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

:root {
  /* Color palette with accessible contrast ratios */
  --color-primary: #2563eb;
  --color-primary-dark: #1e40af;
  --color-text: #1f2937;
  --color-text-light: #6b7280;
  --color-background: #ffffff;
  --color-background-alt: #f9fafb;
  --color-border: #e5e7eb;
  --color-focus: #3b82f6;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-base: 1rem;
  --font-size-large: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.8rem;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  
  /* Layout */
  --max-width: 1200px;
  --border-radius: 0.5rem;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --color-text: #000000;
    --color-border: #000000;
  }
}

/* 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;
  }
}

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

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: #000;
  color: #fff;
  padding: 8px;
  text-decoration: none;
  z-index: 100;
}
.skip-link:focus {
  top: 0;
}

/* Focus styles for accessibility */
:focus {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

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

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

h1 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-md);
}

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

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

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

a {
  color: var(--color-primary);
  text-decoration: underline;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-primary-dark);
}

a:focus {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
  background: #000;
  color: #fff;
  padding: 8px;
  text-decoration: none;
  z-index: 100;
  font-weight: bold;
}

.skip-link:focus {
  position: absolute;
  left: 0;
  top: 0;
  width: auto;
  height: auto;
  overflow: visible;
}

/* Header and Navigation */
header {
  background-color: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-sm) 0;
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  position: relative;
  gap: var(--spacing-sm);
}

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

.profile-image {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: var(--color-border) 0 0 0 2px;
  border: var(--color-background) 2px solid;
}

.logo {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
}

/* Menu Button - Hidden on Desktop */
.menu-toggle {
  display: none;
}

.menu-button {
  display: none;
  cursor: pointer;
  background-color: var(--color-primary);
  color: var(--color-background);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: var(--font-size-base);
  transition: background-color 0.2s ease;
  z-index: 1001;
}

.menu-button:hover {
  background-color: var(--color-primary-dark);
}

.menu-text::before {
  content: 'Menu';
}

.menu-toggle:checked ~ .menu-button .menu-text::before {
  content: 'Close';
}

/* Show menu button on mobile */
@media (max-width: 768px) {
  .menu-button {
    display: block;
  }
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
}

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

.nav-menu a:hover {
  background-color: #e0e7ff;
  color: var(--color-primary-dark);
}

.nav-menu a[aria-current="page"] {
  background-color: #e0e7ff;
  color: var(--color-primary-dark);
  font-weight: 700;
}

/* Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: var(--spacing-2xl) var(--spacing-md);
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: var(--font-size-4xl);
  font-weight: 500;
  margin-bottom: var(--spacing-md);
  color: white;
}

.hero-subtitle {
  font-size: var(--font-size-large);
  margin-bottom: var(--spacing-lg);
  opacity: 0.95;
}

.cta-button {
  display: inline-block;
  background-color: white;
  color: var(--color-primary);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 600;
  font-size: var(--font-size-large);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  /* Minimum touch target size */
  min-height: 44px;
  min-width: 44px;
  margin-right: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Services Grid */
.services {
  background-color: var(--color-background-alt);
}

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

.service-card {
  background-color: white;
  padding: var(--spacing-lg);
  padding-top: calc(var(--spacing-lg) + 20px);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  position: relative;
  margin-top: 24px;
}

.service-icon {
  position: absolute;
  top: -24px;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 48px;
  background-color: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.service-icon svg {
  width: 24px;
  height: 24px;
  color: white;
}

.service-card h3 {
  color: var(--color-primary-dark);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: 600;
}

.service-card p:last-child {
  margin-bottom: 0;
}

/* Clients Section */
.clients {
  background-color: var(--color-background);
}

.clients-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-lg);
  align-items: center;
}

.client-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  min-height: 180px;
}

.client-logo img {
  max-width: 100%;
  max-height: 120px;
  min-height: 80px;
  width: auto;
  height: auto;
  object-fit: contain;
}

/* Case Studies Grid */

.featured-work {
  background-color: var(--color-background-alt);
}

.case-studies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

.case-study-card {
  position: relative;
  background-color: white;
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
  cursor: pointer;
}

.case-study-card .stretched-link::after {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 1;
  content: "";
}

.case-study-card .case-study-thumbnail {
  position: relative;
  z-index: 2;
}

.case-study-card .read-more {
  position: relative;
  z-index: 2;
}

.case-study-card .case-study-thumbnail {
  display: block;
  width: calc(100% + var(--spacing-lg) * 2);
  height: 150px;
  margin: calc(var(--spacing-lg) * -1) calc(var(--spacing-lg) * -1) var(--spacing-md);
  border-radius: var(--border-radius) var(--border-radius) 0 0;
  overflow: hidden;
}

.case-study-card .case-study-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

.case-study-card:hover .case-study-thumbnail img {
  transform: scale(1.05);
}

.case-study-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.case-study-card h3 {
  margin-bottom: var(--spacing-sm);
}

.case-study-card h3 a {
  color: var(--color-text);
  text-decoration: none;
}

.case-study-card h3 a:hover {
  color: var(--color-primary);
}

.case-study-card p {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-sm);
}

/* Tags */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  list-style: none;
  margin: var(--spacing-sm) 0;
}

.tag {
  background-color: var(--color-background-alt);
  color: var(--color-text);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  border: 1px solid var(--color-border);
}

/* Read more link */
.read-more,
.view-all,
.back-link {
  display: inline-block;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  margin-top: var(--spacing-sm);
  /* Ensure minimum touch target */
  padding: var(--spacing-xs);
}

.read-more:hover,
.view-all:hover,
.back-link:hover {
  text-decoration: underline;
}

