body {
  margin: 0;
  font-family: "Roboto", Arial, sans-serif;
  background: #f4f8fb;
  color: #222;
}
header {
  background: #fff;
  color: #0a2540;
  padding: 18px 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: box-shadow 0.2s;
}
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}
.logo {
  font-size: 2.2rem;
  font-weight: bold;
  letter-spacing: 2px;
  color: #1565c0;
  text-decoration: none;
  display: flex;
  align-items: center;
}
nav {
  float: right;
  display: flex;
  align-items: center;
}
nav a {
  color: #0a2540;
  text-decoration: none;
  margin-left: 32px;
  font-weight: 500;
  transition: color 0.2s;
  font-size: 1rem;
}
nav a:hover {
  color: #1565c0;
}
/* Responsive header */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 2rem;
  color: #0a2540;
  cursor: pointer;
}
@media (max-width: 900px) {
  header {
    left: 0;
    right: 0;
    width: 100vw;
    min-width: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-sizing: border-box;
  }
  .container {
    width: 100vw;
    min-width: 0;
    padding: 0 8px;
    margin: 0;
    box-sizing: border-box;
  }
  nav {
    position: fixed;
    top: 64px;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    width: 220px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    padding: 24px 0 24px 24px;
    transform: translateX(100%);
    transition: transform 0.3s;
    z-index: 1001;
    height: 100vh;
  }
  nav.open {
    transform: translateX(0);
  }
  nav a {
    margin: 16px 0;
    font-size: 1.1rem;
  }
  .menu-toggle {
    display: block;
  }
  .hero {
    padding: 48px 0 32px 0;
  }
  .hero-title {
    font-size: 2rem;
  }
  .hero-desc {
    font-size: 1rem;
    max-width: 100%;
  }
  .hero-btn {
    width: 100%;
    padding: 14px 0;
    font-size: 1rem;
  }
  .services {
    flex-direction: column;
    gap: 20px;
    margin: 24px auto 0 auto;
  }
  .service {
    max-width: 100%;
    min-width: 0;
    padding: 24px 12px;
  }
  .why-us {
    flex-direction: column;
    gap: 20px;
    margin: 32px auto 0 auto;
  }
  .why-us-item {
    max-width: 100%;
    min-width: 0;
    padding: 24px 12px;
  }
  .clients {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin: 32px auto 0 auto;
  }
  .client-logo {
    width: 120px;
    height: 48px;
    padding: 4px 4px;
  }
  .contact {
    padding: 24px 8px;
    max-width: 100%;
    margin: 32px auto 0 auto;
  }
}
@media (max-width: 600px) {
  .container {
    width: 100vw;
    padding: 0 4px;
  }
  .hero {
    padding: 32px 0 20px 0;
  }
  .hero-title {
    font-size: 1.3rem;
  }
  .hero-desc {
    font-size: 0.95rem;
  }
  .clients {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .client-logo {
    width: 100px;
    height: 40px;
    padding: 2px 2px;
  }
  .contact {
    padding: 16px 2px;
  }
  footer {
    padding: 18px 0 8px 0;
    font-size: 0.95rem;
  }
}
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 0 60px 0;
}
.hero-title {
  font-size: 2.8rem;
  font-weight: 700;
  color: #0a2540;
  margin-bottom: 18px;
}
.hero-desc {
  font-size: 1.25rem;
  color: #444;
  max-width: 600px;
  margin-bottom: 32px;
}
.hero-btn {
  background: #0a2540;
  color: #fff;
  padding: 16px 40px;
  border: none;
  border-radius: 4px;
  font-size: 1.1rem;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.2s;
}
.hero-btn:hover {
  background: #0d47a1;
}
.hero-img {
  max-width: 400px;
  width: 100%;
  margin-bottom: 32px;
  border-radius: 8px;
}
.services {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: center;
  margin: 40px auto 0 auto;
}
.service {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(10, 37, 64, 0.08);
  padding: 32px 24px;
  flex: 1 1 260px;
  max-width: 320px;
  min-width: 240px;
  text-align: center;
}
.service-icon {
  font-size: 2.5rem;
  color: #0a2540;
  margin-bottom: 16px;
}
.service-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.service-desc {
  color: #555;
  font-size: 1rem;
}
