/* ==========================================================================
   VOBION — design tokens
   Palette: cool paper + ink navy + single brass accent (blueprint/schematic mood)
   Type: Space Grotesk (display) / IBM Plex Sans (body) / IBM Plex Mono (utility)
   ========================================================================== */

:root{
  --ink:        #10131C;
  --ink-soft:   #454B5C;
  --paper:      #EEF0F4;
  --paper-2:    #E3E6EC;
  --white:      #FFFFFF;
  --brass:      #B27F2A;
  --brass-soft: #DDBB77;
  --line:       #C7CBD1;
  --line-dark:  #2A2F3D;

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

  --max: 1180px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--body);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family:var(--display); margin:0; font-weight:600; letter-spacing:-0.01em; }
p{ margin:0; }

.wrap{ max-width:var(--max); margin:0 auto; padding:0 32px; }

/* --- eyebrow / mono utility text --- */
.eyebrow{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--brass);
  display:flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:"";
  width:16px; height:1px;
  background:var(--brass);
  display:inline-block;
}
.eyebrow.on-dark{ color:var(--brass-soft); }

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

/* ==========================================================================
   Header
   ========================================================================== */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(238,240,244,0.88);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header .wrap{
  display:flex; align-items:center; justify-content:space-between;
  height:76px;
}
.logo{
  font-family:var(--display);
  font-weight:600;
  font-size:20px;
  letter-spacing:0.02em;
  display:flex; align-items:baseline; gap:8px;
}
.logo .dot{ color:var(--brass); }
.logo .tag{
  font-family:var(--mono);
  font-size:10.5px;
  letter-spacing:0.1em;
  color:var(--ink-soft);
  text-transform:uppercase;
  border-left:1px solid var(--line);
  padding-left:8px;
  margin-left:2px;
}
.nav{
  display:flex; align-items:center; gap:36px;
}
.nav a{
  font-family:var(--mono);
  font-size:13px;
  letter-spacing:0.04em;
  text-transform:uppercase;
  color:var(--ink-soft);
  position:relative;
  padding:4px 0;
}
.nav a:hover, .nav a[aria-current="page"]{ color:var(--ink); }
.nav a[aria-current="page"]::after{
  content:"";
  position:absolute; left:0; right:0; bottom:-2px;
  height:2px; background:var(--brass);
}
.nav-cta{
  font-family:var(--mono);
  font-size:12.5px;
  text-transform:uppercase;
  letter-spacing:0.06em;
  background:var(--ink);
  color:var(--paper) !important;
  padding:10px 18px;
  border-radius:2px;
  transition:background .18s ease;
}
.nav-cta:hover{ background:var(--brass); color:var(--ink) !important; }

.nav-toggle{
  display:none;
  background:none; border:1px solid var(--line-dark);
  width:40px; height:40px; border-radius:2px;
  cursor:pointer;
  position:relative;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:""; position:absolute; left:10px; right:10px; height:1.5px; background:var(--ink);
}
.nav-toggle span{ top:19px; }
.nav-toggle span::before{ top:-6px; }
.nav-toggle span::after{ top:6px; }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--mono);
  font-size:13px; letter-spacing:0.05em; text-transform:uppercase;
  padding:14px 24px;
  border-radius:2px;
  border:1px solid var(--ink);
  transition:all .18s ease;
  cursor:pointer;
}
.btn-primary{ background:var(--ink); color:var(--paper); }
.btn-primary:hover{ background:var(--brass); border-color:var(--brass); color:var(--ink); }
.btn-ghost{ background:transparent; color:var(--ink); }
.btn-ghost:hover{ border-color:var(--brass); color:var(--brass); }
.btn-arrow{ transition:transform .18s ease; }
.btn:hover .btn-arrow{ transform:translateX(3px); }

