/* Cross-Browser Compatibility Fixes */

/* Base Fixes */
html, body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  -webkit-text-size-adjust: 100%; /* Prevent font scaling in landscape */
  -ms-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Box Sizing Fix for IE8+ */
*, *:before, *:after {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

/* Firefox Specific Fixes */
@-moz-document url-prefix() {
  /* Fix for Firefox input fields */
  input, textarea {
    margin: 0;
  }
  
  /* Fix for Firefox form elements */
  select {
    text-indent: 0.01px;
    text-overflow: '';
    padding-right: 1em;
  }
  
  /* Fix for Firefox buttons */
  button::-moz-focus-inner {
    padding: 0;
    border: 0;
  }
}

/* Safari Specific Fixes */
@media screen and (-webkit-min-device-pixel-ratio: 0) {
  /* Fix for Safari input appearance */
  input[type="date"],
  input[type="time"],
  input[type="datetime-local"],
  input[type="month"] {
    -webkit-appearance: listbox;
  }
  
  /* Fix for Safari button padding */
  button {
    -webkit-appearance: none;
  }
}

/* Microsoft Edge Specific Fixes */
@supports (-ms-ime-align: auto) {
  /* Fix for Edge scrollbar */
  body {
    -ms-overflow-style: -ms-autohiding-scrollbar;
  }
  
  /* Fix for Edge input fields */
  input:-ms-input-placeholder {
    opacity: 1;
  }
}

/* Internet Explorer Specific Fixes */
@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
  /* Fix for IE flexbox issues */
  .d-flex {
    display: block;
    display: -ms-flexbox;
  }
  
  /* Fix for IE image scaling */
  img {
    -ms-interpolation-mode: bicubic;
  }
  
  /* Fix for IE form elements */
  input::-ms-clear,
  input::-ms-reveal {
    display: none;
  }
}

/* Fix for older browsers that don't support CSS variables */
@supports not (--custom: variable) {
  /* Fallback colors and values for browsers not supporting CSS variables */
  :root {
    --primary-color: #4154f1;
    --secondary-color: #2db6fa;
    --text-color: #212529;
  }
  
  .text-primary {
    color: #4154f1 !important;
  }
  
  .bg-primary {
    background-color: #4154f1 !important;
  }
  
  .btn-primary {
    background-color: #4154f1 !important;
    border-color: #4154f1 !important;
  }
}

/* Fix for responsiveness in older browsers */
@media only screen and (max-width: 768px) {
  .col-md-6 {
    width: 100%;
    float: none;
  }
}

/* Fix for CSS Grid in older browsers */
@supports not (display: grid) {
  .grid-container {
    display: flex;
    flex-wrap: wrap;
  }
  
  .grid-item {
    flex: 1 0 300px;
    margin: 10px;
  }
}

/* Fix for backdrop-filter in browsers that don't support it */
@supports not (backdrop-filter: blur(10px)) {
  .glassmorphism {
    background-color: rgba(255, 255, 255, 0.9) !important;
  }
}