/* Civic.AI Website Styles */

/* CSS Reset and Base Styles */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Color Variables */
:root {
  --color-primary: #1e3a8a; /* Deep blue */
  --color-secondary: #475569; /* Slate gray */
  --color-light: #f8fafc; /* Light gray/white */
  --color-white: #ffffff;
  --color-text: #334155; /* Dark slate */
  --color-text-light: #64748b; /* Lighter slate */
  --color-accent: #3b82f6; /* Bright blue for links/buttons */
  --color-border: #e2e8f0;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

/* Base Typography */
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-white);
}

/* Screen Reader Only Content */
.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: var(--color-white);
  padding: 8px;
  text-decoration: none;
  border-radius: var(--radius-sm);
  z-index: 1000;
  font-weight: 500;
}

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

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

h1 {
  font-size: var(--font-size-4xl);
}

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-2xl);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover, a:focus {
  color: var(--color-primary);
  text-decoration: underline;
}

ul, ol {
  margin-bottom: var(--spacing-sm);
  padding-left: var(--spacing-md);
}

li {
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

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

@media (min-width: 768px) {
  .container {
    padding: 0 var(--spacing-lg);
  }
}

/* Header and Navigation */
header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo img {
  height: 40px;
  width: auto;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  color: var(--color-primary);
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
}

.nav-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--spacing-lg);
}

.nav-menu a {
  color: var(--color-text);
  font-weight: 500;
  padding: var(--spacing-xs) 0;
  transition: color 0.2s ease;
  text-decoration: none;
}

.nav-menu a:hover,
.nav-menu a:focus {
  color: var(--color-primary);
  text-decoration: none;
}

/* Mobile Navigation */
@media (max-width: 767px) {
  .nav-toggle {
    display: block;
  }
  
  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-top: 1px solid var(--color-border);
    flex-direction: column;
    padding: var(--spacing-sm);
    gap: 0;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-lg);
  }
  
  .nav-menu.show {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-menu li {
    width: 100%;
  }
  
  .nav-menu a {
    display: block;
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
  }
  
  .nav-menu a:last-child {
    border-bottom: none;
  }
}

/* Button Styles */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 500;
  text-align: center;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: var(--font-size-base);
  line-height: 1.5;
}

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

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover,
.btn-secondary:focus {
  background-color: var(--color-primary);
  color: var(--color-white);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline-white {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
  border-width: 2px;
}

.btn-outline-white:hover,
.btn-outline-white:focus {
  background-color: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Section Layouts */
.section {
  padding: var(--spacing-2xl) 0;
}

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

.section-dark {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4,
.section-dark h5,
.section-dark h6 {
  color: var(--color-white);
}

.section-dark p,
.section-dark li {
  color: rgba(255, 255, 255, 0.9);
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  font-size: var(--font-size-3xl);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-white);
  padding: var(--spacing-2xl) 0;
  text-align: center;
  min-height: 60vh;
  display: flex;
  align-items: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.hero h1 {
  color: var(--color-white);
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-md);
  line-height: 1.1;
}

.hero p {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-xl);
  color: rgba(255, 255, 255, 0.9);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
}

@media (max-width: 767px) {
  .hero {
    padding: var(--spacing-xl) 0;
    min-height: 50vh;
  }
  
  .hero h1 {
    font-size: var(--font-size-3xl);
  }
  
  .hero p {
    font-size: var(--font-size-lg);
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-buttons .btn {
    width: 100%;
    max-width: 280px;
  }
}

/* Card Components */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  height: 100%;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.section-dark .card {
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.section-dark .card h3 {
  color: var(--color-white);
}

.section-dark .card p,
.section-dark .card li {
  color: rgba(255, 255, 255, 0.9);
}

/* Grid Layouts */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: 1fr 1fr;
  }
}

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

@media (min-width: 768px) {
  .usecases-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .usecases-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* About Content */
.about-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about-content img {
  display: block;
  margin: 0 auto var(--spacing-md);
}

.about-content h3 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-sm);
}

.about-content ul {
  text-align: left;
  max-width: 600px;
  margin: var(--spacing-sm) auto;
}

/* Founder Section */
.founder-section {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--spacing-xl);
  align-items: start;
  margin-bottom: var(--spacing-xl);
  text-align: left;
}

.founder-photo {
  width: 200px;
  height: 250px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  margin: 0;
}

