/* =========================================================
   QUDOS — Luxury Fashion E-Commerce
   Ultra-minimalist aesthetic inspired by COS, The Row,
   Fear of God, Acne Studios, and modern Scandinavian design.
   ========================================================= */

/* ——— 1. CSS Variables ——— */
:root {
  --color-white: #FFFFFF;
  --color-ivory: #FAF9F7;
  --color-cream: #F5F4F0;
  --color-light-gray: #F3F3F3;
  --color-border: #E8E8E8;
  --color-text-primary: #1A1A1A;
  --color-text-secondary: #6B6B6B;
  --color-text-muted: #9A9A9A;
  --color-error: #C0392B;
  --color-success: #2E7D32;

  --font-serif: "Cormorant Garamond", "Playfair Display", Georgia, serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
  --spacing-xxl: 6rem;
  --spacing-hero: 8rem;

  --transition-fast: 0.2s ease;
  --transition-medium: 0.35s ease;
  --transition-slow: 0.5s ease;

  --header-height: 4.5rem;
  --container-max: 1440px;
  --container-narrow: 980px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.08);
}

/* ——— 2. Reset & Base ——— */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-sans);
  font-weight: 400;
  color: var(--color-text-primary);
  background-color: var(--color-white);
  line-height: 1.6;
  letter-spacing: 0.01em;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: opacity var(--transition-fast);
  touch-action: manipulation;
}

a:hover {
  opacity: 0.65;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
  touch-action: manipulation;
  min-height: 44px;
  min-width: 44px;
}

input, select, textarea {
  font-family: inherit;
  font-size: 1rem;
  color: inherit;
}

ul, ol {
  list-style: none;
}

/* ——— 3. Typography ——— */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: 0.02em;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 5rem);
}

h2 {
  font-size: clamp(1.75rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.uppercase {
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.75rem;
  font-weight: 500;
}

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

.text-muted {
  color: var(--color-text-muted);
}

/* ——— 4. Layout Utilities ——— */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-narrow {
  max-width: var(--container-narrow);
}

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

.section-ivory {
  background-color: var(--color-ivory);
}

.divider {
  width: 100%;
  height: 1px;
  background-color: var(--color-border);
}

.divider-short {
  width: 3rem;
  margin: 0 auto;
}

/* ——— 5. Header ——— */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  z-index: 1000;
  transition: border-color var(--transition-medium), box-shadow var(--transition-medium);
}

.header.scrolled {
  border-bottom-color: var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--spacing-md);
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1;
}

.logo a:hover {
  opacity: 1;
}

.nav-desktop {
  display: none;
}

.nav-desktop ul {
  display: flex;
  gap: var(--spacing-lg);
}

.nav-desktop a {
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-text-primary);
  position: relative;
}

.nav-desktop a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-text-primary);
  transition: width var(--transition-medium);
}

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

.nav-desktop a:hover {
  opacity: 1;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.cart-icon {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
}

.cart-icon svg {
  width: 1.25rem;
  height: 1.25rem;
  stroke: var(--color-text-primary);
  stroke-width: 1.5;
  fill: none;
}

.cart-count {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 1rem;
  height: 1rem;
  background-color: var(--color-text-primary);
  color: var(--color-white);
  font-size: 0.6rem;
  font-weight: 600;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.8);
  transition: all var(--transition-fast);
}

.cart-count.visible {
  opacity: 1;
  transform: scale(1);
}

.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0.5rem;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 1px;
  background-color: var(--color-text-primary);
  transition: all var(--transition-medium);
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ——— 6. Mobile Navigation ——— */
.mobile-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  height: calc(100vh - var(--header-height));
  background-color: var(--color-white);
  z-index: 999;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: var(--spacing-xl);
}

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

.mobile-nav ul {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
}

.mobile-nav a {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  letter-spacing: 0.06em;
}

/* ——— 7. Hero Section ——— */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: var(--color-ivory);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.2s ease;
}

.hero-bg.active {
  opacity: 1;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(250,249,247,0.3) 0%, rgba(250,249,247,0.6) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 var(--spacing-md);
  max-width: 800px;
}

.hero-content h1 {
  margin-bottom: var(--spacing-md);
  font-weight: 400;
}

.hero-content p {
  font-size: 1.1rem;
  max-width: 500px;
  margin: 0 auto var(--spacing-lg);
  color: var(--color-text-secondary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.5rem;
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  border: 1px solid var(--color-text-primary);
  background-color: var(--color-text-primary);
  color: var(--color-white);
  transition: all var(--transition-medium);
  cursor: pointer;
  min-height: 48px;
  line-height: 1;
}

.btn:hover {
  background-color: transparent;
  color: var(--color-text-primary);
  opacity: 1;
}

.btn-outline {
  background-color: transparent;
  color: var(--color-text-primary);
}

