:root{
  --bg: #060a13;
  --bg-alt: #0a0f1e;
  --panel: #0d1526;
  --panel-2: #101b30;
  --line: #1c2a44;
  --blue: #3fd0ff;
  --blue-2: #2a8fd6;
  --yellow: #ffd23f;
  --green: #4dffa0;
  --red: #ff5c6c;
  --ink: #e9f1ff;
  --ink-dim: #8ba0c4;
  --ink-dimmer: #56668a;
  --font-display: 'Orbitron', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --font-body: 'Rubik', sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3{font-family:var(--font-display);margin:0 0 .4em;letter-spacing:.02em;}
p{line-height:1.6;color:var(--ink-dim);margin:0 0 1em;}
code{font-family:var(--font-mono);}
.hidden{display:none !important;}

/* ===== BOOT SCREEN ===== */
.boot-screen{
  position:fixed;inset:0;z-index:999;
  background:radial-gradient(ellipse at center, #0a1526 0%, #04070d 100%);
  color:var(--green);
  font-family:var(--font-mono);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  cursor:pointer;
  transition:opacity .5s ease, visibility .5s ease;
}
.boot-screen.boot-hide{opacity:0;visibility:hidden;pointer-events:none;}
.boot-scanline{
  position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(180deg, rgba(255,255,255,.025) 0px, rgba(255,255,255,.025) 1px, transparent 1px, transparent 3px);
  mix-blend-mode:overlay;
}
.boot-content{max-width:640px;width:90%;text-align:left;}
.boot-logo{font-family:var(--font-display);font-size:clamp(1.6rem,5vw,2.4rem);color:var(--blue);margin-bottom:1.2em;text-shadow:0 0 18px rgba(63,208,255,.5);}
.boot-cursor{animation:blink 1s steps(1) infinite;color:var(--yellow);}
.boot-log{white-space:pre-wrap;font-size:.85rem;line-height:1.7;min-height:220px;margin:0;}
.boot-prompt{margin-top:1.5em;text-align:center;}
.boot-key{display:block;color:var(--yellow);font-weight:700;letter-spacing:.05em;animation:pulse 1.4s ease-in-out infinite;}
.boot-sub{display:block;color:var(--ink-dimmer);margin-top:.3em;font-size:.8rem;}
.boot-footer{position:absolute;bottom:1.2em;font-size:.65rem;color:var(--ink-dimmer);letter-spacing:.03em;text-align:center;padding:0 1em;}
@keyframes blink{50%{opacity:0;}}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.4;}}

/* ===== NAV ===== */
.nav{
  position:sticky;top:0;z-index:100;
  background:rgba(6,10,19,.85);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  max-width:1200px;margin:0 auto;padding:.9em 1.4em;
  display:flex;align-items:center;justify-content:space-between;gap:1em;
}
.nav-brand{font-family:var(--font-display);font-weight:800;font-size:1.1rem;color:var(--blue);display:flex;align-items:center;gap:.4em;}
.nav-links{display:flex;gap:1.6em;}
.nav-links a{font-size:.85rem;color:var(--ink-dim);font-weight:500;transition:color .15s;}
.nav-links a:hover{color:var(--blue);}
.nav-actions{display:flex;align-items:center;gap:.7em;}
.icon-btn{
  background:var(--panel);border:1px solid var(--line);color:var(--ink);
  width:2.2em;height:2.2em;border-radius:8px;cursor:pointer;font-size:1rem;
}
.nav-ca{font-family:var(--font-mono);font-size:.72rem;padding:.5em .8em;display:flex;align-items:center;gap:.5em;}
.nav-ca .dot{width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green);}
.hamburger{display:none;flex-direction:column;gap:4px;background:none;border:none;cursor:pointer;padding:.4em;}
.hamburger span{width:22px;height:2px;background:var(--ink);display:block;}

