/* ============================================
   NAVIGATION MENU STYLES
   Modern side drawer navigation with pill-shaped button
   ============================================ */

/* Menu Button - Fixed Position Top-Left */
.nav-menu-button {
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 2600;
  background: linear-gradient(135deg, var(--color-quaternary) 0%, var(--color-accent-10) 100%);
  color: var(--color-tertiary);
  border: none;
  border-radius: 50px;
  padding: 12px 24px;
  font-family: var(--font-primary);
  font-weight: 500;
  font-size: var(--font-size-base);
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  transition: all 0.8s ease-out;
}

.nav-menu-button:hover {
  background: var(--color-secondary);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
  transform: translateY(-2px);
}

.nav-menu-button:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.nav-menu-button .icon {
  font-size: var(--font-size-medium);
  line-height: 1;
}

/* Side Drawer Overlay */
.nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 2500;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Side Drawer Container */
.nav-drawer {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 460px;
  background: linear-gradient(180deg, #2a2a5e 0%, #1a1a3e 100%);
  z-index: 2550;
  padding: 80px 20px 40px 20px;
  overflow-y: auto;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  box-shadow: 4px 0 20px rgba(0, 0, 0, 0.5);
  border-radius: 0 50px 50px 0;
}

.nav-drawer.active {
  transform: translateX(0);
}

/* Menu Groups */
.nav-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.nav-group-title {
  color: #9898c8;
  font-family: var(--font-heading);
  font-weight: 400;
  font-size: var(--font-size-tiny);
  text-transform: uppercase;
  padding: 40px 0 0;
  
}

/* Group Content - Side by side layout */
.nav-group-content {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

/* Menu Items List */
.nav-items {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-shrink: 0;
  width: 200px;
}

/* Individual Menu Item */
.nav-item {
  position: relative;
}

.nav-item-button {
  width: 100%;
  background: var(--color-quaternary);
  color: #1a1a3e;
  border: 3px solid #2a2a5e;
  border-radius: 50px;
  padding: 9px 15px;
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: var(--font-size-medium);
  text-align: left;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-item-button::before {
  content: '·';
  font-size: var(--font-size-medium);
  line-height: 1;
}

.nav-item-button:hover {
  background: var(--color-secondary);
  border-color: var(--color-tertiary);
  transform: translateX(4px);
}

.nav-item-button:active {
  transform: translateX(2px);
}

/* Hide the original nav-item-info spans (used only for data storage) */
.nav-item-info {
  display: none;
}

/* Info Display Box - Shows hover information */
.nav-group-info-box {
  flex: 1;
  background: linear-gradient(135deg,
    rgba(152, 152, 200, 0.15) 0%,
    rgba(26, 26, 62, 0.4) 100%);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 16px;
  padding: 16px 20px;
  min-height: 200px;
  min-width: 160px;
  display: flex;
  align-items: center;
  color: #ffffff;
  font-family: var(--font-primary);
  font-weight: 500;
  font-size: var(--font-size-medium);
  opacity: 1;
  box-shadow:
    0 8px 32px 0 rgba(0, 0, 0, 0.37),
    inset 0 1px 1px 0 rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
}

/* Glass reflection overlay */
.nav-group-info-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 40%;
  background: linear-gradient(180deg,
    rgba(255, 255, 255, 0.1) 0%,
    rgba(255, 255, 255, 0) 100%);
  pointer-events: none;
  border-radius: 16px 16px 0 0;
}

.nav-group-info-box .info-arrow {
  color: var(--color-secondary);
  font-weight: bold;
  margin-right: 8px;
  position: relative;
  z-index: 1;
}

.nav-group-info-box .info-text {
  flex: 1;
  position: relative;
  z-index: 1;
}

/* Scrollbar Styling for Drawer */
.nav-drawer::-webkit-scrollbar {
  width: 8px;
}

.nav-drawer::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

.nav-drawer::-webkit-scrollbar-thumb {
  background: rgba(152, 152, 200, 0.5);
  border-radius: 4px;
}

.nav-drawer::-webkit-scrollbar-thumb:hover {
  background: rgba(152, 152, 200, 0.7);
}

/* Glowing Stars Background for Navigation Drawer */
.nav-drawer::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  background-image:
    radial-gradient(2px 2px at 12% 18%, #86702F, transparent),
    radial-gradient(3px 3px at 88% 12%, #CBB77B, transparent),
    radial-gradient(2px 2px at 35% 28%, #413103, transparent),
    radial-gradient(4px 4px at 78% 38%, #86702F, transparent),
    radial-gradient(2px 2px at 18% 48%, #CBB77B, transparent),
    radial-gradient(3px 3px at 92% 58%, #413103, transparent),
    radial-gradient(2px 2px at 42% 68%, #86702F, transparent),
    radial-gradient(3px 3px at 68% 78%, #CBB77B, transparent),
    radial-gradient(4px 4px at 8% 88%, #413103, transparent),
    radial-gradient(2px 2px at 58% 15%, #86702F, transparent),
    radial-gradient(3px 3px at 22% 58%, #CBB77B, transparent),
    radial-gradient(2px 2px at 82% 48%, #413103, transparent),
    radial-gradient(4px 4px at 48% 42%, #86702F, transparent),
    radial-gradient(2px 2px at 72% 25%, #CBB77B, transparent),
    radial-gradient(3px 3px at 28% 85%, #413103, transparent),
    radial-gradient(2px 2px at 52% 95%, #86702F, transparent);
  background-size: 100% 100%;
  background-repeat: no-repeat;
  opacity: 0.5;
  animation: twinkle-nav 5.5s ease-in-out infinite;
  filter: blur(0.5px) drop-shadow(0 0 2px #86702F) drop-shadow(0 0 4px rgba(134, 112, 47, 0.5));
}

/* Ensure navigation content appears above stars */
.nav-group,
.nav-group-title,
.nav-items,
.nav-group-info-box {
  position: relative;
  z-index: 1;
}

@keyframes twinkle-nav {
  0%, 100% {
    opacity: 0.35;
  }
  50% {
    opacity: 0.65;
  }
}

/* ============================================
   RESPONSIVE STYLES
   ============================================ */

/* Tablet (768px and below) */
@media (max-width: 768px) {
  .nav-drawer {
    width: 95vw;
    max-width: 500px;
    padding: 70px 16px 30px 16px;
  }

  .nav-menu-button {
    top: 12px;
    left: 12px;
    padding: 10px 20px;
    font-size: var(--font-size-base);
  }

  .nav-items {
    width: 160px;
  }

  .nav-item-button {
    padding: 7px 13px;
    font-size: var(--font-size-base);
  }

  .nav-item-button::before {
    font-size: var(--font-size-base);
  }

  .nav-group-info-box {
    font-size: var(--font-size-small);
    padding: 14px 16px;
    min-height: 180px;
    min-width: 140px;
  }
}

/* Mobile (480px and below) */
@media (max-width: 480px) {
  .nav-drawer {
    max-width: 400px;
    padding: 48px 12px 24px 12px;
  }

  .nav-group-content {
    flex-direction: column;
    gap: 10px;
  }

  .nav-group-info-box {
    font-size: var(--font-size-tiny);
    padding: 12px 14px;
    min-height: 80px;
    width: 220px;
  }
}