/* Base Styles and Reset */
:root {
  --primary-color: #2c3e50;
  --secondary-color: #3498db;
  --accent-color: #e74c3c;
  --light-color: #ecf0f1;
  --dark-color: #2c3e50;
  --text-color: #333;
  --background-color: #fff;
  --card-background: #f9f9f9;
  --border-color: #ddd;
  --shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
  --border-radius: 5px;
  --container-width: 1200px;
  --gallery-event-color: #3498db;
  --auction-event-color: #e74c3c;
  --focus-outline: 2px solid #3498db;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background-color);
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
  position: relative;
  padding-bottom: 0.5rem;
}

h2::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 50px;
  height: 3px;
  background-color: var(--secondary-color);
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.2rem;
}

h5 {
  font-size: 1.1rem;
}

p {
  margin-bottom: 1rem;
}

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

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

a:focus {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

button:focus, input:focus, select:focus, textarea:focus {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

ul, ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--border-radius);
}

/* Header Styles */
header {
  background-color: var(--primary-color);
  color: white;
  padding: 2rem 0;
  text-align: center;
  position: relative;
}

header h1 {
  color: white;
  margin-bottom: 0.5rem;
}

.tagline {
  font-size: 1.2rem;
  font-style: italic;
}

/* Navigation Styles */
#main-nav {
  background-color: white;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

#nav-links {
  display: flex;
  list-style: none;
  padding: 0;
  margin: 0;
}

#nav-links li {
  margin: 0;
  padding: 0;
}

#nav-links a {
  display: block;
  padding: 1rem 1.5rem;
  color: var(--primary-color);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
}

#nav-links a:hover {
  background-color: var(--light-color);
}

#menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 1rem;
}

.bar {
  display: block;
  width: 25px;
  height: 3px;
  margin: 5px auto;
  background-color: var(--primary-color);
  transition: var(--transition);
}

/* Main Content Sections */
.section {
  padding: 4rem 0;
}

.section:nth-child(even) {
  background-color: var(--light-color);
}

/* Section Intro with Image */
.section-intro {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin-bottom: 2rem;
  align-items: center;
}

.section-text {
  flex: 1;
  min-width: 300px;
}

.section-image {
  flex: 1;
  min-width: 300px;
}

.section-image img {
  width: 100%;
  height: auto;
  box-shadow: var(--shadow);
}

/* Introduction Section */
.intro-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2rem;
}

.intro-text {
  flex: 1;
  min-width: 300px;
}

.intro-image {
  flex: 1;
  min-width: 300px;
}

.intro-image img {
  width: 100%;
  height: auto;
  box-shadow: var(--shadow);
}

/* Investment Tips Section */
.tip-card {
  background-color: var(--card-background);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow);
}

.medium-container {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.medium-item {
  flex: 1;
  min-width: 250px;
}

.medium-item img {
  margin-top: 1rem;
  width: 100%;
  height: auto;
  max-height: 200px;
  object-fit: cover;
}

.read-more {
  text-align: center;
  margin-top: 2rem;
}

.btn {
  background-color: var(--secondary-color);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
}

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

/* LA Galleries Section */
.filter-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
  align-items: center;
}

.search-box {
  flex: 1;
  min-width: 250px;
}

.search-box input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
}

.filter-options {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.filter-options label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.filter-options select {
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  background-color: white;
}

.cards-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

.gallery-card, .auction-card {
  background-color: white;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.gallery-card:hover, .auction-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.card-content {
  padding: 1.5rem;
}

.card-title {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.meta-item {
  background-color: var(--light-color);
  padding: 0.25rem 0.5rem;
  border-radius: 3px;
}

.beginner-friendly {
  background-color: #2ecc71;
  color: white;
}

.card-description {
  margin-bottom: 1rem;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
}

.card-link {
  font-weight: 600;
}

/* Loading Indicator */
.loading-indicator {
  grid-column: 1 / -1;
  text-align: center;
  padding: 2rem;
  color: var(--primary-color);
  font-style: italic;
}

