:root {
  /* VeltronHost / BillManager dragon palette */
  --vt-bg: #0a1224;
  --vt-bg-elevated: #16263a;
  --vt-surface: #1a2742;
  --vt-surface-2: #16213e;
  --vt-border: #2a3a5c;
  --vt-border-light: #3d5278;
  --vt-text: #f8fafc;
  --vt-muted: #94a3b8;
  --vt-accent: #3b82f6;
  --vt-accent-hover: #2563eb;
  --vt-accent-dark: #1d4ed8;
  --vt-accent-light: #60a5fa;
  --vt-accent-text: #ffffff;
  --vt-accent-glow: rgba(59, 130, 246, 0.35);
  --vt-cyan: #38bdf8;
  --vt-success: #22c55e;
  --vt-success-dark: #16a34a;
  --vt-info: #38bdf8;
  --vt-danger: #f87171;
  --vt-radius: 10px;
  --vt-radius-sm: 8px;
  --vt-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
  --vt-shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.3);
  --bs-primary: #3b82f6;
  --bs-primary-rgb: 59, 130, 246;
  --bs-body-bg: #0a1224;
  --bs-body-color: #f8fafc;
  --bs-border-color: #2a3a5c;
}

html[data-bs-theme="dark"],
html.veltron-dark,
body.veltron-dark {
  background-color: var(--vt-bg) !important;
  color: var(--vt-text) !important;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  min-height: 100vh;
}

html[data-bs-theme="dark"] {
  --bs-primary: #3b82f6;
  --bs-primary-rgb: 59, 130, 246;
  --bs-body-bg: #0a1224;
  --bs-body-color: #f8fafc;
  --bs-border-color: #2a3a5c;
  --bs-warning: #38bdf8;
  --bs-warning-rgb: 56, 189, 248;
}

/* ── Navbar ── */
body.veltron-dark .navbar {
  background: var(--vt-bg-elevated) !important;
  border-bottom: 1px solid var(--vt-border);
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

body.veltron-dark .navbar-brand img {
  max-height: 42px;
  width: auto;
}

/* ── Logo ── */
body.veltron-dark .veltron-logo-link,
body.veltron-dark .veltron-navbar-brand {
  display: inline-flex;
  align-items: center;
  padding: 0;
  margin: 0;
  text-decoration: none !important;
}

body.veltron-dark .veltron-logo-img,
body.veltron-dark .veltron-navbar-brand .veltron-logo-img {
  display: block;
  height: 44px;
  width: auto;
  max-width: min(240px, 62vw);
  object-fit: contain;
  object-position: left center;
}

/* ── Login page ── */
body.veltron-dark.page-login {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

body.veltron-dark .veltron-login-page {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.25rem 1rem 2rem;
  min-height: 100vh;
  min-height: 100dvh;
}

body.veltron-dark .veltron-login-logo {
  text-align: center;
  margin-bottom: 1.75rem;
  width: 100%;
  max-width: 320px;
}

body.veltron-dark .veltron-login-logo a {
  display: inline-block;
  text-decoration: none;
  line-height: 0;
}

body.veltron-dark .veltron-login-logo img {
  display: block;
  width: 100%;
  max-width: 280px;
  height: auto;
  margin: 0 auto;
  background: transparent;
  padding: 0;
  box-shadow: none;
}

body.veltron-dark .veltron-login-card-wrap {
  width: 100%;
  max-width: 420px;
}

body.veltron-dark .veltron-login-card {
  border-radius: var(--vt-radius) !important;
}

body.veltron-dark .veltron-login-title {
  margin: 0.5rem 0 1.25rem !important;
  font-weight: 600;
  font-size: 1.15rem;
}

body.veltron-dark .veltron-login-submit {
  min-height: 48px;
  font-size: 1rem;
}

body.veltron-dark .veltron-login-actions .btn {
  min-height: 44px;
  font-size: 0.875rem;
  padding-left: 0.5rem;
  padding-right: 0.5rem;
}

