-direction:column;gap:0}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:18px 0;font-family:var(--disp);font-weight:600;font-size:16px;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--cyan);font-weight:400;font-size:22px;line-height:1}
.faq details[open] summary::after{content:"−"}
.faq p{color:var(--ink-dim);font-size:14.5px;padding:0 0 18px;max-width:760px}

/* final CTA */
.cta-final{text-align:center;padding:56px 0}
.cta-final h2{font-family:var(--disp);font-weight:700;font-size:clamp(24px,4vw,38px);letter-spacing:-.4px}
.cta-final p{color:var(--ink-dim);margin:12px 0 26px}

/* related links */
.related{display:flex;flex-wrap:wrap;gap:10px}
.related a{font-family:var(--mono);font-size:13px;color:var(--ink-dim);border:1px solid var(--line);border-radius:8px;padding:9px 14px;transition:.15s}
.related a:hover{border-color:var(--cyan);color:var(--ink)}

/* footer */
footer{border-top:1px solid var(--line);padding:40px 0;color:var(--ink-faint);font-size:13px}
.foot-in{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center}
.foot-links{display:flex;gap:20px;flex-wrap:wrap}
.foot-links a:hover{color:var(--ink)}

@media(max-width:640px){
  .nav-links{display:none}
  .nav-in{height:56px}
  section{padding:32px 0}
}

/* ===== blog article + index ===== */
.article{max-width:760px;margin:0 auto;padding:8px 0 20px}
.article .meta{font-family:var(--mono);font-size:12px;color:var(--ink-faint);margin-bottom:14px}
.article h1{font-size:clamp(28px,4.5vw,42px);margin-bottom:6px}
.article h2{font-family:var(--disp);font-weight:600;font-size:clamp(20px,3vw,26px);margin:32px 0 10px;letter-spacing:-.3px}
.article h3{font-family:var(--disp);font-weight:600;font-size:18px;margin:22px 0 8px}
.article p{color:var(--ink-dim);margin:12px 0;font-size:16px}
.article ul,.article ol{color:var(--ink-dim);margin:12px 0 12px 22px;font-size:16px}
.article li{margin:6px 0}
.article strong{color:var(--ink)}
.article a{color:var(--cyan)}
.article a:hover{text-decoration:underline}
.article code{font-family:var(--mono);font-size:14px;background:var(--bg-2);border:1px solid var(--line);border-radius:5px;padding:1px 6px;color:var(--ink)}
.callout{background:var(--bg-2);border:1px solid var(--line);border-left:2px solid var(--cyan);border-radius:8px;padding:16px 18px;margin:20px 0}
.callout .k{font-family:var(--mono);font-size:11px;letter-spacing:1px;color:var(--cyan);text-transform:uppercase;margin-bottom:6px}
.inline-cta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;background:linear-gradient(180deg,rgba(52,208,230,.06),transparent);border:1px solid var(--line);border-radius:12px;padding:20px;margin:26px 0}
.inline-cta p{flex:1;min-width:220px;margin:0;color:var(--ink)}
.post-list{display:grid;gap:16px}
.post-card{display:block;background:var(--bg-2);border:1px solid var(--line);border-radius:12px;padding:22px;transition:.15s}
.post-card:hover{border-color:var(--cyan)}
.post-card .tag{font-family:var(--mono);font-size:11px;letter-spacing:1px;color:var(--cyan);text-transform:uppercase}
.post-card h3{font-family:var(--disp);font-weight:600;font-size:20px;margin:8px 0 6px}
.post-card p{color:var(--ink-dim);font-size:14px}
.tool-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.tool-list a{display:block;background:var(--bg-2);border:1px solid var(--line);border-radius:12px;padding:18px;transition:.15s}
.tool-list a:hover{border-color:var(--cyan);transform:translateY(-2px)}
.tool-list h3{font-family:var(--disp);font-weight:600;font-size:16px;margin-bottom:4px}
.tool-list p{color:var(--ink-dim);font-size:13px}
.cat-title{font-family:var(--mono);font-size:12px;letter-spacing:2px;color:var(--ink-faint);text-transform:uppercase;margin:30px 0 12px}

/* buttons inside article/CTA must keep their own text color (not the article link color) */
.article a.btn-primary,.inline-cta a.btn-primary{color:#04161a}
.article a.btn-ghost,.inline-cta a.btn-ghost{color:var(--ink-dim)}
.article a.btn:hover,.inline-cta a.btn:hover{text-decoration:none}