/* ========================================
   Main Style Sheet
   ======================================== */

/* Import all separated CSS files */
@import url('base.css');
@import url('animations.css');
@import url('layout.css');
@import url('components.css');
@import url('pages.css');
@import url('responsive.css');

/* ========================================
   Additional Global Styles
   ======================================== */

/* Ensure proper box-sizing for all elements */
*,
*::before,
*::after {
  box-sizing: border-box;
}

/* Smooth scrolling for the entire page */
html {
  scroll-behavior: smooth;
}

/* Ensure proper font rendering */
body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* ========================================
   Utility Classes
   ======================================== */

/* Text utilities */
.text-center {
  text-align: center;
}
.text-left {
  text-align: left;
}
.text-right {
  text-align: right;
}

.text-primary {
  color: #667eea;
}
.text-secondary {
  color: #6c757d;
}
.text-success {
  color: #28a745;
}
.text-danger {
  color: #dc3545;
}
.text-warning {
  color: #ffc107;
}
.text-info {
  color: #17a2b8;
}
.text-light {
  color: #f8f9fa;
}
.text-dark {
  color: #343a40;
}

/* Background utilities */
.bg-primary {
  background-color: #667eea;
}
.bg-secondary {
  background-color: #6c757d;
}
.bg-success {
  background-color: #28a745;
}
.bg-danger {
  background-color: #dc3545;
}
.bg-warning {
  background-color: #ffc107;
}
.bg-info {
  background-color: #17a2b8;
}
.bg-light {
  background-color: #f8f9fa;
}
.bg-dark {
  background-color: #343a40;
}

/* Display utilities */
.d-none {
  display: none;
}
.d-block {
  display: block;
}
.d-inline {
  display: inline;
}
.d-inline-block {
  display: inline-block;
}
.d-flex {
  display: flex;
}
.d-inline-flex {
  display: inline-flex;
}
.d-grid {
  display: grid;
}

/* Flex utilities */
.flex-row {
  flex-direction: row;
}
.flex-column {
  flex-direction: column;
}
.flex-wrap {
  flex-wrap: wrap;
}
.flex-nowrap {
  flex-wrap: nowrap;
}
.justify-start {
  justify-content: flex-start;
}
.justify-end {
  justify-content: flex-end;
}
.justify-center {
  justify-content: center;
}
.justify-between {
  justify-content: space-between;
}
.justify-around {
  justify-content: space-around;
}
.align-start {
  align-items: flex-start;
}
.align-end {
  align-items: flex-end;
}
.align-center {
  align-items: center;
}
.align-baseline {
  align-items: baseline;
}
.align-stretch {
  align-items: stretch;
}

/* Spacing utilities */
.m-0 {
  margin: 0;
}
.m-1 {
  margin: 0.25rem;
}
.m-2 {
  margin: 0.5rem;
}
.m-3 {
  margin: 1rem;
}
.m-4 {
  margin: 1.5rem;
}
.m-5 {
  margin: 3rem;
}

.mt-0 {
  margin-top: 0;
}
.mt-1 {
  margin-top: 0.25rem;
}
.mt-2 {
  margin-top: 0.5rem;
}
.mt-3 {
  margin-top: 1rem;
}
.mt-4 {
  margin-top: 1.5rem;
}
.mt-5 {
  margin-top: 3rem;
}

.mb-0 {
  margin-bottom: 0;
}
.mb-1 {
  margin-bottom: 0.25rem;
}
.mb-2 {
  margin-bottom: 0.5rem;
}
.mb-3 {
  margin-bottom: 1rem;
}
.mb-4 {
  margin-bottom: 1.5rem;
}
.mb-5 {
  margin-bottom: 3rem;
}

.ml-0 {
  margin-left: 0;
}
.ml-1 {
  margin-left: 0.25rem;
}
.ml-2 {
  margin-left: 0.5rem;
}
.ml-3 {
  margin-left: 1rem;
}
.ml-4 {
  margin-left: 1.5rem;
}
.ml-5 {
  margin-left: 3rem;
}

.mr-0 {
  margin-right: 0;
}
.mr-1 {
  margin-right: 0.25rem;
}
.mr-2 {
  margin-right: 0.5rem;
}
.mr-3 {
  margin-right: 1rem;
}
.mr-4 {
  margin-right: 1.5rem;
}
.mr-5 {
  margin-right: 3rem;
}

.p-0 {
  padding: 0;
}
.p-1 {
  padding: 0.25rem;
}
.p-2 {
  padding: 0.5rem;
}
.p-3 {
  padding: 1rem;
}
.p-4 {
  padding: 1.5rem;
}
.p-5 {
  padding: 3rem;
}

.pt-0 {
  padding-top: 0;
}
.pt-1 {
  padding-top: 0.25rem;
}
.pt-2 {
  padding-top: 0.5rem;
}
.pt-3 {
  padding-top: 1rem;
}
.pt-4 {
  padding-top: 1.5rem;
}
.pt-5 {
  padding-top: 3rem;
}

.pb-0 {
  padding-bottom: 0;
}
.pb-1 {
  padding-bottom: 0.25rem;
}
.pb-2 {
  padding-bottom: 0.5rem;
}
.pb-3 {
  padding-bottom: 1rem;
}
.pb-4 {
  padding-bottom: 1.5rem;
}
.pb-5 {
  padding-bottom: 3rem;
}

