/* ========================================
   Aligner Portal - Custom Styles
   Color Palette:
   - Primary Navy: #21428A
   - Accent Blue: #2563EB
   - Background: #F1F5FC
   - Surface: #FFFFFF
   ======================================== */

/* === Root Variables === */
:root {
  --primary-navy: #21428A;
  --accent-blue: #2563EB;
  --bg-light: #F1F5FC;
  --surface-white: #FFFFFF;
  --text-dark: #1F2937;
  --text-muted: #6B7280;
  --success: #22C55E;
  --warning: #F59E0B;
  --danger: #EF4444;
  --border-light: #E5E7EB;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

@font-face {
    font-family: 'IRANSansX';
    src: url('../fonts/iran/fonts/woff2/IRANSansX-Light.woff2') format('woff2'), url('../fonts/iran/fonts/woff/IRANSansX-Light.woff') format('woff');
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: "bootstrap-icons";
    src: url("../icons/fonts/bootstrap-icons.woff2") format("woff2"), url("../icons/fonts/bootstrap-icons.woff") format("woff");
    font-weight: normal;
    font-style: normal;
}

/* === Base Styles === */
html {
  font-size: 14px;
  position: relative;
  min-height: 100%;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

body {
  margin-bottom: 60px;
  background-color: var(--bg-light);
  color: var(--text-dark);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
  color: var(--primary-navy);
  font-weight: 600;
  margin-bottom: 1rem;
}

.lead {
  color: var(--text-muted);
  font-size: 1.125rem;
}

/* === Links === */
a {
  color: var(--accent-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--primary-navy);
  text-decoration: none;
}

/* === Buttons === */
.btn {
  border-radius: 0.5rem;
  padding: 0.625rem 1.25rem;
  font-weight: 500;
  transition: all 0.2s ease;
  border: none;
}

.btn-primary {
  background-color: var(--accent-blue);
  color: var(--surface-white);
}

.btn-primary:hover {
  background-color: var(--primary-navy);
  color: var(--surface-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--text-muted);
  color: var(--surface-white);
}

.btn-secondary:hover {
  background-color: var(--text-dark);
  color: var(--surface-white);
}

.btn-success {
  background-color: var(--success);
  color: var(--surface-white);
}

.btn-success:hover {
  background-color: #16A34A;
  color: var(--surface-white);
}

.btn-danger {
  background-color: var(--danger);
  color: var(--surface-white);
}

.btn-danger:hover {
  background-color: #DC2626;
  color: var(--surface-white);
}

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

.btn-outline-primary:hover {
  background-color: var(--accent-blue);
  color: var(--surface-white);
}

/* === Cards === */
.card {
  background-color: var(--surface-white);
  border: none;
  border-radius: 0.75rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 1.5rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.card-header {
  background-color: var(--surface-white);
  border-bottom: 2px solid var(--bg-light);
  padding: 1.25rem 1.5rem;
  font-weight: 600;
  color: var(--primary-navy);
}

.card-body {
  padding: 1.5rem;
}

.card-footer {
  background-color: var(--surface-white);
  border-top: 1px solid var(--border-light);
  padding: 1rem 1.5rem;
}

/* === Badges === */
.badge {
  padding: 0.375rem 0.75rem;
  border-radius: 0.375rem;
  font-weight: 500;
  font-size: 0.875rem;
}

.sentence-number-badge {
   color: black;
}

.bg-primary {
    background-color: var(--accent-blue) !important;
}

.bg-secondary {
  background-color: var(--text-muted) !important;
}

.bg-success {
  background-color: var(--success) !important;
}

.bg-warning {
  background-color: var(--warning) !important;
}

.bg-danger {
  background-color: var(--danger) !important;
}

.bg-info {
  background-color: #3B82F6 !important;
}

/* === Navbar === */
.navbar {
  background-color: var(--surface-white) !important;
  box-shadow: var(--shadow-sm);
  padding: 1rem 0;
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--primary-navy) !important;
}

.navbar-brand:hover {
  color: var(--accent-blue) !important;
}

.nav-link {
  color: var(--text-dark) !important;
  font-weight: 500;
  padding: 0.5rem 1rem !important;
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: var(--accent-blue) !important;
}

/* === Footer === */
.footer {
  position: absolute;
  bottom: 0;
  width: 100%;
  white-space: nowrap;
  line-height: 60px;
  background-color: var(--surface-white);
  border-top: 1px solid var(--border-light);
  color: var(--text-muted);
}

/* === Forms === */
.form-control, .form-select {
  border: 2px solid var(--border-light);
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus, .form-select:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.25);
}

.form-label {
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: 0.5rem;
}

.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label {
  color: var(--accent-blue);
}

