* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: Arial, sans-serif;
  background-color: #f9f9f9;
  color: #333;
  line-height: 1.8;
}

header {
  background: #1e1e1e;
  color: #fff;
  padding: 20px 0;
  text-align: center;
}

nav {
  background: #333;
}

.menu-toggle {
  display: none;
  background: #333;
  color: #fff;
  border: none;
  width: 100%;
  padding: 15px;
  font-size: 18px;
  cursor: pointer;
}

nav ul {
  display: flex;
  justify-content: center;
  list-style: none;
  flex-wrap: wrap;
}

nav ul li a {
  color: #fff;
  text-decoration: none;
  padding: 15px 20px;
  display: block;
}

nav ul li a:hover {
  background: #555;
}

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  nav ul {
    display: none;
    flex-direction: column;
  }

  nav ul.show {
    display: flex;
  }

  nav ul li a {
    text-align: center;
    padding: 10px;
    border-top: 1px solid #444;
  }
}

.section {
  padding: 40px 20px;
  max-width: 1200px;
  margin: auto;
}

.section h2 {
  margin-bottom: 30px;
  font-size: 2rem;
  text-align: center;
}

.service {
  background: white;
  padding: 20px;
  border-radius: 8px;
  flex: 1 1 300px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  text-align: center;
}

.partner-logo {
  width: 200px;
  height: 100px;
  filter: grayscale(100%);
  transition: filter 0.3s ease;
}
.partner-logo:hover {
  filter: grayscale(0%);
}

.partners-slider {
  position: relative;
  overflow: hidden;
}

.partners-slider:hover .partners-track {
  animation-play-state: paused;
}
.partners-track {
  display: flex;
  gap: 40px;
  animation: scroll 20s linear infinite;
  width: max-content;
}
@keyframes scroll {
  0% { transform: translateX(100%); }
  100% { transform: translateX(-100%); }
}
.slider-prev,
.slider-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.5);
  color: white;
  border: none;
  padding: 10px;
  cursor: pointer;
  z-index: 10;
}
.slider-prev { left: 10px; }
.slider-next { right: 10px; }

footer {
  background: #1e1e1e;
  color: #fff;
  text-align: center;
  padding: 20px 0;
  margin-top: 40px;
}


.gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}

.gallery-item {
  flex: 1 1 calc(25% - 40px);
  max-width: calc(25% - 40px);
}

.gallery img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  transition: transform 0.3s;
  cursor: pointer;
}

.gallery img:hover {
  transform: scale(1.05);
}

.lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.8);
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.lightbox img {
  max-width: 90%;
  max-height: 90%;
  border-radius: 10px;
}

.lightbox.active {
  display: flex;
}