:root {
  --bg: #e7e4e4;
  --text: #151d27; /* darker for better readability */
  --muted: #5b606b;
  --link: #283e7c; /* more professional blue */
  --card: #f8fafc;
  --border: #e2e8f0;
  --accent: #33384022;
  --header-bg: #f1f5f9;
  --a-link: #d4d4d4;
}

[data-theme="dark"] {
  --bg: #0a1020;
  --text: #f1f5f9;
  --muted: #a7b4c7;
  --link: #fbfbfb;
  --card: #131e2f;
  --border: #1f2a3a;
  --accent: #132542;
  --header-bg: #131e2f;
  --a-link: #193869;
}
html,
body {
  height: 100%;
}
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu,
    Cantarell, Noto Sans, "Helvetica Neue", Arial, "Apple Color Emoji",
    "Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 20px;
}
header {
  display: flex;
  align-items: center;
  gap: 25px;
  position: relative;
  margin-top: 1rem;
  background: var(--header-bg);
  padding: 20px;
  border-radius: 16px;
  border: 1px solid var(--border);
}

header img.full-height {
  width: auto;
  max-width: 150px;
  height: 200px;
  object-fit: cover;
  object-position: center;
  border: 2px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: box-shadow 0.3s ease;
}

header img.full-height:hover {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.title {
  flex: 1;
}

h1 {
  font-size: 1.6rem;
  margin: 0 0 2px;
  font-weight: 600;
  font-family: "Lexend", sans-serif;
  color: var(--text);
}
.subtitle {
  color: var(--muted);
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: 4px;
}
.affiliation {
  color: var(--muted);
  font-size: 0.95rem;
  font-style: italic;
  margin-bottom: 16px;
}
nav {
  margin-top: 20px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
nav a {
  font-family: "Lexend", sans-serif;
  color: var(--link);
  text-decoration: none;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--a-link);
  font-weight: 500;
  transition: all 0.2s ease;
  font-size: 0.9rem;
}
nav a:hover {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
  transform: translateY(-1px);
}
.cv-link {
  background: var(--accent) !important;
  border-color: var(--accent) !important;
}
.cv-link:hover {
  background: #2563eb !important;
  border-color: #2563eb !important;
}
.section {
  margin-top: 10px;
  padding-top: 1px;
}
h2 {
  font-family: "Lexend", sans-serif;
  font-size: 1.5rem;
  margin-bottom: 16px;
  color: var(--text);
  font-weight: 600;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 8px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  transition: box-shadow 0.2s ease;
}
.card:hover {
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}
.grid {
  display: grid;
  gap: 16px;
  margin-top: 16px;
}
@media (min-width: 720px) {
  .grid-cols-2 {
    grid-template-columns: 1fr 1fr;
  }
}
ul.clean {
  list-style: none;
  padding-left: 0;
}
ul.clean li {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
  margin-bottom: 16px;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  transition: all 0.2s ease;
}
ul.clean li:hover {
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  transform: translateY(-1px);
}
.meta {
  color: var(--muted);
  font-size: 0.92rem;
}
a {
  
  color: var(--link);
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 20px;
  background: var(--a-link);
  border: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 500;
}
.row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: 16px;
}
footer {
  margin: 40px 0 16px;
  font-size: 0.9rem;
  color: var(--muted);
}
.btn {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  text-decoration: none;
}
.right {
  margin-left: auto;
}

/* Simple theme toggle - minimal addition to your original design */
.theme-toggle {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer;
  font-size: 1rem;
  color: var(--muted);
  transition: all 0.2s ease;
}
.theme-toggle:hover {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

/* Responsive improvements */
@media (max-width: 768px) {
  header {
    flex-direction: column;
    text-align: center;
    gap: 16px;
  }

  header img {
    width: 120px;
    height: 140px;
    align-self: center;
  }

  .theme-toggle {
    position: static;
    align-self: flex-end;
    margin-top: 16px;
  }

  nav {
    justify-content: center;
  }
}