:root {
  /* Colors sampled from the Excelsior logo */
  --navy: #0b4a7d;
  --blue: #0a84e1;
  --blue-soft: #e8f3fd;
  --red: #d93a32;
  --bg: #ffffff;
  --bg-alt: #f4f8fc;
  --border: #dbe6f1;
  --text: #0e2238;
  --muted: #5a6b80;

  --font-head: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  --radius: 14px;
  --nav-h: 76px;
  --shadow: 0 1px 2px rgba(11, 74, 125, .06), 0 8px 24px rgba(11, 74, 125, .07);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; background: none; border: 0; cursor: pointer; }

.container { width: min(1160px, 100% - 48px); margin-inline: auto; }
.center { text-align: center; }
.muted { color: var(--muted); }

h1, h2, h3 { font-family: var(--font-head); line-height: 1.12; letter-spacing: -0.02em; color: var(--navy); }
h1 { font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 700; }
h2 { font-size: clamp(1.9rem, 3.4vw, 2.7rem); font-weight: 700; margin-bottom: 20px; }
h3 { font-size: 1.2rem; font-weight: 600; }
.accent { color: var(--blue); }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 60ch; }
.eyebrow, .section-tag { font-family: var(--font-mono); font-size: .85rem; color: var(--blue); margin-bottom: 14px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 13px 22px; border-radius: 10px;
  font-weight: 600; font-size: .98rem;
  border: 1.5px solid transparent;
  transition: background .2s, border-color .2s, transform .2s, color .2s;
}
.btn:hover { transform: translateY(-1px); }
.btn-sm { padding: 9px 16px; font-size: .9rem; }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--navy); }
.btn-ghost { border-color: var(--border); color: var(--navy); background: #fff; }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.btn-danger { border-color: rgba(217, 58, 50, .35); color: var(--red); background: #fff; }
.btn-danger:hover { border-color: var(--red); }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  height: var(--nav-h);
  background: rgba(255, 255, 255, .9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s, box-shadow .2s;
}
.nav.scrolled { border-color: var(--border); box-shadow: 0 2px 12px rgba(11, 74, 125, .05); }
.nav-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; }
.brand img { height: 60px; width: auto; }
.nav-links { display: flex; align-items: center; gap: 30px; font-weight: 500; color: var(--muted); }
.nav-links a:not(.btn):hover { color: var(--blue); }
.nav-toggle { display: none; width: 40px; height: 40px; flex-direction: column; justify-content: center; gap: 6px; }
.nav-toggle span { display: block; height: 2px; background: var(--navy); border-radius: 2px; }

/* ---------- Hero ---------- */
.hero {
  padding: 80px 0 96px;
  background:
    radial-gradient(800px 400px at 85% 30%, var(--blue-soft), transparent 70%),
    var(--bg);
}
.hero-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 48px; align-items: center; }
.hero-copy .lead { margin: 22px 0 18px; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-mark { display: flex; justify-content: center; }
.hero-mark img { width: min(520px, 100%); mix-blend-mode: multiply; }

/* ---------- Sections ---------- */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); border-block: 1px solid var(--border); }

.services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 36px; }
.service {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow);
  transition: transform .2s, border-color .2s;
}
.service:hover { transform: translateY(-3px); border-color: var(--blue); }
.service-idx { font-family: var(--font-mono); font-size: .8rem; color: var(--blue); }
.service h3 { margin: 10px 0 8px; }
.service p { color: var(--muted); font-size: .96rem; }

.steps { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 36px; counter-reset: s; }
.steps li { position: relative; padding-top: 18px; border-top: 3px solid var(--blue-soft); }
.steps li:first-child { border-top-color: var(--blue); }
.step-num {
  display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%;
  background: var(--blue); color: #fff; font-family: var(--font-mono); font-weight: 500; margin-bottom: 14px;
}
.steps h3 { margin-bottom: 6px; }
.steps p { color: var(--muted); font-size: .96rem; }

.chips { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.chips li {
  font-family: var(--font-mono); font-size: .8rem; color: var(--navy);
  background: var(--blue-soft); border-radius: 999px; padding: 6px 14px;
}

