:root {
  --app-bg: #020617;
  --app-bg-accent: #0f172a;
  --app-surface: rgba(15, 23, 42, 0.92);
  --app-surface-strong: rgba(17, 24, 39, 0.96);
  --app-surface-muted: rgba(15, 23, 42, 0.72);
  --app-border: rgba(148, 163, 184, 0.22);
  --app-border-strong: rgba(148, 163, 184, 0.34);
  --app-text: #e2e8f0;
  --app-text-muted: #cbd5e1;
  --app-text-subtle: #94a3b8;
  --app-warning: #f59e0b;
  --app-danger: #ef4444;
  --app-success: #22c55e;
  --app-info: #38bdf8;
  --app-shadow: 0 18px 45px rgba(2, 6, 23, 0.42);
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 2.5rem;
  --space-8: 3rem;
  --radius-sm: 0.75rem;
  --radius-md: 1rem;
  --radius-lg: 1.25rem;
}

html {
  font-size: 16px;
}

body,
.app-body {
  min-height: 100vh;
  margin: 0;
  color: var(--app-text);
  background:
    radial-gradient(circle at top, rgba(56, 189, 248, 0.14), transparent 28%),
    linear-gradient(180deg, #020617 0%, #020617 18%, #08101f 100%);
}

a {
  color: #7dd3fc;
}

a:hover,
a:focus {
  color: #bae6fd;
}

.app-shell {
  min-height: 100vh;
}

.app-container {
  max-width: 1400px;
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -999px;
  z-index: 1000;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  background: #f8fafc;
  color: #020617;
  font-weight: 600;
}

.skip-link:focus {
  top: var(--space-4);
}

.app-topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  background: rgba(2, 6, 23, 0.72);
  border-bottom: 1px solid rgba(148, 163, 184, 0.14);
}

.app-navbar {
  padding: 1rem 0;
}

.app-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.app-brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 0.9rem;
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.18), rgba(56, 189, 248, 0.18));
  border: 1px solid rgba(148, 163, 184, 0.18);
}

.brand-mark {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.app-brand-name {
  display: block;
  color: #f8fafc;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.app-brand-tag {
  display: block;
  color: var(--app-text-subtle);
  font-size: 0.82rem;
}

.app-nav-list {
  gap: 0.35rem;
}

.app-nav-link {
  border-radius: 999px;
  color: var(--app-text-muted);
  font-weight: 600;
  padding: 0.65rem 0.95rem !important;
  transition: background-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.app-nav-link:hover,
.app-nav-link:focus {
  background: rgba(148, 163, 184, 0.1);
  color: #f8fafc;
}

.app-nav-link.active {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(56, 189, 248, 0.12));
  color: #f8fafc !important;
  box-shadow: inset 0 0 0 1px rgba(245, 158, 11, 0.16);
}

.app-navbar-toggler {
  border-color: rgba(148, 163, 184, 0.25);
}

.app-session {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.app-session-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
}

.app-session-label {
  font-size: 0.75rem;
  color: var(--app-text-subtle);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.app-session-value {
  font-size: 0.95rem;
  color: #f8fafc;
  font-weight: 600;
}

.app-main {
  padding-top: var(--space-6);
  padding-bottom: var(--space-8);
}

.page-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  align-items: flex-start;
}

.page-header-eyebrow {
  margin: 0 0 var(--space-2);
  color: var(--app-text-subtle);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.page-header-title {
  margin: 0;
  font-size: clamp(1.85rem, 2vw, 2.5rem);
  font-weight: 700;
  color: #f8fafc;
  line-height: 1.1;
}

.page-header-subtitle {
  max-width: 60rem;
  margin: var(--space-3) 0 0;
  color: var(--app-text-muted);
  font-size: 1rem;
}

.page-header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.panel-card,
.metric-card,
.hero-card,
.auth-card,
.error-card {
  background: linear-gradient(180deg, var(--app-surface) 0%, var(--app-surface-strong) 100%);
  border: 1px solid var(--app-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--app-shadow);
  color: var(--app-text);
}

.panel-card .card-header,
.metric-card .card-header,
.hero-card .card-header,
.error-card .card-header {
  padding: 1rem 1.25rem;
  background: rgba(15, 23, 42, 0.72);
  border-bottom: 1px solid var(--app-border);
  color: #f8fafc;
  font-weight: 700;
}

.panel-card .card-body,
.metric-card .card-body,
.hero-card .card-body,
.error-card .card-body {
  padding: 1.35rem;
}

.hero-card {
  margin-bottom: var(--space-6);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(260px, 0.9fr);
  gap: var(--space-5);
  align-items: start;
}

