/* ==========================================================================
   CRYSTELLE Footwear - Women's Sandals & Footwear Collections Category Page
   Brand: CRYSTELLE (https://www.crystelleuppers.com/)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Great+Vibes&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
  --color-bg-page: #fcfaf7;
  --color-bg-card: #ffffff;
  --color-bg-sidebar-active: #f0e8dc;
  --color-bg-sidebar-hover: #f7f2ea;
  --color-bg-footer: #f7f3ec;
  
  --color-text-primary: #292321;
  --color-text-secondary: #5e544f;
  --color-text-muted: #8e8077;
  --color-kicker: #8c7b72;
  --color-accent-gold: #b38856;
  --color-accent-gold-hover: #9c7342;
  --color-btn-gold: #ba9560;
  --color-btn-gold-hover: #a88350;
  
  --color-border: #ece4d8;
  --color-border-light: #f3ede4;
  --color-border-dark: #ded3c4;
  
  --font-serif: 'Cormorant Garamond', 'Playfair Display', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-script: 'Great Vibes', cursive;
  
  --container-max-width: 1440px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  --shadow-card: 0 4px 20px rgba(41, 35, 33, 0.04);
  --shadow-card-hover: 0 10px 30px rgba(41, 35, 33, 0.08);
  --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  background-color: var(--color-bg-page);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-smooth);
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 40px;
}

/* Accessibility / Screen Reader Only */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   Top Header & Navigation
   ========================================================================== */
.site-header {
  background-color: var(--color-bg-page);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand-logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-decoration: none;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--color-text-primary);
  line-height: 1;
}

.brand-sub {
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: var(--color-text-muted);
  margin-top: 5px;
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  letter-spacing: 0.04em;
  position: relative;
  padding: 8px 0;
  cursor: pointer;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-text-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-accent-gold);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-header-quote {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-text-primary);
  color: #ffffff;
  padding: 10px 22px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: var(--transition-smooth);
}

.btn-header-quote:hover {
  background-color: var(--color-accent-gold);
  transform: translateY(-1px);
}

/* ==========================================================================
   Category Hero Banner (Clean Unified Showcase)
   ========================================================================== */
.category-hero {
  padding: 32px 0 24px;
}

.hero-banner-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: #f7f2eb;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
}

.hero-banner-image {
  width: 100%;
  height: auto;
  display: block;
}

/* ==========================================================================
   Main Product Collection Section
   ========================================================================== */
.product-section {
  padding: 40px 0 70px;
}

.layout-grid {
  display: flex;
  gap: 48px;
  align-items: flex-start;
}

/* Sidebar Navigation */
.category-sidebar {
  width: 290px;
  flex-shrink: 0;
  position: sticky;
  top: 100px;
}

.sidebar-kicker {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-kicker);
  margin-bottom: 12px;
  display: block;
}

.sidebar-title {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 500;
  line-height: 1.15;
  color: var(--color-text-primary);
  margin-bottom: 16px;
}

.sidebar-desc {
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
}

.sidebar-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sidebar-nav-item {
  width: 100%;
}

.sidebar-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--color-text-primary);
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: var(--transition-smooth);
  cursor: pointer;
}

.sidebar-nav-link .nav-arrow {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: transform 0.2s ease;
}

.sidebar-nav-link:hover {
  background-color: var(--color-bg-sidebar-hover);
  border-color: var(--color-border-dark);
  transform: translateX(3px);
}

.sidebar-nav-link:hover .nav-arrow {
  color: var(--color-text-primary);
  transform: translateX(2px);
}

.sidebar-nav-item.active .sidebar-nav-link {
  background-color: var(--color-bg-sidebar-active);
  border-color: var(--color-border-dark);
  font-weight: 600;
  color: var(--color-text-primary);
}

.sidebar-nav-item.active .sidebar-nav-link .nav-arrow {
  color: var(--color-text-primary);
  font-weight: 700;
}

/* Right Main Product Content */
.product-main-content {
  flex: 1;
  min-width: 0;
}

.collection-header {
  margin-bottom: 32px;
}

.collection-kicker {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-kicker);
  margin-bottom: 10px;
  display: block;
}

