/* ============================================================
   OZBON DIGITAL SOLUTIONS — Design System
   Ink (#11151C) / Paper (#F6F3EC) / Brass (#C08A45) / Steel (#5C7C8A)
   Display: Fraunces · Body: Inter · Utility: JetBrains Mono
   ============================================================ */

:root{
  --ink: #11151C;
  --ink-soft: #1B212B;
  --paper: #F6F3EC;
  --paper-dim: #ECE6D8;
  --brass: #C08A45;
  --brass-bright: #D9A35F;
  --steel: #5C7C8A;
  --graphite: #2A2E35;
  --line-dark: rgba(246,243,236,0.10);
  --line-light: #DCD6C8;
  --muted-on-dark: rgba(246,243,236,0.62);
  --muted-on-light: rgba(42,46,53,0.62);

  --display: 'Fraunces', serif;
  --body: 'Inter', system-ui, -apple-system, sans-serif;
  --mono: 'JetBrains Mono', monospace;

  --max: 1180px;
  --pad: clamp(24px, 5vw, 64px);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--body);
  background: var(--paper);
  color: var(--graphite);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--brass);
  outline-offset: 3px;
}

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

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

h1,h2,h3,h4{
  font-family: var(--display);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
  line-height: 1.08;
}
h1{ font-size: clamp(2.6rem, 5.4vw, 4.6rem); font-weight: 700; }
h2{ font-size: clamp(1.9rem, 3.4vw, 2.7rem); }
h3{ font-size: clamp(1.25rem, 1.8vw, 1.5rem); font-weight: 600; }
p{ margin: 0 0 1.1em; }
.lede{ font-size: 1.18rem; color: var(--muted-on-light); max-width: 640px; }

em{ font-style: italic; color: var(--brass); font-family: var(--display); }

/* ---------- Utility / mono labels ---------- */
.eyebrow{
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brass);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 1.1em;
}
.eyebrow::before{ content:'//'; color: var(--steel); }

/* ---------- Manifest tag strip (signature element) ---------- */
.manifest{
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}
.manifest span{
  border: 1px solid var(--line-dark);
  padding: 7px 13px;
  border-radius: 3px;
  color: var(--muted-on-dark);
  white-space: nowrap;
}
.manifest span::before{ content:'['; color: var(--steel); margin-right:6px; }
.manifest span::after{ content:']'; color: var(--steel); margin-left:6px; }
.manifest.on-light span{ color: var(--muted-on-light); border-color: var(--line-light); }
.manifest.on-light span::before, .manifest.on-light span::after{ color: var(--brass); }

/* ---------- Header / Nav ---------- */
header.site{
  position: sticky; top:0; z-index: 50;
  background: rgba(17,21,28,0.92);
  backdrop-filter: saturate(140%) blur(6px);
  border-bottom: 1px solid var(--line-dark);
}
.nav-row{
  display:flex; align-items:center; justify-content:space-between;
  height: 76px;
}
.brand{
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.18rem;
  color: var(--paper);
  letter-spacing: -0.01em;
}
.brand span{ color: var(--brass); }
nav.links{ display:flex; gap: 34px; align-items:center; }
nav.links a{
  font-size: 0.92rem;
  color: var(--muted-on-dark);
  transition: color .15s ease;
}
nav.links a:hover, nav.links a.active{ color: var(--paper); }
.nav-cta{
  font-family: var(--mono);
  font-size: 0.78rem;
  border: 1px solid var(--brass);
  color: var(--brass-bright) !important;
  padding: 9px 16px;
  border-radius: 3px;
}
.nav-cta:hover{ background: var(--brass); color: var(--ink) !important; }
.nav-toggle{ display:none; background:none; border:none; color:var(--paper); font-size:1.6rem; cursor:pointer; }

@media (max-width: 820px){
  nav.links{
    position:absolute; top:76px; left:0; right:0;
    background: var(--ink); flex-direction:column; align-items:flex-start;
    padding: 20px var(--pad) 28px; gap: 18px;
    border-bottom: 1px solid var(--line-dark);
    display:none;
  }
  nav.links.open{ display:flex; }
  .nav-toggle{ display:block; }
}

/* ---------- Sections ---------- */
section{ padding: clamp(56px,9vw,108px) 0; }
.on-dark{ background: var(--ink); color: var(--paper); }
.on-dark .muted, .on-dark p{ color: var(--muted-on-dark); }
.on-dark h2, .on-dark h1{ color: var(--paper); }
.on-soft{ background: var(--paper-dim); }
.divider{ height:1px; background: var(--line-light); border:none; margin:0; }
.on-dark + .on-dark{ border-top: 1px solid var(--line-dark); }

/* ---------- Hero ---------- */
.hero{ padding-top: clamp(70px,10vw,130px); padding-bottom: clamp(60px,8vw,100px); }
.hero .wrap{ display:grid; grid-template-columns: 1.3fr 0.9fr; gap: 56px; align-items:end; }
.hero h1{ margin-bottom: 0.45em; }
.hero-aside{ border-left: 1px solid var(--line-dark); padding-left: 28px; }
.hero-aside p{ font-size:0.95rem; }
@media (max-width: 880px){
  .hero .wrap{ grid-template-columns: 1fr; }
  .hero-aside{ border-left:none; border-top:1px solid var(--line-dark); padding-left:0; padding-top:24px; }
}

