:root { /* The :root is for setting universal variables */
    --md-sys-color-primary: #6750A4;
    --md-sys-color-on-primary: #FFFFFF;
    --md-sys-color-primary-container: #EADDFF;
    --md-sys-color-on-primary-container: #21005D;
  
    --md-sys-color-secondary: #625B71;
    --md-sys-color-on-secondary: #FFFFFF;
    --md-sys-color-secondary-container: #E8DEF8; 
    /* Add more as needed */

    --md-sys-color-surface-container-highest: #E6E0E9;
    --md-sys-color-outline: #79747E;
  
    --md-sys-color-background: #FEF7FF;
  }

/* Basic Reset */
*, *::before, *::after { 
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.container {
    max-width: 600px;
    padding: 20px;
    background-color: white;
    border-radius: 20px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

header {
    text-align: center;
    margin-bottom: 30px;
}

h1, h2 {
    color: #222; 
}

.certificate-select {
    margin-bottom: 20px;
}

.form-switch .form-check-input {
    background-color: var(--md-sys-color-surface-container-highest);/* Thumb off-state color */
    border-color: var(--md-sys-color-outline);
    border: 2px solid var(--md-sys-color-outline);
    border-radius: 20px; /* Rounded style */
}

.form-switch .form-check-input:checked {
    border-color: var(--md-sys-color-primary); /* Thumb on-state color */ 
    background-color: var(--md-sys-color-primary); /* Thumb on-state color */ 
  }
  
  .form-switch .form-check-input:checked + .form-check-label::before{
    background-color: var(--md-sys-color-primary-container); /* Track on-state color */ 
    border-color: var(--md-sys-color-primary-container); 
  }
  
  .form-switch .form-check-input:focus {
    /* border-color: var(--md-sys-color-primary); /* Optional focus indicator */
    box-shadow: 0 0 0 0.15rem rgba(var(--md-sys-color-primary-rgb), .25); 
  }

.btn-primary:enabled {
    background-color: var(--md-sys-color-primary);
    border-color: var(--md-sys-color-primary);
    border-radius: 20px; /* Softer corners */
    text-transform: uppercase; /* Uppercase text is common in MD3 */
    font-weight: 600; /* Slightly bolder font weight */
    padding: 8px 16px; /* Adjust padding if needed */
}

.btn:hover {
    background-color: var(--md-sys-color-on-primary-container);
    border-color: var(--md-sys-color-primary);
    /* Consider adding a subtle elevation effect on hover */
    box-shadow: 
    0px 2px 1px -1px rgba(0, 0, 0, 0.2),
    0px 1px 1px 0px rgba(0, 0, 0, 0.14), 
    0px 1px 3px 0px rgba(0, 0, 0, 0.12);
} 

.btn-primary:disabled {
    background-color: var(--md-sys-color-secondary);
    border-color: var(--md-sys-color-primary);
    border-radius: 20px; /* Softer corners */
    text-transform: uppercase; /* Uppercase text is common in MD3 */
    font-weight: 600; /* Slightly bolder font weight */
    padding: 8px 16px; /* Adjust padding if needed */
    cursor: not-allowed;
}

.btn {
    border-radius: 20px;
}
    
/* Dropdown Customization (Assuming Bootstrap-select) */
.bootstrap-select {
    border-radius: 20px; 
    text-transform: none; /* Override for the dropdown */
}

.bootstrap-select .dropdown-menu {
    color: rgba(var(--md-sys-color-primary-rgb), .25);
    border-radius: 50px;
    box-shadow: 
        0px 2px 1px -1px rgba(0, 0, 0, 0.2),
        0px 1px 1px 0px rgba(0, 0, 0, 0.14), 
        0px 1px 3px 0px rgba(0, 0, 0, 0.12);
}

.hidden {
    display: none;
}