/* General Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Poppins", sans-serif;
  }
  


  body {
    background-color: #0d0d0d;
    color: white;
    font-family: 'Poppins', sans-serif;
    margin: 0;
    padding: 0;
    flex-direction: column; 
    display: flex;
  }

  /* Header Styles */
  header {  
    display: flex;
    backdrop-filter: blur(10px);
    justify-content: space-between;
    align-items: center;
    padding: 15px 40px;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: 0.3s;
  }
  
  header #particles{
    position: absolute;
    width: 100%;
    height: 100vh; /* Full-screen background */
    top: 0;
    left: 0;
    z-index: -1; /* Push it behind other content */
    pointer-events: none; /* Prevents blocking clicks */
}

@keyframes pulse {
    0%, 100%{
        opacity: 0;
    }
    15%, 45%{
        opacity: 1;
    }
    60%{
        box-shadow: 0 0 0 30px rgba(255, 255, 255, 0.1);
        opacity: 0;
    }
}
  .content span{
    -webkit-text-fill-color: transparent;
    -webkit-text-stroke: 1px #fff;
    text-shadow: 2px 2px 10px rgba(255, 255, 255, 0.3);
    
}

.blur{
    position: absolute;
    box-shadow: 0 0 1000px 50px #00aaff;
    z-index: 1; 
    pointer-events: none; 

    
}
.logo-container {
    display: flex;
    align-items: center;
    gap: 15px; /* Space between image and text */
    width: 50%;
}

.logo {
    width: 70px; /* Adjust size as needed */
}

.logo-text {
    font-size: 22px; /* Slightly larger for better visibility */
    color: white;
    font-weight: 900; /* Extra bold for a strong impact */
    font-family: 'Poppins', sans-serif; /* Clean and modern font */
    letter-spacing: 1px; /* Slight spacing for readability */
    text-transform: uppercase; /* Professional and bold appearance */
}



 nav{
    display: flex;
    align-items: center;
    justify-content: flex-end; /* Moves links to the right */
    gap: 15px;
    width: 100%;
 }

  nav a {
    color: #ffffff;
    text-decoration: none;
    margin: 0 15px;
    font-size: 18px;
    transition: color 0.3s ease-in-out;
    justify-self: flex-end;
    
  }
  .nav-link {
    color: white;
    text-decoration: none;
    margin: 0 15px;
    font-size: 18px;
    transition: color 0.3s ease-in-out;
}

.nav-link:hover {
    color: #00aaff;
}

.nav-link.active {
    color: #0077cc;
}

  nav a:hover {
    color: #00aaff; /* Bright blue */
  }
  #hamburgerBtn{
    display: none;
  }
  /* Hero Section */
  .content {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    /* background: url("hero-bg.jpg") no-repeat center center/cover; */
    text-align: center;
    padding: 20px;
  }
  
  h1 {
    font-size: 48px;
    color: #00aaff; /* Bright blue */
    animation: fadeIn 1s ease-in-out;
  }
  
  p {
    font-size: 20px;
    margin: 10px 0;
    opacity: 0.9;
  }
  
  button, #loginBtn {
    background-color: #0077cc; /* Blue */
    border: none;
    padding: 12px 25px;
    font-size: 20px;
    cursor: pointer;
    border-radius: 8px;
    transition: 0.3s ease-in-out;
    margin-top: 15px;
  }
  
  button:hover,
  #loginBtn:hover {
    background-color: #0055aa;
    transform: scale(1.05);
  }
  
  /* Features Section */
  .container {
    text-align: center;
    padding: 50px 20px;
    display: flex;
    justify-content: center; /* Centers cards horizontally */
    gap: 60px; /* Adds space between cards */
    flex-wrap: wrap; /* Ensures responsiveness */
}

.feature-heading {
    width: 100%;
    font-size: 32px;
    margin-bottom: 20px;
    color: #ffffff  ;
}

  
  .card {
    background: #001d3d; /* Dark blue */
    padding: 1rem;
    border-radius: 12px;
    width: 300px;
    text-align: center;
    /* box-shadow: 0 4px 12px rgba(255, 255, 255, 0.2); */
    border: 2px solid transparent;
    transition: all 0.3s ease;
  }
  
