/* Copyright (c) 2025-2026 Spwig contributors. Licensed under AGPL-3.0. */

/* Menu Widget Styles */
/* Uses theme CSS variables - no hardcoded colors */
/* Standardized token naming: --color-*, --space-*, --font-*, --radius-*, --shadow-*, --transition-* */

/* ===================================
   CSS Variables & Configuration
   =================================== */

.widget-menu {
  /* Base Configuration */
  --menu-breakpoint: 768px;

  /* Spacing */
  --menu-item-gap: var(--theme-space-1, 0.25rem);
  --menu-link-padding-x: var(--theme-space-4, 1rem);
  --menu-link-padding-y: var(--theme-space-2, 0.5rem);
  --menu-dropdown-padding: var(--theme-space-2, 0.5rem);
  --menu-dropdown-offset: var(--theme-space-2, 0.5rem);

  /* Colors */
  --menu-text-color: var(--theme-color-text, currentColor);
  --menu-text-hover-color: var(
    --theme-menu-text-hover-color,
    var(--theme-color-text-inverse, #fff)
  );
  --menu-background: transparent;
  --menu-background-hover: var(--theme-color-primary, #3b82f6);
  --menu-dropdown-background: var(--theme-color-surface, white);
  --menu-dropdown-shadow: var(--theme-shadow-md, 0 4px 6px -1px rgba(0, 0, 0, 0.1));
  --menu-border-color: var(--theme-color-border, #e5e7eb);
  --menu-active-indicator-color: var(--theme-color-primary, #3b82f6);

  /* Typography */
  --menu-font-size: var(--theme-font-size-base, 1rem);
  --menu-font-weight: var(--theme-font-weight-medium, 500);
  --menu-font-weight-active: var(--theme-font-weight-semibold, 600);

  /* Shapes */
  --menu-border-radius: var(--theme-radius-md, 0.375rem);
  --menu-dropdown-border-radius: var(--theme-radius-lg, 0.5rem);

  /* Animations */
  --menu-animation-duration: var(--theme-transition-duration-fast, 150ms);
  --menu-animation-timing: cubic-bezier(0.4, 0, 0.2, 1);
  --menu-slide-duration: var(--theme-transition-duration-normal, 300ms);

  /* Apply base styles */
  font-family: var(--theme-font-sans, inherit);
  font-size: var(--menu-font-size);
}

/* ===================================
   Base Menu List Styles
   =================================== */

.widget-menu .menu-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--menu-item-gap);
  font-family: var(--menu-font-family, inherit);
}

.widget-menu .menu-item {
  position: relative;
}

/* ===================================
   Menu Link Styles
   =================================== */

.widget-menu .menu-link {
  display: flex;
  align-items: center;
  gap: var(--theme-space-2, 0.5rem);
  padding: var(--menu-link-padding-y) var(--menu-link-padding-x);
  color: var(--item-text-color, var(--menu-text-color));
  background: var(--item-bg, var(--menu-background));
  font-weight: var(--item-font-weight, var(--menu-font-weight));
  text-decoration: none;
  border-radius: var(--menu-border-radius);
  cursor: pointer;
  transition:
    color var(--menu-animation-duration) var(--menu-animation-timing),
    background-color var(--menu-animation-duration) var(--menu-animation-timing),
    transform var(--menu-animation-duration) var(--menu-animation-timing);
}

.widget-menu .menu-link:hover {
  color: var(--item-hover-color, var(--menu-text-hover-color));
  background: var(--menu-background-hover);
}

/* Active/current page state */
.widget-menu .menu-link[aria-current='page'] {
  color: var(--menu-active-indicator-color);
  font-weight: var(--menu-font-weight-active);
  position: relative;
}

.widget-menu .menu-list.menu-horizontal .menu-link[aria-current='page']::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: var(--menu-link-padding-x);
  right: var(--menu-link-padding-x);
  height: 2px;
  background: var(--menu-active-indicator-color);
  border-radius: 1px;
}

/* ===================================
   Badge Styles
   =================================== */

.widget-menu .menu-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.5rem;
  padding: 0.125rem 0.5rem;
  font-size: var(--theme-font-size-xs, 0.75rem);
  font-weight: var(--theme-font-weight-medium, 500);
  border-radius: 999px;
  background: var(--theme-color-accent, #f472b6);
  color: var(--theme-color-text-inverse, #fff);
}

/* ===================================
   Dropdown Chevron
   =================================== */

.widget-menu .menu-chevron {
  margin-left: auto;
  font-size: 0.75em;
  opacity: 0.7;
  transition: transform var(--menu-animation-duration) var(--menu-animation-timing);
}

