/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #000;
  color: #e0e0e0;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Star Wars Starfield Background */
.starfield {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: radial-gradient(ellipse at center, #0a0a2e 0%, #000000 100%);
}

.star {
  position: absolute;
  background: white;
  border-radius: 50%;
  animation: twinkle linear infinite;
}

@keyframes twinkle {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

@keyframes moveStars {
  from { transform: translateY(-100vh); }
  to { transform: translateY(100vh); }
}

/* Gradient Overlay */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, rgba(10,10,46,0.3) 0%, rgba(0,0,0,0.5) 50%, rgba(10,10,46,0.3) 100%);
  z-index: -1;
  pointer-events: none;
}

/* Navbar with Glass Effect */
.navbar {
  background: rgba(10, 10, 46, 0.7);
  backdrop-filter: blur(20px);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  animation: slideDown 0.5s ease-out;
}

@keyframes slideDown {
  from { transform: translateY(-100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav-logo {
  font-size: 1.8rem;
  font-weight: bold;
  color: #fff;
  text-decoration: none;
  text-shadow: 0 0 10px rgba(255,255,255,0.5);
  transition: all 0.3s;
}
.nav-logo:hover {
  text-shadow: 0 0 20px rgba(255,255,255,0.8);
}
.nav-menu {
  display: flex;
  gap: 2rem;
  list-style: none;
}
.nav-link {
  color: #ccc;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s;
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: #fff;
  transition: width 0.3s;
}
.nav-link:hover {
  color: #fff;
}
.nav-link:hover::after {
  width: 100%;
}
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}
.bar {
  width: 25px;
  height: 3px;
  background: #fff;
  transition: 0.3s;
  box-shadow: 0 0 5px rgba(255,255,255,0.5);
}

/* Hero Section with Animation */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 2rem;
  position: relative;
}
.hero-content {
  animation: fadeInUp 1s ease-out;
}
@keyframes fadeInUp {
  from { 
    opacity: 0;
    transform: translateY(30px);
  }
  to { 
    opacity: 1;
    transform: translateY(0);
  }
}
.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  animation: fadeInUp 1s ease-out 0.2s backwards;
}
.hero h1 span {
  background: linear-gradient(90deg, #fff, #4dd0e1, #fff);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 3s linear infinite;
}
@keyframes shimmer {
  to { background-position: 200% center; }
}
.hero p {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  color: #aaa;
  animation: fadeInUp 1s ease-out 0.4s backwards;
}
.hero-btns {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease-out 0.6s backwards;
}
.btn-primary, .btn-secondary {
  padding: 0.8rem 1.8rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}
.btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  box-shadow: 0 5px 15px rgba(102,126,234,0.4);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(102,126,234,0.6);
}
.btn-secondary {
  border: 2px solid #667eea;
  color: #fff;
  background: rgba(102,126,234,0.1);
}
.btn-secondary:hover {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-color: transparent;
}

/* Sections with Scroll Animation */
.section {
  padding: 5rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
  width: 100%;
}
.section.visible {
  opacity: 1;
  transform: translateY(0);
}
.section h2 {
  font-size: 2.5rem;
  margin-bottom: 3rem;
  position: relative;
  text-shadow: 0 0 10px rgba(255,255,255,0.3);
}
.section h2::after {
  content: '';
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, #667eea, #764ba2);
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 10px rgba(102,126,234,0.5);
}
.bg-dark {
  background: rgba(10, 10, 46, 0.3);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  margin: 2rem auto;
  border: 1px solid rgba(255,255,255,0.05);
  width: 100%;
  max-width: 1200px;
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  align-items: center;
  max-width: 1000px;
  margin: 0 auto;
}
.about-img {
  width: 100%;
  max-width: 300px;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 50%;
  border: 5px solid rgba(102,126,234,0.5);
  box-shadow: 0 0 30px rgba(102,126,234,0.3);
  transition: all 0.5s;
  margin: 0 auto;
}
.about-img:hover {
  transform: scale(1.05) rotate(5deg);
  box-shadow: 0 0 50px rgba(102,126,234,0.6);
}
.about-text p {
  margin-bottom: 1rem;
  font-size: 1.1rem;
  text-align: left;
}

