/* 
 * byblo.ai Website Styles
 * A bilingual (Arabic/English) website for AI role-play simulator
 */

/* ===== CSS Variables ===== */
:root {
  /* Color Palette */
  --primary: #1e5eff;
  --primary-dark: #0040d0;
  --primary-light: #5a8aff;
  --secondary: #00c2ff;
  --secondary-dark: #0095c2;
  --secondary-light: #70e4ff;
  --accent: #ff6b00;
  --dark: #1a1a2e;
  --gray-dark: #2d2d42;
  --gray: #4a4a68;
  --gray-light: #8a8aa3;
  --light: #f5f7ff;
  --white: #ffffff;
  --success: #00c853;
  --warning: #ffab00;
  --error: #ff3d00;
  
  /* Typography */
  --font-primary-en: 'Poppins', sans-serif;
  --font-secondary-en: 'Inter', sans-serif;
  --font-primary-ar: 'Tajawal', sans-serif;
  --font-secondary-ar: 'Cairo', sans-serif;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-xxl: 3rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1), 0 10px 10px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;
  
  /* Container widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-xxl: 1536px;
  
  /* Z-index layers */
  --z-below: -1;
  --z-normal: 1;
  --z-above: 10;
  --z-fixed: 100;
  --z-modal: 1000;
  --z-tooltip: 1500;
  --z-max: 9999;
}

/* ===== Reset & Base Styles ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary-en);
  color: var(--dark);
  background-color: var(--light);
  line-height: 1.5;
  overflow-x: hidden;
}

html[lang="ar"] body {
  font-family: var(--font-primary-ar);
  direction: rtl;
}

img, svg, video {
  display: block;
  max-width: 100%;
  height: auto;
}

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-dark);
}

button, .button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
  padding: 0;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

p {
  margin-bottom: var(--space-md);
}

/* ===== Typography ===== */
h1, .h1 {
  font-size: 3rem;
}

h2, .h2 {
  font-size: 2.5rem;
}

h3, .h3 {
  font-size: 2rem;
}

h4, .h4 {
  font-size: 1.5rem;
}

h5, .h5 {
  font-size: 1.25rem;
}

h6, .h6 {
  font-size: 1rem;
}

.text-sm {
  font-size: 0.875rem;
}

.text-xs {
  font-size: 0.75rem;
}

.text-lg {
  font-size: 1.125rem;
}

.text-xl {
  font-size: 1.25rem;
}

.text-2xl {
  font-size: 1.5rem;
}

.font-light {
  font-weight: 300;
}

.font-normal {
  font-weight: 400;
}

.font-medium {
  font-weight: 500;
}

.font-semibold {
  font-weight: 600;
}

.font-bold {
  font-weight: 700;
}

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

html[lang="ar"] .text-left {
  text-align: right;
}

html[lang="ar"] .text-right {
  text-align: left;
}

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

.container-sm {
  max-width: var(--container-sm);
}

.container-md {
  max-width: var(--container-md);
}

.container-lg {
  max-width: var(--container-lg);
}

.container-xl {
  max-width: var(--container-xl);
}

.container-xxl {
  max-width: var(--container-xxl);
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin-left: calc(-1 * var(--space-md));
  margin-right: calc(-1 * var(--space-md));
}

.col {
  flex: 1 0 0%;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

.col-auto {
  flex: 0 0 auto;
  width: auto;
}

.col-1 { flex: 0 0 auto; width: 8.333333%; }
.col-2 { flex: 0 0 auto; width: 16.666667%; }
.col-3 { flex: 0 0 auto; width: 25%; }
.col-4 { flex: 0 0 auto; width: 33.333333%; }
.col-5 { flex: 0 0 auto; width: 41.666667%; }
.col-6 { flex: 0 0 auto; width: 50%; }
.col-7 { flex: 0 0 auto; width: 58.333333%; }
.col-8 { flex: 0 0 auto; width: 66.666667%; }
.col-9 { flex: 0 0 auto; width: 75%; }
.col-10 { flex: 0 0 auto; width: 83.333333%; }
.col-11 { flex: 0 0 auto; width: 91.666667%; }
.col-12 { flex: 0 0 auto; width: 100%; }

