/* Tablet Monitor - Modern Dark Corporate UI */
:root {
  --bg-main: #0b0f19;
  --bg-sidebar: #0d1322;
  --bg-card: #111827;
  --bg-input: #0b0f19;
  --border-color: #1f293d;
  --border-focus: #3b82f6;
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #64748b;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --emerald: #10b981;
  --amber: #f59e0b;
  --rose: #f43f5e;
  --purple: #8b5cf6;
  --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-family);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
  background: #1e293b;
  border-radius: 9999px;
}
::-webkit-scrollbar-thumb:hover {
  background: #334155;
}

/* Layout */
#app-layout {
  display: flex;
  min-height: 100vh;
}

.top-navbar {
  position: sticky;
  top: 0;
  z-index: 40;
  height: 64px;
  background-color: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-box {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, #2563eb, #6366f1);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.brand-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}

.version-badge {
  font-size: 10px;
  font-family: monospace;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.sidebar {
  width: 250px;
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  position: fixed;
  top: 64px;
  bottom: 0;
  left: 0;
  display: flex;
  flex-direction: column;
  z-index: 30;
  transition: transform 0.2s ease;
}

.sidebar-menu {
  flex: 1;
  padding: 16px 12px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  text-align: left;
  transition: all 0.15s ease;
  width: 100%;
}

.nav-item:hover {
  color: var(--text-main);
  background-color: rgba(30, 41, 59, 0.6);
}

.nav-item.active {
  color: #60a5fa;
  background-color: rgba(37, 99, 235, 0.15);
  border-color: rgba(37, 99, 235, 0.3);
  font-weight: 600;
}

.nav-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-color);
}

.server-pill {
  padding: 10px 12px;
  border-radius: 10px;
  background-color: #131c31;
  border: 1px solid var(--border-color);
  font-size: 11px;
}

.main-content {
  margin-left: 250px;
  flex: 1;
  padding: 28px;
  min-height: calc(100vh - 64px);
}

/* Cards & Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 20px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.15s ease;
}

.stat-card:hover {
  border-color: #334155;
}

.stat-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.stat-card-title {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}

.stat-card-value {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.5px;
}

.stat-card-sub {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 4px;
}

.stat-card-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(30, 41, 59, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border-radius: 9999px;
  font-size: 11px;
  font-weight: 600;
}

.badge-online {
  background: rgba(16, 185, 129, 0.12);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.badge-offline {
  background: rgba(100, 116, 139, 0.15);
  color: #94a3b8;
  border: 1px solid rgba(100, 116, 139, 0.25);
}

.badge-revoked {
  background: rgba(244, 63, 94, 0.15);
  color: #fb7185;
  border: 1px solid rgba(244, 63, 94, 0.3);
}

.pulsing-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #10b981;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* Tables */
.table-container {
  width: 100%;
  overflow-x: auto;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-card);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th {
  background-color: #141c2c;
  padding: 14px 18px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
}

td {
  padding: 14px 18px;
  font-size: 13px;
  color: var(--text-main);
  border-bottom: 1px solid rgba(31, 41, 61, 0.6);
}

tr:last-child td {
  border-bottom: none;
}

tbody tr {
  transition: background-color 0.12s ease;
}

tbody tr:hover {
  background-color: rgba(30, 41, 59, 0.4);
}

/* Buttons & Inputs */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s ease;
  font-family: inherit;
}

.btn-primary {
  background-color: var(--primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}
.btn-primary:hover {
  background-color: var(--primary-hover);
}

.btn-secondary {
  background-color: #1e293b;
  color: var(--text-main);
  border-color: #334155;
}
.btn-secondary:hover {
  background-color: #334155;
}

.btn-success {
  background-color: #059669;
  color: #fff;
}
.btn-success:hover {
  background-color: #047857;
}

.btn-danger {
  background-color: #e11d48;
  color: #fff;
}
.btn-danger:hover {
  background-color: #be123c;
}

.btn-icon {
  padding: 6px;
  border-radius: 8px;
  color: var(--text-muted);
  background: transparent;
  border: none;
  cursor: pointer;
}
.btn-icon:hover {
  color: #fff;
  background-color: #1e293b;
}

.input-box {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  color: #fff;
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 12px;
  font-family: inherit;
  transition: border-color 0.15s ease;
}
.input-box:focus {
  outline: none;
  border-color: var(--border-focus);
}

/* Filter bar */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 12px 16px;
  border-radius: 16px;
  margin-bottom: 18px;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 16px;
}

.modal-card {
  width: 100%;
  max-width: 520px;
  background-color: var(--bg-card);
  border: 1px solid #334155;
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  animation: modalIn 0.15s ease-out;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 14px;
  margin-bottom: 16px;
}

.modal-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
}

/* Responsive */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .main-content {
    margin-left: 0;
    padding: 16px;
  }
}