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

/* Global CSS Variables */
:root {
  --primary-color:  hwb(204 20% 50%);
  --hover-color: hwb(204 16% 10%);
  --bg-color: #333;
  --text-color: #333;
  --header-bg: #2C3E50;
  --header-text: #fff;
  --button-bg: #3498db;
  --button-hover: #2980b9;
}

/* Base Styles */
body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  background-color: var(--bg-color);
  color: var(--text-color);
  padding: 20px;
}

/* Container */
.container {
  max-width: 900px;
  margin: 0 auto;
}

/* Header */
header {
  background-color: var(--header-bg);
  color: var(--header-text);
  padding: 20px;
  border-radius: 8px;
  margin-bottom: 20px;
}

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

.profile-pic {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--header-text);
}

/* Navigation */
nav {
  margin-top: 20px;
}

nav ul {
  display: flex;
  list-style: none;
  padding: 0;
}

nav li {
  margin-right: 20px;
}

nav a {
  color: var(--header-text);
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s ease;
}

nav a:hover,
nav a.active {
  color: var(--button-bg);
}

/* Tab Containers for Main Content */
.tab-content {
  background-color: #fff;
  padding: 20px;
  margin: 20px auto;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  display: none; /* Hidden by default */
}

.tab-content.active {
  display: block;
}

/* Footer */
footer {
  background-color: var(--header-bg);
  color: var(--header-text);
  text-align: center;
  padding: 20px;
  margin-top: 20px;
  border-radius: 8px;
}

/* Headings */
h1, h2, h3 {
  margin-bottom: 10px;
}

/* Buttons */
button {
  background-color: var(--button-bg);
  color: var(--header-text);
  border: none;
  padding: 10px 15px;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

button:hover {
  background-color: var(--button-hover);
}

/* Global Anchor Styling */
a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.8s ease;
}

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

/* Responsive Adjustments */
@media (max-width: 600px) {
  .header-container {
    flex-direction: column;
    text-align: center;
  }
  
  nav ul {
    flex-direction: column;
    align-items: center;
  }
  
  nav li {
    margin: 10px 0;
  }
}

/* Contact List */
ul.contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

ul.project-features {
  padding-left: 20px;
}

/* End of CSS */