:root{
  --ink:#0f172a; --ink2:#334155; --muted:#64748b; --line:#e2e8f0; --bg:#ffffff; --soft:#f8fafc;
  --brand:#4f46e5; --brand2:#0ea5e9; --brand-dark:#3730a3; --ok:#4f46e5; --err:#dc2626;
  --radius:14px; --shadow:0 1px 2px rgba(15,23,42,.06),0 8px 30px rgba(15,23,42,.06);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
img,svg{max-width:100%}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.narrow{max-width:760px;margin:0 auto;padding:0 24px}

/* nav */
.nav{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.88);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;color:var(--ink);letter-spacing:-.01em}
.brand:hover{text-decoration:none}
.brand svg{width:30px;height:30px}
.nav ul{display:flex;gap:28px;list-style:none;margin:0;padding:0;align-items:center}
.nav ul a{color:var(--ink2);font-size:15px;font-weight:500}
.nav ul a:hover{color:var(--ink);text-decoration:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:10px;font-weight:600;font-size:15px;border:1px solid transparent;cursor:pointer;transition:transform .12s,box-shadow .12s,background .12s;font-family:inherit}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:linear-gradient(135deg,var(--brand),#6366f1);color:#fff;box-shadow:0 6px 18px rgba(79,70,229,.32)}
.btn-primary:hover{box-shadow:0 10px 24px rgba(79,70,229,.4)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--soft)}
.btn-fb{background:#1877f2;color:#fff}
.btn-fb:hover{background:#166fe0}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}
.btn-sm{padding:8px 16px;font-size:14px}
.btn-lg{padding:15px 28px;font-size:16px}

/* hero */
.hero{padding:88px 0 72px;background:radial-gradient(1000px 420px at 80% -10%,rgba(99,102,241,.14),transparent 60%),radial-gradient(800px 360px at 0% 0%,rgba(14,165,233,.10),transparent 60%)}
.hero .grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--brand-dark);background:#eef2ff;border:1px solid #e0e7ff;border-radius:999px;padding:5px 12px;margin-bottom:20px}
h1{font-size:clamp(34px,5vw,54px);line-height:1.08;letter-spacing:-.03em;margin:0 0 20px}
h1 .grad{background:linear-gradient(135deg,var(--brand),var(--brand2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:19px;color:var(--ink2);max-width:560px;margin:0 0 30px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap}
.fine{font-size:13.5px;color:var(--muted);margin-top:16px}

/* mock card in hero */
.panel{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);overflow:hidden}
.panel-head{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--line);background:var(--soft)}
.dot{width:10px;height:10px;border-radius:50%;background:#e2e8f0}
.panel-body{padding:20px}
.row{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}
.row:last-child{border-bottom:0}
.avatar{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand2));flex:none;display:grid;place-items:center;color:#fff;font-weight:700;font-size:15px}
.row .t{font-weight:600;font-size:15px}
.row .s{font-size:13px;color:var(--muted)}
.pill{margin-left:auto;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;background:#eef2ff;color:var(--ok);border:1px solid #e0e7ff;white-space:nowrap}
.pill.plan{background:#eff6ff;color:#1d4ed8;border-color:#dbeafe}

/* sections */
section{padding:84px 0}
section.alt{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
h2{font-size:clamp(28px,3.4vw,38px);letter-spacing:-.025em;line-height:1.15;margin:0 0 14px}
.sub{font-size:18px;color:var(--ink2);max-width:660px;margin:0 0 48px}
.center{text-align:center}.center .sub{margin-left:auto;margin-right:auto}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:0 1px 2px rgba(15,23,42,.04)}
.card h3{margin:14px 0 8px;font-size:18px;letter-spacing:-.01em}
.card p{margin:0;color:var(--ink2);font-size:15.5px}
.icon{width:44px;height:44px;border-radius:12px;background:#eef2ff;color:var(--brand);display:grid;place-items:center}
.icon svg{width:22px;height:22px}
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{position:relative;padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.step:before{counter-increment:s;content:counter(s);display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--ink);color:#fff;font-weight:700;font-size:14px;margin-bottom:14px}
.step h3{margin:0 0 6px;font-size:17px}
.step p{margin:0;font-size:15px;color:var(--ink2)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
table.perm{width:100%;border-collapse:collapse;font-size:15px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
table.perm th,table.perm td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top;overflow-wrap:anywhere}
table.perm th{background:var(--soft);font-size:13px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
table.perm tr:last-child td{border-bottom:0}
code,.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em;background:#f1f5f9;padding:2px 6px;border-radius:6px;overflow-wrap:anywhere}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:600;font-size:16.5px}
.faq details p{margin:12px 0 0;color:var(--ink2)}
.cta-band{background:linear-gradient(135deg,#312e81,#4f46e5 55%,#0284c7);color:#fff;border-radius:22px;padding:56px 40px;text-align:center}
.cta-band h2{color:#fff}
.cta-band p{color:#e0e7ff;max-width:560px;margin:0 auto 26px;font-size:18px}
.cta-band .btn-ghost{border-color:transparent}

