.toggle-btn svg {
  fill: var(--text);
  transition: fill 0.3s ease;
}

.toggle-btn .icon-dark {
  display: inline;
}

.toggle-btn .icon-light {
  display: none;
}

[data-theme='dark'] .toggle-btn .icon-dark {
  display: none;
}

[data-theme='dark'] .toggle-btn .icon-light {
  display: inline;
}

.toggle-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--tag);
  border: none;
  padding: 0;             
  border-radius: 50%;     
  width: 44px;            
  height: 44px;
  cursor: pointer;
  font-size: 1.5rem;
  color: var(--text);
  transition: background 0.3s ease, color 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

:root {
  --bg-light: #f4f4f4;
  --text-light: #111;
  --accent-light: #007acc;
  --card-light: #ffffff;
  --tag-light: #e0e0e0;

  --bg-dark: #121212;
  --text-dark: #e0e0e0;
  --accent-dark: #90caf9;
  --card-dark: #1f1f1f;
  --tag-dark: #2a2a2a;
}

[data-theme='light'] {
  --bg: var(--bg-light);
  --text: var(--text-light);
  --accent: var(--accent-light);
  --card: var(--card-light);
  --tag: var(--tag-light);
}

[data-theme='dark'] {
  --bg: var(--bg-dark);
  --text: var(--text-dark);
  --accent: var(--accent-dark);
  --card: var(--card-dark);
  --tag: var(--tag-dark);
}

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

body {
  font-family: Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background 0.3s ease, color 0.3s ease;
}

header {
  background-color: var(--card);
  padding: 40px 20px;
  text-align: center;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

header h1 {
  font-size: 3rem;
}

header p {
  font-size: 1.2rem;
  margin-top: 10px;
}

.contact a {
  color: var(--accent);
  text-decoration: none;
  margin: 0 8px;
}

.contact a:hover {
  text-decoration: underline;
}

.container {
  max-width: 900px;
  margin: auto;
  padding: 40px 20px;
}

.section {
  background: var(--card);
  padding: 25px;
  border-radius: 10px;
  margin-bottom: 30px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

h2 {
  border-bottom: 1px solid #666;
  margin-bottom: 15px;
  padding-bottom: 5px;
  color: var(--accent);
}

ul {
  padding-left: 20px;
}

.tag {
  display: inline-block;
  background: var(--tag);
  padding: 5px 10px;
  border-radius: 5px;
  margin: 3px 5px 3px 0;
  font-size: 0.9rem;
}

.toggle-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--tag);
  border: none;
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text);
  transition: background 0.3s ease;
}

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

.timeline-item {
  background: var(--card);
  padding: 20px;
  margin-bottom: 20px;
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  opacity: 1; 
  transform: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.collapse-btn {
  background: var(--tag);
  color: var(--text);
  border: none;
  padding: 10px 15px;
  width: 100%;
  text-align: left;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  border-radius: 5px;
  transition: background 0.3s ease;
}

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

.collapse-content {
  display: none;
  padding: 10px 20px;
  background: var(--card);
  border-left: 4px solid var(--accent);
  margin-top: 5px;
  border-radius: 5px;
}


.social-links {
  display: flex;
  gap: 30px;  
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}


.social-links a {
  color: inherit; 
  font-size: 1.5rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}


.social-links a[title="Email"] {
  color: #d14836;
}

.social-links a[title="LinkedIn"] {
  color: #0a66c2;
}

.social-links a.resume-btn {
  color: #28a745;
  font-size: 1.25rem;
  font-weight: 600;
}


@media (max-width: 600px) {
  header h1 {
    font-size: 2rem;
  }

  .section {
    padding: 20px;
  }

  .toggle-btn {
    top: 10px;
    right: 10px;
  }
}