:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --surface-muted: #f8f9fb;
  --line: #d9dde5;
  --line-strong: #b8c0cc;
  --text: #1b1f27;
  --muted: #667085;
  --faint: #8a94a6;
  --accent: #1f2937;
  --accent-soft: #eef2f6;
  --danger: #b42318;
  --danger-soft: #fff1f0;
  --warning: #a15c07;
  --warning-soft: #fff7e6;
  --success: #087443;
  --success-soft: #ecfdf3;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background: var(--bg);
  font-family: "SF Pro Text", "Segoe UI", Arial, sans-serif;
  font-size: 14px;
}

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

button {
  min-height: 36px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  padding: 8px 12px;
  color: #ffffff;
  background: var(--accent);
  cursor: pointer;
  font-weight: 600;
}

button:hover {
  background: #111827;
}

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

button.secondary:hover,
button.dark-action:hover {
  background: var(--accent-soft);
}

button.danger-action {
  color: #ffffff;
  background: var(--danger);
  border-color: var(--danger);
}

button.danger-action:hover {
  background: #8f1b12;
}

input,
select,
textarea {
  width: 100%;
  min-height: 36px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  padding: 7px 10px;
  color: var(--text);
  background: #ffffff;
  outline: none;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(31, 41, 55, 0.12);
}

textarea {
  min-height: 96px;
  resize: vertical;
  line-height: 1.45;
  font-family: "SF Mono", Consolas, monospace;
}

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

h1 {
  margin-bottom: 0;
  font-size: 24px;
  line-height: 1.2;
  font-weight: 700;
}

h2 {
  margin-bottom: 4px;
  font-size: 18px;
  line-height: 1.3;
}

h3 {
  margin-bottom: 12px;
  font-size: 15px;
  line-height: 1.3;
}

p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.5;
}

.admin-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 100vh;
}

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

.login-view {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 24px;
}

.login-card {
  display: grid;
  gap: 22px;
  width: min(440px, 100%);
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--surface);
  padding: 24px;
}

.login-card h1 {
  margin-bottom: 8px;
}

.login-form {
  display: grid;
  gap: 10px;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
  border-right: 1px solid var(--line);
  background: var(--surface);
}

.brand {
  display: grid;
  gap: 2px;
  padding: 18px 18px 16px;
  border-bottom: 1px solid var(--line);
}

.brand strong {
  font-size: 17px;
}

.brand span,
.eyebrow {
  color: var(--faint);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.login-box,
.session-box {
  display: grid;
  gap: 8px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--surface-muted);
}

.login-box label,
.form-row label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.inline-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 48px;
  gap: 8px;
}

.session-state {
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--muted);
  background: #ffffff;
  font-size: 13px;
}

.session-state.is-active {
  color: var(--success);
  border-color: rgba(8, 116, 67, 0.35);
  background: var(--success-soft);
}

.nav-list {
  display: grid;
  padding: 10px;
}

.nav-item {
  justify-content: flex-start;
  width: 100%;
  min-height: 40px;
  border-color: transparent;
  color: var(--text);
  background: transparent;
  text-align: left;
}

.nav-item:hover,
.nav-item.is-active {
  color: var(--text);
  border-color: var(--line);
  background: var(--accent-soft);
}

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

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

.context-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.context-strip span {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--muted);
  background: var(--surface);
}

.page {
  display: none;
}

.page.is-active {
  display: grid;
  gap: 14px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-start;
}

.page-header.compact {
  margin-bottom: 8px;
}

.toolbar,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.panel,
.log-panel {
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--surface);
  padding: 14px;
}

.log-panel {
  margin-top: 18px;
}

.content-grid {
  display: grid;
  gap: 14px;
}

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

.content-grid.wide-left {
  grid-template-columns: minmax(360px, 0.9fr) minmax(420px, 1.1fr);
}

.content-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.form-grid {
  display: grid;
  gap: 12px;
  align-items: end;
}