.hero-summary {
  display: grid;
  gap: var(--space-4);
}

.hero-meta {
  display: grid;
  gap: var(--space-3);
}

.eyebrow-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  color: #fde68a;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.16);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-stat-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.hero-stat {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: rgba(2, 6, 23, 0.35);
  border: 1px solid rgba(148, 163, 184, 0.14);
}

.hero-stat-label {
  margin-bottom: var(--space-2);
  color: var(--app-text-subtle);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero-stat-value {
  font-size: 1.35rem;
  font-weight: 700;
}

.metric-card {
  height: 100%;
  overflow: hidden;
}

.metric-card::before {
  content: "";
  display: block;
  height: 3px;
  background: linear-gradient(90deg, rgba(56, 189, 248, 0.9), rgba(245, 158, 11, 0.9));
}

.metric-card.metric-card-critical::before {
  background: linear-gradient(90deg, rgba(239, 68, 68, 0.95), rgba(245, 158, 11, 0.95));
}

.metric-card.metric-card-online::before {
  background: linear-gradient(90deg, rgba(34, 197, 94, 0.95), rgba(56, 189, 248, 0.95));
}

.metric-label {
  color: var(--app-text-subtle);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
}

.metric-value {
  margin-top: var(--space-2);
  font-size: clamp(1.9rem, 2.4vw, 2.5rem);
  font-weight: 700;
  line-height: 1;
}

.metric-meta {
  margin-top: var(--space-3);
  color: var(--app-text-muted);
  font-size: 0.9rem;
}

.stack-grid {
  display: grid;
  gap: var(--space-4);
}

.section-stack {
  display: grid;
  gap: var(--space-5);
}

.detail-stack {
  display: grid;
  gap: var(--space-4);
}

.detail-list dt {
  color: var(--app-text-subtle);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.25rem;
}

.detail-list dd {
  margin-bottom: 1rem;
  color: #f8fafc;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.status-pill.status-high,
.status-pill.status-locked,
.status-pill.status-danger {
  background: rgba(239, 68, 68, 0.14);
  color: #fecaca;
}

.status-pill.status-medium,
.status-pill.status-warning,
.status-pill.status-provisioning {
  background: rgba(245, 158, 11, 0.14);
  color: #fde68a;
}

.status-pill.status-low,
.status-pill.status-info {
  background: rgba(56, 189, 248, 0.14);
  color: #bae6fd;
}

.status-pill.status-online,
.status-pill.status-success,
.status-pill.status-enabled {
  background: rgba(34, 197, 94, 0.14);
  color: #bbf7d0;
}

.status-pill.status-offline,
.status-pill.status-disabled {
  background: rgba(148, 163, 184, 0.14);
  color: #cbd5e1;
}

.table-dark,
.app-table {
  --bs-table-bg: transparent;
  --bs-table-color: var(--app-text);
  --bs-table-border-color: rgba(148, 163, 184, 0.12);
  --bs-table-striped-bg: rgba(15, 23, 42, 0.55);
  --bs-table-hover-bg: rgba(30, 41, 59, 0.72);
  margin-bottom: 0;
}

.app-table caption {
  padding: 0.9rem 1.25rem 0;
}

.app-table thead th {
  color: var(--app-text-subtle);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  border-bottom-width: 1px;
  white-space: nowrap;
}

.app-table td {
  vertical-align: middle;
}

.table-row-subtle {
  display: block;
  margin-top: 0.15rem;
  color: var(--app-text-subtle);
  font-size: 0.88rem;
}

.table-action-link {
  color: #f8fafc;
  font-weight: 600;
  text-decoration: none;
}

.table-action-link:hover,
.table-action-link:focus {
  text-decoration: underline;
}

.form-control,
.form-select,
.code-box {
  background: rgba(2, 6, 23, 0.6);
  border-color: rgba(148, 163, 184, 0.22);
  color: #f8fafc;
  border-radius: 0.9rem;
  padding: 0.8rem 0.95rem;
}

.form-control::placeholder {
  color: rgba(148, 163, 184, 0.9);
}

.form-control:focus,
.form-select:focus,
.btn:focus,
.btn:focus-visible,
.nav-link:focus-visible,
.table-action-link:focus-visible,
.list-group-item:focus-visible {
  box-shadow: 0 0 0 0.25rem rgba(56, 189, 248, 0.18);
  border-color: rgba(56, 189, 248, 0.75);
  outline: none;
}

.form-label {
  color: #f8fafc;
  font-weight: 600;
  margin-bottom: 0.45rem;
}

.form-hint {
  margin-top: 0.45rem;
  color: var(--app-text-subtle);
  font-size: 0.88rem;
}

.validation-summary-errors,
.validation-summary-valid {
  margin-bottom: 0;
}

.validation-summary-valid {
  display: none;
}

.validation-summary-errors ul,
.validation-summary-valid ul {
  margin-bottom: 0;
  padding-left: 1rem;
}

