/*
  TN Bootstrap-compat layer — styles legacy Bootstrap class names with TeoriNet tokens.
  Loaded WITHOUT Bootstrap CSS. Enables vendor Bootstrap removal.
*/

/* Reset bits Bootstrap used to provide */
*,
*::before,
*::after {
  box-sizing: border-box;
}

.container,
.container-fluid {
  width: 100%;
  margin-inline: auto;
  padding-inline: 1rem;
}

.container {
  max-width: 72rem;
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin-inline: -0.5rem;
}

.row > [class*="col"] {
  padding-inline: 0.5rem;
  width: 100%;
}

.col,
.col-12 {
  flex: 0 0 100%;
  max-width: 100%;
}

@media (min-width: 576px) {
  .col-sm-6 {
    flex: 0 0 50%;
    max-width: 50%;
  }
}

@media (min-width: 768px) {
  .col-md-4 {
    flex: 0 0 33.333%;
    max-width: 33.333%;
  }
  .col-md-6 {
    flex: 0 0 50%;
    max-width: 50%;
  }
  .col-md-8 {
    flex: 0 0 66.666%;
    max-width: 66.666%;
  }
  .col-md-10 {
    flex: 0 0 83.333%;
    max-width: 83.333%;
  }
  .col-md-12 {
    flex: 0 0 100%;
    max-width: 100%;
  }
}

@media (min-width: 992px) {
  .col-lg-4 {
    flex: 0 0 33.333%;
    max-width: 33.333%;
  }
  .col-lg-5 {
    flex: 0 0 41.666%;
    max-width: 41.666%;
  }
  .col-lg-6 {
    flex: 0 0 50%;
    max-width: 50%;
  }
  .col-lg-7 {
    flex: 0 0 58.333%;
    max-width: 58.333%;
  }
  .col-lg-8 {
    flex: 0 0 66.666%;
    max-width: 66.666%;
  }
}

@media (min-width: 1200px) {
  .col-xl-3 {
    flex: 0 0 25%;
    max-width: 25%;
  }
  .col-xl-4 {
    flex: 0 0 33.333%;
    max-width: 33.333%;
  }
  .col-xl-9 {
    flex: 0 0 75%;
    max-width: 75%;
  }
}

.g-2 {
  --tn-g: 0.5rem;
}
.g-3 {
  --tn-g: 1rem;
}
.g-4 {
  --tn-g: 1.5rem;
}
.row.g-2,
.row.g-3,
.row.g-4 {
  margin-inline: calc(var(--tn-g, 0.5rem) * -0.5);
}
.row.g-2 > [class*="col"],
.row.g-3 > [class*="col"],
.row.g-4 > [class*="col"] {
  padding-inline: calc(var(--tn-g, 0.5rem) * 0.5);
  margin-bottom: var(--tn-g, 0.5rem);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 2.5rem;
  padding: 0.45rem 1rem;
  border-radius: 0.625rem;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.875rem;
  line-height: 1.35;
  text-decoration: none;
  cursor: pointer;
  background: var(--tn-surface-subtle, #eef2f6);
  color: var(--tn-ink, #0f172a);
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--tn-focus-ring, 0 0 0 3px rgba(0, 122, 255, 0.35));
}

.btn:disabled,
.btn.disabled {
  opacity: 0.5;
  pointer-events: none;
}

.btn-primary,
.btn-tk-solid {
  background: var(--tn-accent, #007AFF);
  color: #fff;
}

.btn-primary:hover,
.btn-tk-solid:hover {
  background: var(--tn-accent-hover, #0066D6);
  color: #fff;
}

.btn-secondary,
.btn-dark {
  background: var(--tn-ink, #0f172a);
  color: #fff;
}

.btn-outline-secondary,
.btn-tk-ghost {
  background: transparent;
  border-color: var(--tn-line-strong, #cbd5e1);
  color: var(--tn-ink, #0f172a);
}

.btn-outline-primary {
  background: transparent;
  border-color: var(--tn-accent, #007AFF);
  color: var(--tn-accent, #007AFF);
}

.btn-light {
  background: #fff;
  color: var(--tn-ink, #0f172a);
}

.btn-link {
  background: transparent;
  color: var(--tn-ink, #0f172a);
  border: 0;
  min-height: auto;
  padding: 0;
}

