:root {
  color: #111827;
  background: #f9fafb;
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
}

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

button,
input,
select {
  font: inherit;
}

.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  flex: 0 0 16rem;
  min-height: 100vh;
  overflow-y: auto;
  background: #f3f4f6;
  color: #111827;
  box-shadow: 8px 0 24px rgba(15, 23, 42, 0.08);
  transition: flex-basis 0.2s ease;
}

.sidebar.collapsed {
  flex-basis: 4.75rem;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.25rem;
  border-bottom: 1px solid #e5e7eb;
}

.brand-kicker {
  color: #ca8a04;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.brand-title {
  font-weight: 700;
}

.sidebar.collapsed .brand-title,
.sidebar.collapsed .nav-label {
  display: none;
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem 0.75rem;
}

.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  color: #374151;
  font-size: 0.9rem;
  font-weight: 600;
}

.nav-link:hover,
.nav-link.active {
  background: #fef3c7;
  color: #111827;
}

.nav-link.active::before {
  position: absolute;
  top: 0.6rem;
  bottom: 0.6rem;
  left: 0;
  width: 4px;
  border-radius: 999px;
  background: #eab308;
  content: "";
}

.nav-icon {
  display: inline-grid;
  width: 1.25rem;
  height: 1.25rem;
  place-items: center;
  color: #b45309;
}

.nav-icon::before {
  font-size: 1rem;
  font-weight: 700;
  content: "•";
}

.nav-icon[data-icon="home"]::before {
  content: "H";
}

.nav-icon[data-icon="balance"]::before {
  content: "B";
}

.nav-icon[data-icon="download"]::before {
  content: "D";
}

.nav-icon[data-icon="api"]::before {
  content: "A";
}

.nav-icon[data-icon="trend"]::before {
  content: "T";
}

.nav-icon[data-icon="map"]::before {
  content: "M";
}

.content-wrapper {
  display: flex;
  flex: 1;
  min-width: 0;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid #e5e7eb;
  background: rgba(255, 255, 255, 0.92);
  padding: 1rem 1.5rem;
}

.topbar h1 {
  margin: 0;
  font-size: 1.1rem;
}

.topbar p {
  margin: 0.2rem 0 0;
  color: #4b5563;
  font-size: 0.9rem;
}

.topbar-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #4b5563;
  font-size: 0.9rem;
}

.bolt {
  width: 0.75rem;
  height: 1rem;
  background: #eab308;
  clip-path: polygon(45% 0, 100% 0, 65% 45%, 95% 45%, 35% 100%, 45% 58%, 10% 58%);
}

.icon-button {
  display: inline-grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  border: 1px solid #e5e7eb;
  border-radius: 0.5rem;
  background: #ffffff;
  color: #374151;
  cursor: pointer;
}

.main-content {
  flex: 1;
  overflow-y: auto;
  padding: 2rem 1.5rem;
}

.main-content > * {
  width: min(100%, 86.4rem);
  margin-right: auto;
  margin-left: auto;
}

.page-heading {
  margin-bottom: 2rem;
}

.page-heading span {
  color: #ca8a04;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
}

.page-heading h2 {
  margin: 0.35rem 0;
  font-size: 1.35rem;
}

.page-heading p,
.settings-panel p {
  margin: 0;
  color: #4b5563;
  font-size: 0.92rem;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(18rem, 0.8fr) minmax(0, 2fr);
  gap: 1.5rem;
  align-items: start;
}

.panel {
  border: 1px solid #e5e7eb;
  border-radius: 0.5rem;
  background: #ffffff;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
}

.settings-panel,
.table-panel,
.panel:not(.chart-panel) {
  padding: 1.5rem;
}

.settings-panel {
  display: grid;
  gap: 1rem;
}

.settings-panel h3,
.panel-header h3 {
  margin: 0;
  font-size: 1.05rem;
}

label {
  display: block;
  margin-bottom: 0.35rem;
  color: #374151;
  font-size: 0.9rem;
  font-weight: 700;
}

input,
select {
  width: 100%;
  border: 1px solid #d1d5db;
  border-radius: 0.5rem;
  background: #ffffff;
  color: #111827;
  padding: 0.65rem 0.75rem;
}

input:focus,
select:focus {
  border-color: #eab308;
  outline: 2px solid rgba(234, 179, 8, 0.25);
}

.date-control {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.5rem;
  align-items: center;
}

