:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --text: #17212b;
  --muted: #637083;
  --line: #dce2ea;
  --accent: #126dff;
  --accent-dark: #0c54c6;
  --good: #127b4d;
  --good-bg: #e6f7ef;
  --warn: #8a5b00;
  --warn-bg: #fff4d6;
  --bad: #a52626;
  --bad-bg: #ffe5e5;
  --shadow: 0 10px 24px rgba(23, 33, 43, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1.45;
}

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

a:hover {
  text-decoration: underline;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 0 24px;
  background: #111923;
  color: #fff;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08);
}

.brand {
  color: #fff;
  font-weight: 800;
  letter-spacing: 0;
}

.topbar nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.topbar nav a,
.nav-logout button {
  color: #d9e4f2;
  background: transparent;
  border: 0;
  padding: 8px 10px;
  border-radius: 6px;
  font: inherit;
  cursor: pointer;
}

.topbar nav a:hover,
.nav-logout button:hover {
  background: rgba(255, 255, 255, 0.08);
  text-decoration: none;
}

.nav-logout {
  margin: 0;
}

.shell {
  width: min(1360px, calc(100vw - 32px));
  margin: 24px auto 56px;
}

.auth .shell {
  min-height: calc(100vh - 110px);
  display: grid;
  place-items: center;
}

.auth-panel {
  width: min(420px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 28px;
}

.auth-panel.wide {
  width: min(760px, 100%);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 6px;
  font-size: 28px;
  line-height: 1.15;
}

h2 {
  font-size: 17px;
  margin-bottom: 16px;
}

p {
  color: var(--muted);
}

.page-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.page-head p {
  margin-bottom: 0;
}

.button-row,
.actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(130px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.stat,
.panel,
.callout,
.empty-state {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 1px 1px rgba(23, 33, 43, 0.03);
}

.stat {
  padding: 16px;
}

.stat strong {
  display: block;
  font-size: 27px;
  line-height: 1;
}

.stat span {
  display: block;
  color: var(--muted);
  margin-top: 6px;
}

.panel,
.callout,
.empty-state {
  padding: 18px;
  margin-bottom: 18px;
}

.panel.narrow {
  max-width: 900px;
}

.two-col,
.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.48fr);
  gap: 18px;
  align-items: start;
}

.detail-grid {
  grid-template-columns: minmax(0, 0.72fr) minmax(360px, 0.28fr);
}

.callout {
  border-left: 4px solid var(--accent);
}

.callout strong {
  font-size: 18px;
}

.filters {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) 180px auto;
  gap: 10px;
  margin-bottom: 16px;
}

label {
  display: grid;
  gap: 6px;
  color: #2a3645;
  font-weight: 650;
}

input,
select,
textarea {
  width: 100%;
  min-height: 40px;
  border: 1px solid #cfd7e2;
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  padding: 9px 10px;
  font: inherit;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(18, 109, 255, 0.18);
  border-color: var(--accent);
}

button,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  border: 1px solid #c5cfdb;
  border-radius: 6px;
  background: #fff;
  color: #1f2c3a;
  padding: 8px 12px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

button:hover,
.button:hover {
  background: #f3f6fa;
  text-decoration: none;
}

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

.primary:hover,
button.primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.danger,
button.danger {
  border-color: #efb0b0;
  color: var(--bad);
}

.tiny,
button.tiny {
  min-height: 30px;
  padding: 5px 9px;
  font-size: 12px;
}

.stack {
  display: grid;
  gap: 14px;
}

.stack.compact {
  gap: 10px;
}

.grid-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.span-2,
.form-actions {
  grid-column: 1 / -1;
}

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

.inline {
  display: inline-flex;
  margin: 0;
}

.compact-form {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.connector-form {
  display: grid;
  grid-template-columns: minmax(160px, 1fr) auto;
  gap: 8px;
  align-items: center;
}

.connector-form input {
  min-height: 32px;
  padding: 5px 8px;
}

.metric-list,
.link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.metric-list {
  display: grid;
  gap: 4px;
}

.metric-list span {
  color: var(--muted);
}

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

.edit-row td {
  background: #fbfcfe;
  padding-top: 12px;
  padding-bottom: 14px;
}

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

th,
td {
  padding: 11px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: #526073;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  background: #f8fafc;
}

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

.subline {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
  max-width: 720px;
  overflow-wrap: anywhere;
}

.muted {
  color: var(--muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  margin: 1px 4px 1px 0;
  padding: 2px 7px;
  border-radius: 999px;
  background: #eef2f7;
  color: #39475a;
  font-size: 12px;
  font-weight: 700;
  text-transform: capitalize;
}

.badge.good {
  background: var(--good-bg);
  color: var(--good);
}

.badge.warn {
  background: var(--warn-bg);
  color: var(--warn);
}

.badge.bad {
  background: var(--bad-bg);
  color: var(--bad);
}

.meta {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 10px 16px;
  margin: 0;
}

.meta dt {
  color: var(--muted);
  font-weight: 700;
}

.meta dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.flash {
  margin-bottom: 16px;
  border-radius: 8px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: #fff;
  font-weight: 700;
}

.flash-ok {
  background: var(--good-bg);
  color: var(--good);
  border-color: #b7ebd0;
}

.flash-bad {
  background: var(--bad-bg);
  color: var(--bad);
  border-color: #ffc3c3;
}

code {
  background: #eef2f7;
  border: 1px solid #dbe3ed;
  border-radius: 5px;
  padding: 2px 5px;
}

@media (max-width: 980px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    padding: 12px 16px;
  }

  .shell {
    width: min(100vw - 20px, 760px);
    margin-top: 16px;
  }

  .page-head,
  .two-col,
  .detail-grid {
    grid-template-columns: 1fr;
    display: grid;
  }

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

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

  .span-2,
  .form-actions {
    grid-column: auto;
  }

  table {
    min-width: 760px;
  }

  .panel {
    overflow-x: auto;
  }
}