/* === Tables === */
.table {
  background-color: var(--surface-white);
  border-radius: 0.75rem;
  overflow: hidden;
}

.table thead th {
  background-color: var(--bg-light);
  color: var(--primary-navy);
  font-weight: 600;
  border-bottom: 2px solid var(--border-light);
  padding: 1rem;
}

.table tbody tr {
  transition: background-color 0.2s ease;
}

.table tbody tr:hover {
  background-color: var(--bg-light);
}

.table-striped tbody tr:nth-of-type(odd) {
  background-color: rgba(241, 245, 252, 0.5);
}

/* === Alerts === */
.alert {
  border: none;
  border-radius: 0.75rem;
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
}

.alert-success {
  background-color: #ECFDF5;
  color: #065F46;
  border-left: 4px solid var(--success);
}

.alert-danger {
  background-color: #FEF2F2;
  color: #991B1B;
  border-left: 4px solid var(--danger);
}

.alert-warning {
  background-color: #FFFBEB;
  color: #92400E;
  border-left: 4px solid var(--warning);
}

.alert-info {
  background-color: #EFF6FF;
  color: #1E40AF;
  border-left: 4px solid var(--accent-blue);
}

/* === Containers === */
.container {
  max-width: 1200px;
}

/* === Utility Classes === */
.text-primary {
  color: var(--primary-navy) !important;
}

.text-accent {
  color: var(--accent-blue) !important;
}

.text-muted {
  color: var(--text-muted) !important;
}

.bg-primary-light {
  background-color: var(--bg-light) !important;
}

.shadow-sm {
  box-shadow: var(--shadow-sm) !important;
}

.shadow-md {
  box-shadow: var(--shadow-md) !important;
}

.shadow-lg {
  box-shadow: var(--shadow-lg) !important;
}

/* === Hero Section === */
.hero {
  background: linear-gradient(135deg, var(--primary-navy) 0%, var(--accent-blue) 100%);
  color: var(--surface-white);
  padding: 4rem 0;
  border-radius: 1rem;
  margin-bottom: 3rem;
  text-align: center;
}

.hero h1 {
  color: var(--surface-white);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.hero .lead {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.25rem;
}

/* === Feature Cards === */
.feature-card {
  text-align: center;
  padding: 2rem;
  height: 100%;
}

.feature-card i {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--accent-blue);
}

.feature-card h5 {
  color: var(--primary-navy);
  margin-bottom: 1rem;
}

/* === Sentence Editor === */
.sentence-editor {
  font-family: 'Tahoma', 'Arial', sans-serif;
  direction: rtl;
  text-align: right;
  border: 2px solid var(--border-light);
  border-radius: 0.5rem;
  transition: border-color 0.2s ease;
}

.sentence-editor:focus {
  border-color: var(--accent-blue);
  outline: none;
}

.sentence-item {
  transition: background-color 0.2s ease;
  padding: 0.5rem;
  border-radius: 0.5rem;
}

.sentence-item:hover {
  background-color: var(--bg-light);
}

/* === Input Groups === */
.input-group-text {
  background-color: var(--bg-light);
  border: 2px solid var(--border-light);
  color: var(--primary-navy);
  font-weight: 600;
}

/* === Progress Bars === */
.progress {
  height: 1.5rem;
  border-radius: 0.75rem;
  background-color: var(--bg-light);
}

.progress-bar {
  background-color: var(--accent-blue);
  border-radius: 0.75rem;
}

/* === Modals === */
.modal-content {
  border: none;
  border-radius: 1rem;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  background-color: var(--bg-light);
  border-bottom: 2px solid var(--border-light);
  border-radius: 1rem 1rem 0 0;
}

.modal-title {
  color: var(--primary-navy);
  font-weight: 600;
}

/* === Pagination === */
.pagination .page-link {
  color: var(--accent-blue);
  border: 2px solid var(--border-light);
  margin: 0 0.25rem;
  border-radius: 0.5rem;
}

.pagination .page-link:hover {
  background-color: var(--bg-light);
  color: var(--primary-navy);
}

.pagination .page-item.active .page-link {
  background-color: var(--accent-blue);
  border-color: var(--accent-blue);
}

/* === Responsive Utilities === */
@media (max-width: 768px) {
  .hero {
    padding: 2rem 1rem;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .card-body {
    padding: 1rem;
  }

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

/* === Animation === */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.3s ease-in;
}

/* === Focus States === */
.btn:focus, 
.btn:active:focus, 
.btn-link.nav-link:focus, 
.form-control:focus, 
.form-check-input:focus {
  box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.25);
}

/* === Hover Effects === */
.hover-lift {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* === Scroll Margin for Hash Navigation === */
#textContentSection {
  scroll-margin-top: 100px; /* Account for sticky navbar and header */
}