:root{
  --teal:#2F4F4F;          /* Operational Teal */
  --white:#FFFFFF;        /* Clarity White */
  --charcoal:#2B2B2B;     /* Charcoal Control */
  --soft-gray:#E6EAEA;    /* Soft Structure Gray */
  --signal:#4A90A4;       /* Signal Blue (accent) */

  --max:1120px;
  --radius:12px;
  --shadow: 0 10px 30px rgba(0,0,0,.06);

  --h1: clamp(2rem, 3.2vw, 3.1rem);
  --h2: clamp(1.5rem, 2.1vw, 2.1rem);
  --h3: 1.15rem;
  --body: 1rem;
  --small: .92rem;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
               Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  color:var(--charcoal);
  background:var(--white);
  line-height:1.6;
}
a{color:inherit; text-decoration:none}
img{max-width:100%; display:block}
.container{max-width:var(--max); margin:0 auto; padding:0 24px}
.hr{border-top:1px solid var(--soft-gray)}
.badge{
  display:inline-flex; align-items:center; gap:8px;
  padding:6px 12px; border:1px solid var(--soft-gray); border-radius:999px;
  font-size:var(--small); color:rgba(43,43,43,.8); background:rgba(230,234,234,.35);
}
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding:12px 18px; border-radius:10px; border:1px solid transparent;
  font-weight:600; font-size:var(--small); cursor:pointer;
}
.btn-primary{background:var(--teal); color:var(--white)}
.btn-primary:hover{filter:brightness(0.96)}
.btn-ghost{border-color:rgba(47,79,79,.35); color:var(--teal); background:transparent}
.btn-ghost:hover{background:rgba(47,79,79,.06)}
.kbd{
  font-size:.8rem; border:1px solid var(--soft-gray); border-bottom-color:rgba(0,0,0,.18);
  padding:2px 6px; border-radius:6px; background:rgba(230,234,234,.35);
}

/* Header */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(255,255,255,.9);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--soft-gray);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  height:72px;
}
.brand{
  display:flex; align-items:baseline; gap:10px;
  font-weight:800; letter-spacing:.2px;
}
.brand .name{
  font-size:1.15rem; color:var(--teal);
}
.brand .tag{
  font-size:.9rem; color:rgba(43,43,43,.65); font-weight:600;
}
.nav{
  display:flex; align-items:center; gap:22px;
  font-size:var(--small);
}
.nav a{color:rgba(43,43,43,.86)}
.nav a:hover{color:var(--teal)}
.nav .nav-cta{margin-left:6px}
.menu-btn{
  display:none;
  width:42px; height:42px; border-radius:12px;
  border:1px solid var(--soft-gray); background:rgba(230,234,234,.25);
}
.menu-btn:hover{background:rgba(230,234,234,.5)}
.menu-panel{
  display:none;
  border-top:1px solid var(--soft-gray);
  background:var(--white);
}
.menu-panel a{
  display:block; padding:14px 24px;
  border-bottom:1px solid rgba(230,234,234,.7);
  color:rgba(43,43,43,.9);
}
.menu-panel a:last-child{border-bottom:none}

/* Sections */
.section{padding:72px 0}
.section.tight{padding:56px 0}
.section-title{
  display:flex; flex-direction:column; gap:10px;
  margin-bottom:22px;
}
.section-title h2{margin:0; font-size:var(--h2); line-height:1.2}
.section-title p{margin:0; max-width:760px; color:rgba(43,43,43,.78)}
.hero{
  padding:76px 0 48px;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap:40px;
  align-items:start;
}
.hero h1{margin:10px 0 14px; font-size:var(--h1); line-height:1.1}
.hero p{margin:0 0 22px; max-width:720px; font-size:1.06rem; color:rgba(43,43,43,.78)}
.hero-card{
  border:1px solid var(--soft-gray);
  border-radius:var(--radius);
  padding:22px;
  background:linear-gradient(180deg, rgba(230,234,234,.45), rgba(255,255,255,.65));
  box-shadow:var(--shadow);
}
.hero-card h3{margin:0 0 10px; font-size:var(--h3)}
.hero-card ul{margin:0; padding-left:18px}
.hero-card li{margin:8px 0; color:rgba(43,43,43,.78)}
.actions{display:flex; gap:12px; flex-wrap:wrap; margin-top:10px}

.grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:18px;
}
.card{
  border:1px solid var(--soft-gray);
  border-radius:var(--radius);
  padding:22px;
  background:var(--white);
}
.card h3{margin:0 0 10px; font-size:var(--h3)}
.card p{margin:0; color:rgba(43,43,43,.78)}
.muted{color:rgba(43,43,43,.72)}
.split{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:24px;
}
.callout{
  border:1px solid rgba(47,79,79,.25);
  background:rgba(47,79,79,.06);
  border-radius:var(--radius);
  padding:18px 20px;
}
.callout strong{color:var(--teal)}
.list{
  margin:10px 0 0; padding-left:18px;
}
.list li{margin:8px 0; color:rgba(43,43,43,.78)}

/* Footer */
.site-footer{
  background:var(--teal);
  color:rgba(255,255,255,.92);
  padding:52px 0;
  margin-top:40px;
}
.footer-grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap:20px;
  align-items:start;
}
.footer-grid a{color:rgba(255,255,255,.92)}
.footer-grid a:hover{text-decoration:underline}
.footer-small{margin-top:18px; font-size:.88rem; color:rgba(255,255,255,.78)}

/* Responsive */
@media (max-width: 980px){
  .hero-grid{grid-template-columns:1fr; gap:18px}
  .grid{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .nav{display:none}
  .menu-btn{display:inline-flex; align-items:center; justify-content:center}
  .menu-panel.open{display:block}
}