.view-all {
  text-align: center;
  display: block;
  margin-top: var(--spacing-lg);
}

/* Case Study Page */
.case-study {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md) var(--spacing-xl) var(--spacing-md);
}

.case-study-hero {
  margin: 0 calc(var(--spacing-md) * -1) var(--spacing-xl) calc(var(--spacing-md) * -1);
  width: calc(100% + var(--spacing-md) * 2);
  max-height: 500px;
  overflow: hidden;
}

.case-study-hero img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  max-height: 500px;
}

.case-study-header {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 2px solid var(--color-border);
}

.case-study-header .client,
.case-study-header .date {
  color: var(--color-text-light);
  font-size: var(--font-size-base);
}

.case-study-content {
  max-width: 800px;
  font-size: var(--font-size-large);
  line-height: 1.7;
}

.case-study-content h2 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.case-study-content h3 {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
}

.case-study-content ul,
.case-study-content ol {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.case-study-content li {
  margin-bottom: var(--spacing-xs);
}

.case-study-nav {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

/* Case Studies List Page */
.case-studies-page .page-intro {
  font-size: var(--font-size-large);
  color: var(--color-text-light);
  max-width: 800px;
  margin-bottom: var(--spacing-xl);
}

.case-studies-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.case-study-item {
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--spacing-lg);
  align-items: start;
}

.case-study-item:last-child {
  border-bottom: none;
}

.case-study-thumbnail {
  width: 100%;
  height: 180px;
  overflow: hidden;
  border-radius: var(--border-radius);
  background-color: var(--color-background-alt);
}

.case-study-thumbnail a {
  display: block;
  width: 100%;
  height: 100%;
}

.case-study-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.case-study-thumbnail:hover img {
  transform: scale(1.05);
}

.case-study-text {
  min-width: 0;
}

.case-study-item h2 {
  margin-bottom: var(--spacing-xs);
}

.case-study-item h2 a {
  color: var(--color-text);
  text-decoration: none;
}

.case-study-item h2 a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.case-study-item .client {
  color: var(--color-text-light);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-xs);
}

.case-study-item .description {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-sm);
}

/* About & Contact Pages */
.about-content,
.contact-content {
  max-width: 800px;
  font-size: var(--font-size-large);
  line-height: 1.7;
}

.about-content h2,
.contact-content h2 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

/* Experience Page */
.experience-page h1 {
  margin-bottom: var(--spacing-xl);
}

.experience-section {
  margin-bottom: var(--spacing-2xl);
}

.experience-section h2 {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-border);
}

.experience-item {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.experience-item:last-child {
  border-bottom: none;
}

.experience-item h3 {
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

.experience-item .dates {
  color: var(--color-text-light);
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-xs);
  font-style: italic;
}

.experience-item .project {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-xs);
}

.about-content ul {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.about-content li {
  margin-bottom: var(--spacing-xs);
}

.contact-methods,
.contact-info {
  margin-top: var(--spacing-lg);
}

.contact-methods ul {
  list-style: none;
  margin-left: 0;
}

.contact-methods li {
  margin-bottom: var(--spacing-sm);
}

/* Footer */
footer {
  background-color: var(--color-text);
  color: white;
  padding: var(--spacing-lg) 0;
  margin-top: var(--spacing-2xl);
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  text-align: center;
}

footer a {
  color: white;
  text-decoration: underline;
}

footer a:hover {
  opacity: 0.8;
}

footer p {
  margin-bottom: var(--spacing-xs);
}

/* Responsive Design */
@media (max-width: 768px) {
  :root {
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.75rem;
    --font-size-2xl: 1.5rem;
  }
  
  .nav-container {
    flex-direction: row;
    justify-content: space-between;
  }
  
  .nav-menu {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-background);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: var(--spacing-sm) 0;
    gap: 0;
    z-index: 1000;
  }

  .nav-menu li {
    width: 100%;
    text-align: center;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-menu li:last-child {
    border-bottom: none;
  }

  .nav-menu a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    width: 100%;
  }

  .logo{
    font-size: var(--font-size-large);
  }

  /* Show menu when checkbox is checked */
  .menu-toggle:checked ~ .nav-menu {
    display: flex;
  }
  
  .hero {
    padding: var(--spacing-xl) var(--spacing-md);
  }

  .cta-button {
    font-size: var(--font-size-base);
    padding: var(--spacing-xs) var(--spacing-md);
  }
  
  .services-grid,
  .case-studies-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    text-align: center;
  }
  
  .case-study-content {
    font-size: var(--font-size-base);
  }

  .case-study-item {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }

  .case-study-thumbnail {
    height: 200px;
  }

  .clients-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }

  .client-logo {
    padding: var(--spacing-sm);
    min-height: 120px;
  }

  .client-logo img {
    max-height: 80px;
    min-height: 60px;
  }
}

/* Captioned Image Component */
.captioned-image {
  margin: var(--spacing-lg) 0;
  max-width: 100%;
}

.captioned-image img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--color-border);
  border-top-left-radius: var(--border-radius);
  border-top-right-radius: var(--border-radius);
}

.captioned-image figcaption {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-top: none;
  padding: var(--spacing-sm);
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  line-height: 1.5;
  border-bottom-left-radius: var(--border-radius);
  border-bottom-right-radius: var(--border-radius);
}

/* Print styles for accessibility */
@media print {
  header,
  footer,
  .nav-menu,
  .cta-button {
    display: none;
  }
  
  body {
    color: #000;
    background: #fff;
  }
  
  a {
    text-decoration: underline;
    color: #000;
  }
  
  a[href^="http"]:after {
    content: " (" attr(href) ")";
  }
}