/* Reset and base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  background: #f9fafb;
  color: #333;
  line-height: 1.6;
  font-size: 16px;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.header {
  background-color: #1f2937; /* dark slate */
  color: white;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 6px rgb(0 0 0 / 0.1);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

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

.nav a {
  color: white;
  margin-left: 2rem;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
}

.logo a {
  margin-left: 0;
}

.nav a:hover {
  color: #3b82f6; /* blue-500 */
}

/* Hero */
.hero {
  background: linear-gradient(90deg, #3b82f6 0%, #2563eb 100%);
  color: white;
  padding: 5rem 1.5rem;
  text-align: center;
}

.hero h1 {
  font-size: 2.75rem;
  font-weight: 700;
  margin-bottom: 1rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.btn-primary {
  background-color: #fbbf24; /* yellow-400 */
  color: #1f2937;
  font-weight: 700;
  padding: 0.75rem 2rem;
  border-radius: 9999px;
  text-decoration: none;
  transition: background-color 0.3s ease;
}

.btn-primary:hover {
  background-color: #f59e0b; /* yellow-500 */
}

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

.section h2 {
  font-size: 2rem;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 2rem;
  text-align: center;
}

/* About */
.about p {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.125rem;
  color: #4b5563; /* gray-600 */
  text-align: center;
}

/* Leadership */
.leadership .executives {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
}

.executive-card {
  background: white;
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgb(0 0 0 / 0.05);
  width: 180px;
  text-align: center;
  transition: transform 0.3s ease;
}

.executive-card:hover {
  transform: translateY(-5px);
}

.executive-photo {
  width: 120px;
  height: 120px;
  object-fit: cover;
  border-radius: 50%;
  margin-bottom: 1rem;
  background-color: #e5e7eb; /* light gray placeholder */
}

/* Case Studies */
.case-studies .case-study {
  background: white;
  margin: 1rem auto;
  max-width: 800px;
  padding: 1.5rem 2rem;
  border-left: 6px solid #3b82f6;
  box-shadow: 0 2px 8px rgb(0 0 0 / 0.05);
  border-radius: 8px;
  transition: box-shadow 0.3s ease;
}

.case-studies .case-study:not(:last-child) {
  margin-bottom: 1.5rem;
}

.case-studies .case-study:hover {
  box-shadow: 0 6px 15px rgb(59 130 246 / 0.3);
}

.case-studies h3 {
  margin-bottom: 0.5rem;
  color: #1e40af; /* blue-900 */
}

/* Testimonials */
.testimonials blockquote {
  max-width: 700px;
  margin: 2rem auto;
  font-style: italic;
  color: #374151; /* gray-700 */
  position: relative;
  padding-left: 1.5rem;
  border-left: 4px solid #2563eb;
}

.testimonials footer {
  margin-top: 0.5rem;
  font-weight: 600;
  color: #1f2937;
  text-align: right;
}

/* Contact */
.contact {
  background: white;
  margin: 1rem auto;
  max-width: 800px;
  padding: 1.5rem 2rem;
  border-left: 6px solid #3b82f6;
  box-shadow: 0 2px 8px rgb(0 0 0 / 0.05);
  border-radius: 8px;
  transition: box-shadow 0.3s ease;
  text-align: center;
}

.contact address {
  text-align: left;
  display: inline-block;
}

/* Footer */
.footer {
  background-color: #1f2937;
  color: white;
  padding: 1.5rem 0;
  text-align: center;
  font-size: 0.9rem;
  margin-top: 4rem;
}

.mobile {
  display: none;
}
h1.mobile {
  color: #333;
}
.desktop {
  display: block;
}

/* Responsive */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
  }
  .nav {
    margin-top: 1rem;
  }
  .nav a {
    margin-left: 0;
    margin-right: 1.5rem;
  }
  .leadership .executives {
    flex-direction: column;
    align-items: center;
  }
  .executive-card {
    width: 90%;
  }
  .mobile {
    display: revert;
  }
  .desktop {
    display: none;
  }
}

/* When viewport is 768px or wider, switch */
@media (min-width: 768px) {
  .mobile-logo {
    display: none;
  }
  .desktop-logo {
    display: block;
  }
}

a[href^="mailto"]::before {
  content: "📧 ";
}

a[href^="tel"]::before {
  content: "📞 ";
}