body.veltron-dark .navbar .nav-link {
  color: var(--vt-muted) !important;
  font-weight: 500;
  padding: 0.5rem 0.85rem !important;
  border-radius: var(--vt-radius-sm);
  transition: color 0.15s, background 0.15s;
}

body.veltron-dark .navbar .nav-link:hover {
  color: var(--vt-text) !important;
  background: rgba(59, 130, 246, 0.08);
}

body.veltron-dark .navbar .nav-link.active {
  color: var(--vt-accent-light) !important;
  background: rgba(59, 130, 246, 0.18);
}

body.veltron-dark .client-dropdown .nav-link {
  color: var(--vt-text) !important;
}

body.veltron-dark .dropdown-menu {
  background: var(--vt-surface);
  border: 1px solid var(--vt-border);
  box-shadow: var(--vt-shadow);
}

body.veltron-dark .dropdown-item {
  color: var(--vt-text);
}

body.veltron-dark .dropdown-item:hover {
  background: var(--vt-surface-2);
  color: var(--vt-accent-light);
}

/* ── Layout ── */
body.veltron-dark .container {
  max-width: 1280px;
}

body.veltron-dark #wrapper {
  padding-top: 0.5rem;
  padding-bottom: 2rem;
}

/* ── Sidebar ── */
body.veltron-dark .veltron-sidebar {
  background: var(--vt-bg-elevated);
  border: 1px solid var(--vt-border);
  border-radius: var(--vt-radius);
  padding: 0.75rem;
  box-shadow: var(--vt-shadow-sm);
  position: sticky;
  top: 1rem;
}

body.veltron-dark .veltron-sidebar .nav-link {
  color: var(--vt-muted) !important;
  border-radius: var(--vt-radius-sm);
  padding: 0.65rem 0.85rem !important;
  margin-bottom: 2px;
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.15s ease;
}

body.veltron-dark .veltron-sidebar .nav-link:hover {
  color: var(--vt-text) !important;
  background: rgba(59, 130, 246, 0.1);
}

body.veltron-dark .veltron-sidebar .nav-item.active .nav-link,
body.veltron-dark .veltron-sidebar .nav-link.active {
  color: var(--vt-accent-light) !important;
  background: rgba(59, 130, 246, 0.2) !important;
  font-weight: 600;
  box-shadow: inset 3px 0 0 var(--vt-accent);
}

body.veltron-dark .veltron-sidebar .nav-link .icon {
  opacity: 0.9;
  width: 1.1rem;
  height: 1.1rem;
}

body.veltron-dark .veltron-sidebar-balance {
  background: linear-gradient(135deg, #163b78 0%, #1a2742 100%);
  border: 1px solid var(--vt-border-light);
  border-radius: var(--vt-radius-sm);
  padding: 1rem;
  margin-top: 0.75rem;
}

body.veltron-dark .veltron-sidebar-balance .balance-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--vt-muted);
  margin-bottom: 0.35rem;
}

body.veltron-dark .veltron-sidebar-balance .balance-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--vt-accent-light);
}

/* ── Cards ── */
body.veltron-dark .card,
body.veltron-dark .veltron-stat-card {
  background: var(--vt-surface) !important;
  border: 1px solid var(--vt-border) !important;
  border-radius: var(--vt-radius) !important;
  box-shadow: var(--vt-shadow-sm);
  color: var(--vt-text) !important;
  overflow: hidden;
}

body.veltron-dark .card-header {
  background: var(--vt-surface-2) !important;
  border-bottom: 1px solid var(--vt-border) !important;
  color: var(--vt-text) !important;
  padding: 0.85rem 1.25rem;
  font-weight: 600;
}

body.veltron-dark .card-body {
  padding: 1.25rem;
}

/* ── Stat cards ── */
body.veltron-dark .veltron-stat-card {
  transition: transform 0.15s, box-shadow 0.15s;
  border-top: 3px solid transparent;
}

