:root{
  --bg:#06121a;--bg2:#0a1b26;--card:#0e2230;--line:#18344a;
  --text:#e6f1f7;--muted:#86a3b5;--accent:#2ee6c5;--accent2:#1fb5ff;
  --red:#ff5d73;--radius:14px;
  --mono:"JetBrains Mono",ui-monospace,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font:16px/1.6 Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.narrow{max-width:760px}
.center{text-align:center}
.muted{color:var(--muted)}
.small{font-size:.875rem;margin-top:14px}
.accent{color:var(--accent)}

/* nav */
.nav{position:sticky;top:0;z-index:10;background:rgba(6,18,26,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:600;font-size:1.1rem;color:var(--text)}
.logo svg{width:28px;height:28px;color:var(--accent)}
.logo b{color:var(--accent);font-weight:700}
.links{display:flex;align-items:center;gap:24px;font-size:.95rem}
.links a:not(.btn){color:var(--muted)}
.links a:not(.btn):hover{color:var(--text)}

/* buttons */
.btn{display:inline-block;padding:13px 22px;border-radius:10px;background:var(--accent);color:#04211c;font-weight:600;transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-1px);box-shadow:0 8px 24px -8px rgba(46,230,197,.6)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--accent);box-shadow:none}
.btn-sm{padding:8px 14px;font-size:.9rem}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}

/* hero */
.hero{padding:72px 0 64px;background:radial-gradient(900px 420px at 80% 10%,rgba(31,181,255,.12),transparent 60%),radial-gradient(700px 400px at 10% 90%,rgba(46,230,197,.08),transparent 60%)}
.hero-in{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.eyebrow{font-family:var(--mono);font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
h1{font-size:clamp(2.1rem,4.6vw,3.4rem);line-height:1.1;letter-spacing:-.025em;font-weight:700}
h2{font-size:clamp(1.6rem,3vw,2.2rem);letter-spacing:-.02em;line-height:1.2;margin-bottom:10px}
h3{font-size:1.08rem;font-weight:600}
.lead{font-size:1.12rem;color:var(--muted);margin-top:20px;max-width:560px}
.sub{color:var(--muted);margin-bottom:32px}

.hero-visual{position:relative;display:flex;justify-content:center;align-items:center;min-height:380px}
.sonar{position:absolute;width:380px;height:380px;border-radius:50%;overflow:hidden}
.sonar i{position:absolute;inset:0;border:1px solid rgba(46,230,197,.18);border-radius:50%}
.sonar i:nth-child(2){inset:60px}.sonar i:nth-child(3){inset:120px}
.sweep{position:absolute;inset:0;border-radius:50%;background:conic-gradient(from 0deg,rgba(46,230,197,.28),transparent 22%);animation:spin 4s linear infinite}
.blip{position:absolute;width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent);animation:blip 4s infinite}
.b1{top:22%;left:68%}.b2{top:70%;left:24%;animation-delay:1.6s;background:var(--red);box-shadow:0 0 12px var(--red)}.b3{top:58%;left:78%;animation-delay:2.8s}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes blip{0%,70%,100%{opacity:.15}80%{opacity:1}}
@media (prefers-reduced-motion:reduce){.sweep,.blip{animation:none}}

/* alert card */
.alert{position:relative;width:100%;max-width:340px;background:linear-gradient(180deg,#112a3a,#0c1f2c);border:1px solid var(--line);border-radius:var(--radius);padding:18px 18px 14px;font-family:var(--mono);font-size:.86rem;box-shadow:0 24px 60px -20px rgba(0,0,0,.6)}
.alert figcaption{position:absolute;top:-10px;left:16px;background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:1px 10px;font-size:.7rem;color:var(--muted);font-family:Inter,sans-serif}
.al-head{font-weight:500;color:var(--accent);margin-bottom:10px}
.al-row{display:flex;justify-content:space-between;gap:12px;padding:5px 0;border-bottom:1px dashed rgba(134,163,181,.15)}
.al-row span{color:var(--muted)}.al-row b{font-weight:500;text-align:right}
.al-foot{margin-top:10px;color:#ffd27a;font-size:.8rem}

