/* =========================
   RESET
========================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #ffffff;
  color: #00112d;
}

/* =========================
   BRAND VARIABLES
========================= */
:root {
  --dark-navy: #00112d;
  --deep-blue: #0a245a;
  --azure: #024e97;
  --bright-blue: #11b6f0;
  --light-grey: #f9f9f9;
  --accent-green: #55ca39;
}

/* =========================
   HEADER
========================= */
.site-header {
  background: linear-gradient(
    90deg,
    var(--dark-navy) 0%,
    var(--deep-blue) 55%,
    var(--azure) 100%
  );
  padding: 18px 0;
  position: relative; /* NOT sticky */
  z-index: 100;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* LOGO */
.logo img {
  height: 44px;
  width: auto;
  display: block;
}

/* NAV */
.main-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.main-nav a,
.main-nav span {
  color: #ffffff;
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
}

/* WhatsApp CTA */
.main-nav .whatsapp {
  padding: 8px 14px;
  border-radius: 6px;
  background: rgba(255,255,255,0.12);
}

.main-nav .whatsapp:hover {
  background: var(--accent-green);
  color: #00112d;
}

/* =========================
   DROPDOWNS
========================= */
.nav-group {
  position: relative;
}

.dropdown {
  position: absolute;
  top: 130%;
  left: 0;
  background: var(--dark-navy);
  border-radius: 8px;
  padding: 10px 0;
  min-width: 220px;
  display: none;
}

.dropdown a {
  display: bloc