.why-us {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: center;
  margin: 60px auto 0 auto;
}
.why-us-item {
  background: #e3f2fd;
  border-radius: 12px;
  padding: 32px 24px;
  flex: 1 1 220px;
  max-width: 280px;
  min-width: 180px;
  text-align: center;
}
.why-us-icon {
  font-size: 2rem;
  color: #0a2540;
  margin-bottom: 10px;
}
.why-us-title {
  font-weight: 600;
  margin-bottom: 8px;
}
.why-us-desc {
  color: #333;
  font-size: 1rem;
}
.clients {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  justify-items: center;
  align-items: center;
  margin: 60px auto 0 auto;
}
.client-logo {
  width: 200px;
  height: 108px;
  object-fit: contain;
  border-radius: 6px;
  opacity: 0.8;
  background: #fff;
  box-shadow: 0 1px 4px rgba(10, 37, 64, 0.04);
  padding: 8px 12px;
  display: block;
}
.contact {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(10, 37, 64, 0.08);
  padding: 40px 32px;
  max-width: 600px;
  margin: 60px auto 0 auto;
}
.contact-title {
  font-size: 1.5rem;
  color: #0a2540;
  font-weight: 700;
  margin-bottom: 16px;
  text-align: center;
}
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact-form input,
.contact-form textarea {
  padding: 12px;
  border: 1px solid #b3c6e0;
  border-radius: 4px;
  font-size: 1rem;
}
.contact-form button {
  background: #0a2540;
  color: #fff;
  border: none;
  padding: 12px 0;
  border-radius: 4px;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.2s;
}
.contact-form button:hover {
  background: #0d47a1;
}
footer {
  background: #0a2540;
  color: #fff;
  text-align: center;
  padding: 32px 0 16px 0;
  font-size: 1rem;
  margin-top: 60px;
}
@media (max-width: 900px) {
  header {
    left: 0;
    right: 0;
    width: 100vw;
    min-width: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-sizing: border-box;
  }
  .container {
    width: 100vw;
    min-width: 0;
    padding: 0 8px;
    margin: 0;
    box-sizing: border-box;
  }
  nav {
    position: fixed;
    top: 64px;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    width: 220px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    padding: 24px 0 24px 24px;
    transform: translateX(100%);
    transition: transform 0.3s;
    z-index: 1001;
    height: 100vh;
  }
  nav.open {
    transform: translateX(0);
  }
  nav a {
    margin: 16px 0;
    font-size: 1.1rem;
  }
  .menu-toggle {
    display: block;
  }
  .hero {
    padding: 48px 0 32px 0;
  }
  .hero-title {
    font-size: 2rem;
  }
  .hero-desc {
    font-size: 1rem;
    max-width: 100%;
  }
  .hero-btn {
    width: 100%;
    padding: 14px 0;
    font-size: 1rem;
  }
  .services {
    flex-direction: column;
    gap: 20px;
    margin: 24px auto 0 auto;
  }
  .service {
    max-width: 100%;
    min-width: 0;
    padding: 24px 12px;
  }
  .why-us {
    flex-direction: column;
    gap: 20px;
    margin: 32px auto 0 auto;
  }
  .why-us-item {
    max-width: 100%;
    min-width: 0;
    padding: 24px 12px;
  }
  .clients {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin: 32px auto 0 auto;
  }
  .client-logo {
    width: 120px;
    height: 48px;
    padding: 4px 4px;
  }
  .contact {
    padding: 24px 8px;
    max-width: 100%;
    margin: 32px auto 0 auto;
  }
}
@media (max-width: 600px) {
  .container {
    width: 100vw;
    padding: 0 4px;
  }
  .hero {
    padding: 32px 0 20px 0;
  }
  .hero-title {
    font-size: 1.3rem;
  }
  .hero-desc {
    font-size: 0.95rem;
  }
  .clients {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .client-logo {
    width: 100px;
    height: 40px;
    padding: 2px 2px;
  }
  .contact {
    padding: 16px 2px;
  }
  footer {
    padding: 18px 0 8px 0;
    font-size: 0.95rem;
  }
}

.float {
  position: fixed;
  width: 60px;
  height: 60px;
  bottom: 40px;
  right: 40px;
  background-color: #25d366;
  color: #fff;
  border-radius: 50px;
  text-align: center;
  font-size: 30px;
  box-shadow: 2px 2px 3px #999;
  z-index: 100;
}

.my-float {
  margin-top: 16px;
}