:root{--bg:#060912;--surface:#0D1322;--surface-2:#121A2C;--line:#1E2740;--text:#EEF2FA;--muted:#8D97AE;--mint:#2EE6A6;--mint-ink:#04241A;--blue:#4C7DFF;
--head:"Unbounded",system-ui,sans-serif;--body:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}html,body{margin:0}
body{font:16px/1.6 var(--body);background:var(--bg);color:var(--text);overflow-x:hidden}
a{color:var(--mint);text-decoration:none}a:hover{text-decoration:underline}
svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 40px}
.muted{color:var(--muted)}.xs{font-size:12px}.b{font-weight:700}
h1,h2,h3{margin:0;font-weight:700}h1,h2{font-family:var(--head);letter-spacing:-.03em}
h2{font-size:clamp(28px,4vw,40px);line-height:1.15}h3{font-size:18px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:15px 24px;border-radius:12px;font-weight:700;font-size:16px;line-height:1;border:1px solid transparent;transition:transform .15s,opacity .15s,border-color .15s}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn.primary{background:var(--mint);color:var(--mint-ink);box-shadow:0 10px 30px -12px #2EE6A6aa}
.btn.ghost{color:var(--text);border-color:var(--line);background:#0D132299}.btn.ghost:hover{border-color:#2EE6A666}
.btn.sm{padding:10px 16px;font-size:14px;font-weight:600}.btn.sm svg{color:var(--mint);width:15px;height:15px}
.btn.full{width:100%}

/* nav (also plain header on offer/privacy) */
.glow{position:absolute;left:0;right:0;top:-360px;height:900px;pointer-events:none;z-index:-1;
background:radial-gradient(600px 450px at 65% 50%,#2EE6A62a,#4C7DFF14 50%,transparent)}
header{border-bottom:1px solid var(--line)}
header .wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.nav{position:sticky;top:0;z-index:5;background:#060912cc;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.logo{display:inline-flex;align-items:center;gap:10px;font:700 22px var(--head);color:var(--text);letter-spacing:-.02em}.logo:hover{text-decoration:none}
.mark{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;background:var(--mint);color:var(--mint-ink)}.mark svg{width:17px;height:17px;stroke-width:2.4}
header nav a{margin-left:28px;color:var(--muted);font-size:15px}header nav a:hover{color:var(--text);text-decoration:none}
.nav .links{margin-right:auto;margin-left:24px}
.show-m{display:none}

/* hero */
.hero{display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:center;padding-top:88px;padding-bottom:96px}
.pill{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;background:#2EE6A61a;border:1px solid #2EE6A640;color:var(--mint);font-size:13px;font-weight:500}.pill svg{width:14px;height:14px}
.hero h1{font-size:clamp(36px,5.6vw,64px);line-height:1.06;margin:24px 0 20px}
.lead{font-size:19px;color:var(--muted);max-width:560px;margin:0}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.trust{list-style:none;padding:0;margin:26px 0 0;display:flex;gap:24px;flex-wrap:wrap;color:var(--muted);font-size:14px}
.trust li{display:flex;align-items:center;gap:8px}.trust svg{color:var(--mint);width:16px;height:16px}
.app-card{background:linear-gradient(160deg,var(--surface-2),var(--surface));border:1px solid var(--line);border-radius:26px;padding:24px;display:grid;gap:16px;box-shadow:0 40px 80px -40px #000}
.app-head{display:flex;justify-content:space-between;align-items:center}.app-head .b{font-size:17px;margin-top:2px}
.toggle{width:52px;height:30px;border-radius:999px;background:var(--mint);display:flex;justify-content:flex-end;align-items:center;padding:4px}.toggle i{width:22px;height:22px;border-radius:50%;background:var(--mint-ink)}
.connected{display:flex;align-items:center;gap:12px;padding:16px;border-radius:16px;background:#2EE6A61a;border:1px solid #2EE6A633}.connected svg{width:26px;height:26px;color:var(--mint)}
.meter-row{display:flex;justify-content:space-between;margin-bottom:8px}
.bar{height:8px;border-radius:99px;background:var(--line);overflow:hidden}.bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--mint),var(--blue))}
.devices{display:flex;gap:8px;flex-wrap:wrap}.devices span{font-size:12px;padding:6px 10px;border-radius:8px;border:1px solid var(--line);color:var(--muted)}

/* sections */
.section{padding-top:56px;padding-bottom:56px}
.kicker{color:var(--mint);font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;margin-bottom:12px}
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:36px}
.feature{padding:24px;border-radius:20px;background:var(--surface);border:1px solid var(--line)}
.feature p{color:var(--muted);font-size:15px;margin:8px 0 0}.feature h3{margin-top:18px}
.ibox{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:#2EE6A614;color:var(--mint)}.ibox svg{width:22px;height:22px}

