:root {
  --accent-green: #4CAF50;
  --accent-purple: #9B59B6;
  --accent-orange: #E67E22;
  --font-sans: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

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

body { 
  font-family: var(--font-sans); 
  color: #111; 
  line-height: 1.6; 
  background: #fff; 
}

.main-nav {
  position: fixed;
  top: 2rem;
  right: 2rem;
  z-index: 1000;
  display: flex;
  gap: 2rem;
}

.main-nav a {
  color: #333;
  font-weight: 500;
  font-size: 1rem;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  transition: all 0.3s ease;
}

.main-nav a:hover {
  background: rgba(76, 175, 80, 0.1);
  color: var(--accent-green);
}

.main-nav a.current {
  color: #999;
  cursor: default;
}

.main-nav a.current:hover {
  color: #999;
  background: transparent;
}

a { 
  text-decoration: none; 
  color: var(--accent-green); 
  transition: color 0.3s; 
}

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

.container { 
  max-width: 900px; 
  margin: 0 auto; 
  padding: 2rem 1rem; 
}

.hero { 
  text-align: center; 
  padding: 4rem 1rem 2rem; 
}

.logo {
  width: 120px;
  height: 120px;
  margin-bottom: 2rem;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: scale(1.05);
}

.hero h1 { 
  font-size: 3rem; 
  margin-bottom: 1rem; 
}

.hero p { 
  font-size: 1.25rem; 
  color: #555; 
}

.about { 
  text-align: center; 
  padding: 4rem 1rem; 
  
}

.about p { 
  max-width: 700px; 
  margin: 0 auto; 
  color: #888; 
  font-size: 1.1rem; 
  font-style: italic; 
}

.cases { 
  display: grid; 
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); 
  gap: 1.5rem; 
  padding: 4rem 0; 
  justify-content: center;
  max-width: 900px;
  margin: 0 auto;
}

.cases-header {
  grid-column: 1 / -1;
  text-align: center;
  font-size: 2rem;
  color: #333;
  margin-bottom: 2rem;
  font-weight: 600;
}

.case-card { 
  border: 1px solid #eee; 
  padding: 1rem; 
  border-radius: 8px; 
  overflow: hidden; 
  transition: transform 0.3s, box-shadow 0.3s; 
  cursor: pointer; 
  background: #fff; 
}

.case-card:hover { 
  transform: translateY(-5px); 
  box-shadow: 0 8px 20px rgba(0,0,0,0.1); 
}

.case-card img { 
  width: 100%; 
  height: 150px; 
  object-fit: contain; 
  object-position: center;
  border-radius: 6px; 
  margin-bottom: 1rem;
  background: #f8f8f8;
  padding: 0.5rem;
  box-sizing: border-box;
}

.case-card h3 { 
  font-size: 1.2rem; 
  margin-bottom: 0.5rem; 
  color: #111; 
}

.case-card p { 
  font-size: 0.95rem; 
  color: #555; 
}

.blog-card {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border: 2px solid #dee2e6;
}

.contact { 
  text-align: center; 
  padding: 4rem 1rem; 
}

.contact a { 
  display: inline-block; 
  margin: 0.5rem 1rem; 
  padding: 0.75rem 1.5rem; 
  border: 2px solid var(--accent-green); 
  border-radius: 6px; 
  font-weight: bold; 
  transition: all 0.3s; 
}

.contact a:hover { 
  background: var(--accent-green); 
  color: #fff; 
  border-color: var(--accent-green);
}

.linkedin-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.email-section {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.email-text {
  color: #666;
  font-size: 0.9rem;
}

.email-link {
  color: #333;
  text-decoration: none;
  font-weight: 500;
  background: none !important;
  margin: 0 !important;
  padding: 0 !important;
  border-radius: 0 !important;
  border: none !important;
}

.email-link:hover {
  color: #555;
  background: none !important;
  border: none !important;
}

.copy-button {
  background: #f0f0f0;
  color: #333;
  border: 1px solid #ddd;
  padding: 0.4rem 0.8rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.2s ease;
}

