/* ============================================
   OASA The Label — Custom Styles
   Brand overrides and Tailwind CDN fallbacks
   ============================================ */

/* ----- CSS Custom Properties (Brand Palette) ----- */
:root {
  --color-beige: #F5F0EB;
  --color-cream: #FFFDF7;
  --color-charcoal: #1A1A1A;
  --color-white: #FFFFFF;

  --font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-body: 1.6;
  --line-height-heading: 1.2;

  --spacing-section: 6rem;
  --spacing-section-mobile: 3rem;
  --spacing-content: 2rem;

  --transition-base: 200ms ease;
}

/* ----- Base Typography ----- */
body {
  font-family: var(--font-family);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-body);
  color: var(--color-charcoal);
  background-color: var(--color-cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-heading);
  color: var(--color-charcoal);
}

/* ----- Tailwind CDN Fallback Layout ----- */
/* These rules ensure the site remains usable if the Tailwind CDN fails to load */

.fallback-container {
  max-width: 80rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

.fallback-flex {
  display: flex;
}

.fallback-flex-col {
  display: flex;
  flex-direction: column;
}

.fallback-grid {
  display: grid;
  gap: 1.5rem;
}

.fallback-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.fallback-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.fallback-hidden {
  display: none;
}

/* ----- Section Spacing ----- */
.section-spacing {
  padding-top: var(--spacing-section-mobile);
  padding-bottom: var(--spacing-section-mobile);
}

@media (min-width: 768px) {
  .section-spacing {
    padding-top: var(--spacing-section);
    padding-bottom: var(--spacing-section);
  }
}

.section-spacing-sm {
  padding-top: calc(var(--spacing-section-mobile) / 2);
  padding-bottom: calc(var(--spacing-section-mobile) / 2);
}

@media (min-width: 768px) {
  .section-spacing-sm {
    padding-top: calc(var(--spacing-section) / 2);
    padding-bottom: calc(var(--spacing-section) / 2);
  }
}

/* ----- Nav: allow logo to overflow nav height ----- */
#main-nav {
  overflow: visible;
}

/* ----- Nav: Default state is dark (for light-background pages) ----- */
#main-nav .nav-link,
#main-nav .hamburger-btn {
  color: var(--color-charcoal);
  transition: color 0.3s ease;
}

#main-nav img {
  filter: none;
  transition: filter 0.3s ease;
}

#main-nav svg {
  stroke: var(--color-charcoal);
  transition: stroke 0.3s ease;
}

/* ----- Nav Hero Page: White text at top (over dark hero — HOME only) ----- */
#main-nav.nav-hero-page:not(.nav-scrolled) .nav-link,
#main-nav.nav-hero-page:not(.nav-scrolled) .hamburger-btn {
  color: white;
}

#main-nav.nav-hero-page:not(.nav-scrolled) img {
  filter: brightness(0) invert(1);
}

#main-nav.nav-hero-page:not(.nav-scrolled) svg {
  stroke: white;
}

/* ----- Nav scrolled state (glass background — applies on ALL pages) ----- */
#main-nav.nav-scrolled .nav-link,
#main-nav.nav-scrolled .hamburger-btn {
  color: var(--color-charcoal);
}

#main-nav.nav-scrolled img {
  filter: none;
}

#main-nav.nav-scrolled svg {
  stroke: var(--color-charcoal);
}

/* ----- Nav Liquid Glass Effect (on scroll) ----- */
nav.nav-scrolled {
  background: rgba(255, 253, 247, 0.7);
  backdrop-filter: blur(24px) saturate(200%);
  -webkit-backdrop-filter: blur(24px) saturate(200%);
  border-bottom-color: rgba(245, 240, 235, 0.5);
  box-shadow: 0 8px 32px rgba(26, 26, 26, 0.06), 0 2px 4px rgba(26, 26, 26, 0.03);
}

/* ----- Navigation Link Styles ----- */
.nav-link {
  position: relative;
  display: inline-block;
  padding: 0.5rem 0;
  font-size: 0.875rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-charcoal);
  text-decoration: none;
  letter-spacing: 0.025em;
  transition: color var(--transition-base);
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-charcoal);
  transition: width var(--transition-base);
}

.nav-link:hover {
  color: var(--color-charcoal);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link.active {
  font-weight: var(--font-weight-semibold);
}

