/* ===== Reset & Base ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}

body {
  color: white;
  overflow-x: hidden;
  transition: background 0.3s, color 0.3s;
}

/* ===== Background Video ===== */
#bg-video {
  position: fixed;
  top: 0;
  left: 0;
  min-width: 100%;
  min-height: 100%;
  object-fit: cover;
  z-index: -2;
  transition: transform 0.2s ease-out;
}

/* ===== Floating Particles ===== */
#particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

/* ===== Navbar ===== */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 60px;
  background: rgba(0, 0, 0, 0.6);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 10;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: bold;
  color: gold;
}

.logo img {
  width: 600px;
  height: 600px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  gap: 25px;
  list-style: none;
}

.nav-links a {
  color: white;
  text-decoration: none;
  font-size: 1rem;
  transition: color 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
  color: gold;
}

.login-btn {
  background: gold;
  border: none;
  padding: 8px 18px;
  border-radius: 20px;
  cursor: pointer;
  font-weight: bold;
  transition: transform 0.3s, background 0.3s;
}

.login-btn:hover {
  background: orange;
  transform: scale(1.05);
}

.theme-btn {
  margin-left: 15px;
  background: none;
  border: 2px solid gold;
  color: gold;
  font-size: 1.2rem;
  padding: 5px 10px;
  border-radius: 50%;
  cursor: pointer;
  transition: 0.3s;
}

.theme-btn:hover {
  background: gold;
  color: black;
}

/* ===== Hero Section ===== */
.content {
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0 20px;
}

.content h1 {
  font-size: 3rem;
  color: gold;
  text-shadow: 0 0 15px black;
  margin-bottom: 20px;
}

.content p {
  font-size: 1.2rem;
  max-width: 700px;
  line-height: 1.6;
  margin-bottom: 30px;
}

.btn {
  background: gold;
  padding: 12px 25px;
  border-radius: 25px;
  text-decoration: none;
  color: black;
  font-weight: bold;
  transition: background 0.3s, transform 0.3s;
}

.btn:hover {
  background: orange;
  transform: translateY(-3px);
}

/* ===== Projects Section ===== */
.projects {
  padding: 100px 20px;
  text-align: center;
  background: rgba(0, 0, 0, 0.7);
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 40px;
  color: gold;
  text-shadow: 0 0 10px black;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
  max-width: 1100px;
  margin: auto;
}

.project-card {
  background: rgba(207, 193, 193, 0.05);
  border-radius: 12px;
  padding: 20px;
  text-align: left;
  transition: transform 0.3s, box-shadow 0.3s;
  border: 1px solid rgba(255, 215, 0, 0.2);
  opacity: 0;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 0 15px rgba(255, 215, 0, 0.5);
}

.project-card h3 {
  color: gold;
  margin-bottom: 10px;
}

/* ===== Engineers Section ===== */
.engineers {
  padding: 100px 20px;
  text-align: center;
  background: rgba(20, 20, 20, 0.85);
}

.engineer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
  max-width: 1100px;
  margin: auto;
}

.engineer-card {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
  border: 1px solid rgba(255, 215, 0, 0.2);
  opacity: 0;
}

.engineer-card img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 50%;
  margin-bottom: 10px;
}

.engineer-card h3 {
  color: gold;
  margin-bottom: 5px;
}

.engineer-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 0 15px rgba(255, 215, 0, 0.5);
}

/* ========================
   Contact Section
======================== */
.contact {
  padding: 80px 20px;
  background: rgba(0, 0, 0, 0.85);
  text-align: center;
}

.contact .section-title {
  font-size: 2.2rem;
  margin-bottom: 15px;
  color: gold;
  text-shadow: 0 0 8px black;
}

.contact-caption {
  font-size: 1rem;
  max-width: 700px;
  margin: 0 auto 40px;
  color: #ddd;
  line-height: 1.6;
}

.contact-container {
  max-width: 1100px;
  margin: auto;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 40px;
  flex-wrap: wrap;
}

/* Contact Info */
.contact-info {
  flex: 1;
  min-width: 250px;
  text-align: left;
  color: #fff;
}

.contact-info h3 {
  color: gold;
  margin-bottom: 15px;
}

.contact-info p {
  margin: 8px 0;
  line-height: 1.6;
}

/* Contact Form */
.contact-form {
  flex: 1;
  min-width: 300px;
  background: rgba(255, 255, 255, 0.05);
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 0 10px rgba(255, 215, 0, 0.2);
  text-align: left;
}

.contact-form label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  color: gold;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px;
  margin-bottom: 15px;
  border: 2px solid gold;
  border-radius: 8px;
  background: #111;
  color: #fff;
  font-size: 1rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: #fff;
  outline: none;
}

