:root {
  --bg: #0d0f14;
  --bg-panel: #13161e;
  --bg-card: #181c26;
  --border: #2a2f3d;
  --text: #e4e6eb;
  --text-muted: #8b909a;
  --accent: #00d4aa;
  --accent-dim: #00a884;
  --danger: #f25c54;
  --warning: #f2c94c;
  --radius: 12px;
  --font-sans: 'Outfit', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

.app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

/* Header */
.header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.logo-icon {
  color: var(--accent);
  font-size: 1.5rem;
}

.logo h1 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.tagline {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Layout */
.main {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
}

@media (max-width: 768px) {
  .main {
    grid-template-columns: 1fr;
  }
}

/* Panels */
.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.panel h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text);
}

.panel h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-muted);
}

/* Server list */
.btn-add {
  width: 100%;
  margin-bottom: 16px;
}

.server-list {
  list-style: none;
}

.server-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 12px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 8px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.server-item:hover {
  border-color: var(--accent-dim);
  background: rgba(0, 212, 170, 0.06);
}

.server-item.active {
  border-color: var(--accent);
  background: rgba(0, 212, 170, 0.1);
}

.server-item-name {
  font-weight: 500;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.server-item-host {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.server-item-actions {
  display: flex;
  gap: 4px;
}

.server-item-actions button {
  padding: 6px 10px;
  font-size: 0.8rem;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 6px;
}

.server-item-actions button:hover {
  background: var(--border);
  color: var(--text);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, transform 0.1s;
}

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

.btn-sm {
  padding: 8px 14px;
  font-size: 0.85rem;
}

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

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

.btn-secondary {
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
}

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

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

.btn-ghost:hover {
  color: var(--text);
}

.btn-danger {
  background: rgba(242, 92, 84, 0.15);
  color: var(--danger);
  border: 1px solid rgba(242, 92, 84, 0.4);
}

.btn-danger:hover {
  background: rgba(242, 92, 84, 0.25);
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}

.modal.open {
  display: flex;
}

.modal-content {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  width: 100%;
  max-width: 400px;
}

.modal-content h3 {
  margin-bottom: 20px;
  color: var(--text);
}

/* Form */
label {
  display: block;
  margin-bottom: 14px;
}

label span {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

input[type="text"],
input[type="password"],
input[type="number"] {
  width: 100%;
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
}

input:focus {
  outline: none;
  border-color: var(--accent);
}

.form-actions {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.form-actions .btn-ghost {
  margin-right: auto;
}

/* Dashboard */
.dashboard-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
}

.dashboard-header h2 {
  margin-bottom: 0;
  font-size: 1.2rem;
}

.dashboard-actions {
  display: flex;
  gap: 8px;
}

/* Metrics grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
}

.metric-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--accent);
}

.metric-value-small {
  font-size: 0.85rem;
  word-break: break-word;
}

/* Control section */
.control-section {
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.control-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.custom-command label span {
  margin-bottom: 8px;
}

.command-row {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}

.command-row input {
  flex: 1;
}

.command-output {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  min-height: 60px;
  max-height: 200px;
  overflow: auto;
  color: var(--text-muted);
  white-space: pre-wrap;
  word-break: break-all;
}

/* Status bar */
.status-bar {
  margin-top: 16px;
  padding: 10px 12px;
  font-size: 0.85rem;
  border-radius: 8px;
  min-height: 40px;
}

.status-bar.success {
  background: rgba(0, 212, 170, 0.12);
  color: var(--accent);
}

.status-bar.error {
  background: rgba(242, 92, 84, 0.12);
  color: var(--danger);
}

.status-bar.loading {
  background: rgba(242, 201, 76, 0.1);
  color: var(--warning);
}