body {
    font-family: 'Helvetica Neue', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #fdfdfd;
    overflow-x: hidden;
    transition: background-color 0.5s ease, color 0.5s ease;
  }
  
  /* Hero Section */
  .hero {
    height: 100vh;
    background: linear-gradient(to right, #c94985, #8202cc);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    animation: fadeIn 1s ease;
  }
  
  .hero-content h1 {
    font-family: 'Courier New', Courier, monospace;
    font-size: 3rem;
    margin-bottom: 0.5rem;
  }
  
  .hero-content p {
    font-size: 1.5rem;
    color: #3b3b3b;
  }
  
  .hero-content {
    animation: heroFadeUp 1.2s ease forwards;
    opacity: 0;
  }
  
  .hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: 1px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.2);
  }
  
  .hero-subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    opacity: 0.85;
    text-shadow: 0 2px 6px rgba(0,0,0,0.15);
  }
  
  
  @keyframes heroFadeUp {
    0% {
      opacity: 0;
      transform: translateY(30px) scale(0.98);
    }
    100% {
      opacity: 1;
      transform: translateY(0) scale(1);
    }
  }  
  
  #heroParticles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0; /* behind text */
  }
  
  /* Back Button */
.back-home-sticky {
  position: fixed;
  top: 20px;
  left: 20px;
  background-color: var(--accent-color);
  color: #fff;
  font-size: 1.4rem;
  padding: 10px;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  transition: background 0.3s ease, transform 0.2s ease;
  z-index: 999;
}

.back-home-sticky:hover {
  background-color: #ff4e4e;
  transform: scale(1.1);
}

/* DARK MODE support */
body.dark-mode .back-home-sticky {
  background-color: #1c1c1c;
  color: #fff;
}

  
  
  
  
  
  /* DARK MODE STYLING FOR PROJECT PAGES */
  body.dark-mode {
  background-color: #121212;
  color: #f0f0f0;
  }
  
  /* Hero Section in Dark Mode */
  body.dark-mode .hero {
  background: linear-gradient(to right, #491a30, #2a0142)
  }
  
  /* Project Sections in Dark Mode */
  body.dark-mode .project-section {
  background: #1a1a1a;
  color: #eeeeee;
  }
  
  /* Collaborators Section in Dark Mode */
  body.dark-mode .collaborators {
  background: #1e1e1e;
  color: #f0f0f0;
  }
  
  /* Progress bar color (optional) */
  body.dark-mode #progress-bar {
  background: #00bcd4;
  }
  
  body.dark-mode .hero-title {
  color: #ffffff; /* Pure white title in dark mode */
  text-shadow: 0 2px 8px rgba(0,0,0,0.6); /* Slight black shadow for readability */
  }
  
  body.dark-mode .hero-subtitle {
  color: #dddddd; /* Slightly softer white for subtitle */
  text-shadow: 0 2px 6px rgba(0,0,0,0.5);
  }
  
  body.dark-mode .text h2 {
  color: #dddddd; /* Slightly softer white for subtitle */
  text-shadow: 0 2px 6px rgba(0,0,0,0.5);
  }
  
  body.dark-mode .text p {
  color: #dddddd; /* Slightly softer white for subtitle */
  text-shadow: 0 2px 6px rgba(0,0,0,0.5);
  }
  
  
  
  
  
  /* Dark Mode Toggle Button */
  #darkModeToggle {
  position: fixed;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  z-index: 1000;
  }
  
  #modeIcon {
  pointer-events: none;
  }
  
  /* Ripple effect for dark mode switch */
  #ripple {
  position: fixed;
  width: 20px;
  height: 20px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 50%;
  transform: scale(0);
  opacity: 0;
  pointer-events: none;
  z-index: 999;
  transition: transform 0.8s ease-out, opacity 0.8s ease-out;
  }
  
  
  /* Flashlight Effect */
  body.dark-mode::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background: radial-gradient(circle at var(--cursorX) var(--cursorY), rgba(255,255,255,0.08) 0%, transparent 15%);
  z-index: 998;
  }
  
  
  /* Audio Controls */
  .audio-controls {
  position: fixed;
  bottom: 20px;
  left: 20px;
  display: flex;
  align-items: center;
  background: var(--accent-color);
  padding: 8px 15px;
  border-radius: 50px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
  z-index: 999;
  }
  
  /* Mute/Unmute Button */
  #audioToggle {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--primary-text-color);
  cursor: pointer;
  outline: none;
  }
  
  /* Slider Wrapper */
  .slider-wrapper {
  overflow: hidden;
  width: 0;
  opacity: 0;
  transition: width 0.4s ease, opacity 0.4s ease, margin-left 0.4s ease;
  margin-left: 0;
  }
  
  /* Expand slider on hover */
  .audio-controls:hover .slider-wrapper {
  width: 120px;
  opacity: 1;
  margin-left: 15px;
  }
  
  /* Volume Slider Styling */
  #volumeSlider {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  background: #ddd;
  border-radius: 5px;
  outline: none;
  cursor: pointer;
  transition: background 0.3s ease;
  }
  
  #volumeSlider:hover {
  background: #bbb;
  }
  
  
  
  
  