.btn-sm {
  min-height: 2.1rem;
  padding: 0.25rem 0.65rem;
  font-size: 0.8125rem;
}

.btn-lg,
.btn-large,
.btn-hero {
  min-height: 3rem;
  padding: 0.65rem 1.25rem;
}

.btn-block,
.w-100 {
  width: 100%;
}

.d-grid {
  display: grid;
}
.d-flex {
  display: flex;
}
.d-inline {
  display: inline;
}
.d-inline-block {
  display: inline-block;
}
.d-none {
  display: none !important;
}
.d-block {
  display: block;
}

.flex-column {
  flex-direction: column;
}
.flex-wrap {
  flex-wrap: wrap;
}
.align-items-center {
  align-items: center;
}
.align-items-lg-center {
  align-items: center;
}
.justify-content-between {
  justify-content: space-between;
}
.justify-content-center {
  justify-content: center;
}
.justify-content-end {
  justify-content: flex-end;
}
.gap-1 {
  gap: 0.25rem;
}
.gap-2 {
  gap: 0.5rem;
}
.gap-3 {
  gap: 0.75rem;
}
.gap-lg-1 {
  gap: 0.25rem;
}

.ms-auto {
  margin-inline-start: auto;
}
.ms-lg-2 {
  margin-inline-start: 0.5rem;
}
.me-1 {
  margin-inline-end: 0.25rem;
}
.me-2 {
  margin-inline-end: 0.5rem;
}
.mt-1 {
  margin-top: 0.25rem;
}
.mt-2 {
  margin-top: 0.5rem;
}
.mt-3 {
  margin-top: 0.75rem;
}
.mt-4 {
  margin-top: 1rem;
}
.mb-0 {
  margin-bottom: 0 !important;
}
.mb-1 {
  margin-bottom: 0.25rem;
}
.mb-2 {
  margin-bottom: 0.5rem;
}
.mb-3 {
  margin-bottom: 0.75rem;
}
.mb-4 {
  margin-bottom: 1rem;
}
.mb-5 {
  margin-bottom: 1.5rem;
}
.p-0 {
  padding: 0 !important;
}
.p-2 {
  padding: 0.5rem;
}
.p-3 {
  padding: 0.75rem;
}
.p-4 {
  padding: 1rem;
}
.px-2 {
  padding-inline: 0.5rem;
}
.px-3 {
  padding-inline: 0.75rem;
}
.py-1 {
  padding-block: 0.25rem;
}
.py-5 {
  padding-block: 3rem;
}
.mx-auto {
  margin-inline: auto;
}

.text-center {
  text-align: center;
}
.text-muted {
  color: var(--tn-ink-muted, #475569) !important;
}
.text-danger {
  color: var(--tn-danger, #b91c1c) !important;
}
.text-success {
  color: var(--tn-success, #047857) !important;
}
.text-white {
  color: #fff !important;
}
.small {
  font-size: 0.875rem;
}
.fw-bold,
.fw-semibold {
  font-weight: 700;
}
.h3 {
  font-size: 1.5rem;
}
.h4 {
  font-size: 1.25rem;
}
.h5 {
  font-size: 1.125rem;
}
.h6 {
  font-size: 1rem;
}
.lead {
  font-size: 1.1rem;
}
.list-unstyled {
  list-style: none;
  padding: 0;
  margin: 0;
}
.img-fluid {
  max-width: 100%;
  height: auto;
}
.border {
  border: 1px solid var(--tn-line, #e2e8f0);
}
.border-0 {
  border: 0 !important;
}
.border-2 {
  border-width: 2px;
}
.shadow-lg {
  box-shadow: var(--tn-shadow-sm, 0 4px 14px rgba(11, 18, 32, 0.06));
}
.rounded {
  border-radius: 0.5rem;
}
.float-end {
  float: inline-end;
}
.bg-primary {
  background: var(--tn-accent, #007AFF) !important;
  color: #fff !important;
}

