/* RESET */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* BASE STYLES */
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height);

  color: var(--color-text);
  background: var(--color-background);

  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

input,
textarea,
select {
  outline: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--color-accent);
}

ul,
ol {
  list-style: none;
}

/* TYPOGRAPHY */
h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--color-text);
  font-weight: var(--font-weight-semibold);
  line-height: 1.2;
}

h1 {
  font-size: var(--font-size-xxl);
}

h2 {
  font-size: var(--font-size-xl);
}

h3 {
  font-size: var(--font-size-lg);
}

p {
  color: var(--color-text-light);
}

/* LAYOUT */
.site-container {
  width: min(calc(100% - 2rem), 1500px);
  margin-inline: auto;
}

/* SITE HEADER */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.site-header .site-container {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-xl);

  min-height: var(--header-height);
  padding-block: var(--space-md);
}

/* SITE BRAND */
.site-brand {
  justify-self: start;
}

.site-brand h2 {
  margin: 0;

  font-size: var(--font-size-xl);
}

.site-brand p {
  margin: 0;

  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}

/* NAVIGATION */
.site-nav {
  flex: 1;
}

.site-nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-xl);

  margin: 0;
  padding: 0;

  list-style: none;
}

.site-nav a {
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
}

.site-nav a:hover {
  color: var(--color-accent-hover);
}

/* SEARCH FORM */
.search-form {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.search-form input {
  width: 18rem;
  padding: 0.75rem 1rem;

  background: var(--color-card);

  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
}

.search-form button {
  padding: 0.75rem 1.25rem;

  background: var(--color-accent);
  color: var(--color-text-inverse);

  border-radius: var(--radius-pill);

  transition: var(--transition);
}

.search-form button:hover {
  background: var(--color-accent-hover);
}

/* PRODUCT BREADCRUMB */
.product-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-xs);

  padding-block: var(--space-sm);

  font-size: var(--font-size-md);
}

.product-breadcrumb a {
  color: var(--color-text-light);
}

.product-breadcrumb a:hover {
  color: var(--color-accent-hover);
}

.product-breadcrumb [aria-current="page"] {
  color: var(--color-text);

  font-weight: var(--font-weight-medium);
}

.breadcrumb-separator {
  display: inline-flex;
  align-items: center;

  color: var(--color-text-light);

  font-size: var(--font-size-xs);
}

/* FOOTER */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.site-footer .site-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);

  padding-block: var(--space-xl);
}

/* FOOTER LINKS */
.footer-links {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.footer-links a {
  font-weight: var(--font-weight-medium);
}

.footer-links a,
.footer-quick-links a {
  color: var(--color-text);

  transition: var(--transition);
}

.footer-links a:hover,
.footer-quick-links a:hover {
  color: var(--color-accent-hover);
}

/* FOOTER WATCH GUIDES */
.footer-quick-links {
  padding-top: var(--space-lg);

  border-top: 1px solid var(--color-border);
}

.footer-quick-links h3 {
  margin: 0 0 var(--space-md);

  font-size: var(--font-size-lg);
  text-align: center;
}

.footer-quick-links-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-sm) var(--space-xl);

  max-width: 900px;
  margin-inline: auto;
}

.footer-quick-links-list a {
  padding-block: var(--space-xs);

  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}

/* FOOTER COPYRIGHT */
.footer-copyright {
  padding-top: var(--space-lg);

  text-align: center;

  border-top: 1px solid var(--color-border);
}

.footer-copyright p {
  margin: 0;

  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}

/* PAGE HERO */
.page-hero {
  padding: var(--space-xxl) 0;

  text-align: center;

  background: var(--color-surface);
}

.page-hero h1 {
  margin: 0 0 var(--space-sm);
}

.page-hero p {
  max-width: 1000px;
  margin: 0 auto;

  font-size: var(--font-size-lg);
}

/* PAGE CONTENT */
.page-content {
  padding: var(--space-xxl) 0;
}

.page-content .site-container {
  max-width: var(--content-width);
}

.page-content h2 {
  margin-bottom: var(--space-md);

  color: var(--color-highlight);
}

.page-content h2:not(:first-child) {
  margin-top: var(--space-xl);
}

.page-content p {
  margin-bottom: var(--space-md);
}

.page-content ul {
  margin: 0 0 var(--space-md) var(--space-lg);
}

.page-content li {
  margin-bottom: var(--space-sm);

  list-style: disc;
}

.page-content a {
  color: var(--color-accent);
  font-weight: var(--font-weight-medium);
}

.page-content a:hover {
  text-decoration: underline;
}

/* CATALOG LAYOUT */
.catalog-layout {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: var(--space-xl);

  align-items: start;

  padding-block: var(--space-xxl);
}

/* WATCH CATALOG */
.watch-catalog {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);

  min-width: 0;
}

/* CATALOG TOOLBAR */
.catalog-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.catalog-toolbar h2 {
  margin: 0;
}