.widget-menu .menu-item:hover > .menu-link .menu-chevron,
.widget-menu .menu-item:focus-within > .menu-link .menu-chevron,
.widget-menu .menu-item.expanded > .menu-link .menu-chevron {
  transform: rotate(180deg);
}

/* ===================================
   Dropdown Menu Styles
   =================================== */

.widget-menu .has-dropdown {
  position: relative;
}

.widget-menu .dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  margin-top: var(--menu-dropdown-offset);
  padding: var(--menu-dropdown-padding);
  background: var(--menu-dropdown-background);
  border: 1px solid var(--menu-border-color);
  border-radius: var(--menu-dropdown-border-radius);
  box-shadow: var(--menu-dropdown-shadow);
  list-style: none;
  z-index: var(--theme-z-dropdown, 1000);

  /* Animation states */
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition:
    opacity var(--menu-animation-duration) var(--menu-animation-timing),
    transform var(--menu-animation-duration) var(--menu-animation-timing),
    visibility 0s linear var(--menu-animation-duration);
}

.widget-menu .menu-item:hover > .dropdown-menu,
.widget-menu .menu-item:focus-within > .dropdown-menu,
.widget-menu .menu-item.expanded > .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition:
    opacity var(--menu-animation-duration) var(--menu-animation-timing),
    transform var(--menu-animation-duration) var(--menu-animation-timing),
    visibility 0s linear 0s;
}

.widget-menu .dropdown-item {
  margin: 0;
}

.widget-menu .dropdown-item a {
  display: flex;
  align-items: center;
  gap: var(--theme-space-2, 0.5rem);
  padding: var(--theme-space-2, 0.5rem) var(--theme-space-4, 1rem);
  color: var(--menu-text-color);
  text-decoration: none;
  border-radius: var(--menu-border-radius);
  transition: background var(--menu-animation-duration) var(--menu-animation-timing);
}

.widget-menu .dropdown-item a:hover {
  background: var(--theme-color-background-secondary, var(--theme-color-surface));
}

.widget-menu .dropdown-item a[aria-current='page'] {
  color: var(--menu-active-indicator-color);
  font-weight: var(--menu-font-weight-active);
  background: var(--theme-color-primary-light, var(--theme-color-surface));
}

/* ===================================
   Horizontal Layout (Desktop Default)
   =================================== */

.widget-menu .menu-list.menu-horizontal {
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
}

/* ===================================
   Vertical Layout
   =================================== */

.widget-menu .menu-list.menu-vertical {
  flex-direction: column;
  gap: var(--theme-space-1, 0.25rem);
}

.widget-menu .menu-list.menu-vertical .menu-link {
  border-left: 3px solid transparent;
  border-radius: 0 var(--menu-border-radius) var(--menu-border-radius) 0;
}

.widget-menu .menu-list.menu-vertical .menu-link:hover,
.widget-menu .menu-list.menu-vertical .menu-link[aria-current='page'] {
  border-left-color: var(--menu-active-indicator-color);
  background: var(--theme-color-background-secondary, var(--theme-color-surface));
  color: var(--menu-text-color);
}

.widget-menu .menu-list.menu-vertical .menu-link[aria-current='page']::after {
  display: none;
}

/* Vertical dropdown - inline nested */
.widget-menu .menu-list.menu-vertical .dropdown-menu {
  position: static;
  opacity: 1;
  visibility: visible;
  transform: none;
  box-shadow: none;
  border: none;
  background: transparent;
  padding: 0;
  padding-left: var(--theme-space-4, 1rem);
  margin-left: var(--theme-space-4, 1rem);
  border-left: 2px solid var(--menu-border-color);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--menu-slide-duration) var(--menu-animation-timing);
}

.widget-menu .menu-list.menu-vertical .menu-item.expanded > .dropdown-menu {
  max-height: 500px;
}

/* ===================================
   Responsive Design (Mobile-First)
   =================================== */

/* Mobile: Stack vertically */
@media (max-width: 767.98px) {
  .widget-menu .menu-list.menu-horizontal {
    flex-direction: column;
    align-items: stretch;
  }

  /* Touch-friendly sizing */
  .widget-menu .menu-link {
    min-height: 44px; /* Apple HIG touch target */
    padding: var(--theme-space-3, 0.75rem) var(--theme-space-4, 1rem);
  }

  /* Dropdowns inline on mobile */
  .widget-menu .menu-list.menu-horizontal .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: transparent;
    padding: 0;
    padding-left: var(--theme-space-4, 1rem);
    margin: 0;
    margin-left: var(--theme-space-4, 1rem);
    border-left: 2px solid var(--menu-border-color);
  }

