:root{
  --bg:#ffffff; --bg-alt:#f5f7fb; --surface:#ffffff; --text:#0f172a; --muted:#5b6478;
  --line:#e3e8f1; --brand:#4f46e5; --brand-2:#0ea5e9; --brand-ink:#ffffff;
  --ok:#15803d; --error:#b91c1c; --radius:16px; --shadow:0 10px 30px rgba(15,23,42,.08);
  --code-bg:#0b1220; --code-text:#d6e2ff;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0b1020; --bg-alt:#0f1630; --surface:#131b36; --text:#e8ecf8; --muted:#9aa5c3;
    --line:#222c4f; --brand:#7c83ff; --brand-2:#38bdf8; --brand-ink:#0b1020;
    --ok:#4ade80; --error:#fca5a5; --shadow:0 10px 30px rgba(0,0,0,.35);
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
.container{width:min(1120px,100% - 32px);margin-inline:auto}
.narrow{width:min(780px,100% - 32px)}
a{color:inherit}
h1,h2,h3,h4{line-height:1.15;margin:0 0 .5em}
h1{font-size:clamp(2rem,5vw,3.4rem);letter-spacing:-.02em}
h2{font-size:clamp(1.6rem,3.5vw,2.3rem);letter-spacing:-.01em}
p{margin:0 0 1em}
.muted{color:var(--muted)} .muted-light{color:rgba(255,255,255,.8);margin-top:1.2rem}

/* nav */
.nav{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:24px;min-height:64px}
.brand{font-weight:800;font-size:1.25rem;text-decoration:none;letter-spacing:-.02em}
.brand span{color:var(--brand)}
.menu{display:flex;gap:20px;margin-left:auto}
.menu a{text-decoration:none;color:var(--muted);font-size:.95rem}
.menu a:hover{color:var(--text)}
.nav-cta{display:flex;gap:8px}
.menu-toggle[hidden]{display:none}
@media(max-width:1100px){
  .nav-inner{flex-wrap:wrap;gap:12px;padding-block:12px}
  .nav-cta{margin-left:auto;flex-wrap:wrap}
  .menu{order:3;flex-basis:100%;flex-wrap:wrap;margin:0;gap:8px 20px}
  .menu a{padding:8px 0}
  .js-nav .menu:not(.is-open){display:none}
  .menu-toggle:not([hidden]){display:inline-flex;margin-left:auto}
}
@media(min-width:1101px){.menu-toggle:not([hidden]){display:none}}
@media(max-width:540px){
  .nav{position:relative}
  .nav-cta{width:100%;margin:0}
  .nav-cta .btn{flex:1;padding-inline:.6rem}
  .hero{padding-top:40px}
}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:.7rem 1.1rem;border-radius:12px;font-weight:600;text-decoration:none;border:1px solid transparent;cursor:pointer;font:inherit;font-weight:600}
.btn-primary{background:var(--brand);color:var(--brand-ink)}
.btn-primary:hover{filter:brightness(1.08)}
.btn-outline{border-color:var(--line);background:var(--surface)}
.btn-ghost{color:var(--text)}
.btn-ghost:hover{background:var(--bg-alt)}
.btn-light{background:#fff;color:#1e1b4b}
.btn-outline-light{border-color:rgba(255,255,255,.5);color:#fff}
.block{display:flex;width:100%;margin-top:.5rem}

/* hero */
.hero{padding:72px 0 56px;background:radial-gradient(1000px 400px at 80% -10%,color-mix(in srgb,var(--brand) 18%,transparent),transparent)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr}}
.pill{display:inline-block;padding:.3rem .75rem;border-radius:999px;background:color-mix(in srgb,var(--brand) 14%,transparent);color:var(--brand);font-size:.82rem;font-weight:600;margin-bottom:1rem}
.lead{font-size:1.1rem;color:var(--muted);max-width:56ch}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin:1.4rem 0}
.actions.center{justify-content:center}
.hero-points{display:flex;flex-wrap:wrap;gap:8px 18px;list-style:none;padding:0;margin:0;color:var(--muted);font-size:.92rem}
.hero-points li::before{content:"✓ ";color:var(--ok);font-weight:700}

/* panel */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.dot-online{font-size:.8rem;color:var(--ok);font-weight:600}
.dot-online::before{content:"●";margin-right:6px}
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:14px}
.stats>div{background:var(--bg-alt);border-radius:12px;padding:12px}
.stats small{display:block;color:var(--muted);font-size:.78rem}
.stats b{display:block;font-size:1.5rem}
.stats em{font-style:normal;color:var(--muted);font-size:.78rem}
.bar{height:10px;background:var(--bg-alt);border-radius:999px;overflow:hidden;margin-bottom:8px}
.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand-2));border-radius:999px}

/* sections */
.section{padding:72px 0}
.section.alt{background:var(--bg-alt)}
.section-head{max-width:680px;margin-bottom:32px}
.section-head p{color:var(--muted)}
.eyebrow{display:block;text-transform:uppercase;letter-spacing:.12em;font-size:.76rem;font-weight:700;color:var(--brand);margin-bottom:.6rem}
.sub{margin:36px 0 14px}
.cards-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
@media(max-width:820px){.cards-2{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.card.featured{border-color:var(--brand)}
.tag{display:inline-block;font-size:.74rem;font-weight:700;padding:.2rem .6rem;border-radius:999px;background:var(--bg-alt);color:var(--muted);margin-bottom:.8rem}
.tag-alt{background:color-mix(in srgb,var(--brand) 14%,transparent);color:var(--brand)}
.price{font-size:2.3rem;font-weight:800;margin:.2rem 0 1rem}
.price small{font-size:1rem;font-weight:500;color:var(--muted);margin-left:4px}
.check{list-style:none;padding:0;margin:0 0 1rem}
.check li{padding:.3rem 0 .3rem 1.6rem;position:relative}
.check li::before{content:"✓";position:absolute;left:0;color:var(--ok);font-weight:700}
.note{font-size:.88rem;color:var(--muted)}

