/* Base Reset & Variables */
:root {
  --color-primary: #0f172a;
  --color-white: #ffffff;
  --color-gray-100: #f8fafc;
  --color-gray-200: #e2e8f0;
  --color-gray-400: #94a3b8;
  --color-gray-600: #475569;
  --color-overlay: rgba(0, 0, 0, 0.5);
  --luxury-bg: #f5f0eb;
  --luxury-line: #dfd5cb;
  --drawer-width: 420px;
  --transition-speed: 0.4s;
  --transition-ease: cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--color-primary);
  background-color: var(--luxury-bg);
  line-height: 1.5;
  overflow-x: hidden;
}

/* Luxury Geometric Background */
.luxury-bg {
  position: fixed;
  top: -10%;
  left: -10%;
  width: 120%;
  height: 120%;
  z-index: -1;
  background-color: var(--luxury-bg);
  background-image:
    repeating-linear-gradient(
      60deg,
      transparent,
      transparent 49px,
      var(--luxury-line) 49px,
      var(--luxury-line) 50px
    ),
    repeating-linear-gradient(
      120deg,
      transparent,
      transparent 49px,
      var(--luxury-line) 49px,
      var(--luxury-line) 50px
    );
  will-change: transform;
  pointer-events: none;
}

body.drawer-open {
  overflow: hidden;
}

/* Overlay */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-overlay);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-speed) var(--transition-ease),
              visibility var(--transition-speed) var(--transition-ease);
  z-index: 200;
  cursor: pointer;
}

.overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Off-Canvas Navigation Drawer */
.nav-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  max-width: var(--drawer-width);
  background: var(--color-white);
  transform: translateX(-100%);
  transition: transform var(--transition-speed) var(--transition-ease);
  z-index: 300;
  overflow: hidden;
}

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

.nav-drawer-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow-y: auto;
  overscroll-behavior: contain;
}

/* Drawer Header */
.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 32px;
  border-bottom: 1px solid var(--color-gray-200);
  flex-shrink: 0;
}

/* Close Button with LVMH blur + text slide effect */
.close-button {
  display: flex;
  align-items: center;
  gap: 12px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px 16px;
  color: var(--color-primary);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 0;
  transition: border-color 0.6s cubic-bezier(0.69, 0, 0.34, 1),
              background-color 0.6s,
              color 0.6s;
}

.close-button:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.close-button .close-icon {
  width: 20px;
  height: 20px;
  position: relative;
  flex-shrink: 0;
}

.close-button .close-icon svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transition: transform 0.6s cubic-bezier(0.69, 0, 0.34, 1);
}

.close-button .close-icon svg:nth-child(2) {
  transform: translateY(-200%);
}

.close-button:hover .close-icon svg:first-child {
  transform: translateY(200%);
}

.close-button:hover .close-icon svg:nth-child(2) {
  transform: translateY(0);
}

.close-text {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  height: 1.2em;
}

.close-text .label-current,
.close-text .label-hover {
  display: block;
  transition: transform 0.6s cubic-bezier(0.69, 0, 0.34, 1);
}

.close-text .label-hover {
  position: absolute;
  left: 0;
  top: 0;
  transform: translateY(100%);
}

.close-button:hover .close-text .label-current {
  transform: translateY(-100%);
}

.close-button:hover .close-text .label-hover {
  transform: translateY(0);
}

.search-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: none;
  border: 1px solid var(--color-gray-200);
  border-radius: 50%;
  cursor: pointer;
  color: var(--color-primary);
  transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

.search-button:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

/* Navigation */
.drawer-nav {
  flex: 1;
  padding: 32px;
  overflow-y: auto;
}

.nav-list {
  list-style: none;
}

.nav-item {
  margin-bottom: 4px;
}

.nav-item--expandable {
  margin-top: 16px;
  margin-bottom: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--color-gray-200);
}

/* Nav Links with LVMH-style blur + slide text effect */
.nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 16px;
  color: var(--color-primary);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  border: 1px solid rgba(255,255,255,0.1);
  background-color: rgba(0,0,0,0.02);
  transition: border-color 0.6s cubic-bezier(0.69, 0, 0.34, 1),
              background-color 0.6s,
              color 0.6s,
              padding-left 0.6s cubic-bezier(0.69, 0, 0.34, 1);
  margin-bottom: 4px;
}