.btn-outline:hover {
  background-color: var(--color-text-primary);
  color: var(--color-white);
}

.btn-large {
  padding: 1.15rem 3.5rem;
  font-size: 0.75rem;
}

.btn-full {
  width: 100%;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ——— 8. Section Headers ——— */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-header h2 {
  margin-bottom: var(--spacing-sm);
}

.section-header p {
  max-width: 500px;
  margin: 0 auto;
}

/* ——— 9. Product Grid ——— */
.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-sm);
}

.product-card {
  position: relative;
  cursor: pointer;
  transition: transform var(--transition-medium);
}

.product-card:hover {
  transform: translateY(-4px);
}

.product-card-image {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background-color: var(--color-light-gray);
}

.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow), opacity var(--transition-slow);
}

.product-card:hover .product-card-image img {
  transform: scale(1.04);
}

.product-card-info {
  padding: var(--spacing-sm) 0;
}

.product-card-name {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--color-text-primary);
  margin-bottom: 0.25rem;
  letter-spacing: 0.02em;
}

.product-card-price {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.02em;
}

/* ——— 10. Featured Collection ——— */
.featured-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xs);
}

.featured-item {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background-color: var(--color-light-gray);
}

.featured-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.featured-item-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--spacing-lg);
  background: linear-gradient(to top, rgba(0,0,0,0.35) 0%, transparent 60%);
  color: var(--color-white);
}

.featured-item-overlay h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.featured-item-overlay span {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  opacity: 0.85;
}

/* ——— 11. Brand Story ——— */
.brand-story {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.brand-story-image {
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background-color: var(--color-light-gray);
}

.brand-story-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand-story-content h2 {
  margin-bottom: var(--spacing-md);
}

.brand-story-content p {
  margin-bottom: var(--spacing-md);
  max-width: 480px;
}

/* ——— 12. Newsletter ——— */
.newsletter {
  text-align: center;
  padding: var(--spacing-xxl) var(--spacing-md);
  background-color: var(--color-ivory);
}

.newsletter h2 {
  margin-bottom: var(--spacing-sm);
}

.newsletter p {
  max-width: 460px;
  margin: 0 auto var(--spacing-lg);
}

.newsletter-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  max-width: 420px;
  margin: 0 auto;
}

.newsletter-form input {
  flex: 1;
  padding: 1rem 1.25rem;
  border: 1px solid var(--color-border);
  background-color: var(--color-white);
  outline: none;
  transition: border-color var(--transition-fast);
}

.newsletter-form input:focus {
  border-color: var(--color-text-primary);
}

.newsletter-form input::placeholder {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* ——— 13. Footer ——— */
.footer {
  padding: var(--spacing-xl) 0 var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

.footer-brand .logo {
  margin-bottom: var(--spacing-sm);
  font-size: 1.5rem;
}

.footer-brand p {
  font-size: 0.85rem;
  max-width: 280px;
}

.footer-links h4 {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--spacing-md);
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-text-primary);
  opacity: 1;
}

.footer-bottom {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  align-items: center;
}

.footer-bottom p {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* ——— 14. Product Detail Page ——— */
.product-detail {
  padding-top: calc(var(--header-height) + var(--spacing-xl));
  padding-bottom: var(--spacing-xxl);
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

.product-gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xs);
}

.gallery-main {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background-color: var(--color-light-gray);
}

.gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-info h1 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  margin-bottom: var(--spacing-xs);
}

.product-meta {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
  letter-spacing: 0.04em;
}

.product-price {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-lg);
  letter-spacing: 0.02em;
}

.product-description {
  margin-bottom: var(--spacing-lg);
  max-width: 480px;
}

.product-description p {
  margin-bottom: var(--spacing-sm);
}

.size-selector {
  margin-bottom: var(--spacing-lg);
}

.size-selector-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.size-selector-label span {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 500;
}

.size-guide-link {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.size-options {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.size-option {
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: all var(--transition-fast);
  background-color: var(--color-white);
  color: var(--color-text-primary);
}

.size-option:hover {
  border-color: var(--color-text-primary);
}

.size-option.selected {
  border-color: var(--color-text-primary);
  background-color: var(--color-text-primary);
  color: var(--color-white);
}

.size-option.disabled {
  opacity: 0.3;
  cursor: not-allowed;
  text-decoration: line-through;
}

.product-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.product-actions .btn {
  padding: 1.15rem;
}

.product-details-list {
  margin-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-lg);
}

.detail-item {
  border-bottom: 1px solid var(--color-border);
}

.detail-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
  cursor: pointer;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
}

.detail-item-header svg {
  width: 1rem;
  height: 1rem;
  stroke: var(--color-text-primary);
  stroke-width: 1.5;
  transition: transform var(--transition-fast);
}