  .card:hover {
    transform: translateY(-5px);
    border-color: #fff;
  }
  
  .card .icon {
    font-size: 55px;
  }
  
  .card h3 {
    color: #00aaff;
    margin-top: 10px;
  }
  
  .card a {
    display: inline-block;
    margin-top: 12px;
    color: #00aaff;
    text-decoration: none;
    font-weight: bold;
  }
  
  .card a:hover {
    color: #0055aa;
  }
  
  /* Footer */
  /* Footer Styles */
footer.container {
    backdrop-filter: blur(10px);
 
    display: flex;
    justify-content: center; /* Centers content horizontally */
    align-items: center;     /* Centers content vertically */
    width: 100%;
 
    bottom: 0; /* Ensures the footer is at the bottom of the page */
    padding: 10px;
}

footer .column {
    flex: 1;
    min-width: 250px;
    margin: 10px;
    text-align: center; /* Centers text inside each column */
}

footer .logo img {
    max-width: 80px;
    margin-bottom: 15px;
}

footer p {
    color: #ccc;
    font-size: 14px;
    margin-bottom: 15px;
}

footer .socials {
    display: flex;
    gap: 10px;
}

footer .socials a {
    color: #ccc;
    font-size: 22px;
    transition: color 0.3s ease-in-out;
}

footer .socials a:hover {
    color: #00aaff;
}

footer h4 {
    color: white;
    font-size: 18px;
    margin-bottom: 10px;
}

footer a {
    display: block;
    color: #ccc;
    font-size: 14px;
    text-decoration: none;
    margin-bottom: 8px;
    transition: color 0.3s ease-in-out;
}

footer a:hover {
    color: #00aaff;
}

/* nav a.active {
    color: #00aaff;
    font-weight: bold;
    border-bottom: 2px solid #00aaff;
    transition: 0.3s ease-in-out;
}
 */



.copyright{
    
    max-width: 1200px;
    margin: auto;
    padding: 1rem;  
    color: #fff;
    font-size: 0.8rem;
    text-align: center;
}



  /* Animations */
  @keyframes fadeIn {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  @media (max-width: 736px){
    nav, .logo-container{
        display: none;
    }
    .header {
        flex-direction: column;
        text-align: center;
    }
    footer {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
  }

/* About Section Styles */
.about-heading {
    text-align: center;
    color: var(--primary-text-clr);
    margin-bottom: 2rem;
    font-size: 2.5rem;
}

.about-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    width: 100%;
    padding: 20px;
}

.about-card {
    background: #001d3d;
    padding: 2rem;
    border-radius: 12px;
    width: 300px;
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.about-card:hover {
    transform: translateY(-5px);
    border-color: #00aaff;
}

.about-card .icon {
    font-size: 45px;
    margin-bottom: 1rem;
}

.about-card h3 {
    color: #00aaff;
    margin: 1rem 0;
    font-size: 1.5rem;
}

.about-card p {
    color: #ffffff;
    margin: 0.5rem 0;
    line-height: 1.6;
}

.about-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
    width: 100%;
}

.about-card ul li {
    color: #ffffff;
    margin: 0.8rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.about-card ul li:before {
    content: "•";
    color: #00aaff;
    position: absolute;
    left: 0;
}

.about-card.researcher {
    background: rgba(0, 170, 255, 0.1);
    border: 1px solid rgba(0, 170, 255, 0.2);
}

/* Hacker-themed developer card */
.about-card.developer {
    background: rgba(0, 255, 0, 0.1);
    border: 2px solid #00ff00;
    box-shadow: 0 0 15px rgba(0, 255, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.about-card.developer::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(0, 255, 0, 0.1),
        transparent
    );
    animation: glitch 3s linear infinite;
}

.about-card.developer h3 {
    color: #00ff00;
    text-shadow: 0 0 5px #00ff00;
    font-family: 'Courier New', monospace;
}

.about-card.developer p {
    color: #00ff00;
    text-shadow: 0 0 3px #00ff00;
    font-family: 'Courier New', monospace;
}

.about-card.developer .icon {
    color: #00ff00;
    text-shadow: 0 0 10px #00ff00;
}

