:root {
  --bg: #f3f5f7;
  --surface: #ffffff;
  --line: #d7dee4;
  --line-strong: #c4ced7;
  --ink: #1a2730;
  --muted: #5a6b78;
  --primary: #0f7664;
  --primary-dark: #0b5c4d;
  --error: #9a302f;
  --ok: #196a39;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Bahnschrift", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
}

.layout {
  width: min(1380px, 96vw);
  margin: 0 auto;
  padding: 1rem 0 1.3rem;
}

.topbar {
  display: grid;
  grid-template-columns: minmax(15rem, 1fr) auto auto;
  gap: 0.8rem;
  align-items: center;
}

.topbar h1 {
  margin: 0;
  font-size: 1.55rem;
}

.topbar p {
  margin: 0.2rem 0 0;
  color: var(--muted);
}

.page-nav {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.page-nav a {
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  background: #f7fafc;
  border-radius: 0.5rem;
  padding: 0.38rem 0.62rem;
  font-size: 0.94rem;
}

.page-nav a.active {
  background: var(--primary);
  border-color: var(--primary-dark);
  color: #ffffff;
}

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

.servers-workspace {
  display: grid;
  grid-template-columns: minmax(18rem, 22rem) minmax(0, 1fr);
  gap: 0.9rem;
  margin-top: 0.8rem;
  align-items: start;
}

.servers-sidebar {
  min-width: 0;
}

.servers-content {
  min-width: 0;
}

.servers-content > .panel-grid:first-child {
  margin-top: 0;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  border: 1px solid var(--primary-dark);
  background: var(--primary);
  color: #ffffff;
  border-radius: 0.45rem;
  padding: 0.44rem 0.68rem;
  cursor: pointer;
}

button:hover {
  filter: brightness(1.05);
}

button:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 0.45rem;
  padding: 0.43rem 0.52rem;
  background: #ffffff;
  color: var(--ink);
}

input:focus,
select:focus,
textarea:focus,
button:focus {
  outline: 2px solid #2d8d7f;
  outline-offset: 1px;
}

.selector-grid,
.panel-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
  margin-top: 0.8rem;
}

.panel-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.selector-grid.two-col,
.panel-grid.two-col {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.selector-grid.four-col {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  padding: 0.75rem;
  box-shadow: 0 4px 15px #13232e0f;
}

.card h2 {
  margin: 0 0 0.58rem;
  font-size: 1.02rem;
}

.card h3 {
  margin: 0.75rem 0 0.42rem;
  font-size: 0.93rem;
}

.list {
  border: 1px solid var(--line);
  border-radius: 0.55rem;
  background: #fcfdff;
  max-height: 14rem;
  overflow: auto;
}

.list-item {
  width: 100%;
  text-align: left;
  border: none;
  border-radius: 0;
  border-bottom: 1px solid #e4ebf0;
  background: transparent;
  color: var(--ink);
  padding: 0.42rem 0.5rem;
}

.list-item:last-child {
  border-bottom: none;
}

.list-item small {
  display: block;
  color: var(--muted);
}

.list-item.active {
  background: #e8f5f2;
  font-weight: 600;
}

.list-item.empty {
  color: var(--muted);
  font-style: italic;
}

.badge {
  display: inline-block;
  margin-left: 0.3rem;
  padding: 0.08rem 0.3rem;
  border-radius: 999px;
  font-size: 0.74rem;
  color: #1f5e51;
  background: #dcedea;
}

.server-tree-card {
  position: sticky;
  top: 0.8rem;
}

.server-tree-search {
  width: 100%;
}

.server-tree {
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  background: linear-gradient(180deg, #fdfefe 0%, #f6fafb 100%);
  padding: 0.6rem;
  max-height: calc(100vh - 7.5rem);
  overflow: auto;
}

.server-tree-root {
  display: grid;
  gap: 0.12rem;
  padding: 0.15rem 0.2rem 0.55rem;
}

.server-tree-root-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.server-tree-root strong {
  font-size: 0.98rem;
}

.server-tree-root small {
  color: var(--muted);
}

.server-tree-branch {
  position: relative;
  padding-left: 0.85rem;
}

.server-tree-branch + .server-tree-branch {
  margin-top: 0.38rem;
}

.server-tree-branch::before {
  content: "";
  position: absolute;
  left: 0.38rem;
  top: 0.3rem;
  bottom: 0.45rem;
  width: 1px;
  background: #d8e3e6;
}

.server-tree-children {
  position: relative;
  margin-left: 1rem;
  padding-left: 0.8rem;
}

.server-tree-children::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0.55rem;
  width: 1px;
  background: #d8e3e6;
}

.server-tree-children-root {
  margin-left: 0;
  padding-left: 0.8rem;
}

.tree-folder-row {
  display: grid;
  grid-template-columns: 1rem minmax(0, 1fr);
  gap: 0.3rem;
  align-items: start;
}

.tree-toggle,
.tree-toggle-spacer {
  width: 1rem;
  min-height: 2rem;
  margin-top: 0.18rem;
}

.tree-toggle {
  padding: 0;
  border: 1px solid transparent;
  border-radius: 0.35rem;
  background: transparent;
}

.tree-toggle:hover {
  filter: none;
  background: #e9f1ef;
  border-color: #d5e0dc;
}