/* Flexbox utilities */
.d-flex {
  display: flex;
}

.flex-column {
  flex-direction: column;
}

.flex-row {
  flex-direction: row;
}

html[lang="ar"] .flex-row {
  flex-direction: row-reverse;
}

.flex-wrap {
  flex-wrap: wrap;
}

.flex-nowrap {
  flex-wrap: nowrap;
}

.justify-content-start {
  justify-content: flex-start;
}

.justify-content-end {
  justify-content: flex-end;
}

.justify-content-center {
  justify-content: center;
}

.justify-content-between {
  justify-content: space-between;
}

.justify-content-around {
  justify-content: space-around;
}

.align-items-start {
  align-items: flex-start;
}

.align-items-end {
  align-items: flex-end;
}

.align-items-center {
  align-items: center;
}

.align-items-baseline {
  align-items: baseline;
}

.align-items-stretch {
  align-items: stretch;
}

/* Grid system */
.grid {
  display: grid;
  gap: var(--space-md);
}

.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }

/* Spacing utilities */
.m-0 { margin: 0; }
.m-1 { margin: var(--space-xs); }
.m-2 { margin: var(--space-sm); }
.m-3 { margin: var(--space-md); }
.m-4 { margin: var(--space-lg); }
.m-5 { margin: var(--space-xl); }
.m-6 { margin: var(--space-xxl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-xs); }
.mt-2 { margin-top: var(--space-sm); }
.mt-3 { margin-top: var(--space-md); }
.mt-4 { margin-top: var(--space-lg); }
.mt-5 { margin-top: var(--space-xl); }
.mt-6 { margin-top: var(--space-xxl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-xs); }
.mb-2 { margin-bottom: var(--space-sm); }
.mb-3 { margin-bottom: var(--space-md); }
.mb-4 { margin-bottom: var(--space-lg); }
.mb-5 { margin-bottom: var(--space-xl); }
.mb-6 { margin-bottom: var(--space-xxl); }

.ml-0 { margin-left: 0; }
.ml-1 { margin-left: var(--space-xs); }
.ml-2 { margin-left: var(--space-sm); }
.ml-3 { margin-left: var(--space-md); }
.ml-4 { margin-left: var(--space-lg); }
.ml-5 { margin-left: var(--space-xl); }
.ml-6 { margin-left: var(--space-xxl); }

.mr-0 { margin-right: 0; }
.mr-1 { margin-right: var(--space-xs); }
.mr-2 { margin-right: var(--space-sm); }
.mr-3 { margin-right: var(--space-md); }
.mr-4 { margin-right: var(--space-lg); }
.mr-5 { margin-right: var(--space-xl); }
.mr-6 { margin-right: var(--space-xxl); }

.mx-0 { margin-left: 0; margin-right: 0; }
.mx-1 { margin-left: var(--space-xs); margin-right: var(--space-xs); }
.mx-2 { margin-left: var(--space-sm); margin-right: var(--space-sm); }
.mx-3 { margin-left: var(--space-md); margin-right: var(--space-md); }
.mx-4 { margin-left: var(--space-lg); margin-right: var(--space-lg); }
.mx-5 { margin-left: var(--space-xl); margin-right: var(--space-xl); }
.mx-6 { margin-left: var(--space-xxl); margin-right: var(--space-xxl); }
.mx-auto { margin-left: auto; margin-right: auto; }