  .widget-menu .menu-list.menu-horizontal .dropdown-item a {
    min-height: 44px;
  }
}

/* Ultra-small viewports: Prevent wrapping and enable horizontal scroll */
@media (max-width: 375px) {
  .widget-menu .menu-list.menu-horizontal {
    gap: var(--theme-space-1, 0.25rem); /* Reduce gap from default */
  }

  .widget-menu .menu-link {
    padding: var(--theme-space-2, 0.5rem) var(--theme-space-3, 0.75rem); /* Tighter padding */
    font-size: var(--theme-font-size-sm, 0.875rem); /* Smaller font */
  }

  /* Prevent badge/chevron layout shift */
  .widget-menu .menu-badge {
    margin-left: var(--theme-space-2, 0.5rem); /* Reduce from auto */
    padding: var(--theme-space-1, 0.25rem) var(--theme-space-2, 0.5rem);
  }

  .widget-menu .menu-chevron {
    margin-left: var(--theme-space-1, 0.25rem);
  }

  /* Overflow containment for horizontal mode */
  .widget-menu .menu-list.menu-horizontal {
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
  }

  .widget-menu .menu-list.menu-horizontal > li {
    scroll-snap-align: start;
    flex-shrink: 0; /* Prevent shrinking */
  }

  /* Text truncation for long labels */
  .widget-menu .menu-link-text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 150px; /* Limit width on ultra-small screens */
  }

  /* Dropdown inline expansion width guard */
  .widget-menu .menu-list.menu-horizontal .dropdown-menu {
    max-width: calc(100vw - 2rem); /* Prevent viewport overflow */
    overflow-wrap: break-word;
  }
}

/* Scroll behavior indicators */
.widget-menu .menu-list.menu-horizontal {
  scrollbar-width: thin;
  scrollbar-color: var(--menu-scrollbar-thumb-color, rgba(0, 0, 0, 0.2)) transparent;
}

.widget-menu .menu-list.menu-horizontal::-webkit-scrollbar {
  height: 4px;
}

.widget-menu .menu-list.menu-horizontal::-webkit-scrollbar-thumb {
  background: var(--menu-scrollbar-thumb-color, rgba(0, 0, 0, 0.2));
  border-radius: 2px;
}

/* Desktop: Horizontal with dropdowns */
@media (min-width: 768px) {
  .widget-menu .menu-list.menu-horizontal .dropdown-menu {
    position: absolute;
  }

  /* Subtle hover effect */
  .widget-menu .menu-link:hover {
    transform: translateY(-1px);
  }
}

/* ===================================
   Accessibility
   =================================== */

/* Focus-visible states for keyboard users */
.widget-menu .menu-link:focus-visible,
.widget-menu .dropdown-item a:focus-visible {
  outline: 2px solid var(--menu-active-indicator-color);
  outline-offset: 2px;
  border-radius: var(--menu-border-radius);
}

/* Remove outline for mouse users */
.widget-menu .menu-link:focus:not(:focus-visible),
.widget-menu .dropdown-item a:focus:not(:focus-visible) {
  outline: none;
}

/* Skip to content support */
.widget-menu:focus-within .menu-link:focus {
  position: relative;
  z-index: 1;
}

/* ===================================
   Mobile Menu Modes
   =================================== */

/* Mode: Bottom Navigation Bar */
.widget-menu.mobile-mode-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--menu-dropdown-background);
  border-top: 1px solid var(--menu-border-color);
  box-shadow: var(--theme-shadow-lg, 0 -2px 10px rgba(0, 0, 0, 0.1));
  z-index: var(--theme-z-sticky, 1020);
  padding: var(--theme-space-2, 0.5rem) var(--theme-space-4, 1rem);
  padding-bottom: calc(var(--theme-space-2, 0.5rem) + env(safe-area-inset-bottom));
}

.widget-menu.mobile-mode-bottom-nav .menu-list {
  flex-direction: row;
  justify-content: space-around;
}

.widget-menu.mobile-mode-bottom-nav .menu-link {
  flex-direction: column;
  align-items: center;
  gap: var(--theme-space-1, 0.25rem);
  padding: var(--theme-space-2, 0.5rem);
  font-size: var(--theme-font-size-xs, 0.75rem);
  background: transparent;
}

.widget-menu.mobile-mode-bottom-nav .menu-link:hover {
  background: transparent;
  color: var(--menu-active-indicator-color);
}

.widget-menu.mobile-mode-bottom-nav .menu-link i:first-child {
  font-size: 1.25rem;
}

.widget-menu.mobile-mode-bottom-nav .menu-chevron,
.widget-menu.mobile-mode-bottom-nav .dropdown-menu {
  display: none;
}

