:root {
  color-scheme: light;
  font-family: ui-sans-serif, system-ui, sans-serif;
  background: #f4f6f8;
  color: #17212b;
  --page: #f4f6f8;
  --page-accent: #e8eef3;
  --surface: #fff;
  --inset: #f6f8fa;
  --border: #d0d7de;
  --border-strong: #8c99a5;
  --text: #17212b;
  --muted: #596878;
  --muted-low: #7a8793;
  --accent: #087f71;
  --accent-hover: #0a6c61;
  --on-accent: #fff;
  --link: #0969da;
  --focus: #d29922;
  --danger: #cf3f36;
  --danger-bg: #b42318;
  --danger-hover: #8f1f18;
  --warning: #9a6700;
  --warning-bg: #fff8c5;
  --warning-text: #5d4300;
  --shadow: #1f232826;
  --code: #f6f8fa;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    background: #0d1117;
    color: #f0f6fc;
    --page: #0d1117;
    --page-accent: #161b22;
    --surface: #161b22;
    --inset: #0d1117;
    --border: #30363d;
    --border-strong: #586069;
    --text: #f0f6fc;
    --muted: #aab4c0;
    --muted-low: #7d8590;
    --accent: #3fb6a8;
    --accent-hover: #56c9bb;
    --on-accent: #061a17;
    --link: #58a6ff;
    --focus: #d29922;
    --danger: #ff7b72;
    --danger-bg: #9e2f2b;
    --danger-hover: #bd3f38;
    --warning: #d29922;
    --warning-bg: #3b2c0a;
    --warning-text: #f0d58c;
    --shadow: #0008;
    --code: #090c10;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(145deg, var(--page) 0%, var(--page-accent) 100%);
  color: var(--text);
}

.auth-shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 2rem 1rem;
}

.auth-card {
  width: min(100%, 30rem);
  padding: clamp(1.5rem, 5vw, 3rem);
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: var(--surface);
  box-shadow: 0 1.5rem 4rem var(--shadow);
}

.auth-card.wide {
  width: min(100%, 36rem);
}

.eyebrow {
  margin: 0 0 .75rem;
  color: var(--accent);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(1.8rem, 6vw, 2.6rem);
  line-height: 1.08;
}

.lede {
  margin: 1rem 0 1.75rem;
  color: var(--muted);
  line-height: 1.55;
}

form {
  display: grid;
  gap: .75rem;
  margin-top: 1rem;
}

label {
  font-weight: 650;
}

input,
button {
  width: 100%;
  min-height: 3rem;
  border: 1px solid var(--border-strong);
  border-radius: .6rem;
  font: inherit;
}

input {
  padding: .7rem .85rem;
  background: var(--inset);
  color: inherit;
}

button {
  padding: .7rem 1rem;
  border-color: var(--accent);
  background: var(--accent);
  color: var(--on-accent);
  cursor: pointer;
  font-weight: 750;
}

button:hover {
  background: var(--accent-hover);
}

button:focus-visible,
input:focus-visible,
a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

button:disabled {
  cursor: wait;
  opacity: .65;
}

.status {
  min-height: 1.5rem;
  margin: 1.25rem 0 0;
  color: var(--muted);
}

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

.status.success {
  color: var(--accent-hover);
}

.secondary-link {
  margin: 1.5rem 0 0;
}

a {
  color: var(--link);
}

[hidden] {
  display: none;
}

.operator-shell {
  padding: clamp(1rem, 3vw, 2.5rem);
}

.operator-header,
.operator-main {
  width: min(100%, 100rem);
  margin-inline: auto;
}

.operator-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  padding-block: 1rem 2rem;
}

.operator-header h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

.logout-form {
  margin: 0;
}

.secondary-button {
  min-height: 2.6rem;
  border-color: var(--border-strong);
  background: var(--inset);
  color: var(--text);
}

.secondary-button:hover {
  background: var(--page-accent);
}

.queue-fragment {
  display: grid;
  gap: 1.25rem;
}

.warning {
  padding: 1rem 1.2rem;
  border: 1px solid var(--warning);
  border-radius: .7rem;
  background: var(--warning-bg);
  color: var(--warning-text);
}

.metric-grid,
.state-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: .75rem;
}

.metric-card,
.state-count {
  display: grid;
  gap: .45rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: .75rem;
  background: var(--surface);
}

.metric-card span,
.state-count span,
.table-header p,
.page-count,
.muted {
  color: var(--muted);
}

.metric-card strong {
  font-size: 1.35rem;
}

.state-count {
  border-left-width: .35rem;
}

.queued,
.promoted,
.delivered {
  border-left-color: var(--accent);
}

.rejected,
.failed,
.discarded {
  border-left-color: var(--danger);
}

.deferred,
.relaying,
.uncertain {
  border-left-color: var(--warning);
}

.table-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-top: .75rem;
}

.table-header h2,
.table-header p {
  margin: 0;
}

.table-header p {
  margin-top: .35rem;
}

.queue-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: .75rem;
  background: var(--surface);
}