.my-0 { margin-top: 0; margin-bottom: 0; }
.my-1 { margin-top: var(--space-xs); margin-bottom: var(--space-xs); }
.my-2 { margin-top: var(--space-sm); margin-bottom: var(--space-sm); }
.my-3 { margin-top: var(--space-md); margin-bottom: var(--space-md); }
.my-4 { margin-top: var(--space-lg); margin-bottom: var(--space-lg); }
.my-5 { margin-top: var(--space-xl); margin-bottom: var(--space-xl); }
.my-6 { margin-top: var(--space-xxl); margin-bottom: var(--space-xxl); }
.my-auto { margin-top: auto; margin-bottom: auto; }

.p-0 { padding: 0; }
.p-1 { padding: var(--space-xs); }
.p-2 { padding: var(--space-sm); }
.p-3 { padding: var(--space-md); }
.p-4 { padding: var(--space-lg); }
.p-5 { padding: var(--space-xl); }
.p-6 { padding: var(--space-xxl); }

.pt-0 { padding-top: 0; }
.pt-1 { padding-top: var(--space-xs); }
.pt-2 { padding-top: var(--space-sm); }
.pt-3 { padding-top: var(--space-md); }
.pt-4 { padding-top: var(--space-lg); }
.pt-5 { padding-top: var(--space-xl); }
.pt-6 { padding-top: var(--space-xxl); }

.pb-0 { padding-bottom: 0; }
.pb-1 { padding-bottom: var(--space-xs); }
.pb-2 { padding-bottom: var(--space-sm); }
.pb-3 { padding-bottom: var(--space-md); }
.pb-4 { padding-bottom: var(--space-lg); }
.pb-5 { padding-bottom: var(--space-xl); }
.pb-6 { padding-bottom: var(--space-xxl); }

.pl-0 { padding-left: 0; }
.pl-1 { padding-left: var(--space-xs); }
.pl-2 { padding-left: var(--space-sm); }
.pl-3 { padding-left: var(--space-md); }
.pl-4 { padding-left: var(--space-lg); }
.pl-5 { padding-left: var(--space-xl); }
.pl-6 { padding-left: var(--space-xxl); }

.pr-0 { padding-right: 0; }
.pr-1 { padding-right: var(--space-xs); }
.pr-2 { padding-right: var(--space-sm); }
.pr-3 { padding-right: var(--space-md); }
.pr-4 { padding-right: var(--space-lg); }
.pr-5 { padding-right: var(--space-xl); }
.pr-6 { padding-right: var(--space-xxl); }

.px-0 { padding-left: 0; padding-right: 0; }
.px-1 { padding-left: var(--space-xs); padding-right: var(--space-xs); }
.px-2 { padding-left: var(--space-sm); padding-right: var(--space-sm); }
.px-3 { padding-left: var(--space-md); padding-right: var(--space-md); }
.px-4 { padding-left: var(--space-lg); padding-right: var(--space-lg); }
.px-5 { padding-left: var(--space-xl); padding-right: var(--space-xl); }
.px-6 { padding-left: var(--space-xxl); padding-right: var(--space-xxl); }

.py-0 { padding-top: 0; padding-bottom: 0; }
.py-1 { padding-top: var(--space-xs); padding-bottom: var(--space-xs); }
.py-2 { padding-top: var(--space-sm); padding-bottom: var(--space-sm); }
.py-3 { padding-top: var(--space-md); padding-bottom: var(--space-md); }
.py-4 { padding-top: var(--space-lg); padding-bottom: var(--space-lg); }
.py-5 { padding-top: var(--space-xl); padding-bottom: var(--space-xl); }
.py-6 { padding-top: var(--space-xxl); padding-bottom: var(--space-xxl); }

/* ===== Components ===== */
/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  white-space: nowrap;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--white);
  border: 2px solid var(--primary);
}

.btn-primary:hover, .btn-primary:focus {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--secondary);
  color: var(--white);
  border: 2px solid var(--secondary);
}

