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

nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.5); /* Transparent background */
    backdrop-filter: blur(3px); /* Optional for extra style */
}

nav .logo {
    color: white;
    font-family: "Aladin", system-ui;
    font-size: 28px;
    font-weight: bold;
}

nav .nav-links {
    list-style: none;
    display: flex;
    gap: 26px;
}

nav .nav-links a {
    text-decoration: none;
    color: #fff;
    font-family: "Libre Baskerville", serif;
    font-size: 18px;
    transition: 0.4s;
}

nav .nav-links a:hover {
    color: #05fc01;
}



/* Reset & Global Settings */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Open Sans', Arial, sans-serif;
    line-height: 1.8;
    color: white;
    background-color:black;
}
/* Home Section */
#home {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-content: center;
    padding: 2rem,4rem;
    background-color: black;
}

/* Grid Layout for home */
.home-grid-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

/* Text Content  for home*/
.text-container h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: white;
}

.text-container .role {
    color:#41df15;
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.text-container .description {
    margin-bottom: 2rem;
    color: #666161;
    font-size: 1rem;
    max-width: 600px;
}

/* Buttons Styling for home */
.buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.btn {
    text-decoration: none;
    padding: 12px 25px;
    border-radius: 5px;
    font-weight: 600;
    display: inline-block;
    transition: 0.3s;
}

.btn.primary {
    background-color:black;
    border: 2px solid #41df15;
    color: #fff;
}

.btn.primary:hover {
    background-color: #41df15;
}

.btn.secondary {
    border: 2px solid #41df15;
    color: white;
}

.btn.secondary:hover {
    background-color: #41df15;
    color: #fff;
}

/* Image Styling for home*/
.image-container {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.profile-pic {
    width: 100%;
    max-width: 350px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

#aboutme {
    min-height: 100vh;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding-top: 5rem;
    background-color: black;
}

/* Screen 2 layout */
.Screen2 {
    display: grid;
    grid-template-columns: 65% 35% ;
    gap: 3rem;
    margin-left: 1rem;
}

#aboutme_content{
    grid-column: 1;
}
#timeline {
    grid-column: 2;
}

/* Content Styling */
#aboutme_content h2, 
#aboutme_content h3 {
    color: #05f81e;
    margin-bottom: 1rem;
    font-weight: 700;
}

#aboutme_content p {
    margin-bottom: 1rem;
    color: #ffffff;
    font-size: 1rem;
    text-align: justify;
}

/* Timeline Section */

#timeline h2 {
    color: #05f81e;
    margin-bottom: 1rem;
    font-weight: 700;
}

.timeline-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    
}

.timeline-item {
    background-color: black;
    padding: 1.5rem;
    border-radius: 10px;
    border-left: 10px solid #3498db;
    
}

.timeline-item h4 {
    color: #2980b9;
    margin-bottom: 0.5rem;
    font-weight: bold;
}
.timeline-item p {
    color: #ffffff;
    font-size: 0.95rem;
}

/* Research Section */

#research {
    min-height: 100vh;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding-top: 5rem;
    background-color: black;
}

.Screen3 {
    display: grid;
    grid-template-columns: 60% 40% ;
    gap: 2rem;
    margin-left: 1rem;
}
#research_content{
    grid-column: 1;
    
}
#summaryimage {
    grid-column: 2;
    align-content: center;
}
#summaryimage img {
    width: 95%; /* or something like 80% if you want it smaller */
    height: 70%; /* keeps the aspect ratio */
    border-radius: 10px; /* optional: adds rounded corners */
    box-shadow: 0 4px 20px rgba(0, 255, 0, 0.4); /* greenish glow shadow */
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

#summaryimage img:hover {
    transform: scale(1.05); /* slight zoom on hover */
    box-shadow: 0 8px 30px rgba(0, 255, 0, 0.6); /* brighter glow on hover */
}

#research_content h2, 
#research_content h3 {
    color: #05f81e;
    margin-bottom: 1rem;
    font-weight: 700;
}
#research_content p,
#research_content ul{
    margin-bottom: 1rem;
    color: #ffffff;
    font-size: 1rem;
    text-align: justify;
}

/* Skill section Screen4 */

#skills {
    min-height: 100vh;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    background-color: black;
}
#Screen4 {
    display: grid;
    grid-template-columns: 50% 50%;
    gap: 2rem;
    margin-left: 1rem;
    margin-right: 1rem;
}

#Screen4 h2 {
    color: #05f81e;
    margin-bottom: 1rem;
    font-weight: 700;
}

#Screen4 ul{
    margin-bottom: 1rem;
    color: #ffffff;
    font-size: 1.05rem;
    text-align: justify;
    
}
#Screen4 ul li {
    margin-bottom: 1rem; /* or adjust to 0.5rem for tighter spacing */
    line-height: 1.9; /* optional: improves readability */
}




header {
    background: #1e1e1e; /* Dark header background */
    color: #ffffff; /* Light header text */
    padding: 10px 0;
    text-align: center;
}



section {
    padding: 20px;
}

#publication-contact-wrapper {
    min-height: 100vh;
    background-color: #000;
    color: #fff;
    padding: 4rem 2rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

#publications {
    padding-top: 2rem;
}

#publications h2,
#contact h2 {
    color: #05f81e;
    font-size: 2rem;
    text-align: center;
}

#publications ul {
    list-style: none;
    padding: 0;
    max-width: 1000px;
    margin: 0 auto;
}

#publications li {
    background-color: #1a1a1a;
    margin-bottom: 1.5rem;
    padding: 1rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(5, 248, 30, 0.2);
    transition: 0.3s ease;
    line-height: 1.6;
}

#publications li:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(5, 248, 30, 0.4);
}

#publications a {
    display: block;
    margin-top: 0.5rem;
    color: #05f81e;
    text-decoration: none;
    word-wrap: break-word;
}

#publications a:hover {
    text-decoration: underline;
}

#contact {
    text-align: center;
}

.social-icons a {
    margin: 0 0.5rem;
    font-size: 1.5rem;
    color:white;
}

.social-icons a:hover {
    color: #05f81e;
}

footer {
    text-align: center;
    font-size: 0.9rem;
    border-top: 1px solid #222;
    color: #888;
    padding: 0%;
}


:root {
    --bg-color: white;
    --text-color: black;
    --nav-bg: rgba(255, 255, 255, 0.6);
  }
  
  body.dark-mode {
    --bg-color: black;
    --text-color: white;
    --nav-bg: rgba(0, 0, 0, 0.6);
  }
  
  body {
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
  }
  
  nav {
    background-color: var(--nav-bg);
  }
  
  /* Toggle button */
  .theme-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  
  .toggle-label {
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 18px;
    color: var(--text-color);
  }
  
  #toggle-checkbox {
    display: none;
  }
  
 

/* Responsive Navigation */
@media (max-width: 768px) {
    nav {
      flex-direction: column;
      padding: 15px;
      align-items: flex-start;
    }
  
    .nav-links {
      flex-direction: column;
      gap: 10px;
      width: 100%;
    }
  
    .home-grid-container {
      flex-direction: column;
      padding: 20px;
      text-align: center;
    }
  
    .text-container, .image-container {
      width: 100%;
    }
  
    .profile-pic {
      width: 70%;
      max-width: 250px;
      margin-top: 20px;
    }
  }
  
  /* Adjust sections for smaller screens */
  @media (max-width: 480px) {
    h1 {
      font-size: 24px;
    }
  
    h2 {
      font-size: 20px;
    }
  
    .btn {
      font-size: 14px;
      padding: 8px 14px;
    }
  }