.queue-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .88rem;
}

.queue-table th,
.queue-table td {
  padding: .8rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.queue-table th {
  color: var(--muted);
  font-size: .74rem;
  letter-spacing: .06em;
  text-transform: uppercase;
}

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

.attempt-id,
.address {
  display: block;
  margin-top: .35rem;
  white-space: nowrap;
}

.attempt-id,
.recipient {
  color: var(--muted);
  font-size: .78rem;
}

.state-pill {
  display: inline-block;
  padding: .25rem .5rem;
  border: 1px solid var(--border-strong);
  border-left-width: .3rem;
  border-radius: 999px;
  white-space: nowrap;
}

.empty-queue {
  padding: 3rem !important;
  color: var(--muted);
  text-align: center !important;
}

.pagination {
  display: flex;
  justify-content: flex-end;
  gap: .75rem;
}

.pagination a,
.pagination span {
  min-width: 6rem;
  padding: .65rem .9rem;
  border: 1px solid var(--border-strong);
  border-radius: .55rem;
  text-align: center;
  text-decoration: none;
}

.pagination span {
  color: var(--muted-low);
}

.detail-main {
  display: grid;
  gap: 1rem;
}

.detail-heading,
.detail-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.detail-heading h2,
.detail-card h3,
.scan-card h4,
.event-card h4 {
  margin: 0;
}

.detail-heading code {
  display: block;
  margin-top: .5rem;
  color: var(--muted);
}

.button-link {
  display: inline-block;
  padding: .7rem 1rem;
  border: 1px solid var(--accent);
  border-radius: .6rem;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 750;
  text-decoration: none;
}

.action-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.action-grid form {
  align-content: start;
  margin: 0;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: .6rem;
  background: var(--inset);
}

.confirmed-action label {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: .65rem;
  color: var(--warning-text);
  font-size: .9rem;
  line-height: 1.4;
}

.confirmed-action input[type="checkbox"] {
  width: 1.2rem;
  min-height: 1.2rem;
  margin: .1rem 0 0;
}

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

.danger-button:hover {
  background: var(--danger-hover);
}

.warning-button {
  border-color: var(--focus);
  background: var(--warning);
  color: var(--on-accent);
}

.warning-button:hover {
  background: var(--focus);
}

.health-main {
  display: grid;
  gap: 1.25rem;
}

.health-heading,
.health-card-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.health-heading {
  padding: 1.15rem;
  border: 1px solid var(--border);
  border-radius: .75rem;
  background: var(--surface);
}

.health-heading h2,
.health-heading p,
.health-card h3,
.health-card p {
  margin: 0;
}

.health-heading p,
.health-card p {
  margin-top: .55rem;
  color: var(--muted);
}

.health-pill {
  padding: .45rem .7rem;
  border: 1px solid currentcolor;
  border-radius: 999px;
}

.health-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  gap: 1rem;
}

.health-card {
  padding: 1.15rem;
  border: 1px solid var(--border);
  border-left-width: .4rem;
  border-radius: .75rem;
  background: var(--surface);
}

.health-ready {
  border-left-color: var(--accent);
  color: var(--accent-hover);
}

.health-degraded {
  border-left-color: var(--warning);
  color: var(--warning);
}

.health-unavailable {
  border-left-color: var(--danger);
  color: var(--danger);
}

.health-card p {
  overflow-wrap: anywhere;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
  gap: 1rem;
}

.detail-card {
  min-width: 0;
  padding: 1.15rem;
  border: 1px solid var(--border);
  border-radius: .75rem;
  background: var(--surface);
}

.detail-card dl,
.header-list {
  display: grid;
  grid-template-columns: minmax(8rem, max-content) minmax(0, 1fr);
  gap: .55rem 1rem;
  margin-bottom: 0;
}

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

.detail-card dd {
  min-width: 0;
  margin: 0;
  overflow-wrap: anywhere;
}

.detail-table-wrap {
  margin-top: 1rem;
  overflow-x: auto;
}

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

.detail-table th,
.detail-table td {
  padding: .65rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.message-preview {
  max-height: 34rem;
  margin: 1rem 0 0;
  padding: 1rem;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: .55rem;
  background: var(--code);
  color: var(--text);
  font: .9rem/1.5 ui-monospace, monospace;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.scan-card,
.event-card {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.symbol-list,
.audit-list {
  line-height: 1.55;
}

.omission,
.warning-inline {
  color: var(--warning);
}

@media (max-width: 50rem) {
  .operator-header,
  .table-header,
  .detail-heading,
  .detail-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .logout-form,
  .logout-form button {
    width: 100%;
  }

  .detail-grid {
    grid-template-columns: 1fr;
  }

  .detail-card dl,
  .header-list {
    grid-template-columns: 1fr;
  }
}