.field-validation-valid {
  display: none;
}

.btn-warning,
.app-primary-button {
  color: #111827;
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  border: none;
  font-weight: 700;
  box-shadow: 0 14px 28px rgba(245, 158, 11, 0.24);
}

.btn-warning:hover,
.btn-warning:focus,
.app-primary-button:hover,
.app-primary-button:focus {
  color: #0f172a;
  background: linear-gradient(135deg, #fcd34d, #f59e0b);
}

.app-secondary-button,
.btn-outline-warning,
.btn-outline-light {
  border-radius: 999px;
}

.app-secondary-button {
  border-color: rgba(148, 163, 184, 0.28);
  color: #f8fafc;
  background: rgba(15, 23, 42, 0.38);
}

.app-secondary-button:hover,
.app-secondary-button:focus {
  background: rgba(30, 41, 59, 0.72);
  color: #f8fafc;
  border-color: rgba(148, 163, 184, 0.42);
}

.button-stack {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.code-box,
.report-block {
  background: rgba(2, 6, 23, 0.72);
  color: #e2e8f0;
  font-family: Consolas, "Courier New", monospace;
}

.code-box {
  min-height: 13rem;
  overflow-x: auto;
}

.report-block {
  white-space: pre-wrap;
  margin: 0;
  line-height: 1.6;
}

.list-group-item-dark {
  background: transparent;
  color: var(--app-text);
  border-color: rgba(148, 163, 184, 0.14);
}

.list-group-item-dark:hover,
.list-group-item-dark:focus {
  background: rgba(30, 41, 59, 0.62);
}

.empty-state {
  padding: var(--space-6);
  text-align: center;
  color: var(--app-text-muted);
}

.empty-state strong {
  display: block;
  margin-bottom: var(--space-2);
  color: #f8fafc;
}

.stacked-inline-form {
  display: grid;
  gap: var(--space-3);
}

.inline-field-label {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--app-text-subtle);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.login-mark {
  width: 88px;
  height: 88px;
  object-fit: contain;
}

.auth-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: var(--space-6) var(--space-4);
}

.auth-shell {
  width: min(100%, 1080px);
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 420px);
  gap: var(--space-5);
}

.auth-card {
  overflow: hidden;
}

.auth-feature-panel {
  padding: var(--space-7);
  background:
    radial-gradient(circle at top right, rgba(245, 158, 11, 0.18), transparent 32%),
    radial-gradient(circle at bottom left, rgba(56, 189, 248, 0.16), transparent 35%),
    linear-gradient(180deg, rgba(15, 23, 42, 0.96) 0%, rgba(2, 6, 23, 0.98) 100%);
}

.auth-form-panel {
  padding: var(--space-6);
}

.auth-feature-list {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-5);
}

.auth-feature {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: rgba(15, 23, 42, 0.52);
  border: 1px solid rgba(148, 163, 184, 0.14);
}

.auth-feature-title {
  margin-bottom: 0.35rem;
  color: #f8fafc;
  font-weight: 700;
}

.auth-feature-copy {
  margin-bottom: 0;
  color: var(--app-text-muted);
}

.login-feedback-alert {
  text-align: left;
}

.login-feedback-alert:focus {
  outline: 2px solid rgba(248, 250, 252, 0.45);
  outline-offset: 2px;
}

.login-field-validation:empty {
  display: none;
}

.error-card {
  max-width: 760px;
  margin: 0 auto;
}

.subtle-divider {
  height: 1px;
  background: rgba(148, 163, 184, 0.12);
  margin: var(--space-4) 0;
}

@media (max-width: 991.98px) {
  .app-session {
    flex-direction: column;
    align-items: stretch;
  }

  .app-session-copy {
    align-items: flex-start;
    text-align: left;
  }

  .auth-shell,
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .app-main {
    padding-top: var(--space-5);
  }
}

@media (max-width: 767.98px) {
  .page-header {
    margin-bottom: var(--space-5);
  }

  .page-header-title {
    font-size: 1.7rem;
  }

  .panel-card .card-body,
  .metric-card .card-body,
  .hero-card .card-body {
    padding: 1rem;
  }

  .hero-stat-list {
    grid-template-columns: 1fr;
  }

  .app-table thead {
    display: none;
  }

  .app-table,
  .app-table tbody,
  .app-table tr,
  .app-table td {
    display: block;
    width: 100%;
  }

  .app-table tr {
    padding: var(--space-3) 0;
    border-top: 1px solid rgba(148, 163, 184, 0.12);
  }

  .app-table td {
    border: none;
    padding: 0.4rem 1rem;
  }

  .app-table td::before {
    content: attr(data-label);
    display: block;
    margin-bottom: 0.2rem;
    color: var(--app-text-subtle);
    font-size: 0.76rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
  }
}