:root {
  --primary: #6aa2f7;      /* Gray Blue */
  --accent: #3aa17e;       /* Teal Green */
  --text: #333333;         /* Charcoal */
  --background: #333333;   /* Charcoal */
  --secondary-bg: #f7f7f7; /* Light Taupe */
}

body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--background);
  color: var(--text);
  line-height: 1.6;
  padding: 2rem;
}

header {
  background-color: var(--primary);
  color: var(--background);
  padding: 1.5rem;
  text-align: center;
  border-radius: 8px;
  margin-bottom: 5px;
}

h1, h2 {
  margin: 0.5rem 0;
}

section {
  background-color: var(--secondary-bg);
  padding: 1.5rem;
  margin-top: 5px;
  border-radius: 8px;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.project, .contact, .about, .info, .mycoculture, .internship {
  margin-bottom: 1.5rem;
  margin-left: 30px;
}

footer {
  margin-top: 2rem;
  text-align: center;
  font-size: 0.9rem;
  color: #777;
}

/* Screenshots */
#projecticon, #screenshot1, #screenshot2, #screenshot3 {
  margin: 10px 15px 0 15px;
}

#subnote {
  font-size: small;
  padding: 0;
}

/* Navigation Styles */
.navigation,
#main-nav {
  background-color: var(--background);
  border-radius: 8px;
  margin-bottom: 1rem;
}

.navigation ul,
#main-nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.navigation li,
#main-nav li {
  margin: 0;
}

.navigation li a,
#main-nav li a {
  display: block;
  padding: 10px 20px;
  color: var(--primary);
  font-weight: bold;
  text-decoration: none;
  transition: background-color 0.3s ease;
}

.navigation li a:hover,
#main-nav li a:hover {
  background-color: black;
  color: white;
  border-radius: 4px;
}

.content-wrapper {
  margin-right: auto;
  margin-left: auto;
  max-width: 960px;
}

.cert-group {
  margin-bottom: 2rem;
}

.cert-group h3 {
  color: var(--primary);
  margin-bottom: 0.5rem;
  text-align: center;
}

.cert-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.cert-grid img {
  width: 180px;
  height: auto;
  max-width: 100%;
  border: 1px solid #ccc;
  border-radius: 6px;
  box-shadow: 1px 2px 4px rgba(0,0,0,0.2);
  transition: transform 0.2s ease;
}

.cert-grid img:hover {
  transform: scale(1.03);
}