:root {
  --bnc-surface-elevated: rgba(255, 255, 255, 0.82);
  --bnc-surface-glass: color-mix(in srgb, var(--bnc-accent, #3b82f6) 10%, #ffffff 90%);
  --bnc-auth-glow: color-mix(in srgb, var(--bnc-accent, #3b82f6) 18%, transparent);
  --bnc-danger-soft: color-mix(in srgb, #ef4444 12%, var(--bnc-surface, #fff));
  --bnc-warning-soft: color-mix(in srgb, #f59e0b 12%, var(--bnc-surface, #fff));
}

html[data-theme-mode="dark"] {
  --bnc-surface-elevated: rgba(19, 27, 44, 0.86);
  --bnc-surface-glass: color-mix(in srgb, var(--bnc-accent, #60a5fa) 12%, #0f172a 88%);
  --bnc-auth-glow: color-mix(in srgb, var(--bnc-accent, #60a5fa) 22%, transparent);
  --bnc-danger-soft: color-mix(in srgb, #ef4444 18%, #0f172a 82%);
  --bnc-warning-soft: color-mix(in srgb, #f59e0b 18%, #0f172a 82%);
}

body.bnc-theme-shell,
body.bnc-installer-body {
  background-image:
    radial-gradient(circle at top right, color-mix(in srgb, var(--bnc-accent, #3b82f6) 12%, transparent) 0%, transparent 42%),
    radial-gradient(circle at bottom left, color-mix(in srgb, var(--bnc-accent-alt, #8b5cf6) 10%, transparent) 0%, transparent 38%);
  background-attachment: fixed;
}

.bnc-auth-stage {
  min-height: calc(100vh - 6rem);
  display: grid;
  grid-template-columns: minmax(280px, 420px) minmax(320px, 520px);
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  padding: clamp(1rem, 2.5vw, 2rem);
}

.bnc-auth-showcase,
.bnc-login-wrap {
  position: relative;
  overflow: hidden;
  border-radius: 28px;
  border: 1px solid color-mix(in srgb, var(--bnc-accent, #3b82f6) 14%, rgba(148, 163, 184, 0.18));
  background: var(--bnc-surface-elevated);
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.12);
  backdrop-filter: blur(18px);
}

.bnc-auth-showcase {
  padding: clamp(1.5rem, 3vw, 2.4rem);
  min-height: 560px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  isolation: isolate;
}

.bnc-auth-showcase::before,
.bnc-login-wrap::before,
.bnc-page-state::before,
.bnc-profile-summary-card::before,
.bnc-personalization-panel::before {
  content: "";
  position: absolute;
  inset: auto -12% -30% auto;
  width: 260px;
  height: 260px;
  border-radius: 999px;
  background: radial-gradient(circle, var(--bnc-auth-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.bnc-auth-showcase > *,
.bnc-login-wrap > *,
.bnc-page-state > *,
.bnc-profile-summary-card > *,
.bnc-personalization-panel > * { position: relative; z-index: 1; }

.bnc-auth-badge {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .45rem .8rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--bnc-accent, #3b82f6) 12%, transparent);
  color: var(--bnc-heading, inherit);
  font-weight: 700;
  font-size: .82rem;
  width: fit-content;
}

.bnc-auth-title {
  font-size: clamp(1.8rem, 2.3vw, 2.55rem);
  line-height: 1.35;
  margin: 1rem 0 .75rem;
  font-weight: 800;
  color: var(--bnc-heading, inherit);
}

.bnc-auth-subtitle {
  color: var(--bnc-text-muted, #64748b);
  line-height: 1.95;
  max-width: 34rem;
}

.bnc-auth-feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .9rem;
  margin-top: 1.5rem;
}

.bnc-auth-feature-card {
  padding: 1rem;
  border-radius: 20px;
  background: color-mix(in srgb, var(--bnc-surface, #ffffff) 72%, var(--bnc-accent, #3b82f6) 8%);
  border: 1px solid color-mix(in srgb, var(--bnc-accent, #3b82f6) 12%, rgba(148, 163, 184, 0.18));
}

.bnc-auth-feature-card h6 {
  margin-bottom: .45rem;
  font-weight: 800;
  color: var(--bnc-heading, inherit);
}

.bnc-auth-feature-card p,
.bnc-auth-metrics small { margin: 0; color: var(--bnc-text-muted, #64748b); }

.bnc-auth-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .9rem;
  margin-top: 1.6rem;
}

.bnc-auth-metric {
  padding: 1rem;
  border-radius: 20px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--bnc-accent, #3b82f6) 10%, transparent), transparent);
  border: 1px solid color-mix(in srgb, var(--bnc-accent, #3b82f6) 16%, rgba(148, 163, 184, 0.18));
}

.bnc-auth-metric strong {
  display: block;
  font-size: 1.2rem;
  color: var(--bnc-heading, inherit);
}