/* ===== BUTTONS ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.4em;
  padding:.75em 1.3em;border-radius:9px;font-weight:600;font-size:.88rem;
  border:1px solid transparent;cursor:pointer;transition:transform .12s, filter .12s, background .15s;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-1px);}
.btn-primary{background:linear-gradient(135deg,var(--blue),var(--blue-2));color:#031018;box-shadow:0 8px 24px -8px rgba(63,208,255,.6);}
.btn-outline{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-outline:hover{border-color:var(--blue);color:var(--blue);}
.btn-ghost{background:var(--panel);border-color:var(--line);color:var(--ink);}
.btn-small{padding:.4em .8em;font-size:.75rem;background:var(--panel-2);border-color:var(--line);color:var(--blue);}

/* ===== HERO ===== */
.hero{padding:3.5em 1.4em 2em;}
.hero-inner{
  max-width:1200px;margin:0 auto;
  display:grid;grid-template-columns:1.05fr .95fr;gap:3em;align-items:center;
}
.hud-frame{
  position:relative;border-radius:16px;overflow:hidden;
  border:2px solid var(--blue-2);background:#000;
  box-shadow:0 0 0 1px rgba(63,208,255,.15), 0 20px 60px -20px rgba(0,0,0,.8);
}
.hud-image{width:100%;height:auto;display:block;background:#fff;}
.hud-corner{position:absolute;width:22px;height:22px;border:3px solid var(--yellow);z-index:3;}
.hud-corner.tl{top:8px;left:8px;border-right:none;border-bottom:none;}
.hud-corner.tr{top:8px;right:8px;border-left:none;border-bottom:none;}
.hud-corner.bl{bottom:8px;left:8px;border-right:none;border-top:none;}
.hud-corner.br{bottom:8px;right:8px;border-left:none;border-top:none;}
.hud-scanline{
  position:absolute;inset:0;z-index:2;pointer-events:none;
  background:repeating-linear-gradient(180deg, rgba(63,208,255,.05) 0px, rgba(63,208,255,.05) 1px, transparent 1px, transparent 3px);
}
.hud-topbar,.hud-bottombar{
  position:absolute;left:0;right:0;z-index:3;
  display:flex;justify-content:space-between;gap:.5em;
  font-family:var(--font-mono);font-size:.68rem;color:var(--green);
  padding:.5em .8em;background:linear-gradient(180deg, rgba(0,0,0,.75), transparent);
}
.hud-topbar{top:0;}
.hud-bottombar{bottom:0;background:linear-gradient(0deg, rgba(0,0,0,.85), transparent);}
.hud-bottombar b{color:var(--yellow);}
.hud-bottombar b.ok{color:var(--green);}
.hud-topbar .rec{color:var(--red);font-weight:700;}
.hud-box{position:absolute;border:2px solid var(--green);z-index:2;pointer-events:none;}
.hud-box.box-phone{border-color:var(--yellow);}
.hud-box.box-bot{border-color:var(--blue);}
.hud-tag{
  position:absolute;top:-1.6em;left:-2px;
  background:var(--green);color:#04140b;
  font-family:var(--font-mono);font-size:.6rem;font-weight:700;
  padding:.15em .4em;white-space:nowrap;
}
.hud-box.box-phone .hud-tag{background:var(--yellow);color:#231a00;}
.hud-box.box-bot .hud-tag{background:var(--blue);color:#04141d;top:auto;bottom:-1.6em;}
.hero-caption{margin-top:1em;font-family:var(--font-mono);font-size:.78rem;color:var(--ink-dimmer);text-align:center;}

