:root {
  --sf-bg: #070b14;
  --sf-panel: rgba(13, 19, 33, 0.92);
  --sf-panel-2: #111827;
  --sf-border: rgba(255, 255, 255, 0.08);
  --sf-text: #e5e7eb;
  --sf-muted: #94a3b8;
  --sf-accent: #7dd3fc;
  --sf-accent-2: #22c55e;
}

body.app-body {
  background:
    radial-gradient(circle at top left, rgba(34, 197, 94, 0.15), transparent 30%),
    radial-gradient(circle at top right, rgba(125, 211, 252, 0.14), transparent 28%),
    linear-gradient(180deg, #050816 0%, #0b1020 100%);
  color: var(--sf-text);
  min-height: 100vh;
}

.app-shell {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 100vh;
}

.app-sidebar {
  background: linear-gradient(180deg, rgba(8, 12, 24, 0.98), rgba(11, 16, 32, 0.92));
  border-right: 1px solid var(--sf-border);
  padding: 1.5rem;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand-block {
  padding-bottom: 1rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--sf-border);
}

.brand-kicker,
.topbar-kicker {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--sf-accent);
  font-size: 0.72rem;
}

.brand-title {
  font-size: 1.3rem;
  font-weight: 700;
}

.sidebar-user {
  padding: 1rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--sf-border);
  border-radius: 1rem;
  margin-bottom: 1rem;
}

.app-sidebar .nav-link {
  color: var(--sf-muted);
  border-radius: 0.9rem;
  padding: 0.8rem 1rem;
  border: 1px solid transparent;
}

.app-sidebar .nav-link:hover,
.app-sidebar .nav-link.active {
  color: white;
  background: rgba(125, 211, 252, 0.08);
  border-color: rgba(125, 211, 252, 0.18);
}

.app-main {
  min-width: 0;
}

.app-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem 1.5rem 0;
}

.topbar-meta {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.card,
.table,
.form-control,
.form-select,
.input-group-text,
.list-group-item {
  background: var(--sf-panel) !important;
  color: var(--sf-text) !important;
  border-color: var(--sf-border) !important;
}

.table {
  --bs-table-bg: transparent;
  --bs-table-color: var(--sf-text);
}

.table thead th {
  color: #cbd5e1;
  border-bottom-color: var(--sf-border);
}

.text-muted,
.small,
.form-text {
  color: var(--sf-muted) !important;
}

.stat-card {
  border: 1px solid var(--sf-border);
  border-radius: 1rem;
  background: linear-gradient(180deg, rgba(17, 24, 39, 0.92), rgba(8, 12, 24, 0.9));
}

.stat-label {
  color: var(--sf-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.74rem;
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
}

.panel {
  background: var(--sf-panel);
  border: 1px solid var(--sf-border);
  border-radius: 1rem;
  padding: 1rem;
}

.badge {
  border-radius: 999px;
}

.table > :not(caption) > * > * {
  background-color: transparent !important;
}

.form-control:focus,
.form-select:focus {
  border-color: rgba(125, 211, 252, 0.5) !important;
  box-shadow: 0 0 0 0.2rem rgba(125, 211, 252, 0.15) !important;
}

.auth-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
}

.auth-card {
  width: min(480px, 100%);
  border: 1px solid var(--sf-border);
  border-radius: 1.25rem;
  background: rgba(11, 16, 32, 0.96);
  box-shadow: 0 24px 100px rgba(0, 0, 0, 0.35);
}

.auth-card .card-body {
  padding: 1.75rem;
}

.btn-primary {
  background: linear-gradient(135deg, #0ea5e9, #2563eb);
  border: 0;
}

.btn-outline-secondary {
  border-color: rgba(255, 255, 255, 0.16);
}

.sf-tablet-preview {
  min-height: 740px;
  display: grid;
  grid-template-columns: 260px 1fr;
  overflow: hidden;
  border: 1px solid var(--sf-border);
  border-radius: 1.5rem;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.98), rgba(2, 6, 23, 0.96));
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  position: relative;
}

.sf-tablet-preview::after {
  content: 'SF';
  position: absolute;
  right: 6%;
  bottom: -4%;
  font-size: 16rem;
  font-weight: 900;
  letter-spacing: -0.12em;
  color: rgba(125, 211, 252, 0.05);
  pointer-events: none;
}

