/* ============================================================
   GRAVITY ENTERPRISES — Design tokens
   Palette drawn from brand mark (metallic navy/blue orbital G):
   --navy        #0D2B46  deepest ink, headlines, footer
   --gravity     #1B4F7A  primary brand blue
   --steel       #4A80A5  secondary / mid blue
   --sky         #8FB7D4  light accent, orbit lines
   --mist        #EEF3F7  section background (alt)
   --white       #FFFFFF
   --ink         #16202B  body text
   --silver-line #C9D7E2  hairline dividers
   Typography:
   Display — Space Grotesk (technical, geometric — orbital character)
   Body    — Inter (clean, trustworthy)
   Mono    — IBM Plex Mono (registrations, data, addresses)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  --navy:#0D2B46;
  --gravity:#1B4F7A;
  --steel:#4A80A5;
  --sky:#8FB7D4;
  --mist:#EEF3F7;
  --white:#FFFFFF;
  --ink:#16202B;
  --silver-line:#C9D7E2;

  --grad-metal: linear-gradient(135deg, #35618A 0%, #1B4F7A 45%, #0D2B46 100%);
  --grad-metal-light: linear-gradient(135deg, #C9D7E2 0%, #8FB7D4 50%, #4A80A5 100%);

  --font-display:'Space Grotesk', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'IBM Plex Mono', monospace;

  --container: 1180px;
  --radius: 4px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  line-height:1.6;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{
  font-family:var(--font-display);
  color:var(--navy);
  margin:0;
  line-height:1.12;
  letter-spacing:-0.01em;
}
.eyebrow{
  font-family:var(--font-mono);
  font-size:0.72rem;
  letter-spacing:0.18em;
  text-transform:uppercase;
  color:var(--steel);
  display:flex;
  align-items:center;
  gap:0.6rem;
  margin-bottom:1rem;
}
.eyebrow::before{
  content:'';
  width:22px;height:1px;
  background:var(--steel);
  display:inline-block;
}
.container{
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
.section{
  padding:96px 0;
}
.section--tight{padding:64px 0;}
.section--mist{background:var(--mist);}
.section--navy{background:var(--navy); color:#DCE8F1;}
.section--navy h2, .section--navy h3{color:#fff;}
.section--navy .eyebrow{color:var(--sky);}
.section--navy .eyebrow::before{background:var(--sky);}

.grid{display:grid;gap:32px;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:14px 28px;
  font-family:var(--font-display);
  font-weight:600;
  font-size:0.95rem;
  border-radius:var(--radius);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .25s ease, box-shadow .25s ease, background .25s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad-metal);
  color:#fff;
  box-shadow:0 8px 24px -8px rgba(13,43,70,0.55);
}
.btn-primary:hover{transform:translateY(-2px); box-shadow:0 12px 28px -8px rgba(13,43,70,0.65);}
.btn-ghost{
  background:transparent;
  color:var(--navy);
  border:1px solid var(--silver-line);
}
.btn-ghost:hover{border-color:var(--steel); background:rgba(74,128,165,0.06);}
.section--navy .btn-ghost{color:#fff; border-color:rgba(255,255,255,0.35);}
.section--navy .btn-ghost:hover{border-color:#fff; background:rgba(255,255,255,0.08);}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(255,255,255,0.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--silver-line);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 32px;
  max-width:var(--container);
  margin:0 auto;
}
.nav-logo img{height:42px; width:auto;}
.nav-links{display:flex; align-items:center; gap:36px;}
.nav-links a{
  font-family:var(--font-display);
  font-size:0.92rem;
  font-weight:500;
  color:var(--navy);
  position:relative;
  padding:6px 0;
}
.nav-links a::after{
  content:'';
  position:absolute; left:0; bottom:0;
  width:0; height:2px;
  background:var(--grad-metal);
  transition:width .25s ease;
}
.nav-links a:hover::after, .nav-links a.active::after{width:100%;}
.nav-links a.active{color:var(--gravity);}
.nav-cta{display:flex; align-items:center; gap:20px;}
.nav-cta .btn{padding:11px 22px; font-size:0.85rem;}
.nav-toggle{display:none; background:none;border:none;cursor:pointer;}
.nav-toggle span{display:block; width:24px; height:2px; background:var(--navy); margin:5px 0;}

