/**
 * Dextroverse Slide Menu (Pure CSS)
 * Slides from LEFT, overlay style
 * Toggle: Replace hamburger menu functionality
 */

/* ═══════════════════════════════════════════════════════════════
   SLIDE MENU CONTAINER
   ═══════════════════════════════════════════════════════════════ */

.slide-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(5, 5, 16, 0.7);
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              visibility 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 999;
  pointer-events: none;
}

.slide-menu-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* ═══════════════════════════════════════════════════════════════
   SLIDE MENU PANEL
   ═══════════════════════════════════════════════════════════════ */

.slide-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 320px;
  max-width: 85vw;
  height: 100vh;
  background: linear-gradient(135deg, #050510 0%, #0f0f25 100%);
  border-right: 1px solid rgba(0, 255, 255, 0.2);
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  z-index: 1000;
  transform: translateX(-100%);
  transition: transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.slide-menu.active {
  transform: translateX(0);
}

/* ═══════════════════════════════════════════════════════════════
   SLIDE MENU HEADER
   ═══════════════════════════════════════════════════════════════ */

.slide-menu-header {
  padding: 2rem 1.5rem;
  border-bottom: 1px solid rgba(0, 255, 255, 0.15);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.slide-menu-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--neon-primary, #00ffff);
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
  margin: 0;
  letter-spacing: 1px;
}

.slide-menu-close {
  width: 40px;
  height: 40px;
  background: rgba(0, 255, 255, 0.1);
  border: 1px solid rgba(0, 255, 255, 0.3);
  border-radius: 6px;
  color: var(--neon-primary, #00ffff);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.slide-menu-close:hover {
  background: rgba(0, 255, 255, 0.2);
  transform: rotate(90deg);
}

/* ═══════════════════════════════════════════════════════════════
   SLIDE MENU NAVIGATION
   ═══════════════════════════════════════════════════════════════ */

.slide-menu-content {
  padding: 1.5rem 0;
}

.slide-menu-nav {
  list-style: none;
  margin: 0;
  padding: 0;
}

.slide-menu-nav > li {
  margin: 0;
  padding: 0;
}

.slide-menu-nav > li > a {
  display: block;
  padding: 1rem 1.5rem;
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  font-size: 0.95rem;
  border-left: 3px solid transparent;
  transition: all 0.3s ease;
  position: relative;
}

.slide-menu-nav > li > a:hover,
.slide-menu-nav > li > a.active {
  background: rgba(0, 255, 255, 0.1);
  border-left-color: var(--neon-primary, #00ffff);
  color: var(--neon-primary, #00ffff);
  padding-left: 1.8rem;
  text-shadow: 0 0 8px rgba(0, 255, 255, 0.4);
}

/* Nested menu items */
.slide-menu-nav .sub-menu {
  list-style: none;
  margin: 0;
  padding: 0;
  background: rgba(0, 0, 0, 0.3);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.slide-menu-nav > li.menu-item-has-children > a::after {
  content: '▸';
  position: absolute;
  right: 1.5rem;
  transition: transform 0.3s ease;
}

.slide-menu-nav > li.menu-item-has-children.open .sub-menu {
  max-height: 500px;
}

.slide-menu-nav > li.menu-item-has-children.open > a::after {
  transform: rotate(90deg);
}

.slide-menu-nav .sub-menu li a {
  padding: 0.7rem 1.5rem 0.7rem 3rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

.slide-menu-nav .sub-menu li a:hover {
  background: rgba(0, 255, 255, 0.05);
  color: var(--neon-primary, #00ffff);
  padding-left: 3.3rem;
}

/* ═══════════════════════════════════════════════════════════════
   SLIDE MENU FOOTER
   ═══════════════════════════════════════════════════════════════ */

.slide-menu-footer {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.5rem;
  border-top: 1px solid rgba(0, 255, 255, 0.15);
  background: rgba(0, 0, 0, 0.2);
  text-align: center;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5);
}

/* ═══════════════════════════════════════════════════════════════
   MENU TOGGLE BUTTON (Replaces Hamburger)
   ═══════════════════════════════════════════════════════════════ */

.menu-toggle {
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid rgba(0, 255, 255, 0.3);
  border-radius: 6px;
  color: var(--neon-primary, #00ffff);
  font-size: 1.3rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  position: relative;
  z-index: 999;
}

.menu-toggle:hover {
  background: rgba(0, 255, 255, 0.1);
  box-shadow: 0 0 12px rgba(0, 255, 255, 0.2);
}

.menu-toggle.active {
  background: rgba(0, 255, 255, 0.15);
  box-shadow: inset 0 0 8px rgba(0, 255, 255, 0.2);
}

/* Animated hamburger icon */
.menu-toggle::before {
  content: '';
  position: absolute;
  width: 18px;
  height: 2px;
  background: currentColor;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  box-shadow: 0 7px 0 0 currentColor, 0 14px 0 0 currentColor;
  transition: all 0.3s ease;
}

.menu-toggle.active::before {
  box-shadow: none;
  transform: translateX(-50%) rotate(45deg);
  top: 50%;
  width: 20px;
}

.menu-toggle.active::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 2px;
  background: currentColor;
  top: 50%;
  left: 50%;
  transform: translateX(-50%) rotate(-45deg);
}

/* ═══════════════════════════════════════════════════════════════
   SCROLL BEHAVIOR
   ═══════════════════════════════════════════════════════════════ */

body.menu-open {
  overflow: hidden;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */

@media (max-width: 480px) {
  .slide-menu {
    width: 100%;
    max-width: none;
  }
}

/* Smooth scrollbar in menu */
.slide-menu::-webkit-scrollbar {
  width: 6px;
}

.slide-menu::-webkit-scrollbar-track {
  background: transparent;
}

.slide-menu::-webkit-scrollbar-thumb {
  background: rgba(0, 255, 255, 0.2);
  border-radius: 3px;
}

.slide-menu::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 255, 255, 0.4);
}