@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ============================================================
   CSS Custom Properties
   ============================================================ */
:root {
  --bg-primary: #0d0f16;
  --bg-secondary: #131620;
  --bg-tertiary: #1a1e2e;
  --bg-card: #161a28;
  --bg-input: #0f1119;

  --accent: #00f5d4;
  --accent-dim: rgba(0, 245, 212, 0.15);
  --accent-glow: rgba(0, 245, 212, 0.4);
  --accent-hover: #00d4b8;

  --danger: #ff4757;
  --danger-dim: rgba(255, 71, 87, 0.15);
  --warning: #ffa502;
  --warning-dim: rgba(255, 165, 2, 0.15);
  --success: #2ed573;
  --success-dim: rgba(46, 213, 115, 0.15);
  --info: #1e90ff;
  --info-dim: rgba(30, 144, 255, 0.15);

  --text-primary: #e4e8f0;
  --text-secondary: #8892a4;
  --text-muted: #4e5668;

  --border: #1f2535;
  --border-accent: rgba(0, 245, 212, 0.3);

  --sidebar-w: 220px;
  --navbar-h: 60px;
  --radius: 8px;
  --radius-lg: 12px;

  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --transition: 0.2s ease;
  --glow: 0 0 20px var(--accent-glow);
}

/* ============================================================
   Reset & Base
   ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--accent-hover);
}

h1,
h2,
h3,
h4,
h5 {
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}

/* ============================================================
   Layout Shell
   ============================================================ */
.app-shell {
  display: flex;
  min-height: 100vh;
}

/* ============================================================
   Sidebar
   ============================================================ */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 100;
  transition: transform var(--transition);
}

.sidebar-brand {
  height: var(--navbar-h);
  display: flex;
  align-items: center;
  padding: 0 20px;
  border-bottom: 1px solid var(--border);
  gap: 10px;
}

.sidebar-brand .brand-icon {
  width: 32px;
  height: 32px;
  background: var(--accent);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  box-shadow: 0 0 12px var(--accent-glow);
  flex-shrink: 0;
}

.sidebar-brand .brand-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.5px;
}

.sidebar-brand .brand-name span {
  color: var(--accent);
}

.sidebar-nav {
  flex: 1;
  padding: 16px 0;
  overflow-y: auto;
}

.nav-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 12px 20px 6px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  border-left: 3px solid transparent;
  font-size: 13.5px;
  font-weight: 500;
}

.nav-item:hover {
  color: var(--text-primary);
  background: var(--accent-dim);
  border-left-color: var(--accent);
}

.nav-item.active {
  color: var(--accent);
  background: var(--accent-dim);
  border-left-color: var(--accent);
}

.nav-item .nav-icon {
  font-size: 16px;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar {
  width: 34px;
  height: 34px;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--accent);
  font-weight: 600;
  flex-shrink: 0;
}

.user-info .user-name {
  font-size: 13px;
  font-weight: 600;
}

.user-info .user-role {
  font-size: 11px;
  color: var(--text-muted);
}

/* ============================================================
   Main Content
   ============================================================ */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-w);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ============================================================
   Topbar
   ============================================================ */
.topbar {
  height: var(--navbar-h);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.breadcrumb-sep {
  color: var(--text-muted);
}

.breadcrumb-item {
  color: var(--text-secondary);
  font-size: 13px;
}

.breadcrumb-item.active {
  color: var(--accent);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 13px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition);
}

.topbar-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

/* Hamburger */
.sidebar-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 6px 10px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 18px;
}

/* ============================================================
   Page Body
   ============================================================ */
.page-body {
  flex: 1;
  padding: 24px;
}

/* ============================================================
   Flash Messages
   ============================================================ */
.flash {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  font-size: 13.5px;
  font-weight: 500;
  border: 1px solid;
}

.flash-success {
  background: var(--success-dim);
  border-color: var(--success);
  color: var(--success);
}

.flash-danger {
  background: var(--danger-dim);
  border-color: var(--danger);
  color: var(--danger);
}

.flash-warning {
  background: var(--warning-dim);
  border-color: var(--warning);
  color: var(--warning);
}

.flash-info {
  background: var(--info-dim);
  border-color: var(--info);
  color: var(--info);
}

.flash-close {
  margin-left: auto;
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
  font-size: 18px;
}

/* ============================================================
   Cards
   ============================================================ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition);
}

.card:hover {
  border-color: rgba(0, 245, 212, 0.15);
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-title .icon {
  color: var(--accent);
}

.card-body {
  padding: 20px;
}

.card-body.no-pad {
  padding: 0;
}

/* ============================================================
   Server Cards (Dashboard)
   ============================================================ */
.servers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.server-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.server-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.server-card:hover {
  border-color: var(--border-accent);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  transform: translateY(-2px);
}