/* strip */
.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg2)}
.strip-in{display:grid;grid-template-columns:repeat(4,1fr);text-align:center;padding:26px 20px}
.strip b{display:block;font-size:1.8rem;font-weight:700;color:var(--accent)}
.strip span{color:var(--muted);font-size:.9rem}

/* sections */
.sec{padding:84px 0}
.alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.card{display:flex;flex-direction:column;gap:8px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--accent);transform:translateY(-2px)}
.card p{color:var(--muted);font-size:.94rem;flex:1}
.card-top{display:flex;flex-direction:column-reverse;align-items:flex-start;gap:8px}
.tag{font-size:.68rem;white-space:nowrap;padding:2px 8px;border-radius:999px;background:rgba(46,230,197,.12);color:var(--accent)}
.more{color:var(--accent);font-size:.9rem;font-weight:500}
.card.mini{padding:18px}

.how{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:start}
.steps{list-style:none;counter-reset:s;margin-top:24px;display:grid;gap:18px}
.steps li{counter-increment:s;position:relative;padding-left:52px;color:var(--muted)}
.steps li b{color:var(--text)}
.steps li::before{content:counter(s);position:absolute;left:0;top:-2px;width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:var(--card);border:1px solid var(--line);color:var(--accent);font-family:var(--mono)}
.oss{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.oss p{color:var(--muted);margin:10px 0 20px}

/* pricing */
.prices{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.price{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;display:flex;flex-direction:column}
.price.hot{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent),0 20px 60px -30px rgba(46,230,197,.5)}
.badge{position:absolute;top:-11px;right:20px;background:var(--accent);color:#04211c;font-size:.72rem;font-weight:700;padding:2px 10px;border-radius:999px}
.amt{font-size:2.4rem;font-weight:700;margin:8px 0 16px}
.amt small{font-size:1rem;color:var(--muted);font-weight:400}
.price ul{list-style:none;display:grid;gap:8px;margin-bottom:24px;flex:1}
.price li,.ticks li{padding-left:26px;position:relative;color:var(--muted)}
.price li::before,.ticks li::before{content:"";position:absolute;left:2px;top:9px;width:12px;height:7px;border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg)}
.price .btn{text-align:center}

/* faq */
.faq{display:grid;gap:10px;margin-top:24px}
details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 20px}
summary{cursor:pointer;font-weight:500;list-style:none;display:flex;justify-content:space-between;gap:12px}
summary::after{content:"+";color:var(--accent);font-family:var(--mono)}
details[open] summary::after{content:"−"}
details p{color:var(--muted);margin-top:10px}

.final{background:radial-gradient(600px 300px at 50% 100%,rgba(46,230,197,.1),transparent 70%)}

/* bot page */
.bot-hero{padding-top:56px}
.bot-in{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:center}
.crumbs{font-size:.85rem;color:var(--muted);margin-bottom:14px}
.crumbs a:hover{color:var(--accent)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.two p{color:var(--muted);margin-top:12px;font-size:1.05rem}
.ticks{list-style:none;display:grid;gap:10px;margin-top:16px}

/* footer */
.foot{border-top:1px solid var(--line);padding:48px 0 24px}
.foot-in{display:grid;grid-template-columns:1fr 1.6fr;gap:40px}
.foot-in p{margin-top:12px;font-size:.9rem}
.foot-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.foot-cols h4{font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:10px}
.foot-cols a{display:block;font-size:.9rem;padding:3px 0}
.foot-cols a:hover{color:var(--accent)}
.legal{font-size:.8rem;margin-top:32px;padding-top:20px;border-top:1px solid var(--line)}

@media (max-width:860px){
  .hero-in,.how,.bot-in,.two,.foot-in{grid-template-columns:1fr}
  .hero-visual{min-height:340px}
  .sonar{width:320px;height:320px}
  .prices{grid-template-columns:1fr}
  .strip-in{grid-template-columns:repeat(2,1fr);gap:18px}
  .links a:not(.btn){display:none}
  .sec{padding:60px 0}
  .foot-cols{grid-template-columns:1fr 1fr}
}
@media (max-width:420px){.wrap{padding:0 16px}.sonar{width:280px;height:280px}}
.plan{font-size:1.08rem;font-weight:600}
.lead-strong{color:var(--text);font-weight:600}