/* ---------- Orbital signature motif ---------- */
.orbit-ring{ display:block; }
.orbit-marker{
  width:9px;height:9px;
  border:2px solid var(--steel);
  border-radius:50%;
  display:inline-block;
  position:relative;
  flex-shrink:0;
}
.orbit-marker::after{
  content:'';
  position:absolute; top:-3px; right:-3px;
  width:3px;height:3px;
  border-radius:50%;
  background:var(--gravity);
}
.list-orbit li{
  display:flex; align-items:flex-start; gap:14px;
  padding:10px 0;
  border-bottom:1px dashed var(--silver-line);
}
.list-orbit li:last-child{border-bottom:none;}
.list-orbit .orbit-marker{margin-top:6px;}

.divider-orbit{
  display:flex; align-items:center; justify-content:center;
  gap:16px;
  margin:0 auto;
  width:100%;
  opacity:0.7;
}
.divider-orbit .line{flex:1; max-width:120px; height:1px; background:var(--silver-line);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(1200px 600px at 82% -10%, rgba(143,183,212,0.25), transparent 60%),
    linear-gradient(180deg, #FFFFFF 0%, #F4F8FB 100%);
  padding:88px 0 60px;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr 0.95fr;
  gap:40px;
  align-items:center;
}
.hero h1{
  font-size:clamp(2.4rem, 4.4vw, 3.6rem);
  margin-bottom:22px;
}
.hero h1 .accent{
  background:var(--grad-metal);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero p.lede{
  font-size:1.12rem;
  color:#3B4A58;
  max-width:520px;
  margin-bottom:32px;
}
.hero-ctas{display:flex; gap:16px; margin-bottom:44px; flex-wrap:wrap;}
.hero-stats{
  display:flex; gap:36px;
  font-family:var(--font-mono);
  flex-wrap:wrap;
}
.hero-stats .stat b{
  display:block; font-size:1.5rem; color:var(--navy); font-family:var(--font-display);
}
.hero-stats .stat span{font-size:0.75rem; color:var(--steel); letter-spacing:0.03em;}

.orbit-graphic{position:relative; width:100%; aspect-ratio:1/1; max-width:460px; margin:0 auto;}

/* ---------- Slider ---------- */
.slider{
  position:relative;
  overflow:hidden;
  border-radius:8px;
}
.slider-track{
  display:flex;
  transition:transform .6s cubic-bezier(.65,.05,.36,1);
}
.slide{
  min-width:100%;
  position:relative;
  display:grid;
  grid-template-columns:1fr 1fr;
  align-items:center;
  background:var(--navy);
  min-height:380px;
}
.slide img{width:100%; height:100%; object-fit:cover; min-height:380px;}
.slide-copy{padding:48px 56px; color:#fff;}
.slide-copy .eyebrow{color:var(--sky);}
.slide-copy .eyebrow::before{background:var(--sky);}
.slide-copy h3{color:#fff; font-size:1.7rem; margin-bottom:14px;}
.slide-copy p{color:#C6D6E4; margin-bottom:22px;}
.slider-controls{
  position:absolute; bottom:20px; right:32px;
  display:flex; gap:10px; z-index:5;
}
.slider-controls button{
  width:40px;height:40px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,0.4);
  background:rgba(255,255,255,0.08);
  color:#fff;
  cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:background .2s ease;
}
.slider-controls button:hover{background:rgba(255,255,255,0.25);}
.slider-dots{
  position:absolute; bottom:26px; left:56px;
  display:flex; gap:8px; z-index:5;
}
.slider-dots button{
  width:8px;height:8px;border-radius:50%;
  border:1px solid rgba(255,255,255,0.6);
  background:transparent;
  cursor:pointer;padding:0;
}
.slider-dots button.active{background:#fff;}

/* Testimonial slider */
.t-slider{max-width:760px; margin:0 auto; text-align:center; position:relative;}
.t-slide{display:none;}
.t-slide.active{display:block; animation:fadeIn .5s ease;}
@keyframes fadeIn{from{opacity:0; transform:translateY(8px);} to{opacity:1; transform:translateY(0);}}
.t-quote{
  font-family:var(--font-display);
  font-size:1.35rem;
  color:var(--navy);
  line-height:1.5;
  margin-bottom:26px;
}
.t-person b{display:block; font-family:var(--font-display); color:var(--gravity);}
.t-person span{font-size:0.85rem; color:#5a6b78; font-family:var(--font-mono);}
.t-nav{display:flex; justify-content:center; gap:10px; margin-top:28px;}
.t-nav button{
  width:9px;height:9px;border-radius:50%;
  border:1px solid var(--steel); background:transparent; cursor:pointer; padding:0;
}
.t-nav button.active{background:var(--steel);}