.sort-form {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.sort-form select {
  min-width: 180px;
  padding: 0.6rem 0.8rem;

  background: var(--color-input-background);
}

/* WATCH GRID */
.watch-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-xl);
}

/* WATCH CARD */
.watch-card {
  display: flex;
  flex-direction: column;

  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);

  overflow: hidden;

  transition: var(--transition);

  box-shadow:
    0 8px 20px rgba(0, 0, 0, 0.08),
    0 2px 6px rgba(0, 0, 0, 0.05);
}

.watch-card,
.related-card {
  background: var(--color-card);
}

.watch-card-content,
.related-card-content {
  background: var(--color-card-content);
}

.watch-card h3,
.related-card h3 {
  color: var(--color-brand);
}

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

  box-shadow:
    0 16px 36px rgba(0, 0, 0, 0.14),
    0 6px 12px rgba(0, 0, 0, 0.08);
}

.watch-card-link {
  display: flex;
  flex-direction: column;
  flex: 1;

  color: inherit;
}

.watch-image {
  position: relative;

  width: 100%;
  aspect-ratio: 1;

  display: flex;
  justify-content: center;
  align-items: center;

  flex-shrink: 0;
}

.image-frame {
  padding: var(--space-md);

  background: var(--color-image-background);
  border-bottom: 1px solid var(--color-border);

  overflow: hidden;
}

.watch-image img {
  display: block;
  max-width: 100%;
  max-height: 100%;
}

.watch-price {
  margin-top: var(--space-sm);

  color: var(--color-text);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
}

.watch-unavailable {
  margin-top: var(--space-sm);
  font-size: var(--font-size-sm);
}

.watch-image-badge {
  position: absolute;
  top: var(--space-sm);

  display: inline-flex;
  align-items: center;
  justify-content: center;

  font-size: 1.25rem;

  filter: drop-shadow(0 1px 2px rgba(255, 255, 255, 0.9))
    drop-shadow(0 1px 2px rgba(0, 0, 0, 0.25));

  z-index: 1;
}

.watch-image-badge-featured {
  left: var(--space-sm);

  color: #e9b949;
}

.watch-image-badge-status {
  right: var(--space-sm);
}

.watch-image-badge-owned {
  color: var(--color-success);
}

.watch-image-badge-wishlist {
  color: #d64545;
}

.watch-card h3,
.watch-card h4,
.watch-card p {
  padding-inline: var(--space-md);
}

.watch-card h3 {
  margin-top: var(--space-md);

  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.watch-card h4 {
  margin-top: var(--space-xs);

  font-size: var(--font-size-lg);
}

.watch-card p {
  margin-top: var(--space-sm);

  font-size: var(--font-size-sm);
}

.watch-card button {
  margin: var(--space-md);

  padding: 0.8rem 1rem;

  border-radius: var(--radius-md);

  background: var(--color-accent);
  color: var(--color-text-inverse);

  transition: var(--transition);
}

.watch-card button:hover {
  background: var(--color-accent-hover);
}

/* EMPTY STATE */
.empty-state h2 {
  margin: 0 0 var(--space-xs);

  font-size: 1.25rem;
}

.empty-state p {
  margin: 0;
}

/* BUYING OPTIONS - SHARED */
.retailer-last-checked {
  display: block;

  font-size: var(--font-size-sm);
  font-style: italic;
  color: var(--color-text-light);
}

/* PAGINATION */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.pagination-link {
  display: inline-flex;
  justify-content: center;
  align-items: center;

  min-width: 2.5rem;
  min-height: 2.5rem;

  padding-inline: var(--space-sm);

  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);

  background: var(--color-surface);

  transition: var(--transition);
}

.pagination-link:hover {
  background: var(--color-accent-light);
}

.pagination-link.active {
  background: var(--color-accent);
  color: var(--color-text-inverse);

  border-color: var(--color-accent);
}

/* 404 PAGE */
.error-page {
  padding-block: var(--space-xxl);
}

.error-page .empty-state {
  max-width: var(--content-width);
  margin-inline: auto;
}

.error-page .empty-state h2 {
  margin: 0 0 var(--space-sm);

  font-size: var(--font-size-xl);
}

.error-page .empty-state p {
  margin: 0 0 var(--space-lg);
}

.error-home-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;

  padding: 0.75rem 1.25rem;

  background: var(--color-accent);
  color: var(--color-text-inverse);

  border-radius: var(--radius-md);

  font-weight: var(--font-weight-medium);

  transition: var(--transition);
}

.error-home-link:hover {
  background: var(--color-accent-hover);
}

/* FILTER SIDEBAR */
.filter-sidebar {
  position: sticky;
  top: var(--space-xl);

  align-self: start;

  padding: var(--space-md);

  background: var(--color-surface);