.detail-item.open .detail-item-header svg {
  transform: rotate(45deg);
}

.detail-item-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-medium), padding var(--transition-medium);
}

.detail-item.open .detail-item-body {
  max-height: 300px;
  padding-bottom: var(--spacing-md);
}

.detail-item-body p,
.detail-item-body ul {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.detail-item-body ul {
  list-style: disc;
  padding-left: 1.25rem;
}

.detail-item-body li {
  margin-bottom: 0.25rem;
}

/* ——— 15. Related Products ——— */
.related-products {
  padding: var(--spacing-xxl) 0;
  border-top: 1px solid var(--color-border);
}

.related-products h2 {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

/* ——— 16. Cart Page ——— */
.cart-page {
  padding-top: calc(var(--header-height) + var(--spacing-xl));
  padding-bottom: var(--spacing-xxl);
  min-height: 100vh;
}

.cart-page h1 {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  font-size: clamp(2rem, 4vw, 3rem);
}

.cart-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

.cart-items {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.cart-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: var(--spacing-md);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.cart-item-image {
  width: 100px;
  height: 130px;
  overflow: hidden;
  background-color: var(--color-light-gray);
}

.cart-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cart-item-details {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.cart-item-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--spacing-sm);
}

.cart-item-name {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 400;
  margin-bottom: 0.25rem;
}

.cart-item-variant {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

.cart-item-remove {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-decoration: underline;
  text-underline-offset: 3px;
  white-space: nowrap;
}

.cart-item-remove:hover {
  color: var(--color-text-primary);
}

.cart-item-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--spacing-sm);
}

.quantity-selector {
  display: flex;
  align-items: center;
  border: 1px solid var(--color-border);
}

.quantity-selector button {
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.quantity-selector button:hover {
  color: var(--color-text-primary);
}

.quantity-selector input {
  width: 2.5rem;
  height: 2rem;
  text-align: center;
  border: none;
  font-size: 0.85rem;
  -moz-appearance: textfield;
}

.quantity-selector input::-webkit-outer-spin-button,
.quantity-selector input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.cart-item-price {
  font-family: var(--font-serif);
  font-size: 1.1rem;
}

.cart-summary {
  background-color: var(--color-ivory);
  padding: var(--spacing-lg);
  height: fit-content;
}

.cart-summary h3 {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: var(--spacing-lg);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  padding: var(--spacing-xs) 0;
  font-size: 0.9rem;
}

.summary-row.total {
  border-top: 1px solid var(--color-border);
  margin-top: var(--spacing-sm);
  padding-top: var(--spacing-md);
  font-weight: 500;
  font-size: 1.1rem;
  color: var(--color-text-primary);
}

.summary-row.total span:last-child {
  font-family: var(--font-serif);
  font-size: 1.25rem;
}

.cart-summary .btn {
  margin-top: var(--spacing-lg);
}

.cart-empty {
  text-align: center;
  padding: var(--spacing-xxl) var(--spacing-md);
}

.cart-empty h2 {
  margin-bottom: var(--spacing-sm);
}

.cart-empty p {
  margin-bottom: var(--spacing-lg);
}

/* ——— 17. Login Page ——— */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--header-height) + var(--spacing-xl)) var(--spacing-md) var(--spacing-xl);
  background-color: var(--color-ivory);
}

.login-container {
  width: 100%;
  max-width: 420px;
  background-color: var(--color-white);
  padding: var(--spacing-xl) var(--spacing-lg);
  border: 1px solid var(--color-border);
}

.login-container h1 {
  text-align: center;
  margin-bottom: var(--spacing-xs);
  font-size: 2rem;
}

.login-subtitle {
  text-align: center;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: var(--spacing-xs);
}

.form-group input {
  width: 100%;
  padding: 0.9rem 1rem;
  border: 1px solid var(--color-border);
  background-color: var(--color-white);
  outline: none;
  transition: border-color var(--transition-fast);
  font-size: 0.95rem;
}

.form-group input:focus {
  border-color: var(--color-text-primary);
}

.form-group input::placeholder {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.form-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.remember-me {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  cursor: pointer;
}

.remember-me input {
  width: 1rem;
  height: 1rem;
  accent-color: var(--color-text-primary);
}

.forgot-password {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.login-divider {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin: var(--spacing-lg) 0;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.login-divider::before,
.login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background-color: var(--color-border);
}

.login-footer {
  text-align: center;
  margin-top: var(--spacing-lg);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.login-footer a {
  text-decoration: underline;
  text-underline-offset: 3px;
  color: var(--color-text-primary);
  font-weight: 500;
}

/* ——— 18. Toast Notification ——— */
.toast {
  position: fixed;
  bottom: var(--spacing-lg);
  left: 50%;
  transform: translateX(-50%) translateY(120px);
  background-color: var(--color-text-primary);
  color: var(--color-white);
  padding: 1rem 2rem;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  z-index: 2000;
  opacity: 0;
  transition: all var(--transition-medium);
  white-space: nowrap;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ——— 19. Responsive ——— */
@media (min-width: 640px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
  }

