:root {
  --color-primary: #5B0E2D;
  --color-secondary: #F4C2C2;
  --color-accent: #C9A646;
  --color-bg: #F8F4F0;
  --color-text: #2B2B2B;

  --radius-card: 16px;
  --radius-btn: 12px;
  --space-1: 8px;
  --space-2: 12px;
  --space-3: 16px;
  --space-4: 24px;
  --shadow-1: 0 2px 6px rgba(0,0,0,.08);
}

/* Base Styles */
html, body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif !important;
  margin: 0;
  line-height: 1.6;
}

h1, h2, h3, h4 {
  font-family: "Playfair Display", serif !important;
  margin: 0 0 var(--space-3);
  line-height: 1.2;
}

.button {
  background: var(--color-primary);
  color: #fff;
  border: 0;
  border-radius: var(--radius-btn);
  padding: 10px 16px;
  cursor: pointer;
  transition: opacity 0.2s;
  text-decoration: none;
  display: inline-block;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
}

.button:hover {
  opacity: 0.9;
}

.button:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

.button-secondary {
  background: var(--color-secondary);
  color: var(--color-primary);
}

.button-secondary:hover {
  opacity: 0.9;
}

.button-secondary:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

.card {
  background: #fff;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-1);
  padding: var(--space-4);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.12);
}

.card:focus-within {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

.input, select, textarea {
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid #e5e5e5;
  background: #fff;
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.2s ease;
}

.input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
  border-color: var(--color-accent);
}

.tag {
  display: inline-block;
  background: var(--color-secondary);
  color: #3a2a2a;
  padding: 4px 10px;
  border-radius: 999px;
  margin: 2px 6px 0 0;
  font-size: 0.85rem;
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Utility Classes */
.space-y-4 > * + * {
  margin-top: var(--space-4);
}

.mb-6 {
  margin-bottom: var(--space-4);
}

.mb-4 {
  margin-bottom: var(--space-3);
}

.mb-3 {
  margin-bottom: var(--space-3);
}

.mb-2 {
  margin-bottom: var(--space-2);
}

.mt-6 {
  margin-top: var(--space-4);
}

.mt-4 {
  margin-top: var(--space-3);
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

.max-w-md {
  max-width: 28rem;
}

.w-full {
  width: 100%;
}

.p-8 {
  padding: var(--space-4);
}

.p-6 {
  padding: var(--space-3);
}

.p-3 {
  padding: var(--space-3);
}

.rounded-xl {
  border-radius: 12px;
}

.rounded-lg {
  border-radius: 10px;
}

/* Flexbox Utilities */
.flex {
  display: flex;
}

.flex-1 {
  flex: 1;
}

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

.gap-2 {
  gap: var(--space-2);
}

.gap-4 {
  gap: var(--space-4);
}

.flex-wrap {
  flex-wrap: wrap;
}

.min-w-64 {
  min-width: 16rem;
}

/* Text Utilities */
.text-center {
  text-align: center;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: var(--space-4) 0;
  margin-bottom: var(--space-4);
}

.hero-section {
  text-align: center;
  padding: var(--space-4) 0;
  margin-bottom: var(--space-4);
}

.heading-1 {
  font-family: "Playfair Display", serif !important;
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--space-3);
  color: var(--color-primary);
}

.heading-3 {
  font-family: "Playfair Display", serif !important;
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.body {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif !important;
  font-size: 1.1rem;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.body-sm {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif !important;
  font-size: 0.9rem;
  color: var(--color-text);
  opacity: 0.8;
}

/* Scan Section */
.scan-section {
  padding: var(--space-4) 0;
}

/* Filter Section */
.filter-section {
  padding: var(--space-3) 0;
}

/* Wines Section */
.wines-section {
  padding: var(--space-3) 0;
}

/* Card Variants */
.card-dark {
  background: rgba(30, 41, 59, 0.85);
  border: 1px solid #232946;
  color: #e2e8f0;
}

/* Button Variants */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 10px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  font-family: inherit;
  font-size: 1rem;
  position: relative;
}

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

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

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

.btn-secondary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-secondary:active {
  transform: translateY(0);
}

.btn-secondary:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* Special button variant for CSV export */
.btn-accent {
  background: var(--color-accent);
  color: #212;
}

