/* ---------- hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  padding:96px 0 110px;
  border-bottom:1px solid var(--ink-700);
}
.hero .wrap{
  position:relative;z-index:2;
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:40px;
  align-items:center;
}
.hero h1{
  font-size:clamp(34px,4.6vw,58px);
  max-width:12.5ch;
}
.hero h1 .hl{color:var(--signal-400);}
.hero p.lead{
  font-size:18px;color:var(--paper-300);
  max-width:46ch;margin:18px 0 30px;
}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;align-items:center;}
.hero-note{
  margin-top:16px;font-family:var(--font-mono);font-size:12.5px;
  color:var(--ink-600);
}

/* radar signature */
.radar-scope{
  position:relative;
  aspect-ratio:1/1;
  max-width:420px;
  margin:0 auto;
  border-radius:50%;
  background:
    radial-gradient(circle at 50% 50%, rgba(76,255,192,.10), transparent 65%),
    var(--ink-850);
  border:1px solid var(--ink-700);
}
.radar-scope::before,
.radar-scope::after{
  content:"";position:absolute;border-radius:50%;
  border:1px solid var(--ink-700);
}
.radar-scope::before{inset:14%;}
.radar-scope::after{inset:32%;}
.radar-ring-inner{
  position:absolute;inset:50%;
  width:1px;height:1px;
}
.radar-crosshair{
  position:absolute;inset:0;
}
.radar-crosshair::before,.radar-crosshair::after{
  content:"";position:absolute;background:var(--ink-700);
}
.radar-crosshair::before{left:0;right:0;top:50%;height:1px;}
.radar-crosshair::after{top:0;bottom:0;left:50%;width:1px;}
.radar-sweep{
  position:absolute;inset:0;
  border-radius:50%;
  background:conic-gradient(from 0deg, rgba(76,255,192,.55), rgba(76,255,192,0) 28%);
  animation:sweep 4.5s linear infinite;
  mix-blend-mode:screen;
}
@keyframes sweep{to{transform:rotate(360deg);}}
.radar-blip{
  position:absolute;
  width:9px;height:9px;border-radius:50%;
  background:var(--amber-400);
  box-shadow:0 0 0 5px rgba(255,180,84,.16);
  animation:blip 4.5s ease-in-out infinite;
  opacity:0;
}
.radar-blip.b1{top:28%;left:64%;animation-delay:.4s;}
.radar-blip.b2{top:62%;left:32%;animation-delay:2s;}
.radar-blip.b3{top:70%;left:66%;animation-delay:3.1s;}
@keyframes blip{
  0%,100%{opacity:0;transform:scale(.6);}
  8%{opacity:1;transform:scale(1);}
  22%{opacity:0;transform:scale(.6);}
}
.radar-label{
  position:absolute;left:50%;bottom:-38px;transform:translateX(-50%);
  font-family:var(--font-mono);font-size:11.5px;color:var(--ink-600);
  letter-spacing:.1em;text-transform:uppercase;white-space:nowrap;
}

@media (max-width:900px){
  .hero .wrap{grid-template-columns:1fr;}
  .radar-scope{max-width:280px;margin-top:20px;}
}

/* ---------- mission ---------- */
.mission{padding:100px 0;border-bottom:1px solid var(--ink-700);}
.mission .grid{
  display:grid;grid-template-columns:1fr 1fr;gap:60px;
}
.mission h2{font-size:clamp(26px,3vw,36px);max-width:14ch;}
.mission .lead{color:var(--paper-300);font-size:17px;max-width:44ch;}
.mission-points{display:flex;flex-direction:column;gap:26px;}
.mission-point{
  display:flex;gap:16px;padding-bottom:26px;
  border-bottom:1px solid var(--ink-700);
}
.mission-point:last-child{border-bottom:none;padding-bottom:0;}
.mission-point .num{
  font-family:var(--font-mono);color:var(--signal-400);font-size:13px;flex:none;
  width:26px;padding-top:3px;
}
.mission-point h3{font-family:var(--font-body);font-weight:600;font-size:16.5px;margin-bottom:4px;}
.mission-point p{color:var(--paper-300);font-size:14.5px;margin:0;}

@media (max-width:820px){
  .mission .grid{grid-template-columns:1fr;gap:36px;}
}

/* ---------- topics ---------- */
.topics{padding:100px 0;border-bottom:1px solid var(--ink-700);}
.section-head{
  display:flex;justify-content:space-between;align-items:flex-end;
  gap:24px;margin-bottom:44px;flex-wrap:wrap;
}
.section-head h2{font-size:clamp(26px,3vw,34px);max-width:16ch;margin:0;}
.section-head p{color:var(--paper-300);max-width:40ch;margin:10px 0 0;font-size:15px;}

.topic-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.topic-card{
  background:var(--ink-800);
  border:1px solid var(--ink-700);
  border-radius:var(--radius);
  padding:28px 26px 26px;
  display:flex;flex-direction:column;
  min-height:250px;
  transition:border-color .15s ease, transform .15s ease;
}
.topic-card:hover{border-color:var(--ink-600);transform:translateY(-2px);}
.topic-card .icon{
  width:40px;height:40px;margin-bottom:22px;
  color:var(--signal-400);
}
.topic-card .status{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  padding:4px 10px;border-radius:999px;
  align-self:flex-start;margin-bottom:14px;
}
.status.live{background:rgba(76,255,192,.12);color:var(--signal-400);}
.status.soon{background:rgba(146,163,196,.10);color:var(--paper-300);}
.topic-card h3{font-size:20px;margin-bottom:8px;}
.topic-card p{color:var(--paper-300);font-size:14.5px;margin:0 0 20px;flex:1;}
.topic-card .go{
  font-family:var(--font-mono);font-size:13px;color:var(--paper-50);
  display:inline-flex;align-items:center;gap:8px;
}
.topic-card .go svg{transition:transform .15s ease;}
.topic-card:hover .go svg{transform:translateX(3px);}
.topic-card.disabled .go{color:var(--ink-600);}

@media (max-width:900px){.topic-grid{grid-template-columns:1fr;}}

/* ---------- how it works ---------- */
.how{padding:100px 0;border-bottom:1px solid var(--ink-700);}
.how-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
  counter-reset:step;
}
.how-step{
  padding:28px 24px;border-radius:var(--radius);
  background:var(--ink-800);border:1px solid var(--ink-700);
  position:relative;
}
.how-step .step-num{
  font-family:var(--font-mono);font-size:13px;color:var(--ink-600);
  margin-bottom:22px;
}
.how-step .step-num b{color:var(--signal-400);}
.how-step h3{font-size:18px;margin-bottom:8px;}
.how-step p{color:var(--paper-300);font-size:14.5px;margin:0;}
.how-arrow{
  display:none;
}
@media (max-width:900px){.how-grid{grid-template-columns:1fr;}}

/* ---------- final cta ---------- */
.cta-band{
  padding:90px 0 110px;
  text-align:center;
}
.cta-band h2{font-size:clamp(28px,4vw,42px);max-width:20ch;margin:0 auto 14px;}
.cta-band p{color:var(--paper-300);max-width:46ch;margin:0 auto 34px;font-size:16.5px;}