  .featured-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .newsletter-form {
    flex-direction: row;
  }

  .newsletter-form .btn {
    white-space: nowrap;
  }

  .cart-item {
    grid-template-columns: 140px 1fr;
    gap: var(--spacing-lg);
  }

  .cart-item-image {
    width: 140px;
    height: 180px;
  }
}

@media (min-width: 768px) {
  :root {
    --header-height: 5rem;
  }

  .nav-desktop {
    display: block;
  }

  .menu-toggle {
    display: none;
  }

  .header-inner {
    padding: 0 var(--spacing-xl);
  }

  .hero-content p {
    font-size: 1.2rem;
  }

  .brand-story {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
  }

  .product-detail-grid {
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-xxl);
  }

  .gallery-main {
    aspect-ratio: 3 / 4;
  }

  .cart-grid {
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-xxl);
  }

  .footer-inner {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }

  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

@media (min-width: 1024px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
  }

  .featured-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .product-card-info {
    padding: var(--spacing-md) 0;
  }
}

@media (min-width: 1280px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
  }
}

/* ——— 22. Contact Page ——— */
.contact-hero {
  padding-top: calc(var(--header-height) + var(--spacing-xxl));
  padding-bottom: var(--spacing-xl);
  text-align: center;
  background-color: var(--color-white);
}

.contact-hero h1 {
  max-width: 700px;
  margin: var(--spacing-sm) auto var(--spacing-md);
}

.contact-hero p {
  max-width: 520px;
  margin: 0 auto;
  font-size: 1.05rem;
}

.contact-info-section {
  padding-bottom: var(--spacing-xxl);
  background-color: var(--color-white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.contact-card {
  padding: var(--spacing-lg);
  border: 1px solid var(--color-border);
  background-color: var(--color-white);
  transition: border-color var(--transition-medium), box-shadow var(--transition-medium);
}

.contact-card:hover {
  border-color: var(--color-text-muted);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
}

.contact-label {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-muted);
}

.contact-value {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text-primary);
}

.contact-value a {
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
  text-decoration-color: var(--color-border);
  transition: text-decoration-color var(--transition-fast);
}

.contact-value a:hover {
  opacity: 1;
  text-decoration-color: var(--color-text-primary);
}

.contact-note {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

.contact-form-section {
  padding: var(--spacing-xxl) 0;
}

.contact-form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  align-items: start;
}

.contact-form-content h2 {
  margin-bottom: var(--spacing-sm);
}

.contact-form-content > p {
  margin-bottom: var(--spacing-xl);
  max-width: 480px;
}

.contact-form .form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.contact-form textarea {
  width: 100%;
  padding: 0.9rem 1rem;
  border: 1px solid var(--color-border);
  background-color: var(--color-white);
  outline: none;
  transition: border-color var(--transition-fast);
  font-size: 0.95rem;
  resize: vertical;
  line-height: 1.6;
}

.contact-form textarea:focus {
  border-color: var(--color-text-primary);
}

.contact-form textarea::placeholder {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.contact-image {
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background-color: var(--color-light-gray);
}

.contact-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.faq-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  text-align: left;
  margin-top: var(--spacing-xl);
}

.faq-item {
  padding: var(--spacing-lg);
  border: 1px solid var(--color-border);
}

.faq-item h4 {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: var(--spacing-sm);
}

.faq-item p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

@media (min-width: 640px) {
  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-form .form-row {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 768px) {
  .contact-form-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
  }

  .faq-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ——— 23. Accessibility ——— */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-text-primary);
  color: var(--color-white);
  padding: 8px 16px;
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  z-index: 10000;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 0;
}

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

:focus-visible {
  outline: 2px solid var(--color-text-primary);
  outline-offset: 2px;
}

a:focus-visible,
button:focus-visible {
  opacity: 1;
}

/* ——— 24. Trust Bar ——— */
.trust-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-sm);
  background-color: var(--color-ivory);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.trust-item svg {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

.trust-item svg,
.trust-item svg path,
.trust-item svg circle {
  stroke: var(--color-text-secondary);
  stroke-width: 1.5;
  fill: none;
}

/* ——— 25. Scroll Animations ——— */
.js .fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.js .fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }

/* ——— 26. Policy Disclaimer ——— */
.policy-disclaimer {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  text-align: center;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-ivory);
  border-top: 1px solid var(--color-border);
}

/* ——— 20. Reduced Motion ——— */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}

/* ——— 21. Print ——— */
@media print {
  .header,
  .footer,
  .btn,
  .mobile-nav {
    display: none !important;
  }

  body {
    color: #000;
    background: #fff;
  }
}