body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #fff;
  color: #333;
}
.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
}
.navbar {
  background: #003366;
  padding: 1rem 0;
}
.navbar .logo {
  color: #fff;
  font-weight: bold;
  font-size: 20px;
  text-decoration: none;
}
.navbar .nav-links {
  list-style: none;
  float: right;
  margin: 0;
}
.navbar .nav-links li {
  display: inline;
  margin-left: 20px;
}
.navbar .nav-links li a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
}
header.hero {
  background: #f4f4f4;
  padding: 60px 20px;
  text-align: center;
}
header.hero h1 {
  font-size: 2.5rem;
  color: #003366;
}
header.hero p {
  font-size: 1.2rem;
  margin: 20px 0;
}
section {
  padding: 40px 20px;
}
section h2 {
  color: #003366;
  margin-bottom: 20px;
}
.services, .projects-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}
.card {
  background: #fafafa;
  padding: 20px;
  border: 1px solid #ddd;
  border-radius: 8px;
  text-align: center;
}
.card img {
  max-width: 100%;
  border-radius: 4px;
}
footer {
  background: #003366;
  color: #fff;
  text-align: center;
  padding: 20px 0;
  margin-top: 40px;
}

.logo-img {
  height: 80px;
  vertical-align: middle;
  margin-right: 8px;
}

/* Navbar Hamburger Menu */
.menu-toggle {
  display: none;
  font-size: 28px;
  color: #fff;
  cursor: pointer;
}

@media (max-width: 768px) {
  .navbar .nav-links {
    display: none;
    flex-direction: column;
    background: #003366;
    position: absolute;
    top: 60px;
    right: 0;
    width: 200px;
    padding: 10px;
    border-radius: 4px;
  }

  .navbar .nav-links.show {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .navbar .nav-links li {
    margin: 10px 0;
  }
}

/* Highlight active nav link */
.nav-links a[aria-current="page"] {
  color: #FFAA00;
  font-weight: bold;
}

/* Slide-in animation for mobile nav */
@media (max-width: 768px) {
  .navbar .nav-links {
    transition: transform 0.3s ease, opacity 0.3s ease;
    transform: translateX(100%);
    opacity: 0;
  }

  .navbar .nav-links.show {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Overlay background when menu is open */
.overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 999;
}
.overlay.active {
  display: block;
}
.navbar .nav-links {
  z-index: 1000;
}

/* Smooth fade effect for overlay */
.overlay {
  opacity: 0;
  transition: opacity 0.3s ease;
  display: block; /* always block, hide via opacity + pointer-events */
  pointer-events: none;
}
.overlay.active {
  opacity: 1;
  pointer-events: auto;
}

/* Slide-in animation for nav items */
@media (max-width: 768px) {
  .navbar .nav-links li {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.3s ease, transform 0.3s ease;
  }
  .navbar .nav-links.show li {
    opacity: 1;
    transform: translateX(0);
  }
  .navbar .nav-links.show li:nth-child(1) { transition-delay: 0.1s; }
  .navbar .nav-links.show li:nth-child(2) { transition-delay: 0.2s; }
  .navbar .nav-links.show li:nth-child(3) { transition-delay: 0.3s; }
  .navbar .nav-links.show li:nth-child(4) { transition-delay: 0.4s; }
  .navbar .nav-links.show li:nth-child(5) { transition-delay: 0.5s; }
  .navbar .nav-links.show li:nth-child(6) { transition-delay: 0.6s; }
}

/* Bounce effect for nav items */
@keyframes slideBounce {
  0% { transform: translateX(30px); opacity: 0; }
  60% { transform: translateX(-10px); opacity: 1; }
  80% { transform: translateX(5px); }
  100% { transform: translateX(0); }
}

@media (max-width: 768px) {
  .navbar .nav-links li {
    opacity: 0;
    transform: translateX(30px);
  }
  .navbar .nav-links.show li {
    animation: slideBounce 0.5s forwards;
  }
  .navbar .nav-links.show li:nth-child(1) { animation-delay: 0.1s; }
  .navbar .nav-links.show li:nth-child(2) { animation-delay: 0.2s; }
  .navbar .nav-links.show li:nth-child(3) { animation-delay: 0.3s; }
  .navbar .nav-links.show li:nth-child(4) { animation-delay: 0.4s; }
  .navbar .nav-links.show li:nth-child(5) { animation-delay: 0.5s; }
  .navbar .nav-links.show li:nth-child(6) { animation-delay: 0.6s; }
}

/* Sliding background panel for mobile menu */
@media (max-width: 768px) {
  .navbar .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    height: 100%;
    width: 250px;
    background: #003366;
    flex-direction: column;
    padding-top: 60px;
    transform: translateX(100%);
    transition: transform 0.4s ease;
    box-shadow: -2px 0 8px rgba(0,0,0,0.3);
  }

