body {
  font-family: Arial, sans-serif;
}

.navbar {
  background-color: #1d1f20;
}

.navbar-brand {
  font-weight: bold;
  color: #fff;
}

.navbar-nav .nav-link {
  color: #fff !important;
}

.navbar-toggler-icon {
  filter: invert(1);
}

.navbar-toggler {
  border-color: #fff;
}

/* ===== Hero Section Fullscreen with Floating Bubbles ===== */
.hero-section {
  position: relative;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: #000;
  background: #ffffff;
  overflow: hidden;
}

.hero-content h1 {
  font-size: 3rem;
  margin-bottom: 10px;
}

.hero-content p {
  font-size: 1.2rem;
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.bubble-bg .bubble {
  position: absolute;
  bottom: -100px;
  background: rgba(40, 167, 69, 0.15);
  border-radius: 50%;
  animation: rise 10s infinite ease-in;
}

.bubble:nth-child(1) {
  left: 10%;
  width: 40px;
  height: 40px;
  animation-duration: 8s;
}

.bubble:nth-child(2) {
  left: 30%;
  width: 25px;
  height: 25px;
  animation-duration: 10s;
  animation-delay: 2s;
}

.bubble:nth-child(3) {
  left: 50%;
  width: 60px;
  height: 60px;
  animation-duration: 12s;
  animation-delay: 4s;
}

.bubble:nth-child(4) {
  left: 70%;
  width: 30px;
  height: 30px;
  animation-duration: 9s;
  animation-delay: 1s;
}

.bubble:nth-child(5) {
  left: 85%;
  width: 50px;
  height: 50px;
  animation-duration: 11s;
  animation-delay: 3s;
}

@keyframes rise {
  0% {
    transform: translateY(0);
    opacity: 0.7;
  }

  50% {
    opacity: 0.4;
  }

  100% {
    transform: translateY(-120vh);
    opacity: 0;
  }
}

/* Social Icons in Hero */
.hero-section .social-icons a {
  font-size: 1.8rem;
  margin: 0 10px;
  color: #28a745;
  transition: 0.3s;
}

.hero-section .social-icons a:hover {
  color: #fff;
  transform: scale(1.2);
}

/* Work Section */
.work-section {
  padding: 80px 0;
}

.work-card {
  border: 1px solid #ddd;
  border-radius: 10px;
  padding: 20px;
  text-align: center;
  transition: all 0.3s;
}

.work-card:hover {
  box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.2);
}

.highlight {
  color: #28a745;
  text-shadow: 0 0 10px rgba(40, 167, 69, 0.7);
  font-weight: bold;
}

/* Certificates Section */
.certificate-section {
  padding: 80px 0;
  background-color: #f8f9fa;
}

.certificate-card {
  border: 1px solid #ddd;
  border-radius: 10px;
  padding: 20px;
  text-align: center;
}

#contact .section-title {
  font-size: 2rem;
  font-weight: bold;
}

#contact pre {
  overflow-x: auto;
  max-height: 300px;
}

.cert-card {
  border: 1px solid #ddd;
  border-radius: 10px;
  padding: 20px;
  text-align: center;
  background: white;
  transition: all 0.3s ease;
  cursor: pointer;
}

.cert-card:hover {
  transform: translateY(-8px);
  box-shadow: 0px 6px 15px rgba(0, 0, 0, 0.15);
  border-color: #28a745;
}

.cert-card img {
  transition: 0.3s;
}

.cert-card:hover img {
  transform: scale(1.05);
}

.cert-card {
  border: 1px solid #ddd;
  border-radius: 10px;
  padding: 20px;
  text-align: center;
  background: white;
  transition: all 0.3s ease;
  cursor: pointer;
}

.cert-card:hover {
  transform: translateY(-8px);
  box-shadow: 0px 6px 15px rgba(0, 0, 0, 0.15);
  border-color: #28a745;
}

.cert-card img {
  transition: 0.3s;
}

.cert-card:hover img {
  transform: scale(1.05);
}

.cert-card {
  border: 1px solid #ddd;
  border-radius: 10px;
  padding: 20px;
  text-align: center;
  background: white;
  transition: all 0.3s ease;
  cursor: pointer;
}

.cert-card:hover {
  transform: translateY(-8px);
  box-shadow: 0px 6px 15px rgba(0, 0, 0, 0.15);
  border-color: #686c69;
}

.cert-card img {
  transition: 0.3s;
}

.cert-card:hover img {
  transform: scale(1.05);
}

/* Footer */
footer {
  background: #1d1f20;
  color: #fff;
  text-align: center;
  padding: 20px 0;
}