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

@media (max-width: 767px) {
  .founder-section {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--spacing-lg);
  }
  
  .founder-photo {
    width: 150px;
    height: 190px;
    margin: 0 auto;
  }
  
  .founder-text {
    text-align: center;
  }
}

/* Contact Form */
.contact-content {
  max-width: 600px;
  margin: 0 auto;
}

.contact-form {
  display: grid;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.contact-form label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 12px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.contact-form textarea {
  resize: vertical;
  min-height: 120px;
}

/* Footer */
footer {
  background-color: var(--color-secondary);
  color: var(--color-white);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  text-align: left;
}

.footer-section h4 {
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  font-size: 1.1rem;
}

.footer-section p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-sm);
  font-size: 0.9rem;
  line-height: 1.5;
}

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

.footer-section ul li {
  margin-bottom: var(--spacing-xs);
}

.footer-section ul li a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 0.2s ease;
  font-size: 0.9rem;
}

.footer-section ul li a:hover,
.footer-section ul li a:focus {
  color: var(--color-white);
  text-decoration: underline;
}

.contact-info p {
  margin-bottom: var(--spacing-xs);
  font-size: 0.85rem;
}

.contact-info a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  transition: color 0.2s ease;
}

.contact-info a:hover {
  color: var(--color-white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: var(--spacing-md);
  text-align: center;
}

.footer-bottom small {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.85rem;
}

/* Responsive Design Improvements */
@media (max-width: 767px) {
  .section {
    padding: var(--spacing-xl) 0;
  }
  
  .section-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-lg);
  }
  
  .card {
    padding: var(--spacing-md);
  }
  
  .footer-links {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  html {
    scroll-behavior: auto;
  }
}

/* Focus Styles for Keyboard Navigation */
a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Print Styles */
@media print {
  .nav-toggle,
  .hero-buttons,
  .btn {
    display: none;
  }
  
  .hero {
    background: none;
    color: var(--color-text);
  }
  
  .section-dark {
    background: none;
    color: var(--color-text);
  }
  
  .card {
    border: 1px solid var(--color-border);
    box-shadow: none;
  }
}

/* Loading States */
img {
  max-width: 100%;
  height: auto;
  transition: opacity 0.3s ease;
}

img[src=""] {
  opacity: 0;
}

/* FAQ Section */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

@media (min-width: 768px) {
  .faq-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.faq-item {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.faq-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.faq-item h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.3;
}

.faq-item p {
  color: var(--color-text);
  line-height: 1.6;
  margin: 0;
}

.section-dark .faq-item {
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.section-dark .faq-item h3 {
  color: var(--color-white);
}

.section-dark .faq-item p {
  color: rgba(255, 255, 255, 0.9);
}

/* Blog Styles */
.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-lg);
}

@media (min-width: 768px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .blog-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.blog-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.blog-card.featured {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-white);
}

@media (min-width: 768px) {
  .blog-card.featured {
    grid-column: 1 / 3;
  }
}

@media (min-width: 1024px) {
  .blog-card.featured {
    grid-column: 1 / 3;
  }
}

.blog-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
  font-size: 0.85rem;
}

.blog-date {
  color: var(--color-text-secondary);
  font-weight: 500;
}

.blog-category {
  background-color: var(--color-accent);
  color: var(--color-white);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
}

.blog-card.featured .blog-date {
  color: rgba(255, 255, 255, 0.8);
}

.blog-card.featured .blog-category {
  background-color: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
}

.blog-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.3;
  flex-shrink: 0;
}

.blog-card.featured h3 {
  color: var(--color-white);
  font-size: 1.5rem;
}

.blog-excerpt {
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
  flex-grow: 1;
}

.blog-card.featured .blog-excerpt {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.1rem;
}

.blog-author {
  margin-top: auto;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
  font-size: 0.9rem;
}

.blog-card.featured .blog-author {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.9);
}

.blog-author strong {
  display: block;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.blog-card.featured .blog-author strong {
  color: var(--color-white);
}

.blog-author span {
  color: var(--color-text-secondary);
  font-size: 0.85rem;
}

.blog-card.featured .blog-author span {
  color: rgba(255, 255, 255, 0.7);
}

/* Category Grid */
.category-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

@media (min-width: 768px) {
  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .category-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.category-card {
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.category-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  background-color: rgba(255, 255, 255, 0.15);
}

.category-card h3 {
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
  font-size: 1.1rem;
  font-weight: 600;
}

