:root{
  --bg:#0e1420; --bg-2:#131b2a; --panel:#18223400; --card:#172133; --line:#243149;
  --text:#e9ecef; --muted:#9aa6b8; --teal:#1fd1c1; --teal-d:#14a99c; --warn:#f2c66d;
  --radius:14px; --head:"Space Grotesk",system-ui,sans-serif; --body:"IBM Plex Sans",system-ui,sans-serif; --mono:"IBM Plex Mono",ui-monospace,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--teal)}
.wrap{max-width:1120px;margin:0 auto;padding:0 22px}
.narrow{max-width:780px}
.mono{font-family:var(--mono);font-size:.92em}
h1,h2,h3,h4{font-family:var(--head);line-height:1.15;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2.1rem,5vw,3.4rem)}
h2{font-size:clamp(1.6rem,3.4vw,2.3rem)}
h3{font-size:1.2rem}
.accent{color:var(--teal)}
.eyebrow{font-family:var(--mono);font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--teal);margin:0 0 .8em}

.preview-banner{position:sticky;top:0;z-index:60;background:var(--warn);color:#1b1505;text-align:center;font:600 .82rem/1 var(--mono);letter-spacing:.06em;padding:9px 12px}
.site-header{position:sticky;top:33px;z-index:50;background:rgba(14,20,32,.88);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{display:flex;align-items:center;gap:9px;font:700 1.25rem var(--head);color:var(--text);text-decoration:none}
.logo-mark{display:grid;place-items:center;width:30px;height:30px;border-radius:8px;background:var(--teal);color:#06201d;font-size:1.05rem}
.logo-tag{font:500 .62rem var(--mono);color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:2px 7px;text-transform:uppercase;letter-spacing:.08em}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{color:var(--muted);text-decoration:none;font-weight:500;font-size:.95rem}
.nav-links a:hover{color:var(--text)}
.nav-toggle{display:none;background:none;border:1px solid var(--line);color:var(--text);font-size:1.2rem;border-radius:8px;padding:4px 10px;cursor:pointer}

.btn{display:inline-block;background:var(--teal);color:#06201d !important;font-weight:600;text-decoration:none;padding:12px 22px;border-radius:10px;border:1px solid var(--teal);cursor:pointer;font-family:var(--body);font-size:1rem;transition:background .15s,transform .15s}
.btn:hover{background:var(--teal-d);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--text) !important;border-color:var(--line)}
.btn-ghost:hover{background:var(--bg-2);border-color:var(--teal)}
.btn-small{padding:8px 16px;font-size:.9rem}

.hero{padding:90px 0 80px;background:radial-gradient(900px 420px at 85% 10%,rgba(31,209,193,.10),transparent 60%),linear-gradient(180deg,var(--bg),var(--bg-2))}
.hero-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:56px;align-items:center}
.lead{font-size:1.13rem;color:var(--muted);max-width:560px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0 22px}
.hero-points{list-style:none;padding:0;margin:0;display:flex;gap:22px;flex-wrap:wrap;color:var(--muted);font-size:.92rem}
.hero-points li::before{content:"✓ ";color:var(--teal);font-weight:700}
.hero-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 20px 60px rgba(0,0,0,.35)}
.hc-head{display:flex;align-items:center;gap:8px;font-family:var(--head);font-weight:600;margin-bottom:12px}
.hc-head .tag{margin-left:auto}
.dot{width:9px;height:9px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 4px rgba(31,209,193,.15)}
dl{margin:0}
dl>div{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:.93rem}
dl>div:last-child{border-bottom:0}
dt{color:var(--muted)}
dd{margin:0;text-align:right;word-break:break-all}
.pill{background:rgba(242,198,109,.14);color:var(--warn);padding:2px 9px;border-radius:999px;font-size:.8rem}
.hc-note{font-size:.8rem;color:var(--muted);margin:12px 0 0}
.tag{display:inline-block;font:600 .66rem var(--mono);letter-spacing:.1em;color:var(--warn);border:1px solid rgba(242,198,109,.45);border-radius:6px;padding:2px 6px;vertical-align:middle}

.section{padding:86px 0}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-lead{color:var(--muted);max-width:640px}

.steps{list-style:none;padding:0;margin:36px 0 0;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:s}
.steps li{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.steps p{color:var(--muted);margin:0;font-size:.95rem}
.step-n{display:block;font:500 .85rem var(--mono);color:var(--teal);margin-bottom:14px}

