:root {
  --vr-bg: #0b1220;
  --vr-bg-soft: #111a2b;
  --vr-panel: #151f33;
  --vr-border: #22304a;
  --vr-text: #e6ecf7;
  --vr-muted: #8e9db8;
  --vr-accent: #4f7cff;
  --vr-accent-soft: rgba(79, 124, 255, 0.14);
  --vr-success: #2fbf71;
  --vr-warning: #f0a72b;
  --vr-danger: #ef5b6b;
  --vr-radius: 14px;
  --vr-sidebar-w: 258px;
}

* {
  scrollbar-width: thin;
}

body {
  background: radial-gradient(1100px 600px at 12% -10%, #17233c 0%, var(--vr-bg) 55%) fixed, var(--vr-bg);
  color: var(--vr-text);
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 0.94rem;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a {
  color: #8fb0ff;
  text-decoration: none;
}
a:hover {
  color: #b6c9ff;
}

/* ---------- Sidebar ---------- */
.vr-sidebar {
  width: var(--vr-sidebar-w);
  background: linear-gradient(180deg, #0e1728 0%, #0b1220 100%);
  border-right: 1px solid var(--vr-border);
  position: fixed;
  inset: 0 auto 0 0;
  display: flex;
  flex-direction: column;
  padding: 18px 14px;
  z-index: 1040;
  transition: transform 0.25s ease;
}

.vr-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px 18px;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.vr-brand-badge {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  background: linear-gradient(140deg, var(--vr-accent), #7a5cff);
  box-shadow: 0 8px 20px rgba(79, 124, 255, 0.35);
  font-size: 1rem;
}

.vr-brand small {
  display: block;
  color: var(--vr-muted);
  font-weight: 500;
  font-size: 0.72rem;
}

.vr-nav {
  display: flex;
  flex-direction: column;
  gap: 3px;
  overflow-y: auto;
  flex: 1;
}

.vr-nav-label {
  color: var(--vr-muted);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 14px 10px 6px;
}

.vr-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 11px;
  border-radius: 10px;
  color: #b9c6dd;
  font-weight: 500;
  transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.vr-nav a:hover {
  background: rgba(255, 255, 255, 0.045);
  color: #fff;
  transform: translateX(2px);
}

.vr-nav a.active {
  background: var(--vr-accent-soft);
  color: #c9d9ff;
  box-shadow: inset 0 0 0 1px rgba(79, 124, 255, 0.35);
}

.vr-nav .vr-ico {
  width: 18px;
  text-align: center;
  opacity: 0.9;
}

.vr-sidebar-foot {
  border-top: 1px solid var(--vr-border);
  padding-top: 12px;
  margin-top: 10px;
  font-size: 0.78rem;
  color: var(--vr-muted);
}

/* ---------- Layout ---------- */
.vr-main {
  margin-left: var(--vr-sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.vr-topbar {
  position: sticky;
  top: 0;
  z-index: 1020;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 22px;
  background: rgba(11, 18, 32, 0.82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--vr-border);
}

.vr-content {
  padding: 22px;
  flex: 1;
}

@media (max-width: 991.98px) {
  .vr-sidebar {
    transform: translateX(-100%);
  }
  .vr-sidebar.show {
    transform: translateX(0);
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.6);
  }
  .vr-main {
    margin-left: 0;
  }
  .vr-content {
    padding: 16px;
  }
}

.vr-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(5, 9, 16, 0.6);
  z-index: 1035;
  display: none;
}
.vr-backdrop.show {
  display: block;
}

/* ---------- Cards ---------- */
.card {
  background: linear-gradient(180deg, #14203a 0%, var(--vr-panel) 100%);
  border: 1px solid var(--vr-border);
  border-radius: var(--vr-radius);
  color: var(--vr-text);
}

.card-header {
  background: transparent;
  border-bottom: 1px solid var(--vr-border);
  padding: 14px 18px;
  font-weight: 600;
}

.card-body {
  padding: 18px;
}

.vr-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 18px;
  border-radius: var(--vr-radius);
  background: linear-gradient(160deg, rgba(79, 124, 255, 0.12), rgba(20, 32, 58, 0.7));
  border: 1px solid var(--vr-border);
  height: 100%;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.vr-stat:hover {
  transform: translateY(-2px);
  border-color: rgba(79, 124, 255, 0.45);
}

.vr-stat .vr-stat-label {
  color: var(--vr-muted);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.vr-stat .vr-stat-value {
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1.15;
}

.vr-stat .vr-stat-sub {
  color: var(--vr-muted);
  font-size: 0.78rem;
}

/* ---------- Forms & tables ---------- */
.form-control,
.form-select {
  background-color: #0e1729;
  border-color: var(--vr-border);
  color: var(--vr-text);
  border-radius: 10px;
  padding: 0.5rem 0.75rem;
}

.form-control:focus,
.form-select:focus {
  background-color: #0e1729;
  border-color: var(--vr-accent);
  color: var(--vr-text);
  box-shadow: 0 0 0 0.2rem rgba(79, 124, 255, 0.2);
}