.nav-link.active::after {
  width: 100%;
}

/* ----- Utility Classes ----- */
.text-brand-charcoal {
  color: var(--color-charcoal);
}

.text-brand-muted {
  color: rgba(26, 26, 26, 0.7);
}

.bg-brand-cream {
  background-color: var(--color-cream);
}

.bg-brand-beige {
  background-color: var(--color-beige);
}

.bg-brand-charcoal {
  background-color: var(--color-charcoal);
}

/* ----- Minimal Transitions (Req 12.5 — no excessive animation) ----- */
.transition-subtle {
  transition: all var(--transition-base);
}

.hover-scale {
  transition: transform 300ms ease;
}

.hover-scale:hover {
  transform: scale(1.03);
}

/* ----- Responsive Fallback Media Queries ----- */
@media (max-width: 767px) {
  .fallback-grid-2,
  .fallback-grid-3 {
    grid-template-columns: 1fr;
  }

  .desktop-only {
    display: none;
  }

  .mobile-full-width {
    width: 100%;
  }
}

@media (min-width: 768px) {
  .mobile-only {
    display: none;
  }

  .fallback-container {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .fallback-container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

/* ----- Product Card Fallback ----- */
.product-card {
  background-color: var(--color-white);
  border-radius: 0.5rem;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

/* ----- Order Button Fallback ----- */
.order-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background-color: var(--color-charcoal);
  color: var(--color-white);
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  transition: background-color var(--transition-base);
}

.order-btn:hover {
  background-color: rgba(26, 26, 26, 0.9);
}

/* ----- FAQ Accordion Fallback ----- */
.faq-item {
  border-bottom: 1px solid var(--color-beige);
}

.faq-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
}

.faq-answer {
  padding-bottom: 1.25rem;
  color: rgba(26, 26, 26, 0.7);
}

/* ----- Gallery Grid Fallback ----- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

@media (min-width: 768px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }
}

@media (min-width: 1024px) {
  .gallery-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
  }
}

.gallery-item {
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: 0.5rem;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 300ms ease;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

/* ----- Lightbox Fallback ----- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: none;
  align-items: center;
  justify-content: center;
  background-color: rgba(26, 26, 26, 0.95);
}

.lightbox.active {
  display: flex;
}

.lightbox img {
  max-height: 90vh;
  max-width: 90vw;
  object-fit: contain;
}

/* ----- Mobile Menu — Dior-style sliding panel (all screens) ----- */
#mobile-menu {
  transform: translateY(-20px) scale(0.98);
  opacity: 0;
  transition: transform 0.4s cubic-bezier(0.25, 0.1, 0.25, 1), opacity 0.4s ease;
  will-change: transform, opacity;
}

#mobile-menu.menu-open {
  transform: translateY(0) scale(1);
  opacity: 1;
}

#mobile-menu-backdrop {
  opacity: 0;
  backdrop-filter: blur(0px);
  -webkit-backdrop-filter: blur(0px);
  transition: opacity 0.45s ease, backdrop-filter 0.45s ease, -webkit-backdrop-filter 0.45s ease;
  pointer-events: none;
}

#mobile-menu-backdrop.backdrop-visible {
  opacity: 1;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  pointer-events: auto;
}

/* Hide nav bar when menu is open */
#main-nav.nav-hidden {
  opacity: 0 !important;
  pointer-events: none !important;
  transition: opacity 0.25s ease !important;
}

#main-nav {
  transition: opacity 0.25s ease, background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

/* Persistent hamburger inherits nav color on hero page */
#persistent-hamburger .hamburger-lines span {
  background: var(--color-charcoal);
  transition: transform 0.25s ease, opacity 0.2s ease, background 0.3s ease;
}

/* On hero page when not scrolled, hamburger is white */
body:has(.nav-hero-page:not(.nav-scrolled)) #persistent-hamburger .hamburger-lines span {
  background: white;
}

/* When menu/search is open, force hamburger to charcoal */
body:has(.nav-hidden) #persistent-hamburger .hamburger-lines span {
  background: var(--color-charcoal) !important;
}
#persistent-hamburger {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 10002;
  height: 3rem;
  display: flex;
  align-items: center;
  padding-left: 1.25rem;
  padding-top: 0.85rem;
}

