:root {
  color-scheme: light;
  --color-bg: #f4f6f8;
  --color-surface: #ffffff;
  --color-surface-soft: #f8fafb;
  --color-text: #1f2933;
  --color-muted: #607080;
  --color-line: #d7dee6;
  --color-primary: #126c73;
  --color-primary-strong: #0b5359;
  --color-primary-soft: #e4f3f2;
  --color-success: #147344;
  --color-success-soft: #e6f5ed;
  --color-warning: #9a6200;
  --color-warning-soft: #fff4d8;
  --color-danger: #b42318;
  --color-danger-soft: #fde8e5;
  --color-ink: #16202a;
  --shadow-soft: 0 10px 28px rgba(31, 41, 51, 0.08);
  --radius: 8px;
  --space-1: 6px;
  --space-2: 10px;
  --space-3: 14px;
  --space-4: 18px;
  --space-5: 24px;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--color-bg);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--color-text);
  background:
    linear-gradient(180deg, rgba(18, 108, 115, 0.06), rgba(18, 108, 115, 0) 220px),
    var(--color-bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}

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

button {
  white-space: nowrap;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 28px;
  line-height: 1.2;
  letter-spacing: 0;
}

h2 {
  font-size: 18px;
  line-height: 1.35;
  letter-spacing: 0;
}

.app-shell {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  padding: 26px 0 40px;
}

.topbar,
.section-head,
.brand-block,
.top-actions,
.button-row,
.dialog-actions {
  display: flex;
  align-items: center;
}

.topbar {
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.brand-block {
  gap: var(--space-3);
  min-width: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  border-radius: 8px;
  background: var(--color-ink);
  color: #fff;
  font-size: 14px;
  font-weight: 800;
}

.eyebrow {
  margin-bottom: 4px;
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.top-actions {
  justify-content: flex-end;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.last-updated,
.summary-text,
.hint-text,
.form-error,
.node-meta,
.detail-label,
.lookup-meta {
  color: var(--color-muted);
  font-size: 13px;
}

.status-pill,
.badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 800;
  line-height: 1.2;
}

.status-muted,
.badge-muted {
  background: #edf1f4;
  color: var(--color-muted);
}

.status-ok,
.badge-on {
  background: var(--color-success-soft);
  color: var(--color-success);
}

.status-warn,
.badge-warn {
  background: var(--color-warning-soft);
  color: var(--color-warning);
}

.status-error,
.badge-error {
  background: var(--color-danger-soft);
  color: var(--color-danger);
}

.badge-style {
  background: var(--color-primary-soft);
  color: var(--color-primary-strong);
}

.badge-kill {
  background: var(--color-danger-soft);
  color: var(--color-danger);
}

.button {
  min-height: 38px;
  border: 1px solid transparent;
  border-radius: 7px;
  padding: 8px 13px;
  font-weight: 800;
  cursor: pointer;
  transition: background 0.16s ease, border-color 0.16s ease, color 0.16s ease, transform 0.16s ease, opacity 0.16s ease;
}

.button:hover:not(:disabled) {
  transform: translateY(-1px);
}

.button:disabled,
.is-loading .button {
  cursor: not-allowed;
  opacity: 0.56;
}

.button-primary {
  background: var(--color-primary);
  color: #fff;
}

.button-primary:hover:not(:disabled) {
  background: var(--color-primary-strong);
}

.button-secondary {
  background: var(--color-surface);
  border-color: var(--color-line);
  color: var(--color-text);
}

.button-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--color-muted);
}

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

.full-width {
  width: 100%;
}

input,
select,
textarea {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--color-line);
  border-radius: 7px;
  padding: 9px 11px;
  background: #fff;
  color: var(--color-text);
}

textarea {
  min-height: 118px;
  resize: vertical;
  line-height: 1.55;
}

input:focus,
select:focus,
textarea:focus,
.button:focus-visible {
  outline: 3px solid rgba(18, 108, 115, 0.18);
  outline-offset: 2px;
}

.panel,
.auth-panel,
.metric-card,
.node-card {
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.panel,
.node-section,
.operation-panel,
.lookup-layout,
.lookup-layout > *,
.lookup-form,
.lookup-results,
.table-wrap {
  min-width: 0;
}

.auth-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 460px);
  gap: var(--space-5);
  align-items: center;
  padding: 24px;
}

.auth-copy p:last-child {
  margin-top: 8px;
  color: var(--color-muted);
  line-height: 1.6;
}

.auth-form {
  display: grid;
  gap: 8px;
}

.auth-form label,
.field-group label,
.lookup-form label {
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 800;
}

.input-combo {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-2);
}

.form-error {
  min-height: 18px;
  color: var(--color-danger);
}

.dashboard.is-hidden,
.is-hidden {
  display: none !important;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.metric-card {
  padding: var(--space-4);
}

.metric-card span {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 700;
}

.metric-card strong {
  font-size: 30px;
  line-height: 1;
}

.console-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.38fr) minmax(330px, 0.82fr);
  gap: var(--space-3);
  align-items: start;
}

.panel {
  padding: var(--space-4);
}

.section-head {
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.node-list {
  display: grid;
  gap: var(--space-3);
}

.node-card {
  padding: var(--space-4);
}

.node-card.is-unconfigured {
  background: var(--color-surface-soft);
}

.node-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.node-title {
  min-width: 0;
}

.node-name {
  display: block;
  margin-bottom: 4px;
  font-size: 18px;
  font-weight: 850;
}