.btn-secondary:hover, .btn-secondary:focus {
  background-color: var(--secondary-dark);
  border-color: var(--secondary-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline-primary {
  background-color: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline-primary:hover, .btn-outline-primary:focus {
  background-color: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline-secondary {
  background-color: transparent;
  color: var(--secondary);
  border: 2px solid var(--secondary);
}

.btn-outline-secondary:hover, .btn-outline-secondary:focus {
  background-color: var(--secondary);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-link {
  background-color: transparent;
  color: var(--primary);
  border: none;
  padding-left: 0;
  padding-right: 0;
  text-decoration: underline;
}

.btn-link:hover, .btn-link:focus {
  color: var(--primary-dark);
  text-decoration: underline;
}

/* Cards */
.card {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.card-header {
  padding: var(--space-lg);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.card-body {
  padding: var(--space-lg);
}

.card-footer {
  padding: var(--space-lg);
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

/* Forms */
.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 500;
}

.form-control {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--dark);
  background-color: var(--white);
  background-clip: padding-box;
  border: 1px solid var(--gray-light);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  border-color: var(--primary);
  outline: 0;
  box-shadow: 0 0 0 0.2rem rgba(30, 94, 255, 0.25);
}

.form-select {
  display: block;
  width: 100%;
  padding: 0.75rem 2.5rem 0.75rem 1rem;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--dark);
  background-color: var(--white);
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%234a4a68' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 16px 12px;
  border: 1px solid var(--gray-light);
  border-radius: var(--radius-md);
  appearance: none;
}

html[lang="ar"] .form-select {
  padding: 0.75rem 1rem 0.75rem 2.5rem;
  background-position: left 1rem center;
}

.form-select:focus {
  border-color: var(--primary);
  outline: 0;
  box-shadow: 0 0 0 0.2rem rgba(30, 94, 255, 0.25);
}

.form-check {
  display: block;
  min-height: 1.5rem;
  padding-left: 1.5em;
  margin-bottom: 0.125rem;
}

html[lang="ar"] .form-check {
  padding-right: 1.5em;
  padding-left: 0;
}

.form-check-input {
  width: 1em;
  height: 1em;
  margin-top: 0.25em;
  vertical-align: top;
  background-color: var(--white);
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  border: 1px solid var(--gray-light);
  appearance: none;
}

.form-check-input[type="checkbox"] {
  border-radius: 0.25em;
}

.form-check-input[type="radio"] {
  border-radius: 50%;
}

.form-check-input:checked {
  background-color: var(--primary);
  border-color: var(--primary);
}

.form-check-input:checked[type="checkbox"] {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23ffffff' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M6 10l3 3l6-6'/%3e%3c/svg%3e");
}

.form-check-input:checked[type="radio"] {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='2' fill='%23ffffff'/%3e%3c/svg%3e");
}

/* ===== Utilities ===== */
/* Display */
.d-none { display: none !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-block { display: block !important; }
.d-grid { display: grid !important; }
.d-table { display: table !important; }
.d-table-row { display: table-row !important; }
.d-table-cell { display: table-cell !important; }

/* Text colors */
.text-primary { color: var(--primary) !important; }
.text-secondary { color: var(--secondary) !important; }
.text-accent { color: var(--accent) !important; }
.text-dark { color: var(--dark) !important; }
.text-gray { color: var(--gray) !important; }
.text-light { color: var(--light) !important; }
.text-white { color: var(--white) !important; }
.text-success { color: var(--success) !important; }
.text-warning { color: var(--warning) !important; }
.text-error { color: var(--error) !important; }

/* Background colors */
.bg-primary { background-color: var(--primary) !important; }
.bg-secondary { background-color: var(--secondary) !important; }
.bg-accent { background-color: var(--accent) !important; }
.bg-dark { background-color: var(--dark) !important; }
.bg-gray { background-color: var(--gray) !important; }
.bg-light { background-color: var(--light) !important; }
.bg-white { background-color: var(--white) !important; }
.bg-success { background-color: var(--success) !important; }
.bg-warning { background-color: var(--warning) !important; }
.bg-error { background-color: var(--error) !important; }

