body {
    background: #f5f7fa;
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    justify-content: center;
    align-items: center;
  }
  header {
    background: linear-gradient(to right, #f5c45b, #FF8800);
    color: rgb(0, 0, 0);
    padding: 1.5rem;
    text-align: left;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
  }
  header a img {
    height: 50px;
  }
  .auth-links {
    margin-left: auto; /* push to the far right */
    display: flex;
    align-items: center;
    gap: 1rem;
  }
  .auth-links span {
    display: flex;
    align-items: center;
    font-weight: 500;
  }
  .auth-links a {
    text-decoration: none;
    font-weight: bold;
    color: black;
    padding: 0.5rem 1rem;
    background: white;
    border-radius: 6px;
    transition: background 0.3s;
  }
  
  .auth-links a:hover {
    background: #005fa3;
    color: white;
  }
  .container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
  }
  form input, form button, form select {
    width: 100%;
    padding: 0.8rem;
    margin: 0.5rem 0;
    border: 1px solid #ccc;
    border-radius: 8px;
    box-sizing: border-box;
  }
  
  #resultSection {
    display: none;
    margin: 2rem auto;
    padding: 2rem;
    background: #e3f2fd;
    border-radius: 12px;
    text-align: center;
    font-size: 1.2rem;
  }

  .metrics-table {
    display: table;
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
  }
  .metrics-row {
    display: table-row;
  }
  .metrics-cell {
    display: table-cell;
    border: 1px solid #ddd;
    padding: 8px;
    text-align: center;
    font-family: Arial, sans-serif;
  }
  .metrics-cell.header {
    font-weight: bold;
    background-color: #f9f9f9;
  }

  .input-row {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
  }
  .input-row input {
    margin-right: 8px;
  }
  .input-row button {
    width: 2em;
    height: 2em;
    font-size: 1.2em;
    line-height: 1;
  }
  .input-row label {
    width: 100%;
  }
  

  .login-container {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
    margin: 2rem auto;
  }

  .login-container h2 {
    margin-bottom: 1.5rem;
    color: #333;
  }

  .login-container form input {
    width: 100%;
    padding: 0.8rem;
    margin: 0.5rem 0;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 1rem;
  }



  .login-container form button:hover {
    background-color: #005fa3;
    color: white;
  }

  .login-container .footer-text {
    margin-top: 1.5rem;
    font-size: 0.9rem;
  }

  .login-container .footer-text a {
    color: #FF8800;
    text-decoration: none;
  }

  .login-container .footer-text a:hover {
    text-decoration: underline;
  }


  .spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    display: none;  /* Hide spinner initially */
  }

  @keyframes spin {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(360deg); }
  }

  /* Center the spinner */
  .center {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
  }

  nav a {
    color: #fff;
    margin: 0 15px;
    text-decoration: none;
}

.hero {
    background: #f4f4f4;
    padding: 50px 20px;
    text-align: center;
    background-size: cover;
    background-position: center;
    animation: zoomIn 30s infinite; 

}
.hero h1 {
    margin-bottom: 10px;
}
.hero p {
    margin-bottom: 20px;
}
.my_btn {
    display: inline-block;
    padding: 10px 20px;
    background: #FE8800;
    color: #fff;
    text-decoration: none;
    transition: background 0.3s ease;
    border: 1px solid #FF8800;

}
.my_btn2 {
  display: inline-block;
  padding: 10px 20px;
  color:#FE8800;
  text-decoration: none;
  margin: 5px;
  border: 1px solid #FF8800;
  transition: background 0.3s ease;
}

.my_btn:hover  {
  background: #005fa3;
  border: 1px solid rgba(170, 255, 255, 0);
}
.my_btn2:hover  {
  color: #fff;
  border: 1px solid rgba(170, 255, 255, 0);
  background: #005fa3;
}

.section {
    padding: 30px 20px;
    max-width: 1000px;
    margin: auto;
}
.footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 20px 0;
    margin-top: 20px;
}

.section h2, .section h3 {
color: #333;
text-align: center;
}

.section-content {
display: flex;
flex-wrap: nowrap;
overflow-x: auto;
padding: 10px 0;
gap: 20px;
}

.card {
background: #fff;
border: 1px solid #ddd;
border-radius: 8px;
box-shadow: 0 2px 5px rgba(0,0,0,0.1);
padding: 20px;
min-width: 280px;
flex: 0 0 auto;
text-align: center;
}

.card h3 {
color: #FF8800;
margin-bottom: 15px;
}

.card ul, .card ol {
list-style: none;
padding: 0;
text-align: left;
}

.card ul li, .card ol li {
margin: 10px 0;
position: relative;
padding-left: 25px;
}

.card ul li::before, .card ol li::before {
content: '✔';
color: #FF8800;
position: absolute;
left: 0;
}

.card ol li::before {
content: counter(item) '.';
counter-increment: item;
font-weight: bold;
color: #f5c45b;
}

.card ol {
counter-reset: item;
}

.summary-box {
  background-color: #e7f3fe;
  border-left: 5px solid #007bff;
  padding: 20px;
  margin: 20px auto;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: #333;
  max-width: 800px;
  border-radius: 6px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.summary-box h3 {
  margin-top: 0;
  color: #0056b3;
  font-size: 1.3em;
}

.summary-box ul {
  margin: 10px 0 15px 20px;
  padding: 0;
}

.summary-box ul li {
  margin-bottom: 8px;
  line-height: 1.5;
}
.plot-note {
background-color: #e7f3fe;
padding: 12px;
border-left: 4px solid #007bff;
margin-bottom: 15px;
font-size: 14px;
color: #333;
}

.plot-description {
font-size: 15px;
line-height: 1.6;
color: #444;
}
.plot-section {
  margin-top: 40px;
  padding: 25px;
  background-color: #f9fcff;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  max-width: 800px;
}

.plot-section h2 {
  font-size: 24px;
  color: #004085;
  margin-bottom: 15px;
  border-left: 4px solid #007bff;
  padding-left: 10px;
}

.plot-description {
  font-size: 15px;
  line-height: 1.6;
  color: #333;
  margin-bottom: 25px;
}
.plot-wrapper {
display: flex;
justify-content: center;
padding: 30px 0;
}