* {
  box-sizing: border-box;
}

body {
  background-color: #f5f5f5;
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}

h1 {
  color: #1d2d4a;
  font-size: 3rem;
  text-align: center;
  margin: 2rem 0;
}

form {
  background-color: #fff;
  border: 1px solid #ccc;
  border-radius: 0.5rem;
  display: flex;
  flex-direction: column;
  margin: 0 auto;
  max-width: 600px;
  padding: 2rem;
}

label {
  color: #1d2d4a;
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

input[type="number"] {
  border: 1px solid #ccc;
  border-radius: 0.25rem;
  font-size: 1.2rem;
  padding: 0.5rem;
}

button {
  background-color: #1d2d4a;
  border: none;
  border-radius: 0.5rem;
  color: #fff;
  cursor: pointer;
  font-size: 1.2rem;
  margin-top: 1rem;
  padding: 0.5rem 1rem;
}

button:hover {
  background-color: #293f6f;
}

#result {
  background-color: #fff;
  border: 1px solid #ccc;
  border-radius: 0.5rem;
  margin: 0 auto;
  max-width: 600px;
  padding: 2rem;
  text-align: center;
}

p {
  color: #1d2d4a;
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

h2 {
  color: #1d2d4a;
  font-size: 2rem;
  margin-top: 2rem;
}



.header {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  background-color: #0077B5;
}

.logo {
  max-width: 100%;
  height: auto;
  margin-right: 20px;
}

.title {
  color: white;
  margin: 0;
  font-size: 36px;
  font-family: 'Montserrat', sans-serif;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 600;
}
.description {
  color: white;
}

.logo-container {
  flex: 1;
  text-align: center;
}

.logo {
  max-width: 100%;
  height: auto;
}

.title-container {
  flex: 2;
  text-align: center;
}

.title {
  color: white;
  margin: 0;
  font-size: 36px;
}

@media only screen and (max-width: 600px) {
  .logo-container {
    flex: 2;
  }
  
  .title-container {
    flex: 4;
  }
  
  .nav-links {
    flex: 3;
    position: absolute;
    top: 80px;
    right: 0;
    width: 100%;
    background-color: #0077B5;
    display: none;
    padding: 20px;
  }
  
  .nav-links ul {
    display: block;
    margin: 0;
    padding: 0;
  }
  
  .nav-links li {
    display: block;
    margin: 10px 0;
  }
  
  .hamburger {
    display: block;
    cursor: pointer;
    position: relative;
    z-index: 2;
    width: 30px;
    height: 30px;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .hamburger div {
    width: 20px;
    height: 2px;
    background-color: white;
    margin: 5px;
    transition: all 0.3s ease;
  }
  
  .change .hamburger div {
    transform: rotate(45deg);
    background-color: #0077B5;
  }
  
  .change .hamburger div:nth-child(2) {
    opacity: 0;
  }
  
  .change .hamburger div:nth-child(3) {
    transform: rotate(-45deg);
    background-color: #0077B5;
  }
}


.logo-container {
  flex: 1;
}

.logo {
  max-width: 100%;
  height: auto;
}

.title-container {
  flex: 2;
}

.title {
  color: white;
  margin: 0;
}

main {
  margin: 20px;
}

.form-label {
  display: block;
  margin-bottom: 10px;
  font-weight: bold;
}

.form-input {
  width: 100%;
  padding: 10px;
  font-size: 16px;
  border: 1px solid #ccc;
  border-radius: 5px;
  margin-bottom: 20px;
}

.button-container {
  display: flex;
  justify-content: center;
  margin-top: 40px;
}

.button {
  background-color: #0077B5;
  color: white;
  font-size: 18px;
  padding: 10px 30px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  margin-right: 10px;
  transition: all 0.3s ease;
}

.button:hover {
  background-color: #005D8F;
}

.calculate-button {
  background-color: #0077B5;
  color: white;
  font-size: 18px;
  padding: 10px 30px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  margin-right: 10px;
  transition: all 0.3s ease;
}

.calculate-button:hover {
  background-color: #005D8F;
}

.clear-button {
  background-color: #e74c3c;
  color: white;
  font-size: 18px;
  padding: 10px 30px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.clear-button:hover {
  background-color: #c0392b;
}

@media only screen and (max-width: 600px) {
  .button {
    width: 100%;
    margin-right: 0;
    margin-bottom: 10px;
  }
  
  .calculate-button {
    width: 100%;
    margin-right: 0;
    margin-bottom: 10px;
  }
  
  .clear-button {
    width: 100%;
  }
}


.form-button {
  background-color: #0077B5;
  color: white;
  padding: 10px 20px;
  border: none;
  border-radius: 5px;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.form-button:hover {
  background-color: #005E91;
}

#result {
  border: 2px solid #ccc;
  border-radius: 10px;
  margin-top: 20px;
  padding: 20px;
  text-align: center;
}

#result table {
  margin: 0 auto;
}

#result td {
  padding: 10px;
  font-size: 18px;
}

#result th {
  padding: 10px;
  font-size: 20px;
  color: #0f4d92;
}

#result tr:nth-child(even) {
  background-color: #f2f2f2;
}

#result tr:hover {
  background-color: #ddd;
}

.errors {
  color: red;
  text-align: center;
  margin-bottom: 20px;
}


footer {
  background-color: #F3F6FA;
  padding: 20px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
}

.footer-text {
  font-size: 14px;
  color: #666;
}


nav {
  flex: 1;
}

.nav-links {
  display: flex;
  justify-content: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  margin: 0 10px;
}

.nav-link a {
  text-decoration: none;
  color: #0077B5;
}

.footer-text {
  flex: 1;
  text-align: center;
}