:root {
  --bg: #0f1419;
  --panel: #161d26;
  --panel-alt: #1c2632;
  --border: #2a3647;
  --text: #e6edf3;
  --muted: #8b9bb0;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --danger: #ef4444;
  --success: #22c55e;
  --warning: #f59e0b;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.5;
}

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

a:hover {
  text-decoration: underline;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1.25rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.brand {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.92rem;
}

.nav-links a.active,
.nav-links a:hover {
  color: var(--text);
  text-decoration: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.25rem;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}

.card h1, .card h2, .card h3 {
  margin-top: 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.85rem;
  margin-bottom: 1rem;
}

.stat-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.85rem 1rem;
}

.stat-label {
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-value {
  font-family: var(--mono);
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 0.25rem;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th, td {
  text-align: left;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
}

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

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 0.78rem;
  background: var(--panel-alt);
  border: 1px solid var(--border);
}

.badge-running {
  color: var(--success);
  border-color: rgba(34, 197, 94, 0.4);
}

.badge-paused, .badge-pausing, .badge-resuming, .badge-creating {
  color: var(--warning);
  border-color: rgba(245, 158, 11, 0.4);
}

.badge-error {
  color: var(--danger);
  border-color: rgba(239, 68, 68, 0.4);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.75rem;
  align-items: end;
}

label {
  display: block;
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 0.25rem;
}

input[type="text"],
input[type="password"],
input[type="number"],
select {
  width: 100%;
  padding: 0.45rem 0.6rem;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.9rem;
}

button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.42rem 0.8rem;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--panel-alt);
  color: var(--text);
  font-size: 0.85rem;
  cursor: pointer;
}

button:hover, .btn:hover {
  background: var(--border);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-danger {
  color: #fecaca;
  border-color: rgba(239, 68, 68, 0.5);
}

.actions {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.actions form {
  margin: 0;
}

.tabs {
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.tabs a {
  padding: 0.5rem 0.85rem;
  color: var(--muted);
  border-bottom: 2px solid transparent;
}

.tabs a.active {
  color: var(--text);
  border-bottom-color: var(--accent);
  text-decoration: none;
}

.alert {
  padding: 0.75rem 1rem;
  border-radius: 4px;
  margin-bottom: 1rem;
  border: 1px solid var(--border);
  background: var(--panel-alt);
}

.alert-error {
  border-color: var(--danger);
  color: #fecaca;
}

.alert-success {
  border-color: var(--success);
}

.log-output {
  background: #090d11;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.75rem;
  height: 420px;
  overflow-y: auto;
  font-family: var(--mono);
  font-size: 0.82rem;
  white-space: pre-wrap;
}

.vnc-stage {
  background: #050709;
  border: 1px solid var(--border);
  border-radius: 4px;
  width: 100%;
  height: 640px;
  overflow: hidden;
  position: relative;
}

.standalone-body {
  margin: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: #050709;
}

.standalone-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.4rem 0.85rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
}

.standalone-stage {
  flex: 1;
  width: 100%;
  overflow: hidden;
}

@media (max-width: 720px) {
  .container {
    padding: 0.75rem;
  }
  .topbar {
    padding: 0.6rem 0.75rem;
  }
  th, td {
    padding: 0.45rem 0.5rem;
    font-size: 0.82rem;
  }
  .vnc-stage {
    height: 380px;
  }
}