.today-button {
  min-width: 4rem;
  white-space: nowrap;
}

.chart-stack {
  display: grid;
  gap: 1.5rem;
}

.chart-panel {
  overflow: hidden;
  padding: 1rem;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.panel-header span {
  color: #6b7280;
  font-size: 0.8rem;
}

.chart {
  min-height: 420px;
  border: 1px solid #f3f4f6;
  border-radius: 0.5rem;
  background: #f9fafb;
}

.tall-chart {
  min-height: 460px;
}

.loading {
  display: grid;
  place-items: center;
  color: #6b7280;
}

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

.button-row {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.5rem;
  border-radius: 0.5rem;
  padding: 0.55rem 0.9rem;
  font-weight: 700;
  cursor: pointer;
}

.primary-button {
  border: 1px solid #ca8a04;
  background: #facc15;
  color: #111827;
}

.secondary-button {
  border: 1px solid #d1d5db;
  background: #ffffff;
  color: #374151;
}

.table-container {
  max-height: 32rem;
  overflow: auto;
  border: 1px dashed #d1d5db;
  border-radius: 0.5rem;
  background: #f9fafb;
  padding: 1rem;
  color: #4b5563;
  font-size: 0.9rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: #ffffff;
}

th,
td {
  border: 1px solid #e5e7eb;
  padding: 0.5rem;
  text-align: left;
  white-space: nowrap;
}

th {
  position: sticky;
  top: 0;
  background: #f9fafb;
  color: #111827;
}

.api-url-box {
  border: 1px dashed #d1d5db;
  border-radius: 0.5rem;
  background: #f9fafb;
  padding: 1rem;
  color: #4b5563;
}

.generated-url {
  display: grid;
  gap: 0.75rem;
}

.generated-url span {
  color: #6b7280;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
}

.generated-url code {
  display: block;
  overflow-x: auto;
  border: 1px solid rgba(202, 138, 4, 0.45);
  border-radius: 0.5rem;
  background: #fefce8;
  padding: 0.75rem;
  color: #854d0e;
}

body[data-page="powermap"] .main-content {
  padding: 0;
}

body[data-page="powermap"] .main-content > * {
  width: 100%;
  max-width: none;
}

.powermap-page {
  position: relative;
  height: calc(100vh - 73px);
  min-height: 36rem;
  background: #eef2f3;
}

.powermap-page > .powermap-canvas {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  background: transparent;
}

.powermap-fallback {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  background: #eef2f3;
  pointer-events: none;
}

.powermap-fallback img {
  position: absolute;
  width: 256px;
  height: 256px;
  user-select: none;
  pointer-events: none;
}

.powermap-legend {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  z-index: 3;
  display: grid;
  gap: 0.45rem;
  min-width: 9rem;
  border: 1px solid rgba(209, 213, 219, 0.9);
  border-radius: 0.5rem;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.12);
  padding: 0.75rem;
  color: #1f2937;
  font-size: 0.8rem;
}

.legend-toggle {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  border: 0;
  background: transparent;
  padding: 0.2rem 0;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.legend-toggle[aria-pressed="false"] {
  opacity: 0.42;
}

.legend-toggle[aria-pressed="false"] .legend-line,
.legend-toggle[aria-pressed="false"] .legend-dot {
  filter: grayscale(1);
}

.legend-toggle:focus-visible {
  outline: 2px solid #2563eb;
  outline-offset: 2px;
}

.legend-line {
  display: inline-block;
  width: 1.75rem;
  height: 0.25rem;
  border-radius: 999px;
}

.legend-dot {
  display: inline-block;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 999px;
}

.legend-high-voltage {
  background: #dc2626;
}

.legend-mid-voltage {
  background: #2563eb;
}

.legend-unknown {
  background: #6b7280;
}

.legend-tower {
  border: 1px solid #111827;
  background: #111827;
}

.legend-plant {
  border: 1px solid #854d0e;
  background: #facc15;
}

.legend-substation {
  border: 1px solid #075985;
  background: #38bdf8;
}

.maplibregl-popup-content {
  border: 1px solid rgba(209, 213, 219, 0.9);
  border-radius: 0.5rem;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.16);
  color: #111827;
  font-size: 0.82rem;
}

@media (max-width: 900px) {
  .app-shell {
    display: block;
  }

  .sidebar,
  .sidebar.collapsed {
    min-height: auto;
    width: 100%;
  }

  .nav-list {
    flex-direction: row;
    overflow-x: auto;
  }

  .topbar-status {
    display: none;
  }

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

  .powermap-page {
    height: 70vh;
  }
}