:root {
  --navy:#24384C;
  --steel:#70879A;
  --mist:#F4F6F8;
  --accent:#3E6EA1;
  --gold:#B89B66;
}

body {
  margin:0;
  font-family: Inter, sans-serif;
  background: var(--mist);
  color: var(--navy);
}

.container {
  width:90%;
  max-width:1200px;
  margin:auto;
}

.vs-header {
  background:#fff;
  padding:20px 0;
  display:flex;
}

.logo {
  height:50px;
  width: auto;
}

.hero {
  padding:120px 0;
  text-align:center;
}

.hero h1 {
  font-size:48px;
}

.btn {
  background:var(--accent);
  color:#fff;
  padding:14px 28px;
  text-decoration:none;
  border-radius:6px;
}

.grid {
  display:grid;
  grid-template-columns: repeat(3,1fr);
  gap:30px;
}

.cta {
  text-align:center;
  padding:80px 0;
}

.vs-footer {
  text-align:center;
  padding:40px 0;
}

@media(max-width:768px) {
  .grid {
    grid-template-columns:1fr;
  }
  .hero h1 {
    font-size:32px;
  }
}

.vs-header {
  position: sticky;
  width: 100%;
  top: 0;
  background: #fff;
  transition: all 0.3s ease;
  z-index: 100;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.vs-header.sticky {
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.header-inner {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
}

section {
  padding:100px 0;
}

h1, h2, h3 {
  letter-spacing:-0.5px;
}

.btn.small {
  padding:10px 18px;
  font-size:14px;
}

/* Horizontal nav menu */
.nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 32px;
}

.nav ul li {
  margin: 0;
}

.nav ul li a {
  text-decoration: none;
  color: #1a2f6e;
  font-size: 15px;
  font-weight: 500;
  white-space: nowrap;
  transition: color 0.2s;
}

.nav ul li a:hover {
  color: #2a4db5;
}

/* ── Hamburger button ── */
.vs-hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 200;
}

.vs-hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: #1a2f6e;
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

/* Animate to X when open */
.vs-hamburger.is-open span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}
.vs-hamburger.is-open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.vs-hamburger.is-open span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* ── Mobile breakpoint ── */
@media (max-width: 768px) {

  .vs-hamburger {
    display: flex;
  }

  .header-inner {
    flex-wrap: wrap;
    position: relative;
  }

  /* Hide Book Call button on mobile or move it into nav */
  .header-inner > .btn.small {
    display: none;
  }

  /* Nav hidden by default on mobile */
  .nav {
    display: none;
    width: 100%;
    order: 3;
  }

  .nav.is-open {
    display: block;
  }

  .nav ul {
    flex-direction: column;
    gap: 0;
    padding: 12px 0;
    border-top: 1px solid #e4eaf3;
  }

  .nav ul li a {
    display: block;
    padding: 12px 0;
    font-size: 16px;
    border-bottom: 1px solid #f0f3f8;
  }

  /* Book Call inside mobile menu */
  .nav ul::after {
    content: '';
  }
}