.copy-button:hover {
  background: #e0e0e0;
  border-color: #ccc;
}

.copy-button:active {
  background: #d0d0d0;
  transform: translateY(1px);
}

.copy-button.copied {
  background: #4CAF50;
  color: white;
  border-color: #4CAF50;
}

.linkedin-link svg {
  flex-shrink: 0;
}

/* About Page Styles */
.about-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 6rem 2rem 4rem;
  min-height: 100vh;
}

.about-header {
  text-align: center;
  margin-bottom: 4rem;
}

.about-logo {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 2rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.about-header h1 {
  font-size: 2.5rem;
  color: #333;
  margin-bottom: 1rem;
}

.about-content {
  margin-bottom: 4rem;
}

.letter {
  background: #fafafa;
  padding: 3rem;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  line-height: 1.8;
  font-size: 1.1rem;
}

.letter p {
  margin-bottom: 1.5rem;
  color: #444;
}

.letter .greeting {
  font-weight: 600;
  color: #333;
  margin-bottom: 2rem;
}

.letter .closing {
  margin-top: 3rem;
  font-weight: 600;
  color: #333;
}

.letter h2 {
  font-size: 1.5rem;
  color: #333;
  margin: 2.5rem 0 1.5rem 0;
  font-weight: 600;
}

.letter ul {
  margin: 1.5rem 0;
  padding-left: 2rem;
}

.letter li {
  margin-bottom: 0.8rem;
  color: #444;
}

.letter strong {
  color: #333;
  font-weight: 600;
}

.about-footer {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid #eee;
}

.contact-links {
  display: flex;
  gap: 2rem;
  justify-content: center;
  flex-wrap: wrap;
}

.contact-links a {
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--accent-green);
  border-radius: 6px;
  font-weight: 500;
  transition: all 0.3s ease;
}

.contact-links a:hover {
  background: var(--accent-green);
  color: #fff;
}

.contact-links .linkedin-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.contact-links .linkedin-link svg {
  flex-shrink: 0;
}

@media(max-width:600px) { 
  .hero h1 {
    font-size: 2.2rem;
  }
  
  .logo {
    width: 100px;
    height: 100px;
    margin-bottom: 1.5rem;
  }
  
  .main-nav {
    top: 1rem;
    right: 1rem;
    gap: 1rem;
  }
  
  .main-nav a {
    font-size: 0.9rem;
    padding: 0.4rem 0.8rem;
  }
  
  .about-container {
    padding: 5rem 1rem 3rem;
  }
  
  .letter {
    padding: 2rem;
    font-size: 1rem;
  }
  
  .about-header h1 {
    font-size: 2rem;
  }
  
  .contact-links {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }
  
  .cases-header {
    font-size: 1.5rem;
  }
}

/* Case Study Page Styles */
.case-study-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 6rem 2rem 4rem;
  min-height: 100vh;
}

.case-header {
  text-align: center;
  padding: 2rem 0 4rem;
  border-bottom: 1px solid #eee;
  margin-bottom: 3rem;
}

.case-header h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: #333;
}

.case-header p {
  font-size: 1.1rem;
  color: #555;
  max-width: 600px;
  margin: 0 auto;
}

.case-logo {
  width: 120px;
  height: auto;
  margin-bottom: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.case-content {
  line-height: 1.8;
}

.case-content img {
  width: 100%;
  max-height: 400px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 2rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.case-content h2 {
  font-size: 1.8rem;
  margin: 2.5rem 0 1.5rem 0;
  color: #333;
  font-weight: 600;
}

.case-content p {
  font-size: 1.05rem;
  color: #444;
  margin-bottom: 1.5rem;
}

.case-content ul {
  margin: 1.5rem 0;
  padding-left: 2rem;
}

.case-content li {
  margin-bottom: 0.8rem;
  color: #444;
  font-size: 1.05rem;
}

.case-navigation {
  text-align: center;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid #eee;
}

.back-link {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--accent-green);
  border-radius: 6px;
  font-weight: 500;
  transition: all 0.3s ease;
  color: var(--accent-green);
}

