:root{
  --void: #05070d;
  --deep: #0a1120;
  --panel: #0d1526;
  --horizon: #122036;
  --ice: #e7f1ff;
  --silver: #93a1b8;
  --silver-dim: #5e6c82;
  --signal: #4a9dff;
  --signal-dim: #2a6bc4;
  --line: rgba(160,190,230,0.14);
  --line-bright: rgba(160,200,255,0.4);
}

*{ margin:0; padding:0; box-sizing:border-box; }

html{ scroll-behavior:smooth; }

body{
  background:var(--void);
  color:var(--ice);
  font-family:'Inter', sans-serif;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

::selection{ background:var(--signal-dim); color:#fff; }

a{ color:inherit; text-decoration:none; }

.eyebrow{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.72rem;
  letter-spacing:0.22em;
  text-transform:uppercase;
  color:var(--signal);
}

/* ============ HORIZON LINE — signature element ============ */
.horizon-line{
  position:relative;
  width:100%;
  height:1px;
  background:linear-gradient(90deg, transparent 0%, var(--line-bright) 50%, transparent 100%);
  overflow:visible;
}
.horizon-line::after{
  content:'';
  position:absolute;
  top:50%; left:-6px;
  width:12px; height:12px;
  transform:translateY(-50%);
  border-radius:50%;
  background:radial-gradient(circle, #fff 0%, var(--signal) 45%, transparent 75%);
  box-shadow:0 0 16px 4px rgba(74,157,255,0.6);
  animation:travel 7s linear infinite;
}
@keyframes travel{
  0%{ left:-2%; opacity:0; }
  8%{ opacity:1; }
  92%{ opacity:1; }
  100%{ left:102%; opacity:0; }
}
@media (prefers-reduced-motion: reduce){
  .horizon-line::after{ animation:none; opacity:0; }
}

/* ============ NAV ============ */
header{
  position:fixed; top:0; left:0; right:0; z-index:100;
  display:flex; align-items:center; justify-content:space-between;
  padding:22px 5vw;
  background:linear-gradient(180deg, rgba(5,7,13,0.85) 0%, rgba(5,7,13,0) 100%);
  backdrop-filter:blur(2px);
}
.brand{ display:flex; align-items:center; gap:12px; }
.brand-mark{
  width:34px; height:34px; position:relative; flex-shrink:0;
}
.brand-mark img{
  width:100%; height:100%; object-fit:contain;
  display:block;
}
.brand-name{
  font-family:'Space Grotesk', sans-serif;
  font-weight:600;
  font-size:1.05rem;
  letter-spacing:0.06em;
}
nav ul{ display:flex; gap:38px; list-style:none; }
nav a{
  font-size:0.88rem; color:var(--silver);
  transition:color 0.25s ease;
  position:relative;
}
nav a:hover{ color:var(--ice); }
.nav-cta{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.75rem;
  letter-spacing:0.08em;
  color:var(--void) !important;
  background:var(--ice);
  padding:9px 18px;
  border-radius:2px;
  border:none;
  cursor:pointer;
  transition:background 0.25s ease, transform 0.2s ease;
}
.nav-cta:hover{ background:var(--signal); transform:translateY(-1px); }

.nav-links-wrap{ display:flex; align-items:center; gap:38px; }

/* ============ HERO ============ */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  padding:0 5vw;
  background:
    linear-gradient(180deg, rgba(6,10,20,0.35) 0%, rgba(10,18,36,0.55) 55%, rgba(14,26,48,0.85) 100%),
    url('images/background.png');
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
}
.hero::before{
  content:'';
  position:absolute; inset:0;
  background:radial-gradient(ellipse 80% 60% at 50% 100%, rgba(74,157,255,0.10), transparent 70%);
  pointer-events:none;
}
.hero-grid{
  position:relative; z-index:2;
  display:grid;
  grid-template-columns:1fr 1fr;
  align-items:center;
  gap:40px;
  flex:1;
  padding-top:120px;
}
.hero-inner{
  max-width:620px;
}
.hero h1{
  font-family:'Space Grotesk', sans-serif;
  font-weight:600;
  font-size:clamp(2.6rem, 6vw, 4.6rem);
  line-height:1.05;
  letter-spacing:-0.01em;
  margin:22px 0 24px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(90deg, #fff, var(--signal));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero p{
  font-size:1.08rem;
  color:var(--silver);
  max-width:520px;
  line-height:1.65;
  margin-bottom:38px;
}
.hero-ctas{ display:flex; gap:16px; }

/* The terminal sits in the empty space on the right of the hero.
   It's always visible — see script.js for what runs inside it. */
.hero-terminal-wrap{
  display:flex;
  justify-content:center;
}
.btn-primary, .btn-ghost{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.8rem;
  letter-spacing:0.06em;
  padding:14px 26px;
  border-radius:2px;
  transition:all 0.25s ease;
  display:inline-flex;
  align-items:center;
  gap:10px;
  cursor:pointer;
  background-color:transparent;
}
.btn-primary{
  background:var(--signal);
  color:#04060b;
  font-weight:500;
  border:none;
}
.btn-primary:hover{ background:#6fb4ff; transform:translateY(-2px); box-shadow:0 8px 24px rgba(74,157,255,0.35); }
.btn-ghost{
  border:1px solid var(--line);
  color:var(--ice);
}
.btn-ghost:hover{ border-color:var(--line-bright); background:rgba(255,255,255,0.03); }