  .navbar .nav-links.show {
    transform: translateX(0);
  }

  .navbar .nav-links li {
    margin: 15px 20px;
  }
}

/* Close button inside sliding panel */
.navbar .nav-links .close-btn {
  text-align: right;
  margin: 10px 15px;
}
.navbar .nav-links .close-btn a {
  font-size: 28px;
  color: #fff;
  text-decoration: none;
}

/* Sticky close button in sliding panel */
.navbar .nav-links .close-btn {
  position: absolute;
  top: 10px;
  right: 15px;
  margin: 0;
}
.navbar .nav-links .close-btn a {
  font-size: 32px;
  font-weight: bold;
  color: #fff;
  text-decoration: none;
}

/* Hover effect for close button */
.navbar .nav-links .close-btn a {
  transition: transform 0.2s ease, color 0.2s ease;
}
.navbar .nav-links .close-btn a:hover {
  color: #FFAA00;
  transform: scale(1.2);
}

/* Active nav link underline */
.nav-links a[aria-current="page"] {
  border-bottom: 2px solid #FFAA00;
  padding-bottom: 2px;
}

/* Social links footer */
.social-links {
  margin-top: 10px;
}
.social-links a {
  color: #fff;
  font-size: 22px;
  margin: 0 8px;
  transition: color 0.3s, transform 0.3s;
}
.social-links a:hover {
  color: #FFAA00;
  transform: scale(1.2);
}

/* Floating social icons (mobile only) */
.floating-social {
  position: fixed;
  bottom: 15px;
  right: 15px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 2000;
}

.floating-social a {
  background: #003366;
  color: #fff;
  font-size: 20px;
  padding: 10px;
  border-radius: 50%;
  text-align: center;
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
  transition: background 0.3s, transform 0.3s;
}

.floating-social a:hover {
  background: #FFAA00;
  transform: scale(1.2);
}

/* Show only on mobile */
@media (min-width: 769px) {
  .floating-social {
    display: none;
  }
}

/* Custom tooltip styling for floating social icons */
.floating-social a {
  position: relative;
}

.floating-social a::after {
  content: attr(data-tooltip);
  position: absolute;
  right: 120%;
  top: 50%;
  transform: translateY(-50%);
  background: #003366;
  color: #fff;
  padding: 5px 8px;
  border-radius: 4px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, transform 0.3s;
  font-size: 12px;
}

.floating-social a:hover::after {
  opacity: 1;
  transform: translateY(-50%) translateX(-5px);
}

/* Tooltip hover color change */
.floating-social a:hover::after {
  background: #FFAA00;
  color: #003366;
}

/* Tooltip slide-up animation */
.floating-social a::after {
  transform: translateY(-40%);
}
.floating-social a:hover::after {
  transform: translateY(-60%);
}

/* Bounce effect for floating social icons */
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-6px);
  }
  60% {
    transform: translateY(-3px);
  }
}

.floating-social a:hover {
  animation: bounce 0.6s;
}

/* Glow effect for floating social icons */
.floating-social a:hover {
  box-shadow: 0 0 12px #FFAA00, 0 0 20px #FFAA00;
}

/* Animated underline effect for all nav links */
.nav-links a {
  position: relative;
  text-decoration: none;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0%;
  height: 2px;
  background: #FFAA00;
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

/* Animated underline effect for footer social links */
.social-links a {
  position: relative;
  text-decoration: none;
}

.social-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0%;
  height: 2px;
  background: #FFAA00;
  transition: width 0.3s ease;
}

.social-links a:hover::after {
  width: 100%;
}

/* Animated underline effect for floating social icons */
.floating-social a {
  position: relative;
  text-decoration: none;
}

.floating-social a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -6px;
  transform: translateX(-50%);
  width: 0%;
  height: 2px;
  background: #FFAA00;
  transition: width 0.3s ease;
}

.floating-social a:hover::after {
  width: 80%;
}

/* Sync underline and tooltip animations */
.nav-links a::after,
.social-links a::after,
.floating-social a::after {
  transition: width 0.3s ease, transform 0.3s ease, opacity 0.3s ease;
}

.floating-social a::after {
  bottom: -10px;
}

.floating-social a:hover::after,
.social-links a:hover::after,
.nav-links a:hover::after {
  width: 100%;
}

.floating-social a::after {
  width: 0%;
}

.floating-social a:hover::after {
  width: 80%;
}

/* Back to Services button */
.back-btn {
  display: inline-block;
  margin-top: 20px;
  padding: 8px 16px;
  background: #003366;
  color: #fff;
  border-radius: 6px;
  text-decoration: none;
  transition: background 0.3s, color 0.3s;
}
.back-btn:hover {
  background: #FFAA00;
  color: #003366;
}

/* Sticky Back to Services button */
.back-btn {
  position: sticky;
  top: 80px; /* Adjust to sit below navbar */
  z-index: 1000;
}