body.veltron-dark .veltron-stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--vt-shadow);
  border-top-color: var(--vt-accent);
}

body.veltron-dark .veltron-stat-card .stat-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--vt-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.75rem;
  font-size: 1.1rem;
  font-weight: 700;
}

body.veltron-dark .veltron-stat-card .stat-icon.balance {
  background: rgba(59, 130, 246, 0.2);
  color: var(--vt-accent-light);
}

body.veltron-dark .veltron-stat-card .stat-icon.services {
  background: rgba(56, 189, 248, 0.15);
  color: var(--vt-cyan);
}

body.veltron-dark .veltron-stat-card .stat-icon.invoices {
  background: rgba(248, 113, 113, 0.15);
  color: var(--vt-danger);
}

body.veltron-dark .veltron-stat-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--vt-muted);
  margin-bottom: 0.35rem;
}

body.veltron-dark .veltron-stat-value {
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--vt-text);
  line-height: 1.2;
}

body.veltron-dark .veltron-stat-card .card-actions {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

body.veltron-dark .veltron-stat-card .card-actions .btn {
  flex: 1 1 auto;
  min-width: 0;
  text-align: center;
}

/* ── Buttons ── */
body.veltron-dark .btn {
  border-radius: var(--vt-radius-sm) !important;
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.45rem 1rem;
  transition: all 0.15s ease;
}

body.veltron-dark .btn-primary {
  background: linear-gradient(180deg, var(--vt-accent) 0%, var(--vt-accent-dark) 100%) !important;
  border: 1px solid var(--vt-accent-dark) !important;
  color: var(--vt-accent-text) !important;
  box-shadow: 0 2px 12px var(--vt-accent-glow);
}

body.veltron-dark .btn-primary:hover,
body.veltron-dark .btn-primary:focus {
  background: linear-gradient(180deg, var(--vt-accent-hover) 0%, var(--vt-accent-dark) 100%) !important;
  border-color: var(--vt-accent-hover) !important;
  color: #fff !important;
  box-shadow: 0 4px 16px var(--vt-accent-glow);
  transform: translateY(-1px);
}

body.veltron-dark .btn-outline-primary {
  border: 2px solid var(--vt-accent) !important;
  color: var(--vt-accent-light) !important;
  background: transparent !important;
}

body.veltron-dark .btn-outline-primary:hover {
  background: var(--vt-accent) !important;
  border-color: var(--vt-accent) !important;
  color: #fff !important;
  box-shadow: 0 2px 12px var(--vt-accent-glow);
}

body.veltron-dark .btn-success {
  background: linear-gradient(180deg, #0ea5e9 0%, #0284c7 100%) !important;
  border: 1px solid #0284c7 !important;
  color: #fff !important;
  box-shadow: 0 2px 12px rgba(14, 165, 233, 0.35);
}

body.veltron-dark .btn-success:hover {
  background: linear-gradient(180deg, #38bdf8 0%, #0ea5e9 100%) !important;
  border-color: #38bdf8 !important;
  color: #fff !important;
  transform: translateY(-1px);
}

body.veltron-dark .btn-secondary,
body.veltron-dark .btn-outline-secondary {
  background: var(--vt-surface-2) !important;
  border: 1px solid var(--vt-border-light) !important;
  color: var(--vt-text) !important;
}

body.veltron-dark .btn-secondary:hover,
body.veltron-dark .btn-outline-secondary:hover {
  background: var(--vt-border) !important;
  border-color: var(--vt-muted) !important;
  color: #fff !important;
}

body.veltron-dark .btn-info {
  background: #0ea5e9 !important;
  border-color: #0284c7 !important;
  color: #fff !important;
}

body.veltron-dark .btn-warning {
  background: #475569 !important;
  border-color: #64748b !important;
  color: #fff !important;
}

body.veltron-dark .btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.8125rem;
}

body.veltron-dark .card-header .btn-group-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* ── VPS section ── */
body.veltron-dark .veltron-vps-panel {
  border-top: 3px solid var(--vt-accent) !important;
}

body.veltron-dark .veltron-vps-panel .vps-hint {
  color: var(--vt-muted);
  font-size: 0.95rem;
  margin: 0;
  line-height: 1.5;
}

body.veltron-dark .veltron-quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

