/*
 * Component: Navbar
 * Depends on: tokens.css
 */

/* ── Site Header Wrapper ─────────────────────────────────────────── */
.site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background: var(--navbar-bg);
    box-shadow: var(--sha);
    border-bottom: 1px solid #dcdcdc6b;
}

/* ── Desktop Nav Row ─────────────────────────────────────────────── */
.nav {
  display: flex;
  align-items: center;
  height: var(--navbar-height);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  gap: var(--space-4);
}

/* ── Brand ───────────────────────────────────────────────────────── */
.nav_left { flex-shrink: 0; }

.nav_brand {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  letter-spacing: var(--letter-spacing-tight);
  text-transform: capitalize;
}

/* ── Primary Menu ────────────────────────────────────────────────── */
.nav_right { flex: 1; }

.nav_right ul {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--space-1);
}

.nav_right ul li a {
  display: block;
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--navbar-text);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav_right ul li a:hover,
.nav_right ul li.current-menu-item > a {
  color: var(--color-primary);
  background: var(--color-primary-muted);
}

/* Dropdown indicator */
.nav_right .adddrop > a::after {
  content: " ▾";
  font-size: 10px;
  opacity: 0.5;
}

/* Sub-menu */
.nav_right .sub-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  min-width: 200px;
  padding: var(--space-2) 0;
  z-index: var(--z-drawer);
}

.nav_right .menu-item-has-children {
  position: relative;
}

.nav_right .menu-item-has-children:hover > .sub-menu { display: block; }

.nav_right .sub-menu li a {
  padding: var(--space-2) var(--space-4);
  border-radius: 0;
  font-size: var(--font-size-sm);
}

/* ── Nav Actions (search) ────────────────────────────────────────── */
.nav_actions { flex-shrink: 0; display: flex; align-items: center; gap: var(--space-3); }

.nav_search_wrap { position: relative; }

.search_icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: transparent;
  transition: background var(--transition-fast);
}

.search_icon:hover { background: var(--color-bg-soft); }

/* Search Box */
.nav_search_box {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 300px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-3) var(--space-4);
  align-items: center;
  gap: var(--space-2);
}

.nav_search_box.search_open { display: flex; }

.search_box_icon { flex-shrink: 0; opacity: 0.5; }

.nav_search_box .search-form { flex: 1; }
.nav_search_box input[type="search"],
.nav_search_box #s {
  width: 100%;
  border: none;
  outline: none;
  font-size: var(--font-size-sm);
  background: transparent;
  color: var(--color-text);
}

.search_suggestions {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  max-height: 280px;
  overflow-y: auto;
  z-index: var(--z-drawer);
  margin-top: 4px;
}

.search_suggestion_item {
  display: block;
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border-light);
  transition: background var(--transition-fast);
}

.search_suggestion_item:last-child { border-bottom: none; }
.search_suggestion_item:hover { background: var(--color-bg-soft); color: var(--color-primary); }

/* ── Mobile hamburger row ────────────────────────────────────────── */
.mobile_menu {
  display: none;
  align-items: center;
  justify-content: space-between;
  height: var(--navbar-height);
  padding: 0 var(--space-4);
}

.mobile_search_btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
}

#open_mobile_menu { cursor: pointer; }

/* ── Sidebar Overlay ─────────────────────────────────────────────── */
.sidebar_overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: var(--z-overlay);
  backdrop-filter: blur(2px);
}

.sidebar_overlay.overlay_visible { display: block; }

/* ── Sidebar Nav Drawer ───────────────────────────────────────────── */
.sidebar_nav {
  position: fixed;
  top: 0;
  left: -100%;
  width: min(300px, 85vw);
  height: 100dvh;
  background: var(--color-bg);
  z-index: var(--z-drawer);
  overflow-y: auto;
  transition: left var(--transition-spring);
  display: flex;
  flex-direction: column;
}

.sidebar_nav.sidebar_open { left: 0; }

.sidebar_nav_header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
}

.sn-logo {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-md);
  flex-shrink: 0;
}

.sn-info { flex: 1; min-width: 0; }
.sn-name { display: block; font-weight: var(--font-weight-semibold); font-size: var(--font-size-sm); }
.sn-tag  { display: block; font-size: var(--font-size-xs); color: var(--color-text-muted); }

.close_sidebar_nav {
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-full);
  cursor: pointer;
  color: var(--color-text-muted);
  transition: background var(--transition-fast);
  flex-shrink: 0;
}

.close_sidebar_nav:hover { background: var(--color-bg-soft); }

/* Sidebar menu list */
.sidebar_menu {
  list-style: none;
  margin: 0;
  padding: var(--space-3) 0;
  flex: 1;
}

.sidebar_menu li { position: relative; }

.sidebar_menu li a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.sidebar_menu li a:hover,
.sidebar_menu li.current-menu-item > a { color: var(--color-primary); background: var(--color-primary-muted); }

.sidebar_menu_icon { display: flex; align-items: center; opacity: 0.4; }

.submenu_toggle {
  position: absolute;
  right: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.submenu_active .submenu_toggle { transform: translateY(-50%) rotate(180deg); }
.submenu_toggle:hover { background: var(--color-bg-soft); }

.sidebar_menu .sub-menu {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  background: var(--color-bg-alt);
}

.sidebar_menu .sub-menu li a {
  padding-left: calc(var(--space-4) + 24px);
  font-size: var(--font-size-xs);
}

/* Sidebar social links */
.sidebar_social { padding: var(--space-4); border-top: 1px solid var(--color-border-light); margin-top: auto; }
.sidebar_social_label { font-size: var(--font-size-xs); text-transform: uppercase; letter-spacing: var(--letter-spacing-wider); color: var(--color-text-muted); margin: 0 0 var(--space-3); }
.sidebar_social_icons { display: flex; gap: var(--space-3); }

.sidebar_social_link {
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-full);
  background: var(--color-bg-soft);
  color: var(--color-text-secondary);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.sidebar_social_link svg { width: 16px; height: 16px; fill: currentColor; }
.sidebar_social_link:hover { background: var(--color-primary); color: #fff; }

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .nav, .nav_right { display: none; }
  .mobile_menu { display: flex; }
  .mobile_search_btn { display: flex; }
}

@media (min-width: 901px) {
  .mobile_menu, .mobile_search_btn { display: none !important; }
}