/* proVobis — design tokens ------------------------------------------- */
:root{
  --bg: #10151c;
  --surface: #1a222c;
  --surface-2: #212b37;
  --ink: #edf1f5;
  --ink-dim: #9fb0c2;
  --paper: #f5f7fa;
  --paper-ink: #1b2430;
  --paper-dim: #5a6b7d;
  --slate: #34485d;
  --blue: #4185d7;
  --blue-bright: #7bb0ec;
  --copper: #d98c4a;
  --copper-bright: #f0a869;
  --grid-line: rgba(65,133,215,0.14);
  --hair: rgba(237,241,245,0.12);
  --hair-paper: rgba(27,36,48,0.12);

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

  --max: 1180px;
  --edge: clamp(20px, 5vw, 64px);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -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; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

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

/* Blueprint grid background --------------------------------------- */
.blueprint{
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 42px 42px;
}

/* Layout shells ------------------------------------------------------ */
.wrap{ max-width: var(--max); margin: 0 auto; padding: 0 var(--edge); }
.section{ padding: 96px 0; }
.section--tight{ padding: 64px 0; }
.on-paper{ background: var(--paper); color: var(--paper-ink); }

/* Eyebrow / schematic label -------------------------------------- */
.eyebrow{
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--copper-bright);
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom: 18px;
}
.on-paper .eyebrow{ color: var(--copper); }
.eyebrow::before{
  content:"";
  width: 18px; height: 1px;
  background: currentColor;
}

/* Trace divider ------------------------------------------------------ */
.trace{
  position: relative;
  height: 1px;
  background: var(--hair);
  margin: 0;
}
.on-paper .trace{ background: var(--hair-paper); }
.trace::before, .trace::after{
  content:"";
  position:absolute;
  top:50%; transform: translateY(-50%);
  width:5px; height:5px;
  border-radius:50%;
  background: var(--blue);
}
.trace::before{ left: var(--edge); }
.trace::after{ right: var(--edge); }

/* Nav ------------------------------------------------------------------ */
.nav{
  position: sticky; top:0; z-index: 50;
  background: rgba(16,21,28,0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hair);
}
.nav .wrap{ display:flex; align-items:center; justify-content:space-between; height:84px; }
.brand{ display:flex; align-items:center; gap:10px; font-family: var(--display); font-weight:600; font-size:18px; }
.brand img{ height: 54px; width:auto; }
.navlinks{ display:flex; align-items:center; gap: 36px; font-size: 14.5px; }
.navlinks a{ color: var(--ink-dim); transition: color .15s ease; position:relative; padding: 4px 0;}
.navlinks a:hover, .navlinks a[aria-current="page"]{ color: var(--ink); }
.navlinks a[aria-current="page"]::after{
  content:"";
  position:absolute; left:0; right:0; bottom:-6px; height:2px; background: var(--copper);
}
.nav-cta{
  font-family: var(--mono); font-size:13px; letter-spacing:.03em;
  border: 1px solid var(--blue); color: var(--blue-bright) !important;
  padding: 9px 16px; border-radius: 3px;
  transition: background .15s ease, color .15s ease;
}
.nav-cta:hover{ background: var(--blue); color: var(--bg) !important; }
.navtoggle{ display:none; }

@media (max-width: 860px){
  .navlinks{
    position: fixed; inset: 84px 0 0 0; background: var(--bg);
    flex-direction: column; align-items:flex-start; gap: 0;
    padding: 12px var(--edge) 32px;
    transform: translateY(-8px);
    opacity: 0; visibility: hidden;
    transition: opacity .18s ease, transform .18s ease, visibility .18s;
    border-top: 1px solid var(--hair);
  }
  .navlinks a{ width:100%; padding: 16px 0; border-bottom: 1px solid var(--hair); }
  .navlinks.open{ opacity:1; visibility:visible; transform: translateY(0); }
  .navtoggle{
    display:flex; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:8px;
  }
  .navtoggle span{ width:22px; height:2px; background: var(--ink); display:block; }
}

/* Buttons -------------------------------------------------------------- */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family: var(--mono); font-size: 13.5px; letter-spacing: .03em;
  padding: 14px 24px; border-radius: 3px;
  border: 1px solid transparent;
  cursor:pointer; transition: transform .15s ease, background .15s ease, border-color .15s ease, color .15s ease;
}
.btn:hover{ transform: translateY(-1px); }
.btn--primary{ background: var(--copper); color: #17110a; }
.btn--primary:hover{ background: var(--copper-bright); }
.btn--ghost{ border-color: var(--hair); color: var(--ink); }
.btn--ghost:hover{ border-color: var(--blue); color: var(--blue-bright); }
.on-paper .btn--ghost{ border-color: var(--hair-paper); color: var(--paper-ink); }

/* Hero ------------------------------------------------------------------ */
.hero{ padding: 84px 0 80px; }
.hero-grid{ display:grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items:center; }
.hero h1{ font-size: clamp(34px, 4.6vw, 56px); line-height: 1.06; margin-bottom: 22px; }
.hero h1 span{ color: var(--blue-bright); }
.hero p.lede{ font-size: 18px; color: var(--ink-dim); max-width: 46ch; margin-bottom: 34px; }
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; margin-bottom: 40px; }
.hero-meta{ display:flex; gap:28px; font-family: var(--mono); font-size: 12.5px; color: var(--ink-dim); flex-wrap:wrap; }
.hero-meta b{ color: var(--ink); font-weight: 600; }

