/* Reset & Body */
.sdltech-body {
    margin: 0;
    padding: 0;
    font-family: 'Poppins', sans-serif;
    background: #000; /* black background */
    color: #ffeb3b;   /* yellow text */
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  /* Login Container */
  .sdltech-login-container {
    background: #111; /* dark box */
    padding: 40px 35px;
    border-radius: 12px;
    box-shadow: 0 0 25px rgba(255, 235, 59, 0.7);
    width: 100%;
    max-width: 380px; /* ensures responsiveness */
    text-align: center;
    animation: fadeIn 0.9s ease-in-out;
    box-sizing: border-box;
  }
  
  /* Title */
  .sdltech-login-title {
    margin-bottom: 25px;
    font-size: 26px;
    font-weight: bold;
    color: #ffeb3b;
    text-transform: uppercase;
    letter-spacing: 1px;
  }
  
  /* Input Fields */
  .sdltech-input {
    display: block;
    width: 100%; /* full width inside container */
    padding: 14px 16px;
    margin: 12px 0;
    border: 2px solid #ffeb3b;
    border-radius: 8px;
    background: #000;
    color: #ffeb3b;
    font-size: 15px;
    box-sizing: border-box; /* makes border + padding included */
    transition: all 0.3s ease;
  }
  
  .sdltech-input:focus {
    outline: none;
    border-color: #fdd835;
    box-shadow: 0 0 8px #fdd835;
  }
  
  /* Button */
  .sdltech-btn {
    display: block;
    width: 100%;
    padding: 14px;
    margin-top: 15px;
    background: #ffeb3b;
    border: none;
    border-radius: 8px;
    font-weight: bold;
    font-size: 16px;
    color: #000;
    cursor: pointer;
    text-transform: uppercase;
    transition: 0.3s;
    box-sizing: border-box;
  }
  
  .sdltech-btn:hover {
    background: #fdd835;
    box-shadow: 0 0 12px #ffeb3b;
  }
  
  /* Error Message */
  .sdltech-error {
    display: none;
    margin-top: 15px;
    font-size: 14px;
    color: #ff5252; /* red error text */
    font-weight: bold;
  }
  
  /* Animations */
  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
  }
  
  /* Responsive */
  @media (max-width: 500px) {
    .sdltech-login-container {
      padding: 30px 20px;
      max-width: 90%;
    }
  }