/* ── Lists & forms ── */
body.veltron-dark .list-group-item {
  background: var(--vt-surface) !important;
  color: var(--vt-text) !important;
  border-color: var(--vt-border) !important;
  padding: 0.85rem 1.25rem;
  transition: background 0.15s;
}

body.veltron-dark .list-group-item:hover {
  background: var(--vt-surface-2) !important;
}

body.veltron-dark .table {
  color: var(--vt-text) !important;
  border-color: var(--vt-border) !important;
}

body.veltron-dark .form-control,
body.veltron-dark .form-select {
  background: var(--vt-bg) !important;
  border: 1px solid var(--vt-border) !important;
  color: var(--vt-text) !important;
  border-radius: var(--vt-radius-sm) !important;
}

body.veltron-dark .form-control:focus,
body.veltron-dark .form-select:focus {
  border-color: var(--vt-accent) !important;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25) !important;
}

body.veltron-dark .form-label {
  color: var(--vt-muted);
  font-weight: 500;
}

body.veltron-dark a:not(.btn):not(.nav-link):not(.dropdown-item):not(.list-group-item) {
  color: var(--vt-accent-light);
}

body.veltron-dark .text-muted {
  color: var(--vt-muted) !important;
}

body.veltron-dark .alert-info {
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid var(--vt-border-light);
  color: var(--vt-text);
  border-radius: var(--vt-radius);
}

body.veltron-dark .accordion-item {
  background: var(--vt-surface);
  border-color: var(--vt-border);
  border-radius: var(--vt-radius-sm) !important;
}

body.veltron-dark .accordion-button {
  background: var(--vt-surface-2);
  color: var(--vt-text);
  font-weight: 600;
}

body.veltron-dark .accordion-button:not(.collapsed) {
  background: var(--vt-surface-2);
  color: var(--vt-accent-light);
  box-shadow: none;
}

body.veltron-dark footer#footer {
  color: var(--vt-muted) !important;
  padding-top: 1.5rem;
  margin-top: 1rem;
  border-top: 1px solid var(--vt-border);
}

body.veltron-dark .badge.bg-success {
  background: var(--vt-success-dark) !important;
}

body.veltron-dark .badge.bg-primary {
  background: var(--vt-accent) !important;
}

body.veltron-dark a[href*="fossbilling.org"],
body.veltron-dark a[title="Billing Software"] {
  display: none !important;
}

@media (max-width: 768px) {
  body.veltron-dark .card-header {
    flex-direction: column;
    align-items: flex-start !important;
    gap: 0.5rem;
  }

  body.veltron-dark .card-header .btn-group-actions {
    width: 100%;
  }

  body.veltron-dark .card-header .btn-group-actions .btn {
    flex: 1 1 auto;
    min-width: calc(50% - 0.25rem);
  }
}

/* ══════════════════════════════════════════
   Mobile optimization (phones & small tablets)
   ══════════════════════════════════════════ */
@media (max-width: 991.98px) {
  body.veltron-dark .container,
  body.veltron-dark .container-fluid {
    padding-left: max(0.75rem, env(safe-area-inset-left));
    padding-right: max(0.75rem, env(safe-area-inset-right));
  }

  body.veltron-dark .navbar {
    padding-top: 0.65rem;
    padding-bottom: 0.65rem;
  }

  body.veltron-dark .navbar .container-fluid {
    flex-wrap: nowrap;
    align-items: center;
    gap: 0.75rem;
  }

