/*=========================================
  LUMAVÈRE | LUXURY SKINCARE STYLES
=========================================*/

:root {
  --color-primary: #0F3024;    /* Emerald Dark Green */
  --color-primary-light: #184A38;
  --color-accent: #CFA461;     /* Warm Gold */
  --color-accent-hover: #b89154;
  --color-bg-light: #F9F9F8;   /* Soft Grey / Cream */
  --color-bg-dark: #0A1C15;    /* Deep Forest Black */
  --color-text-dark: #1A1A1A;
  --color-text-light: #FFFFFF;
  --color-text-grey: #666666;
  --color-border: #E0E0E0;
  
  --font-serif: 'Playfair Display', serif;
  --font-sans: 'Inter', sans-serif;

  --transition-smooth: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.3s ease;
  
  --spacing-section: 120px;
}

/* Reset & BaseStyles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text-dark);
  background-color: var(--color-bg-light);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.2;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

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

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 5%;
}

.segment {
  padding: var(--spacing-section) 0;
}

.dark-bg {
  background-color: var(--color-bg-dark);
  color: var(--color-text-light);
}

/* Typography Classes */
.section-title {
  font-size: 3rem;
  margin-bottom: 20px;
}
.section-subtitle {
  font-size: 1.2rem;
  color: var(--color-accent);
  margin-bottom: 60px;
  font-weight: 300;
  letter-spacing: 1px;
}

/* Buttons */
button {
  cursor: pointer;
  border: none;
  background: transparent;
  font-family: var(--font-sans);
}

.btn {
  display: inline-block;
  padding: 16px 32px;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  transition: var(--transition-fast);
}

.primary-btn {
  background-color: var(--color-text-light);
  color: var(--color-bg-dark);
  border: 1px solid transparent;
}
.primary-btn:hover {
  background-color: transparent;
  color: var(--color-text-light);
  border: 1px solid var(--color-text-light);
}

.primary-btn.dark {
  background-color: var(--color-primary);
  color: var(--color-text-light);
}

.primary-btn.dark:hover {
  background-color: var(--color-primary-light);
  border-color: transparent;
}

.link-btn {
  display: inline-block;
  margin-top: 30px;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-bottom: 1px solid var(--color-text-dark);
  padding-bottom: 4px;
  transition: var(--transition-fast);
}
.link-btn:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/*=========================================
  NAVIGATION
=========================================*/
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 5%;
  z-index: 1000;
  transition: var(--transition-fast);
  color: var(--color-text-light);
}

.navbar.scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  color: var(--color-bg-dark);
  padding: 16px 5%;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.nav-left, .nav-right {
  flex: 1;
}

.nav-right {
  text-align: right;
}

.nav-center {
  flex: 2;
  text-align: center;
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 500;
  letter-spacing: 4px;
}

.menu-btn, .cart-btn {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: inherit;
  transition: color 0.3s ease;
}

.menu-btn:hover, .cart-btn:hover {
  color: var(--color-accent);
}

/* Mobile Menu */
.menu-sidebar {
  position: fixed;
  top: 0;
  left: -400px;
  width: 100%;
  max-width: 400px;
  height: 100vh;
  background-color: var(--color-bg-dark);
  color: var(--color-text-light);
  z-index: 1100;
  padding: 80px 40px;
  transition: var(--transition-smooth);
}
.menu-sidebar.open {
  left: 0;
}
.menu-links li {
  margin-bottom: 30px;
}
.menu-links a {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  transition: var(--transition-fast);
}
.menu-links a:hover {
  color: var(--color-accent);
  padding-left: 10px;
}

.close-btn {
  position: absolute;
  top: 30px;
  right: 30px;
  font-size: 2rem;
  color: inherit;
}

/*=========================================
  CART SIDEBAR
=========================================*/
.cart-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: rgba(0,0,0,0.5);
  backdrop-filter: blur(3px);
  z-index: 1050;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-fast);
}
.cart-overlay.open {
  opacity: 1;
  visibility: visible;
}