/* pricing */
.pricing-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap}
.seg{display:flex;gap:4px;padding:4px;border-radius:999px;background:var(--surface);border:1px solid var(--line)}
.seg button{font:600 14px var(--body);color:var(--muted);background:none;border:0;padding:10px 18px;border-radius:999px;cursor:pointer}
.seg button[aria-selected=true]{background:var(--text);color:var(--bg)}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px;align-items:stretch}
.plan{position:relative;display:flex;flex-direction:column;gap:6px;padding:28px;border-radius:22px;background:var(--surface);border:1px solid var(--line)}
.plan h3{font:700 22px var(--head)}.plan>p{margin:0;font-size:14px}
.plan.hot{background:linear-gradient(160deg,#123A33,var(--surface) 75%);border:1.5px solid var(--mint);transform:translateY(-8px)}
.badge{position:absolute;top:-13px;left:28px;background:var(--mint);color:var(--mint-ink);font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px}
.price{display:flex;flex-direction:column;margin:18px 0 10px}.price .v{font:700 40px/1.1 var(--head);letter-spacing:-.03em}.price .per{font-size:13px;margin-top:4px}
.plan ul{list-style:none;padding:0;margin:4px 0 24px;display:grid;gap:10px;font-size:15px}
.plan li{display:flex;align-items:center;gap:10px}.plan li svg{width:16px;height:16px;color:var(--muted)}.plan.hot li svg{color:var(--mint)}
.plan .btn{margin-top:auto}
.plan.na{opacity:.55}.plan.na .v{color:var(--muted)}
.pay-row{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;margin-top:28px;padding:20px 24px;border-radius:16px;border:1px dashed var(--line)}
.pay-row p{margin:0;font-size:14px;max-width:640px}
.gift{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:14px}.gift svg{width:16px;height:16px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px}
.step{padding:26px;border-radius:20px;background:var(--surface);border:1px solid var(--line)}
.step .n{display:block;font:700 28px var(--head);color:var(--mint);margin-bottom:14px}.step p{color:var(--muted);margin:6px 0 0;font-size:15px}

/* faq */
.faq{max-width:880px}.faq h2{margin-bottom:20px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:22px 0;font-size:18px;font-weight:600}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font:400 26px/1 var(--body);color:var(--muted)}.faq details[open] summary::after{content:"−";color:var(--mint)}
.faq details p{margin:0 0 22px;color:var(--muted);max-width:720px}

/* final cta */
.final{text-align:center;padding:64px 24px;border-radius:28px;border:1px solid #2EE6A640;
background:radial-gradient(120% 160% at 50% 0,#1C5C4C,var(--surface) 70%)}
.final p{margin:12px 0 28px;font-size:17px}

/* footer (also offer/privacy) */
footer{border-top:1px solid var(--line);margin-top:56px;padding:28px 0;color:var(--muted);font-size:14px}
footer .wrap{display:flex;align-items:center;gap:16px;flex-wrap:wrap}footer a{color:var(--muted);margin-right:18px}footer a:hover{color:var(--text)}
.foot .wrap{justify-content:space-between}.foot nav a{margin:0 0 0 22px}.logo.sm{font-size:16px}

/* documents: offer / privacy */
.note{color:var(--muted);font-size:14px}
.doc{padding-top:48px;padding-bottom:60px;max-width:860px}.doc h1{font:700 32px/1.2 var(--head);margin:0 0 8px}.doc h2{font-size:20px;margin-top:32px;margin-bottom:8px;font-family:var(--body);letter-spacing:0}
.doc p,.doc li{color:#C9D0DE}
.req{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 22px}
table{width:100%;border-collapse:collapse;margin:16px 0}td,th{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left}th{color:var(--muted);font-weight:500}

@media (max-width:1000px){
  .hero{grid-template-columns:1fr;gap:40px;padding-top:56px;padding-bottom:64px}
  .features{grid-template-columns:repeat(2,1fr)}
  .plans{grid-template-columns:1fr;max-width:520px}.plan.hot{transform:none;order:-1}
  .steps{grid-template-columns:1fr}
  .nav .links{display:none}
}
@media (max-width:640px){
  .wrap{padding:0 20px}
  header .wrap{height:64px}header nav a{margin-left:14px;font-size:14px}
  .hide-m{display:none}.show-m{display:inline}
  .hero{padding-top:40px}.lead{font-size:16px}
  .cta-row .btn{width:100%}
  .features{grid-template-columns:1fr;gap:12px}.feature{display:grid;grid-template-columns:auto 1fr;column-gap:14px;padding:18px}.feature .ibox{grid-row:span 2;width:40px;height:40px}.feature h3{margin:0;font-size:16px}.feature p{margin-top:4px;font-size:14px}
  .seg{width:100%}.seg button{flex:1;padding:10px 0}
  .plan{padding:22px}.price .v{font-size:32px}
  .section{padding-top:40px;padding-bottom:40px}
  .faq summary{font-size:16px;padding:18px 0}
  .final{padding:40px 20px}
  .foot .wrap{flex-direction:column;align-items:flex-start}.foot nav a{margin:0 18px 0 0}
}