.header {
  /* palette */
  --barik-900: #0b2142;
  --barik-700: #12376e;
  --barik-600: #164583;
  --barik-500: #1b5fb3;
  --barik-400: #2c82be;
  --barik-300: #6aa6d9;
  --barik-200: #a8ccef;
  --barik-100: #f6f9ff;
  --text-dark: #1e293b;
  --text-muted: #64748b;
  --radius: 12px;
  --shadow: 0 10px 30px rgba(2, 6, 23, 0.08);
  --container: 1200px; /* match landing page container width */
}

/* ===== Topbar / Navbar ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid rgba(16, 24, 40, 0.08);
}

.header .navbar {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: start;
}
.header .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--barik-600);
  white-space: nowrap;
}
.header .brand svg {
  width: 22px;
  height: 22px;
  fill: var(--barik-600);
}

/* mobile toggle */
.header .menu-toggle {
  display: none;
  border: 1px solid rgba(2, 6, 23, 0.1);
  background: #fff;
  border-radius: 10px;
  padding: 8px 10px;
  box-shadow: var(--shadow);
}
.header .menu-toggle:focus {
  outline: 2px solid var(--barik-300);
}
.header .menu-toggle svg {
  width: 22px;
  height: 22px;
}

.header .nav-wrap {
  display: flex;
  align-items: center;
}
.header .nav {
  list-style: none;
  display: flex;
  margin: 0;
  padding: 0;
}
.header .nav > li {
  position: relative;
}
.header .nav a {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 600;
  font-size: 15px;
}

.header .nav > li > a:focus, .nav > li > a:hover {
  text-decoration: none;
  background-color: #edf3ff;
  border-radius: 8px;
}

/*
.header .nav a:hover {
  color: #fff;
}
*/

/* main menu icons */
.header .nav a .mi {
  margin-right: 10px;
  font-size: 16px;
  color: var(--barik-600);
  width: 18px;
  text-align: center;
}
.header .nav a .caret {
  margin-left: 8px;
  font-size: 12px;
  color: var(--text-muted);
}
.header .nav a:hover .mi {
  color: var(--barik-500);
}

/* remove pseudo-caret since we use icon */
.header .nav .has-mega > a::after {
  content: none;
}

/* caret for items with mega */
.header .nav .has-mega > a::after {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-left: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-1px);
  transition: transform .2s ease;
  -webkit-transition: transform .2s ease;
  -moz-transition: transform .2s ease;
  -ms-transition: transform .2s ease;
  -o-transition: transform .2s ease;
}

/* ===== Mega Menu (desktop) ===== */
.header .mega-menu {
  position: absolute;
/*
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
*/
  max-width: 90vw; /* safe bound */
  background: #fff;
  border-radius: 14px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(2, 6, 23, 0.06);
  padding: 24px;
  display: none;
  pointer-events: auto;
}

.header .nav > li.has-mega {
  position: unset;
}

/* hover open on desktop */
@media (hover: hover) and (pointer: fine) {
  .header .nav > li:hover > .mega-menu {
    display: block;
    animation: fadeIn 0.22s ease-out both;
  }
}

@keyframes fadeIn {
  .from {
    opacity: 0;
    transform: translateX(-50%) translateY(8px);
  }
.header to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* grid */
.header .mega-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(220px, 1fr));
  gap: 16px 24px;
}
.header .mega-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.header .mega-item:hover {
  background: linear-gradient(
    0deg,
    rgba(27, 95, 179, 0.06),
    rgba(27, 95, 179, 0.06)
  );
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(27, 95, 179, 0.08);
}
.header .mega-icon {
  width: 22px;
  height: 22px;
  display: inline-grid;
  place-items: center;
  border-radius: 8px;
  background: rgba(27, 95, 179, 0.12);
  color: var(--barik-600);
  font-size: 14px;
  flex-shrink: 0;
}
.header .mega-title {
  font-weight: 700;
  font-size: 14px;
  color: var(--text-dark);
}
.mega-desc {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* section titles inside mega */
.mega-section {
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--barik-600);
  opacity: 0.9;
  margin: 2px 0 8px;
}

/* footer row inside mega */
.header .mega-footer {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px dashed rgba(2, 6, 23, 0.08);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.header .badge-link {
  padding: 5px 10px;
  border: 1px solid rgba(2, 6, 23, 0.08);
  border-radius: 999px;
  font-size: 12px;
  text-decoration: none;
  color: var(--barik-600);
  background: #fff;
  transition: all 0.2s ease;
}
.header .badge-link:hover {
  background: var(--barik-600);
  color: #fff;
  border-color: transparent;
}

/* ===== Responsive ===== */
@media (max-width: 1200px) {
  .header .nav {
    gap: 24px;
  }
}
@media (max-width: 1024px) {
  .header .mega-grid {
    grid-template-columns: repeat(3, minmax(220px, 1fr));
  }
}
@media (max-width: 860px) {
  .header .nav {
    gap: 18px;
  }
  .header .mega-grid {
    grid-template-columns: repeat(2, minmax(220px, 1fr));
  }
}

/* Mobile / Tablet: collapse nav and use click-to-open for mega */
@media (max-width: 768px) {
  .header .nav > li.has-mega {
    position: relative;
  }
  .header .menu-toggle {
    display: block;
  }
  .header .nav-wrap {
    position: relative;
  }
  .header .nav {
    position: fixed;
    inset: 64px 10px auto 10px; /* below header */
    background: #fff;
    border: 1px solid rgba(2, 6, 23, 0.08);
    border-radius: 14px;
    box-shadow: var(--shadow);
    padding: 14px;
    display: none;
    flex-direction: column;
    gap: 6px;
    z-index: 110;
    max-height: calc(100vh - 84px);
    overflow: auto;
  }
  .header .nav.is-open {
    display: flex;
  }
  .header .nav > li {
    width: 100%;
  }
  .header .nav > li > a {
    display: flex;
    justify-content: start;
    align-items: center;
    padding: 10px 12px;
    border-radius: 10px;
  }
  .header .nav > li > a:hover {
    background: rgba(27, 95, 179, 0.06);
  }

  /* Mega becomes an accordion panel under the trigger item */
  .header .mega-menu {
    position: static;
    transform: none;
    top: auto;
    width: 100%;
    max-width: 100%;
    margin-top: 6px;
    display: none;
    border-radius: 12px;
  }
  .header .mega-menu.open {
    display: block;
  }
  .header .mega-grid {
    grid-template-columns: 1fr;
  }
  .header .mega-footer {
    gap: 8px;
  }
}

.header .mega-footer .badge-link {
  font-weight: normal;
  font-size: 13px;
}

/* Small phones */
@media (max-width: 420px) {
  .header .navbar {
    padding: 10px 12px;
  }
  .header .brand span {
    font-size: 14px;
  }
}