/* Border utilities */
.border { border: 1px solid rgba(0, 0, 0, 0.1) !important; }
.border-top { border-top: 1px solid rgba(0, 0, 0, 0.1) !important; }
.border-end { border-right: 1px solid rgba(0, 0, 0, 0.1) !important; }
.border-bottom { border-bottom: 1px solid rgba(0, 0, 0, 0.1) !important; }
.border-start { border-left: 1px solid rgba(0, 0, 0, 0.1) !important; }

html[lang="ar"] .border-end { border-left: 1px solid rgba(0, 0, 0, 0.1) !important; border-right: none !important; }
html[lang="ar"] .border-start { border-right: 1px solid rgba(0, 0, 0, 0.1) !important; border-left: none !important; }

.border-0 { border: 0 !important; }
.border-top-0 { border-top: 0 !important; }
.border-end-0 { border-right: 0 !important; }
.border-bottom-0 { border-bottom: 0 !important; }
.border-start-0 { border-left: 0 !important; }

html[lang="ar"] .border-end-0 { border-left: 0 !important; }
html[lang="ar"] .border-start-0 { border-right: 0 !important; }

.border-primary { border-color: var(--primary) !important; }
.border-secondary { border-color: var(--secondary) !important; }
.border-accent { border-color: var(--accent) !important; }
.border-dark { border-color: var(--dark) !important; }
.border-gray { border-color: var(--gray) !important; }
.border-light { border-color: var(--light) !important; }
.border-white { border-color: var(--white) !important; }

/* Border radius */
.rounded { border-radius: var(--radius-md) !important; }
.rounded-sm { border-radius: var(--radius-sm) !important; }
.rounded-lg { border-radius: var(--radius-lg) !important; }
.rounded-xl { border-radius: var(--radius-xl) !important; }
.rounded-circle { border-radius: 50% !important; }
.rounded-pill { border-radius: var(--radius-full) !important; }
.rounded-0 { border-radius: 0 !important; }

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

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

.top-0 { top: 0 !important; }
.right-0 { right: 0 !important; }
.bottom-0 { bottom: 0 !important; }
.left-0 { left: 0 !important; }

.start-0 { left: 0 !important; }
.end-0 { right: 0 !important; }

html[lang="ar"] .start-0 { right: 0 !important; left: auto !important; }
html[lang="ar"] .end-0 { left: 0 !important; right: auto !important; }

/* Shadows */
.shadow-none { box-shadow: none !important; }
.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }
.shadow-xl { box-shadow: var(--shadow-xl) !important; }

/* Width and height */
.w-25 { width: 25% !important; }
.w-50 { width: 50% !important; }
.w-75 { width: 75% !important; }
.w-100 { width: 100% !important; }
.w-auto { width: auto !important; }

.h-25 { height: 25% !important; }
.h-50 { height: 50% !important; }
.h-75 { height: 75% !important; }
.h-100 { height: 100% !important; }
.h-auto { height: auto !important; }

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

/* Z-index */
.z-below { z-index: var(--z-below) !important; }
.z-normal { z-index: var(--z-normal) !important; }
.z-above { z-index: var(--z-above) !important; }
.z-fixed { z-index: var(--z-fixed) !important; }
.z-modal { z-index: var(--z-modal) !important; }
.z-tooltip { z-index: var(--z-tooltip) !important; }
.z-max { z-index: var(--z-max) !important; }

/* ===== Media Queries ===== */
/* Small devices (landscape phones, 576px and up) */
@media (min-width: 576px) {
  .container-sm {
    max-width: 540px;
  }
  
  .d-sm-none { display: none !important; }
  .d-sm-inline { display: inline !important; }
  .d-sm-inline-block { display: inline-block !important; }
  .d-sm-block { display: block !important; }
  .d-sm-grid { display: grid !important; }
  .d-sm-table { display: table !important; }
  .d-sm-flex { display: flex !important; }
  