.node-meta {
  word-break: break-all;
}

.badge-stack {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-1);
}

.node-details {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-2);
  margin: var(--space-3) 0;
}

.detail-box {
  min-width: 0;
  border: 1px solid var(--color-line);
  border-radius: 7px;
  padding: var(--space-2);
  background: var(--color-surface-soft);
}

.detail-label {
  display: block;
  margin-bottom: 4px;
}

.detail-value {
  display: block;
  min-height: 20px;
  color: var(--color-text);
  font-weight: 800;
  word-break: break-word;
}

.node-actions {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.node-actions .button {
  flex: 1;
}

.node-message {
  margin-top: var(--space-2);
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.5;
}

.operation-panel {
  display: grid;
  gap: var(--space-3);
}

.action-panel {
  box-shadow: none;
}

.field-group {
  display: grid;
  gap: 7px;
  margin-bottom: var(--space-3);
}

.button-row {
  gap: var(--space-2);
}

.button-row .button {
  flex: 1;
}

.hint-text {
  margin-top: var(--space-2);
  line-height: 1.5;
}

.segmented-control {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-2);
  margin: 0 0 var(--space-3);
  padding: 0;
  border: 0;
}

.segmented-control legend {
  grid-column: 1 / -1;
  margin-bottom: 7px;
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 800;
}

.segmented-control label {
  display: block;
  min-width: 0;
}

.segmented-control input {
  position: absolute;
  width: 1px;
  height: 1px;
  min-height: 0;
  opacity: 0;
  pointer-events: none;
}

.segmented-control span {
  display: grid;
  place-items: center;
  min-height: 38px;
  border: 1px solid var(--color-line);
  border-radius: 7px;
  padding: 8px 9px;
  background: #fff;
  color: var(--color-text);
  font-size: 13px;
  font-weight: 800;
  text-align: center;
  cursor: pointer;
}

.segmented-control input:checked + span {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  color: var(--color-primary-strong);
}

.lookup-panel {
  margin-top: var(--space-3);
}

.lookup-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr);
  gap: var(--space-4);
  align-items: start;
}

.lookup-form {
  display: grid;
  gap: var(--space-2);
}

.lookup-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: var(--space-2);
}

.lookup-results {
  min-height: 168px;
}

.empty-state,
.error-state,
.loading-state {
  display: grid;
  align-content: center;
  min-height: 126px;
  border: 1px dashed var(--color-line);
  border-radius: var(--radius);
  padding: var(--space-4);
  background: var(--color-surface-soft);
  color: var(--color-muted);
  line-height: 1.55;
}

.error-state {
  border-color: rgba(180, 35, 24, 0.35);
  background: var(--color-danger-soft);
  color: var(--color-danger);
}

.loading-state {
  color: var(--color-primary-strong);
}

.table-wrap {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: #fff;
}

table {
  width: 100%;
  min-width: 980px;
  border-collapse: collapse;
}

th,
td {
  padding: 11px 12px;
  border-bottom: 1px solid var(--color-line);
  text-align: left;
  font-size: 13px;
  vertical-align: top;
}

th {
  background: var(--color-surface-soft);
  color: var(--color-muted);
  font-weight: 850;
}

tr:last-child td {
  border-bottom: 0;
}

.received-text {
  min-width: 260px;
  max-width: 520px;
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.55;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 22px;
  z-index: 20;
  max-width: min(560px, calc(100% - 24px));
  transform: translate(-50%, 14px);
  opacity: 0;
  pointer-events: none;
  border-radius: var(--radius);
  padding: 12px 14px;
  background: var(--color-ink);
  color: #fff;
  box-shadow: 0 18px 44px rgba(22, 32, 42, 0.22);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

.confirm-dialog {
  width: min(450px, calc(100% - 28px));
  border: 0;
  border-radius: var(--radius);
  padding: 0;
  color: var(--color-text);
  box-shadow: 0 24px 60px rgba(22, 32, 42, 0.28);
}

.confirm-dialog::backdrop {
  background: rgba(22, 32, 42, 0.45);
}

.confirm-dialog form {
  padding: var(--space-5);
}

.confirm-dialog p {
  margin: var(--space-2) 0 var(--space-4);
  color: var(--color-muted);
  line-height: 1.6;
}

.dialog-actions {
  justify-content: flex-end;
  gap: var(--space-2);
}

@media (max-width: 1060px) {
  .console-grid,
  .lookup-layout {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 860px) {
  .app-shell {
    width: min(100% - 20px, 1240px);
    padding-top: 16px;
  }

  .topbar,
  .auth-panel,
  .node-head,
  .section-head {
    align-items: stretch;
    flex-direction: column;
  }

  .top-actions,
  .button-row,
  .node-actions,
  .dialog-actions {
    width: 100%;
    align-items: stretch;
    flex-direction: column;
  }

  .top-actions .button,
  .button-row .button,
  .node-actions .button,
  .dialog-actions .button {
    width: 100%;
  }

  .auth-panel,
  .metrics-grid,
  .operation-panel,
  .node-details,
  .lookup-actions,
  .input-combo {
    grid-template-columns: 1fr;
  }

  .segmented-control {
    grid-template-columns: 1fr;
  }

  .badge-stack {
    justify-content: flex-start;
  }
}

@media (max-width: 520px) {
  h1 {
    font-size: 23px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }

  .metric-card strong {
    font-size: 26px;
  }
}