  body.veltron-dark .veltron-navbar-brand {
    flex: 1 1 auto;
    min-width: 0;
    margin-right: 0;
  }

  body.veltron-dark .veltron-navbar-brand .veltron-logo-img {
    height: 46px;
    max-width: min(260px, 72vw);
  }

  body.veltron-dark .navbar-toggler {
    flex: 0 0 auto;
    border-color: var(--vt-border-light);
    padding: 0.35rem 0.45rem;
    width: 40px;
    height: 40px;
    min-width: 40px;
    min-height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  body.veltron-dark .navbar-toggler-icon {
    width: 1.15rem;
    height: 1.15rem;
  }

  body.veltron-dark .navbar-collapse {
    margin-top: 0.75rem;
    padding: 0.5rem 0.75rem 0.75rem;
    background: var(--vt-surface);
    border: 1px solid var(--vt-border);
    border-radius: var(--vt-radius);
  }

  body.veltron-dark .navbar-collapse .nav.flex-column .nav-link {
    min-height: 44px;
    display: flex;
    align-items: center;
    padding: 0.65rem 0.85rem !important;
    border-radius: var(--vt-radius-sm);
    font-weight: 500;
  }

  body.veltron-dark .navbar-collapse .nav.flex-column .nav-link.active,
  body.veltron-dark .navbar-collapse .nav.flex-column .nav-item.active .nav-link {
    background: rgba(59, 130, 246, 0.18);
    color: var(--vt-accent-light) !important;
  }

  body.veltron-dark .veltron-mobile-user {
    border-bottom: 1px solid var(--vt-border);
    padding-bottom: 0.75rem !important;
    margin-bottom: 0.5rem !important;
  }

  body.veltron-dark #wrapper {
    padding-top: 0.25rem;
    padding-bottom: 1.5rem;
  }

  body.veltron-dark .veltron-stat-value {
    font-size: 1.45rem;
  }

  body.veltron-dark .veltron-stat-card .card-actions {
    flex-direction: column;
  }

  body.veltron-dark .veltron-stat-card .card-actions .btn {
    width: 100%;
    min-height: 44px;
    padding-top: 0.55rem;
    padding-bottom: 0.55rem;
  }

  body.veltron-dark .veltron-quick-actions {
    flex-direction: column;
  }

  body.veltron-dark .veltron-quick-actions .btn {
    width: 100%;
    min-height: 44px;
  }

  body.veltron-dark .table-responsive-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 0 -0.25rem;
    padding: 0 0.25rem;
  }

  body.veltron-dark .table {
    font-size: 0.875rem;
  }

  body.veltron-dark .table td,
  body.veltron-dark .table th {
    white-space: nowrap;
  }

  body.veltron-dark .list-group-item {
    flex-wrap: wrap;
    gap: 0.35rem;
    font-size: 0.9rem;
  }

  body.veltron-dark footer#footer {
    font-size: 0.8rem;
    text-align: center;
    padding-bottom: max(1rem, env(safe-area-inset-bottom));
  }

  body.veltron-dark a.position-fixed.bottom-0.end-0.btn-primary {
    bottom: max(0.75rem, env(safe-area-inset-bottom)) !important;
    right: max(0.75rem, env(safe-area-inset-right)) !important;
    z-index: 1030;
    padding: 0.45rem 0.7rem;
    font-size: 0.8125rem;
    box-shadow: var(--vt-shadow-sm);
  }
}

