/**
 * KINGDOM NEXUS — NAVIGATION STYLES v3.1 LEGACY PARITY
 * PURPOSE:
 * - Navbar (top, public/customer)
 * - Cart drawer (right side)
 * - Location chip (dark, legacy style)
 * - Admin sidebar overlay (public pages)
 * - Mobile responsive (768px, 700px, 480px)
 * - Corporate sidebar on private pages (see corporate-sidebar-style.css)
 * 
 * SCOPE:
 * - Public pages: /, /explore-hubs, /menu
 * - Customer pages: /cart, /checkout, /profile
 * - Admin overlay: Public pages for admin users
 * 
 * [KNX-NAV-3.1] [KNX-TASK-NAV-003]
 */

/* ═══════════════════════════════════════════════════════════════
   CSS VARIABLES
   ═══════════════════════════════════════════════════════════════ */

:root {
  --knx-nav-h: 70px;
  --knx-accent: #225638;
  --knx-accent-hover: #1a422b;
  --knx-bg: #ffffff;
  --knx-border: #e5e7eb;
  --knx-text: #111827;
  --knx-text-muted: #6b7280;
  --knx-cart-badge: #ef4444;
  --knx-loc-chip-bg: #ecfdf5;
  --knx-loc-chip-text: #065f46;
  --knx-loc-chip-icon: #06b6d4;
  --knx-sidebar-w: 320px;
  --knx-overlay-bg: rgba(0, 0, 0, 0.5);
  --knx-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ═══════════════════════════════════════════════════════════════
   NAVBAR (Top Navigation)
   ═══════════════════════════════════════════════════════════════ */

.knx-nav {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--knx-bg);
  border-bottom: 1px solid var(--knx-border);
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  height: var(--knx-nav-h);
}

.knx-nav__inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

/* Brand */
.knx-nav__brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--knx-text);
  font-weight: 600;
  font-size: 1.125rem;
  transition: opacity var(--knx-transition);
  flex-shrink: 0;
}

.knx-nav__brand:hover {
  opacity: 0.8;
}

.knx-nav__logo {
  font-size: 1.75rem;
  line-height: 1;
}

.knx-nav__brand-text {
  white-space: nowrap;
}

/* Center: Location Chip */
.knx-nav__center {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* [KNX-TASK-NAV-003] Fix 5: Dark location chip (legacy parity) */
.knx-loc-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: #0f172a;
  color: #ffffff;
  border: 1px solid var(--knx-border);
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--knx-transition);
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.knx-loc-chip:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.22);
}

.knx-loc-chip i {
  color: #38bdf8;
  font-size: 1rem;
}

.knx-loc-chip__text {
  font-weight: 600;
}

/* Actions (Right Side) */
.knx-nav__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
}

/* [KNX-TASK-NAV-003] Fix 6: Gray cart button (legacy parity) */
/* Cart Button */
.knx-nav__cart {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.125rem;
  background: #f9fafb;
  color: var(--knx-text);
  border: 1px solid var(--knx-border);
  border-radius: 50px;
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 600;
  transition: all var(--knx-transition);
  white-space: nowrap;
  height: 52px;
}

.knx-nav__cart:hover {
  background: #f3f4f6;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.knx-nav__cart svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* [KNX-TASK-NAV-003] Fix 6: Cart badge with border (legacy parity) */
.knx-nav__cart-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  min-width: 22px;
  height: 22px;
  background: var(--knx-cart-badge);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 6px;
  box-shadow: 0 2px 6px rgba(239, 68, 68, 0.4);
  border: 2px solid var(--knx-bg);
}

.knx-nav__cart-badge[data-count="0"],
.knx-nav__cart-badge:empty {
  display: none;
}

/* [KNX-TASK-NAV-003] Fix 3: Username button (legacy parity) */
/* Username Display (non-admin) */
.knx-nav__username {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.125rem;
  background: #f9fafb;
  border: 1px solid var(--knx-border);
  border-radius: 50px;
  color: var(--knx-text);
  font-size: 0.9375rem;
  font-weight: 600;
  white-space: nowrap;
  height: 52px;
}

/* Username Button (admin - clickable) */
.knx-nav__username-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.625rem 1.125rem;
  background: #f9fafb;
  border: 1px solid var(--knx-border);
  border-radius: 50px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--knx-text);
  transition: all var(--knx-transition);
  height: 52px;
}

.knx-nav__username-btn:hover {
  background: var(--knx-accent);
  color: #fff;
  border-color: var(--knx-accent);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(34, 86, 56, 0.2);
}

.knx-nav__username-text {
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 150px;
  margin-left: 5px;
  