  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);

  box-shadow: var(--shadow-sm);
}

.filter-title {
  margin-bottom: var(--space-lg);
}

.filter-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

/* FILTER GROUP */
.filter-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;

  padding-bottom: var(--space-lg);

  border-bottom: 1px solid var(--color-border);
}

.filter-group:last-child {
  padding-bottom: 0;

  border-bottom: none;
}

.filter-heading {
  margin-bottom: var(--space-xs);

  font-size: var(--font-size-md);
}

.filter-option {
  display: flex;
  align-items: center;
  gap: 0.65rem;

  width: fit-content;

  color: var(--color-text-light);

  cursor: pointer;
}

.filter-toggle {
  text-align: left;
}

.filter-option input[type="checkbox"] {
  width: 1rem;
  height: 1rem;

  flex-shrink: 0;

  accent-color: var(--color-accent);
}

.filter-options .hidden-option {
  display: none;
}

.filter-group.expanded .filter-options .hidden-option {
  display: flex;
}

.filter-option:hover {
  color: var(--color-text);
}

.filter-option input {
  accent-color: var(--color-accent);
}

/* FILTER PRICE INPUT */
.filter-price {
  width: 100%;

  padding: 0.7rem 0.9rem;

  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

/* FILTER ACTIONS */
.filter-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.filter-button,
.clear-filters {
  display: flex;
  justify-content: center;
  align-items: center;

  padding: 0.85rem;

  border-radius: var(--radius-md);

  text-align: center;

  transition: var(--transition);
}

.filter-button {
  background: var(--color-accent);
  color: var(--color-text-inverse);
}

.filter-button:hover {
  background: var(--color-accent-hover);
}

.clear-filters {
  border: 1px solid var(--color-border);
}

.clear-filters:hover {
  background: var(--color-accent-light);
}

/* PRODUCT PAGE */

.product-page {
  display: grid;
  grid-template-columns: minmax(420px, 620px) 1fr;
  gap: 3rem;

  align-items: start;

  margin: 2rem 0 4rem;
}

/* PRODUCT GALLERY */
.product-gallery {
  position: sticky;
  top: 2rem;
}

.gallery-prev,
.gallery-next {
  position: absolute;
  top: 50%;

  width: 2.75rem;
  height: 2.75rem;

  transform: translateY(-50%);

  border: none;
  border-radius: 50%;

  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-sm);

  font-size: 1.25rem;
}

.gallery-prev {
  left: 1rem;
}

.gallery-next {
  right: 1rem;
}

/* PRODUCT DETAILS */
.product-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.product-brand {
  margin: 0;

  color: var(--color-brand);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
}

.product-title {
  margin: 0;
}

.product-statuses {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.product-status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);

  padding: 0.35rem 0.7rem;

  border-radius: var(--radius-pill);

  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  line-height: 1.4;
}

.product-status i {
  font-size: 0.95em;
}

.product-status-featured {
  background: var(--color-featured-bg);
  color: var(--color-text);
}

.product-status-featured i {
  color: var(--color-featured);
}

.product-status-owned {
  background: var(--color-owned-bg);
  color: var(--color-text);
}

.product-status-owned i {
  color: var(--color-success);
}

.product-status-wishlist {
  background: var(--color-wishlist-bg);
  color: var(--color-text);
}

.product-status-wishlist i {
  color: var(--color-wishlist);
}

.product-description,
.product-intro {
  margin: 0;
}

.product-intro {
  color: var(--color-text-light);
}

.product-gender {
  color: var(--color-text-light);
}

/* PRODUCT HIGHLIGHTS */
.top-highlights {
  padding: var(--space-lg);

  background: var(--color-surface);

  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.top-highlights h3 {
  margin: 0 0 var(--space-sm);

  font-size: var(--font-size-lg);
}

.highlight-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-xl);

  padding-block: 0.75rem;

  border-bottom: 1px solid var(--color-border);
}

.highlight-item:last-child {
  border-bottom: 0;
}

.highlight-item span {
  color: var(--color-text-light);
}

.highlight-item strong {
  font-weight: var(--font-weight-semibold);
  text-align: right;
}

/* PRODUCT BUYING OPTIONS */
.buying-options {
  padding: var(--space-lg);

  background: var(--color-surface);

  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.buying-options > h3 {
  margin: 0 0 var(--space-md);

  font-size: var(--font-size-lg);
}

.best-offer {
  margin-bottom: var(--space-lg);
  padding: var(--space-md);

  background: var(--color-card);

  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.best-offer-label {
  display: block;

  margin-bottom: var(--space-sm);

  color: var(--color-text-light);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.best-offer-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.best-offer-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.best-offer-pricing {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.best-offer-price {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
}

