/**
 * Mobile Drawer Component
 * =======================
 * Slide-out navigation drawer for mobile devices.
 * Triggered by hamburger menu via drawer:toggle events.
 * Uses the neon/glass design system from :root vars.
 */

/* ==========================================================================
   Drawer Container
   ========================================================================== */

.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 280px;
  height: 100vh;
  height: 100dvh; /* Dynamic viewport height for mobile */
  
  /* Glass morphism background */
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid var(--glass-border);
  box-shadow: 4px 0 30px rgba(0, 0, 0, 0.5);
  
  /* Slide animation */
  transform: translateX(-100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Layering */
  z-index: 200;
  
  /* Content layout */
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.mobile-drawer.is-open {
  transform: translateX(0);
}

/* Neon accent line on the right edge when open */
.mobile-drawer.is-open::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 2px;
  height: 100%;
  background: linear-gradient(
    180deg,
    var(--neon-cyan) 0%,
    var(--neon-purple) 50%,
    var(--neon-pink) 100%
  );
  opacity: 0.8;
  box-shadow: 0 0 15px var(--neon-purple);
}


/* ==========================================================================
   Backdrop Overlay
   ========================================================================== */

.drawer-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  z-index: 199;
}

.drawer-backdrop.is-visible {
  opacity: 1;
  visibility: visible;
}


/* ==========================================================================
   Drawer Header (User Info)
   ========================================================================== */

.drawer-header {
  padding: 1.5rem 1.25rem;
  border-bottom: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.02);
}

.drawer-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.drawer-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--neon-purple), var(--neon-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  text-transform: uppercase;
  border: 2px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 20px rgba(191, 90, 242, 0.3);
}

.drawer-user-info {
  flex: 1;
  min-width: 0;
}

.drawer-user-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.drawer-user-email {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}


/* ==========================================================================
   Drawer Navigation (Tab Links)
   ========================================================================== */

.drawer-nav {
  flex: 1;
  overflow-y: auto;
  padding: 0.75rem 0;
  
  /* Custom scrollbar */
  scrollbar-width: thin;
  scrollbar-color: var(--glass-border) transparent;
}

.drawer-nav::-webkit-scrollbar {
  width: 4px;
}

.drawer-nav::-webkit-scrollbar-track {
  background: transparent;
}

.drawer-nav::-webkit-scrollbar-thumb {
  background: var(--glass-border);
  border-radius: 2px;
}

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

.drawer-nav-item {
  padding: 0 0.75rem;
}

.drawer-nav-link {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.875rem 1rem;
  border-radius: 10px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
  background: transparent;
  width: 100%;
  text-align: left;
}

.drawer-nav-link:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}

.drawer-nav-link:active {
  background: rgba(255, 255, 255, 0.08);
  transform: scale(0.98);
}

/* Active tab state */
.drawer-nav-link.is-active {
  background: rgba(191, 90, 242, 0.12);
  color: var(--neon-purple);
  border-color: rgba(191, 90, 242, 0.25);
  box-shadow: inset 0 0 20px rgba(191, 90, 242, 0.1);
}

.drawer-nav-link.is-active .drawer-nav-icon {
  filter: drop-shadow(0 0 6px var(--neon-purple));
}

/* Icon styles */
.drawer-nav-icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  opacity: 0.9;
}

.drawer-nav-link.is-active .drawer-nav-icon {
  opacity: 1;
}


/* ==========================================================================
   Drawer Footer (Settings & Logout)
   ========================================================================== */

.drawer-footer {
  padding: 0.75rem;
  border-top: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.02);
}

.drawer-footer-link {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
}

.drawer-footer-link:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}

.drawer-footer-link:active {
  transform: scale(0.98);
}

/* Logout button special styling */
.drawer-logout-btn {
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.drawer-logout-btn:hover {
  color: var(--neon-pink);
  background: rgba(255, 42, 109, 0.1);
}

.drawer-footer-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  opacity: 0.8;
}


/* ==========================================================================
   Focus States (Accessibility)
   ========================================================================== */

.drawer-nav-link:focus-visible,
.drawer-footer-link:focus-visible {
  outline: 2px solid var(--neon-cyan);
  outline-offset: 2px;
}


/* ==========================================================================
   Body Scroll Lock
   ========================================================================== */

body.drawer-open {
  overflow: hidden;
  touch-action: none;
}


/* ==========================================================================
   Desktop: Hide Drawer Components
   ========================================================================== */

@media (min-width: 769px) {
  .mobile-drawer,
  .drawer-backdrop {
    display: none !important;
  }
  
  body.drawer-open {
    overflow: auto;
    touch-action: auto;
  }
}


/* ==========================================================================
   Small Mobile Adjustments
   ========================================================================== */

@media (max-width: 360px) {
  .mobile-drawer {
    width: 260px;
  }
  
  .drawer-header {
    padding: 1.25rem 1rem;
  }
  
  .drawer-avatar {
    width: 42px;
    height: 42px;
    font-size: 1.1rem;
  }
  
  .drawer-nav-link {
    padding: 0.75rem 0.875rem;
    font-size: 0.9rem;
  }
}


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

@media (prefers-reduced-motion: reduce) {
  .mobile-drawer,
  .drawer-backdrop {
    transition: none;
  }
  
  .drawer-nav-link,
  .drawer-footer-link {
    transition: none;
  }
}