.nav-link:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
  padding-left: 24px;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: 100% 50%;
  transition: transform 0.6s cubic-bezier(0.69, 0, 0.34, 1);
}

.nav-link:hover::after {
  animation: underlineSlide 1.2s cubic-bezier(0.69, 0, 0.34, 1) forwards;
}

@keyframes underlineSlide {
  0% { transform: scaleX(0); transform-origin: 100% 50%; }
  50% { transform: scaleX(0); transform-origin: 0% 50%; }
  100% { transform: scaleX(1); transform-origin: 0% 50%; }
}

.nav-link .link-text {
  position: relative;
  display: block;
  overflow: hidden;
  flex: 1;
}

.nav-link .link-text span {
  display: block;
  transition: transform 0.6s cubic-bezier(0.69, 0, 0.34, 1);
}

.nav-link .link-text .hover-copy {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  transform: translateY(100%);
  transition: transform 0.6s cubic-bezier(0.69, 0, 0.34, 1);
}

.nav-link:hover .link-text .label-current {
  transform: translateY(-100%);
}

.nav-link:hover .link-text .hover-copy {
  transform: translateY(0);
}

/* Arrow icon hidden text */
.nav-link .arrow-icon {
  flex-shrink: 0;
  margin-left: 16px;
  transition: transform 0.6s cubic-bezier(0.69, 0, 0.34, 1);
  position: relative;
  z-index: 1;
}

.nav-link:hover .arrow-icon {
  transform: translateX(4px);
}

.nav-divider {
  height: 1px;
  background: var(--color-gray-200);
  margin: 16px 0;
}

/* Sub links */
.nav-link--sub {
  font-size: 0.875rem;
  color: var(--color-gray-600);
  background-color: transparent;
  border: none;
  border-bottom: 1px solid transparent;
  padding: 12px 16px;
}

.nav-link--sub:hover {
  color: var(--color-white);
  background-color: var(--color-gray-600);
  border-color: var(--color-gray-600);
  padding-left: 24px;
}

/* Social Links - 4+3 Grid Layout */
.social-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--color-gray-200);
}

.social-links--second {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  color: var(--color-primary);
  border-radius: 50%;
  transition: background-color 0.3s ease, color 0.3s ease, transform 0.3s ease;
}

.social-link svg {
  width: 22px;
  height: 22px;
}

.social-link:hover {
  color: var(--color-white);
  background-color: var(--color-primary);
  transform: scale(1.1);
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-drawer {
    max-width: 100%;
  }

  .drawer-header {
    padding: 20px 24px;
  }

  .drawer-nav {
    padding: 24px;
  }

  .nav-link {
    font-size: 1.125rem;
    padding: 14px 16px;
  }
}

@media (min-width: 1024px) {
  .nav-drawer {
    max-width: 480px;
  }

  .nav-link {
    font-size: 1.125rem;
    padding: 18px 16px;
  }
}

/* Scrollbar Styling */
.nav-drawer-inner::-webkit-scrollbar {
  width: 4px;
}

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

.nav-drawer-inner::-webkit-scrollbar-thumb {
  background: var(--color-gray-400);
  border-radius: 2px;
}

/* Focus States for Accessibility */
.close-button:focus-visible,
.search-button:focus-visible,
.nav-link:focus-visible,
.social-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Animation for drawer items */
.nav-drawer.open .nav-item {
  animation: slideIn 0.4s ease forwards;
  opacity: 0;
}

.nav-drawer.open .nav-item:nth-child(1) { animation-delay: 0.1s; }
.nav-drawer.open .nav-item:nth-child(2) { animation-delay: 0.15s; }
.nav-drawer.open .nav-item:nth-child(3) { animation-delay: 0.2s; }
.nav-drawer.open .nav-item:nth-child(4) { animation-delay: 0.25s; }
.nav-drawer.open .nav-item:nth-child(5) { animation-delay: 0.3s; }
.nav-drawer.open .nav-item:nth-child(6) { animation-delay: 0.35s; }
.nav-drawer.open .nav-item:nth-child(7) { animation-delay: 0.4s; }
.nav-drawer.open .nav-item:nth-child(8) { animation-delay: 0.45s; }
.nav-drawer.open .nav-item:nth-child(9) { animation-delay: 0.5s; }
.nav-drawer.open .nav-item:nth-child(10) { animation-delay: 0.55s; }
.nav-drawer.open .nav-item:nth-child(11) { animation-delay: 0.6s; }

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}