/* ===== OAO Solutions — design tokens ===== */
:root{
  --navy-950:#080D1C;
  --navy-900:#0B1226;
  --navy-800:#101A33;
  --navy-700:#172645;
  --gold-500:#C9973F;
  --gold-300:#E3BE7A;
  --paper-100:#F4EFE3;
  --paper-200:#E9E1CC;
  --ink-900:#0D1220;
  --slate-300:#A9B4C9;
  --slate-500:#6E7D9C;
  --white:#FFFFFF;

  --font-display:'Fraunces', Georgia, serif;
  --font-body:'Source Serif 4', Georgia, serif;
  --font-mono:'IBM Plex Mono', 'Courier New', monospace;

  --container:1180px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--navy-950);
  color:var(--slate-300);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:var(--font-display);
  color:var(--white);
  margin:0 0 0.5em;
  font-weight:600;
  letter-spacing:-0.01em;
}
a{color:var(--gold-300); text-decoration:none;}
a:hover{color:var(--gold-500);}
:focus-visible{outline:2px solid var(--gold-300); outline-offset:3px;}
img,svg{max-width:100%; display:block;}
.container{max-width:var(--container); margin:0 auto; padding:0 32px;}
.eyebrow{
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--gold-500);
  margin-bottom:14px;
  display:block;
}
p{color:var(--slate-300);}
.lede{font-size:20px; color:var(--slate-300); max-width:640px;}

/* ===== Nav ===== */
.site-nav{
  position:sticky; top:0; z-index:50;
  background:rgba(8,13,28,0.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(169,180,201,0.14);
}
.site-nav .inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:18px 32px;
}
.brand{
  font-family:var(--font-display);
  font-size:20px;
  color:var(--white);
  font-weight:700;
  letter-spacing:0.01em;
  display:flex; align-items:center; gap:10px;
}
.brand .mark{
  width:26px;height:26px;
  border:1.5px solid var(--gold-500);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono); font-size:11px; color:var(--gold-500);
}
.nav-links{display:flex; align-items:center; gap:36px; list-style:none; margin:0; padding:0;}
.nav-links a{
  color:var(--slate-300);
  font-family:var(--font-body);
  font-size:15.5px;
}
.nav-links a.active, .nav-links a:hover{color:var(--white);}
.nav-cta{
  border:1px solid var(--gold-500);
  color:var(--gold-300) !important;
  padding:9px 18px;
  font-size:14.5px !important;
  font-family:var(--font-mono) !important;
}
.nav-cta:hover{background:var(--gold-500); color:var(--navy-950) !important;}
.nav-toggle{display:none; background:none; border:none; color:var(--white); font-size:26px; cursor:pointer;}

/* ===== Buttons ===== */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:13px 24px;
  font-family:var(--font-mono);
  font-size:14.5px;
  letter-spacing:0.02em;
  border-radius:2px;
  cursor:pointer;
  border:1px solid transparent;
}
.btn-primary{background:var(--gold-500); color:var(--navy-950); font-weight:600;}
.btn-primary:hover{background:var(--gold-300); color:var(--navy-950);}
.btn-outline{border-color:rgba(169,180,201,0.4); color:var(--white) !important;}
.btn-outline:hover{border-color:var(--gold-300); color:var(--gold-300) !important;}
.btn-row{display:flex; gap:14px; flex-wrap:wrap; margin-top:32px;}

/* ===== Sections ===== */
section{padding:96px 0;}
.section-head{max-width:680px; margin-bottom:56px;}
.section-tight .section-head{margin-bottom:40px;}
hr.rule{border:none; border-top:1px solid rgba(169,180,201,0.16); margin:0;}

/* ===== Hero ===== */
.hero{padding:88px 0 100px;}
.hero .inner{
  display:grid; grid-template-columns:1.05fr 0.95fr; gap:64px; align-items:center;
}
.hero h1{font-size:48px; line-height:1.08; max-width:560px;}
.hero .lede{margin-top:20px;}

/* ===== Stat bar ===== */
.stat-bar{
  background:var(--navy-900);
  border-top:1px solid rgba(169,180,201,0.14);
  border-bottom:1px solid rgba(169,180,201,0.14);
}
.stat-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:0;}
.stat{
  padding:44px 28px;
  border-left:1px solid rgba(169,180,201,0.14);
}
.stat:first-child{border-left:none;}
.stat .num{font-family:var(--font-mono); font-size:34px; color:var(--gold-300); display:block; margin-bottom:8px;}
.stat .label{font-size:14.5px; color:var(--slate-500); line-height:1.45;}

/* ===== Cards ===== */
.card-grid{display:grid; gap:24px;}
.card{
  background:var(--navy-900);
  border:1px solid rgba(169,180,201,0.14);
  padding:32px;
}
.card h3{font-size:20px; margin-bottom:12px;}
.card p{font-size:15.5px; margin:0;}
.card .tag{
  font-family:var(--font-mono); font-size:12px; color:var(--gold-500);
  text-transform:uppercase; letter-spacing:0.08em; margin-bottom:14px; display:block;
}

/* ===== Layer diagram ===== */
.layer-grid{display:grid; grid-template-columns:1fr 1fr; gap:2px; background:rgba(169,180,201,0.14);}
.layer-panel{background:var(--navy-900); padding:36px;}
.layer-panel .layer-num{font-family:var(--font-mono); color:var(--gold-500); font-size:13px; letter-spacing:0.1em;}
.layer-panel h3{margin-top:10px; font-size:22px;}
.layer-panel ul{padding-left:0; list-style:none; margin-top:20px;}
.layer-panel li{
  padding:12px 0; border-top:1px solid rgba(169,180,201,0.12);
  font-size:15px; display:flex; gap:10px;
}
.layer-panel li:first-child{border-top:none;}
.layer-panel li .k{color:var(--slate-500); min-width:82px; font-family:var(--font-mono); font-size:12.5px; text-transform:uppercase; letter-spacing:0.05em; padding-top:2px;}