/* ---------- Cards ---------- */
.card{
  background:#fff;
  border:1px solid var(--silver-line);
  border-radius:6px;
  padding:36px 30px;
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  position:relative;
}
.card:hover{
  transform:translateY(-4px);
  box-shadow:0 20px 40px -20px rgba(13,43,70,0.25);
  border-color:var(--steel);
}
.card .orbit-marker{margin-bottom:18px; width:14px;height:14px; border-width:2px;}
.card h3{font-size:1.2rem; margin-bottom:10px;}
.card p{color:#4d5c68; font-size:0.95rem; margin:0;}
.card a.card-link{
  display:inline-flex; align-items:center; gap:6px;
  margin-top:16px; font-family:var(--font-display); font-size:0.85rem; font-weight:600; color:var(--gravity);
}

/* ---------- Value prop / stats band ---------- */
.stat-band{
  display:grid; grid-template-columns:repeat(4,1fr); gap:1px;
  background:var(--silver-line);
  border:1px solid var(--silver-line);
  border-radius:6px;
  overflow:hidden;
}
.stat-band .stat-item{
  background:#fff; padding:32px 24px; text-align:center;
}
.stat-item b{
  display:block; font-family:var(--font-display); font-size:2.1rem; color:var(--navy);
}
.stat-item span{font-family:var(--font-mono); font-size:0.78rem; color:var(--steel); letter-spacing:0.02em;}

/* ---------- CTA banner ---------- */
.cta-banner{
  background:var(--grad-metal);
  border-radius:10px;
  padding:56px;
  display:flex; align-items:center; justify-content:space-between; gap:32px;
  flex-wrap:wrap;
  color:#fff;
}
.cta-banner h2{color:#fff; font-size:1.9rem; max-width:520px;}
.cta-banner .btn-ghost{border-color:rgba(255,255,255,0.5); color:#fff;}
.cta-banner .btn-ghost:hover{background:rgba(255,255,255,0.15);}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy); color:#B9CBDA; padding:64px 0 28px;}
.footer-grid{
  display:grid; grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:40px;
  padding-bottom:40px; border-bottom:1px solid rgba(255,255,255,0.12);
}
.footer-logo img{height:38px; margin-bottom:16px; filter:brightness(0) invert(1);}
.site-footer h4{color:#fff; font-size:0.85rem; letter-spacing:0.08em; text-transform:uppercase; margin-bottom:18px; font-family:var(--font-display);}
.site-footer ul li{margin-bottom:10px; font-size:0.92rem;}
.site-footer a:hover{color:#fff;}
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center;
  padding-top:24px; font-size:0.82rem; color:#7E93A5; flex-wrap:wrap; gap:12px;
  font-family:var(--font-mono);
}
.social-row{display:flex; gap:12px;}
.social-row a{
  width:36px;height:36px;border-radius:50%;
  border:1px solid rgba(255,255,255,0.2);
  display:flex;align-items:center;justify-content:center;
  transition:background .2s ease, border-color .2s ease;
}
.social-row a:hover{background:rgba(255,255,255,0.1); border-color:#fff;}

/* ---------- Page hero (inner pages) ---------- */
.page-hero{
  background:linear-gradient(180deg, var(--navy) 0%, #12324f 100%);
  color:#fff;
  padding:72px 0 60px;
  position:relative;
  overflow:hidden;
}
.page-hero .eyebrow{color:var(--sky);}
.page-hero .eyebrow::before{background:var(--sky);}
.page-hero h1{color:#fff; font-size:clamp(2rem,3.6vw,2.8rem); max-width:680px;}
.page-hero p{color:#C6D6E4; max-width:600px; margin-top:16px; font-size:1.05rem;}
.breadcrumb{font-family:var(--font-mono); font-size:0.78rem; color:var(--sky); margin-bottom:18px; letter-spacing:0.04em;}

/* ---------- About page specifics ---------- */
.story-grid{display:grid; grid-template-columns:0.9fr 1.1fr; gap:56px; align-items:center;}
.story-grid img{border-radius:8px;}
.mv-grid{display:grid; grid-template-columns:1fr 1fr; gap:32px;}
.mv-card{
  background:var(--mist); border-radius:8px; padding:36px;
  border-top:3px solid var(--gravity);
}
.mv-card h3{margin-bottom:12px;}
.timeline{position:relative; margin-top:20px; padding-left:32px; border-left:2px solid var(--silver-line);}
.timeline-item{position:relative; padding-bottom:36px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:''; position:absolute; left:-38px; top:2px;
  width:12px;height:12px; border-radius:50%; background:#fff; border:2px solid var(--gravity);
}
.timeline-item .yr{font-family:var(--font-mono); color:var(--steel); font-size:0.85rem;}
.timeline-item h4{margin:6px 0 6px;}