.back-link:hover {
  background: var(--accent-green);
  color: #fff;
  border-color: var(--accent-green);
}

@media(max-width:600px) {
  .case-study-container {
    padding: 5rem 1rem 3rem;
  }
  
  .case-header h1 {
    font-size: 2rem;
  }
  
  .case-header p {
    font-size: 1rem;
  }
  
  .case-content h2 {
    font-size: 1.5rem;
  }
  
  .case-content p,
  .case-content li {
    font-size: 1rem;
  }
}

/* Blog Page Styles */
.blog-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 6rem 2rem 4rem;
  min-height: 100vh;
}

.blog-header {
  text-align: center;
  padding: 2rem 0 4rem;
  border-bottom: 1px solid #eee;
  margin-bottom: 3rem;
}

.blog-header h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: #333;
  line-height: 1.2;
}

.blog-subtitle {
  font-size: 1.2rem;
  color: #666;
  margin-bottom: 2rem;
  font-style: italic;
}

.blog-meta {
  display: flex;
  justify-content: center;
  gap: 2rem;
  font-size: 0.9rem;
  color: #888;
}

.blog-date,
.blog-author {
  padding: 0.5rem 1rem;
  background: #f8f8f8;
  border-radius: 4px;
}

.blog-content {
  line-height: 1.8;
  font-size: 1.1rem;
}

.blog-content p {
  margin-bottom: 1.5rem;
  color: #444;
}

.blog-content h2 {
  font-size: 1.6rem;
  margin: 2.5rem 0 1.5rem 0;
  color: #333;
  font-weight: 600;
}

.blog-navigation {
  text-align: center;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid #eee;
}

@media(max-width:600px) {
  .blog-container {
    padding: 5rem 1rem 3rem;
  }
  
  .blog-header h1 {
    font-size: 2rem;
  }
  
  .blog-subtitle {
    font-size: 1.1rem;
  }
  
  .blog-meta {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }
  
  .blog-content h2 {
    font-size: 1.4rem;
  }
  
  .blog-content p {
    font-size: 1rem;
  }
}

/* Article Style Blog */
.article-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 6rem 2rem 4rem;
  min-height: 100vh;
}

.article-header {
  margin-bottom: 3rem;
}

.article-category {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-green);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 1rem;
}

.article-header h1 {
  font-size: 2.8rem;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: #1a1a1a;
  font-weight: 700;
}

.article-subtitle {
  font-size: 1.3rem;
  color: #666;
  margin-bottom: 2rem;
  line-height: 1.4;
  font-weight: 400;
}

.article-byline {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.9rem;
  color: #888;
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid #eee;
}

.article-author {
  font-weight: 600;
  color: #333;
}

.article-date {
  color: #666;
}

.article-tag {
  background: #f0f0f0;
  padding: 0.3rem 0.8rem;
  border-radius: 3px;
  font-size: 0.8rem;
  text-transform: lowercase;
  color: #666;
}

.article-content {
  line-height: 1.7;
  font-size: 1.1rem;
  color: #333;
}

.article-lead {
  font-size: 1.2rem;
  line-height: 1.6;
  color: #444;
  margin-bottom: 2rem;
  font-weight: 400;
}

.article-content p {
  margin-bottom: 1.5rem;
  color: #333;
}

.article-content h2 {
  font-size: 1.8rem;
  margin: 2.5rem 0 1.5rem 0;
  color: #1a1a1a;
  font-weight: 600;
  line-height: 1.3;
}

.article-navigation {
  text-align: center;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid #eee;
}

@media(max-width:600px) {
  .article-container {
    padding: 5rem 1rem 3rem;
  }
  
  .article-header h1 {
    font-size: 2.2rem;
  }
  
  .article-subtitle {
    font-size: 1.1rem;
  }
  
  .article-byline {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.8rem;
  }
  
  .article-content h2 {
    font-size: 1.5rem;
  }
  
  .article-content p,
  .article-lead {
    font-size: 1rem;
  }
}