/**
 * Cross-Browser Compatibility Styles
 * This file contains vendor prefixes and fallbacks for better browser support
 * Supports: IE11+, Edge 12+, Chrome 55+, Firefox 52+, Safari 10+
 */

/* Flexbox fallbacks for IE 10-11 */
.header-bar,
section,
.button-box-container,
.item-box,
.file-upload,
.checkbox-container {
  display: -ms-flexbox; /* IE 10 */
  display: -webkit-box; /* Old Safari */
  display: -webkit-flex; /* Safari 6.1+ */
  display: flex;
}

/* Flex wrap for IE 10-11 */
section {
  -ms-flex-wrap: wrap;
  -webkit-flex-wrap: wrap;
  flex-wrap: wrap;
}

/* Justify content for IE 10-11 */
.header-bar {
  -ms-flex-pack: justify;
  -webkit-justify-content: space-between;
  justify-content: space-between;
}

/* Align items for IE 10-11 */
.header-bar {
  -ms-flex-align: center;
  -webkit-align-items: center;
  align-items: center;
}

/* Box sizing for older browsers */
*,
*::before,
*::after {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

/* Transform with vendor prefixes */
.loading-spinner,
.rotate-element {
  -webkit-transform: rotate(360deg);
  -moz-transform: rotate(360deg);
  -ms-transform: rotate(360deg);
  -o-transform: rotate(360deg);
  transform: rotate(360deg);
}

/* Transition with vendor prefixes */
button,
input,
select,
textarea {
  -webkit-transition: all 0.3s ease;
  -moz-transition: all 0.3s ease;
  -ms-transition: all 0.3s ease;
  -o-transition: all 0.3s ease;
  transition: all 0.3s ease;
}

/* Appearance reset for form elements */
select,
input[type="text"],
input[type="email"],
input[type="tel"],
textarea {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

/* Placeholder color for cross-browser compatibility */
::-webkit-input-placeholder { /* Chrome/Opera/Safari */
  color: #999;
  opacity: 1;
}
::-moz-placeholder { /* Firefox 19+ */
  color: #999;
  opacity: 1;
}
:-ms-input-placeholder { /* IE 10+ */
  color: #999;
  opacity: 1;
}
:-moz-placeholder { /* Firefox 18- */
  color: #999;
  opacity: 1;
}

/* Calc() fallbacks for older browsers */
.item {
  width: 48%; /* Fallback */
  width: -webkit-calc(50% - 1rem);
  width: -moz-calc(50% - 1rem);
  width: calc(50% - 1rem);
}

.w-full,
h2,
h3,
.description {
  width: 99%; /* Fallback */
  width: -webkit-calc(100% - 1rem);
  width: -moz-calc(100% - 1rem);
  width: calc(100% - 1rem);
}

/* Min-height viewport fallback for IE */
.body-container {
  min-height: 100vh;
  min-height: -webkit-calc(100vh - 2rem);
  min-height: -moz-calc(100vh - 2rem);
  min-height: calc(100vh - 2rem);
}

/* Object-fit for images (IE fallback using background) */
img {
  max-width: 100%;
  height: auto;
}

/* User-select with vendor prefixes */
.no-select {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

/* Border-radius with vendor prefixes for very old browsers */
button,
input,
select,
textarea {
  -webkit-border-radius: 4px;
  -moz-border-radius: 4px;
  border-radius: 4px;
}

/* Box shadow with vendor prefixes */
.card,
.modal,
.dropdown {
  -webkit-box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  -moz-box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Linear gradient fallback for older browsers */
.gradient-bg {
  background: #f5f5f5; /* Fallback */
  background: -webkit-linear-gradient(top, #ffffff, #f5f5f5);
  background: -moz-linear-gradient(top, #ffffff, #f5f5f5);
  background: -ms-linear-gradient(top, #ffffff, #f5f5f5);
  background: -o-linear-gradient(top, #ffffff, #f5f5f5);
  background: linear-gradient(to bottom, #ffffff, #f5f5f5);
}

/* Fix for IE11 min-height flex container bug */
@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {
  .body-container {
    display: -ms-flexbox;
    -ms-flex-direction: column;
    min-height: 100vh;
  }
  
  main {
    -ms-flex: 1 1 auto;
  }
}

/* Fix for IE11 flexbox bugs */
@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
  .item {
    -ms-flex: 0 0 48%;
    flex: 0 0 48%;
  }
  
  select::-ms-expand {
    display: none;
  }
}

/* Safari-specific fixes */
@media not all and (min-resolution:.001dpcm) {
  @supports (-webkit-appearance:none) {
    select,
    input[type="date"] {
      padding-right: 2rem;
    }
  }
}

/* Firefox-specific fixes */
@-moz-document url-prefix() {
  select {
    padding-right: 1.5rem;
  }
}

/* Edge-specific fixes */
@supports (-ms-ime-align:auto) {
  select {
    padding-right: 1.5rem;
  }
}

/* Print styles for cross-browser compatibility */
@media print {
  *,
  *::before,
  *::after {
    background: transparent !important;
    color: #000 !important;
    -webkit-box-shadow: none !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }
  
  a,
  a:visited {
    text-decoration: underline;
  }
  
  img {
    page-break-inside: avoid;
  }
  
  p,
  h2,
  h3 {
    orphans: 3;
    widows: 3;
  }
  
  h2,
  h3 {
    page-break-after: avoid;
  }
}