:root {
  --nav-bg: #ffffff;
  --nav-border: #e2e8f0;
  --nav-text: #0f172a;
  --nav-gray: #475569;
  --nav-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

.global-header,
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--nav-border);
}

.global-header .header-inner,
.site-header .header-inner,
.site-header .nav-bar,
.site-header .site-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--nav-text);
  font-weight: 700;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(120deg, #1d4ed8, #0ea5e9);
  color: #fff;
  font-weight: 800;
  font-size: 16px;
}

.nav-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
}

  [data-nav] {
    display: flex;
    align-items: center;
    gap: 16px;
    width: 100%;
  }

  [data-nav] a {
    color: var(--nav-gray);
    font-weight: 600;
  font-size: 14px;
  padding: 10px 12px;
  border-radius: 999px;
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease;
}

[data-nav] a:hover,
[data-nav] a[aria-current="page"] {
  color: var(--nav-text);
  background: #f1f5f9;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 1px solid var(--nav-border);
  background: #fff;
  color: var(--nav-text);
  cursor: pointer;
  box-shadow: var(--nav-shadow);
}

/* Hide any legacy headers/navs to avoid duplication */
body > header.header,
body > .site-header {
  display: none !important;
}

@media (max-width: 1024px) {
  .global-header .header-inner,
  .site-header .header-inner,
  .site-header .nav-bar,
  .site-header .site-shell {
    flex-wrap: wrap;
  }

  .nav-toggle {
    display: inline-flex;
  }

  [data-nav] {
    display: none;
    position: fixed;
    top: 72px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 32px);
    max-width: 420px;
    flex-direction: column;
    background: #fff;
    padding: 12px 14px;
    border: 1px solid var(--nav-border);
    border-radius: 14px;
    box-shadow: var(--nav-shadow);
    max-height: 70vh;
    overflow-y: auto;
    z-index: 60;
  }

  [data-nav].open {
    display: flex;
  }

  [data-nav] a {
    width: 100%;
    padding: 10px 8px;
  }
}