.pl-0 {
  padding-left: 0;
}
.pl-1 {
  padding-left: 0.25rem;
}
.pl-2 {
  padding-left: 0.5rem;
}
.pl-3 {
  padding-left: 1rem;
}
.pl-4 {
  padding-left: 1.5rem;
}
.pl-5 {
  padding-left: 3rem;
}

.pr-0 {
  padding-right: 0;
}
.pr-1 {
  padding-right: 0.25rem;
}
.pr-2 {
  padding-right: 0.5rem;
}
.pr-3 {
  padding-right: 1rem;
}
.pr-4 {
  padding-right: 1.5rem;
}
.pr-5 {
  padding-right: 3rem;
}

/* Width utilities */
.w-25 {
  width: 25%;
}
.w-50 {
  width: 50%;
}
.w-75 {
  width: 75%;
}
.w-100 {
  width: 100%;
}
.w-auto {
  width: auto;
}

/* Height utilities */
.h-25 {
  height: 25%;
}
.h-50 {
  height: 50%;
}
.h-75 {
  height: 75%;
}
.h-100 {
  height: 100%;
}
.h-auto {
  height: auto;
}

/* Position utilities */
.position-static {
  position: static;
}
.position-relative {
  position: relative;
}
.position-absolute {
  position: absolute;
}
.position-fixed {
  position: fixed;
}
.position-sticky {
  position: sticky;
}

/* Border utilities */
.border {
  border: 1px solid #dee2e6;
}
.border-0 {
  border: 0;
}
.border-top {
  border-top: 1px solid #dee2e6;
}
.border-right {
  border-right: 1px solid #dee2e6;
}
.border-bottom {
  border-bottom: 1px solid #dee2e6;
}
.border-left {
  border-left: 1px solid #dee2e6;
}

.border-primary {
  border-color: #667eea;
}
.border-secondary {
  border-color: #6c757d;
}
.border-success {
  border-color: #28a745;
}
.border-danger {
  border-color: #dc3545;
}
.border-warning {
  border-color: #ffc107;
}
.border-info {
  border-color: #17a2b8;
}
.border-light {
  border-color: #f8f9fa;
}
.border-dark {
  border-color: #343a40;
}

/* Border radius utilities */
.rounded {
  border-radius: 0.25rem;
}
.rounded-top {
  border-top-left-radius: 0.25rem;
  border-top-right-radius: 0.25rem;
}
.rounded-right {
  border-top-right-radius: 0.25rem;
  border-bottom-right-radius: 0.25rem;
}
.rounded-bottom {
  border-bottom-right-radius: 0.25rem;
  border-bottom-left-radius: 0.25rem;
}
.rounded-left {
  border-top-left-radius: 0.25rem;
  border-bottom-left-radius: 0.25rem;
}
.rounded-circle {
  border-radius: 50%;
}
.rounded-0 {
  border-radius: 0;
}

/* Shadow utilities */
.shadow-sm {
  box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}
.shadow {
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}
.shadow-lg {
  box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.175);
}
.shadow-none {
  box-shadow: none;
}

/* Overflow utilities */
.overflow-auto {
  overflow: auto;
}
.overflow-hidden {
  overflow: hidden;
}
.overflow-visible {
  overflow: visible;
}
.overflow-scroll {
  overflow: scroll;
}

/* Visibility utilities */
.visible {
  visibility: visible;
}
.invisible {
  visibility: hidden;
}

/* Cursor utilities */
.cursor-pointer {
  cursor: pointer;
}
.cursor-default {
  cursor: default;
}
.cursor-not-allowed {
  cursor: not-allowed;
}

/* User select utilities */
.user-select-all {
  user-select: all;
}
.user-select-auto {
  user-select: auto;
}
.user-select-none {
  user-select: none;
}

/* ========================================
   Print Utilities
   ======================================== */
@media print {
  .d-print-none {
    display: none !important;
  }
  .d-print-inline {
    display: inline !important;
  }
  .d-print-inline-block {
    display: inline-block !important;
  }
  .d-print-block {
    display: block !important;
  }
  .d-print-table {
    display: table !important;
  }
  .d-print-table-row {
    display: table-row !important;
  }
  .d-print-table-cell {
    display: table-cell !important;
  }
  .d-print-flex {
    display: flex !important;
  }
  .d-print-inline-flex {
    display: inline-flex !important;
  }
}

/* ========================================
   Screen Reader Utilities
   ======================================== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.sr-only-focusable:active,
.sr-only-focusable:focus {
  position: static;
  width: auto;
  height: auto;
  overflow: visible;
  clip: auto;
  white-space: normal;
}

/* ========================================
   Loading States
   ======================================== */
.loading {
  position: relative;
  pointer-events: none;
  opacity: 0.6;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid #f3f3f3;
  border-top: 2px solid #667eea;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* ========================================
   Focus Visible (for better accessibility)
   ======================================== */
.focus-visible:focus {
  outline: 2px solid #667eea;
  outline-offset: 2px;
}

/* ========================================
   Custom Scrollbar
   ======================================== */
.custom-scrollbar::-webkit-scrollbar {
  width: 8px;
}

.custom-scrollbar::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 4px;
}

.custom-scrollbar::-webkit-scrollbar-thumb {
  background: #c1c1c1;
  border-radius: 4px;
}

.custom-scrollbar::-webkit-scrollbar-thumb:hover {
  background: #a8a8a8;
}

/* ========================================
   Selection Styles
   ======================================== */
::selection {
  background-color: #667eea;
  color: white;
}

::-moz-selection {
  background-color: #667eea;
  color: white;
}