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

:root {
  --bg: #0c0c0c;
  --bg-elevated: #141414;
  --bg-input: #1a1a1a;
  --border: #262626;
  --border-focus: #404040;
  --text: #e5e5e5;
  --text-muted: #737373;
  --text-label: #a3a3a3;
  --accent: #d97706;
  --accent-hover: #f59e0b;
  --danger: #dc2626;
  --danger-hover: #ef4444;
  --success: #16a34a;
  --font-mono: 'JetBrains Mono', monospace;
  --font-ui: system-ui, -apple-system, 'Segoe UI', 'Noto Sans SC', sans-serif;
}

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

html {
  font-size: 14px;
}

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

table, input, select, button, .mono {
  font-family: var(--font-mono);
}

input::placeholder,
select::placeholder {
  color: var(--text-muted);
}

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

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

button {
  cursor: pointer;
  font-family: var(--font-ui);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.header {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo img {
  width: 2rem;
  height: 2rem;
}

.logo-text {
  font-weight: 600;
  color: var(--text);
}

.logo-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

.nav {
  display: flex;
  gap: 1.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 2px;
}

.nav a {
  color: var(--text-muted);
  padding: 0.25rem 0;
  border-bottom: 1px solid transparent;
}

.nav a:hover,
.nav a.active {
  color: var(--text);
  border-bottom-color: var(--accent);
}

.logout-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  padding: 0.5rem;
  border-radius: 2px;
}

.logout-btn:hover {
  color: var(--text);
  background: var(--bg-elevated);
}

.logout-btn svg {
  width: 1.25rem;
  height: 1.25rem;
}

.main {
  padding: 1.5rem 0;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.stats {
  display: flex;
  gap: 2rem;
}

.stat {
  text-align: right;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.stat-value {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--accent);
  font-family: var(--font-mono);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  border-radius: 2px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.btn:hover {
  background: var(--bg-elevated);
  border-color: var(--border-focus);
}

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

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

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

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

.btn-sm {
  padding: 0.25rem 0.75rem;
  font-size: 0.8125rem;
}

.table-container {
  border: 1px solid var(--border);
  border-radius: 2px;
  overflow: hidden;
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead {
  background: var(--bg-elevated);
}

th {
  padding: 0.75rem 1rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

td {
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  color: var(--text);
  border-bottom: 1px solid var(--border);
}

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

tbody tr:hover {
  background: var(--bg-elevated);
}

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

.cell-name {
  font-weight: 500;
}

.cell-actions {
  display: flex;
  gap: 0.5rem;
}

.cell-nodes {
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cell-nodes:hover {
  white-space: normal;
  overflow: visible;
}

.form-container {
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group:last-of-type {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
}

.form-input,
.form-select {
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 2px;
  color: var(--text);
  transition: border-color 0.15s;
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--border-focus);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23737373' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2rem;
}

.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 200px;
  overflow-y: auto;
  padding: 0.5rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 2px;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.checkbox-item input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  accent-color: var(--accent);
}

.checkbox-item label {
  font-size: 0.875rem;
  color: var(--text);
  cursor: pointer;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 1rem;
}

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

.modal {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 2px;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  color: var(--text-muted);
  border-radius: 2px;
}

.modal-close:hover {
  color: var(--text);
  background: var(--bg-elevated);
}

.modal-close svg {
  width: 1rem;
  height: 1rem;
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  display: flex;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
}

.modal-footer .btn {
  flex: 1;
}

.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.login-box {
  width: 100%;
  max-width: 320px;
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 2rem;
}

.login-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 1.5rem;
  text-align: center;
}

.login-error {
  font-size: 0.875rem;
  color: var(--danger);
  margin-bottom: 1rem;
  text-align: center;
}

.link-group {
  display: flex;
  gap: 0.5rem;
}

.link-btn {
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 2px;
}

.link-btn:hover {
  color: var(--text);
  background: var(--bg-elevated);
}

.hidden {
  display: none;
}

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

.tab {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

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

.tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-panel {
  padding-top: 1rem;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (max-width: 768px) {
  html {
    font-size: 13px;
  }
  
  .container {
    padding: 0 1rem;
  }
  
  .nav {
    gap: 1rem;
    padding: 0.5rem;
  }
  
  .stats {
    gap: 1rem;
  }
  
  table {
    font-size: 0.8125rem;
  }
  
  th, td {
    padding: 0.5rem 0.75rem;
  }
}