.bg-dark {
  background: var(--tn-ink, #0f172a) !important;
  color: #fff !important;
}
.bg-white {
  background: #fff !important;
}
.bg-danger {
  background: var(--tn-danger, #b91c1c);
}
.bg-secondary {
  background: var(--tn-ink-muted, #64748b);
}
.bg-success {
  background: var(--tn-success, #047857);
}

/* Forms */
.form-control,
.form-select,
.form-select-sm {
  display: block;
  width: 100%;
  min-height: 2.75rem;
  padding: 0.5rem 0.75rem;
  font-size: 1rem;
  border: 1px solid var(--tn-line, #e2e8f0);
  border-radius: 0.625rem;
  background: #fff;
  color: var(--tn-ink, #0f172a);
}

.form-select-sm {
  min-height: 2.25rem;
  font-size: 0.875rem;
}

.form-control:focus,
.form-select:focus {
  outline: none;
  border-color: var(--tn-accent, #007AFF);
  box-shadow: var(--tn-focus-ring, 0 0 0 3px rgba(0, 122, 255, 0.35));
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.form-check {
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
}

.invalid-feedback,
.text-danger.small {
  color: var(--tn-danger, #b91c1c);
}

/* Cards / alerts / badges */
.card {
  background: #fff;
  border: 1px solid var(--tn-line, #e2e8f0);
  border-radius: 0.875rem;
  box-shadow: var(--tn-shadow-xs, 0 1px 2px rgba(11, 18, 32, 0.05));
}

.card-body {
  padding: 1.15rem;
}

.card-footer {
  padding: 0.85rem 1.15rem;
  border-top: 1px solid var(--tn-line, #e2e8f0);
}

.card-subtitle {
  color: var(--tn-ink-muted, #475569);
}

.alert {
  padding: 0.85rem 1rem;
  border-radius: 0.625rem;
  border: 1px solid var(--tn-line, #e2e8f0);
  background: #fff;
}

.alert-danger {
  background: var(--tn-danger-soft, #fef2f2);
  border-color: #fecaca;
  color: var(--tn-danger, #b91c1c);
}

.alert-success {
  background: var(--tn-success-soft, #ecfdf5);
  border-color: #a7f3d0;
  color: var(--tn-success, #047857);
}

.alert-warning {
  background: var(--tn-warning-soft, #fffbeb);
  border-color: #fde68a;
  color: var(--tn-warning, #92400e);
}

.alert-info {
  background: var(--tn-info-soft, #eff6ff);
  border-color: #bfdbfe;
  color: var(--tn-info, #1d4ed8);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
}

/* Tables */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.table th,
.table td {
  padding: 0.55rem 0.65rem;
  border-bottom: 1px solid var(--tn-line, #e2e8f0);
  text-align: start;
  vertical-align: top;
}

.table-striped tbody tr:nth-child(odd) {
  background: var(--tn-surface-muted, #f5f7fa);
}

.table-bordered th,
.table-bordered td {
  border: 1px solid var(--tn-line, #e2e8f0);
}

.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* Nav / collapse / dropdown / modal */
.navbar {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
}

.navbar > .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.navbar-toggler {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 0.5rem;
  padding: 0.4rem 0.55rem;
  color: #fff;
}

.navbar-toggler-icon {
  display: block;
  width: 1.25rem;
  height: 1.25rem;
  background: linear-gradient(#fff, #fff) center / 100% 2px no-repeat,
    linear-gradient(#fff, #fff) center 35% / 100% 2px no-repeat,
    linear-gradient(#fff, #fff) center 65% / 100% 2px no-repeat;
}

.navbar-nav {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.nav-link {
  display: inline-block;
  padding: 0.5rem 0.75rem;
  text-decoration: none;
  color: var(--tn-ink, #0f172a);
}

.text-primary {
  color: var(--tn-ink, #0f172a) !important;
}

.link-primary {
  color: var(--tn-ink, #0f172a) !important;
}

a.link-primary:hover,
a.text-primary:hover {
  color: #007AFF !important;
}

/* Generic collapse — used by FAQ / accordion / navbar panels.
   Undo Tailwind's `.collapse { visibility: collapse }` if present in tn.css. */
.collapse {
  visibility: visible;
}
.collapse:not(.show) {
  display: none;
}

