/* Basic reset & typography */
body {
    margin: 0;
    padding: 0;
    font-family: Trebuchet MS, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fdfdfd;
}
a {
    color: #0066cc;
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}

/* Layout */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 1rem;
}
header, footer {
    text-align: center;
    padding: 0rem 0;
}
header h1 {
    margin-bottom: 0.2rem;
}
header p {
    margin-top: 0;
    color: #808080;
    margin: 0.1rem 0;
}

nav {
    text-align: center;
    margin: 1rem 0;
}
nav a {
    color: #b15fa2;       /* your custom color */
    margin: 0 0.8rem;
    font-weight: bold;
}
nav a:hover {
    color: #680088db;       /* hover color */
    text-decoration: underline;
}

section {
    margin-bottom: 2rem;
}
h2 {
    border-bottom: 2px solid #eee;
    padding-bottom: 0.3rem;
    color: #222;
}

.pub-list, .project-list {
    list-style: decimal;
    padding-left: 1.5rem;
}
.pub-list li, .project-list li {
    margin-bottom: 0.8rem;
}

@media (max-width: 600px) {
    .container {
    padding: 0.8rem;
    }
}

.icon {
    display: inline-block;
    fill: currentColor;
    width: 1em;
    height: 1.1em;
    line-height: 1;
    position: relative;
    top: -0.1em;
    vertical-align: middle;
    font-size: 1em;    /* size of icons */
    transition: opacity 0.2s; /* smooth hover effect */
}
.social-icons {
    .fa {
        color: #000;
    }
    .fa-linkedin,
    .fa-linkedin-square {
        color: #007bb6;
    }
    .fa-github,
    .fa-github-alt,
    .fa-github-square {
        color: #171516;
    }
    .fa-x-twitter,
    .fa-x-twitter-square {
        color: #000;
    }
    .fa-google-scholar {
        color: #4285F4;
    }
}
.social-icons a {
  margin: 0 4px;       /* horizontal space between icons */
}
.social-icons a:hover .icon {
  opacity: 0.75;       /* slight dim on hover */
}
.theme-icons {
    .fa {
        color: #000;
    }
    .fa-sun {
        color: #f39c12;
    }
    .fa-moon {
        color: #ffffffa5;
    }
}


.about-section {
  display: flex;
  align-items: flex-start;   /* align top of text and photo */
  gap: 30px;                 /* space between text and photo */
  margin-bottom: 2rem;
  flex-wrap: wrap;           /* allows photo to move below text on small screens */
}

.about-text {
  flex: 1;                   /* text takes remaining space */
}

.about-photo {
  flex: 0 0 180px;           /* fixed width for photo */
}

.profile-photo {
  width: 100%;               /* fill the photo container */
  height: auto;
  object-fit: cover;         /* crop to fit nicely */
  content: url('images/profile.jpg'); /* default/light mode photo */
}

/* Change profile photo for dark mode */
body.dark-mode .profile-photo {
  width: 100%;
  height: auto;
  object-fit: cover;         /* crop to fit nicely */
  content: url('images/profile-dark.jpg');
}

:root {
  --bg-color: #fdfdfd;
  --text-color: #333;
  --link-color: #0066cc;
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: all 0.3s ease;
}

a {
  color: var(--link-color);
}

/* Dark theme */
body.dark-mode {
  --bg-color: #1e1e1e;
  --text-color: #f0f0f0;
  --link-color: #4ea8ff;
}

body.dark-mode h2 {
  color: #f0f0f0;
  border-bottom-color: #444;
}

/* Theme selector styling */
.theme-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  width: 35px;
  height: 35px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 1000;
  background-color: #f0f0f0;
  border-radius: 6px;
  padding: 6px;
  transition: background-color 0.3s ease;
}

.theme-toggle:hover {
  background-color: #e0e0e0;
}

body.dark-mode .theme-toggle {
  background-color: #333;
}

body.dark-mode .theme-toggle:hover {
  background-color: #444;
}


@media (max-width: 600px) {
  .container {
    padding: 0.8rem;
  }
  
  /* Stack about section on mobile */
  .about-section {
    flex-direction: column;
    align-items: center;
  }
  
  .about-photo {
    flex: 0 0 150px;      /* slightly smaller on mobile */
    max-width: 150px;
  }
  
  /* Better nav spacing on mobile */
  nav {
    font-size: 0.9rem;
  }
  
  nav a {
    margin: 0 0.4rem;
    display: inline-block;
  }
  
  /* Fix publication year headings */
  .pub-list p {
    margin-left: 0 !important;
  }
  
  /* Move theme toggle on mobile */
  .theme-toggle {
    top: 0.5rem;
    right: 0.5rem;
    width: 30px;
    height: 30px;
  }
  
  .theme-dropdown .selected,
  .theme-dropdown .option {
    padding: 4px 8px;
  }
}