/* ===== CTA band ===== */
.cta-band{
  background:linear-gradient(180deg, var(--navy-900), var(--navy-800));
  border:1px solid rgba(201,151,63,0.3);
  padding:56px;
  display:flex; align-items:center; justify-content:space-between; gap:40px; flex-wrap:wrap;
}
.cta-band h3{font-size:26px; max-width:420px; margin-bottom:8px;}

/* ===== Audience cards ===== */
.audience-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:24px;}
.audience-card{
  background:var(--navy-900); border:1px solid rgba(169,180,201,0.14); padding:30px;
  transition:border-color .2s;
}
.audience-card:hover{border-color:var(--gold-500);}
.audience-card .icon{width:38px; height:38px; margin-bottom:20px; color:var(--gold-500);}
.audience-card h3{font-size:18px;}
.audience-card p{font-size:14.5px;}
.audience-card a.card-link{display:inline-block; margin-top:16px; font-family:var(--font-mono); font-size:13.5px;}

/* ===== Footer ===== */
footer{border-top:1px solid rgba(169,180,201,0.14); padding:52px 0 40px;}
.footer-grid{display:flex; justify-content:space-between; align-items:flex-start; gap:40px; flex-wrap:wrap;}
.footer-cols{display:flex; gap:64px; flex-wrap:wrap;}
.footer-col h4{font-family:var(--font-mono); font-size:12.5px; text-transform:uppercase; letter-spacing:0.08em; color:var(--slate-500); margin-bottom:14px;}
.footer-col a{display:block; color:var(--slate-300); font-size:14.5px; margin-bottom:9px;}
.footer-col a:hover{color:var(--gold-300);}
.footer-bottom{margin-top:48px; font-size:13px; color:var(--slate-500); display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;}

/* ===== Page hero (interior pages) ===== */
.page-hero{padding:64px 0 56px; border-bottom:1px solid rgba(169,180,201,0.14);}
.page-hero h1{font-size:40px; max-width:680px;}

/* ===== Jurisdiction models (product page) ===== */
.model-list{display:flex; flex-direction:column; gap:2px; background:rgba(169,180,201,0.14);}
.model-row{
  background:var(--navy-900);
  display:grid; grid-template-columns:64px 1fr 1fr auto; gap:28px; align-items:center;
  padding:28px 32px;
}
.model-row .rank{font-family:var(--font-mono); color:var(--gold-500); font-size:22px;}
.model-row h4{font-size:18px; margin-bottom:6px;}
.model-row p{font-size:14.5px; margin:0;}
.model-row .rate{font-family:var(--font-mono); font-size:14px; color:var(--gold-300); text-align:right; white-space:nowrap;}

/* ===== Table ===== */
table.data-table{width:100%; border-collapse:collapse; font-size:14.5px;}
table.data-table th{
  font-family:var(--font-mono); font-size:11.5px; text-transform:uppercase; letter-spacing:0.06em;
  color:var(--slate-500); text-align:left; padding:12px 16px; border-bottom:1px solid rgba(169,180,201,0.2);
}
table.data-table td{padding:14px 16px; border-bottom:1px solid rgba(169,180,201,0.1); color:var(--slate-300);}
table.data-table tr:hover td{background:rgba(201,151,63,0.04);}

/* ===== Form ===== */
form.contact-form{display:flex; flex-direction:column; gap:20px; max-width:560px;}
.form-row{display:grid; grid-template-columns:1fr 1fr; gap:20px;}
label{font-family:var(--font-mono); font-size:12.5px; text-transform:uppercase; letter-spacing:0.06em; color:var(--slate-500); display:block; margin-bottom:8px;}
input,select,textarea{
  width:100%; background:var(--navy-900); border:1px solid rgba(169,180,201,0.25);
  color:var(--white); padding:12px 14px; font-family:var(--font-body); font-size:15px; border-radius:2px;
}
input:focus,select:focus,textarea:focus{border-color:var(--gold-500); outline:none;}
textarea{resize:vertical; min-height:120px;}
.form-note{font-size:13.5px; color:var(--slate-500);}

/* ===== Contact info cards ===== */
.contact-split{display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:start;}
.contact-channel{padding:22px 0; border-top:1px solid rgba(169,180,201,0.14);}
.contact-channel:first-child{border-top:none;}
.contact-channel .k{font-family:var(--font-mono); font-size:12px; text-transform:uppercase; letter-spacing:0.06em; color:var(--gold-500); margin-bottom:6px; display:block;}

/* ===== Responsive ===== */
@media (max-width: 900px){
  .hero .inner{grid-template-columns:1fr;}
  .hero h1{font-size:36px;}
  .stat-grid{grid-template-columns:1fr 1fr;}
  .stat{border-left:none; border-top:1px solid rgba(169,180,201,0.14);}
  .stat:nth-child(1),.stat:nth-child(2){border-top:none;}
  .layer-grid{grid-template-columns:1fr;}
  .audience-grid{grid-template-columns:1fr;}
  .model-row{grid-template-columns:1fr; text-align:left;}
  .model-row .rate{text-align:left;}
  .contact-split{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .nav-links{
    position:fixed; top:64px; left:0; right:0; bottom:0;
    background:var(--navy-950); flex-direction:column; padding:32px; gap:24px;
    transform:translateX(100%); transition:transform .25s ease;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-toggle{display:block;}
}