.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family: var(--body); font-weight:600; font-size:0.95rem;
  padding: 14px 26px; border-radius: 3px;
  background: var(--brass); color: var(--ink);
  transition: transform .15s ease, background .15s ease;
}
.btn:hover{ background: var(--brass-bright); transform: translateY(-1px); }
.btn.ghost{
  background: transparent; color: var(--paper); border: 1px solid var(--line-dark);
}
.btn.ghost:hover{ border-color: var(--brass); color: var(--brass-bright); }
.btn-row{ display:flex; gap:14px; flex-wrap:wrap; margin-top: 1.6em; }

/* ---------- Grids / cards ---------- */
.grid{ display:grid; gap: 28px; }
.grid-3{ grid-template-columns: repeat(3, 1fr); }
.grid-2{ grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px){ .grid-3{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px){ .grid-3, .grid-2{ grid-template-columns: 1fr; } }

.card{
  border: 1px solid var(--line-light);
  background: var(--paper);
  padding: 30px 28px;
  border-radius: 4px;
}
.on-dark .card{ background: var(--ink-soft); border-color: var(--line-dark); }
.card .tag{ font-family: var(--mono); font-size:0.7rem; color: var(--steel); letter-spacing:.08em; text-transform:uppercase; }
.card h3{ margin-top:0.5em; }
.card p{ font-size:0.95rem; color: var(--muted-on-light); margin-bottom:0; }
.on-dark .card p{ color: var(--muted-on-dark); }

/* ---------- Section heading row ---------- */
.head-row{
  display:flex; justify-content:space-between; align-items:flex-end; gap:30px;
  margin-bottom: 44px; flex-wrap:wrap;
}
.head-row .lede{ margin:0; }

/* ---------- Process list ---------- */
.process-item{
  display:grid; grid-template-columns: 90px 1fr; gap: 28px;
  padding: 30px 0; border-top: 1px solid var(--line-dark);
}
.process-item:last-child{ border-bottom: 1px solid var(--line-dark); }
.process-mark{ font-family: var(--mono); color: var(--brass); font-size:0.85rem; padding-top:4px; }
.process-item h3{ margin-bottom:0.3em; }
.process-item p{ margin:0; max-width:580px; }

/* ---------- Footer ---------- */
footer.site{
  background: var(--ink); color: var(--muted-on-dark);
  padding: 56px 0 28px; border-top: 1px solid var(--line-dark);
}
.foot-top{ display:flex; justify-content:space-between; gap:40px; flex-wrap:wrap; padding-bottom: 32px; }
.foot-brand{ font-family: var(--display); color: var(--paper); font-size:1.1rem; font-weight:700; max-width: 360px; }
.foot-brand span{ color: var(--brass); }
.foot-cols{ display:flex; gap: 56px; }
.foot-col h4{ font-family: var(--mono); font-size:0.72rem; letter-spacing:.1em; text-transform:uppercase; color: var(--steel); margin-bottom:14px; font-weight:500; }
.foot-col a, .foot-col span{ display:block; font-size:0.9rem; margin-bottom:10px; color: var(--muted-on-dark); }
.foot-col a:hover{ color: var(--brass-bright); }
.foot-bottom{
  border-top: 1px solid var(--line-dark); padding-top: 22px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;
  font-size: 0.78rem;
}
.foot-address{ opacity: 0.38; font-size: 0.76rem; }
@media (max-width: 700px){ .foot-cols{ gap:32px; flex-wrap:wrap; } }

/* ---------- Contact page ---------- */
.contact-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: 60px; }
@media (max-width: 880px){ .contact-grid{ grid-template-columns: 1fr; } }
.field{ margin-bottom: 20px; }
.field label{ display:block; font-family: var(--mono); font-size:0.72rem; letter-spacing:.08em; text-transform:uppercase; color: var(--steel); margin-bottom:8px; }
.field input, .field textarea, .field select{
  width:100%; padding: 13px 14px; font-family: var(--body); font-size:0.95rem;
  background: var(--ink-soft); border: 1px solid var(--line-dark); color: var(--paper);
  border-radius: 3px;
}
.field input::placeholder, .field textarea::placeholder{ color: rgba(246,243,236,0.32); }
.field textarea{ resize: vertical; min-height: 120px; }
.check-row{ display:flex; flex-wrap:wrap; gap:10px; }
.check-row label{
  font-family: var(--mono); font-size:0.78rem; border:1px solid var(--line-dark);
  padding: 9px 13px; border-radius:3px; cursor:pointer; color: var(--muted-on-dark);
  display:flex; align-items:center; gap:8px; text-transform:none; letter-spacing:0;
}
.check-row input{ width:auto; accent-color: var(--brass); }
.check-row label:has(input:checked){ border-color: var(--brass); color: var(--brass-bright); }
.contact-note{ font-size:0.85rem; color: var(--muted-on-dark); margin-top:18px; }

/* ---------- Page intro band (Services/About/Contact) ---------- */
.page-intro{ padding-top: clamp(60px,9vw,108px); padding-bottom: 50px; }
.page-intro .wrap{ max-width: 760px; }

/* ---------- About specifics ---------- */
.values-list{ border-top: 1px solid var(--line-light); }
.value-row{ display:grid; grid-template-columns: 1fr 2.2fr; gap:30px; padding: 28px 0; border-bottom: 1px solid var(--line-light); }
.value-row h3{ margin:0; }
.value-row p{ margin:0; color: var(--muted-on-light); }
@media (max-width: 700px){ .value-row{ grid-template-columns:1fr; } }