/* ==========================================================================
   Aetherion Technologies — Design Tokens
   Palette derived from brand mark: void background, cobalt structure,
   signal blue actions, sky-cyan highlight (logo apex), off-white text.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fira+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

:root{
  --void:        #030710;
  --void-2:      #060B18;
  --cobalt:      #0A1E4D;
  --cobalt-2:    #0E2A66;
  --signal:      #0264D1;
  --signal-2:    #0B7FE8;
  --cyan:        #14B4EE;
  --cyan-soft:   #5FD3F7;
  --white:       #F4F6FA;
  --slate:       #8B9AB5;
  --slate-dim:   #5A6985;
  --line:        rgba(244,246,250,0.08);
  --line-bright: rgba(95,211,247,0.25);

  --font-display: 'Fira Sans', 'Arial Narrow', sans-serif;
  --font-body: 'Fira Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  --container: 1180px;
  --radius: 2px;
}

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

html{ scroll-behavior:smooth; }

body{
  background:var(--void);
  color:var(--white);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

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

img{ max-width:100%; display:block; }

:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
}

::selection{ background:var(--signal); color:var(--white); }

/* ---------- Background atmosphere ---------- */
body::before{
  content:'';
  position:fixed;
  inset:0;
  background:
    radial-gradient(ellipse 900px 600px at 85% -10%, rgba(2,100,209,0.18), transparent 60%),
    radial-gradient(ellipse 700px 500px at -10% 40%, rgba(20,180,238,0.08), transparent 60%);
  pointer-events:none;
  z-index:0;
}

.wrap{
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
  position:relative;
  z-index:1;
}

/* ---------- Typography ---------- */
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:600;
  letter-spacing:-0.01em;
  line-height:1.1;
}

.eyebrow{
  font-family:var(--font-display);
  font-size:13px;
  font-weight:600;
  letter-spacing:0.18em;
  text-transform:uppercase;
  color:var(--cyan);
  display:flex;
  align-items:center;
  gap:10px;
}

.eyebrow::before{
  content:'';
  width:16px;
  height:1px;
  background:var(--cyan);
  display:inline-block;
}

p.lead{
  font-size:19px;
  color:var(--slate);
  max-width:640px;
  line-height:1.65;
}

/* ---------- Header / Nav ---------- */
.site-header{
  position:fixed;
  top:0; left:0; right:0;
  z-index:100;
  background:rgba(3,7,16,0.78);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}

.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:76px;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
}

.brand img{
  height:38px;
  width:auto;
}

.brand-text{
  font-family:var(--font-display);
  font-size:18px;
  font-weight:700;
  letter-spacing:0.02em;
}

.brand-text span{ color:var(--cyan); }

.nav-links{
  display:flex;
  align-items:center;
  gap:30px;
}

.nav-links a{
  font-size:14.5px;
  font-weight:500;
  color:var(--slate);
  position:relative;
  padding:6px 0;
  transition:color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active{
  color:var(--white);
}

.nav-links a.active::after{
  content:'';
  position:absolute;
  left:0; right:0; bottom:0;
  height:2px;
  background:var(--cyan);
}

.has-dropdown{ position:relative; }

.dropdown{
  position:absolute;
  top:100%;
  left:50%;
  transform:translateX(-50%);
  width:280px;
  background:var(--void-2);
  border:1px solid var(--line);
  border-radius:8px;
  padding:10px;
  padding-top:28px;
  opacity:0;
  visibility:hidden;
  transition:opacity 0.2s ease, transform 0.2s ease;
  box-shadow:0 24px 48px rgba(0,0,0,0.45);
}

@media (min-width: 861px){
  .has-dropdown:hover .dropdown{
    opacity:1;
    visibility:visible;
    transform:translateX(-50%) translateY(0);
  }
}

.dropdown a{
  display:block;
  padding:11px 14px;
  border-radius:5px;
  font-size:14px;
  color:var(--slate);
}