}

/* [KNX-TASK-NAV-003] Fix 4: Desktop/mobile logout separation (legacy parity) */
/* Logout Button */
.knx-nav__logout {
  display: inline-block;
  margin: 0;
}

.knx-nav__logout-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.125rem;
  background: #f9fafb;
  border: 1px solid var(--knx-border);
  border-radius: 50px;
  color: var(--knx-text);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--knx-transition);
  white-space: nowrap;
  height: 52px;
}

.knx-nav__logout-btn:hover {
  background: var(--knx-accent);
  border-color: var(--knx-accent);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(34, 86, 56, 0.2);
}

.knx-nav__logout-btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  transition: color var(--knx-transition);
}

.knx-nav__logout-btn:hover svg {
  color: #fff;
}

/* Hide mobile logout by default (shown in admin sidebar) */
.knx-nav__logout--mobile {
  display: none;
}

/* Login Link */
.knx-nav__login {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--knx-accent);
  color: white;
  border-radius: 0.5rem;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--knx-transition);
  white-space: nowrap;
}

.knx-nav__login:hover {
  background: var(--knx-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.knx-nav__login svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════════════
/* ═══════════════════════════════════════════════════════════════
   CART DRAWER (Right Side)
   ═══════════════════════════════════════════════════════════════ */

.knx-cart-drawer {
  position: fixed;
  top: 0;
  right: -400px;
  width: 400px;
  height: 100vh;
  background: white;
  z-index: 1300;
  box-shadow: -2px 0 12px rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  transition: right var(--knx-transition);
}

.knx-cart-drawer.active {
  right: 0;
}

.knx-cart-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem;
  border-bottom: 1px solid var(--knx-border);
}

.knx-cart-drawer__header h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--knx-text);
  margin: 0;
}

.knx-cart-drawer__close {
  background: transparent;
  border: none;
  font-size: 2rem;
  color: var(--knx-text-muted);
  cursor: pointer;
  padding: 0;
  line-height: 1;
  transition: color var(--knx-transition);
}

.knx-cart-drawer__close:hover {
  color: var(--knx-text);
}

.knx-cart-drawer__body {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
}

.knx-cart-drawer__footer {
  border-top: 1px solid var(--knx-border);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.knx-cart-drawer__total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.125rem;
}

.knx-cart-drawer__review-btn,
.knx-cart-drawer__checkout-btn {
  display: block;
  width: 100%;
  padding: 0.875rem;
  text-align: center;
  border-radius: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--knx-transition);
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.knx-cart-drawer__review-btn {
  background: #f3f4f6;
  color: var(--knx-text);
  border: 1px solid var(--knx-border);
}

.knx-cart-drawer__review-btn:hover {
  background: #e5e7eb;
}

.knx-cart-drawer__checkout-btn {
  background: var(--knx-accent);
  color: white;
}

.knx-cart-drawer__checkout-btn:hover {
  background: var(--knx-accent-hover);
}

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

/* Tablet: 768px */
@media (max-width: 768px) {
  .knx-nav__inner {
    padding: 0 1rem;
  }

  /* Hide texts, show icons only */
  .knx-nav__brand-text,
  .knx-nav__cart span:not(.knx-nav__cart-badge),
  .knx-nav__username-text,
  .knx-nav__logout-btn span,
  .knx-nav__login span {
    display: none;
  }

  /* Adjust spacing */
  .knx-nav__actions {
    gap: 0.5rem;
  }

  .knx-nav__cart,
  .knx-nav__username,
  .knx-nav__logout-btn,
  .knx-nav__login {
    padding: 0.5rem 0.75rem;
    gap: 0;
  }

  /* Location chip: keep text but smaller */
  .knx-loc-chip {
    font-size: 0.8125rem;
    padding: 0.375rem 0.875rem;
  }
}

/* Compact: 700px */
@media (max-width: 700px) {
  .knx-nav__inner {
    gap: 0.75rem;
  }

  /* Cart and username: icon only */
  .knx-nav__cart,
  .knx-nav__username,
  .knx-nav__logout-btn,
  .knx-nav__login {
    padding: 0.5rem;
    width: 40px;
    height: 40px;
    justify-content: center;
  }

  .knx-nav__cart svg,
  .knx-nav__logout-btn svg,
  .knx-nav__login svg {
    width: 20px;
    height: 20px;
  }

  .knx-nav__cart-badge {
    top: -4px;
    right: -4px;
    font-size: 0.6875rem;
    padding: 0.0625rem 0.25rem;
  }

  /* Location chip: smaller */
  .knx-loc-chip {
    font-size: 0.75rem;
    padding: 0.25rem 0.625rem;
  }

