/* Phase 09.3 — header global menu (CONT-04).
   Matches dzin.pro design system (Inter, --color-*). Not using dzin-link-informational here
   (that class is underlined for article/body copy). */

.dzin-header-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: var(--space-sm, 0.5rem);
  position: relative;
  z-index: 100;
  font-family: var(--font-family, 'Inter', system-ui, sans-serif);
  font-size: var(--font-size-sm, 0.9375rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
}

/* Base link look in header — no underline, DS colors */
.dzin-header-nav a.dzin-header-nav__link,
.dzin-header-nav .dzin-header-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.65rem;
  border-radius: var(--radius-sm, 8px);
  color: var(--color-text, #1A1A2E) !important;
  text-decoration: none !important;
  font-weight: 600;
  line-height: 1.3;
  transition: color 0.15s ease, background 0.15s ease;
}

.dzin-header-nav a.dzin-header-nav__link:hover,
.dzin-header-nav a.dzin-header-nav__link:focus-visible,
.dzin-header-nav .dzin-header-nav__link:hover,
.dzin-header-nav .dzin-header-nav__link:focus-visible {
  color: var(--color-primary, #1A6EF5) !important;
  background: rgba(26, 110, 245, 0.08);
  text-decoration: none !important;
}

.dzin-header-nav__toggle {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  background: var(--color-bg, #fff);
  border: 1px solid var(--color-border, #E5E7EB);
  border-radius: var(--radius-sm, 8px);
  box-shadow: var(--shadow-card, 0 2px 8px rgba(0, 0, 0, 0.06));
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.dzin-header-nav__toggle:hover {
  border-color: var(--color-primary, #1A6EF5);
}

.dzin-header-nav__toggle-bar {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--color-text, #1A1A2E);
  border-radius: 1px;
}

.dzin-header-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  min-width: min(100vw - 2rem, 320px);
  background: var(--color-bg, #fff);
  border: 1px solid var(--color-border, #E5E7EB);
  border-radius: var(--radius-md, 12px);
  box-shadow: var(--shadow-hover, 0 8px 24px rgba(0, 0, 0, 0.12));
  padding: var(--space-sm, 0.5rem);
  z-index: 120;
}

.dzin-header-nav[data-dzin-open="true"] .dzin-header-nav__list {
  display: flex;
}

.dzin-header-nav__item {
  position: relative;
  list-style: none;
}

.dzin-header-nav__item--has-sub > .dzin-header-nav__link::after {
  content: "";
  display: inline-block;
  width: 0;
  height: 0;
  margin-left: 2px;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  opacity: 0.65;
  vertical-align: middle;
}

/* Submenus: fallback + BEM */
.dzin-header-nav__sub,
.dzin-header-nav .sub-menu {
  list-style: none;
  margin: 0.35rem 0 0;
  padding: 0 0 0 0.75rem;
  border-left: 2px solid var(--color-border, #E5E7EB);
}

.dzin-header-nav__sub-item {
  margin: 0.15rem 0;
  list-style: none;
}

.dzin-header-nav__sub .dzin-header-nav__link,
.dzin-header-nav__sub-item .dzin-header-nav__link,
.dzin-header-nav .sub-menu .dzin-header-nav__link {
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.4rem 0.5rem;
  width: 100%;
  box-sizing: border-box;
}

@media (min-width: 720px) {
  .dzin-header-nav {
    justify-content: center;
    flex-wrap: nowrap;
    padding: 0.15rem 0;
    gap: 0.15rem;
  }

  .dzin-header-nav__toggle {
    display: none !important;
  }

  .dzin-header-nav__list {
    display: flex !important;
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
    position: static;
    min-width: 0;
    background: transparent;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    padding: 0;
    gap: 0.15rem;
  }

  .dzin-header-nav__sub,
  .dzin-header-nav .sub-menu {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    min-width: 280px;
    max-width: min(360px, 90vw);
    padding: var(--space-xs, 0.25rem) 0;
    margin: 0;
    border: 1px solid var(--color-border, #E5E7EB);
    border-left: 1px solid var(--color-border, #E5E7EB);
    border-radius: var(--radius-md, 12px);
    background: var(--color-bg, #fff);
    box-shadow: var(--shadow-hover, 0 10px 28px rgba(0, 0, 0, 0.12));
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
    z-index: 130;
  }

  .dzin-header-nav__item--has-sub:hover .dzin-header-nav__sub,
  .dzin-header-nav__item--has-sub:focus-within .dzin-header-nav__sub,
  .dzin-header-nav .menu-item-has-children:hover > .sub-menu,
  .dzin-header-nav .menu-item-has-children:focus-within > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .dzin-header-nav__sub .dzin-header-nav__link,
  .dzin-header-nav .sub-menu .dzin-header-nav__link {
    border-radius: 0;
    padding: 0.55rem 1rem;
    font-size: var(--font-size-sm, 0.9375rem);
  }

  .dzin-header-nav__sub .dzin-header-nav__link:hover,
  .dzin-header-nav .sub-menu .dzin-header-nav__link:hover {
    background: var(--color-bg-alt, #F8F9FA);
  }
}