.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:34px 0 18px}
.card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;display:flex;flex-direction:column}
.card .tag{position:absolute;top:18px;right:18px}
.card-featured{border-color:var(--teal);box-shadow:0 0 0 1px var(--teal) inset}
.spec{font-family:var(--mono);color:var(--muted);margin:0 0 14px}
.price{font:600 1.5rem var(--head);margin:0 0 16px}
.card ul{list-style:none;padding:0;margin:0 0 22px;color:var(--muted);font-size:.93rem;flex:1}
.card li{padding:5px 0}
.card li::before{content:"— ";color:var(--teal)}
.card .btn{text-align:center}
.fine{font-size:.85rem;color:var(--muted)}

.disabled-banner{background:rgba(242,198,109,.1);border:1px solid rgba(242,198,109,.45);color:var(--warn);border-radius:10px;padding:12px 16px;font-weight:500;margin:20px 0 26px}
.order{display:grid;gap:22px}
fieldset{border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin:0;background:var(--card)}
legend{font:600 1.05rem var(--head);padding:0 8px;display:flex;align-items:center;gap:10px}
legend span{display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--teal);color:#06201d;font-size:.85rem}
legend small{font:400 .8rem var(--body);color:var(--muted)}
.row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:16px}
.row:has(.wide){grid-template-columns:3fr 1fr}
.row:nth-of-type(2){grid-template-columns:1fr 1fr}
label{display:flex;flex-direction:column;gap:7px;font-size:.88rem;font-weight:500;color:var(--muted)}
label em{font-style:normal;opacity:.7}
input,select{background:var(--bg);border:1px solid var(--line);color:var(--text);border-radius:9px;padding:11px 12px;font:400 .97rem var(--body);width:100%}
input:focus,select:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(31,209,193,.18)}
input.invalid{border-color:#e46b6b}
.inline{display:flex;gap:8px}
.inline select{max-width:110px}
.hint{font-size:.78rem;font-weight:400;color:var(--muted)}
.check{flex-direction:row;align-items:flex-start;gap:10px;font-weight:400;line-height:1.5}
.check input{width:auto;margin-top:4px;accent-color:var(--teal)}
.summary-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:22px}
.quote .btn{margin-top:18px}
.pay{border:1px dashed var(--line);border-radius:12px;padding:20px;text-align:center;opacity:.6}
.pay.ready{opacity:1}
.qr{width:120px;height:120px;margin:0 auto 12px;border-radius:10px;background:repeating-linear-gradient(45deg,#1d2a40 0 8px,#223150 8px 16px);display:grid;place-items:center;color:var(--muted);font:500 .8rem var(--mono)}
.pay-label{margin:0;color:var(--muted)}
.addr{background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:8px;word-break:break-all;margin:8px 0}
.pay-off{font:600 .72rem var(--mono);color:var(--warn);text-transform:uppercase;letter-spacing:.1em;margin:0}
.form-msg{margin:14px 0 0;font-size:.92rem;color:var(--teal)}
.form-msg.err{color:#e88}

details{border-bottom:1px solid var(--line);padding:4px 0}
summary{cursor:pointer;list-style:none;font:600 1.07rem var(--head);padding:16px 30px 16px 0;position:relative}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:4px;top:13px;color:var(--teal);font-size:1.4rem}
details[open] summary::after{content:"–"}
details p{color:var(--muted);margin:0 0 18px}

.disclaimer-block{padding:56px 0}
.disclaimer-block .wrap{border-left:3px solid var(--warn);padding-left:24px}
.disclaimer-block p{color:var(--muted)}

.site-footer{background:#0a0f18;border-top:1px solid var(--line);padding:56px 0 26px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px}
.site-footer h4{font-size:.95rem;margin-bottom:10px}
.muted{color:var(--muted)}
.small{font-size:.85rem}
.foot-bottom{border-top:1px solid var(--line);margin-top:36px;padding-top:20px;font-size:.8rem;color:var(--muted)}

@media (max-width:900px){
  .hero-grid,.summary-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .cards{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
}
@media (max-width:680px){
  .nav-toggle{display:block}
  .nav-links{display:none;position:absolute;top:66px;left:0;right:0;flex-direction:column;gap:0;background:var(--bg-2);border-bottom:1px solid var(--line);padding:8px 22px 18px}
  .nav-links.open{display:flex}
  .nav-links a{padding:10px 0;width:100%}
  .steps,.row,.row:has(.wide),.row:nth-of-type(2){grid-template-columns:1fr}
  .hero{padding:60px 0}
  .section{padding:64px 0}
  .logo-tag{display:none}
}