.sf-tablet-sidebar,
.sf-tablet-main {
  position: relative;
  z-index: 1;
}

.sf-tablet-sidebar {
  padding: 1.25rem;
  border-right: 1px solid var(--sf-border);
  background: rgba(2, 6, 23, 0.72);
}

.sf-tablet-brand {
  padding-bottom: 1.25rem;
  margin-bottom: 1rem;
}

.sf-tablet-kicker {
  color: var(--sf-accent);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.68rem;
  font-weight: 800;
}

.sf-tablet-title {
  font-size: 1.7rem;
  font-weight: 900;
  line-height: 1;
  margin-top: 0.25rem;
}

.sf-tablet-subtitle {
  color: var(--sf-muted);
  font-size: 0.8rem;
  margin-top: 0.35rem;
}

.sf-tablet-nav {
  width: 100%;
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  border: 1px solid var(--sf-border);
  color: var(--sf-text);
  background: rgba(15, 23, 42, 0.62);
  border-radius: 1rem;
  padding: 0.85rem;
  margin-bottom: 0.65rem;
  text-align: left;
}

.sf-tablet-nav.active,
.sf-tablet-nav:hover {
  border-color: rgba(125, 211, 252, 0.55);
  background: rgba(14, 165, 233, 0.12);
}

.sf-tablet-nav strong,
.sf-tablet-nav small {
  display: block;
}

.sf-tablet-nav small {
  color: var(--sf-muted);
  font-size: 0.72rem;
  margin-top: 0.15rem;
}

.sf-tablet-nav-label {
  color: var(--sf-muted);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.65rem;
  font-weight: 900;
  margin: 1rem 0.25rem 0.5rem;
}

.sf-tablet-main {
  padding: 1.5rem;
  overflow: auto;
}

.sf-tablet-hero {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid var(--sf-border);
  border-radius: 1.25rem;
  padding: 1.5rem;
  background: radial-gradient(circle at top right, rgba(125, 211, 252, 0.16), transparent 34%), rgba(17, 24, 39, 0.9);
}

.sf-tablet-hero h3 {
  font-size: 2rem;
  margin: 0.35rem 0;
}

.sf-tablet-hero p {
  color: #cbd5e1;
  max-width: 48rem;
  margin: 0;
}

.sf-tablet-online {
  height: fit-content;
  border: 1px solid rgba(34, 197, 94, 0.45);
  background: rgba(34, 197, 94, 0.14);
  color: #86efac;
  border-radius: 999px;
  padding: 0.45rem 0.7rem;
  font-size: 0.72rem;
  font-weight: 900;
}

.sf-tablet-stats {
  display: grid;
  grid-template-columns: 170px 190px 1fr;
  gap: 1rem;
  margin-top: 1rem;
}

.sf-tablet-card,
.sf-tablet-app-card {
  border: 1px solid var(--sf-border);
  border-radius: 1rem;
  background: rgba(31, 41, 55, 0.82);
  padding: 1rem;
}

.sf-tablet-stat-value {
  color: var(--sf-accent);
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1;
}

.sf-tablet-stat-label,
.sf-tablet-app-meta {
  color: var(--sf-muted);
  font-size: 0.78rem;
  margin-top: 0.5rem;
}

.sf-tablet-section-head {
  margin: 1.6rem 0 0.85rem;
}

.sf-tablet-section-head h3 {
  margin: 0;
}

.sf-tablet-section-head p {
  color: var(--sf-muted);
  margin: 0.25rem 0 0;
}

.sf-tablet-app-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.sf-tablet-app-card {
  display: flex;
  gap: 0.9rem;
  min-height: 145px;
}

.sf-tablet-app-card h4 {
  margin: 0;
  font-size: 1rem;
}

.sf-tablet-app-card p {
  color: #cbd5e1;
  font-size: 0.78rem;
  margin: 0.65rem 0 0;
  line-height: 1.45;
}

.sf-tablet-app-icon {
  font-size: 2rem;
  line-height: 1;
}

@media (max-width: 1200px) {
  .sf-tablet-preview {
    grid-template-columns: 1fr;
  }

  .sf-tablet-sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--sf-border);
  }

  .sf-tablet-stats,
  .sf-tablet-app-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 992px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .app-sidebar {
    position: static;
    height: auto;
  }

  .app-topbar {
    padding-inline: 1rem;
    flex-direction: column;
    align-items: flex-start;
  }
}