.bnc-login-wrap {
  padding: clamp(1.4rem, 2vw, 2.1rem);
}

.bnc-login-alert {
  background: var(--bnc-danger-soft);
  border: 1px solid color-mix(in srgb, #ef4444 32%, transparent);
  color: var(--bnc-heading, inherit);
}

.bnc-login-input-group .input-group-text {
  background: color-mix(in srgb, var(--bnc-accent, #3b82f6) 10%, var(--bnc-surface, #fff));
  border-color: color-mix(in srgb, var(--bnc-accent, #3b82f6) 20%, rgba(148, 163, 184, 0.35));
  color: var(--bnc-heading, inherit);
}

.bnc-login-form .form-control {
  min-height: 3.1rem;
}

.bnc-login-footer-note {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed color-mix(in srgb, var(--bnc-accent, #3b82f6) 14%, rgba(148, 163, 184, .32));
  color: var(--bnc-text-muted, #64748b);
  font-size: .88rem;
}

.bnc-profile-shell .card.custom-card,
.bnc-profile-shell .ops-panel,
.bnc-profile-shell .bnc-personalization-panel {
  border-radius: 24px;
}

.bnc-profile-summary-card,
.bnc-personalization-panel {
  overflow: hidden;
  background: linear-gradient(180deg, color-mix(in srgb, var(--bnc-accent, #3b82f6) 6%, transparent), transparent), var(--bnc-surface-elevated);
  border: 1px solid color-mix(in srgb, var(--bnc-accent, #3b82f6) 16%, rgba(148, 163, 184, .22));
}

.bnc-profile-summary-card .badge,
.bnc-personalization-panel .badge,
.bnc-profile-stat {
  border-color: color-mix(in srgb, var(--bnc-accent, #3b82f6) 18%, rgba(148, 163, 184, .25)) !important;
  background: color-mix(in srgb, var(--bnc-accent, #3b82f6) 8%, var(--bnc-surface, #fff)) !important;
  color: var(--bnc-heading, inherit) !important;
}

.bnc-profile-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .85rem;
  margin-top: 1rem;
}

.bnc-profile-stat {
  padding: .9rem .8rem;
  border-radius: 18px;
  text-align: center;
}

.bnc-profile-stat strong {
  display: block;
  font-size: 1.1rem;
  font-weight: 800;
}

.bnc-profile-stat span {
  display: block;
  font-size: .8rem;
  color: var(--bnc-text-muted, #64748b);
}

.bnc-preview-card,
.bnc-personalization-panel .bnc-preview-card {
  border-radius: 20px;
  border: 1px dashed color-mix(in srgb, var(--bnc-accent, #3b82f6) 20%, rgba(148, 163, 184, .32));
  background: linear-gradient(135deg, color-mix(in srgb, var(--bnc-accent, #3b82f6) 10%, transparent), transparent), var(--bnc-surface, #fff);
}

.bnc-form-experience {
  position: relative;
}

.bnc-form-progress {
  position: sticky;
  top: 5.4rem;
  z-index: 25;
  display: flex;
  gap: .75rem;
  overflow: auto hidden;
  padding: .85rem 1rem;
  margin-bottom: 1rem;
  border-radius: 20px;
  border: 1px solid color-mix(in srgb, var(--bnc-accent, #3b82f6) 16%, rgba(148, 163, 184, .22));
  background: color-mix(in srgb, var(--bnc-surface-elevated) 92%, var(--bnc-accent, #3b82f6) 8%);
  backdrop-filter: blur(14px);
}

.bnc-form-progress-item {
  min-width: 170px;
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  padding: .7rem .8rem;
  border-radius: 16px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--bnc-heading, inherit);
  cursor: pointer;
  transition: all .2s ease;
}

.bnc-form-progress-item:hover,
.bnc-form-progress-item.is-active {
  background: color-mix(in srgb, var(--bnc-accent, #3b82f6) 10%, transparent);
  border-color: color-mix(in srgb, var(--bnc-accent, #3b82f6) 18%, rgba(148, 163, 184, .22));
}

.bnc-form-progress-index,
.bnc-form-step-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--bnc-accent, #3b82f6), color-mix(in srgb, var(--bnc-accent-alt, #8b5cf6) 55%, var(--bnc-accent, #3b82f6)));
  color: #fff;
  font-size: .82rem;
  font-weight: 800;
  box-shadow: 0 10px 24px color-mix(in srgb, var(--bnc-accent, #3b82f6) 24%, transparent);
}

.bnc-form-step-badge {
  width: 26px;
  height: 26px;
  font-size: .76rem;
  margin-inline-start: .55rem;
}

.bnc-form-progress-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: right;
  gap: .1rem;
}

.bnc-form-progress-copy strong {
  font-size: .87rem;
  line-height: 1.35;
}

.bnc-form-progress-copy small {
  color: var(--bnc-text-muted, #64748b);
  font-size: .72rem;
}