.dropdown a:hover{
  background:rgba(20,180,238,0.08);
  color:var(--white);
}

.nav-links a.nav-cta{
  display:inline-flex;
  align-items:center;
  flex-shrink:0;
  background:var(--signal);
  color:var(--white) !important;
  padding:11px 20px;
  border-radius:4px;
  font-weight:600;
  font-size:13.5px;
  white-space:nowrap;
  transition:background 0.2s ease, transform 0.2s ease;
}

.nav-cta:hover{
  background:var(--signal-2);
  transform:translateY(-1px);
}

.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  background:none;
  border:none;
  cursor:pointer;
  padding:8px;
}

.nav-toggle span{
  width:22px;
  height:2px;
  background:var(--white);
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-body);
  font-weight:600;
  font-size:15px;
  padding:14px 28px;
  border-radius:4px;
  cursor:pointer;
  border:1px solid transparent;
  transition:all 0.2s ease;
}

.btn-primary{
  background:var(--signal);
  color:var(--white);
}

.btn-primary:hover{
  background:var(--signal-2);
  transform:translateY(-1px);
  box-shadow:0 8px 24px rgba(2,100,209,0.35);
}

.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--white);
}

.btn-ghost:hover{
  border-color:var(--cyan);
  color:var(--cyan);
}

.btn-arrow{
  transition:transform 0.2s ease;
}

.btn:hover .btn-arrow{
  transform:translateX(3px);
}

/* ---------- Hero (shared shape) ---------- */
.hero{
  padding:188px 0 110px;
  position:relative;
  overflow:hidden;
}

.hero-orbit{
  position:absolute;
  top:-180px;
  right:-220px;
  width:780px;
  height:780px;
  opacity:0.55;
  pointer-events:none;
}

.hero-grid{
  display:grid;
  grid-template-columns:1.1fr 0.9fr;
  gap:60px;
  align-items:center;
}

.hero h1{
  font-size:clamp(38px, 5.2vw, 64px);
  margin:18px 0 22px;
}

.hero h1 em{
  font-style:normal;
  color:var(--cyan);
}

.hero-actions{
  display:flex;
  gap:16px;
  margin-top:34px;
  flex-wrap:wrap;
}

/* ---------- Section scaffolding ---------- */
section{
  padding:100px 0;
  position:relative;
}

.section-head{
  max-width:680px;
  margin-bottom:56px;
}

.section-head h2{
  font-size:clamp(28px, 3.4vw, 42px);
  margin-top:16px;
}

.divider{
  position:relative;
  height:1px;
  background:var(--line);
  margin:0;
}

.divider-orbit{
  position:relative;
  height:80px;
  display:flex;
  align-items:center;
  justify-content:center;
}

.divider-orbit svg{
  width:220px;
  height:60px;
  opacity:0.5;
}

/* ---------- Cards / Grids ---------- */
.grid-3{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:24px;
}

.grid-2{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:24px;
}

.card{
  background:linear-gradient(160deg, rgba(10,30,77,0.5), rgba(6,11,24,0.5));
  border:1px solid var(--line);
  border-radius:8px;
  padding:32px;
  transition:border-color 0.25s ease, transform 0.25s ease;
}

.card:hover{
  border-color:var(--line-bright);
  transform:translateY(-3px);
}

.card .icon{
  width:42px;
  height:42px;
  margin-bottom:20px;
}

.card h3{
  font-size:19px;
  margin-bottom:10px;
}

.card p{
  color:var(--slate);
  font-size:14.5px;
  line-height:1.6;
}

.service-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:18px;
  font-size:13.5px;
  font-weight:600;
  color:var(--cyan);
}

.service-link svg{
  width:14px; height:14px;
  transition:transform 0.2s ease;
}

.card:hover .service-link svg{
  transform:translateX(3px);
}

/* ---------- Stats strip ---------- */
.stats{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:8px;
  overflow:hidden;
}

.stat{
  background:var(--void-2);
  padding:32px 28px;
  text-align:left;
}

.stat .num{
  font-family:var(--font-display);
  font-size:36px;
  font-weight:700;
  color:var(--cyan);
}