/* footer */
footer{border-top:1px solid var(--line);padding:44px 0;background:#fff;font-size:14.5px;color:var(--muted)}
footer .wrap{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
footer ul{list-style:none;padding:0;margin:0;display:flex;gap:22px;flex-wrap:wrap}
footer a{color:var(--ink2)}
.disclaimer{max-width:520px;font-size:13px;margin-top:8px}

/* legal pages */
.doc{padding:64px 0 96px}
.doc h1{font-size:clamp(30px,4vw,42px);margin-bottom:6px}
.doc .meta{color:var(--muted);font-size:14.5px;margin-bottom:36px}
.doc h2{font-size:22px;margin:40px 0 10px;letter-spacing:-.015em}
.doc h3{font-size:17px;margin:24px 0 6px}
.doc p,.doc li{color:var(--ink2);font-size:16.5px}
.doc ul,.doc ol{padding-left:22px}
.doc li{margin:6px 0}
.callout{background:#eef2ff;border:1px solid #e0e7ff;border-radius:12px;padding:16px 20px;margin:24px 0;color:var(--ink2)}
.toc{background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:16px 22px;margin:0 0 12px}
.toc a{display:block;padding:3px 0;font-size:15px}

/* app (connect) */
.app{padding:48px 0 96px;background:var(--soft);min-height:70vh}
.app h1{font-size:34px}
.stepcard{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:28px;margin-bottom:22px}
.stepcard h2{font-size:20px;margin:0 0 4px;display:flex;align-items:center;gap:10px}
.stepcard .n{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--ink);color:#fff;font-size:13px;font-weight:700}
.stepcard .hint{color:var(--muted);font-size:14.5px;margin:0 0 18px}
.stepcard.locked{opacity:.55;pointer-events:none}
.stepcard.done .n{background:var(--ok)}
label{display:block;font-weight:600;font-size:14.5px;margin:16px 0 6px}
input[type=text],input[type=url],textarea,select{width:100%;font:inherit;padding:11px 13px;border:1px solid #cbd5e1;border-radius:10px;background:#fff;color:var(--ink)}
input:focus,textarea:focus,select:focus{outline:2px solid #c7d2fe;border-color:var(--brand)}
textarea{min-height:120px;resize:vertical}
.pages{display:grid;gap:10px}
.pagebtn{display:flex;align-items:center;gap:12px;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:#fff;cursor:pointer;text-align:left;font:inherit;width:100%}
.pagebtn:hover{border-color:var(--brand)}
.pagebtn.sel{border-color:var(--brand);background:#eef2ff}
.pagebtn img{width:38px;height:38px;border-radius:10px;object-fit:cover}
.status{margin-top:16px;padding:12px 14px;border-radius:10px;font-size:14.5px;display:none;word-break:break-word}
.status.show{display:block}
.status.ok{background:#eef2ff;color:#3730a3;border:1px solid #e0e7ff}
.status.err{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}
.status.info{background:#eff6ff;color:#1e40af;border:1px solid #bfdbfe}
.status{overflow-wrap:anywhere}
.perms{list-style:none;padding:0;margin:0 0 20px;display:grid;gap:10px}
.perms li{display:flex;gap:12px;font-size:15px;color:var(--ink2)}
.perms li b{color:var(--ink);white-space:nowrap}
.checks{display:flex;gap:22px;flex-wrap:wrap;margin:14px 0 4px}
.checks label{display:flex;align-items:center;gap:8px;margin:0;font-weight:500}
.posts{margin:0;padding:0;list-style:none}
.posts li{padding:10px 0;border-bottom:1px solid var(--line);font-size:14.5px;color:var(--ink2);overflow-wrap:anywhere}
.posts li:last-child{border-bottom:0}
.who{display:flex;align-items:center;gap:12px;justify-content:space-between;flex-wrap:wrap}