.collection-title {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 500;
  line-height: 1.2;
  color: var(--color-text-primary);
  margin-bottom: 12px;
  transition: opacity 0.2s ease;
}

.collection-desc {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  max-width: 900px;
  transition: opacity 0.2s ease;
}

/* Product Cards Unified Responsive Grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}

/* Hidden Card state for category filtering */
.product-card.is-hidden {
  display: none !important;
}

/* Product Card - Clean Standardized Structure */
.product-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: var(--transition-smooth);
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-dark);
  box-shadow: var(--shadow-card-hover);
}

.product-image-box {
  width: 100%;
  aspect-ratio: 16 / 10;
  background-color: #f7f3ec;
  overflow: hidden;
  position: relative;
  flex-shrink: 0;
}

.product-image-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 0.5s ease;
}

.product-card:hover .product-image-box img {
  transform: scale(1.03);
}

.product-info {
  padding: 24px 22px 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-card-title {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-text-primary);
  margin-bottom: 8px;
}

.product-card-desc {
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.product-view-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text-primary);
  letter-spacing: 0.02em;
  margin-top: auto; /* Push button to bottom */
  padding-top: 12px;
  transition: var(--transition-smooth);
}

.product-view-link:hover {
  color: var(--color-accent-gold);
  transform: translateX(3px);
}

/* ==========================================================================
   Footer & Contact Section
   ========================================================================== */
.site-footer {
  background-color: var(--color-bg-footer);
  border-top: 1px solid var(--color-border);
  padding: 60px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2.2fr 1.2fr 1.2fr 1.6fr;
  gap: 48px;
  margin-bottom: 56px;
}

/* Column 1: Brand */
.footer-col-brand {
  padding-right: 20px;
}

.footer-brand-title {
  font-family: var(--font-serif);
  font-size: 2.1rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--color-text-primary);
  line-height: 1;
}

.footer-brand-sub {
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: var(--color-text-muted);
  margin-top: 6px;
  margin-bottom: 20px;
  text-transform: uppercase;
  display: block;
}

.footer-brand-desc {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
  max-width: 360px;
}

.social-links {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}

.social-icon-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background-color: #ede5da;
  color: var(--color-text-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  transition: var(--transition-smooth);
}

.social-icon-btn svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.social-icon-btn:hover {
  background-color: var(--color-text-primary);
  color: #ffffff;
  transform: translateY(-2px);
}

.brand-signature {
  font-family: var(--font-script);
  font-size: 1.9rem;
  color: var(--color-text-secondary);
  line-height: 1.2;
}

/* Column 2 & 3: Navigation */
.footer-heading {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 24px;
}

.footer-link-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-link {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  transition: var(--transition-smooth);
}

.footer-link:hover {
  color: var(--color-text-primary);
  transform: translateX(2px);
}

/* Column 4: Contact */
.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
}

.contact-icon-box {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background-color: #ede5da;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-text-primary);
}

.contact-icon-box svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.contact-details {
  display: flex;
  flex-direction: column;
}

.contact-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 2px;
}

.contact-value {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  transition: var(--transition-smooth);
}

.contact-value:hover {
  color: var(--color-accent-gold);
}

.btn-discuss-project {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px 24px;
  background-color: var(--color-btn-gold);
  color: #ffffff;
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  margin-top: 10px;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 14px rgba(184, 145, 91, 0.25);
}

.btn-discuss-project:hover {
  background-color: var(--color-btn-gold-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(184, 145, 91, 0.35);
}

/* Footer Bottom Bar */
.footer-bottom-bar {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.footer-bottom-links {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-bottom-links a:hover {
  color: var(--color-text-primary);
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 1200px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1.4fr;
    gap: 32px;
  }
}

@media (max-width: 992px) {
  .container {
    padding: 0 24px;
  }
  .layout-grid {
    flex-direction: column;
    gap: 36px;
  }
  .category-sidebar {
    width: 100%;
    position: static;
  }
  .sidebar-nav-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
  }
  .sidebar-nav-list {
    grid-template-columns: repeat(2, 1fr);
  }
  .product-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .footer-bottom-bar {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}