/* Submit Button */
.contact-form button {
  width: 100%;
  padding: 12px;
  background: gold;
  color: #111;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.contact-form button:hover {
  background: orange;
  color: #fff;
  box-shadow: 0 0 12px gold;
}

/* ========================
   Responsive
======================== */

/* Tablets */
@media (max-width: 1024px) {
  .contact-container {
    gap: 25px;
  }
}

/* Mobiles */
@media (max-width: 768px) {
  .contact-container {
    flex-direction: column;
    gap: 30px;
  }

  .contact-form,
  .contact-info {
    min-width: 100%;
  }

  .contact .section-title {
    font-size: 1.8rem;
  }

  .contact-caption {
    font-size: 0.95rem;
  }
}

/* Small Mobiles */
@media (max-width: 480px) {
  .contact .section-title {
    font-size: 1.5rem;
  }

  .contact-caption {
    font-size: 0.85rem;
  }

  .contact-form input,
  .contact-form textarea {
    font-size: 0.9rem;
    padding: 10px;
  }

  .contact-form button {
    font-size: 0.9rem;
    padding: 10px;
  }
}


/* Light Mode */
body.light .contact {
  background: rgba(255, 255, 255, 0.9);
}

body.light .contact .section-title {
  color: orange;
}

body.light .contact-info h3,
body.light .contact-form label {
  color: orange;
}

body.light .contact-form {
  background: rgba(0, 0, 0, 0.05);
  box-shadow: 0 0 10px rgba(255, 165, 0, 0.3);
}

body.light .contact-form input,
body.light .contact-form textarea {
  background: #fff;
  color: #111;
  border: 2px solid orange;
}

body.light .contact-form button {
  background: orange;
  color: #fff;
}

body.light .contact-form button:hover {
  background: #111;
  color: orange;
}
/* Contact Caption */
.contact-caption {
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto 30px;
  color: #ddd;
  line-height: 1.6;
}

body.light .contact-caption {
  color: #444;
}


/* ===== Quotes Section ===== */
.quotes {
  padding: 80px 20px;
  text-align: center;
  background: rgba(20, 20, 20, 0.9);
}

.quote-box {
  max-width: 700px;
  margin: 15px auto;
  font-size: 1.2rem;
  font-style: italic;
  padding: 15px;
  border-left: 4px solid gold;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  opacity: 0;
}

/* ===== Light Mode ===== */
body.light {
  background: #f7f7f7;
  color: #222;
}

body.light .navbar {
  background: rgba(255, 255, 255, 0.8);
}

body.light .nav-links a {
  color: #222;
}

body.light .nav-links a:hover,
body.light .nav-links a.active {
  color: orange;
}

body.light .login-btn {
  background: orange;
  color: white;
}

body.light .project-card,
body.light .engineer-card,
body.light .quote-box {
  background: rgba(0, 0, 0, 0.05);
  color: white;
  border: 1px solid rgba(0, 0, 0, 0.1);
}

body.light .section-title {
  color: orange;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    gap: 10px;
    padding: 15px;
  }

  .nav-links {
    flex-direction: column;
    gap: 10px;
  }

  .content h1 {
    font-size: 2rem;
  }

  .content p {
    font-size: 1rem;
  }
}
/* Reset */
* {margin:0;padding:0;box-sizing:border-box;font-family:"Poppins",sans-serif;}

body {color:white;overflow-x:hidden;transition:background 0.3s,color 0.3s;}

#bg-video {position:fixed;top:0;left:0;min-width:100%;min-height:100%;object-fit:cover;z-index:-2;transition:transform 0.2s ease-out;}
#particles {position:fixed;top:0;left:0;width:100%;height:100%;z-index:-1;pointer-events:none;}

/* Navbar */
.navbar {display:flex;justify-content:space-between;align-items:center;padding:20px 60px;background:rgba(0,0,0,0.6);position:fixed;width:100%;top:0;z-index:10;}
.logo {display:flex;align-items:center;gap:10px;font-size:1.3rem;font-weight:bold;color:gold;}
.logo img {width:40px;height:40px;object-fit:contain;}
.nav-links {display:flex;gap:20px;list-style:none;}
.nav-links a {color:white;text-decoration:none;font-size:1rem;transition:0.3s;}
.nav-links a:hover,.nav-links a.active {color:gold;}
.theme-btn {background:none;border:2px solid gold;color:gold;font-size:1.1rem;padding:5px 10px;border-radius:50%;cursor:pointer;transition:0.3s;}
.theme-btn:hover {background:gold;color:black;}