.cart-sidebar {
  position: fixed;
  top: 0;
  right: -500px;
  width: 100%;
  max-width: 480px;
  height: 100vh;
  background-color: var(--color-bg-light);
  z-index: 1100;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
  box-shadow: -10px 0 30px rgba(0,0,0,0.1);
}
.cart-sidebar.open {
  right: 0;
}

.cart-header {
  padding: 30px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.cart-header h3 {
  font-size: 1.5rem;
}

.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: 30px;
}

.empty-cart-msg {
  text-align: center;
  color: var(--color-text-grey);
  margin-top: 50px;
}

.cart-item {
  display: flex;
  align-items: center;
  margin-bottom: 30px;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--color-border);
}
.cart-item img {
  width: 80px;
  height: auto;
  object-fit: cover;
  margin-right: 20px;
}
.cart-item-details {
  flex: 1;
}
.cart-item-details h4 {
  font-family: var(--font-sans);
  font-size: 1rem;
  margin-bottom: 5px;
}
.cart-item-price {
  color: var(--color-text-grey);
  font-size: 0.9rem;
}
.remove-item {
  font-size: 0.8rem;
  color: var(--color-text-grey);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 10px;
  border-bottom: 1px solid var(--color-text-grey);
}
.remove-item:hover {
  color: #d11a2a;
}

.qty-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}
.qty-btn {
  width: 24px;
  height: 24px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.cart-footer {
  padding: 30px;
  border-top: 1px solid var(--color-border);
  background-color: #fff;
}
.subtotal {
  display: flex;
  justify-content: space-between;
  font-size: 1.2rem;
  font-family: var(--font-serif);
  margin-bottom: 10px;
}
.shipping-note {
  font-size: 0.8rem;
  color: var(--color-text-grey);
  margin-bottom: 20px;
  text-align: center;
}
.checkout-btn {
  width: 100%;
  background-color: var(--color-bg-dark);
  color: var(--color-bg-light);
  padding: 18px;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  transition: background 0.3s ease;
}
.checkout-btn:hover {
  background-color: var(--color-primary);
}

/*=========================================
  HERO SECTION
=========================================*/
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--color-text-light);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero-img {
  width: 100%;
  height: 110%;
  object-fit: cover;
  object-position: center;
  transform: translateY(0); /* Parallax controlled by JS */
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.1) 50%, rgba(10, 28, 21, 0.6) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: 0 20px;
}

.hero-title {
  font-size: clamp(3rem, 6vw, 5.5rem);
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  margin-bottom: 40px;
  font-weight: 300;
  letter-spacing: 1px;
}

/*=========================================
  PHILOSOPHY SECTION
=========================================*/
.split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.image-box {
  overflow: hidden;
  border-radius: 4px;
}

.image-box img {
  width: 100%;
  height: auto;
  transition: transform 1.5s ease;
}
.image-box:hover img {
  transform: scale(1.05);
}

.text-box .section-title {
  margin-bottom: 30px;
}
.text-box .section-text {
  color: var(--color-text-grey);
  margin-bottom: 20px;
  font-size: 1.05rem;
}

/*=========================================
  COLLECTION GRID
=========================================*/
.collection .container {
  text-align: center;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
  margin-top: 60px;
}

.product-card {
  text-align: center;
}

.product-img-wrapper {
  position: relative;
  overflow: hidden;
  margin-bottom: 24px;
  background-color: var(--color-bg-light); /* To offset the dark section bg slightly if transparent images used */
  aspect-ratio: 4/5;
}

.product-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.hover-overlay {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(15, 48, 36, 0.4);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-fast);
}

