/*
 * Navigation Components
 *
 * Unified navigation styling with mobile hamburger menu support.
 * Uses Stimulus controller for mobile menu interactions.
 */

/* ========================================================================
   CSS VARIABLES (Navigation-specific)
   ======================================================================== */
:root {
  --nav-height: 70px;
  --nav-bg: #ffffff;
  --nav-border: #e2e8f0;
  --nav-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  --nav-brand-color: #1e293b;
  --nav-brand-hover: #3b82f6;
  --nav-primary: #3b82f6;
  --nav-primary-hover: #2563eb;
  --nav-secondary: #6b7280;
  --nav-secondary-hover: #4b5563;
  --nav-danger: #dc3545;
  --nav-danger-hover: #c82333;
  --nav-admin: #8b5cf6;
  --nav-admin-hover: #7c3aed;
  --mobile-menu-width: 280px;
  --mobile-menu-transition: 0.3s ease;
}

/* ========================================================================
   MAIN NAVIGATION
   ======================================================================== */
.main-navigation {
  background: var(--nav-bg);
  border-radius: 15px;
  padding: 15px 25px;
  margin: 20px;
  margin-bottom: 30px;
  box-shadow: var(--nav-shadow);
  border: 1px solid var(--nav-border);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  position: relative;
  z-index: 100;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

/* ========================================================================
   NAVIGATION BRAND / LOGO
   ======================================================================== */
.nav-brand {
  display: flex;
  align-items: center;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--nav-brand-color);
  font-size: 1.2rem;
  font-weight: 700;
  transition: color 0.3s ease;
}

.brand-link:hover {
  color: var(--nav-brand-hover);
  text-decoration: none;
}

.brand-link:focus {
  outline: 2px solid var(--nav-primary);
  outline-offset: 2px;
  border-radius: 4px;
}

.brand-icon {
  color: var(--nav-primary);
  font-size: 1.1em;
}

.brand-text {
  font-weight: 700;
}

/* ========================================================================
   NAVIGATION MENU (Desktop)
   ======================================================================== */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Close button - hidden on desktop */
.mobile-menu-close {
  display: none;
}

/* ========================================================================
   NAVIGATION BUTTONS
   ======================================================================== */
.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 10px;
  font-weight: 500;
  font-size: 0.9rem;
  text-decoration: none;
  transition: all 0.3s ease;
  border: 2px solid;
  white-space: nowrap;
  cursor: pointer;
  line-height: 1.2;
}

.nav-btn:focus {
  outline: 2px solid var(--nav-primary);
  outline-offset: 2px;
}

.nav-btn i {
  font-size: 0.85em;
  flex-shrink: 0;
}

/* Primary button (Dashboard) */
.nav-btn--primary {
  background: white;
  border-color: var(--nav-primary);
  color: var(--nav-primary);
}

.nav-btn--primary:hover {
  background: var(--nav-primary);
  color: white;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

/* Secondary button (Profile) */
.nav-btn--secondary {
  background: white;
  border-color: var(--nav-secondary);
  color: var(--nav-secondary);
}

.nav-btn--secondary:hover {
  background: var(--nav-secondary);
  color: white;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(107, 114, 128, 0.3);
}

/* Admin button */
.nav-btn--admin {
  background: white;
  border-color: var(--nav-admin);
  color: var(--nav-admin);
}

.nav-btn--admin:hover {
  background: var(--nav-admin);
  color: white;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(139, 92, 246, 0.3);
}

/* Danger button (Logout) */
.nav-btn--danger {
  background: var(--nav-danger);
  border-color: var(--nav-danger);
  color: white;
}

.nav-btn--danger:hover {
  background: var(--nav-danger-hover);
  border-color: var(--nav-danger-hover);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(220, 53, 69, 0.3);
}

/* ========================================================================
   MOBILE HAMBURGER BUTTON
   ======================================================================== */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 21px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
  position: relative;
}

.mobile-menu-toggle span {
  display: block;
  width: 100%;
  height: 3px;
  background: var(--nav-primary);
  border-radius: 3px;
  transition: all 0.3s ease;
  transform-origin: center;
}

/* Hamburger animation to X */
.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* ========================================================================
   MOBILE MENU BACKDROP
   ======================================================================== */
.mobile-menu-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 998;
  opacity: 0;
  transition: opacity var(--mobile-menu-transition);
}

.mobile-menu-backdrop.active {
  display: block;
  opacity: 1;
}

/* ========================================================================
   MOBILE STYLES (max-width: 768px)
   ======================================================================== */
@media (max-width: 768px) {
  .main-navigation {
    padding: 12px 20px;
    margin: 15px;
    margin-bottom: 15px;
  }