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

.form-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.form-grid.four {
  grid-template-columns: 0.7fr 1.4fr 1.8fr 0.7fr;
}

.form-row {
  display: grid;
  gap: 6px;
  margin-bottom: 12px;
}

.ops-list,
.readiness-list,
.ops-summary,
.ops-alerts {
  display: grid;
  gap: 8px;
}

.ops-row,
.device-row,
.readiness-gate,
.ops-alert {
  display: grid;
  gap: 4px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--surface-muted);
  overflow-wrap: anywhere;
}

.ops-row strong,
.device-row strong,
.readiness-gate strong,
.ops-alert strong {
  font-size: 13px;
}

.ops-row span,
.device-row span,
.readiness-gate span,
.ops-alert span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.ops-row button {
  width: max-content;
  margin-top: 6px;
}

.device-row {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
}

.device-meta {
  display: grid;
  gap: 4px;
}

.ops-row.is-muted,
.device-row.is-muted {
  opacity: 0.65;
}

.ops-row.is-selected {
  border-color: var(--accent);
  background: #eef2f6;
}

.inline-action {
  min-height: 32px;
  padding: 6px 10px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 12px;
}

.metric-item {
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #ffffff;
}

.metric-item strong {
  display: block;
  font-size: 18px;
}

.metric-item span {
  color: var(--muted);
  font-size: 12px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.detail-block {
  display: grid;
  gap: 8px;
}

.detail-block h4 {
  margin: 0;
  font-size: 13px;
}

.user-detail {
  display: grid;
  gap: 12px;
}

.user-detail-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--surface-muted);
}

.user-detail-header > div:first-child {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.user-detail-header span {
  color: var(--muted);
  font-size: 12px;
  overflow-wrap: anywhere;
}

.readiness-summary {
  margin-bottom: 10px;
  color: var(--text);
  font-weight: 600;
}

.readiness-gate.is-pass,
.tesla-row.is-acked,
.tesla-row.is-completed,
.ops-summary-header.is-ok {
  border-color: rgba(8, 116, 67, 0.35);
  background: var(--success-soft);
}

.readiness-gate.is-warn,
.tesla-row.is-queued,
.tesla-row.is-sent,
.tesla-row.is-pending,
.ops-summary-header.is-warning {
  border-color: rgba(161, 92, 7, 0.35);
  background: var(--warning-soft);
}

.readiness-gate.is-fail,
.tesla-row.is-dangerous,
.tesla-row.is-failed,
.tesla-row.is-expired,
.ops-summary-header.is-critical,
.mobile-log-row.is-error,
.delivery-row.is-failed {
  border-color: rgba(180, 35, 24, 0.35);
  background: var(--danger-soft);
}

.mobile-log-row.is-warn,
.delivery-row.is-queued {
  border-color: rgba(161, 92, 7, 0.35);
  background: var(--warning-soft);
}

.ops-summary-header {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--surface-muted);
}

.ops-kpis {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 8px;
}

.ops-kpi {
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #ffffff;
}

.ops-kpi strong {
  display: block;
  font-size: 18px;
}

.ops-kpi span {
  color: var(--muted);
  font-size: 12px;
}

pre {
  min-height: 180px;
  max-height: 320px;
  overflow: auto;
  margin: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #101828;
  color: #e4e7ec;
  line-height: 1.55;
  white-space: pre-wrap;
}

@media (max-width: 1100px) {
  .admin-shell {
    grid-template-columns: 1fr;
  }

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

  .nav-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .content-grid.two,
  .content-grid.three,
  .content-grid.wide-left,
  .form-grid.four,
  .detail-grid,
  .metric-grid,
  .ops-kpis {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .admin-main {
    padding: 14px;
  }

  .topbar,
  .page-header,
  .user-detail-header {
    display: grid;
  }

  .context-strip {
    justify-content: flex-start;
  }

  .nav-list,
  .form-grid.two,
  .form-grid.three {
    grid-template-columns: 1fr;
  }

  .toolbar button,
  .button-row button {
    width: 100%;
  }
}