.stat .label{
  font-size:13.5px;
  color:var(--slate);
  margin-top:6px;
}

/* ---------- Logo strip ---------- */
.cloud-strip{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:24px;
  padding:36px 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}

.cloud-strip span{
  font-family:var(--font-display);
  font-size:14px;
  letter-spacing:0.06em;
  color:var(--slate-dim);
  font-weight:600;
}

/* ---------- Process list ---------- */
.process{
  display:flex;
  flex-direction:column;
}

.process-row{
  display:grid;
  grid-template-columns:90px 1fr;
  gap:32px;
  padding:32px 0;
  border-top:1px solid var(--line);
}

.process-row:last-child{
  border-bottom:1px solid var(--line);
}

.process-row .tag{
  font-family:var(--font-display);
  font-size:13px;
  font-weight:600;
  letter-spacing:0.1em;
  color:var(--cyan);
  padding-top:4px;
}

.process-row h4{
  font-size:20px;
  margin-bottom:8px;
}

.process-row p{
  color:var(--slate);
  font-size:15px;
  max-width:560px;
}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(135deg, var(--cobalt) 0%, var(--void-2) 100%);
  border:1px solid var(--line-bright);
  border-radius:14px;
  padding:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  position:relative;
  overflow:hidden;
}

.cta-band::after{
  content:'';
  position:absolute;
  right:-80px; top:-80px;
  width:280px; height:280px;
  background:radial-gradient(circle, rgba(20,180,238,0.18), transparent 70%);
}

.cta-band h2{
  font-size:clamp(24px, 3vw, 32px);
  max-width:520px;
  position:relative;
  z-index:1;
}

.cta-actions{
  display:flex;
  gap:14px;
  flex-shrink:0;
  position:relative;
  z-index:1;
}

/* ---------- Page hero (service pages, shorter) ---------- */
.page-hero{
  padding:168px 0 80px;
  border-bottom:1px solid var(--line);
}

.page-hero .eyebrow{ margin-bottom:18px; }

.page-hero h1{
  font-size:clamp(34px, 4.6vw, 52px);
  margin-bottom:20px;
}

.page-hero p.lead{ margin-bottom:0; }

.breadcrumb{
  font-size:13px;
  color:var(--slate-dim);
  margin-bottom:28px;
}

.breadcrumb a:hover{ color:var(--cyan); }

/* ---------- Two-column feature ---------- */
.feature-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
}

.feature-row.reverse .feature-text{ order:2; }
.feature-row.reverse .feature-visual{ order:1; }

.feature-text .eyebrow{ margin-bottom:16px; }

.feature-text h3{
  font-size:clamp(24px, 2.8vw, 30px);
  margin-bottom:18px;
}

.feature-text p{
  color:var(--slate);
  margin-bottom:24px;
  font-size:15.5px;
}

.check-list{
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:14px;
}

.check-list li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  font-size:14.5px;
  color:var(--white);
}

.check-list svg{
  flex-shrink:0;
  margin-top:2px;
  width:18px; height:18px;
  color:var(--cyan);
}

.feature-visual{
  background:linear-gradient(160deg, rgba(10,30,77,0.6), rgba(3,7,16,0.6));
  border:1px solid var(--line);
  border-radius:10px;
  padding:36px;
  min-height:340px;
  display:flex;
  align-items:center;
  justify-content:center;
}

/* ---------- Capability table ---------- */
.cap-table{
  width:100%;
  border-collapse:collapse;
}

.cap-table th{
  text-align:left;
  font-family:var(--font-display);
  font-size:13px;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--cyan);
  padding:14px 20px;
  border-bottom:1px solid var(--line-bright);
}

.cap-table td{
  padding:18px 20px;
  border-bottom:1px solid var(--line);
  font-size:14.5px;
  color:var(--slate);
  vertical-align:top;
}

.cap-table td:first-child{
  color:var(--white);
  font-weight:600;
  white-space:nowrap;
}

/* ---------- Tech tag pills ---------- */
.pill-group{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}

.pill{
  font-size:13px;
  font-weight:500;
  padding:8px 16px;
  border:1px solid var(--line);
  border-radius:30px;
  color:var(--slate);
}

