/* =========================================================================
   KANZ HARDWARE - MASTER ARCHITECTURAL STYLESHEET
   Deep Charcoal (#1F2933) • Kanz Brand Red (#C62828) • Clean Typography
   ========================================================================= */

:root {
  --font-display: 'Montserrat', sans-serif;
  --font-heading: 'Montserrat', sans-serif;
  --font-sans: 'Inter', sans-serif;
  --color-primary: #1F2933;
  --color-dark: #111827;
  --color-brand: #C62828;
  --color-brand-hover: #A61B1B;
  --color-gold: #B08D57;
  --bg-main: #FFFFFF;
  --bg-section: #F7F7F5;
  --bg-card: #FFFFFF;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: #334155;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Custom Minimal Architectural Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: #F8FAFC;
}

::-webkit-scrollbar-thumb {
  background: #CBD5E1;
  border-radius: 9999px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-brand);
}

/* Navigation Links (Minimal & Red Accent on Hover/Active) */
.nav-link-item {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.65rem;
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: 0.8125rem;
  color: var(--color-primary);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

@media (min-width: 1280px) {
  .nav-link-item {
    padding: 0.5rem 0.85rem;
    font-size: 0.875rem;
  }
}

.nav-link-item::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-brand);
  border-radius: 9999px;
  transform: translateX(-50%);
  transition: width 0.2s ease-in-out, opacity 0.2s ease;
  opacity: 0;
}

.nav-link-item:hover {
  color: var(--color-brand);
  background-color: #F8FAFC;
}

.nav-link-item:hover::after,
.nav-link-item.active-nav::after {
  width: calc(100% - 1.5rem);
  opacity: 1;
}

.nav-link-item.active-nav {
  color: var(--color-brand);
  font-weight: 700;
}

/* Mega Dropdown Glass & Card Structure */
.nav-dropdown-parent {
  position: relative;
}

.nav-dropdown-parent:hover .nav-dropdown-menu {
  display: block;
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

.nav-dropdown-menu {
  display: none;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(8px);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
  background-color: #FFFFFF !important;
  box-shadow: 0 20px 40px -15px rgba(17, 24, 39, 0.15), 0 0 0 1px rgba(226, 232, 240, 0.9);
}

.nav-mega-col {
  background: #FAFAFA;
  border-radius: 1rem;
  padding: 1rem;
  border: 1px solid #F1F5F9;
  transition: all 0.2s ease;
}

.nav-mega-col:hover {
  background: #FFFFFF;
  border-color: #E2E8F0;
}

.nav-mega-card {
  transition: all 0.15s ease;
  border-radius: 0.5rem;
}

.nav-mega-card:hover {
  background: #F8FAFC;
  color: var(--color-brand);
  transform: translateX(3px);
}

/* Button Component Hierarchy */
.btn-primary {
  background-color: var(--color-brand);
  color: #FFFFFF;
  font-weight: 700;
  border-radius: 0.5rem;
  padding: 0.65rem 1.25rem;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-primary:hover {
  background-color: var(--color-brand-hover);
  box-shadow: 0 4px 12px rgba(198, 40, 40, 0.25);
}

.btn-graphite {
  background-color: var(--color-primary);
  color: #FFFFFF;
  font-weight: 700;
  border-radius: 0.5rem;
  padding: 0.65rem 1.25rem;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-graphite:hover {
  background-color: var(--color-dark);
  box-shadow: 0 4px 12px rgba(17, 24, 39, 0.2);
}

.btn-outline-graphite {
  background-color: transparent;
  border: 1.5px solid #CBD5E1;
  color: var(--color-primary);
  font-weight: 600;
  border-radius: 0.5rem;
  padding: 0.65rem 1.25rem;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-outline-graphite:hover {
  border-color: var(--color-brand);
  color: var(--color-brand);
  background-color: #FFF5F5;
}

/* Hero Slider Transitions */
.hero-slide {
  display: none;
  opacity: 0;
  transition: opacity 0.4s ease-in-out;
}

.hero-slide.active {
  display: block;
  opacity: 1;
}

/* Category & Product Cards */
.product-card {
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 30px -10px rgba(0, 0, 0, 0.08);
  border-color: var(--color-brand);
}

.category-card {
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.category-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-brand);
  box-shadow: 0 12px 25px -8px rgba(0, 0, 0, 0.08);
}