.server-card:hover::before {
  opacity: 1;
}

.server-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 14px;
}

.server-name {
  font-size: 15px;
  font-weight: 600;
}

.server-address {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-top: 2px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 20px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.status-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.status-online {
  background: var(--success-dim);
  color: var(--success);
}

.status-online .dot {
  background: var(--success);
}

.status-offline {
  background: var(--danger-dim);
  color: var(--danger);
}

.status-offline .dot {
  background: var(--danger);
  animation: none;
}

.status-unknown {
  background: var(--warning-dim);
  color: var(--warning);
}

.status-unknown .dot {
  background: var(--warning);
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
    box-shadow: 0 0 4px currentColor;
  }

  50% {
    opacity: 0.5;
    box-shadow: none;
  }
}

.server-meta {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  margin-bottom: 16px;
}

.meta-item {
  font-size: 12px;
}

.meta-label {
  color: var(--text-muted);
  display: block;
}

.meta-value {
  color: var(--text-primary);
  font-weight: 500;
}

.server-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.tag {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 20px;
  background: var(--accent-dim);
  color: var(--accent);
  letter-spacing: 0.3px;
  text-transform: lowercase;
}

.server-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
  line-height: 1;
}

.btn-sm {
  padding: 5px 12px;
  font-size: 12px;
}

.btn-xs {
  padding: 3px 8px;
  font-size: 11px;
}

.btn-lg {
  padding: 11px 22px;
  font-size: 14px;
}

.btn-block {
  width: 100%;
  justify-content: center;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-primary);
  border-color: var(--accent);
  font-weight: 600;
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  box-shadow: 0 4px 12px var(--accent-glow);
  color: var(--bg-primary);
}

.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border);
}

.btn-secondary:hover {
  color: var(--text-primary);
  border-color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.05);
}

.btn-danger {
  background: var(--danger-dim);
  color: var(--danger);
  border-color: var(--danger);
}

.btn-danger:hover {
  background: var(--danger);
  color: #fff;
}

.btn-warning {
  background: var(--warning-dim);
  color: var(--warning);
  border-color: var(--warning);
}

.btn-warning:hover {
  background: var(--warning);
  color: var(--bg-primary);
}

.btn-success {
  background: var(--success-dim);
  color: var(--success);
  border-color: var(--success);
}

.btn-success:hover {
  background: var(--success);
  color: var(--bg-primary);
}

.btn-info {
  background: var(--info-dim);
  color: var(--info);
  border-color: var(--info);
}

.btn-info:hover {
  background: var(--info);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}

.btn-ghost:hover {
  background: var(--accent-dim);
  color: var(--accent);
}

/* ============================================================
   Forms
   ============================================================ */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-hint {
  font-size: 11.5px;
  color: var(--text-muted);
  margin-top: 5px;
}

.form-control {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  appearance: none;
}

.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

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

select.form-control {
  cursor: pointer;
}

.form-check {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.form-check input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

/* ============================================================
   Tables
   ============================================================ */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.table th {
  background: var(--bg-tertiary);
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  padding: 10px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
  vertical-align: middle;
}

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

.table tr:hover td {
  background: rgba(0, 245, 212, 0.03);
}

.table code {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
}

/* ============================================================
   Console
   ============================================================ */
#console-output {
  background: #070809;
  border: 1px solid #1a1f2e;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  height: 420px;
  overflow-y: auto;
  padding: 14px 16px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

#console-output::-webkit-scrollbar {
  width: 6px;
}

#console-output::-webkit-scrollbar-track {
  background: transparent;
}

#console-output::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

#console-output::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

#console-output .Generic {
  color: #c5cbd8;
}

#console-output .Log {
  color: var(--success);
}

#console-output .Error {
  color: var(--danger);
}

#console-output .Warning {
  color: var(--warning);
}

#console-output .Command {
  color: var(--accent);
  font-weight: 500;
}

.console-input-wrap {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  align-items: center;
}

.console-prompt {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  padding-right: 4px;
  flex-shrink: 0;
}

.console-input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition);
}

.console-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

/* ============================================================
   Stats Bar (console top)
   ============================================================ */
.console-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* ============================================================
   Server Info Grid
   ============================================================ */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.info-stat {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}

.info-stat-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.info-stat-value {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.info-stat-value.accent {
  color: var(--accent);
}

.info-stat-value.success {
  color: var(--success);
}

.info-stat-value.warning {
  color: var(--warning);
}

.info-table-wrap {
  margin-top: 20px;
}

.info-section-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}

/* ============================================================
   Auth Pages
   ============================================================ */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(0, 245, 212, 0.04) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 50%, rgba(30, 144, 255, 0.04) 0%, transparent 60%),
    var(--bg-primary);
}