@media (max-width: 575.98px) {
  body.veltron-dark h1,
  body.veltron-dark .h2 {
    font-size: 1.35rem;
  }

  body.veltron-dark .veltron-login-logo {
    max-width: 260px;
    margin-bottom: 1.25rem;
  }

  body.veltron-dark .veltron-login-logo img {
    max-width: 240px;
    padding: 0;
  }

  body.veltron-dark .veltron-login-card .card-body {
    padding: 1rem;
  }

  body.veltron-dark .veltron-login-actions .col-6 {
    flex: 0 0 100%;
    max-width: 100%;
  }

  body.veltron-dark .veltron-login-actions .btn {
    font-size: 0.8125rem;
  }

  body.veltron-dark .veltron-vps-header {
    flex-direction: column;
    align-items: stretch !important;
    gap: 0.75rem;
  }

  body.veltron-dark .veltron-vps-header .btn {
    width: 100%;
    min-height: 44px;
  }

  body.veltron-dark .veltron-vps-actions {
    flex-direction: column;
  }

  body.veltron-dark .veltron-vps-actions .btn,
  body.veltron-dark .veltron-vps-actions form {
    width: 100%;
  }

  body.veltron-dark .veltron-vps-actions .btn {
    min-height: 44px;
  }

  body.veltron-dark .card-body .d-flex.flex-wrap.gap-2 {
    flex-direction: column;
  }

  body.veltron-dark .card-body .d-flex.flex-wrap.gap-2 .btn,
  body.veltron-dark .card-body .d-flex.flex-wrap.gap-2 form {
    width: 100%;
  }

  body.veltron-dark .card-body .d-flex.flex-wrap.gap-2 form .btn {
    width: 100%;
  }

  body.veltron-dark .btn {
    min-height: 42px;
  }

  body.veltron-dark .form-control,
  body.veltron-dark .form-select {
    font-size: 16px;
  }
}

@media (hover: none) and (pointer: coarse) {
  body.veltron-dark .btn:active {
    transform: scale(0.98);
  }

  body.veltron-dark .veltron-stat-card:hover {
    transform: none;
  }
}

/* ── Checkout payment method selection ── */
body.veltron-dark .invoice-gateway {
  border: 1px solid var(--vt-border);
  background: var(--vt-surface);
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  cursor: pointer;
}

body.veltron-dark .invoice-gateway:hover {
  border-color: var(--vt-accent);
}

body.veltron-dark .invoice-gateway:has(.btn-check:checked) {
  border-color: var(--vt-accent);
  background: rgba(59, 130, 246, 0.12);
  box-shadow: 0 0 0 1px var(--vt-accent), var(--vt-accent-glow);
}

body.veltron-dark .invoice-gateway .btn-check:checked + .btn,
body.veltron-dark .invoice-gateway .btn-check:active + .btn {
  background-color: transparent !important;
  border-color: transparent !important;
  color: var(--vt-accent-light) !important;
  box-shadow: none;
}

body.veltron-dark .invoice-gateway .btn {
  border: 1px solid transparent;
  color: var(--vt-text);
  background: transparent;
}

body.veltron-dark .invoice-gateway .btn:hover {
  color: var(--vt-accent-light);
}

body.veltron-dark .invoice-gateway {
  flex: 0 1 auto;
  min-width: 130px;
}

body.veltron-dark .invoice-gateway:has(.btn-check:checked) .small {
  color: var(--vt-accent-light);
}

body.veltron-dark .invoice-gateway .btn {
  width: 100%;
}

body.veltron-dark .invoice-gateway .btn.veltron-gateway-logo {
  min-height: 48px;
  min-width: 130px;
  padding: 0.35rem 0.5rem;
  background: transparent !important;
  border-color: transparent !important;
  box-shadow: none !important;
}

body.veltron-dark .invoice-gateway .veltron-gateway-logo-img {
  display: block;
  max-width: 100%;
  width: auto;
  height: auto;
  max-height: 40px;
  object-fit: contain;
  pointer-events: none;
}

body.veltron-dark .veltron-balance-topup .veltron-balance-amount {
  min-width: 120px;
  max-width: 160px;
}

@media (min-width: 768px) {
  body.veltron-dark .veltron-balance-topup {
    flex-wrap: nowrap;
  }
}