.hero-copy{max-width:560px;}
.badge{
  display:inline-block;font-family:var(--font-mono);font-size:.72rem;color:var(--yellow);
  border:1px solid rgba(255,210,63,.35);background:rgba(255,210,63,.08);
  padding:.4em .8em;border-radius:100px;margin-bottom:1.1em;
}
.hero-copy h1{
  font-size:clamp(2.6rem,6vw,4.2rem);color:var(--ink);
  background:linear-gradient(135deg,#fff,var(--blue) 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  line-height:1;margin-bottom:.3em;
}
.tagline{font-size:1.15rem;color:var(--ink);font-weight:500;margin-bottom:.5em;}
.subtag{font-family:var(--font-mono);font-size:.82rem;color:var(--blue);margin-bottom:1.6em;}
.ca-row{
  display:flex;align-items:center;gap:.7em;flex-wrap:wrap;
  background:var(--panel);border:1px solid var(--line);border-radius:10px;
  padding:.7em 1em;margin-bottom:1.4em;font-family:var(--font-mono);
}
.ca-label{font-size:.68rem;color:var(--ink-dimmer);letter-spacing:.08em;}
.ca-row code{font-size:.82rem;color:var(--ink);word-break:break-all;flex:1;}
.cta-row{display:flex;flex-wrap:wrap;gap:.7em;margin-bottom:1.6em;}
.ticker-strip{overflow:hidden;border-top:1px solid var(--line);padding-top:1em;}
.ticker-track{display:flex;gap:2.5em;font-family:var(--font-mono);font-size:.75rem;color:var(--ink-dimmer);white-space:nowrap;animation:scrollTicker 22s linear infinite;}
@keyframes scrollTicker{from{transform:translateX(0);}to{transform:translateX(-50%);}}

/* ===== SECTIONS ===== */
.section{padding:5em 1.4em;}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-inner{max-width:1100px;margin:0 auto;}
.section-head{margin-bottom:2.4em;max-width:680px;}
.kicker{font-family:var(--font-mono);font-size:.75rem;color:var(--blue);letter-spacing:.08em;}
.section-head h2{font-size:clamp(1.6rem,3.4vw,2.3rem);color:var(--ink);margin-top:.3em;}
.section-sub{color:var(--ink-dim);margin-top:.4em;}

/* briefing */
.briefing{
  background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:1.6em 1.8em;font-family:var(--font-mono);font-size:.9rem;
}
.briefing-line{display:flex;gap:1em;padding:.6em 0;border-bottom:1px dashed var(--line);color:var(--ink-dim);}
.briefing-line:last-child{border-bottom:none;}
.briefing-line .ln{color:var(--ink-dimmer);flex-shrink:0;}
.briefing-line.highlight{color:var(--yellow);font-weight:600;}
.disclaimer-inline{font-size:.78rem;margin-top:1.2em;color:var(--ink-dimmer);}

/* features */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2em;}
.feature-card{
  background:var(--panel);border:1px solid var(--line);border-radius:14px;
  padding:1.6em 1.4em;transition:transform .15s, border-color .15s;
}
.feature-card:hover{transform:translateY(-4px);border-color:var(--blue-2);}
.feature-icon{font-size:1.8rem;margin-bottom:.4em;}
.feature-eyebrow{font-family:var(--font-mono);font-size:.68rem;color:var(--ink-dimmer);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.5em;}
.feature-card h3{font-size:1.05rem;color:var(--green);margin-bottom:.5em;}
.feature-card p{font-size:.88rem;margin:0;}

/* telemetry */
.telemetry-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:1em;margin-bottom:2em;}
.telemetry-card{
  background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:1.2em;text-align:center;
}
.t-label{display:block;font-family:var(--font-mono);font-size:.65rem;color:var(--ink-dimmer);letter-spacing:.06em;margin-bottom:.5em;}
.t-value{display:block;font-family:var(--font-mono);font-size:1.15rem;color:var(--blue);font-weight:700;}
.gauge-row{display:grid;grid-template-columns:repeat(2,1fr);gap:1.4em;}
.gauge-label{display:flex;justify-content:space-between;font-family:var(--font-mono);font-size:.75rem;color:var(--ink-dim);margin-bottom:.4em;}
.gauge-bar{height:8px;background:var(--panel-2);border-radius:100px;overflow:hidden;border:1px solid var(--line);}
.gauge-fill{height:100%;background:linear-gradient(90deg,var(--green),var(--blue));border-radius:100px;}
.gauge-fill.gauge-empty{background:var(--line);}
.gauge-fill.gauge-pulse{animation:pulseWidth 2.4s ease-in-out infinite;}
@keyframes pulseWidth{0%,100%{opacity:.6;}50%{opacity:1;}}

