body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background-color: #FDFBF7;
  color: #2B2B2B;
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

#main {
  transition: margin-left 0.5s;
}

main {
  flex: 1;
  padding: 60px 20px;
  max-width: 1000px;
  margin: auto;
  display: flex;
  flex-direction: column;
  gap: 80px;
  padding-top: 1px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: #1E3A5F;
  color: #F0F4F8;
  padding: 20px 40px;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.logo {
  font-size: 1.5em;
  font-weight: bold;
  text-decoration: none;
  color: #F0F4F8;
}

.hamburger {
  font-size: 1.5em;
  cursor: pointer;
}

.sidebar {
  height: 100%;
  width: 0;
  position: fixed;
  z-index: 999;
  top: 0;
  left: 0;
  background-color: #1E3A5F;
  overflow-x: hidden;
  overflow-y: hidden;
  transition: width 0.5s;
  padding-top: 80px;
}

.sidebar.open {
  width: 250px;
}

.sidebar.open ~ #main {
  margin-left: 250px;
}

.sidebar ul {
  list-style: none;
  padding: 0;
}

.sidebar ul li {
  padding: 15px 25px;
}

.sidebar ul li a {
  color: #B0BEC5;
  text-decoration: none;
  display: block;
}

.sidebar ul li a.active {
  font-weight: bold;
  color: #B0BEC5;
}

.dropdown .dropdown-toggle {
  cursor: pointer;
  color: #B0BEC5;
  display: block;
}

.dropdown-menu {
  display: none;
  padding-left: 15px;
  margin-top: 10px;
}

.dropdown-menu li {
  padding: 8px 0;
}

.dropdown-menu a {
  color: #D0D8DD;
  font-size: 0.95em;
}

.dropdown.open .dropdown-menu {
  display: block;
}

.product-section {
  background: #FDFBF7;
  border: 2px solid #168FDA;
  border-radius: 10px;
  padding: 40px;
  max-width: 650px;
  width: 100%;
  margin: 0 auto 40px auto;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.product-small {
  background: #FDFBF7;
  border: 2px solid #168FDA;
  border-radius: 10px;
  padding: 30px;
  width: 300px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  min-height: 300px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.product-split {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 40px;
  max-width: 1000px;
  margin: 0 auto;
}

.product-section h1 {
  font-size: 2.5rem;
  color: #168FDA;
  margin-bottom: 20px;
}

.product-section p {
  font-size: 1.2rem;
  color: #4A4A4A;
  margin-bottom: 30px;
}

.btn_notify {
  border: 2px solid #168FDA;
  color: #1A1A1A;
  background-color: transparent;
  padding: 12px 20px;
  border-radius: 6px;
  font-size: 16px;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.3s ease;
}

.btn_notify:hover {
  background-color: #168FDA;
  color: #F0FAF8;
}

.coming-tag {
  display: inline-block;
  padding: 10px 18px;
  background-color: #168FDA;
  color: #FFFFFF;
  border-radius: 6px;
  font-weight: bold;
  font-size: 1rem;
}

.split-box {
  background: #FDFBF7;
  border: 2px solid #168FDA;
  border-radius: 10px;
  padding: 30px;
  width: 300px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
}

.split-box:hover {
  transform: translateY(-6px);
}

.split-box h2 {
  font-size: 1.8rem;
  color: #168FDA;
  margin-bottom: 15px;
}

.split-box p {
  font-size: 1.1rem;
  color: #4A4A4A;
  margin-bottom: 20px;
}

.usecase-image {
  background-image: url('your-image.jpg');
  background-size: cover;
  background-position: center;
  width: 100%;
  height: 300px;
  border-radius: 12px;
  margin-bottom: 40px;
}

.usecase-section {
  width: 100%;
  margin-bottom: 40px;
  opacity: 0.4;
  transform: translateY(20px);
  transition: all 0.5s ease;
}

.usecase-section h3 {
  font-size: 2rem;
  color: #168FDA;
  margin-bottom: 15px;
}

.usecase-section p {
  font-size: 1.15rem;
  color: #4A4A4A;
  line-height: 1.7;
}

.use-cases {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  background-color: #F7F3EC;
  border-radius: 12px;
  padding: 40px;
}

.use-cases h2 {
  text-align: center;
  font-size: 2.4rem;
  color: #168FDA;
  margin-bottom: 80px;
}

.usecase-section.active {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {

  .product-split {
    flex-direction: column;
    align-items: center;
  }

  .usecase-image {
    width: 100%;
    float: none;
    margin: 0 0 30px 0;
    position: relative;
    top: 0;
    min-height: 300px;
  }

  .usecase-section {
    width: 100%;
    margin-bottom: 60px;
  }
}

footer {
  background-color: #E8E3D9;
  color: #2B2B2B;
  padding: 40px 20px;
  text-align: center;
  margin-top: 100px;
}

.footer-content {
  max-width: 800px;
  margin: 0 auto;
}

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

.social-media a {
  margin: 0 10px;
  color: #168FDA;
  text-decoration: none;
}

.footer-bottom {
  margin-top: 20px;
  font-size: 0.9em;
  color: #E8E3D9;
}