  .col-sm-auto { flex: 0 0 auto; width: auto; }
  .col-sm-1 { flex: 0 0 auto; width: 8.333333%; }
  .col-sm-2 { flex: 0 0 auto; width: 16.666667%; }
  .col-sm-3 { flex: 0 0 auto; width: 25%; }
  .col-sm-4 { flex: 0 0 auto; width: 33.333333%; }
  .col-sm-5 { flex: 0 0 auto; width: 41.666667%; }
  .col-sm-6 { flex: 0 0 auto; width: 50%; }
  .col-sm-7 { flex: 0 0 auto; width: 58.333333%; }
  .col-sm-8 { flex: 0 0 auto; width: 66.666667%; }
  .col-sm-9 { flex: 0 0 auto; width: 75%; }
  .col-sm-10 { flex: 0 0 auto; width: 83.333333%; }
  .col-sm-11 { flex: 0 0 auto; width: 91.666667%; }
  .col-sm-12 { flex: 0 0 auto; width: 100%; }
  
  .grid-cols-sm-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
  .grid-cols-sm-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-cols-sm-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid-cols-sm-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .grid-cols-sm-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .grid-cols-sm-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .grid-cols-sm-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) {
  .container-md {
    max-width: 720px;
  }
  
  .d-md-none { display: none !important; }
  .d-md-inline { display: inline !important; }
  .d-md-inline-block { display: inline-block !important; }
  .d-md-block { display: block !important; }
  .d-md-grid { display: grid !important; }
  .d-md-table { display: table !important; }
  .d-md-flex { display: flex !important; }
  
  .col-md-auto { flex: 0 0 auto; width: auto; }
  .col-md-1 { flex: 0 0 auto; width: 8.333333%; }
  .col-md-2 { flex: 0 0 auto; width: 16.666667%; }
  .col-md-3 { flex: 0 0 auto; width: 25%; }
  .col-md-4 { flex: 0 0 auto; width: 33.333333%; }
  .col-md-5 { flex: 0 0 auto; width: 41.666667%; }
  .col-md-6 { flex: 0 0 auto; width: 50%; }
  .col-md-7 { flex: 0 0 auto; width: 58.333333%; }
  .col-md-8 { flex: 0 0 auto; width: 66.666667%; }
  .col-md-9 { flex: 0 0 auto; width: 75%; }
  .col-md-10 { flex: 0 0 auto; width: 83.333333%; }
  .col-md-11 { flex: 0 0 auto; width: 91.666667%; }
  .col-md-12 { flex: 0 0 auto; width: 100%; }
  
  .grid-cols-md-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
  .grid-cols-md-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-cols-md-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid-cols-md-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .grid-cols-md-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .grid-cols-md-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .grid-cols-md-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) {
  .container-lg {
    max-width: 960px;
  }
  
  .d-lg-none { display: none !important; }
  .d-lg-inline { display: inline !important; }
  .d-lg-inline-block { display: inline-block !important; }
  .d-lg-block { display: block !important; }
  .d-lg-grid { display: grid !important; }
  .d-lg-table { display: table !important; }
  .d-lg-flex { display: flex !important; }
  
  .col-lg-auto { flex: 0 0 auto; width: auto; }
  .col-lg-1 { flex: 0 0 auto; width: 8.333333%; }
  .col-lg-2 { flex: 0 0 auto; width: 16.666667%; }
  .col-lg-3 { flex: 0 0 auto; width: 25%; }
  .col-lg-4 { flex: 0 0 auto; width: 33.333333%; }
  .col-lg-5 { flex: 0 0 auto; width: 41.666667%; }
  .col-lg-6 { flex: 0 0 auto; width: 50%; }
  .col-lg-7 { flex: 0 0 auto; width: 58.333333%; }
  .col-lg-8 { flex: 0 0 auto; width: 66.666667%; }
  .col-lg-9 { flex: 0 0 auto; width: 75%; }
  .col-lg-10 { flex: 0 0 auto; width: 83.333333%; }
  .col-lg-11 { flex: 0 0 auto; width: 91.666667%; }
  .col-lg-12 { flex: 0 0 auto; width: 100%; }
  