/* Art Auctions Section */
.auction-date {
  font-weight: 600;
  color: var(--accent-color);
}

/* Gallery and Auction Showcases */
.gallery-showcase, .auction-items-showcase {
  margin-top: 3rem;
}

.gallery-images, .auction-item-images {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

figure {
  margin: 0;
}

figcaption {
  text-align: center;
  margin-top: 0.5rem;
  font-size: 0.9rem;
  font-style: italic;
}

/* Building Your Collection Section */
.collection-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.collection-item {
  background-color: var(--card-background);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.collection-item h3 {
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.collection-item ul {
  margin-bottom: 0;
}

/* Collection Planning Tool */
.collection-tips {
  margin-top: 3rem;
}

.collection-planner {
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-top: 1.5rem;
}

.planner-form {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  align-items: flex-end;
}

.form-group {
  flex: 1;
  min-width: 200px;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.form-group select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  background-color: white;
}

.recommendations {
  margin-top: 2rem;
}

.recommendation-card {
  background-color: var(--light-color);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
}

.recommendation-card h5 {
  color: var(--secondary-color);
  margin-bottom: 0.75rem;
}

.recommendation-card ul {
  margin-top: 1rem;
}

.recommendation-note {
  font-size: 0.9rem;
  font-style: italic;
  margin-top: 1.5rem;
}

/* Contact Section */
.contact-form-container {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin-top: 2rem;
}

.contact-form {
  flex: 2;
  min-width: 300px;
  background-color: var(--card-background);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.contact-info {
  flex: 1;
  min-width: 250px;
  background-color: var(--primary-color);
  color: white;
  padding: 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.contact-info h3 {
  color: white;
}

.contact-form .form-group {
  margin-bottom: 1.5rem;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  background-color: white;
}

.contact-form textarea {
  resize: vertical;
}

.contact-form button {
  width: 100%;
}

/* Footer Styles */
footer {
  background-color: var(--primary-color);
  color: white;
  padding: 3rem 0 1rem;
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section {
  flex: 1;
  min-width: 250px;
}

.footer-section h3 {
  color: white;
  margin-bottom: 1rem;
}

.footer-section ul {
  list-style: none;
  padding: 0;
}

.footer-section li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: var(--light-color);
}

.footer-section a:hover {
  color: white;
}

.copyright {
  text-align: center;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
}

.copyright a {
  color: var(--light-color);
  margin: 0 0.5rem;
}

/* Tooltip Styles */
.tooltip-term {
  position: relative;
  border-bottom: 1px dotted var(--secondary-color);
  cursor: help;
}

.tooltip-term .tooltip-text {
  visibility: hidden;
  width: 250px;
  background-color: var(--dark-color);
  color: white;
  text-align: center;
  border-radius: var(--border-radius);
  padding: 0.75rem;
  position: absolute;
  z-index: 1;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  transition: opacity 0.3s;
  font-size: 0.9rem;
  box-shadow: var(--shadow);
}

.tooltip-term .tooltip-text::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: var(--dark-color) transparent transparent transparent;
}

.tooltip-term:hover .tooltip-text {
  visibility: visible;
  opacity: 1;
}

/* Calendar Styles */
.calendar-section {
  margin: 2rem 0;
  padding: 1.5rem;
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.calendar-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.5rem;
}

.calendar-day-header {
  text-align: center;
  font-weight: 600;
  padding: 0.5rem;
  background-color: var(--light-color);
  border-radius: var(--border-radius);
}

.calendar-day {
  min-height: 100px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 0.5rem;
  position: relative;
}

.calendar-day.empty {
  background-color: #f9f9f9;
  border: 1px dashed var(--border-color);
}

.day-number {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.day-events {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.calendar-event {
  padding: 0.25rem 0.5rem;
  border-radius: 3px;
  font-size: 0.8rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  position: relative;
  cursor: pointer;
}