.btn-accent:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-accent:active {
  transform: translateY(0);
}

.btn-accent:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* Form Elements */
.bg-input {
  background: rgba(30, 41, 59, 0.85);
  border: 1px solid #334155;
  color: #e2e8f0;
}

.border-input-border {
  border-color: #334155;
}

.text-main {
  color: #e2e8f0;
}

/* Enhanced focus states for all form elements */
.bg-input:focus-visible,
.border-input-border:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
  border-color: var(--color-accent);
}

/* Hover states for form elements */
.bg-input:hover,
.border-input-border:hover,
input:hover,
select:hover,
textarea:hover {
  border-color: #475569;
}

/* Improved focus ring for better visibility */
*:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* Ensure sufficient color contrast */
.text-muted {
  color: #94a3b8;
  /* Ensuring sufficient contrast against dark backgrounds */
}

.placeholder-muted::placeholder {
  color: #94a3b8;
  /* Ensuring sufficient contrast against dark backgrounds */
}

.bg-chip {
  background: rgba(51, 65, 85, 0.5);
  border: 1px solid #475569;
}

.text-chip {
  color: #cbd5e1;
}

/* Header and Navigation */
.header {
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-3) 0;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif !important;
}

.logo {
  font-family: "Playfair Display", serif !important;
  font-size: 1.8rem;
  font-weight: 700;
  margin: 0;
}

.nav {
  display: flex;
  gap: var(--space-4);
  align-items: center;
}

.nav-link {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif !important;
  color: #fff;
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 8px;
  transition: background-color 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
  background: rgba(255,255,255,0.1);
}

.nav-link:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
  background: rgba(255,255,255,0.1);
}

/* Main Content */
.main {
  min-height: calc(100vh - 200px);
  padding: var(--space-4) 0;
}

/* Footer */
.footer {
  background: var(--color-primary);
  color: #fff;
  text-align: center;
  padding: var(--space-3) 0;
  margin-top: auto;
}

.footer p {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif !important;
  margin: 0;
}

/* Features */
.features {
  padding: var(--space-4) 0;
}

.hero-title {
  font-family: "Playfair Display", serif !important;
  font-size: 3rem;
  margin-bottom: var(--space-3);
  color: var(--color-primary);
  line-height: 1.2;
}

.hero-text {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif !important;
  font-size: 1.2rem;
  color: var(--color-text);
  margin-bottom: var(--space-4);
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
}

.section-title {
  font-family: "Playfair Display", serif !important;
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: var(--space-4);
  color: var(--color-primary);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-4);
}

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

.feature-card h3 {
  font-family: "Playfair Display", serif !important;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
  font-size: 1.3rem;
  font-weight: 600;
}

.feature-card h4 {
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.feature-card p {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif !important;
  color: var(--color-text);
  line-height: 1.6;
}

/* Form Styles */
.form-group {
  margin-bottom: var(--space-3);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-1);
  font-weight: 500;
  color: var(--color-text);
}

/* Scan Page */
.scan-container {
  margin: var(--space-4) 0;
}

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

.camera-placeholder {
  background: var(--color-bg);
  border: 2px dashed var(--color-secondary);
  border-radius: var(--radius-card);
  padding: var(--space-4);
  margin-bottom: var(--space-3);
}

.camera-icon {
  font-size: 3rem;
  margin-bottom: var(--space-2);
}

.manual-entry {
  margin-top: var(--space-4);
}

.manual-entry h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

/* Wines Page */
.wines-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
  gap: var(--space-3);
}

.wines-actions {
  display: flex;
  gap: var(--space-3);
  align-items: center;
}

.search-container {
  min-width: 250px;
}

.filters {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.filter-group label {
  font-weight: 500;
  color: var(--color-text);
}

/* Grid Layout */
.wines-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .wines-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
}

/* Wine Image Styling */
.wine-image {
  width: 100%;
  border-radius: 12px;
  aspect-ratio: 16/9;
  object-fit: cover;
  margin-bottom: 16px;
}

/* Tag Variants */
.tag {
  display: inline-block;
  background: var(--color-secondary);
  color: #3a2a2a;
  padding: 4px 10px;
  border-radius: 999px;
  margin: 2px 6px 0 0;
  font-size: 0.85rem;
}

