:root {
  color-scheme: dark;
  --bg: #121417;
  --surface: #1a1d23;
  --surface-2: #21252d;
  --surface-hover: #272c36;
  --border: #2b313c;
  --border-strong: #3a4252;
  --text: #e8ecf1;
  --text-muted: #8b95a5;
  --green: #3dd68c;
  --green-bg: rgba(61, 214, 140, 0.14);
  --green-border: rgba(61, 214, 140, 0.36);
  --red: #f06a6a;
  --red-bg: rgba(240, 106, 106, 0.14);
  --red-border: rgba(240, 106, 106, 0.38);
  --amber: #f0b429;
  --amber-bg: rgba(240, 180, 41, 0.15);
  --amber-border: rgba(240, 180, 41, 0.38);
  --blue: #4db5ff;
  --blue-bg: rgba(77, 181, 255, 0.14);
  --blue-border: rgba(77, 181, 255, 0.35);
  --mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
  --sans: "Inter", "PingFang SC", "SF Pro Text", -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 8px;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.48;
  -webkit-font-smoothing: antialiased;
}

.num, td[data-value], .kpi-val, .stat-value {
  font-variant-numeric: tabular-nums;
}

.mono {
  font-family: var(--mono);
}

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

.pos { color: var(--green); }
.neg { color: var(--red); }
.warn-txt { color: var(--amber); }
.info-txt { color: var(--blue); }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---- Login ---- */
.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
  background: radial-gradient(circle at 20% 10%, #1d2430 0%, var(--bg) 55%);
}

.login-shell {
  width: 100%;
  max-width: 420px;
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
}

.login-brand {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 22px;
}

.brand-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--green);
  margin-top: 6px;
  box-shadow: 0 0 12px var(--green);
  flex: none;
}

.login-brand h1 {
  margin: 0 0 4px 0;
  font-size: 18px;
  font-weight: 600;
}

.login-brand p {
  margin: 0;
  font-size: 12px;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

.field-group label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

input[type="text"],
input[type="password"],
input[type="number"],
input[type="date"],
select,
textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  color: var(--text);
  padding: 8px 10px;
  font-family: inherit;
  font-size: 13px;
}

input:focus, select:focus, textarea:focus, button:focus-visible, [tabindex="0"]:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.form-error {
  margin: 0 0 12px 0;
  padding: 8px 10px;
  border-radius: 6px;
  background: var(--red-bg);
  border: 1px solid var(--red-border);
  color: var(--red);
  font-size: 12px;
}

.login-foot {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  text-align: center;
}

/* ---- Buttons & Badges ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-radius: 6px;
  border: 1px solid var(--border-strong);
  background: var(--surface-2);
  color: var(--text);
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.14s ease, border-color 0.14s ease;
}

.btn:hover:not(:disabled) {
  background: var(--surface-hover);
  border-color: #4c566a;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-sm { padding: 4px 9px; font-size: 12px; }
.btn-block { width: 100%; padding: 9px 14px; font-size: 13px; }

.btn-primary {
  background: #238656;
  border-color: #2ea06a;
  color: #fff;
}
.btn-primary:hover:not(:disabled) {
  background: #2aa066;
  border-color: var(--green);
}

.btn-danger {
  background: rgba(240, 106, 106, 0.18);
  border-color: var(--red-border);
  color: #ffb0b0;
}
.btn-danger:hover:not(:disabled) {
  background: rgba(240, 106, 106, 0.30);
  border-color: var(--red);
  color: #fff;
}

.btn-open {
  background: rgba(77, 181, 255, 0.15);
  border-color: var(--blue-border);
  color: #9dd4ff;
}
.btn-open:hover:not(:disabled) {
  background: rgba(77, 181, 255, 0.28);
  border-color: var(--blue);
  color: #fff;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  border: 1px solid var(--border-strong);
  background: var(--surface-2);
  white-space: nowrap;
}

.badge-green { background: var(--green-bg); border-color: var(--green-border); color: var(--green); }
.badge-red { background: var(--red-bg); border-color: var(--red-border); color: var(--red); }
.badge-amber { background: var(--amber-bg); border-color: var(--amber-border); color: var(--amber); }
.badge-blue { background: var(--blue-bg); border-color: var(--blue-border); color: var(--blue); }

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  display: inline-block;
}
.dot-green { background: var(--green); box-shadow: 0 0 6px var(--green); }
.dot-yellow { background: var(--amber); }
.dot-red { background: var(--red); }

/* ---- Top Bar & Tabs ---- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(18, 20, 23, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.topbar-inner {
  max-width: 1520px;
  margin: 0 auto;
  padding: 10px 18px 0 18px;
}

.topbar-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.brand-title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.status-pills {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

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

/* Single-row horizontal scrollable tablist per tabs guide */
.tabs-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.tabs-nav [role="tab"] {
  flex: none;
  white-space: nowrap;
  position: relative;
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 8px 14px 10px 14px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border-radius: 6px 6px 0 0;
}

.tabs-nav [role="tab"]:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.tabs-nav [role="tab"][aria-selected="true"] {
  color: var(--text);
  font-weight: 600;
}

.tabs-nav [role="tab"][aria-selected="true"]::after {
  content: "";
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: 0;
  border-block-end: 3px solid var(--green);
}

/* ---- Main Layout ---- */
.main-wrap {
  max-width: 1520px;
  margin: 0 auto;
  padding: 16px 18px 40px 18px;
}

