:root {
  --bg: #f5f7fb;
  --panel: #ffffff;
  --text: #18202f;
  --muted: #687385;
  --line: #dfe5ee;
  --brand: #2563eb;
  --brand-quiet: #e9f0ff;
  --ok: #15a36b;
  --warn: #d98f00;
  --danger: #d64545;
  --ink: #27313f;
  --shadow: 0 18px 45px rgba(31, 41, 55, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", "Noto Sans TC", "Microsoft JhengHei", Arial, sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 22px 18px;
  background: #101826;
  color: #e6edf7;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px;
}

.brand-logo {
  display: block;
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  border-radius: 8px;
  object-fit: contain;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  margin-top: 2px;
  color: #9fb0c7;
}

.nav {
  display: grid;
  gap: 6px;
}

.nav a,
.logout {
  border-radius: 8px;
  padding: 11px 12px;
  color: #b8c6d9;
}

.nav a.active,
.nav a:hover,
.logout:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

.logout {
  margin-top: auto;
}

.main {
  min-width: 0;
  padding: 22px 28px 36px;
}

.topbar {
  height: 34px;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 13px;
}

.server-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ok);
}

.refresh-countdown {
  margin-right: auto;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #ffffff;
  color: var(--muted);
  padding: 5px 10px;
  font-size: 13px;
}

.page-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 10px 0 18px;
}

.page-heading h1 {
  margin: 0;
  font-size: 28px;
  line-height: 1.2;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--brand);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.panel,
.table-panel,
.robot-card,
.metric {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.token-panel {
  max-width: 620px;
  padding: 24px;
}

.form-grid {
  display: grid;
  gap: 16px;
}

.form-grid label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 14px;
}

.form-grid input {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
}

.form-actions {
  display: flex;
  justify-content: flex-end;
}

.primary-button,
.secondary-button {
  min-height: 40px;
  border: 0;
  border-radius: 8px;
  padding: 0 16px;
  cursor: pointer;
}

.primary-button {
  background: var(--brand);
  color: #ffffff;
  font-weight: 700;
}

.secondary-button {
  border: 1px solid var(--line);
  background: #ffffff;
  color: var(--ink);
}

.notice {
  margin-bottom: 14px;
  border-radius: 8px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: #ffffff;
}

.notice-success {
  border-color: #bfe6d6;
  background: #eefbf6;
  color: #0e7a4f;
}

.notice-error {
  border-color: #f4c7c7;
  background: #fff1f1;
  color: #a83232;
}

.robot-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.robot-card {
  padding: 18px;
}

.robot-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.status-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--muted);
}

.status-running .status-dot {
  background: var(--ok);
}

.status-starting .status-dot,
.status-stale .status-dot {
  background: var(--warn);
}

.status-error .status-dot,
.status-stopped .status-dot,
.status-invalid .status-dot,
.status-missing .status-dot {
  background: var(--danger);
}

.status-label {
  margin-left: auto;
  border-radius: 999px;
  padding: 5px 10px;
  background: var(--brand-quiet);
  color: var(--brand);
  font-size: 13px;
  font-weight: 700;
}

.robot-card h2 {
  margin: 18px 0 6px;
  font-size: 20px;
}

.robot-card p {
  min-height: 44px;
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.5;
}

.robot-card dl {
  display: grid;
  gap: 10px;
  margin: 0;
}

.robot-card dl div {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 10px;
}

.robot-card dt {
  color: var(--muted);
}

.robot-card dd {
  margin: 0;
  min-width: 0;
  word-break: break-word;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}

.metric {
  padding: 16px;
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.metric strong {
  display: block;
  margin-top: 8px;
  font-size: 24px;
}

.metric-danger strong {
  color: var(--danger);
}

.table-panel {
  overflow: auto;
}

.data-table {
  width: 100%;
  min-width: 860px;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  border-bottom: 1px solid var(--line);
  padding: 13px 14px;
  text-align: left;
  white-space: nowrap;
}

.data-table th {
  color: var(--muted);
  background: #f8fafc;
  font-size: 13px;
}

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

.drag-column {
  width: 46px;
}

.drag-handle {
  color: var(--muted);
  cursor: grab;
  user-select: none;
}

.dragging {
  opacity: 0.55;
}

.amount-danger {
  color: var(--danger);
  font-weight: 800;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  border-radius: 999px;
  padding: 0 10px;
  font-size: 13px;
  font-weight: 700;
}

.pill-danger {
  background: #fff1f1;
  color: var(--danger);
}

.flow-layout {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 16px;
  min-height: calc(100vh - 150px);
}

.flow-list {
  overflow: auto;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.flow-list a {
  display: block;
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.4;
}

.flow-list a.selected,
.flow-list a:hover {
  background: var(--brand-quiet);
  color: var(--brand);
}

.flow-viewer {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.flow-viewer iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: calc(100vh - 154px);
  border: 0;
}

.empty-state {
  display: grid;
  min-height: 240px;
  place-items: center;
  color: var(--muted);
}

@media (max-width: 1100px) {
  .robot-grid,
  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .flow-layout {
    grid-template-columns: 1fr;
  }

  .flow-list {
    max-height: 220px;
  }
}

@media (max-width: 760px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }

  .main {
    padding: 18px;
  }

  .page-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .robot-grid,
  .metric-grid {
    grid-template-columns: 1fr;
  }
}