.tag-accent {
  background: var(--color-accent);
  color: #212;
}

.tag:hover {
  opacity: 0.8;
  transform: scale(1.05);
}

.tag-accent:hover {
  opacity: 0.8;
  transform: scale(1.05);
}

/* Utility classes for common display states */
.hidden {
  display: none;
}

.block {
  display: block;
}

/* Screen reader only - visually hidden but accessible to screen readers */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--color-primary);
  color: white;
  padding: 8px;
  text-decoration: none;
  border-radius: 4px;
  z-index: 1000;
  transition: top 0.3s;
}

.skip-link:focus {
  top: 6px;
}

.wine-card {
  display: flex;
  flex-direction: column;
}

.wine-image {
  height: 200px;
  background: var(--color-bg);
  border-radius: var(--radius-card) var(--radius-card) 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: calc(-1 * var(--space-4)) calc(-1 * var(--space-4)) var(--space-3) calc(-1 * var(--space-4));
}

.wine-placeholder {
  font-size: 4rem;
}

.wine-info {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.wine-name {
  font-size: 1.3rem;
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}

.wine-details {
  color: var(--color-text);
  opacity: 0.7;
  margin-bottom: var(--space-2);
}

.wine-tags {
  margin-bottom: var(--space-3);
}

.wine-actions {
  margin-top: auto;
}

/* About Page */
.about-section {
  max-width: 900px;
  margin: 0 auto;
}

.about-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.about-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.feature-list {
  padding-left: var(--space-4);
}

.feature-list li {
  margin-bottom: var(--space-2);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.feature-item h4 {
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.cta-buttons {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-3);
  flex-wrap: wrap;
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-3);
  }
  
  .heading-1 {
    font-size: 2rem;
  }
  
  .card {
    padding: var(--space-3);
  }
  
  .nav {
    flex-direction: column;
    gap: var(--space-2);
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .wines-header {
    flex-direction: column;
    align-items: stretch;
  }
  
  .wines-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .search-container {
    min-width: auto;
  }
  
  .filters {
    flex-direction: column;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .nav {
    flex-direction: column;
    gap: var(--space-2);
  }
  
  .header .container {
    flex-direction: column;
    gap: var(--space-3);
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
  
  .feature-grid {
    grid-template-columns: 1fr;
  }
  
  .wines-grid {
    grid-template-columns: 1fr;
  }
}

/* Loading and State Indicators */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--color-accent);
  border-top: 2px solid transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Improved form accessibility */
.form-group {
  margin-bottom: var(--space-3);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-1);
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
}

.form-group label:focus-within {
  color: var(--color-primary);
}

/* Error states for form validation */
.input-error {
  border-color: #ef4444;
}

.input-error:focus-visible {
  outline-color: #ef4444;
}

.error-message {
  color: #ef4444;
  font-size: 0.875rem;
  margin-top: var(--space-1);
}

/* Additional Utility Classes */
.text-sm {
  font-size: 0.875rem;
}

/* Info box colors */
.bg-blue-50 {
  background-color: #eff6ff;
}

.border-blue-200 {
  border-color: #bfdbfe;
}

.text-blue-800 {
  color: #1e40af;
}

/* Demo form colors */
.bg-gray-100 {
  background-color: #f3f4f6;
}

.text-gray-500 {
  color: #6b7280;
}

.bg-yellow-50 {
  background-color: #fefce8;
}

.border-yellow-200 {
  border-color: #fde68a;
}

.text-yellow-800 {
  color: #92400e;
}

.text-lg {
  font-size: 1.125rem;
}

.font-medium {
  font-weight: 500;
}

.font-semibold {
  font-weight: 600;
}

.font-bold {
  font-weight: 700;
}

.leading-relaxed {
  line-height: 1.75;
}

.leading-tight {
  line-height: 1.25;
}

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

/* High contrast mode support */
@media (prefers-contrast: high) {
  .btn {
    border: 2px solid currentColor;
  }
  
  .card {
    border: 2px solid var(--color-text);
  }
  
  .input, select, textarea {
    border-width: 2px;
  }
}

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