.alert-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 9px 14px;
  margin-bottom: 14px;
  border-radius: var(--radius);
  border: 1px solid var(--amber-border);
  background: var(--amber-bg);
  color: #f8d477;
  font-size: 12px;
}

.alert-banner.danger {
  border-color: var(--red-border);
  background: var(--red-bg);
  color: #ffc1c1;
}

.panel-section {
  margin-bottom: 16px;
}

.lazy-section {
  content-visibility: auto;
  contain-intrinsic-size: auto 420px;
}

@supports not (content-visibility: auto) {
  .lazy-section {
    contain: layout style paint;
  }
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}

.card-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.card-title {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
}

/* ---- Portfolio KPI Strip ---- */
.kpi-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(175px, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}

.kpi-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 11px 14px;
}

.kpi-label {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.kpi-val {
  font-size: 18px;
  font-weight: 600;
}

.kpi-sub {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ---- Figure 2 Leg Summary Cards ---- */
.leg-cards-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.leg-row-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 13px 16px;
  transition: border-color 0.14s ease;
}

.leg-row-card.active-leg {
  border-color: var(--green-border);
  box-shadow: inset 3px 0 0 var(--green);
}

.leg-row-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.leg-ident {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.leg-name {
  font-size: 15px;
  font-weight: 600;
}

.leg-actions {
  display: flex;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
}

.leg-metrics-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(110px, 1fr)) 190px;
  gap: 12px;
  align-items: center;
}

.spark-box {
  width: 190px;
  height: 44px;
}

@media (max-width: 1024px) {
  .leg-metrics-grid {
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  }
  .spark-box {
    width: 100%;
    max-width: 240px;
  }
}

/* ---- Figure 3 Deep Leg Inspection ---- */
.six-metrics-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}

.deep-split {
  display: grid;
  grid-template-columns: 1fr 290px;
  gap: 14px;
  margin-bottom: 14px;
}

@media (max-width: 1080px) {
  .deep-split {
    grid-template-columns: 1fr;
  }
}

.chart-box-main {
  width: 100%;
  height: 410px;
}

.chart-box-daily {
  width: 100%;
  height: 250px;
}

.chart-box-shadow {
  width: 100%;
  height: 310px;
}

.range-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.btn-group {
  display: inline-flex;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  overflow: hidden;
}

.btn-group button {
  background: var(--surface-2);
  border: none;
  border-right: 1px solid var(--border);
  color: var(--text-muted);
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
}

.btn-group button:last-child { border-right: none; }
.btn-group button.active {
  background: #238656;
  color: #fff;
}

.side-kv-list {
  display: flex;
  flex-direction: column;
}

.side-kv-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  padding: 7px 0;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}

.side-kv-row:last-child { border-bottom: none; }

/* ---- Responsive & Sortable Tables ---- */
.table-scroll-wrap {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: auto;
  max-height: 440px;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #16191e;
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  text-align: left;
}

table.data-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--surface-2);
  color: var(--text-muted);
  font-weight: 500;
  border-bottom: 1px solid var(--border-strong);
  white-space: nowrap;
  padding: 7px 10px;
}

table.data-table td {
  padding: 6px 10px;
  border-bottom: 1px solid rgba(43, 49, 60, 0.55);
  white-space: nowrap;
}

table.data-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

.sort-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: none;
  border: none;
  color: inherit;
  font: inherit;
  padding: 0;
  cursor: pointer;
}

.sort-btn:hover {
  color: var(--text);
}

.sort-ind::before {
  content: "↕";
  opacity: 0.45;
  font-size: 11px;
}

th[aria-sort="ascending"] .sort-ind::before {
  content: "↑";
  opacity: 1;
  color: var(--green);
}

th[aria-sort="descending"] .sort-ind::before {
  content: "↓";
  opacity: 1;
  color: var(--green);
}

/* ---- Terminal Log Stream ---- */
.log-terminal {
  background: #0e1013;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.5;
  max-height: 270px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-word;
  color: #c5ced9;
}

.two-col-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
  gap: 14px;
}

@media (max-width: 520px) {
  .two-col-grid {
    grid-template-columns: 1fr;
  }
}

/* ---- Progress & Governance Cards ---- */
.gov-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 12px;
}

.gov-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 13px 15px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.gov-card.overridden {
  border-color: var(--blue-border);
}

.lights-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  color: var(--text-muted);
}

.light-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ---- Native Modal Dialog (per dialog + scroll containment guide) ---- */
dialog.panel-dialog {
  margin: auto;
  width: min(560px, calc(100vw - 24px));
  max-height: calc(100vh - 32px);
  overflow-y: auto;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  padding: 20px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.65);
}

dialog.panel-dialog:modal {
  overscroll-behavior: contain;
}

dialog.panel-dialog::backdrop {
  background: rgba(6, 8, 12, 0.72);
  backdrop-filter: blur(3px);
  overflow: hidden;
  overscroll-behavior: contain;
}

.dialog-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.dialog-title {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
}

.dialog-warn-box {
  padding: 10px 12px;
  border-radius: 6px;
  background: var(--red-bg);
  border: 1px solid var(--red-border);
  color: #ffc1c1;
  font-size: 12px;
  margin-bottom: 12px;
}

.dialog-info-box {
  padding: 10px 12px;
  border-radius: 6px;
  background: var(--blue-bg);
  border: 1px solid var(--blue-border);
  color: #bfe4ff;
  font-size: 12px;
  margin-bottom: 12px;
}

.dialog-foot {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 90;
  max-width: 380px;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 10px 14px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
  font-size: 12px;
}