/* Projects with Hover Effects */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1000px;
  margin: 0 auto;
  justify-items: center;
}
.project-card {
  background: rgba(26, 26, 26, 0.8);
  border-radius: 15px;
  overflow: hidden;
  transition: all 0.4s;
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.05);
  cursor: pointer;
  width: 100%;
  max-width: 400px;
}
.project-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 15px 35px rgba(102,126,234,0.4);
  border-color: rgba(102,126,234,0.5);
}
.project-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.5s;
}
.project-card:hover img {
  transform: scale(1.1);
}
.project-info {
  padding: 1.5rem;
}
.project-info h3 {
  margin-bottom: 0.5rem;
  color: #fff;
}
.badges {
  margin: 1rem 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.badge {
  background: linear-gradient(135deg, rgba(102,126,234,0.3), rgba(118,75,162,0.3));
  color: #fff;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  border: 1px solid rgba(102,126,234,0.3);
  transition: all 0.3s;
}
.badge:hover {
  background: linear-gradient(135deg, #667eea, #764ba2);
  transform: translateY(-2px);
}
.project-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}
.project-links a {
  color: #667eea;
  text-decoration: none;
  font-size: 0.9rem;
  transition: all 0.3s;
}
.project-links a:hover {
  color: #fff;
  text-shadow: 0 0 10px rgba(102,126,234,0.8);
}

/* Dataset Section */
.dataset-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin: 2rem auto 0;
  width: 100%;
  max-width: 1000px;
}
.dataset-card {
  background: rgba(26, 26, 26, 0.8);
  border-radius: 15px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 2rem;
  transition: all 0.4s;
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.05);
}
.dataset-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(102,126,234,0.4);
}
.dataset-img {
  width: 100%;
  height: 100%;
  min-height: 300px;
  object-fit: cover;
  transition: transform 0.5s;
}
.dataset-card:hover .dataset-img {
  transform: scale(1.05);
}
.dataset-info {
  padding: 1.5rem;
  text-align: left;
}
.dataset-info h3 {
  margin-bottom: 1rem;
  font-size: 1.5rem;
}
.dataset-features {
  list-style: none;
  margin: 1rem 0;
  padding: 0;
}
.dataset-features li {
  padding: 0.5rem 0;
  color: #aaa;
  transition: all 0.3s;
}
.dataset-features li:hover {
  color: #fff;
  transform: translateX(10px);
}
.dataset-features i {
  margin-right: 0.5rem;
  color: #667eea;
}
.dataset-btn {
  display: inline-block;
  margin-top: 1rem;
}

/* Skills with Animation */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1.5rem;
  max-width: 900px;
  margin: 0 auto;
}
.skill-item {
  background: rgba(34, 34, 34, 0.8);
  padding: 1.5rem 1rem;
  border-radius: 10px;
  font-size: 1.1rem;
  transition: all 0.3s;
  border: 1px solid rgba(255,255,255,0.05);
  cursor: pointer;
}
.skill-item:hover {
  background: linear-gradient(135deg, rgba(102,126,234,0.3), rgba(118,75,162,0.3));
  transform: scale(1.1) rotate(5deg);
  border-color: rgba(102,126,234,0.5);
  box-shadow: 0 5px 20px rgba(102,126,234,0.4);
}
.skill-item i {
  margin-right: 0.5rem;
  color: #667eea;
  font-size: 1.5rem;
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin: 2rem auto 0;
  max-width: 1000px;
}
.service-card {
  background: rgba(26, 26, 26, 0.8);
  padding: 2rem 1.5rem;
  border-radius: 12px;
  text-align: center;
  transition: all 0.4s;
  border: 1px solid rgba(255,255,255,0.05);
  cursor: pointer;
}
.service-card i {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: #667eea;
  transition: all 0.3s;
}
.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 35px rgba(102,126,234,0.3);
  background: linear-gradient(135deg, rgba(102,126,234,0.2), rgba(118,75,162,0.2));
  border-color: rgba(102,126,234,0.5);
}
.service-card:hover i {
  transform: scale(1.2) rotateY(360deg);
  color: #fff;
}

/* Customer History - Enhanced Video Cards */
.history-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin: 2rem auto 0;
  max-width: 1000px;
}
.history-card {
  background: rgba(26, 26, 26, 0.8);
  padding: 1.5rem;
  border-radius: 12px;
  border-left: 4px solid #667eea;
  transition: all 0.4s;
  border: 1px solid rgba(255,255,255,0.05);
}
.history-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(102,126,234,0.3);
}
.history-card h3 {
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
  color: #fff;
}
.video-container {
  position: relative;
  width: 100%;
  max-width: 280px;
  margin: 1.5rem auto;
  padding-bottom: 177.78%;
  height: 0;
  overflow: hidden;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.5);
  background: #000;
  border: 2px solid rgba(102,126,234,0.3);
  transition: all 0.3s;
}
.history-card:hover .video-container {
  box-shadow: 0 12px 30px rgba(102,126,234,0.5);
  border-color: rgba(102,126,234,0.6);
}
.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* Contact Section */
.social-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin: 2rem auto;
  flex-wrap: wrap;
  max-width: 600px;
}
.social-links a {
  font-size: 2.5rem;
  color: #667eea;
  transition: all 0.3s;
  display: inline-block;
}
.social-links a:hover {
  color: #fff;
  transform: translateY(-10px) scale(1.2);
  filter: drop-shadow(0 0 15px rgba(102,126,234,0.8));
}
.contact-info {
  margin-top: 2rem;
  font-size: 1rem;
  color: #ccc;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.contact-info a {
  color: #667eea;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s;
}
.contact-info a:hover {
  color: #fff;
  text-shadow: 0 0 10px rgba(102,126,234,0.8);
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem;
  background: rgba(0, 0, 0, 0.8);
  color: #666;
  font-size: 0.9rem;
  border-top: 1px solid rgba(255,255,255,0.05);
}

