[hidden]{display:none !important}
:root{
  --bg:#f7f8fb; --card:#ffffff; --ink:#14182b; --muted:#5b6275; --line:#e3e6ee;
  --brand:#5b4bff; --brand-ink:#ffffff; --brand-soft:#eeecff; --ok:#0f9d58;
  --radius:14px; --shadow:0 6px 24px rgba(20,24,43,.06);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0f1220; --card:#171b2e; --ink:#eef0f7; --muted:#a3a9bd; --line:#2a3050;
    --brand:#8b7fff; --brand-ink:#0f1220; --brand-soft:#262347; --shadow:none;
  }
  :root:not([data-theme="light"]) .how-it-works>.wrap{background:linear-gradient(125deg,#262347 0%,#171b2e 76%);border-color:#39345f}
  :root:not([data-theme="light"]) .demo-card{background:#171b2e;border-color:#2a3050}
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
a{color:var(--brand)}
img,svg,canvas{max-width:100%}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}

/* header */
.site-header{background:var(--card);border-bottom:1px solid var(--line);color:var(--ink)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;font-size:20px;color:var(--ink);text-decoration:none}
.logo-mark{width:32px;height:32px;border-radius:10px;background:var(--brand);color:var(--brand-ink);display:grid;place-items:center;font-size:14px}
.nav{display:flex;gap:18px;flex-wrap:wrap}
.nav a{color:var(--muted);text-decoration:none;font-weight:600;font-size:15px;transition:color .16s ease}
.nav a:hover,.nav a[aria-current]{color:var(--ink)}

/* hero */
.hero{padding:50px 0 24px;text-align:center}
.hero h1{font-size:clamp(28px,5vw,44px);line-height:1.15;margin:0 0 10px}
.hero p{color:var(--muted);font-size:18px;margin:0 auto;max-width:640px}
.hero{animation:rise-in .45s ease-out both}
.tool{animation:rise-in .5s .08s ease-out both}
@keyframes rise-in{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}

/* Quick visual walkthrough */
.how-it-works{padding:32px 0 8px}
.how-it-works>.wrap{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(230px,.7fr);align-items:center;gap:36px;background:linear-gradient(125deg,#f0eeff 0%,#fbfaff 76%);border:1px solid #e1defb;border-radius:24px;padding:34px;box-shadow:var(--shadow)}
.eyebrow{margin:0 0 4px;color:var(--brand);font-size:13px;font-weight:800;letter-spacing:.06em;text-transform:uppercase}
.how-copy h1{max-width:620px;margin:0 0 12px;font-size:clamp(30px,4.2vw,46px);line-height:1.08;letter-spacing:-.035em}
.how-intro{max-width:590px;margin:0;color:var(--muted);font-size:18px;line-height:1.5}
.how-examples{max-width:590px;margin:12px 0 20px;color:var(--ink);font-size:14px;font-weight:600}
.steps-label{margin:0 0 10px}
.demo-steps{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.demo-steps li{display:flex;align-items:center;gap:12px;animation:step-glow 5.4s ease-in-out infinite}
.demo-steps li:nth-child(2){animation-delay:1.8s}
.demo-steps li:nth-child(3){animation-delay:3.6s}
.demo-steps li>span{display:grid;place-items:center;flex:0 0 32px;width:32px;height:32px;border-radius:50%;background:var(--brand-soft);color:var(--brand);font-weight:800}
.demo-steps strong,.demo-steps small{display:block}
.demo-steps small{color:var(--muted);font-size:13px}
.demo-cta{margin-top:16px}
.demo-card{justify-self:center;width:min(100%,260px);display:flex;flex-direction:column;align-items:center;gap:9px;padding:14px;border:1px solid #e1defb;border-radius:18px;background:#fff;box-shadow:0 12px 28px rgba(45,37,110,.09);animation:demo-float 3s ease-in-out infinite}
.demo-input{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--card);overflow:hidden}
.demo-input-label,.demo-url{display:block}
.demo-input-label{color:var(--muted);font-size:11px}
.demo-url{max-width:100%;overflow:hidden;white-space:nowrap;color:var(--ink);font-size:13px;animation:typing 2.4s steps(24,end) both}
.demo-arrow{color:var(--brand);font-size:20px;line-height:1;animation:arrow-bob 1s ease-in-out infinite alternate}
.demo-qr{width:150px;height:150px;display:grid;place-items:center;padding:6px;border-radius:8px;background:#fff}
.demo-qr canvas,.demo-qr svg{display:block;width:100% !important;height:auto !important}
.demo-loading{padding:8px;color:var(--muted);font-size:12px;text-align:center}
.demo-caption{color:var(--muted);font-size:12px;text-align:center}
@keyframes step-glow{0%,24%,100%{opacity:.72}8%,18%{opacity:1}}
@keyframes demo-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}
@keyframes typing{from{max-width:0}to{max-width:100%}}
@keyframes arrow-bob{to{transform:translateY(3px)}}
@media (max-width:700px){.how-it-works{padding-top:20px}.how-it-works>.wrap{grid-template-columns:1fr;gap:20px;padding:22px}.how-copy h1{font-size:clamp(30px,8vw,40px)}.demo-card{width:min(100%,240px)}}