.bnc-form-section,
.bnc-form-section.ops-panel,
.bnc-form-section.card.custom-card {
  scroll-margin-top: 8rem;
  border: 1px solid color-mix(in srgb, var(--bnc-accent, #3b82f6) 12%, rgba(148, 163, 184, .18));
  box-shadow: 0 10px 36px rgba(15, 23, 42, .05);
}

.bnc-form-section .card-header,
.bnc-form-section .ops-panel-head {
  background: linear-gradient(180deg, color-mix(in srgb, var(--bnc-accent, #3b82f6) 8%, transparent), transparent);
  border-bottom-color: color-mix(in srgb, var(--bnc-accent, #3b82f6) 12%, rgba(148, 163, 184, .18));
}

.bnc-form-section .card-title,
.bnc-form-section .ops-panel-title {
  display: inline-flex;
  align-items: center;
  gap: .25rem;
  color: var(--bnc-heading, inherit);
}

.bnc-sticky-submit-bar {
  position: sticky;
  bottom: 1rem;
  z-index: 22;
  padding: .8rem;
  border-radius: 18px;
  background: color-mix(in srgb, var(--bnc-surface-elevated) 92%, var(--bnc-accent, #3b82f6) 8%);
  border: 1px solid color-mix(in srgb, var(--bnc-accent, #3b82f6) 14%, rgba(148, 163, 184, .25));
  box-shadow: 0 20px 40px rgba(15, 23, 42, .08);
  backdrop-filter: blur(12px);
}

.bnc-empty-state,
.bnc-state-card,
.bnc-state-panel {
  position: relative;
  overflow: hidden;
  padding: clamp(1.2rem, 2.2vw, 2rem);
  border-radius: 26px;
  border: 1px dashed color-mix(in srgb, var(--bnc-accent, #3b82f6) 18%, rgba(148, 163, 184, .25));
  background: linear-gradient(180deg, color-mix(in srgb, var(--bnc-accent, #3b82f6) 8%, transparent), transparent), var(--bnc-surface-elevated);
}

.bnc-empty-state-icon,
.bnc-state-icon {
  width: 72px;
  height: 72px;
  border-radius: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 1rem;
  background: color-mix(in srgb, var(--bnc-accent, #3b82f6) 12%, transparent);
  color: var(--bnc-accent, #3b82f6);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--bnc-accent, #3b82f6) 18%, transparent);
}

.bnc-empty-state-title,
.bnc-state-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--bnc-heading, inherit);
  margin-bottom: .45rem;
}

.bnc-empty-state-copy,
.bnc-state-copy {
  color: var(--bnc-text-muted, #64748b);
  line-height: 1.95;
}

.bnc-page-state-shell {
  min-height: calc(100vh - 12rem);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.bnc-page-state {
  max-width: 760px;
  width: 100%;
  border-radius: 30px;
  border: 1px solid color-mix(in srgb, var(--bnc-accent, #3b82f6) 16%, rgba(148, 163, 184, .22));
  background: var(--bnc-surface-elevated);
  box-shadow: 0 24px 70px rgba(15, 23, 42, .12);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  text-align: center;
}

.bnc-state-actions {
  display: flex;
  justify-content: center;
  gap: .75rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.bnc-state-meta {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  margin-bottom: 1rem;
  padding: .45rem .8rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--bnc-accent, #3b82f6) 10%, transparent);
  color: var(--bnc-heading, inherit);
  font-weight: 700;
}

.bnc-inline-soft-error {
  border-radius: 16px;
  padding: .8rem .9rem;
  background: var(--bnc-danger-soft);
  color: var(--bnc-heading, inherit);
}

.bnc-inline-soft-warning {
  border-radius: 16px;
  padding: .8rem .9rem;
  background: var(--bnc-warning-soft);
  color: var(--bnc-heading, inherit);
}

@media (max-width: 991.98px) {
  .bnc-auth-stage {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .bnc-auth-showcase { min-height: auto; }
  .bnc-form-progress {
    top: .65rem;
    border-radius: 18px;
  }
}

@media (max-width: 767.98px) {
  .bnc-auth-feature-grid,
  .bnc-auth-metrics,
  .bnc-profile-metrics {
    grid-template-columns: 1fr;
  }
  .bnc-form-progress-item {
    min-width: 145px;
  }
  .bnc-sticky-submit-bar {
    bottom: .5rem;
  }
}

html[data-bnc-motion="none"] .bnc-auth-showcase,
html[data-bnc-motion="none"] .bnc-login-wrap,
html[data-bnc-motion="none"] .bnc-form-progress-item,
html[data-bnc-motion="none"] .bnc-form-section,
html[data-bnc-motion="none"] .bnc-page-state {
  transition: none !important;
  animation: none !important;
}