/* ==========================================================================
   Navigation — Mega-Menu + Mobile Drawer
   ColorFlow / Walmart CSI Compass
   ========================================================================== */

/* ---- CSS Variables (navigation-specific) ---- */
:root {
  --nav-bg: #0f172a;
  --nav-bg-hover: #1e293b;
  --nav-text: #cbd5e1;
  --nav-text-hover: #ffffff;
  --nav-text-active: #ffffff;
  --nav-accent: #f59e0b;
  --nav-accent-glow: rgba(245, 158, 11, 0.15);
  --nav-divider: #1e293b;
  --nav-panel-bg: #ffffff;
  --nav-panel-shadow: 0 20px 60px rgba(0,0,0,0.18), 0 4px 16px rgba(0,0,0,0.10);
  --nav-panel-border: #e2e8f0;
  --nav-panel-text: #334155;
  --nav-panel-text-hover: #0f172a;
  --nav-panel-item-hover: #f8fafc;
  --nav-panel-item-active: #fffbeb;
  --nav-radius: 6px;
  --nav-transition: 180ms cubic-bezier(0.4, 0, 0.2, 1);
  --nav-height: 46px;
  --nav-drawer-width: 320px;
}

/* ---- Mega Nav Container ---- */
.cf-mega-nav {
  position: relative;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--nav-divider);
  z-index: 900;
  font-family: var(--font-heading, 'Outfit', sans-serif);
}

/* ---- Nav Bar (horizontal strip of categories) ---- */
.cf-nav-bar {
  display: flex;
  align-items: stretch;
  flex-wrap: wrap;
  min-height: var(--nav-height);
  padding: 0 4px;
}

/* Scrollbar styling (for mobile drawer only) */
.cf-nav-bar::-webkit-scrollbar {
  width: 3px;
  height: 3px;
}

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

.cf-nav-bar::-webkit-scrollbar-thumb {
  background: var(--nav-bg-hover);
  border-radius: 3px;
}

/* ---- Category Trigger (top-level button) ---- */
.cf-nav-trigger {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 0 14px;
  height: var(--nav-height);
  background: none;
  border: none;
  color: var(--nav-text);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.035em;
  text-transform: uppercase;
  white-space: nowrap;
  cursor: pointer;
  transition: color var(--nav-transition), background var(--nav-transition);
  position: relative;
  border-bottom: 2px solid transparent;
}

.cf-nav-trigger:hover,
.cf-nav-trigger:focus-visible {
  color: var(--nav-text-hover);
  background: var(--nav-bg-hover);
}

.cf-nav-trigger[aria-expanded="true"] {
  color: var(--nav-text-active);
  background: var(--nav-bg-hover);
  border-bottom-color: var(--nav-accent);
}

.cf-nav-trigger:focus-visible {
  outline: 2px solid var(--nav-accent);
  outline-offset: -2px;
}

/* Chevron icon */
.cf-nav-chevron {
  width: 10px;
  height: 10px;
  opacity: 0.5;
  transition: transform var(--nav-transition), opacity var(--nav-transition);
  flex-shrink: 0;
}

.cf-nav-trigger:hover .cf-nav-chevron,
.cf-nav-trigger[aria-expanded="true"] .cf-nav-chevron {
  opacity: 0.8;
}

.cf-nav-trigger[aria-expanded="true"] .cf-nav-chevron {
  transform: rotate(180deg);
}

/* ---- Direct Link (single item, no dropdown) ---- */
.cf-nav-link {
  display: flex;
  align-items: center;
  padding: 0 14px;
  height: var(--nav-height);
  color: var(--nav-text);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.035em;
  text-transform: uppercase;
  white-space: nowrap;
  text-decoration: none;
  transition: color var(--nav-transition), background var(--nav-transition);
  border-bottom: 2px solid transparent;
}

.cf-nav-link:hover,
.cf-nav-link:focus-visible {
  color: var(--nav-text-hover);
  background: var(--nav-bg-hover);
  text-decoration: none;
}

.cf-nav-link.active {
  color: var(--nav-text-active);
  border-bottom-color: var(--nav-accent);
}

.cf-nav-link:focus-visible {
  outline: 2px solid var(--nav-accent);
  outline-offset: -2px;
}

/* ---- Category Container ---- */
.cf-nav-category {
  position: relative;
  display: flex;
  align-items: stretch;
}

/* ---- Dropdown Panel ---- */
.cf-nav-panel {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 260px;
  max-width: 380px;
  background: var(--nav-panel-bg);
  border: 1px solid var(--nav-panel-border);
  border-top: 2px solid var(--nav-accent);
  border-radius: 0 0 var(--nav-radius) var(--nav-radius);
  box-shadow: var(--nav-panel-shadow);
  padding: 6px 0;
  z-index: 950;
  transform-origin: top center;
}