/* ad slots */
.ad-slot{margin:20px auto;text-align:center;min-height:0}

/* tool */
.tool{display:grid;grid-template-columns:1.25fr 1fr;gap:20px;margin:24px 0}
@media (max-width:820px){.tool{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.tabs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}
.tab{border:1px solid var(--line);background:var(--bg);color:var(--ink);padding:8px 12px;border-radius:999px;font:inherit;font-size:14px;font-weight:600;cursor:pointer;transition:background .16s ease,border-color .16s ease,color .16s ease}
.tab[aria-selected="true"]{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}
.panel{display:none}
.panel.active{display:block;animation:panel-in .18s ease-out}
@keyframes panel-in{from{opacity:.55;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}
label{display:block;font-size:14px;font-weight:600;margin:12px 0 6px}
input[type=text],input[type=url],input[type=email],input[type=tel],input[type=password],textarea,select{
  width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);font:inherit}
textarea{min-height:90px;resize:vertical}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:520px){.row{grid-template-columns:1fr}}
.check{display:flex;align-items:center;gap:8px;font-weight:500;margin-top:12px}
details.design{margin-top:18px;border-top:1px solid var(--line);padding-top:12px}
details.design summary{cursor:pointer;font-weight:700}
input[type=color]{width:100%;height:42px;border:1px solid var(--line);border-radius:10px;background:var(--bg);padding:3px}
input[type=range]{width:100%}
.preview{display:flex;flex-direction:column;align-items:center;gap:14px;position:sticky;top:16px;align-self:start}
#qr{width:100%;max-width:300px;aspect-ratio:1;display:grid;place-items:center;background:#fff;border-radius:12px;padding:10px;border:1px solid var(--line)}
#qr canvas,#qr svg{width:100% !important;height:auto !important}
.btns{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.btn{border:0;background:var(--brand);color:var(--brand-ink);padding:11px 18px;border-radius:12px;font:inherit;font-weight:700;cursor:pointer;text-decoration:none;display:inline-block}
.btn:not(:disabled){transition:transform .16s ease,filter .16s ease}
.btn:not(:disabled):hover{transform:translateY(-2px);filter:brightness(1.06)}
.btn:not(:disabled):active{transform:translateY(0)}
.btn.secondary{background:var(--brand-soft);color:var(--ink)}
.note{font-size:13px;color:var(--muted);text-align:center;margin:0}

/* content */
.section{margin:40px 0}
.section h2{font-size:26px;margin:0 0 12px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media (max-width:820px){.grid3{grid-template-columns:1fr}}
.grid3 .card h3{margin:0 0 6px;font-size:18px}
.grid3 .card p{margin:0;color:var(--muted)}
.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;gap:12px}
.steps li{counter-increment:s;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px 14px 56px;position:relative}
.steps li::before{content:counter(s);position:absolute;left:16px;top:14px;width:28px;height:28px;border-radius:50%;background:var(--brand);color:var(--brand-ink);display:grid;place-items:center;font-weight:800;font-size:14px}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:700}
.faq p{color:var(--muted);margin:10px 0 0}

/* articles */
.article{max-width:760px;margin:32px auto}
.article h1{font-size:clamp(28px,4.5vw,40px);line-height:1.2;margin:0 0 8px}
.article .meta{color:var(--muted);font-size:14px;margin-bottom:24px}
.article h2{margin-top:32px}
.article table{width:100%;border-collapse:collapse;margin:16px 0;font-size:15px}
.article th,.article td{border:1px solid var(--line);padding:8px 10px;text-align:left}
.article th{background:var(--brand-soft)}
.cta{background:var(--brand-soft);border-radius:var(--radius);padding:18px;margin:28px 0;text-align:center}
.post-list{display:grid;gap:16px}
.post-list a.card{display:block;text-decoration:none;color:var(--ink)}
.post-list h2{font-size:20px;margin:0 0 6px}
.post-list p{margin:0;color:var(--muted)}

/* footer */
.site-footer{border-top:1px solid var(--line);background:var(--card);margin-top:48px;padding:24px 0;font-size:14px;color:var(--muted)}
.site-footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.site-footer a{color:var(--muted);margin-right:14px}
.site-footer a:hover{color:var(--ink)}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;scroll-behavior:auto !important;transition:none !important}
}