.form-control::placeholder {
  color: #64748b;
}

.form-label {
  font-size: 0.82rem;
  color: #a7b4cc;
  margin-bottom: 0.3rem;
  font-weight: 500;
}

.form-text {
  color: var(--vr-muted);
}

.table {
  --bs-table-bg: transparent;
  --bs-table-color: var(--vr-text);
  --bs-table-border-color: var(--vr-border);
  margin-bottom: 0;
}

.table > :not(caption) > * > * {
  padding: 0.68rem 0.75rem;
  background: transparent;
}

.table thead th {
  color: var(--vr-muted);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--vr-border);
  font-weight: 600;
}

.table-hover > tbody > tr:hover > * {
  background: rgba(79, 124, 255, 0.07);
  color: var(--vr-text);
}

.btn {
  border-radius: 10px;
  font-weight: 500;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: linear-gradient(140deg, #4f7cff, #6b5cff);
  border: none;
  box-shadow: 0 6px 16px rgba(79, 124, 255, 0.28);
}

.btn-primary:hover {
  background: linear-gradient(140deg, #5c86ff, #7868ff);
}

.btn-outline-light {
  border-color: var(--vr-border);
  color: #c6d3e7;
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: #3a4a68;
  color: #fff;
}

.badge {
  font-weight: 600;
  border-radius: 7px;
  padding: 0.34em 0.6em;
  letter-spacing: 0.02em;
}

.badge-unused {
  background: rgba(79, 124, 255, 0.16);
  color: #a9c1ff;
}
.badge-active {
  background: rgba(47, 191, 113, 0.16);
  color: #6fe0a3;
}
.badge-expired {
  background: rgba(240, 167, 43, 0.16);
  color: #ffcd7a;
}
.badge-disabled {
  background: rgba(239, 91, 107, 0.16);
  color: #ff9aa5;
}
.badge-online {
  background: rgba(47, 191, 113, 0.16);
  color: #6fe0a3;
}
.badge-offline {
  background: rgba(239, 91, 107, 0.16);
  color: #ff9aa5;
}
.badge-unknown {
  background: rgba(142, 157, 184, 0.16);
  color: #b9c6dd;
}

.alert {
  border-radius: 12px;
  border: 1px solid var(--vr-border);
  background: var(--vr-bg-soft);
  color: var(--vr-text);
}

.alert-success {
  border-color: rgba(47, 191, 113, 0.4);
  background: rgba(47, 191, 113, 0.09);
}
.alert-danger {
  border-color: rgba(239, 91, 107, 0.4);
  background: rgba(239, 91, 107, 0.09);
}
.alert-warning {
  border-color: rgba(240, 167, 43, 0.4);
  background: rgba(240, 167, 43, 0.09);
}
.alert-info {
  border-color: rgba(79, 124, 255, 0.4);
  background: rgba(79, 124, 255, 0.09);
}

code,
.mono {
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.86em;
  background: rgba(255, 255, 255, 0.05);
  padding: 0.12em 0.35em;
  border-radius: 5px;
  color: #cfe0ff;
}

.vr-empty {
  text-align: center;
  padding: 36px 12px;
  color: var(--vr-muted);
}

.vr-muted {
  color: var(--vr-muted);
}

.vr-page-title {
  font-size: 1.15rem;
  font-weight: 650;
  margin: 0;
}

.vr-page-title small {
  display: block;
  font-size: 0.78rem;
  color: var(--vr-muted);
  font-weight: 400;
  margin-top: 2px;
}

.vr-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(140deg, #4f7cff, #7a5cff);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.82rem;
  color: #fff;
}

.nav-tabs {
  border-bottom-color: var(--vr-border);
}

.nav-tabs .nav-link {
  color: var(--vr-muted);
  border: none;
  border-bottom: 2px solid transparent;
}

.nav-tabs .nav-link.active {
  color: #c9d9ff;
  background: transparent;
  border-bottom-color: var(--vr-accent);
}

.dropdown-menu {
  background: #121c2e;
  border: 1px solid var(--vr-border);
  border-radius: 12px;
}

.dropdown-item {
  color: #c6d3e7;
}

.dropdown-item:hover {
  background: rgba(79, 124, 255, 0.12);
  color: #fff;
}

.dropdown-divider {
  border-color: var(--vr-border);
}

.spinner-border-sm {
  width: 0.9rem;
  height: 0.9rem;
  border-width: 0.14em;
}

.vr-sparkline {
  width: 100%;
  height: 54px;
  display: block;
}

/* Login */
.vr-login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.vr-login-card {
  width: 100%;
  max-width: 400px;
  border-radius: 18px;
  padding: 28px;
  background: linear-gradient(165deg, #16223a, #0f1828);
  border: 1px solid var(--vr-border);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.45);
}

@media print {
  body {
    background: #fff !important;
    color: #000 !important;
  }
}