.category-card p {
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.5;
  margin: 0;
}

/* Organizations Grid */
.organizations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-sm);
  margin: var(--spacing-lg) 0;
}

.org-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-sm);
  text-align: center;
  font-weight: 500;
  color: var(--color-text);
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
}

.org-item:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

@media (max-width: 767px) {
  .organizations-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-xs);
  }
  
  .org-item {
    padding: var(--spacing-xs);
    font-size: 0.9rem;
  }
}

/* Resource Carousel Styles */
.resource-carousel {
  position: relative;
  margin: var(--spacing-lg) 0;
  padding: var(--spacing-sm) 0;
}

.carousel-controls {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  z-index: 10;
  pointer-events: none;
  transform: translateY(-50%);
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  pointer-events: auto;
  box-shadow: var(--shadow-md);
}

.carousel-btn:hover {
  background: var(--color-white);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
}

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

.carousel-btn svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
}

.carousel-prev {
  left: -24px;
}

.carousel-next {
  right: -24px;
}

.carousel-track {
  display: flex;
  gap: var(--spacing-md);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: var(--spacing-sm) var(--spacing-lg);
  margin: 0 calc(-1 * var(--spacing-lg));
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.carousel-track::-webkit-scrollbar {
  display: none;
}

.carousel-item {
  flex: 0 0 auto;
  scroll-snap-align: center;
  width: 280px;
  list-style: none;
}

.resource-card {
  display: block;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  height: 350px;
  background: var(--color-white);
}

.resource-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

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

.resource-card picture {
  display: block;
  width: 100%;
  height: 100%;
  position: relative;
}

.resource-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  aspect-ratio: 3/4;
}

.resource-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.4));
  color: var(--color-white);
  padding: var(--spacing-md);
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.resource-card:hover .resource-overlay,
.resource-card:focus .resource-overlay {
  transform: translateY(0);
}

.resource-overlay h3 {
  color: var(--color-white);
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  line-height: 1.3;
}

.resource-overlay p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-xs);
  line-height: 1.4;
}

.resource-header {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-white);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--spacing-xs);
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-lg);
}

.carousel-dot {
  width: 12px;
  height: 12px;
  border: none;
  border-radius: 50%;
  background: var(--color-border);
  cursor: pointer;
  transition: all 0.2s ease;
}

.carousel-dot:hover,
.carousel-dot.active {
  background: var(--color-accent);
}

.carousel-dot:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.resource-summary {
  margin-top: var(--spacing-xl);
  text-align: center;
}

.resource-summary p {
  color: var(--color-text-light);
  font-size: var(--font-size-base);
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Responsive Design for Carousel */
@media (max-width: 1024px) {
  .carousel-prev {
    left: -16px;
  }
  
  .carousel-next {
    right: -16px;
  }
  
  .carousel-btn {
    width: 40px;
    height: 40px;
  }
  
  .carousel-btn svg {
    width: 16px;
    height: 16px;
  }
}

@media (max-width: 768px) {
  .carousel-controls {
    display: none;
  }
  
  .carousel-track {
    padding: var(--spacing-sm);
    margin: 0 calc(-1 * var(--spacing-sm));
    gap: var(--spacing-sm);
  }
  
  .carousel-item {
    width: 250px;
  }
  
  .resource-card {
    height: 300px;
  }
  
  .resource-overlay {
    transform: translateY(0);
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.6));
  }
  
  .resource-overlay h3 {
    font-size: var(--font-size-base);
  }
  
  .resource-overlay p {
    font-size: 0.8rem;
  }
}

@media (max-width: 480px) {
  .carousel-item {
    width: 220px;
  }
  
  .resource-card {
    height: 280px;
  }
  
  .carousel-track {
    gap: var(--spacing-xs);
  }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  .carousel-track {
    scroll-behavior: auto;
  }
  
  .resource-card,
  .carousel-btn,
  .carousel-dot,
  .resource-overlay {
    transition: none;
  }
  
  .resource-card:hover {
    transform: none;
  }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  :root {
    --color-primary: #000080;
    --color-secondary: #2d3748;
    --color-accent: #0066cc;
    --color-border: #4a5568;
  }
  
  .resource-overlay {
    background: rgba(0, 0, 0, 0.9);
  }
  
  .carousel-btn {
    background: var(--color-white);
    border: 2px solid var(--color-primary);
  }
}