  .nav-container {
    flex-wrap: nowrap;
  }

  /* Show hamburger button */
  .mobile-menu-toggle {
    display: flex;
  }

  /* Mobile slide-out menu */
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: var(--mobile-menu-width);
    height: 100vh;
    background: white;
    box-shadow: -5px 0 25px rgba(0, 0, 0, 0.15);
    padding: 80px 20px 30px;
    transition: right var(--mobile-menu-transition);
    z-index: 999;
    overflow-y: auto;
    flex-direction: column;
    gap: 12px;
    align-items: stretch;
  }

  .nav-menu.open {
    right: 0;
  }

  /* Mobile close button */
  .mobile-menu-close {
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: #f1f5f9;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    color: #64748b;
    font-size: 1.2rem;
    transition: all 0.2s ease;
  }

  .mobile-menu-close:hover {
    background: #e2e8f0;
    color: #1e293b;
  }

  /* Mobile nav buttons - full width, stacked */
  .nav-btn {
    width: 100%;
    justify-content: flex-start;
    padding: 14px 16px;
    font-size: 1rem;
    border-radius: 12px;
  }

  .nav-btn i {
    font-size: 1rem;
    width: 24px;
    text-align: center;
  }

  .nav-btn span {
    flex: 1;
  }
}

/* ========================================================================
   ADMIN NAVIGATION VARIANT
   ======================================================================== */
.main-navigation--admin {
  background: linear-gradient(135deg, #1e293b, #334155);
  border-color: #475569;
}

.main-navigation--admin .brand-link {
  color: white;
}

.main-navigation--admin .brand-link:hover {
  color: #93c5fd;
}

.main-navigation--admin .brand-icon {
  color: #93c5fd;
}

.main-navigation--admin .mobile-menu-toggle span {
  background: white;
}

.main-navigation--admin .nav-btn--primary {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
  color: white;
}

.main-navigation--admin .nav-btn--primary:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.5);
  color: white;
}

.main-navigation--admin .nav-btn--secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.2);
  color: #cbd5e1;
}

.main-navigation--admin .nav-btn--secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  color: white;
}

/* ========================================================================
   BREADCRUMB NAVIGATION
   ======================================================================== */
.breadcrumb-navigation {
  margin-bottom: 30px;
  text-align: center;
}

.breadcrumb-navigation .breadcrumb-modern {
  display: flex;
  justify-content: center;
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}

.breadcrumb-navigation .breadcrumb-modern li {
  display: flex;
  align-items: center;
  color: #64748b;
  font-size: 0.9rem;
  line-height: 1.4;
}

.breadcrumb-navigation .breadcrumb-modern li:not(:last-child)::after {
  content: "→";
  margin-left: 10px;
  color: #94a3b8;
  font-weight: normal;
}

.breadcrumb-navigation .breadcrumb-modern li a {
  color: #3b82f6;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.breadcrumb-navigation .breadcrumb-modern li a:hover {
  color: #1d4ed8;
  text-decoration: underline;
}

.breadcrumb-navigation .breadcrumb-modern li a:focus {
  outline: 2px solid #3b82f6;
  outline-offset: 2px;
  border-radius: 2px;
}

.breadcrumb-navigation .breadcrumb-modern li.active {
  color: #1e293b;
  font-weight: 600;
}

/* Responsive breadcrumbs */
@media (max-width: 768px) {
  .breadcrumb-navigation .breadcrumb-modern {
    font-size: 0.85rem;
    gap: 8px;
  }

  .breadcrumb-navigation .breadcrumb-modern li:not(:last-child)::after {
    margin-left: 8px;
  }
}

@media (max-width: 480px) {
  .breadcrumb-navigation .breadcrumb-modern {
    flex-direction: column;
    gap: 5px;
  }

  .breadcrumb-navigation .breadcrumb-modern li:not(:last-child)::after {
    content: "↓";
    margin-left: 0;
    margin-top: 2px;
  }
}

/* ========================================================================
   IMPERSONATION BANNER
   ======================================================================== */
.impersonation-banner {
  background: linear-gradient(135deg, #ff6b6b, #ff5252);
  color: white;
  padding: 12px 20px;
  text-align: center;
  font-weight: 600;
  font-size: 0.9rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 15px;
  flex-wrap: wrap;
}

.impersonation-banner a {
  color: white;
  text-decoration: underline;
}

.impersonation-banner a:hover {
  color: #fef2f2;
}