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

:root {
  --bg: #d0d5c0;
  --base-variant: #f2f3f4;
  --text: #4d371f;
  --text-secondary: #7e6c57;
  --border: #c4c0a6;
  --hover: #b1bc6e;
}

[data-theme="dark"] {
  --bg: #c4c0a6;
  --base-variant: #28272a;
  --text: #ffffff;
  --text-secondary: #ece7e1;
  --border: #929676;
  --hover: #b1bc6e;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background 0.3s ease, color 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 40px 20px;
}

.container {
  background-color: var(--base-variant);
  max-width: 900px;
  width: 100%;
  padding: 60px 40px;
  border-radius: 8px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.1rem;
}

h1 {
  font-size: 1.5rem;
  font-weight: 600;
}

.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  width: 40px;
  height: 40px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.theme-toggle:hover {
  background: var(--hover);
}

.intro {
  margin-bottom: 1rem;
}

.intro p {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.intro a {
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}

.social-links {
  display: flex;
  gap: 15px;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.social-links a {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  transition: all 0.2s ease;
}

.social-links a:hover {
  background: var(--accent);
  color: var(--hover);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.social-links a svg {
  width: 1rem;
  height: 1rem;
}

nav {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

nav button {
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 20px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

nav button:hover,
nav button.active {
  background: var(--hover);
  color: var(--base-variant);
}

.section {
  display: none;
}

.section.active {
  display: block;
}

.experience-list,
.projects-list {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.experience-item,
.project-item {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.experience-header,
.project-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 20px;
  flex-wrap: wrap;
}

.experience-title,
.project-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0;
}

.experience-date {
  color: var(--text-secondary);
  font-size: 0.9rem;
  white-space: nowrap;
}

.experience-description,
.project-description {
  color: var(--text-secondary);
  line-height: 1.6;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.tech-tags span:not(:last-child)::after {
  content: " /";
  margin-left: 8px;
}

.project-links {
  display: flex;
  gap: 15px;
  font-size: 0.9rem;
}

.project-links a {
  color: var(--text-secondary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: color 0.2s ease;
}

.project-links a:hover {
  color: var(--text);
}

.project-links a::after {
  content: "↗";
  font-size: 0.8rem;
}

footer {

  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text);
  font-size: 0.9rem;
}

.green-badge::before {
  content: "🌱 ";
}

@media (max-width: 768px) {
  body {
      padding: 20px 10px;
  }

  .container {
      padding: 40px 20px;
  }

  h1 {
      font-size: 1.6rem;
  }

  .tech-items {
      grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
      gap: 15px;
  }
}