/* Mobile: collapse nav until toggled */
@media (max-width: 991.98px) {
  .navbar-expand-lg .navbar-collapse.collapse:not(.show) {
    display: none !important;
  }
  .navbar-expand-lg .navbar-collapse.show {
    display: block !important;
    width: 100%;
    flex-basis: 100%;
    padding-top: 0.75rem;
  }
}

/* Desktop: always show expanded nav; hide hamburger */
@media (min-width: 992px) {
  .navbar-expand-lg .navbar-toggler {
    display: none !important;
  }
  .navbar-expand-lg .navbar-collapse,
  .navbar-expand-lg .navbar-collapse.collapse,
  .navbar-expand-lg .navbar-collapse.collapse:not(.show) {
    display: flex !important;
    visibility: visible !important;
    flex-basis: auto;
    flex-grow: 1;
    align-items: center;
  }
  .navbar-expand-lg .navbar-nav {
    flex-direction: row;
    align-items: center;
    margin-inline-start: auto;
  }
}

.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  inset-inline-end: 0;
  top: 100%;
  z-index: 50;
  display: none;
  min-width: 12rem;
  margin-top: 0.35rem;
  padding: 0.4rem;
  background: #fff;
  border: 1px solid var(--tn-line, #e2e8f0);
  border-radius: 0.625rem;
  box-shadow: var(--tn-shadow-sm, 0 4px 14px rgba(11, 18, 32, 0.06));
}

.dropdown-menu.show,
.dropdown.show > .dropdown-menu {
  display: block;
}

.dropdown-menu-end {
  inset-inline-end: 0;
  inset-inline-start: auto;
}

.dropdown-item {
  display: block;
  width: 100%;
  padding: 0.5rem 0.65rem;
  border-radius: 0.375rem;
  color: var(--tn-ink, #0f172a);
  text-decoration: none;
  background: transparent;
  border: 0;
  text-align: start;
}

.dropdown-item:hover {
  background: var(--tn-surface-muted, #f5f7fa);
}

.dropdown-toggle::after {
  content: "";
  display: inline-block;
  margin-inline-start: 0.35rem;
  border: 0.3em solid transparent;
  border-top-color: currentColor;
  vertical-align: 0.15em;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: none;
  overflow-y: auto;
  padding: 1rem;
}

.modal.show {
  display: block;
}

.modal-dialog {
  max-width: 32rem;
  margin: 10vh auto;
}

.modal-dialog-centered {
  display: flex;
  align-items: center;
  min-height: calc(100% - 2rem);
}

.modal-content {
  position: relative;
  background: #fff;
  border: 1px solid var(--tn-line, #e2e8f0);
  border-radius: 0.875rem;
  box-shadow: var(--tn-shadow-md, 0 10px 28px rgba(11, 18, 32, 0.08));
  padding: 1.25rem;
}

.btn-close {
  position: absolute;
  inset-block-start: 0.75rem;
  inset-inline-end: 0.75rem;
  width: 2rem;
  height: 2rem;
  border: 0;
  background: transparent;
  cursor: pointer;
  font-size: 1.25rem;
  line-height: 1;
}

.btn-close::before {
  content: "×";
}

.tn-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 55;
  background: rgba(11, 18, 32, 0.45);
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease;
}

.tn-modal-backdrop.show {
  opacity: 1;
  pointer-events: auto;
}

body.tn-modal-open {
  overflow: hidden;
}

@media (prefers-reduced-motion: reduce) {
  .tn-modal-backdrop {
    transition: none;
  }
}

.list-group {
  list-style: none;
  padding: 0;
  margin: 0;
}

.list-group-item {
  padding: 0.75rem 1rem;
  border: 1px solid var(--tn-line, #e2e8f0);
  background: #fff;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: 0.35rem;
  font-size: 0.875rem;
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-inline-end: 0.35rem;
  color: var(--tn-ink-disabled, #94a3b8);
}

.breadcrumb-item a {
  color: var(--tn-ink-muted, #475569);
  text-decoration: none;
}

.breadcrumb-item.active {
  color: var(--tn-ink, #0f172a);
}

@media (min-width: 992px) {
  .d-lg-flex {
    display: flex !important;
  }
}

@media (max-width: 767.98px) {
  .d-sm-inline {
    display: inline !important;
  }
}