/* specs */
.spec-columns{display:grid;grid-template-columns:1fr 1fr;gap:2em;}
.spec-block{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:1.6em 1.8em;}
.spec-block h3{color:var(--yellow);font-size:1rem;margin-bottom:1em;}
.spec-list div{display:flex;justify-content:space-between;gap:1em;padding:.55em 0;border-bottom:1px dashed var(--line);font-family:var(--font-mono);font-size:.82rem;}
.spec-list div:last-child{border-bottom:none;}
.spec-list dt{color:var(--ink-dimmer);}
.spec-list dd{margin:0;color:var(--ink);text-align:right;}

/* steps */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2em;}
.step-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:1.6em 1.4em;position:relative;}
.step-num{font-family:var(--font-display);font-size:1.6rem;color:var(--blue-2);opacity:.5;}
.step-card h3{font-size:1rem;margin:.4em 0 .5em;color:var(--ink);}
.step-card p{font-size:.85rem;margin:0;}

/* faq */
.faq-list{display:flex;flex-direction:column;gap:.7em;}
.faq-item{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:1em 1.3em;}
.faq-item summary{cursor:pointer;font-weight:600;color:var(--ink);list-style:none;position:relative;padding-right:1.5em;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:'+';position:absolute;right:0;top:0;color:var(--blue);font-size:1.2rem;}
.faq-item[open] summary::after{content:'−';}
.faq-item p{margin-top:.8em;font-size:.9rem;}

/* footer */
.footer{border-top:1px solid var(--line);padding:3em 1.4em 2em;background:var(--bg-alt);}
.footer-inner{max-width:1100px;margin:0 auto;text-align:center;}
.footer-brand{font-family:var(--font-display);color:var(--blue);font-weight:800;margin-bottom:1em;}
.footer-links{display:flex;justify-content:center;gap:1.6em;margin-bottom:1.6em;font-size:.85rem;color:var(--ink-dim);}
.footer-links a:hover{color:var(--blue);}
.footer-fine{font-size:.72rem;color:var(--ink-dimmer);max-width:720px;margin:0 auto;line-height:1.7;}

/* toast */
.toast{
  position:fixed;bottom:1.6em;left:50%;transform:translateX(-50%) translateY(20px);
  background:var(--panel-2);border:1px solid var(--blue-2);color:var(--ink);
  padding:.8em 1.4em;border-radius:10px;font-size:.85rem;font-family:var(--font-mono);
  opacity:0;pointer-events:none;transition:opacity .25s, transform .25s;z-index:200;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0);}

/* ===== RESPONSIVE ===== */
@media (max-width: 980px){
  .hero-inner{grid-template-columns:1fr;}
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .telemetry-grid{grid-template-columns:repeat(2,1fr);}
  .spec-columns{grid-template-columns:1fr;}
  .steps-grid{grid-template-columns:repeat(2,1fr);}
  .gauge-row{grid-template-columns:1fr;}
}
@media (max-width: 680px){
  .nav-links{
    position:fixed;top:64px;left:0;right:0;height:100vh;
    background:var(--bg);flex-direction:column;padding:2em 1.6em;gap:1.4em;
    transform:translateX(100%);transition:transform .25s;z-index:90;
    overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-links a{font-size:1.1rem;}
  .hamburger{display:flex;}
  .nav-ca span:not(.dot){display:none;}
  .feature-grid,.telemetry-grid,.steps-grid{grid-template-columns:1fr;}
  .cta-row{flex-direction:column;}
  .cta-row .btn{width:100%;}
}