  .knx-loc-chip i {
    font-size: 0.875rem;
  }

  /* Cart drawer: full width */
  .knx-cart-drawer {
    width: 100%;
    right: -100%;
  }

  /* [KNX-TASK-NAV-003] Show mobile logout in admin sidebar */
  .knx-admin-sidebar .knx-nav__logout--mobile {
    display: block;
  }

  .knx-nav__logout--desktop {
    display: none;
  }
}

/* Smallest: 480px */
@media (max-width: 480px) {
  .knx-nav {
    height: 60px;
  }

  .knx-nav__inner {
    gap: 0.5rem;
    padding: 0 0.75rem;
  }

  .knx-nav__logo {
    font-size: 1.5rem;
  }

  .knx-nav__actions {
    gap: 0.375rem;
  }

  .knx-nav__cart,
  .knx-nav__username-btn,
  .knx-nav__logout-btn,
  .knx-nav__login {
    width: 36px;
    height: 36px;
    padding: 0.375rem;
  }


  .knx-nav__username-btn i {
    margin-right: 0.4rem;
    font-size: 1rem;
    line-height: 1;
    color: inherit;
  }
  .knx-loc-chip {
    font-size: 0.6875rem;
    padding: 0.25rem 0.5rem;
    gap: 0.25rem;
  }
}

/* ═══════════════════════════════════════════════════════════════
   ADMIN SIDEBAR OVERLAY (Public Pages Only)
   [KNX-TASK-NAV-003] Fix 1: Admin navigation on public pages
   ═══════════════════════════════════════════════════════════════ */

/* Overlay */
.knx-admin-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  z-index: 1299;
}

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

/* Sidebar */
.knx-admin-sidebar {
  position: fixed;
  top: 0;
  left: -320px;
  width: 320px;
  height: 100vh;
  background: #0a0a0a;
  box-shadow: 4px 0 16px rgba(0, 0, 0, 0.3);
  z-index: 1300;
  transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
}

.knx-admin-sidebar.active {
  left: 0;
}

/* Sidebar Header */
.knx-admin-sidebar__header {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px 20px;
  border-bottom: 1px solid #222;
  background: #111;
  position: relative;
}

.knx-admin-sidebar__logo {
  color: #0b793a;
  font-size: 28px;
  text-decoration: none;
  transition: color 0.3s;
}

.knx-admin-sidebar__logo:hover {
  color: #12a550;
}

.knx-admin-sidebar__close {
  position: absolute;
  right: 10px;
  border: none;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  padding: 10px;
}

.knx-admin-sidebar__close:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: rotate(90deg);
}

.knx-admin-sidebar__close svg {
  color: #fff;
  width: 22px;
  height: 22px;
  stroke-width: 2.5;
}

/* Sidebar Navigation */
.knx-admin-sidebar__nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 16px 0;
  scrollbar-width: thin;
  scrollbar-color: #0b793a #111;
  display: flex;
  flex-direction: column;
}

.knx-admin-sidebar__nav::-webkit-scrollbar {
  width: 6px;
}

.knx-admin-sidebar__nav::-webkit-scrollbar-thumb {
  background-color: #0b793a;
  border-radius: 10px;
}

.knx-admin-sidebar__nav::-webkit-scrollbar-track {
  background: #111;
}

.knx-admin-sidebar__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  text-decoration: none;
  color: #ddd;
  font-weight: 500;
  font-size: 15px;
  transition: all 0.3s;
  border: none;
  background: transparent;
  width: 100%;
  cursor: pointer;
  text-align: left;
}

.knx-admin-sidebar__link:hover {
  background: #0b793a;
  color: #fff;
}

.knx-admin-sidebar__link--active {
  background: #0b793a;
  color: #fff;
}

.knx-admin-sidebar__link i {
  width: 20px;
  text-align: center;
  font-size: 17px;
  flex-shrink: 0;
}

.knx-admin-sidebar__divider {
  border: none;
  border-top: 1px solid #222;
  margin: 12px 18px;
}

.knx-admin-sidebar__logout {
  color: #ff4444 !important;
  background: rgba(255, 68, 68, 0.1) !important;
}

.knx-admin-sidebar__logout:hover {
  background: rgba(255, 68, 68, 0.2) !important;
  color: #ff6666 !important;
}

.knx-admin-sidebar__logout i {
  color: #ff4444 !important;
}

/* ═══════════════════════════════════════════════════════════════
   PRINT STYLES
   ═══════════════════════════════════════════════════════════════ */

@media print {
  .knx-nav,
  .knx-cart-drawer,
  .knx-admin-sidebar,
  .knx-admin-overlay {
    display: none !important;
  }
}