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

.product-card:hover .hover-overlay {
  opacity: 1;
}

.add-to-cart-btn {
  background-color: var(--color-text-light);
  color: var(--color-bg-dark);
  padding: 15px 30px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 2px;
  transform: translateY(20px);
  transition: var(--transition-fast);
}
.add-to-cart-btn:hover {
  background-color: var(--color-accent);
  color: var(--color-text-light);
}

.product-card:hover .add-to-cart-btn {
  transform: translateY(0);
}

.product-name {
  font-family: var(--font-sans);
  font-size: 1.1rem;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.product-price {
  color: var(--color-accent);
  font-size: 0.95rem;
}

/*=========================================
  EDITORIAL BANNER
=========================================*/
.parallax-banner {
  position: relative;
  height: 70vh;
  min-height: 500px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.parallax-bg-img {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 120%;
  object-fit: cover;
  z-index: -1;
}

.banner-overlay {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
}

.banner-content {
  color: var(--color-text-light);
  max-width: 700px;
  padding: 0 20px;
}

.banner-title {
  font-size: 3.5rem;
  margin-bottom: 20px;
}
.banner-subtitle {
  font-size: 1.1rem;
}

/*=========================================
  INGREDIENTS
=========================================*/
.ingredients {
  background-color: var(--color-bg-light);
}
.ingredient-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 60px;
  text-align: center;
}
.ing-number {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  color: var(--color-accent);
  opacity: 0.5;
  display: block;
  margin-bottom: 15px;
}
.ing-title {
  font-size: 1.3rem;
  margin-bottom: 10px;
}
.ing-desc {
  color: var(--color-text-grey);
  font-size: 0.95rem;
}

/*=========================================
  NEWSLETTER
=========================================*/
.newsletter {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  text-align: center;
}
.form-container h2 {
  font-size: 2.5rem;
  margin-bottom: 15px;
}
.form-container p {
  color: #ccc;
  margin-bottom: 40px;
}
.subscribe-form {
  display: flex;
  justify-content: center;
  max-width: 500px;
  margin: 0 auto;
}
.subscribe-form input {
  flex: 1;
  padding: 16px 20px;
  border: 1px solid rgba(255,255,255,0.3);
  background: transparent;
  color: var(--color-text-light);
  font-size: 1rem;
}
.subscribe-form input::placeholder {
  color: rgba(255,255,255,0.6);
}
.subscribe-form input:focus {
  outline: none;
  border-color: var(--color-accent);
}
.form-success {
  margin-top: 20px;
  color: var(--color-accent);
  font-family: var(--font-serif);
  font-style: italic;
}

/*=========================================
  FOOTER
=========================================*/
.footer {
  background-color: var(--color-bg-dark);
  color: var(--color-bg-light);
  padding-top: 80px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}
.footer-logo {
  font-size: 1.5rem;
  letter-spacing: 3px;
  margin-bottom: 15px;
}
.footer-brand p {
  color: #999;
}
.footer h4 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 25px;
}
.footer ul li {
  margin-bottom: 15px;
}
.footer ul a {
  color: #aaa;
  transition: color 0.3s ease;
}
.footer ul a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 24px 5%;
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: #666;
}
.credit {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--color-accent);
}

/*=========================================
  TOAST NOTIFICATION
=========================================*/
.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background-color: var(--color-bg-dark);
  color: var(--color-text-light);
  padding: 16px 24px;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  transform: translateY(100px);
  opacity: 0;
  transition: var(--transition-fast);
  z-index: 2000;
  box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}
.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/*=========================================
  ANIMATIONS & REVEALS
=========================================*/
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 1s ease, transform 1s ease;
}
.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: all 1s ease;
}
.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: all 1s ease;
}
.reveal-left.is-visible, .reveal-right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }

/*=========================================
  RESPONSIVE
=========================================*/
@media (max-width: 992px) {
  .split-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }
  .subscribe-form {
    flex-direction: column;
  }
  .navbar {
    padding: 16px 5%;
  }
  .cart-sidebar {
    max-width: 100%;
  }
}