:root {
  --primary-teal: #218388;
  --deep-navy: #173C4A;
  --light-teal: #A4D3D6;
  --soft-gray: #F5F7FA;
  --white: #FFFFFF;
}

body {
  font-family: 'Open Sans', Arial, sans-serif;
  color: var(--deep-navy);
  background: var(--soft-gray);
  margin: 0;
  padding: 0;
}

header {
  background: var(--white);
  box-shadow: 0 2px 8px rgba(23,60,74,0.04);
  position: relative;
  z-index: 100;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  position: relative;
}

.logo {
  height: 48px;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
  align-items: center;
}

.nav-links li a {
  text-decoration: none;
  color: var(--deep-navy);
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  transition: background 0.2s, color 0.2s;
}

.nav-links li a.active,
.nav-links li a:hover {
  background: var(--primary-teal);
  color: var(--white) !important;
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  gap: 5px;
  margin-left: auto;
}

.hamburger span {
  display: block;
  height: 4px;
  width: 100%;
  background: var(--deep-navy);
  border-radius: 2px;
  transition: all 0.3s;
}

/* Responsive nav */
@media (forced-colors: active) {
  .logo {
    forced-color-adjust: none;
  }
}

@media (max-width: 700px) {
  .navbar {
    flex-wrap: wrap;
    padding: 1rem;
  }
  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    background: var(--white);
    position: absolute;
    left: 0;
    top: 70px;
    box-shadow: 0 4px 16px rgba(33,131,136,0.08);
    z-index: 10;
  }
  .nav-links.open {
    display: flex;
  }
  .hamburger {
    display: flex;
  }
}

.hero {
  background: var(--deep-navy);
  color: var(--white);
  padding: 4rem 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  text-align: left;
}

.features, .solutions-content, .usecases-content {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
  padding: 2rem 1rem;
}

.card {
  background: var(--white);
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(33,131,136,0.08);
  padding: 2rem;
  flex: 1 1 150px;
  max-width: 350px;
  min-width: 260px;
  height: auto !important; /* Remove fixed height if present */
}
@media (max-width: 600px) {
  .card {
    padding-bottom: 0.5rem !important;
    padding-top: 0.5rem !important;
    padding-left: 0.5rem !important;
    padding-right: 0.5rem !important;
    margin-bottom: 0.5rem !important;
    height: auto !important; /* Remove fixed height if present */
  }
  .card__content, .card-body {
    padding-bottom: 0 !important;
    padding-top: 0.5rem !important;
    padding-left: 0.5rem !important;
    padding-right: 0.5rem !important;
  }
}

.page-header {
  background: var(--light-teal);
  padding: 2rem 1rem;
  text-align: center;
}

.about-content, .technology-content, .contact-content {
  max-width: 900px;
  margin: 2rem auto;
  background: var(--white);
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(33,131,136,0.08);
  padding: 2rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact-form input,
.contact-form textarea {
  padding: 0.8rem;
  border: 1px solid var(--light-teal);
  border-radius: 8px;
  font-size: 1rem;
  width: 100%;
}

.contact-form button {
  width: fit-content;
  align-self: flex-start;
  background: var(--primary-teal);
  color: var(--white);
  border: none;
  border-radius: 25px;
  padding: 0.75rem 1.5rem;
  font-weight: bold;
  cursor: pointer;
}

.contact-details p, .contact-details a {
  color: var(--deep-navy);
}

footer {
  background: var(--deep-navy);
  color: var(--white);
  text-align: center;
  padding: 2rem 1rem;
}

.logo-footer {
  height: 36px;
  margin-bottom: 1rem;
}

@media (max-width: 900px) {
  .features, .solutions-content, .usecases-content {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }
  .card {
    max-width: 100%;
  }
}

@media (max-width: 500px) {
  .about-content, .technology-content, .contact-content {
    padding: 1rem;
    border-radius: 8px;
  }
  .page-header {
    padding: 1rem 0.5rem;
  }
}

.contact-btn {
  background: var(--primary-teal);
  color: var(--white);
  border-radius: 25px;
  padding: 0.75rem 1.5rem;
  border: none;
  font-weight: bold;
  text-decoration: none;
  margin-right: 0.5rem;
  display: inline-block;
  transition: background 0.2s, color 0.2s;
}

.contact-btn:hover,
.contact-btn:focus {
  background: #17636d; /* Slightly darker for hover */
  color: var(--white);
}

.contact-btn-outline {
  background: var(--white);
  color: var(--primary-teal);
  border: 2px solid var(--primary-teal);
  border-radius: 25px;
  padding: 0.75rem 1.5rem;
  font-weight: bold;
  text-decoration: none;
  margin-right: 0.5rem;
  display: inline-block;
  transition: background 0.2s, color 0.2s;
}

.contact-btn-outline:hover,
.contact-btn-outline:focus {
  background: var(--primary-teal);
  color: var(--white);
}
.input {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid #A4D3D6;
  border-radius: 8px;
  font-size: 1rem;
  margin-bottom: 1rem;
  box-sizing: border-box;
}
.contact-btn {
  background: #218388;
  color: #fff;
  border-radius: 25px;
  padding: 0.75rem 1.5rem;
  border: none;
  font-weight: bold;
  cursor: pointer;
}
.contact-btn:hover {
  background: #17636d;
}