.tree-toggle::before {
  content: "";
  display: block;
  width: 0;
  height: 0;
  margin: 0 auto;
  border-top: 0.28rem solid transparent;
  border-bottom: 0.28rem solid transparent;
  border-left: 0.38rem solid #61727c;
  transform-origin: 32% 50%;
  transition: transform 140ms ease;
}

.tree-toggle.expanded::before {
  transform: rotate(90deg);
}

.tree-toggle-spacer {
  display: block;
}

.tree-node {
  width: 100%;
  display: grid;
  gap: 0.15rem;
  text-align: left;
  color: var(--ink);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 0.68rem;
  padding: 0.52rem 0.58rem;
}

.tree-node:hover {
  filter: none;
  background: #f1f7f6;
}

.tree-node strong {
  font-size: 0.92rem;
}

.tree-node small {
  display: block;
  color: var(--muted);
}

.tree-node.active {
  border-color: #8cc8bc;
  background: linear-gradient(180deg, #e8f5f2 0%, #def1ec 100%);
  box-shadow: inset 0 0 0 1px #c3e4dc;
}

.tree-node-partner {
  background: #f5faf8;
  border-color: #dbe7e3;
}

.tree-node-customer {
  position: relative;
  margin-top: 0.28rem;
  background: #fbfcfd;
  border-color: #edf2f5;
  padding-left: 0.75rem;
}

.tree-node-customer::before {
  content: "";
  position: absolute;
  left: -0.82rem;
  top: 50%;
  width: 0.62rem;
  height: 1px;
  transform: translateY(-50%);
  background: #d8e3e6;
}

.server-tree-empty {
  padding: 0.5rem 0.2rem 0.2rem;
  color: var(--muted);
  font-size: 0.88rem;
  font-style: italic;
}

.stack-form {
  display: grid;
  gap: 0.45rem;
}

.inline-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem;
}

.compact-top {
  margin-top: 0.6rem;
}

.summary {
  border: 1px dashed var(--line-strong);
  border-radius: 0.56rem;
  background: #fafcfe;
  color: var(--muted);
  padding: 0.5rem;
  min-height: 2.2rem;
}

.inline-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.58rem;
}

.table-wrap {
  border: 1px solid var(--line);
  border-radius: 0.55rem;
  overflow: auto;
  max-height: 19rem;
  background: #ffffff;
}

.table-wrap table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.89rem;
}

.table-wrap th,
.table-wrap td {
  text-align: left;
  border-bottom: 1px solid #e4ebf0;
  padding: 0.34rem 0.46rem;
}

.table-wrap th {
  position: sticky;
  top: 0;
  background: #f1f5f8;
}

.table-wrap caption {
  text-align: left;
  padding: 0.35rem 0.45rem;
  color: var(--muted);
}

.check-line {
  display: flex;
  align-items: center;
  gap: 0.38rem;
  color: var(--muted);
}

.check-line input[type="checkbox"] {
  width: auto;
}

#clusterConfigEditor {
  font-family: "Cascadia Code", Consolas, monospace;
  margin-top: 0.35rem;
}

.status-line {
  margin: 0.8rem 0 0;
  min-height: 1.3rem;
  color: var(--muted);
}

.status-line.ok {
  color: var(--ok);
}

.status-line.error {
  color: var(--error);
}

.span-2 {
  grid-column: span 2;
}

.action-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.action-tabs button {
  background: #eef2f6;
  color: var(--ink);
  border: 1px solid var(--line-strong);
}

.action-tabs button.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary-dark);
}

.source-action-group {
  border-top: 1px solid #e4ebf0;
  padding-top: 0.55rem;
}

.action-cell {
  white-space: nowrap;
}

.action-cell button {
  margin-right: 0.35rem;
  padding: 0.28rem 0.46rem;
}

.vm-run-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
}

.vm-run-controls select {
  min-width: 9.5rem;
}

.task-log {
  margin-top: 0.6rem;
  border-top: 1px solid #e4ebf0;
  padding-top: 0.55rem;
}

.task-log-content {
  margin: 0.4rem 0 0;
  max-height: 18rem;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 0.48rem;
  padding: 0.55rem;
  background: #f8fbfd;
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: 0.8rem;
  line-height: 1.35;
  white-space: pre-wrap;
  word-break: break-word;
}

.login-screen {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: #1d2934d8;
  z-index: 30;
}

.login-screen.visible {
  display: flex;
}

.login-card {
  width: min(30rem, 92vw);
  display: grid;
  gap: 0.55rem;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 0.78rem;
  padding: 1rem;
}

.login-card h2 {
  margin: 0 0 0.35rem;
}

.login-note {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.hidden {
  display: none !important;
}

@media (max-width: 1120px) {
  .topbar {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .topbar-actions {
    justify-content: flex-start;
  }

  .selector-grid,
  .panel-grid,
  .selector-grid.two-col,
  .panel-grid.two-col,
  .selector-grid.four-col,
  .servers-workspace {
    grid-template-columns: 1fr;
  }

  .inline-form {
    grid-template-columns: 1fr;
  }

  .span-2 {
    grid-column: auto;
  }

  .server-tree-card {
    position: static;
  }

  .server-tree {
    max-height: none;
  }
}