:root{
  --ink:#0B0D12; --ink-2:#3A3F4B; --muted:#6B7180; --line:#E7E7EA; --line-2:#F0F0F2;
  --bg:#FBFBFA; --card:#FFFFFF; --accent:#3D5AFE; --accent-ink:#2A44D8; --accent-soft:#EEF1FF;
  --radius:14px; --shadow:0 1px 2px rgba(11,13,18,.04),0 8px 24px -12px rgba(11,13,18,.12);
  --sans:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --serif:"Instrument Serif",ui-serif,Georgia,serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--sans);background:var(--bg);color:var(--ink);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;font-feature-settings:"cv11","ss01"}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.narrow{max-width:720px}
em.s{font-family:var(--serif);font-style:italic;font-weight:400;letter-spacing:-.01em}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(251,251,250,.78);backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid transparent;transition:border-color .3s}
.nav.scrolled{border-bottom-color:var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:9px;font-weight:650;letter-spacing:-.02em;font-size:17px}
.logo svg{width:24px;height:24px}
.nav-links{display:flex;align-items:center;gap:28px;font-size:14px;color:var(--ink-2)}
.nav-links a:not(.btn):hover{color:var(--ink)}
@media(max-width:760px){.nav-links a:not(.btn){display:none}}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:999px;font-weight:550;font-size:15px;letter-spacing:-.005em;transition:transform .2s,background .2s,border-color .2s,box-shadow .2s;white-space:nowrap;cursor:pointer;border:0;font-family:inherit}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-dark{background:var(--ink);color:#fff;box-shadow:0 1px 0 rgba(255,255,255,.12) inset,0 6px 16px -8px rgba(11,13,18,.5)}
.btn-dark:hover{background:#1E222C;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{border-color:#CFCFD4;background:#fff}
.btn .arr{transition:transform .2s}
.btn:hover .arr{transform:translateX(3px)}

/* hero */
.hero{padding:96px 0 72px;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 14px 6px 10px}
.dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
h1{font-size:clamp(40px,7.2vw,76px);line-height:1.02;letter-spacing:-.045em;font-weight:620;margin:28px auto 0;max-width:15ch}
h1 em.s{font-size:1.06em;color:var(--accent-ink)}
.lede{font-size:clamp(17px,2.2vw,20px);color:var(--ink-2);max-width:40ch;margin:24px auto 0;line-height:1.55}
.cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:36px}
.fine{font-size:13px;color:var(--muted);margin-top:18px}

/* sections */
section{padding:96px 0}
@media(max-width:760px){section{padding:72px 0}.hero{padding:64px 0 56px}.sec-head{margin-bottom:36px}}
.sec-head{max-width:640px;margin-bottom:48px}
.kicker{font-size:13px;font-weight:550;color:var(--accent-ink);letter-spacing:.01em;margin-bottom:14px}
h2{font-size:clamp(30px,4.4vw,46px);line-height:1.08;letter-spacing:-.035em;font-weight:620}
.sec-head p{color:var(--ink-2);font-size:17px;margin-top:16px}
.rule{border-top:1px solid var(--line)}

/* before/after */
.ba-shell{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:48px;align-items:start}
@media(max-width:900px){.ba-shell{grid-template-columns:1fr;gap:36px}}
.ba-controls{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;gap:12px}
.tag{font-size:12px;color:var(--muted);border:1px dashed #D5D5DA;border-radius:999px;padding:4px 10px;background:#fff}
.seg{display:inline-flex;background:#F1F1F3;border-radius:999px;padding:3px}
.seg button{border:0;background:transparent;font:inherit;font-size:13px;font-weight:550;color:var(--muted);padding:6px 14px;border-radius:999px;cursor:pointer;transition:all .25s}
.seg button[aria-pressed="true"]{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.08)}
.ba{position:relative;border-radius:18px;overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);user-select:none;-webkit-user-select:none;touch-action:pan-y}
.ba-stack{display:grid}
.ba-stack>.pf{grid-area:1/1}
.pf-after{clip-path:inset(0 0 0 var(--pos,50%));transition:clip-path .0s}
.ba.animate .pf-after{transition:clip-path .7s cubic-bezier(.65,0,.35,1)}
.ba.animate .handle,.ba.animate .knob{transition:left .7s cubic-bezier(.65,0,.35,1)}
.handle{position:absolute;top:0;bottom:0;left:var(--pos,50%);width:0;z-index:5;pointer-events:none}
.handle::before{content:"";position:absolute;top:0;bottom:0;left:-1px;width:2px;background:var(--ink);opacity:.9}
.knob{position:absolute;z-index:5;top:50%;left:clamp(22px,var(--pos,50%),calc(100% - 22px));transform:translate(-50%,-50%);width:40px;height:40px;border-radius:50%;background:var(--ink);color:#fff;display:grid;place-items:center;box-shadow:0 6px 20px -6px rgba(0,0,0,.5);pointer-events:auto;cursor:ew-resize}
.knob svg{width:18px;height:18px}
.ba-range{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;z-index:6;margin:0;-webkit-appearance:none;appearance:none}
.side-label{position:absolute;top:12px;z-index:4;font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:4px 9px;border-radius:6px;pointer-events:none}
.side-label.l{left:12px;background:rgba(255,255,255,.9);color:var(--muted);border:1px solid var(--line)}
.side-label.r{right:12px;background:var(--ink);color:#fff}