.hero-bottom{
  position:relative; z-index:2;
  padding-bottom:56px;
}

/* ============ ORBIT STATS ============ */
.stats{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  background:var(--deep);
}
.stat{
  padding:52px 5vw;
  border-right:1px solid var(--line);
}
.stat:last-child{ border-right:none; }
.stat .num{
  font-family:'Space Grotesk', sans-serif;
  font-size:2.6rem;
  font-weight:600;
  color:var(--ice);
}
.stat .num span{ color:var(--signal); }
.stat .label{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.72rem;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--silver-dim);
  margin-top:8px;
}

/* ============ SECTION SHARED ============ */
section{ position:relative; padding:120px 5vw; }
.section-head{ max-width:640px; margin-bottom:64px; }
.section-head h2{
  font-family:'Space Grotesk', sans-serif;
  font-size:clamp(1.9rem, 3.4vw, 2.6rem);
  font-weight:600;
  margin-top:14px;
  letter-spacing:-0.01em;
}
.section-head p{
  color:var(--silver);
  margin-top:18px;
  line-height:1.7;
  font-size:1.02rem;
}

/* ============ SYSTEMS (features) ============ */
.systems{ background:var(--void); }
.systems-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.system-card{
  background:var(--panel);
  padding:42px 34px;
  transition:background 0.3s ease;
}
.system-card:hover{ background:var(--horizon); }
.system-icon{
  width:42px; height:42px;
  margin-bottom:26px;
  color:var(--signal);
}
.system-card h3{
  font-family:'Space Grotesk', sans-serif;
  font-size:1.2rem;
  font-weight:600;
  margin-bottom:12px;
}
.system-card p{
  color:var(--silver);
  font-size:0.94rem;
  line-height:1.65;
}
.system-tag{
  display:inline-block;
  margin-top:20px;
  font-family:'IBM Plex Mono', monospace;
  font-size:0.68rem;
  letter-spacing:0.1em;
  color:var(--silver-dim);
}

/* ============ APPROACH ============ */
.approach{ background:var(--deep); }
.approach-grid{
  display:grid;
  grid-template-columns:0.9fr 1.1fr;
  gap:80px;
  align-items:start;
}
.approach-steps{ display:flex; flex-direction:column; }
.approach-step{
  display:flex; gap:26px;
  padding:30px 0;
  border-top:1px solid var(--line);
}
.approach-step:last-child{ border-bottom:1px solid var(--line); }
.approach-step .idx{
  font-family:'IBM Plex Mono', monospace;
  color:var(--signal);
  font-size:0.85rem;
  padding-top:3px;
}
.approach-step h4{
  font-family:'Space Grotesk', sans-serif;
  font-size:1.08rem;
  margin-bottom:8px;
  font-weight:600;
}
.approach-step p{ color:var(--silver); font-size:0.93rem; line-height:1.6; }

.approach-visual{
  position:relative;
  aspect-ratio:1/1;
  border:1px solid var(--line);
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  background:radial-gradient(ellipse at 50% 40%, rgba(74,157,255,0.08), transparent 70%);
}
.approach-visual::before, .approach-visual::after{
  content:'';
  position:absolute;
  border:1px solid var(--line);
  border-radius:50%;
}
.approach-visual::before{ inset:14%; }
.approach-visual::after{ inset:30%; border-color:var(--line-bright); }
.visual-core{
  width:14%; aspect-ratio:1/1;
  border-radius:50%;
  background:radial-gradient(circle, #fff 0%, var(--signal) 55%, transparent 80%);
  box-shadow:0 0 40px 10px rgba(74,157,255,0.5);
  z-index:2;
}
.orbiter{
  position:absolute;
  width:8px; height:8px;
  border-radius:50%;
  background:var(--ice);
  box-shadow:0 0 10px 2px rgba(231,241,255,0.7);
  animation:orbit 14s linear infinite;
}
@keyframes orbit{
  from{ transform:rotate(0deg) translateX(160px) rotate(0deg); }
  to{ transform:rotate(360deg) translateX(160px) rotate(-360deg); }
}
@media (prefers-reduced-motion: reduce){ .orbiter{ animation:none; } }