/* Panel items */
.cf-nav-panel a {
  display: block;
  padding: 10px 20px;
  color: var(--nav-panel-text);
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: normal;
  text-transform: none;
  text-decoration: none;
  transition: background var(--nav-transition), color var(--nav-transition);
  border-left: 3px solid transparent;
}

.cf-nav-panel a:hover,
.cf-nav-panel a:focus-visible {
  background: var(--nav-panel-item-hover);
  color: var(--nav-panel-text-hover);
  border-left-color: var(--nav-accent);
  text-decoration: none;
}

.cf-nav-panel a.active {
  background: var(--nav-panel-item-active);
  color: var(--nav-panel-text-hover);
  border-left-color: var(--nav-accent);
  font-weight: 600;
}

.cf-nav-panel a:focus-visible {
  outline: 2px solid var(--nav-accent);
  outline-offset: -2px;
}

/* Panel section divider */
.cf-nav-panel-divider {
  height: 1px;
  background: var(--nav-panel-border);
  margin: 4px 14px;
}

/* Panel section label */
.cf-nav-panel-label {
  padding: 8px 18px 4px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #94a3b8;
  user-select: none;
}

/* ---- Wide panel (for categories with many items) ---- */
.cf-nav-panel-wide {
  min-width: 320px;
  max-width: 460px;
}

.cf-nav-panel-grid {
  min-width: 480px;
  max-width: 560px;
  padding: 8px 0;
}

.cf-nav-panel-grid .cf-nav-panel-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

/* ---- Sub-dropdown (nested) ---- */
.cf-nav-sub-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 9px 18px;
  background: none;
  border: none;
  color: var(--nav-panel-text);
  font-size: 13px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: background var(--nav-transition);
  border-left: 3px solid transparent;
  font-family: inherit;
}

.cf-nav-sub-trigger:hover {
  background: var(--nav-panel-item-hover);
  border-left-color: var(--nav-accent);
}

.cf-nav-sub-trigger svg {
  width: 10px;
  height: 10px;
  opacity: 0.4;
  transition: transform var(--nav-transition);
}

.cf-nav-sub-trigger[aria-expanded="true"] svg {
  transform: rotate(90deg);
}

.cf-nav-sub-panel {
  background: #f8fafc;
  border-top: 1px solid var(--nav-panel-border);
  border-bottom: 1px solid var(--nav-panel-border);
}

.cf-nav-sub-panel a {
  padding-left: 32px;
  font-size: 12.5px;
}

/* ---- Hamburger Toggle (mobile) ---- */
.cf-nav-hamburger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  margin: 0 4px;
  flex-shrink: 0;
}

.cf-nav-hamburger-lines {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 22px;
}

.cf-nav-hamburger-lines span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--nav-text);
  border-radius: 1px;
  transition: transform var(--nav-transition), opacity var(--nav-transition), background var(--nav-transition);
}

.cf-nav-hamburger:hover .cf-nav-hamburger-lines span {
  background: var(--nav-text-hover);
}

/* Hamburger → X transform */
.cf-nav-hamburger[aria-expanded="true"] .cf-nav-hamburger-lines span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.cf-nav-hamburger[aria-expanded="true"] .cf-nav-hamburger-lines span:nth-child(2) {
  opacity: 0;
}

.cf-nav-hamburger[aria-expanded="true"] .cf-nav-hamburger-lines span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---- Mobile Overlay ---- */
.cf-nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 899;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}

/* ---- Responsive: Tablet & below (768px = phones & portrait tablets get drawer) ---- */
@media (max-width: 768px) {
  .cf-nav-hamburger {
    display: flex;
  }

  .cf-nav-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--nav-drawer-width);
    max-width: 85vw;
    height: 100vh;
    height: 100dvh;
    flex-direction: column;
    flex-wrap: nowrap;
    overflow-x: hidden;
    overflow-y: auto;
    background: var(--nav-bg);
    z-index: 950;
    padding: 0;
    transform: translateX(-100%);
    transition: transform 280ms cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: none;
  }

  .cf-nav-bar.cf-drawer-open {
    transform: translateX(0);
    box-shadow: 8px 0 30px rgba(0,0,0,0.3);
  }

  /* Drawer header */
  .cf-nav-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    border-bottom: 1px solid var(--nav-divider);
    flex-shrink: 0;
  }

  .cf-nav-drawer-title {
    color: var(--nav-text-active);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.02em;
  }