.mrp {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}

.discount-badge {
  color: var(--color-success);

  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

.best-offer-button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);

  padding: 0.7rem 1rem;

  background: var(--color-accent);
  color: var(--color-text-inverse);

  border-radius: var(--radius-md);

  font-weight: var(--font-weight-medium);
}

.best-offer-button:hover {
  background: var(--color-accent-hover);
}

.other-retailers h4 {
  margin: 0;

  font-size: var(--font-size-md);
}

.retailer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);

  padding-block: 0.75rem;

  border-top: 1px solid var(--color-border);
}

.retailer-price {
  flex-shrink: 0;

  font-weight: var(--font-weight-medium);
}

.retailer-link {
  color: var(--color-accent-hover);

  font-weight: var(--font-weight-semibold);
  text-decoration: none;

  transition: color var(--transition);
}

.retailer-link:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* PRODUCT COLORS */
.product-colors h3 {
  margin: 0 0 var(--space-md);

  font-size: var(--font-size-lg);
}

.color-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.color-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);

  margin: 0;
  padding: 0.5rem 0.9rem;

  background: var(--color-surface);

  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);

  cursor: pointer;

  transition: var(--transition);
}

.color-item:hover {
  border-color: var(--color-accent);
}

.color-item.active {
  background: var(--color-card);

  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary);
}

.color-circle {
  width: 1rem;
  height: 1rem;

  flex-shrink: 0;

  border: 1px solid rgba(0, 0, 0, 0.15);
  border-radius: 50%;
}

/* RELATED WATCHES */
.related-watches {
  margin-block: var(--space-xxl);
}

.related-watches h2 {
  margin: 0 0 var(--space-lg);

  font-size: var(--font-size-xl);
}

/* RELATED CAROUSEL */
.related-carousel {
  position: relative;

  overflow: hidden;
}

.related-grid {
  display: flex;
  gap: var(--space-lg);

  padding: var(--space-xs);

  overflow-x: auto;

  scroll-behavior: smooth;
  scrollbar-width: none;
}

.related-grid::-webkit-scrollbar {
  display: none;
}

/* RELATED WATCH CARD */
.related-card {
  display: flex;
  flex: 0 0 220px;
  flex-direction: column;

  background: var(--color-card);

  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);

  box-shadow: var(--shadow-sm);

  overflow: hidden;

  color: inherit;

  transition: var(--transition);
}

.related-card:hover {
  transform: translateY(-2px);

  box-shadow: var(--shadow-md);
}

.related-card-content {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: var(--space-xs);

  padding: var(--space-md);

  background: var(--color-card-content);
}

.related-card-title {
  margin: 0;

  color: var(--color-brand);

  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  line-height: 1.4;
}

.related-card-movement {
  margin: 0;

  color: var(--color-text-light);

  font-size: var(--font-size-sm);
}

.related-card-price {
  margin: var(--space-xs) 0 0;

  color: var(--color-text);

  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

/* RELATED CAROUSEL BUTTONS */
.carousel-btn {
  position: absolute;
  top: 50%;

  display: flex;
  align-items: center;
  justify-content: center;

  width: 2.5rem;
  height: 2.5rem;

  transform: translateY(-50%);

  background: var(--color-card);
  color: var(--color-text);

  border: 1px solid var(--color-border);
  border-radius: 50%;

  box-shadow: var(--shadow-sm);

  cursor: pointer;

  transition: var(--transition);

  z-index: 2;
}

.carousel-btn-left {
  left: var(--space-sm);
}

.carousel-btn-right {
  right: var(--space-sm);
}

.carousel-btn:disabled {
  opacity: 0;
  pointer-events: none;
}

.carousel-btn:hover {
  background: var(--color-accent);
  color: var(--color-text-inverse);

  border-color: var(--color-accent);
}

/* PRODUCT WATCH GUIDES */
.product-guides {
  margin-top: var(--space-xxl);
}

.product-guides .site-container {
  padding-block: var(--space-xl);

  border-top: 1px solid var(--color-border);
}

.product-guides-header {
  margin-bottom: var(--space-lg);
}

.product-guides-header h2 {
  margin-bottom: var(--space-xs);

  font-size: var(--font-size-xl);
}

.product-guides-header p {
  font-size: var(--font-size-sm);
}

.quick-links-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-md);

  max-width: 800px;
}

.quick-link-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);

  padding: var(--space-md) var(--space-lg);

  background: var(--color-card);

  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);

  font-weight: var(--font-weight-medium);

  transition: var(--transition);
}

.quick-link-item:hover {
  background: var(--color-accent-light);
  border-color: var(--color-accent);
}

.quick-link-arrow {
  flex-shrink: 0;

  font-size: var(--font-size-lg);
}