/* Quiz Section */
.quiz-section {min-height:100vh;display:flex;justify-content:center;align-items:center;flex-direction:column;padding:100px 20px;}
.quiz-box,.result-box {background:rgba(0,0,0,0.7);padding:30px;border-radius:12px;text-align:center;max-width:600px;width:100%;box-shadow:0 0 15px rgba(255,215,0,0.4);}
.quiz-box h2,.result-box h2 {margin-bottom:20px;color:gold;}
.options {display:flex;flex-direction:column;gap:15px;margin-bottom:20px;}
.options button {padding:10px;border:none;border-radius:8px;background:rgba(255,255,255,0.1);color:white;font-size:1rem;cursor:pointer;transition:0.3s;}
.options button:hover {background:gold;color:black;}
.options button.correct {background:green !important;color:white;}
.options button.wrong {background:red !important;color:white;}
.btn {background:gold;color:black;padding:10px 20px;border:none;border-radius:8px;cursor:pointer;font-weight:bold;transition:0.3s;}
.btn:hover {background:orange;transform:translateY(-3px);}
.result-box {display:none;}
.result-box input {padding:8px;width:80%;border:none;border-radius:8px;margin-bottom:15px;}

/* Light Mode */
body.light {background:#f7f7f7;color:#222;}
body.light .navbar {background:rgba(255,255,255,0.8);}
body.light .nav-links a {color:#222;}
body.light .nav-links a:hover,.light .nav-links a.active {color:orange;}
body.light .quiz-box,body.light .result-box {background:rgba(255,255,255,0.9);color:#222;}
body.light .options button {background:rgba(0,0,0,0.05);color:#222;}
body.light .btn {background:orange;color:white;}
/* Reset */
* {margin:0;padding:0;box-sizing:border-box;font-family:"Poppins",sans-serif;}

body {color:white;overflow-x:hidden;transition:background 0.3s,color 0.3s;}
#bg-video {position:fixed;top:0;left:0;min-width:100%;min-height:100%;object-fit:cover;z-index:-2;}
#particles {position:fixed;top:0;left:0;width:100%;height:100%;z-index:-1;pointer-events:none;}

/* Navbar */
.navbar {display:flex;justify-content:space-between;align-items:center;padding:20px 60px;background:rgba(0,0,0,0.6);position:fixed;width:100%;top:0;z-index:10;}
.logo {display:flex;align-items:center;gap:10px;font-size:1.3rem;font-weight:bold;color:gold;}
.logo img {width:40px;height:40px;}
.nav-links {display:flex;gap:20px;list-style:none;}
.nav-links a {color:white;text-decoration:none;font-size:1rem;transition:0.3s;}
.nav-links a:hover,.nav-links a.active {color:gold;}
.theme-btn {background:none;border:2px solid gold;color:gold;font-size:1.1rem;padding:5px 10px;border-radius:50%;cursor:pointer;transition:0.3s;}
.theme-btn:hover {background:gold;color:black;}

/* Leaderboard Section */
.leaderboard-section {padding:120px 20px;text-align:center;}
.section-title {font-size:2.5rem;margin-bottom:30px;color:gold;text-shadow:0 0 10px black;}
#leaderboard-table {margin:auto;border-collapse:collapse;width:80%;max-width:600px;background:rgba(0,0,0,0.7);border-radius:12px;overflow:hidden;}
#leaderboard-table th,#leaderboard-table td {padding:15px;border-bottom:1px solid rgba(255,215,0,0.2);}
#leaderboard-table th {background:rgba(255,215,0,0.2);color:gold;}
#leaderboard-table tr:hover {background:rgba(255,255,255,0.05);}
.btn {display:inline-block;margin-top:20px;background:gold;color:black;padding:10px 20px;border:none;border-radius:8px;cursor:pointer;font-weight:bold;transition:0.3s;text-decoration:none;}
.btn:hover {background:orange;transform:translateY(-3px);}

/* Light Mode */
body.light {background:#f7f7f7;color:#222;}
body.light .navbar {background:rgba(255,255,255,0.8);}
body.light .nav-links a {color:#222;}
body.light .nav-links a:hover,.light .nav-links a.active {color:orange;}
body.light #leaderboard-table {background:white;color:#222;}
body.light #leaderboard-table th {background:rgba(255,165,0,0.2);color:orange;}
/* Footer */
.footer {
  text-align: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  font-size: 0.9rem;
  margin-top: 50px;
  align-items: center;
}

.footer strong {
  color: gold;
}

body.light .footer {
  background: rgba(255, 255, 255, 0.9);
  color: #222;
}
body.light .footer strong {
  color: orange;
}
/* =============================
   RESPONSIVE DESIGN (Index)
============================= */

/* Tablets */
@media (max-width: 1024px) {
  .navbar { padding: 15px 30px; }
  .nav-links { gap: 15px; }
  .section-title { font-size: 2rem; }
  .project-grid, .engineer-grid { grid-template-columns: repeat(1, 1fr); }
}