  .cf-nav-drawer-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--nav-bg-hover);
    border: none;
    border-radius: 4px;
    color: var(--nav-text);
    font-size: 18px;
    cursor: pointer;
    transition: background var(--nav-transition), color var(--nav-transition);
  }

  .cf-nav-drawer-close:hover {
    background: #334155;
    color: var(--nav-text-active);
  }

  /* Categories stack vertically in drawer */
  .cf-nav-category {
    flex-direction: column;
  }

  .cf-nav-trigger {
    height: auto;
    padding: 12px 18px;
    justify-content: space-between;
    border-bottom: none;
    border-left: 3px solid transparent;
  }

  .cf-nav-trigger[aria-expanded="true"] {
    border-bottom: none;
    border-left-color: var(--nav-accent);
  }

  .cf-nav-link {
    height: auto;
    padding: 12px 18px;
    border-bottom: none;
    border-left: 3px solid transparent;
  }

  .cf-nav-link.active {
    border-bottom: none;
    border-left-color: var(--nav-accent);
  }

  /* Dropdown panel becomes inline-expanded in drawer */
  .cf-nav-panel,
  .cf-nav-panel-wide,
  .cf-nav-panel-grid {
    position: static;
    min-width: 0;
    max-width: none;
    width: 100%;
    background: rgba(255,255,255,0.03);
    border: none;
    border-top: none;
    border-radius: 0;
    box-shadow: none;
    padding: 2px 0;
    border-left: 3px solid var(--nav-accent);
    margin-left: 15px;
  }

  .cf-nav-panel a {
    color: var(--nav-text);
    font-size: 13px;
    padding: 10px 18px;
    border-left: none;
  }

  .cf-nav-panel a:hover {
    background: var(--nav-bg-hover);
    color: var(--nav-text-hover);
    border-left: none;
  }

  .cf-nav-panel a.active {
    background: var(--nav-accent-glow);
    color: var(--nav-accent);
    border-left: none;
  }

  .cf-nav-panel-grid .cf-nav-panel-cols {
    grid-template-columns: 1fr;
  }

  .cf-nav-sub-panel {
    background: rgba(255,255,255,0.02);
    border-top-color: var(--nav-divider);
    border-bottom-color: var(--nav-divider);
  }

  .cf-nav-sub-panel a {
    color: var(--nav-text);
  }

  .cf-nav-sub-trigger {
    color: var(--nav-text);
    border-left: none;
  }

  .cf-nav-sub-trigger:hover {
    background: var(--nav-bg-hover);
    border-left: none;
  }

  /* Divider in drawer */
  .cf-nav-panel-divider {
    background: var(--nav-divider);
    margin: 4px 18px;
  }

  .cf-nav-panel-label {
    color: #64748b;
  }

  /* Hide drawer header on desktop */
  .cf-nav-drawer-header {
    display: flex;
  }
}

/* Desktop: hide drawer header */
@media (min-width: 769px) {
  .cf-nav-drawer-header {
    display: none;
  }

  /* Fade-in for dropdown panels */
  .cf-nav-panel[x-cloak] {
    display: none;
  }
}

/* ---- Transition utilities for Alpine.js ---- */
.cf-nav-panel-enter {
  transition: opacity 150ms ease, transform 150ms ease;
}

.cf-nav-panel-enter-start {
  opacity: 0;
  transform: translateY(-4px);
}

.cf-nav-panel-enter-end {
  opacity: 1;
  transform: translateY(0);
}

.cf-nav-panel-leave {
  transition: opacity 100ms ease, transform 100ms ease;
}

.cf-nav-panel-leave-start {
  opacity: 1;
  transform: translateY(0);
}

.cf-nav-panel-leave-end {
  opacity: 0;
  transform: translateY(-4px);
}

/* ---- Badge (item count or status indicator) ---- */
.cf-nav-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  background: var(--nav-accent);
  color: var(--nav-bg);
  font-size: 10px;
  font-weight: 700;
  border-radius: 9px;
  line-height: 1;
  margin-left: 6px;
}

/* ---- Active category indicator ---- */
.cf-nav-category.has-active > .cf-nav-trigger {
  color: var(--nav-text-active);
}

.cf-nav-category.has-active > .cf-nav-trigger::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 14px;
  right: 14px;
  height: 2px;
  background: var(--nav-accent);
  border-radius: 2px 2px 0 0;
}

/* ---- Compact mode for roles with few items ---- */
.cf-mega-nav.cf-nav-compact .cf-nav-trigger,
.cf-mega-nav.cf-nav-compact .cf-nav-link {
  padding: 0 12px;
  font-size: 12px;
}

/* ---- Print: hide navigation ---- */
@media print {
  .cf-mega-nav {
    display: none;
  }
}