.packs{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:28px}
@media(max-width:900px){.packs{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.packs{grid-template-columns:1fr}}
.pack{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px;display:flex;flex-direction:column;gap:4px}
.pack.hot{border-color:var(--brand)}
.pack .n{font-size:1.5rem;font-weight:800}
.pack .p{font-size:1.1rem;color:var(--brand);font-weight:700}
.pack small{color:var(--muted)}
.pack a{margin-top:10px}

.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:var(--surface)}
.compare{width:100%;border-collapse:collapse;min-width:520px}
.compare th,.compare td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line)}
.compare th{background:var(--bg-alt);font-size:.82rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.compare tr:last-child td{border-bottom:0}

/* simulator */
label{display:block;font-weight:600;margin-bottom:.5rem}
input[type=range]{width:100%;accent-color:var(--brand)}
input[type=number]{width:100%;padding:.7rem .9rem;border-radius:10px;border:1px solid var(--line);background:var(--bg);color:var(--text);font:inherit}
.sim-row{display:flex;justify-content:space-between;color:var(--muted);margin:.4rem 0 1rem}
.sim{margin:1rem 0 0}
.sim>div{display:flex;justify-content:space-between;padding:.55rem 0;border-bottom:1px dashed var(--line)}
.sim dt{color:var(--muted)} .sim dd{margin:0;font-weight:700}
.sim .total{border-bottom:0;font-size:1.2rem}
.sim .total dd{color:var(--brand)}

/* code */
.code-card{background:var(--code-bg);border-radius:var(--radius);overflow:hidden;border:1px solid #1d2a4a}
.code-head{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;color:#9fb0d8;font-size:.85rem;border-bottom:1px solid #1d2a4a}
.copy{background:#1b2a50;color:#d6e2ff;border:0;border-radius:8px;padding:.3rem .7rem;cursor:pointer;font:inherit;font-size:.8rem}
.copy:hover{background:#25376a}
pre{margin:0;padding:16px;overflow-x:auto;color:var(--code-text);font-size:.86rem;line-height:1.55}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.steps{list-style:none;counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding:0;margin:32px 0 0}
@media(max-width:900px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.steps{grid-template-columns:1fr}}
.steps li{counter-increment:s;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px;position:relative}
.steps li::before{content:counter(s);display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--brand);color:var(--brand-ink);font-weight:700;margin-bottom:8px}
.steps b{display:block}.steps span{color:var(--muted);font-size:.9rem}

.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
@media(max-width:960px){.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.grid-4{grid-template-columns:1fr}}
.mini{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px}
.mini h4{margin-bottom:.4rem}.mini p{color:var(--muted);font-size:.92rem;margin:0}

/* faq */
details{border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin-bottom:10px;background:var(--surface)}
summary{cursor:pointer;font-weight:600}
details[open] summary{margin-bottom:.5rem}
details p{margin:0;color:var(--muted)}

/* cta + footer */
.cta{background:linear-gradient(135deg,#312e81,#0369a1);color:#fff;text-align:center;padding:64px 0}
.footer{padding:40px 0;border-top:1px solid var(--line)}
.footer-inner{display:grid;gap:14px}
.legal{font-size:.82rem;color:var(--muted);max-width:90ch;margin:0}
.legal a{text-decoration:underline}
:focus-visible{outline:3px solid var(--brand);outline-offset:3px}
[hidden]{display:none!important}
section[id],main[id]{scroll-margin-top:110px}
.skip-link{position:absolute;top:8px;left:8px;z-index:50;transform:translateY(-180%);background:var(--surface);color:var(--text);padding:12px;border:2px solid var(--brand);border-radius:8px}
.skip-link:focus{transform:translateY(0)}
.notice{padding:18px 20px;border:1px solid var(--brand);border-left-width:4px;border-radius:12px;background:var(--surface);color:var(--text);font-size:.95rem;margin-bottom:24px}
.notice a,.section-head a{text-underline-offset:3px}
.spaced{margin-top:24px}
.demo-label{font-size:.8rem;color:var(--brand);font-weight:700;padding:.2rem .5rem;border:1px solid var(--line);border-radius:8px}
.field-error{color:var(--error);font-size:.9rem;min-height:1.5em;margin:.4rem 0}
input[aria-invalid=true]{border-color:var(--error)}
input,button,a{-webkit-tap-highlight-color:transparent}
input[type=range]{min-height:44px}
.btn,.copy,.menu a,summary{min-height:44px}
.cards-2>*{min-width:0}
.sim>div{gap:16px;flex-wrap:wrap}
.sim dd{overflow-wrap:anywhere}
.pack button{margin-top:10px}
.mini h3{font-size:1.05rem}
.legal-page{padding:56px 0 72px}
.legal-page h2{font-size:1.35rem;margin-top:2rem}
.legal-page p,.legal-page li{max-width:75ch}
.legal-page nav{display:flex;flex-wrap:wrap;gap:12px 24px;margin-top:32px}
.legal-page li{margin-bottom:.6rem}
.legal-page .eyebrow{margin-top:24px}
@media(max-width:380px){
  .card{padding:18px}
  .panel-head{gap:12px;flex-wrap:wrap}
  .price{font-size:1.9rem}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}