/* ---------- Contact ---------- */
.cta-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 36px; }
.cta-card {
  display: flex; flex-direction: column; gap: 12px;
  padding: 34px; border-radius: var(--radius);
  background: #fff; border: 1.5px solid var(--border); box-shadow: var(--shadow);
  transition: transform .2s, border-color .2s;
}
.cta-card:hover { transform: translateY(-3px); border-color: var(--blue); }
.cta-card h3 { font-size: 1.5rem; }
.cta-kicker { font-family: var(--font-mono); font-size: .82rem; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.cta-link { font-weight: 600; color: var(--blue); }
.cta-urgent { background: linear-gradient(140deg, #fdecea, #fff 60%); border-color: rgba(217, 58, 50, .3); }
.cta-urgent:hover { border-color: var(--red); }
.cta-urgent .cta-kicker, .cta-urgent .cta-link { color: var(--red); }

/* ---------- Footer ---------- */
.footer { background: var(--navy); color: #cfe1f3; padding: 36px 0 28px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-mark { height: 56px; width: auto; background: #fff; border-radius: 8px; padding: 4px 8px; }
.footer nav { display: flex; gap: 24px; }
.footer nav a:hover { color: #fff; }
.footer .muted { color: #9fbbd6; }
.disclaimer { margin-top: 20px; font-size: .82rem; color: #9fbbd6; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .services { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--border);
    padding: 8px 24px 20px; display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; }
  .nav-links .btn { margin-top: 8px; }
  .brand img { height: 42px; }
  .hero { padding: 48px 0 64px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-mark { order: -1; }
  .hero-mark img { width: 280px; }
  .section { padding: 64px 0; }
  .services, .steps, .cta-pair { grid-template-columns: 1fr; }
}

/* ---------- Red team services ---------- */
.service-red { background: linear-gradient(160deg, #fdeeed, #fff 55%); border-color: rgba(217, 58, 50, .28); }
.service-red:hover { border-color: var(--red); }
.service-red .service-idx { color: var(--red); }
.services-note {
  margin-top: 22px; padding: 14px 18px; border-radius: 10px;
  background: #fff; border: 1px solid var(--border);
  font-size: .92rem; color: var(--muted);
}

/* ---------- Service categories (homepage) ---------- */
.cat-list { list-style: none; margin-top: 36px; border-top: 1px solid var(--border); }
.cat-list li { border-bottom: 1px solid var(--border); }
.cat {
  display: grid; grid-template-columns: 72px minmax(0, 1fr) minmax(0, 1.25fr);
  gap: 32px; align-items: start;
  padding: 34px 12px; border-radius: 10px;
  transition: background .2s;
}
.cat:hover { background: #fff; }
.cat-num { font-family: var(--font-mono); font-size: 1.6rem; font-weight: 500; color: var(--blue); line-height: 1.2; }
.cat-red .cat-num, .cat-num-red { color: var(--red); }
.cat-name { font-size: 1.5rem; }
.cat-body p { color: var(--muted); margin-bottom: 12px; }
.cat-link { font-weight: 600; color: var(--blue); transition: margin-left .2s; }
.cat-red .cat-link { color: var(--red); }
.cat:hover .cat-link { margin-left: 6px; }

/* ---------- Services page ---------- */
.page-head {
  padding: 56px 0 48px;
  background: radial-gradient(700px 300px at 85% 20%, var(--blue-soft), transparent 70%), var(--bg);
  border-bottom: 1px solid var(--border);
}
.page-head .lead { margin: 14px 0 28px; }
.back-link { display: inline-block; font-size: .92rem; color: var(--muted); margin-bottom: 18px; }
.back-link:hover { color: var(--blue); }
.jump { display: flex; flex-wrap: wrap; gap: 10px; }
.jump a {
  padding: 8px 16px; border-radius: 999px; border: 1px solid var(--border);
  background: #fff; font-weight: 500; color: var(--navy); font-size: .92rem;
}
.jump a:hover { border-color: var(--blue); color: var(--blue); }
.jump span { font-family: var(--font-mono); color: var(--blue); margin-right: 4px; }
.group-head { display: flex; gap: 22px; align-items: baseline; }
.group-head h2 { margin-bottom: 6px; }
.svc-group .services { margin-top: 30px; }
.svc-group:target .group-head h2 { color: var(--blue); }

@media (max-width: 720px) {
  .cat { grid-template-columns: 44px 1fr; gap: 10px 16px; padding: 26px 4px; }
  .cat-body { grid-column: 2; }
  .cat-num { font-size: 1.2rem; }
  .cat-name { font-size: 1.25rem; }
  .group-head { gap: 14px; }
}

/* ---------- Hero tagline: security from day zero ---------- */
.hero-tagline {
  font-family: var(--font-head); font-weight: 600;
  font-size: clamp(1.15rem, 1.8vw, 1.4rem); line-height: 1.4;
  color: var(--navy); margin-bottom: 34px;
}
.hl {
  color: var(--blue);
}