@media (max-width: 900px){
  .hero-grid{ grid-template-columns: 1fr; }
}

/* Pillars / cards -------------------------------------------------------- */
.grid-4{ display:grid; grid-template-columns: repeat(4,1fr); gap: 1px; background: var(--hair); border:1px solid var(--hair); }
.on-paper .grid-4{ background: var(--hair-paper); border-color: var(--hair-paper); }
.grid-2{ display:grid; grid-template-columns: repeat(2,1fr); gap: 1px; background: var(--hair); border:1px solid var(--hair); }
@media (max-width: 900px){ .grid-4{ grid-template-columns: repeat(2,1fr);} }
@media (max-width: 560px){ .grid-4, .grid-2{ grid-template-columns: 1fr; } }

.pillar{
  background: var(--bg);
  padding: 34px 28px;
  position:relative;
}
.on-paper .pillar{ background: var(--paper); }
.pillar .num{ font-family: var(--mono); font-size:12.5px; color: var(--copper); margin-bottom: 18px; display:block; }
.pillar h3{ font-size: 19px; margin-bottom: 10px; }
.pillar p{ font-size:14.5px; color: var(--ink-dim); }
.on-paper .pillar p{ color: var(--paper-dim); }

/* Section headers */
.sec-head{ display:flex; justify-content:space-between; align-items:flex-end; gap: 24px; margin-bottom: 44px; flex-wrap:wrap; }
.sec-head h2{ font-size: clamp(26px, 3vw, 36px); max-width: 20ch; }
.sec-head p{ color: var(--ink-dim); max-width: 40ch; font-size:15px; }
.on-paper .sec-head p{ color: var(--paper-dim); }

/* Case study / portfolio cards */
.case-card{
  border:1px solid var(--hair); border-radius:4px; padding: 28px;
  display:flex; flex-direction:column; gap:16px; height:100%;
  transition: border-color .15s ease;
}
.case-card:hover{ border-color: var(--blue); }
.case-tags{ display:flex; flex-wrap:wrap; }
.case-tag + .case-tag::before{ content:"|"; color:var(--ink-dim); margin:0 7px; }
.case-tag{ font-family:var(--mono); font-size:11.5px; letter-spacing:.08em; text-transform:uppercase; color: var(--blue-bright); }
.case-card h3{ font-size: 20px; }
.case-card p{ color: var(--ink-dim); font-size: 14.5px; }
.case-stats{ display:flex; gap: 22px; margin-top:auto; padding-top:16px; border-top:1px solid var(--hair); }
.case-stats div{ font-family: var(--mono); }
.case-stats b{ display:block; font-size:18px; color: var(--ink); }
.case-stats span{ font-size:11px; color: var(--ink-dim); text-transform:uppercase; letter-spacing:.05em; }

/* Footer ---------------------------------------------------------------- */
footer{ border-top: 1px solid var(--hair); padding: 56px 0 32px; }
.foot-grid{ display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 48px; }
.foot-brand{ display:flex; align-items:center; gap:10px; font-family: var(--display); font-weight:600; margin-bottom:14px; }
.foot-brand img{ height:38px; }
footer p{ color: var(--ink-dim); font-size:14px; max-width:34ch; }
.foot-col h4{ font-family: var(--mono); font-size:12px; letter-spacing:.08em; text-transform:uppercase; color: var(--ink-dim); margin-bottom:16px; }
.foot-col a{ display:block; color: var(--ink-dim); font-size:14.5px; padding: 6px 0; transition:color .15s; }
.foot-col a:hover{ color: var(--ink); }
.foot-bottom{ display:flex; justify-content:space-between; font-family:var(--mono); font-size:12px; color: var(--ink-dim); flex-wrap:wrap; gap:10px; }
@media (max-width: 780px){ .foot-grid{ grid-template-columns: 1fr 1fr; } }

/* Utility */
.mono{ font-family: var(--mono); }
.center{ text-align:center; }
.stack{ display:flex; flex-direction:column; gap:8px; }

/* Page hero (interior pages) */
.page-hero{ padding: 64px 0 56px; }
.page-hero .eyebrow{ margin-bottom: 20px; }
.page-hero h1{ font-size: clamp(30px, 4vw, 46px); max-width: 22ch; margin-bottom: 16px; }
.page-hero p{ color: var(--ink-dim); max-width: 56ch; font-size: 16.5px; }

/* Forms */
.field{ display:flex; flex-direction:column; gap:8px; margin-bottom:22px; }
.field label{ font-family: var(--mono); font-size:12px; letter-spacing:.05em; text-transform:uppercase; color: var(--ink-dim); }
.field input, .field textarea, .field select{
  background: var(--surface); border:1px solid var(--hair); color: var(--ink);
  border-radius:3px; padding: 13px 14px; font-family: var(--body); font-size:15px;
}
.field textarea{ resize:vertical; min-height:130px; }
.field input::placeholder, .field textarea::placeholder{ color: #5c6b7c; }

/* Scroll reveal */
[data-reveal]{ opacity:0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
[data-reveal].is-visible{ opacity:1; transform:none; }

/* Contact info rows */
.info-row{ display:flex; gap:16px; padding: 18px 0; border-bottom:1px solid var(--hair); }
.info-row .k{ font-family:var(--mono); font-size:12px; color: var(--ink-dim); width: 120px; flex-shrink:0; text-transform:uppercase; letter-spacing:.05em; }
.info-row .v{ font-size:15px; }