/* ============================================
   Navigation Utility Classes
   ============================================ */

/* Override missing.css `.navbar` — fix overflow scrollbar and reinforce sticky top */
.navbar {
  overflow-x: clip;
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: transform 0.3s ease;
}

/* Neutralize missing.css `.navbar *` flex-shrink and auto-margin centering */
.navbar * {
  flex-shrink: unset;
}

.navbar:not(.expanded) > :first-child,
.navbar:not(.expanded) nav > :first-child {
  margin-inline-start: 0;
}

/* Hidden state for scroll-direction hide/show */
.navbar.navbar-hidden {
  transform: translateY(-100%);
}

/* Nav structure: brand + hamburger always visible, menu collapsible on mobile */
.navigation {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  position: relative;
  width: 100%;
  max-inline-size: clamp(var(--eff-line-length, 65ch), 85vw, 1400px);
  margin-inline: auto;
  padding-inline: var(--spacing-lg, 2rem);
  box-sizing: border-box;
  justify-content: space-between;
}

.nav-bar {
  display: flex !important;
  flex-direction: row !important;
  align-items: center;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-brand a strong {
  font-size: 1.2em;
}

/* --- Logo icon in nav --- */
.nav-brand a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
}

.nav-logo {
  height: 32px;
  width: auto;
  display: block;
  image-rendering: pixelated;
}

/* --- _hyperscript wordmark (Chicago font, blue '_' and 's') --- */
.wordmark {
  font-family: 'ChicagoFLF', 'Chicago', 'Geneva', system-ui, sans-serif;
  font-weight: normal;
  text-decoration: none;
  color: inherit;
  letter-spacing: 0;
  white-space: nowrap;
  word-spacing: 0;
}

.wordmark .ws {
  color: #3465a4;
  margin: 0;
  padding: 0;
  display: inline;
}

/* Dark mode override for the blue 's' */
.-dark-mode .wordmark .ws,
[data-theme="dark"] .wordmark .ws {
  color: #6cacf0;
}

/* Hamburger button: hidden on desktop */
.nav-hamburger {
  display: none;
  margin-inline-start: auto;
}

.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid var(--color-border, #e5e5e5);
  border-radius: var(--radius-sm, 0.25rem);
  cursor: pointer;
  font-size: 1.5rem;
  min-width: 44px;
  min-height: 44px;
  padding: var(--space-2);
  color: var(--color-fg, inherit);
  line-height: 1;
}

.nav-toggle:hover {
  background: var(--color-surface, #f5f5f5);
}

/* Nav menu: flex child that fills remaining space on desktop */
.nav-menu {
  display: flex;
  flex: 1;
  justify-content: flex-end;
}

/* Override missing.css `.navbar nav ul[role=list]` gap and flex-shrink */
.navigation .nav-menu > ul {
  display: flex !important;
  flex-direction: row !important;
  align-items: center;
  gap: var(--space-2) !important;
  margin: 0;
  padding: 0;
  list-style: none;
}

.navigation .nav-menu > ul > * {
  flex-shrink: 1 !important;
}

/* Touch target minimums */
.navigation a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

#dark-mode-btn {
  background: none;
  border: none;
  box-shadow: none;
  cursor: pointer;
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2);
  color: var(--color-muted);
  transition: color 0.2s ease;
}

#dark-mode-btn:hover {
  color: var(--color-accent);
}

/* Mobile: ≤768px */
@media (max-width: 768px) {
  .navigation {
    width: 100%;
    margin: 0;
    flex-wrap: nowrap;
  }

  .nav-bar {
    width: 100%;
    justify-content: space-between;
  }

  .nav-hamburger {
    display: block;
    margin-inline-start: 0;
  }

  .nav-menu {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg, white);
    border-block-end: 1px solid var(--color-border, #e5e5e5);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    z-index: 1001;
    padding: var(--space-3);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.25s ease, opacity 0.25s ease, visibility 0.25s;
  }

  .navigation.nav-open .nav-menu {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .navigation.nav-open .nav-menu > ul {
    flex-direction: column !important;
    align-items: stretch !important;
  }

  .navigation.nav-open .nav-menu > ul > li > a {
    display: flex;
    width: 100%;
    padding: var(--space-3);
    min-height: 44px;
    box-sizing: border-box;
  }

  .navigation.nav-open .nav-menu select {
    margin-left: 0;
    width: 100%;
    min-height: 44px;
    padding: var(--space-2) var(--space-3);
    box-sizing: border-box;
  }

  .navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    overflow: visible !important;
  }
}

/* Mobile drawer backdrop overlay */
.nav-drawer-backdrop {
  display: none;
}

@media (max-width: 768px) {
  .nav-drawer-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.25s ease;
  }

  .nav-drawer-backdrop.visible {
    opacity: 1;
  }
}

/* Desktop: >768px — ensure hamburger stays hidden */
@media (min-width: 769px) {
  .nav-hamburger {
    display: none;
  }
}

/* Narrow desktop: 769px-1024px — Fluid compression to prevent nav overflow */
@media (min-width: 769px) and (max-width: 1024px) {
  .navigation {
    flex-wrap: wrap;
  }

  .navigation .nav-menu > ul {
    gap: clamp(2px, 0.8vw, 8px) !important;
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .navigation a {
    font-size: clamp(0.75rem, 1.4vw, 0.95rem);
    padding: var(--space-1) var(--space-2);
    min-height: 36px;
  }

  .nav-menu select {
    font-size: clamp(0.75rem, 1.4vw, 0.95rem);
    padding: var(--space-1) var(--space-2);
    min-height: 36px;
  }
}

/* ============================================
   Small Screen Table Enhancement
   ============================================ */

@media (max-width: 480px) {
  .bundle-table table {
    font-size: var(--text-sm, 0.875rem);
  }

  .bundle-table th,
  .bundle-table td {
    padding: var(--space-2, 0.5rem);
  }
}