/* Matrix-style animation */
@keyframes glitch {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

/* Researcher card styling */
.about-card.researcher {
    background: rgba(0, 170, 255, 0.1);
    border: 2px solid #00aaff;
    box-shadow: 0 0 15px rgba(0, 170, 255, 0.2);
}

.about-card.researcher h3 {
    color: #00aaff;
    text-shadow: 0 0 5px #00aaff;
    font-family: 'Arial', sans-serif;
}

.about-card.researcher p {
    color: #ffffff;
    text-shadow: 0 0 3px #00aaff;
    font-family: 'Arial', sans-serif;
}

.about-card.researcher .icon {
    color: #00aaff;
    text-shadow: 0 0 10px #00aaff;
}

/* Hover effects */
.about-card.developer:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 25px rgba(0, 255, 0, 0.3);
}

.about-card.researcher:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 25px rgba(0, 170, 255, 0.3);
}

@media (max-width: 768px) {
    .about-card {
        width: 100%;
        max-width: 300px;
    }
}

.about-card.researcher .researcher-link {
    color: #ffffff;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    display: inline-block;
}

.about-card.researcher .researcher-link:hover {
    color: #00aaff;
    transform: translateY(-2px);
}

.about-card.researcher .researcher-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -2px;
    left: 0;
    background-color: #00aaff;
    transition: width 0.3s ease;
}

.about-card.researcher .researcher-link:hover::after {
    width: 100%;
}

.about-card.developer .developer-link {
    color: #00ff00;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    display: inline-block;
    font-family: 'Courier New', monospace;
}

.about-card.developer .developer-link:hover {
    color: #00ff00;
    transform: translateY(-2px);
    text-shadow: 0 0 10px #00ff00;
}

.about-card.developer .developer-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -2px;
    left: 0;
    background-color: #00ff00;
    transition: width 0.3s ease;
    box-shadow: 0 0 5px #00ff00;
}

.about-card.developer .developer-link:hover::after {
    width: 100%;
}

/* Research Project Card (Graduation Cap - Gold) */
.about-card.research-project {
    background: rgba(255, 215, 0, 0.1);
    border: 2px solid #ffd700;
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.2);
}

.about-card.research-project h3 {
    color: #ffd700;
    text-shadow: 0 0 5px #ffd700;
}

.about-card.research-project p {
    color: #ffffff;
    text-shadow: 0 0 3px #ffd700;
}

.about-card.research-project .icon {
    color: #ffd700;
    text-shadow: 0 0 10px #ffd700;
}

.about-card.research-project:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 25px rgba(255, 215, 0, 0.3);
}

/* Research Purpose Card (Target - Red) */
.about-card.research-purpose {
    background: rgba(255, 0, 0, 0.1);
    border: 2px solid #ff0000;
    box-shadow: 0 0 15px rgba(255, 0, 0, 0.2);
}

.about-card.research-purpose h3 {
    color: #ff0000;
    text-shadow: 0 0 5px #ff0000;
}

.about-card.research-purpose ul li {
    color: #ffffff;
    text-shadow: 0 0 3px #ff0000;
}

.about-card.research-purpose ul li:before {
    color: #ff0000;
}

.about-card.research-purpose .icon {
    color: #ff0000;
    text-shadow: 0 0 10px #ff0000;
}

.about-card.research-purpose:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 25px rgba(255, 0, 0, 0.3);
}

/* Features Card (Light Bulb - Yellow) */
.about-card.features {
    background: rgba(255, 255, 0, 0.1);
    border: 2px solid #ffff00;
    box-shadow: 0 0 15px rgba(255, 255, 0, 0.2);
}

.about-card.features h3 {
    color: #ffff00;
    text-shadow: 0 0 5px #ffff00;
}

.about-card.features ul li {
    color: #ffffff;
    text-shadow: 0 0 3px #ffff00;
}

.about-card.features ul li:before {
    color: #ffff00;
}

.about-card.features .icon {
    color: #ffff00;
    text-shadow: 0 0 10px #ffff00;
}

.about-card.features:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 25px rgba(255, 255, 0, 0.3);
}