/* Mobiles */
@media (max-width: 768px) {
  .navbar { flex-direction: column; align-items: flex-start; padding: 15px 20px; }
  .nav-links { flex-direction: column; gap: 10px; margin-top: 10px; }
  .login-btn, .theme-btn { margin-top: 10px; }
  .content h1 { font-size: 2rem; }
  .content p { font-size: 1rem; }
  .project-grid, .engineer-grid { grid-template-columns: 1fr; }
}

/* Small Mobiles */
@media (max-width: 480px) {
  .navbar { padding: 10px 15px; }
  .logo { font-size: 1rem; }
  .logo img { width: 30px; height: 30px; }
  .content h1 { font-size: 1.6rem; }
  .content p { font-size: 0.9rem; }
  .btn { padding: 8px 15px; font-size: 0.9rem; }
}
/* =============================
   RESPONSIVE DESIGN (Quiz)
============================= */

/* Tablets */
@media (max-width: 1024px) {
  .quiz-box, .result-box { width: 90%; }
  .options button { font-size: 0.95rem; }
}

/* Mobiles */
@media (max-width: 768px) {
  .navbar { flex-direction: column; align-items: flex-start; padding: 15px 20px; }
  .nav-links { flex-direction: column; gap: 10px; margin-top: 10px; }
  .quiz-box, .result-box { width: 95%; padding: 20px; }
  .quiz-box h2 { font-size: 1.3rem; }
}

/* Small Mobiles */
@media (max-width: 480px) {
  .quiz-box, .result-box { padding: 15px; }
  .options button { font-size: 0.85rem; padding: 8px; }
  .btn { padding: 8px 15px; font-size: 0.9rem; }
}
/* =============================
   RESPONSIVE DESIGN (Leaderboard)
============================= */

/* Tablets */
@media (max-width: 1024px) {
  #leaderboard-table { width: 90%; font-size: 1rem; }
}

/* Mobiles */
@media (max-width: 768px) {
  .navbar { flex-direction: column; align-items: flex-start; padding: 15px 20px; }
  .nav-links { flex-direction: column; gap: 10px; margin-top: 10px; }
  #leaderboard-table { width: 95%; font-size: 0.9rem; }
  #leaderboard-table th, #leaderboard-table td { padding: 10px; }
}

/* Small Mobiles */
@media (max-width: 480px) {
  .logo img { width: 30px; height: 30px; }
  .section-title { font-size: 1.6rem; }
  #leaderboard-table { font-size: 0.85rem; }
  .btn { padding: 8px 15px; font-size: 0.9rem; }
}
/* Hamburger Menu */
.hamburger {
  display: none;
  font-size: 1.8rem;
  cursor: pointer;
  color: gold;
  margin-left: auto;
}

/* Mobile Navbar */
@media (max-width: 768px) {
  .hamburger {
    display: block;
  }
  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    background: rgba(0,0,0,0.9);
    position: absolute;
    top: 70px;
    left: 0;
    padding: 20px;
  }
  .nav-links.show {
    display: flex;
  }
  .nav-links li {
    margin: 10px 0;
  }
}
/* Hamburger Menu */
.hamburger {
  display: none;
  font-size: 1.8rem;
  cursor: pointer;
  color: gold;
  margin-left: auto;
  user-select: none;
}

/* Mobile Navbar */
@media (max-width: 768px) {
  .hamburger {
    display: block;
  }

  .nav-links {
    display: flex;
    flex-direction: column;
    width: 100%;
    background: rgba(0, 0, 0, 0.95);
    position: absolute;
    top: 70px;
    left: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-in-out;
  }

  .nav-links.show {
    max-height: 400px; /* enough space for all links */
    padding: 20px;
  }

  .nav-links li {
    margin: 12px 0;
    text-align: center;
  }
}
/* Overlay Background */
#overlay {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.6);
  z-index: 5;
  opacity: 0;
  transition: opacity 0.4s ease;
}

/* Show overlay when active */
#overlay.show {
  display: block;
  opacity: 1;
}

/* Ensure nav-links stay above overlay */
.nav-links {
  z-index: 10;
}


/* ===== Light Mode ===== */
body.light .search-bar {
  background: #ffffff;
  border: 1px solid #ccc;
}

body.light .search-bar input {
  color: #000;
}

body.light .search-bar input::placeholder {
  color: #777;
}

body.light .search-bar button {
  color: #444;
}
.link{
  text-decoration: none;
}
.link-p{
  text-decoration: none;
  color: white;
}
.link-p a:hover{
  cursor: none;
}
/* Login & Logout Button Styles */
.login-btn {
  background: gold;
  border: none;
  padding: 8px 18px;
  border-radius: 20px;
  cursor: pointer;
  font-weight: bold;
  transition: transform 0.3s, background 0.3s;
}

.login-btn:hover {
  background: orange;
  transform: scale(1.05);
}