/* ---------- Footer ---------- */
footer{
  border-top:1px solid var(--line);
  padding:64px 0 36px;
}

.footer-top{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}

.footer-brand .brand{ margin-bottom:18px; }

.footer-brand p{
  color:var(--slate);
  font-size:14px;
  max-width:280px;
  line-height:1.6;
}

.footer-col h5{
  font-family:var(--font-display);
  font-size:13px;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--slate-dim);
  margin-bottom:18px;
}

.footer-col a{
  display:block;
  font-size:14.5px;
  color:var(--slate);
  margin-bottom:13px;
  transition:color 0.2s ease;
}

.footer-col a:hover{ color:var(--cyan); }

.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding-top:28px;
  border-top:1px solid var(--line);
  flex-wrap:wrap;
  gap:16px;
}

.footer-bottom p{
  font-size:13px;
  color:var(--slate-dim);
}

.footer-legal{
  display:flex;
  gap:24px;
}

.footer-legal a{
  font-size:13px;
  color:var(--slate-dim);
}

.footer-legal a:hover{ color:var(--cyan); }

/* ---------- Animations ---------- */
@keyframes orbit-sweep{
  from{ stroke-dashoffset:340; }
  to{ stroke-dashoffset:0; }
}

.orbit-draw{
  stroke-dasharray:340;
  animation:orbit-sweep 1.8s ease-out forwards;
}

@keyframes fade-up{
  from{ opacity:0; transform:translateY(14px); }
  to{ opacity:1; transform:translateY(0); }
}

.fade-up{
  animation:fade-up 0.7s ease-out forwards;
}

.fade-up-delay{
  opacity:0;
  animation:fade-up 0.7s ease-out forwards;
  animation-delay:0.25s;
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.01ms !important; animation-iteration-count:1 !important; }
  html{ scroll-behavior:auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px){
  .hero-grid{ grid-template-columns:1fr; }
  .hero-orbit{ display:none; }
  .grid-3{ grid-template-columns:repeat(2, 1fr); }
  .footer-top{ grid-template-columns:1fr 1fr; gap:36px 24px; }
  .feature-row{ grid-template-columns:1fr; gap:40px; }
  .feature-row.reverse .feature-text{ order:1; }
  .feature-row.reverse .feature-visual{ order:2; }
}

@media (max-width: 860px){
  .nav-links{
    position:fixed;
    top:76px; left:0; right:0;
    z-index:99;
    background:var(--void-2);
    border-bottom:1px solid var(--line);
    flex-direction:column;
    align-items:flex-start;
    padding:24px 32px 32px;
    gap:18px;
    max-height:calc(100vh - 76px);
    overflow-y:auto;
    transform:translateY(-12px);
    opacity:0;
    visibility:hidden;
    transition:all 0.25s ease;
  }
  .nav-links.open{
    transform:translateY(0);
    opacity:1;
    visibility:visible;
  }
  .has-dropdown .dropdown{
    position:static;
    transform:none;
    opacity:1;
    visibility:visible;
    width:100%;
    margin-top:10px;
    display:none;
    box-shadow:none;
  }
  .has-dropdown.open .dropdown{ display:block; }
  .nav-toggle{ display:flex; }
  .nav-cta{ width:100%; text-align:center; }
  .stats{ grid-template-columns:1fr 1fr; }
  .cta-band{ flex-direction:column; text-align:center; padding:44px 28px; }
  .cta-actions{ flex-direction:column; width:100%; }
}

@media (max-width: 640px){
  .wrap{ padding:0 20px; }
  .hero{ padding:150px 0 70px; }
  section{ padding:70px 0; }
  .grid-3, .grid-2{ grid-template-columns:1fr; }
  .stats{ grid-template-columns:1fr 1fr; }
  .footer-top{ grid-template-columns:1fr; }
  .cap-table{ display:block; overflow-x:auto; white-space:nowrap; }
  .process-row{ grid-template-columns:1fr; gap:10px; }
}