/* ============ EMBEDDED TERMINAL (in the hero) ============ */
.terminal-window{
  width:100%;
  max-width:560px;
  background:#0a0e18;
  border:1px solid var(--line-bright);
  border-radius:10px;
  box-shadow:0 30px 90px rgba(0,0,0,0.55), 0 0 0 1px rgba(74,157,255,0.08);
  overflow:hidden;
}
.terminal-titlebar{
  display:flex; align-items:center;
  gap:12px;
  padding:14px 18px;
  background:#0d1220;
  border-bottom:1px solid var(--line);
}
.terminal-dots{ display:flex; gap:7px; }
.dot{ width:12px; height:12px; border-radius:50%; }
.dot-red{ background:#ff5f57; }
.dot-yellow{ background:#febc2e; }
.dot-green{ background:#28c840; }
.terminal-title{
  flex:1;
  text-align:center;
  font-family:'IBM Plex Mono', monospace;
  font-size:0.78rem;
  color:var(--silver-dim);
}
.terminal-body{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.94rem;
  line-height:1.75;
  color:#c9d6ea;
  padding:28px 30px;
  /* Fixed height (not min-height) so the window itself never grows —
     content beyond this scrolls within the body instead. */
  height:460px;
  overflow-y:auto;
  white-space:pre-wrap;
}
.term-cmd{ color:var(--ice); }
.term-heading{ color:var(--signal); font-weight:600; }
.term-option{ color:#c9d6ea; cursor:pointer; }
.term-option:hover{ color:var(--signal); }
.term-prompt-row{ display:flex; gap:6px; margin-top:6px; }
.term-prompt{ color:var(--signal); }
.term-cursor{
  color:var(--signal);
  animation:blink 1s step-end infinite;
}
@keyframes blink{ 50%{ opacity:0; } }
@media (prefers-reduced-motion: reduce){ .term-cursor{ animation:none; } }

/* ============ ABOUT US ============ */
.about{ background:var(--void); }
.about-grid{
  display:grid;
  grid-template-columns:280px 1fr;
  gap:60px;
  align-items:center;
}
.about-photo{
  position:relative;
  width:100%;
  aspect-ratio:1/1;
  border-radius:12px;
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--panel);
}
.about-photo img{
  width:100%; height:100%;
  object-fit:cover;
  position:relative;
  z-index:2;
  display:block;
}
.about-photo img.is-hidden{ display:none; }
.about-photo-fallback{
  position:absolute; inset:0;
  display:none;
  align-items:center;
  justify-content:center;
  font-family:'Space Grotesk', sans-serif;
  font-size:3rem;
  font-weight:600;
  color:var(--signal);
  background:radial-gradient(circle at 50% 40%, rgba(74,157,255,0.15), transparent 70%);
}
.about-photo-fallback.is-visible{ display:flex; }
.about-content h3{
  font-family:'Space Grotesk', sans-serif;
  font-size:1.8rem;
  font-weight:600;
  margin-bottom:6px;
}
.about-role{
  display:block;
  font-family:'IBM Plex Mono', monospace;
  font-size:0.78rem;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--signal);
  margin-bottom:20px;
}
.about-content p{
  color:var(--silver);
  line-height:1.75;
  font-size:1rem;
  max-width:560px;
}

/* ============ FOOTER ============ */
footer{
  background:var(--void);
  border-top:1px solid var(--line);
  padding:56px 5vw 40px;
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  flex-wrap:wrap;
  gap:40px;
}
.footer-brand{ display:flex; align-items:center; gap:10px; }
.footer-brand .brand-mark{ width:24px; height:24px; }
.footer-brand-name{
  font-family:'Space Grotesk', sans-serif;
  font-weight:600;
  font-size:0.95rem;
}
.footer-tag{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.7rem;
  letter-spacing:0.14em;
  color:var(--silver-dim);
  text-transform:uppercase;
  margin-top:10px;
}
.footer-cols{ display:flex; gap:80px; flex-wrap:wrap; }
.footer-col h5{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.7rem;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--silver-dim);
  margin-bottom:16px;
}
.footer-col a{
  display:block;
  color:var(--silver);
  font-size:0.88rem;
  margin-bottom:10px;
  transition:color 0.2s ease;
}
.footer-col a:hover{ color:var(--ice); }
.footer-bottom{
  width:100%;
  margin-top:40px;
  padding-top:24px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  color:var(--silver-dim);
  font-size:0.78rem;
  font-family:'IBM Plex Mono', monospace;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 860px){
  nav ul{ display:none; }
  .hero-grid{ grid-template-columns:1fr; padding-top:110px; }
  .hero-terminal-wrap{ justify-content:stretch; }
  .terminal-window{ max-width:100%; }
  .terminal-body{ height:380px; font-size:0.86rem; padding:22px 20px; }
  .stats{ grid-template-columns:1fr; }
  .stat{ border-right:none; border-bottom:1px solid var(--line); }
  .systems-grid{ grid-template-columns:1fr; }
  .approach-grid{ grid-template-columns:1fr; gap:50px; }
  .approach-visual{ max-width:280px; margin:0 auto; }
  .about-grid{ grid-template-columns:1fr; }
  .about-photo{ max-width:220px; margin:0 auto; }
  .hero-ctas{ flex-direction:column; }
  footer{ flex-direction:column; }
}

/* focus visibility */
a:focus-visible, button:focus-visible{
  outline:2px solid var(--signal);
  outline-offset:3px;
}