:root {
  --text-color-light: #000;
  --background-color-light: #fff;
  --text-color-dark: #fff;
  --background-color-dark: #424242;
  --accent-color: #2196F3;
  --button-bg: #2196F3;
  --button-bg-hover: #0056b3;
  --hero-overlay-color: rgba(0, 0, 0, 0.5);
  --transition-speed: 0.3s;
}

/* Dark mode override for CSS-variabler */
.dark-mode {
  --background-color-light: #424242;
  --text-color-light: #fff;
}

/* Dark mode toggle slider styling */
.switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 34px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  transition: background-color 0.4s, box-shadow 0.4s;
  border-radius: 34px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 26px;
  width: 26px;
  left: 4px;
  bottom: 4px;
  background-color: #fff;
  transition: transform 0.4s;
  border-radius: 50%;
}

.switch input:checked + .slider {
  background-color: var(--accent-color);
  box-shadow: 0 0 10px var(--accent-color);
}

.switch input:checked + .slider:before {
  transform: translateX(26px);
}

.slider:hover {
  box-shadow: 0 0 10px var(--accent-color);
}

body {
  font-family: 'Roboto', Arial, sans-serif;
  margin: 0;
  padding-top: 100px;
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
  background-color: var(--background-color-light);
  color: var(--text-color-light);
}

.dark-mode {
  background-color: var(--background-color-dark);
  color: var(--text-color-dark);
}

/* Header */
.primary-header {
  border-bottom: 2px solid var(--accent-color);
  padding: 10px;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--background-color-light);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  z-index: 100;
}

.github-icon-wrapper {
  position: absolute;
  top: 10px;
  right: 60px;
}

#myBtn {
  display: none;
  position: fixed;
  bottom: 70px;
  right: 30px;
  z-index: 1000;
  border: none;
  outline: none;
  background-color: var(--background-color-light);
  color: var(--text-color-light);
  cursor: pointer;
  padding: 15px;
  border-radius: 10px;
  transition: background-color var(--transition-speed) ease;
}

#myBtn:hover {
  background-color: #555;
}

nav ul {
  list-style: none;
  padding: 0;
  text-align: center;
  margin: 0;
}

nav li {
  display: inline;
  margin: 15px;
}

nav a {
  text-decoration: none;
  color: var(--text-color-light);
  font-weight: bold;
  transition: color var(--transition-speed) ease;
}

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

section {
  scroll-margin-top: 120px;
}

/* Hero Section */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh; 
  background: url('images/hero-bg.jpg') no-repeat center center/cover;
  color: #fff;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--hero-overlay-color);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Generelle knappestiler */
.btn {
  display: inline-block;
  margin-top: 20px;
  padding: 12px 24px;
  background-color: var(--button-bg);
  color: #fff;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color var(--transition-speed) ease;
}

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

/* Projects navigation */
.project-tabs {
  text-align: center;
  margin-bottom: 20px;
}

.tab-btn {
  background: none;
  border: 2px solid var(--accent-color);
  color: var(--accent-color);
  padding: 10px 20px;
  margin: 0 5px;
  cursor: pointer;
  transition: background-color var(--transition-speed);
}

.tab-btn.active, .tab-btn:hover {
  background-color: var(--accent-color);
  color: #fff;
}

.projects-container {
  display: none;
}

.projects-container.active {
  display: block;
}

/* Card */
.card-container {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  margin-top: 40px;
}

.card {
  background: var(--background-color-light);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  border-radius: 8px;
  overflow: hidden;
  width: 300px;
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}

.card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.card-content {
  padding: 20px;
}

.card-content h2 {
  margin-bottom: 10px;
  font-size: 24px;
}

.card-content p {
  font-size: 16px;
  line-height: 1.5;
}

.card-content a {
  font-size: 16px;
  color: var(--accent-color);
  text-decoration: none;
}

.card-content a:hover {
  text-decoration: underline;
}

/* Contact form */
#contact {
  max-width: 600px;
  margin: 40px auto;
  padding: 40px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  background-color: var(--background-color-light);
  border-radius: 8px;
}

#contact h2 {
  text-align: center;
  margin-bottom: 20px;
  font-size: 28px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  font-weight: bold;
  display: block;
  margin-bottom: 5px;
  font-size: 16px;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
  font-size: 16px;
  transition: border-color var(--transition-speed) ease;
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group textarea:focus {
  border-color: var(--accent-color);
  outline: none;
}

button[type="submit"] {
  background-color: var(--button-bg);
  color: white;
  padding: 15px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  width: 100%;
  font-size: 18px;
  transition: background-color var(--transition-speed) ease;
}

button[type="submit"]:hover {
  background-color: var(--button-bg-hover);
}

/* Footer */
footer {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 40px;
  border-top: 2px solid var(--accent-color);
  padding: 20px;
  flex-direction: column;
}

/* About me */
.about-me {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--background-color-light);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  border-radius: 8px;
  padding: 40px;
  margin: 40px;
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.about-me:hover {
  transform: translateY(-10px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}

.about-me img {
  width: 150px;
  height: 150px;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid var(--accent-color);
  transition: transform var(--transition-speed) ease;
}

.about-me img:hover {
  transform: rotate(10deg);
}

.about-me p {
  flex: 1;
  font-size: 18px;
  line-height: 1.7;
}

/* Tech Stack */
.tech-stack {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: var(--background-color-light);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  border-radius: 8px;
  padding: 40px;
  margin: 40px;
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.tech-stack i {
  font-size: 60px;
  transition: transform var(--transition-speed) ease;
}

.tech-stack i:hover {
  transform: scale(1.2);
}

/* Media queries for responsiveness */
@media (max-width: 768px) {
  body {
    padding-top: 60px;
  }
  
  .about-me {
    flex-direction: column;
    text-align: center;
  }
  
  .about-me img {
    margin-bottom: 20px;
  }
  
  .tech-stack i {
    font-size: 40px;
  }
}

.projects-section h2 {
  text-align: center;
}