.auth-box {
  width: 100%;
  max-width: 400px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.auth-logo {
  text-align: center;
  margin-bottom: 28px;
}

.auth-logo .logo-icon {
  width: 56px;
  height: 56px;
  background: var(--accent);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: var(--bg-primary);
  margin: 0 auto 12px;
  box-shadow: var(--glow);
}

.auth-logo h1 {
  font-size: 22px;
}

.auth-logo h1 span {
  color: var(--accent);
}

.auth-logo p {
  color: var(--text-muted);
  font-size: 13px;
  margin-top: 4px;
}

/* ============================================================
   Modal
   ============================================================ */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(4px);
}

.modal-overlay.open {
  display: flex;
}

.modal-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 500px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  animation: modalIn 0.2s ease;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.96) translateY(10px);
  }

  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 15px;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 20px;
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: 20px;
}

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* ============================================================
   Notification / Toast
   ============================================================ */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--radius);
  border: 1px solid;
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  animation: toastIn 0.3s ease;
  max-width: 320px;
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateX(20px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.toast-success {
  background: var(--success-dim);
  border-color: var(--success);
  color: var(--success);
}

.toast-danger {
  background: var(--danger-dim);
  border-color: var(--danger);
  color: var(--danger);
}

.toast-warning {
  background: var(--warning-dim);
  border-color: var(--warning);
  color: var(--warning);
}

/* ============================================================
   Loading Spinner
   ============================================================ */
.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 40px 20px;
  color: var(--text-muted);
  font-size: 13px;
}

/* ============================================================
   Utility
   ============================================================ */
.d-flex {
  display: flex;
}

.align-center {
  align-items: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-8 {
  gap: 8px;
}

.gap-12 {
  gap: 12px;
}

.mt-16 {
  margin-top: 16px;
}

.mt-20 {
  margin-top: 20px;
}

.mb-20 {
  margin-bottom: 20px;
}

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

.text-accent {
  color: var(--accent);
}

.text-danger {
  color: var(--danger);
}

.text-success {
  color: var(--success);
}

.mono {
  font-family: var(--font-mono);
}

.text-center {
  text-align: center;
}

.fw-6 {
  font-weight: 600;
}

.fs-12 {
  font-size: 12px;
}

.fs-13 {
  font-size: 13px;
}

.empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-muted);
}

.empty-state .empty-icon {
  font-size: 40px;
  margin-bottom: 12px;
}

.empty-state h3 {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.empty-state p {
  font-size: 13px;
}

/* ============================================================
   Page-specific — dashboard stats
   ============================================================ */
.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-card-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  font-weight: 600;
}

.stat-card-value {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.stat-card-sub {
  font-size: 11px;
  color: var(--text-muted);
}

/* ============================================================
   Sidebar Overlay (mobile)
   ============================================================ */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 99;
}

/* ============================================================
   Responsive
   ============================================================ */

/* Tablet — ≤ 900px */
@media (max-width: 900px) {
  :root {
    --sidebar-w: 200px;
  }
}

/* Mobile — ≤ 660px */
@media (max-width: 660px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.6);
  }

  .sidebar-overlay {
    display: block;
  }

  .sidebar-overlay.open {
    display: block;
  }

  .main-content {
    margin-left: 0;
  }

  .sidebar-toggle {
    display: flex;
    align-items: center;
  }

  .page-body {
    padding: 16px;
  }

  .servers-grid {
    grid-template-columns: 1fr;
  }

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

  .info-grid {
    grid-template-columns: 1fr 1fr;
  }

  .topbar {
    padding: 0 16px;
  }

  .auth-box {
    padding: 24px 20px;
  }

  #console-output {
    height: 300px;
  }

  .table th,
  .table td {
    padding: 10px 12px;
  }
}

/* Extra-small — ≤ 400px */
@media (max-width: 400px) {
  .stat-row {
    grid-template-columns: 1fr;
  }

  .info-grid {
    grid-template-columns: 1fr;
  }
}

/* Landscape tablet specific tweaks */
@media (min-width: 661px) and (max-width: 900px) {
  .servers-grid {
    grid-template-columns: 1fr 1fr;
  }

  .info-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

/* Wide screens */
@media (min-width: 1400px) {
  .servers-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
}

/* High-DPI */
@media (-webkit-min-device-pixel-ratio: 2),
(min-resolution: 192dpi) {
  .sidebar-brand .brand-icon {
    box-shadow: 0 0 16px var(--accent-glow);
  }
}

/* Print */
@media print {

  .sidebar,
  .topbar {
    display: none !important;
  }

  .main-content {
    margin-left: 0 !important;
  }
}