#persistent-hamburger .hamburger-lines {
  width: 18px;
  height: 18px;
  gap: 5px;
}

#persistent-hamburger .hamburger-lines.menu-active span:first-child {
  transform: translateY(3.25px) rotate(45deg);
}

#persistent-hamburger .hamburger-lines.menu-active span:last-child {
  transform: translateY(-3.25px) rotate(-45deg);
}

#persistent-hamburger .hamburger-lines.menu-collapsed span:first-child {
  transform: translateY(3.25px);
}

#persistent-hamburger .hamburger-lines.menu-collapsed span:last-child {
  transform: translateY(-3.25px);
}

@media (min-width: 640px) {
  #persistent-hamburger {
    top: 0.75rem;
    left: 1.25rem;
  }
}

@media (min-width: 768px) {
  #persistent-hamburger {
    height: 3.5rem;
  }
}

/* Menu nav link with chevron */
.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(26, 26, 26, 0.06);
  color: var(--color-charcoal);
  font-size: 0.9rem;
  font-weight: var(--font-weight-normal);
  letter-spacing: 0.01em;
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.mobile-nav-link:last-child {
  border-bottom: none;
}

.mobile-nav-link:active {
  opacity: 0.5;
}

.mobile-nav-link::after {
  display: none;
}

.mobile-nav-link .chevron {
  color: rgba(26, 26, 26, 0.25);
  font-size: 1.2rem;
  font-weight: 300;
}

/* ----- Hamburger Icon Animation (Dior-style: 2 lines → 1 line → X) ----- */
.hamburger-lines {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 22px;
  height: 22px;
}

.hamburger-lines.hamburger-sm {
  width: 16px;
  height: 16px;
  gap: 5px;
}

.hamburger-lines span {
  display: block;
  height: 1.5px;
  width: 100%;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
  transform-origin: center;
}

/* Collapsed state: both lines merge to center (one line) */
.hamburger-lines.menu-collapsed span:first-child {
  transform: translateY(3.75px);
}

.hamburger-lines.menu-collapsed span:last-child {
  transform: translateY(-3.75px);
}

.hamburger-lines.hamburger-sm.menu-collapsed span:first-child {
  transform: translateY(3.25px);
}

.hamburger-lines.hamburger-sm.menu-collapsed span:last-child {
  transform: translateY(-3.25px);
}

/* X state: rotated from collapsed */
.hamburger-lines.menu-active span:first-child {
  transform: translateY(3.75px) rotate(45deg);
}

.hamburger-lines.menu-active span:last-child {
  transform: translateY(-3.75px) rotate(-45deg);
}

.hamburger-lines.hamburger-sm.menu-active span:first-child {
  transform: translateY(3.25px) rotate(45deg);
}

.hamburger-lines.hamburger-sm.menu-active span:last-child {
  transform: translateY(-3.25px) rotate(-45deg);
}

/* ----- Search Panel — Dior-style right floating panel ----- */
#search-panel-backdrop {
  opacity: 0;
  backdrop-filter: blur(0px);
  -webkit-backdrop-filter: blur(0px);
  transition: opacity 0.45s ease, backdrop-filter 0.45s ease, -webkit-backdrop-filter 0.45s ease;
  pointer-events: none;
}

#search-panel-backdrop.backdrop-visible {
  opacity: 1;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  pointer-events: auto;
}

#search-panel {
  transform: translateY(-20px) scale(0.98);
  opacity: 0;
  transition: transform 0.4s cubic-bezier(0.25, 0.1, 0.25, 1), opacity 0.4s ease;
  will-change: transform, opacity;
}

#search-panel.search-open {
  transform: translateY(0) scale(1);
  opacity: 1;
}

/* Mobile: full-width with small margin */
@media (max-width: 639px) {
  #search-panel {
    width: calc(100vw - 1.5rem) !important;
    right: 0.75rem !important;
    left: auto !important;
    top: 0.75rem !important;
  }
  #mobile-menu {
    width: calc(100vw - 1.5rem) !important;
    left: 0.75rem !important;
    top: 0.75rem !important;
  }
}

/* ----- Image Unmask Animation ----- */
.img-unmask {
  clip-path: inset(100% 0 0 0);
  will-change: clip-path;
  opacity: 1 !important;
  transform: none !important;
}

.img-unmask.unmasked {
  clip-path: inset(0 0 0 0);
}