/* Mode: Slide Menu (off-canvas) */
.widget-menu.mobile-mode-slide {
  position: fixed;
  top: 0;
  left: 0;
  width: 280px;
  max-width: 80vw;
  height: 100vh;
  height: 100dvh;
  background: var(--menu-dropdown-background);
  box-shadow: var(--theme-shadow-lg, 2px 0 20px rgba(0, 0, 0, 0.15));
  transform: translateX(-100%);
  transition: transform var(--menu-slide-duration) var(--menu-animation-timing);
  z-index: var(--theme-z-modal, 1050);
  overflow-y: auto;
  padding: var(--theme-space-4, 1rem);
}

.widget-menu.mobile-mode-slide.menu-open {
  transform: translateX(0);
}

.widget-menu.mobile-mode-slide .menu-list {
  flex-direction: column;
}

/* Overlay for slide menu */
.menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: all var(--menu-slide-duration) var(--menu-animation-timing);
  z-index: calc(var(--theme-z-modal, 1050) - 1);
}

.menu-overlay.visible {
  opacity: 1;
  visibility: visible;
}

/* Mode: Fullscreen */
.widget-menu.mobile-mode-fullscreen {
  position: fixed;
  inset: 0;
  background: var(--menu-dropdown-background);
  z-index: var(--theme-z-modal, 1050);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--menu-slide-duration) var(--menu-animation-timing),
    visibility 0s linear var(--menu-slide-duration);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding: var(--theme-space-6, 1.5rem);
}

.widget-menu.mobile-mode-fullscreen.menu-open {
  opacity: 1;
  visibility: visible;
  transition:
    opacity var(--menu-slide-duration) var(--menu-animation-timing),
    visibility 0s linear 0s;
}

.widget-menu.mobile-mode-fullscreen .menu-list {
  flex: 1;
  flex-direction: column;
  justify-content: center;
}

.widget-menu.mobile-mode-fullscreen .menu-link {
  font-size: var(--theme-font-size-xl, 1.25rem);
  padding: var(--theme-space-4, 1rem);
  justify-content: center;
  text-align: center;
}

.widget-menu.mobile-mode-fullscreen .menu-close {
  position: absolute;
  top: var(--theme-space-4, 1rem);
  right: var(--theme-space-4, 1rem);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--menu-border-color);
  border-radius: var(--menu-border-radius);
  font-size: 1.25rem;
  cursor: pointer;
  transition: all var(--menu-animation-duration) var(--menu-animation-timing);
}

.widget-menu.mobile-mode-fullscreen .menu-close:hover {
  background: var(--theme-color-background-secondary, var(--theme-color-surface));
}

/* ===================================
   Staggered Animation (Optional)
   =================================== */

@media (prefers-reduced-motion: no-preference) {
  .widget-menu.animate-stagger .menu-item {
    opacity: 0;
    transform: translateY(10px);
    animation: menuItemFadeIn var(--menu-animation-duration) var(--menu-animation-timing) forwards;
  }

  .widget-menu.animate-stagger .menu-item:nth-child(1) {
    animation-delay: 0ms;
  }
  .widget-menu.animate-stagger .menu-item:nth-child(2) {
    animation-delay: 50ms;
  }
  .widget-menu.animate-stagger .menu-item:nth-child(3) {
    animation-delay: 100ms;
  }
  .widget-menu.animate-stagger .menu-item:nth-child(4) {
    animation-delay: 150ms;
  }
  .widget-menu.animate-stagger .menu-item:nth-child(5) {
    animation-delay: 200ms;
  }
  .widget-menu.animate-stagger .menu-item:nth-child(6) {
    animation-delay: 250ms;
  }
  .widget-menu.animate-stagger .menu-item:nth-child(7) {
    animation-delay: 300ms;
  }
  .widget-menu.animate-stagger .menu-item:nth-child(8) {
    animation-delay: 350ms;
  }
}

@keyframes menuItemFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===================================
   Reduced Motion Support
   =================================== */

@media (prefers-reduced-motion: reduce) {
  .widget-menu,
  .widget-menu .dropdown-menu,
  .widget-menu .menu-link,
  .widget-menu .menu-chevron,
  .widget-menu.mobile-mode-slide,
  .widget-menu.mobile-mode-fullscreen,
  .menu-overlay {
    transition: none !important;
    animation: none !important;
  }

  .widget-menu .dropdown-menu {
    transform: none;
  }
}

/* ===================================
   Placeholder State
   =================================== */

.widget-menu .menu-placeholder {
  padding: var(--theme-space-4, 1rem);
  color: var(--theme-color-text-muted, #9ca3af);
  font-style: italic;
}