/* Java Card (Coffee - Brown) */
.card.java-card {
    background: rgba(139, 69, 19, 0.1);
    border: 2px solid #8b4513;
    box-shadow: 0 0 15px rgba(139, 69, 19, 0.2);
}

.card.java-card h3 {
    color: #8b4513;
    text-shadow: 0 0 5px #8b4513;
}

.card.java-card p {
    color: #ffffff;
    text-shadow: 0 0 3px #8b4513;
}

.card.java-card .icon {
    color: #8b4513;
    text-shadow: 0 0 10px #8b4513;
}

.card.java-card a {
    color: #8b4513;
    text-shadow: 0 0 3px #8b4513;
}

.card.java-card a:hover {
    color: #a0522d;
    text-shadow: 0 0 5px #8b4513;
}

.card.java-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 25px rgba(139, 69, 19, 0.3);
}

/* VB.NET Card (Computer - Blue) */
.card.vbnet-card {
    background: rgba(0, 170, 255, 0.1);
    border: 2px solid #00aaff;
    box-shadow: 0 0 15px rgba(0, 170, 255, 0.2);
}

.card.vbnet-card h3 {
    color: #00aaff;
    text-shadow: 0 0 5px #00aaff;
}

.card.vbnet-card p {
    color: #ffffff;
    text-shadow: 0 0 3px #00aaff;
}

.card.vbnet-card .icon {
    color: #00aaff;
    text-shadow: 0 0 10px #00aaff;
}

.card.vbnet-card a {
    color: #00aaff;
    text-shadow: 0 0 3px #00aaff;
}

.card.vbnet-card a:hover {
    color: #0077cc;
    text-shadow: 0 0 5px #00aaff;
}

.card.vbnet-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 25px rgba(0, 170, 255, 0.3);
}

/* Loading State for Particles */
.particles-loading {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #00aaff;
    font-size: 1.2rem;
    text-shadow: 0 0 10px #00aaff;
    z-index: 1000;
    opacity: 1;
    transition: opacity 0.5s ease-out;
    background: rgba(0, 0, 0, 0.8);
    padding: 1rem 2rem;
    border-radius: 8px;
    border: 1px solid rgba(0, 170, 255, 0.3);
    box-shadow: 0 0 20px rgba(0, 170, 255, 0.2);
    pointer-events: none;
}

#particles {
    position: fixed;
    width: 100%;
    height: 100vh;
    top: 0;
    left: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.5s ease-in;
    background: rgba(13, 13, 13, 0.5);
}

#particles.loaded {
    opacity: 1;
}

#particles.loaded .particles-loading {
    display: none;
}

/* Fallback for backdrop-filter */
@supports not (backdrop-filter: blur(10px)) {
    header {
        background: rgba(13, 13, 13, 0.95);
    }
    
    footer.container {
        background: rgba(13, 13, 13, 0.95);
    }
}

/* Back to Top Button */
.back-to-top,
.back-to-top.visible,
.back-to-top:hover,
.back-to-top i {
    display: none;
}

/* Mobile Menu Styles */
@media (max-width: 736px) {
    #hamburgerBtn {
        display: block;
        background: none;
        border: none;
        color: white;
        font-size: 24px;
        cursor: pointer;
        padding: 10px;
        z-index: 1001;
    }

    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: rgba(13, 13, 13, 0.95);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        padding: 80px 20px;
        transition: right 0.3s ease;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
    }

    nav.active {
        right: 0;
    }

    .logo-container {
        position: fixed;
        top: 15px;
        left: 15px;
        z-index: 1001;
    }

    .logo-container.active {
        display: block;
    }

    #hamburgerBtn.active i {
        transform: rotate(180deg);
        transition: transform 0.3s ease;
    }

    nav a {
        margin: 15px 0;
        font-size: 20px;
    }

    .content {
        padding-top: 80px;
    }

    .container {
        padding: 30px 15px;
    }

    .card, .about-card {
        width: 100%;
        max-width: 280px;
        margin: 15px 0;
    }
}

/* Improve touch targets for mobile */
@media (max-width: 736px) {
    button, 
    .nav-link, 
    .card a, 
    .about-card a {
        min-height: 44px;
        min-width: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}