  
  /* Project Sections */
  .project-section {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 80px;
  padding: 120px 20px;
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
  max-width: 70%;
  margin: auto;
  flex-wrap: wrap;
  }
  
  .project-section.left .text {
  order: 1;
  text-align: left;
  }
  
  .project-section.left .image {
  order: 2;
  }
  
  .project-section.right .text {
  order: 2;
  text-align: right;
  }
  
  .project-section.right .image {
  order: 1;
  }
  
  .text {
  flex: 1 1 45%;
  min-width: 300px;
  padding: 20px;
  }
  
  .text h2 {
  font-size: 2.5rem;
  margin-bottom: 20px;
  color: #222;
  }
  
  .text p {
  font-size: 1.2rem;
  line-height: 1.8;
  color: #555;
  }
  
  .image {
  flex: 1 1 45%;
  min-width: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  }
  
  .image img {
  width: 100%;
  max-width: 500px;
  height: auto;
  border-radius: 20px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  object-fit: cover;
  }
  
  /* Fade-in when in view */
  .project-section.fade-in {
  opacity: 1;
  transform: translateY(0);
  }
  
  
  
  
  
  /*Progress Bar*/
  #progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 8px;
  background: linear-gradient(to right, #74ebd5, #ACB6E5);
  width: 0%;
  z-index: 1000;
  transition: width 0.25s ease-out;
  }
  
  
  
/* Achievements */
.achievements {
    padding: 100px 20px;
    background: #f5f5f5;
    text-align: center;
  }
  
  .achievements h2 {
    font-size: 2.8rem;
    margin-bottom: 40px;
    color: var(--primary-text-color);
  }
  
  .achievement-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
  }
  
  .achievement {
    background: #ffffff;
    padding: 30px 20px;
    width: 250px;
    border-radius: 20px;
    box-shadow: 0px 8px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: popIn 1s ease forwards;
  }
  
  .achievement:hover {
    transform: translateY(-8px);
    box-shadow: 0px 12px 25px rgba(0,0,0,0.15);
  }
  
  .achievement h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--primary-text-color);
  }
  
  .achievement p {
    font-size: 1rem;
    opacity: 0.8;
  }
  
  /* Pop-in Animation */
  @keyframes popIn {
    0% {
      opacity: 0;
      transform: scale(0.9);
    }
    100% {
      opacity: 1;
      transform: scale(1);
    }
  }
  
  
  /* DARK MODE: Achievements Section */
  body.dark-mode .achievements {
    background-color: #121212;
  }
  
  body.dark-mode .achievements h2 {
    color: #ffffff;
  }
  
  body.dark-mode .achievement {
    background-color: #1e1e1e;
    box-shadow: 0px 8px 20px rgba(0, 0, 0, 0.4);
  }
  
  body.dark-mode .achievement h3 {
    color: #ffffff;
  }
  
  body.dark-mode .achievement p {
    color: #cccccc;
  }
  
  
  
  
  /* Fade-in Animation */
  @keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
  }
  
  
  /* Github Button */
  .github-button {
  text-align: center;
  margin: 50px 0;
  }
  
  .github-button a {
  display: inline-block;
  padding: 12px 25px;
  font-size: 1.2rem;
  font-weight: 600;
  background: var(--accent-color);
  color: #818181;
  text-decoration: none;
  border-radius: 30px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  transition: background 0.3s ease, transform 0.3s ease;
  }
  
  .github-button a:hover {
  background: #0077cc; /* darker hover */
  transform: translateY(-3px);
  }
  
  
  /* Back Home Button */
  .back-home {
  text-align: center;
  margin: 50px 0;
  }
  
  .back-home a {
  font-size: 1.2rem;
  text-decoration: none;
  color: var(--primary-text-color);
  transition: color 0.3s ease;
  }
  
  .back-home a:hover {
  color: var(--accent-color);
  }


  /* Core Modules Section */
.modules {
  padding: 100px 20px;
  background: var(--background-light);
  border-top-left-radius: 40px;
  border-top-right-radius: 40px;
  text-align: center;
}

body.dark-mode .modules {
  background: #121212;
}

.modules h2 {
  font-size: 2.8rem;
  margin-bottom: 40px;
  color: var(--primary-text-color);
}

.module-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 25px;
  max-width: 1100px;
  margin: 0 auto;
}

.module {
  background: #fff;
  padding: 25px;
  border-radius: 20px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

body.dark-mode .module {
  background: #1e1e1e;
  box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}

.module:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 25px rgba(0,0,0,0.15);
}

.module h3 {
  margin-top: 0;
  font-size: 1.3rem;
  color: var(--primary-text-color);
}

.module p {
  font-size: 1rem;
  color: var(--secondary-text-color);
}


/* Back Button */
.back-home-sticky {
  position: fixed;
  top: 20px;
  left: 20px;
  background-color: var(--accent-color);
  color: #fff;
  font-size: 1.4rem;
  padding: 10px;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  transition: background 0.3s ease, transform 0.2s ease;
  z-index: 999;
}

.back-home-sticky:hover {
  background-color: #ff4e4e;
  transform: scale(1.1);
}

/* DARK MODE support */
body.dark-mode .back-home-sticky {
  background-color: #1c1c1c;
  color: #fff;
}