  .grid-cols-lg-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
  .grid-cols-lg-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-cols-lg-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid-cols-lg-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .grid-cols-lg-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .grid-cols-lg-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .grid-cols-lg-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
}

/* X-Large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
  .container-xl {
    max-width: 1140px;
  }
  
  .d-xl-none { display: none !important; }
  .d-xl-inline { display: inline !important; }
  .d-xl-inline-block { display: inline-block !important; }
  .d-xl-block { display: block !important; }
  .d-xl-grid { display: grid !important; }
  .d-xl-table { display: table !important; }
  .d-xl-flex { display: flex !important; }
  
  .col-xl-auto { flex: 0 0 auto; width: auto; }
  .col-xl-1 { flex: 0 0 auto; width: 8.333333%; }
  .col-xl-2 { flex: 0 0 auto; width: 16.666667%; }
  .col-xl-3 { flex: 0 0 auto; width: 25%; }
  .col-xl-4 { flex: 0 0 auto; width: 33.333333%; }
  .col-xl-5 { flex: 0 0 auto; width: 41.666667%; }
  .col-xl-6 { flex: 0 0 auto; width: 50%; }
  .col-xl-7 { flex: 0 0 auto; width: 58.333333%; }
  .col-xl-8 { flex: 0 0 auto; width: 66.666667%; }
  .col-xl-9 { flex: 0 0 auto; width: 75%; }
  .col-xl-10 { flex: 0 0 auto; width: 83.333333%; }
  .col-xl-11 { flex: 0 0 auto; width: 91.666667%; }
  .col-xl-12 { flex: 0 0 auto; width: 100%; }
  
  .grid-cols-xl-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
  .grid-cols-xl-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-cols-xl-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid-cols-xl-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .grid-cols-xl-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .grid-cols-xl-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .grid-cols-xl-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
}

/* XX-Large devices (larger desktops, 1400px and up) */
@media (min-width: 1400px) {
  .container-xxl {
    max-width: 1320px;
  }
  
  .d-xxl-none { display: none !important; }
  .d-xxl-inline { display: inline !important; }
  .d-xxl-inline-block { display: inline-block !important; }
  .d-xxl-block { display: block !important; }
  .d-xxl-grid { display: grid !important; }
  .d-xxl-table { display: table !important; }
  .d-xxl-flex { display: flex !important; }
  
  .col-xxl-auto { flex: 0 0 auto; width: auto; }
  .col-xxl-1 { flex: 0 0 auto; width: 8.333333%; }
  .col-xxl-2 { flex: 0 0 auto; width: 16.666667%; }
  .col-xxl-3 { flex: 0 0 auto; width: 25%; }
  .col-xxl-4 { flex: 0 0 auto; width: 33.333333%; }
  .col-xxl-5 { flex: 0 0 auto; width: 41.666667%; }
  .col-xxl-6 { flex: 0 0 auto; width: 50%; }
  .col-xxl-7 { flex: 0 0 auto; width: 58.333333%; }
  .col-xxl-8 { flex: 0 0 auto; width: 66.666667%; }
  .col-xxl-9 { flex: 0 0 auto; width: 75%; }
  .col-xxl-10 { flex: 0 0 auto; width: 83.333333%; }
  .col-xxl-11 { flex: 0 0 auto; width: 91.666667%; }
  .col-xxl-12 { flex: 0 0 auto; width: 100%; }
  
  .grid-cols-xxl-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
  .grid-cols-xxl-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-cols-xxl-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid-cols-xxl-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .grid-cols-xxl-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .grid-cols-xxl-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .grid-cols-xxl-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
}