/* profile mock */
.pf{background:#fff;font-size:14px;line-height:1.5}
.pf-banner{height:96px;position:relative}
.pf-before .pf-banner{background:repeating-linear-gradient(135deg,#F3F3F5 0 10px,#EDEDF0 10px 20px)}
.pf-after .pf-banner{background:radial-gradient(120% 140% at 85% 0%,#5A73FF 0%,#2A44D8 40%,#0B0D12 100%);color:#fff;display:flex;align-items:flex-end;justify-content:flex-end;padding:0 18px 12px}
.pf-banner .bn{font-size:12px;font-weight:550;opacity:.92;letter-spacing:-.005em;text-align:right;max-width:60%}
.pf-body{padding:0 22px 22px}
.av{width:76px;height:76px;border-radius:50%;border:4px solid #fff;margin-top:-38px;display:grid;place-items:center;font-weight:650;font-size:24px;position:relative}
.pf-before .av{background:#E4E4E8;color:#9A9FAB}
.pf-after .av{background:linear-gradient(135deg,#1F2430,#454C5E);color:#fff}
.pf-name{font-size:19px;font-weight:650;letter-spacing:-.02em;margin-top:10px}
.pf-head{color:var(--ink-2);margin-top:2px}
.pf-before .pf-head{color:#5A606D}
.pf-meta{font-size:12.5px;color:var(--muted);margin-top:6px}
.pf-meta b{color:var(--accent-ink);font-weight:550}
.pf-sec{border-top:1px solid var(--line-2);margin-top:16px;padding-top:14px}
.pf-sec h4{font-size:13px;font-weight:650;letter-spacing:-.005em;margin-bottom:6px}
.pf-sec p{color:var(--ink-2);font-size:13.5px}
.empty{color:#A2A7B2!important;font-style:italic}
.feat{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.feat div{border:1px solid var(--line);border-radius:10px;padding:10px;font-size:12.5px;font-weight:550;line-height:1.35}
.feat span{display:block;font-weight:400;color:var(--muted);font-size:11.5px;margin-top:3px}
.post{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-2)}
.post+.post{margin-top:8px}
.post time{flex:none;font-size:11.5px;color:var(--muted);min-width:64px;padding-top:1px}
.pill{display:inline-block;font-size:11px;border-radius:999px;padding:2px 8px;margin:6px 6px 0 0}
.pf-after .pill{background:var(--accent-soft);color:var(--accent-ink)}
.ba-note{font-size:12.5px;color:var(--muted);margin-top:12px}

.changes{list-style:none;display:grid;gap:0}
.changes li{display:grid;grid-template-columns:28px 1fr;gap:12px;padding:18px 0;border-top:1px solid var(--line)}
.changes li:last-child{border-bottom:1px solid var(--line)}
.changes .n{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;padding-top:3px}
.changes b{display:block;font-weight:600;letter-spacing:-.01em}
.changes .from{font-size:13.5px;color:var(--muted);margin-top:2px}
.changes .from s{color:#A2A7B2}

/* grid cards */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:860px){.grid3{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:border-color .3s,transform .3s,box-shadow .3s}
.card:hover{border-color:#D9D9DE;transform:translateY(-2px);box-shadow:var(--shadow)}
.card .ic{width:36px;height:36px;border-radius:10px;background:var(--accent-soft);color:var(--accent-ink);display:grid;place-items:center;margin-bottom:20px}
.card .ic svg{width:18px;height:18px}
.card h3{font-size:18px;letter-spacing:-.02em;font-weight:620}
.card p{color:var(--ink-2);font-size:15px;margin-top:8px}
.card ul{list-style:none;margin-top:14px;font-size:14px;color:var(--ink-2)}
.card ul li{padding:5px 0 5px 18px;position:relative}
.card ul li::before{content:"";position:absolute;left:0;top:13px;width:8px;height:1.5px;background:var(--accent)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line)}
@media(max-width:860px){.steps{grid-template-columns:1fr}}
.step{padding:32px 28px 8px 0}
.step+.step{padding-left:28px;border-left:1px solid var(--line)}
@media(max-width:860px){.step,.step+.step{padding:28px 0 4px;border-left:0}.step+.step{border-top:1px solid var(--line)}}
.step .num{font-family:var(--serif);font-style:italic;font-size:40px;line-height:1;color:var(--accent-ink)}
.step h3{font-size:18px;font-weight:620;letter-spacing:-.02em;margin-top:18px}
.step p{color:var(--ink-2);font-size:15px;margin-top:8px}