/* connect app: minimal chrome */
.capbar{position:fixed;top:0;left:0;right:0;z-index:50;background:var(--ink);color:#fff;display:flex;align-items:center;gap:10px;height:46px;padding:0 16px;font-size:14px;font-weight:600}
.capbar svg{width:22px;height:22px;flex:none}
.capbar span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.capbar-spacer{height:46px}
.footer-min{border-top:1px solid var(--line);padding:28px 0;background:#fff;font-size:13.5px;color:var(--muted);text-align:center}
.footer-min ul{list-style:none;display:flex;gap:18px;justify-content:center;flex-wrap:wrap;margin:0;padding:0}
.footer-min a{color:var(--ink2)}

/* screen 1: single choice */
.gate{min-height:calc(70vh - 46px);display:flex;align-items:center;justify-content:center;padding:40px 0}
.gate-card{max-width:440px;width:100%;text-align:center;padding:8px 24px}
.gate-card svg{width:52px;height:52px;margin:0 auto 18px;display:block}
.gate-card h1{font-size:26px;margin:0 0 10px}
.gate-card p{color:var(--ink2);font-size:16px;margin:0 0 28px}
.btn-fb-big{width:100%;padding:16px 24px;font-size:17px}
.gate-card .fine{margin-top:20px}

/* connected card */
.connected{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:26px;margin:0 0 20px;display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.connected img{width:56px;height:56px;border-radius:14px;object-fit:cover;flex:none;background:var(--soft)}
.connected .name{font-weight:700;font-size:18px}
.connected .sub{color:var(--muted);font-size:14px}
.connected .badge{margin-left:auto;font-size:12.5px;font-weight:600;padding:5px 12px;border-radius:999px;background:#eef2ff;color:var(--ok);border:1px solid #e0e7ff}

/* pages: one-tap chooser */
.pagepicker{display:grid;gap:10px;margin:18px 0}

/* advanced tools disclosure */
.advtoggle{background:none;border:none;color:var(--brand-dark);font-weight:600;font-size:14.5px;cursor:pointer;padding:8px 0;display:inline-flex;align-items:center;gap:6px}
.advtoggle:hover{text-decoration:underline}
.advpanel{display:none;margin-top:10px}
.advpanel.open{display:block}

/* one feature card */
.feat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 22px;margin-bottom:16px}
.feat h3{margin:0 0 4px;font-size:16.5px;display:flex;gap:8px}
.feat h3 .idx{color:var(--muted);font-variant-numeric:tabular-nums}
.feat .uses{margin:0 0 10px;font-size:12.5px;color:var(--muted)}
.feat .uses code{overflow-wrap:anywhere}
.feat .explain{margin:0 0 12px;font-size:14px;color:var(--ink2)}
.feat .row2{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:10px}
.feat .mini-status{margin-top:10px;font-size:13.5px}
.feat .mini-status.err{color:#991b1b}
.feat .mini-status.ok{color:#3730a3}
.feat ul.plain{list-style:none;padding:0;margin:0}
.feat ul.plain li{padding:10px 0;border-bottom:1px solid var(--line);font-size:14px;overflow-wrap:anywhere}
.feat ul.plain li:last-child{border-bottom:0}
.thumbs{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin:10px 0}
.thumbs img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:8px;border:1px solid var(--line);cursor:pointer}
.thumbs img.sel{outline:2px solid var(--brand)}
.convo{display:flex;align-items:center;gap:10px;width:100%;padding:10px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;text-align:left;font:inherit;margin-bottom:8px}
.convo:hover{border-color:var(--brand)}
.metricgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:10px;margin-top:10px}
.metricbox{border:1px solid var(--line);border-radius:10px;padding:12px 14px}
.metricbox .k{font-size:12.5px;color:var(--muted)}
.metricbox .v{font-size:20px;font-weight:700}
.copywrap{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.copywrap code{font-size:13px}

@media(max-width:480px){.thumbs{grid-template-columns:repeat(3,1fr)}}

@media(max-width:900px){
  .hero .grid,.two{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .nav ul li:not(:last-child){display:none}
}
@media(max-width:560px){.steps{grid-template-columns:1fr}.hero{padding:56px 0 48px}section{padding:56px 0}}

.nav ul a.btn-primary{color:#fff}
.nav ul a.btn-primary:hover{color:#fff}