/* ---------- Services page ---------- */
.service-pillar{margin-bottom:80px;}
.pillar-head{display:flex; align-items:flex-end; justify-content:space-between; margin-bottom:36px; gap:24px; flex-wrap:wrap; border-bottom:1px solid var(--silver-line); padding-bottom:24px;}
.pillar-head h2{font-size:1.8rem;}
.pillar-num{font-family:var(--font-mono); color:var(--sky); font-size:0.85rem;}
.service-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:24px;}
.service-item{
  border:1px solid var(--silver-line); border-radius:6px; padding:26px 24px;
  transition:border-color .2s ease, background .2s ease;
}
.service-item:hover{border-color:var(--steel); background:var(--mist);}
.service-item h4{font-size:1.02rem; margin-bottom:8px;}
.service-item p{font-size:0.88rem; color:#54626e; margin:0;}
.process-strip{display:flex; justify-content:space-between; gap:16px; margin-top:24px; flex-wrap:wrap;}
.process-step{flex:1; min-width:150px; text-align:center; position:relative;}
.process-step .num{
  width:44px;height:44px; border-radius:50%; background:var(--grad-metal); color:#fff;
  display:flex; align-items:center; justify-content:center; margin:0 auto 14px; font-family:var(--font-display); font-weight:600;
}
.process-step h5{font-size:0.92rem; margin-bottom:6px; color:var(--navy); font-family:var(--font-display);}
.process-step p{font-size:0.8rem; color:#5a6b78; margin:0;}

/* ---------- Contact page ---------- */
.contact-grid{display:grid; grid-template-columns:1fr 1.1fr; gap:48px;}
.contact-info-card{
  background:var(--navy); color:#fff; border-radius:8px; padding:40px;
}
.contact-info-card h3{color:#fff; margin-bottom:24px;}
.info-row{display:flex; gap:16px; margin-bottom:22px;}
.info-row .ic{
  width:38px;height:38px; border-radius:50%; border:1px solid rgba(255,255,255,0.3);
  display:flex; align-items:center; justify-content:center; flex-shrink:0;
}
.info-row .label{font-family:var(--font-mono); font-size:0.72rem; color:var(--sky); letter-spacing:0.06em; margin-bottom:4px; text-transform:uppercase;}
.info-row .val{font-size:0.96rem; color:#E4EDF3;}
.map-embed{border-radius:8px; overflow:hidden; margin-top:28px; border:1px solid rgba(255,255,255,0.2);}
.map-embed iframe{width:100%; height:220px; border:0; display:block; filter:grayscale(0.3) contrast(1.05);}

.form-card{background:#fff; border:1px solid var(--silver-line); border-radius:8px; padding:40px;}
.form-row{display:grid; grid-template-columns:1fr 1fr; gap:18px; margin-bottom:18px;}
.field{display:flex; flex-direction:column; gap:8px;}
.field label{font-family:var(--font-display); font-size:0.85rem; font-weight:500; color:var(--navy);}
.field input, .field select, .field textarea{
  border:1px solid var(--silver-line); border-radius:4px; padding:12px 14px;
  font-family:var(--font-body); font-size:0.95rem; color:var(--ink); background:#fbfdfe;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none; border-color:var(--steel); box-shadow:0 0 0 3px rgba(74,128,165,0.15);
}
.field.full{grid-column:1/-1;}
.form-note{font-size:0.8rem; color:#6a7885; margin-top:14px; font-family:var(--font-mono);}
.form-success{
  display:none; background:var(--mist); border:1px solid var(--sky); border-radius:6px;
  padding:16px 18px; margin-top:18px; font-size:0.9rem; color:var(--navy);
}
.form-success.show{display:block;}

/* ---------- Responsive ---------- */
@media (max-width: 980px){
  .grid-3, .grid-4, .service-grid{grid-template-columns:repeat(2,1fr);}
  .hero-grid, .story-grid, .contact-grid, .mv-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .stat-band{grid-template-columns:repeat(2,1fr);}
  .slide{grid-template-columns:1fr;}
  .slide img{min-height:220px;}
}
@media (max-width: 720px){
  .nav-links, .nav-cta .btn-ghost{display:none;}
  .nav-toggle{display:block;}
  .grid-3, .grid-4, .grid-2, .service-grid, .footer-grid{grid-template-columns:1fr;}
  .section{padding:64px 0;}
  .cta-banner{flex-direction:column; align-items:flex-start; padding:36px;}
  .form-row{grid-template-columns:1fr;}
  .process-strip{flex-direction:column;}
}