/* pricing */
.prices{display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:880px}
@media(max-width:760px){.prices{grid-template-columns:1fr}}
.price{background:#fff;border:1px solid var(--line);border-radius:18px;padding:32px;display:flex;flex-direction:column}
.price.feat-p{border-color:var(--ink);box-shadow:0 24px 48px -28px rgba(11,13,18,.35)}
.price .badge{align-self:flex-start;font-size:12px;font-weight:600;background:var(--accent-soft);color:var(--accent-ink);border-radius:999px;padding:4px 10px;margin-bottom:18px}
.price .badge.muted{background:#F1F1F3;color:var(--muted)}
.price h3{font-size:17px;font-weight:620}
.amt{display:flex;align-items:baseline;gap:6px;margin-top:10px}
.amt b{font-size:52px;font-weight:620;letter-spacing:-.045em;line-height:1}
.amt span{color:var(--muted);font-size:15px}
.price .sub{font-size:14px;color:var(--ink-2);margin-top:8px}
.price ul{list-style:none;margin:24px 0 28px;font-size:14.5px;color:var(--ink-2);flex:1}
.price li{display:flex;gap:10px;padding:7px 0;border-top:1px solid var(--line-2)}
.price li svg{flex:none;width:16px;height:16px;margin-top:4px;color:var(--accent-ink)}
.price .btn{width:100%}
.price-note{font-size:13.5px;color:var(--muted);margin-top:20px;max-width:880px}

/* about */
.about{display:grid;grid-template-columns:auto 1fr;gap:32px;align-items:start;max-width:760px}
@media(max-width:600px){.about{grid-template-columns:1fr;gap:20px}}
.mono{width:72px;height:72px;border-radius:18px;background:var(--ink);color:#fff;display:grid;place-items:center;font-family:var(--serif);font-style:italic;font-size:34px}
.about p{color:var(--ink-2);font-size:17px}
.about p+p{margin-top:14px}
.about .sig{font-size:14px;color:var(--muted);margin-top:18px}

/* faq */
.faq{max-width:760px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:22px 0;font-weight:560;font-size:17px;letter-spacing:-.015em;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary .pm{flex:none;width:22px;height:22px;border-radius:50%;border:1px solid var(--line);position:relative;transition:transform .3s}
.faq summary .pm::before,.faq summary .pm::after{content:"";position:absolute;left:50%;top:50%;width:9px;height:1.5px;background:var(--ink);transform:translate(-50%,-50%)}
.faq summary .pm::after{transform:translate(-50%,-50%) rotate(90deg);transition:transform .3s}
.faq details[open] .pm::after{transform:translate(-50%,-50%) rotate(0)}
.faq .a{color:var(--ink-2);padding:0 40px 22px 0;font-size:15.5px}

/* final cta */
.final{background:var(--ink);color:#fff;border-radius:28px;padding:72px 40px;display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:start;position:relative;overflow:hidden}
.final::before{content:"";position:absolute;width:520px;height:520px;right:-180px;top:-260px;background:radial-gradient(circle,rgba(61,90,254,.45),transparent 65%);pointer-events:none}
@media(max-width:860px){.final{grid-template-columns:1fr;padding:48px 24px;border-radius:22px;gap:36px}}
.final h2{color:#fff}
.final h2 em.s{color:#AFBBFF}
.final p{color:#B9BDC8;margin-top:16px;font-size:17px}
.final .btn-light{background:#fff;color:var(--ink);margin-top:28px}
.final .btn-light:hover{transform:translateY(-1px)}
form.sample{position:relative;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);border-radius:18px;padding:24px;display:grid;gap:10px}
form.sample h3{font-size:17px;font-weight:600;letter-spacing:-.015em}
form.sample .hint{font-size:13.5px;color:#9EA3B0;margin:-2px 0 8px}
form.sample input{height:46px;border-radius:10px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font:inherit;font-size:15px;outline:none;transition:border-color .2s,background .2s;width:100%}
form.sample input::placeholder{color:#7D8291}
form.sample input:focus{border-color:#7E92FF;background:rgba(255,255,255,.09)}
form.sample .btn{margin-top:6px;background:var(--accent);color:#fff}
form.sample .btn:hover{background:#536CFF}
form.sample .ok{font-size:14px;color:#AFBBFF;display:none}
form.sample.done .ok{display:block}

footer{padding:40px 0 56px;font-size:13px;color:var(--muted)}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer a:hover{color:var(--ink)}

/* motion */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}.ba.animate .pf-after,.ba.animate .handle{transition:none}}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.prices.single{grid-template-columns:1fr;max-width:520px}
.price .addon{font-size:13.5px;color:var(--muted);text-align:center;margin-top:14px}