.btn.on-dark{ border-color:var(--paper); color:var(--paper); }
.btn.on-dark:hover{ background:var(--brass-soft); border-color:var(--brass-soft); color:var(--ink); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{
  position:relative;
  padding:96px 0 88px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero-grid{
  position:absolute; inset:0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:64px 64px;
  opacity:0.35;
  mask-image:linear-gradient(to bottom, black, transparent 85%);
}
.hero-inner{ position:relative; display:grid; grid-template-columns:1.05fr 0.95fr; gap:48px; align-items:center; }
.hero h1{
  font-size:clamp(38px, 5.2vw, 64px);
  line-height:1.04;
  margin-top:18px;
}
.hero h1 em{ font-style:normal; color:var(--brass); }
.hero p.lede{
  font-size:18px; color:var(--ink-soft);
  max-width:46ch;
  margin-top:22px;
}
.hero-actions{ display:flex; gap:14px; margin-top:34px; flex-wrap:wrap; }
.hero-meta{
  display:flex; gap:28px; margin-top:56px;
  font-family:var(--mono); font-size:12px; color:var(--ink-soft);
  letter-spacing:0.03em;
}
.hero-meta strong{ display:block; font-family:var(--display); font-size:22px; color:var(--ink); font-weight:600; }

.hero-diagram{ position:relative; }
.hero-diagram svg{ width:100%; height:auto; }

@media (prefers-reduced-motion: no-preference){
  .pulse{ animation:pulse 3.6s ease-in-out infinite; }
  .pulse-d1{ animation-delay:.4s; }
  .pulse-d2{ animation-delay:1.1s; }
  .pulse-d3{ animation-delay:1.8s; }
  .flow{ stroke-dasharray:6 8; animation:flow 5s linear infinite; }
}
@keyframes pulse{ 0%,100%{ opacity:.35; } 50%{ opacity:1; } }
@keyframes flow{ to{ stroke-dashoffset:-140; } }

/* ==========================================================================
   Sections generic
   ========================================================================== */
section{ padding:88px 0; }
.section-head{ max-width:640px; margin-bottom:52px; }
.section-head h2{ font-size:clamp(28px,3.4vw,40px); margin-top:16px; }
.section-head p{ color:var(--ink-soft); margin-top:14px; font-size:16px; }

.divider{
  border:none; border-top:1px solid var(--line); margin:0;
}

/* --- service cards --- */
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
.card{
  background:var(--paper); padding:34px 30px;
  display:flex; flex-direction:column; gap:14px;
}
.card .code{
  font-family:var(--mono); font-size:12px; color:var(--brass);
  letter-spacing:0.08em;
}
.card h3{ font-size:20px; }
.card p{ color:var(--ink-soft); font-size:14.5px; }
.card ul{ margin-top:4px; display:flex; flex-direction:column; gap:6px; }
.card li{ font-size:13.5px; color:var(--ink-soft); padding-left:16px; position:relative; }
.card li::before{ content:"—"; position:absolute; left:0; color:var(--brass); }

/* --- process (real sequence, numbered) --- */
.process{ display:grid; grid-template-columns:repeat(4,1fr); gap:0; border-top:1px solid var(--line); }
.process-step{ padding:32px 26px; border-right:1px solid var(--line); }
.process-step:last-child{ border-right:none; }
.process-step .num{ font-family:var(--mono); color:var(--brass); font-size:13px; }
.process-step h4{ font-size:17px; margin-top:14px; }
.process-step p{ font-size:13.5px; color:var(--ink-soft); margin-top:8px; }

/* --- dark band --- */
.band-dark{
  background:var(--ink); color:var(--paper);
  padding:80px 0;
}
.band-dark .eyebrow{ color:var(--brass-soft); }
.band-dark .eyebrow::before{ background:var(--brass-soft); }
.band-dark h2{ color:var(--paper); font-size:clamp(26px,3.2vw,38px); margin-top:16px; max-width:20ch; }
.band-dark p{ color:#B7BCC9; margin-top:14px; max-width:56ch; }
.band-row{ display:flex; align-items:flex-end; justify-content:space-between; gap:40px; flex-wrap:wrap; }

/* --- feature list --- */
.feature-list{ display:grid; grid-template-columns:repeat(2,1fr); gap:36px 48px; }
.feature-list li{ display:flex; gap:16px; }
.feature-list .mark{ font-family:var(--mono); color:var(--brass); font-size:13px; padding-top:3px; }
.feature-list h4{ font-size:16px; }
.feature-list p{ font-size:14px; color:var(--ink-soft); margin-top:6px; }

/* ==========================================================================
   Page hero (secondary pages)
   ========================================================================== */
.page-hero{
  padding:64px 0 56px;
  border-bottom:1px solid var(--line);
  position:relative;
}
.page-hero h1{ font-size:clamp(32px,4.6vw,50px); margin-top:16px; }
.page-hero p.lede{ color:var(--ink-soft); max-width:52ch; margin-top:16px; font-size:16.5px; }