/* Responsive */
@media (max-width: 768px) {
  .hamburger { display: flex; }
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background: rgba(10, 10, 46, 0.95);
    backdrop-filter: blur(20px);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    padding: 2rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }
  .nav-menu.active { left: 0; }
  .hero h1 { font-size: 2.5rem; }
  .about-grid { 
    grid-template-columns: 1fr; 
    text-align: center; 
  }
  .about-img { margin: 0 auto; }
  .about-text p { text-align: center; }
  .dataset-card {
    grid-template-columns: 1fr;
  }
  .dataset-info {
    text-align: center;
  }
  .dataset-features li:hover {
    transform: translateX(0);
  }
}

/* Loading Animation */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* CV Password Modal */
.modal {
  display: none;
  position: fixed;
  z-index: 2000;
  left: 0; top: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.8);
  backdrop-filter: blur(10px);
  animation: fadeIn 0.3s;
}
.modal-content {
  background: rgba(26,26,26,0.95);
  margin: 15% auto;
  padding: 0;
  width: 90%;
  max-width: 400px;
  border-radius: 15px;
  border: 1px solid rgba(102,126,234,0.5);
  box-shadow: 0 10px 30px rgba(102,126,234,0.4);
  overflow: hidden;
}
.modal-header {
  padding: 1.5rem;
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  position: relative;
}
.modal-header h3 {
  margin: 0;
  font-size: 1.3rem;
}
.close {
  position: absolute;
  right: 1.5rem;
  top: 1.5rem;
  font-size: 1.5rem;
  cursor: pointer;
  color: #fff;
  opacity: 0.8;
}
.close:hover { opacity: 1; }
.modal-body {
  padding: 1.5rem;
  text-align: center;
}
.password-input {
  width: 100%;
  padding: 0.8rem;
  margin: 1rem 0;
  border: 1px solid #667eea;
  background: rgba(255,255,255,0.1);
  color: white;
  border-radius: 8px;
  font-size: 1rem;
}
.password-input::placeholder { color: #aaa; }
.password-input:focus {
  outline: none;
  border-color: #fff;
  box-shadow: 0 0 10px rgba(102,126,234,0.6);
}
#error-msg {
  color: #ff6b6b;
  margin-top: 0.5rem;
  font-size: 0.9rem;
  min-height: 1.2rem;
}

.contact-owner-msg {
  margin-top: 1.2rem;
  font-size: 0.95rem;
  color: #aaa;
  line-height: 1.5;
}
.contact-owner-msg strong {
  color: #fff;
  display: block;
  margin-bottom: 0.3rem;
}
.contact-owner-msg a {
  color: #667eea;
  text-decoration: none;
  font-weight: 500;
}
.contact-owner-msg a:hover {
  color: #fff;
  text-shadow: 0 0 8px rgba(102,126,234,0.6);
}

/* Certifications Slider */
.certifications-slider {
  position: relative;
  max-width: 1000px;
  margin: 3rem auto;
  overflow: hidden;
  border-radius: 20px;
  background: rgba(26, 26, 26, 0.8);
  padding: 2rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.certificates-container {
  display: flex;
  transition: transform 0.5s ease;
  gap: 1.5rem;
  padding: 1rem 0;
}

.cert-card {
  min-width: 300px;
  background: rgba(40,40,60,0.9);
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(102,126,234,0.2);
  transition: all 0.4s;
  border: 1px solid rgba(102,126,234,0.3);
}

.cert-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(102,126,234,0.4);
}

.cert-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 3px solid #667eea;
}

.cert-info {
  padding: 1rem;
  text-align: center;
  color: #fff;
}

.cert-info h3 {
  margin: 0.5rem 0;
  font-size: 1.1rem;
}

.cert-info p {
  color: #aaa;
  font-size: 0.9rem;
  margin: 0.3rem 0;
}

.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(102,126,234,0.8);
  color: white;
  border: none;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 10;
  transition: all 0.3s;
  backdrop-filter: blur(10px);
}

.slider-btn:hover {
  background: #667eea;
  transform: translateY(-50%) scale(1.1);
}

.prev-btn { left: 10px; }
.next-btn { right: 10px; }

.slider-dots {
  text-align: center;
  margin-top: 1rem;
}

.dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  margin: 0 6px;
  background: #444;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s;
}

.dot.active {
  background: #667eea;
  transform: scale(1.3);
}