.calendar-event.gallery {
  background-color: var(--gallery-event-color);
  color: white;
}

.calendar-event.auction {
  background-color: var(--auction-event-color);
  color: white;
}

.event-tooltip {
  display: none;
  position: absolute;
  background-color: white;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 0.75rem;
  width: 250px;
  box-shadow: var(--shadow);
  z-index: 10;
  top: 100%;
  left: 0;
}

.calendar-event:hover .event-tooltip {
  display: block;
}

/* Global Search Styles */
.search-button {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background-color: rgba(255, 255, 255, 0.2);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  padding: 0.5rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: var(--transition);
}

.search-button:hover {
  background-color: rgba(255, 255, 255, 0.3);
}

.search-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 10vh;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.search-overlay.active {
  opacity: 1;
  visibility: visible;
}

.search-modal {
  background-color: white;
  border-radius: var(--border-radius);
  width: 90%;
  max-width: 800px;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.search-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.search-header h3 {
  margin: 0;
}

#close-search {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-color);
}

.search-input-container {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
}

#global-search-input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 1rem;
}

.search-results {
  padding: 1rem;
}

.result-section {
  margin-bottom: 1.5rem;
}

.result-section h4 {
  margin-bottom: 0.5rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--border-color);
}

.search-result-item {
  margin-bottom: 0.5rem;
  list-style: none;
}

.search-result-item a {
  display: block;
  padding: 0.5rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.search-result-item a:hover {
  background-color: var(--light-color);
}

.search-result-item strong {
  display: block;
}

.search-result-item span {
  display: block;
  font-size: 0.9rem;
  color: #666;
  margin-top: 0.25rem;
}

/* Highlight for search results */
.highlight-result {
  animation: highlight-pulse 2s ease-in-out;
  box-shadow: 0 0 0 2px var(--secondary-color);
}

@keyframes highlight-pulse {
  0% { box-shadow: 0 0 0 2px var(--secondary-color); }
  50% { box-shadow: 0 0 0 6px rgba(52, 152, 219, 0.5); }
  100% { box-shadow: 0 0 0 2px var(--secondary-color); }
}

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

/* Skip to main content link for keyboard users */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary-color);
  color: white;
  padding: 8px;
  z-index: 1001;
  transition: top 0.3s;
}

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

/* High contrast focus indicators */
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid #ffbf47;
  outline-offset: 3px;
}

/* Responsive Styles */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  .intro-content, .section-intro {
    flex-direction: column;
  }
  
  #menu-toggle {
    display: block;
  }
  
  #nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
  }
  
  #nav-links.active {
    display: flex;
  }
  
  #main-nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .footer-content {
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .search-button {
    top: auto;
    bottom: 1rem;
    right: 1rem;
  }
  
  .calendar-grid {
    font-size: 0.9rem;
  }
  
  .calendar-day {
    min-height: 80px;
  }
  
  .calendar-controls {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .planner-form {
    flex-direction: column;
    align-items: stretch;
  }
  
  .contact-form-container {
    flex-direction: column;
  }
}

/* Animation for cards loading */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.gallery-card, .auction-card, .recommendation-card {
  animation: fadeIn 0.5s ease forwards;
}

/* Hidden elements for JS toggle */
.hidden {
  display: none;
}

/* Print styles */
@media print {
  header, nav, footer, .btn, .filter-controls, .contact-form {
    display: none;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.5;
    color: #000;
    background: #fff;
  }
  
  .container {
    width: 100%;
    max-width: none;
    padding: 0;
    margin: 0;
  }
  
  h1, h2, h3, h4, h5, h6 {
    page-break-after: avoid;
    page-break-inside: avoid;
  }
  
  img {
    max-width: 100% !important;
    page-break-inside: avoid;
  }
  
  .section {
    page-break-inside: avoid;
    padding: 1rem 0;
  }
  
  a {
    color: #000;
    text-decoration: underline;
  }
  
  a[href^="http"]:after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
  }
}