/* ==========================================================================
   Contact page
   ========================================================================== */
.contact-grid{ display:grid; grid-template-columns:0.9fr 1.1fr; gap:0; border:1px solid var(--line); }
.contact-info{ padding:48px 42px; background:var(--ink); color:var(--paper); }
.contact-info h3{ color:var(--paper); font-size:22px; }
.contact-info .addr{ margin-top:22px; font-size:15px; color:#C9CDD8; line-height:1.7; }
.contact-info .addr .mono-line{ font-family:var(--mono); font-size:12.5px; color:var(--brass-soft); letter-spacing:.04em; display:block; margin-bottom:8px; }
.contact-links{ margin-top:30px; display:flex; flex-direction:column; gap:10px; }
.contact-links a{ font-size:14.5px; border-bottom:1px solid #313749; padding-bottom:8px; display:flex; justify-content:space-between; }
.contact-links a:hover{ color:var(--brass-soft); }

.contact-form{ padding:48px 42px; background:var(--paper); }
.field{ margin-bottom:22px; }
.field label{
  display:block; font-family:var(--mono); font-size:11.5px; text-transform:uppercase;
  letter-spacing:0.08em; color:var(--ink-soft); margin-bottom:8px;
}
.field input, .field textarea, .field select{
  width:100%; border:1px solid var(--line); background:var(--white);
  padding:12px 14px; font-family:var(--body); font-size:15px; color:var(--ink);
  border-radius:2px;
}
.field textarea{ resize:vertical; min-height:120px; }
.field input:focus, .field textarea:focus, .field select:focus{ border-color:var(--brass); outline:none; }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.form-note{ font-size:12.5px; color:var(--ink-soft); margin-top:6px; }

/* ==========================================================================
   Legal pages
   ========================================================================== */
.legal{ max-width:760px; }
.legal h2{ font-size:22px; margin-top:44px; margin-bottom:14px; }
.legal h2:first-of-type{ margin-top:0; }
.legal p, .legal li{ font-size:15px; color:var(--ink-soft); margin-bottom:12px; }
.legal ul{ padding-left:20px; list-style:disc; }
.legal .updated{ font-family:var(--mono); font-size:12px; color:var(--brass); text-transform:uppercase; letter-spacing:.06em; margin-bottom:8px; display:block; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer{ background:var(--ink); color:#9299AA; padding:64px 0 28px; }
.footer-top{ display:grid; grid-template-columns:1.3fr 1fr 1fr 1fr; gap:32px; padding-bottom:48px; border-bottom:1px solid var(--line-dark); }
.footer-brand .logo{ color:var(--paper); }
.footer-brand p{ margin-top:16px; font-size:13.5px; line-height:1.7; max-width:32ch; }
.footer-col h5{
  font-family:var(--mono); font-size:11.5px; text-transform:uppercase; letter-spacing:.08em;
  color:#6B7182; margin-bottom:16px;
}
.footer-col ul{ display:flex; flex-direction:column; gap:10px; }
.footer-col a{ font-size:14px; color:#B7BCC9; }
.footer-col a:hover{ color:var(--brass-soft); }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:24px; font-family:var(--mono); font-size:11.5px; color:#5C6272; flex-wrap:wrap; gap:12px; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width:920px){
  .hero-inner{ grid-template-columns:1fr; }
  .hero-diagram{ order:-1; max-width:340px; }
  .grid-3{ grid-template-columns:1fr; }
  .process{ grid-template-columns:1fr 1fr; }
  .process-step{ border-right:none; border-bottom:1px solid var(--line); }
  .contact-grid{ grid-template-columns:1fr; }
  .feature-list{ grid-template-columns:1fr; }
  .footer-top{ grid-template-columns:1fr 1fr; }
}
@media (max-width:720px){
  .nav{ position:fixed; inset:76px 0 0 0; background:var(--paper); flex-direction:column; align-items:flex-start; padding:28px 32px; gap:22px; transform:translateX(100%); transition:transform .22s ease; }
  .nav.open{ transform:translateX(0); }
  .nav-toggle{ display:block; }
  .nav-cta{ margin-top:8px; }
  .process{ grid-template-columns:1fr; }
  .form-row{ grid-template-columns:1fr; }
  .footer-top{ grid-template-columns:1fr; }
  .band-row{ align-items:flex-start; }
}