:root {
  color-scheme: light;
  --bg: #f4f6f2;
  --panel: #ffffff;
  --panel-soft: #eef3ec;
  --ink: #172019;
  --muted: #687469;
  --line: #d9e1d7;
  --green: #2f7d32;
  --green-dark: #174421;
  --yellow: #f2b705;
  --red: #b42318;
  --blue: #246b8f;
  --shadow: 0 16px 42px rgba(23, 32, 25, 0.1);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}

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

select[multiple] {
  min-height: 96px;
}

button {
  cursor: pointer;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto auto;
  gap: 16px;
  align-items: center;
  padding: 10px clamp(16px, 4vw, 38px);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
}

.brand {
  display: flex;
  align-items: center;
  min-width: 0;
  width: fit-content;
  text-decoration: none;
}

.brand-logo {
  display: block;
  width: clamp(190px, 22vw, 320px);
  height: auto;
  max-height: 58px;
  object-fit: contain;
  object-position: left center;
}

.main-nav {
  display: flex;
  gap: 6px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
}

.main-nav button,
.segment {
  position: relative;
  min-height: 36px;
  border: 0;
  border-radius: 6px;
  padding: 0 14px;
  background: transparent;
  color: var(--muted);
}

.main-nav button.active,
.segment.active {
  background: var(--panel);
  color: var(--green-dark);
  box-shadow: 0 1px 4px rgba(23, 32, 25, 0.1);
}

.nav-badge {
  display: inline-grid;
  place-items: center;
  min-width: 18px;
  height: 18px;
  margin-left: 6px;
  border-radius: 999px;
  background: var(--red);
  color: #fff;
  font-size: 0.72rem;
  line-height: 1;
}

.session-box {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.user-pill {
  display: grid;
  gap: 1px;
  text-align: right;
}

.user-pill strong {
  font-size: 0.92rem;
}

.user-pill span {
  color: var(--muted);
  font-size: 0.78rem;
}

.page-shell {
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: clamp(16px, 3vw, 34px);
}

.auth-panel {
  min-height: calc(100vh - 96px);
  display: grid;
  grid-template-columns: minmax(260px, 0.9fr) minmax(280px, 420px);
  gap: clamp(22px, 5vw, 72px);
  align-items: center;
}

.auth-copy {
  display: grid;
  place-items: center;
}

.auth-logo {
  display: block;
  width: min(100%, 620px);
  height: auto;
  object-fit: contain;
}

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

.auth-form-wrap,
.metric,
.control-panel,
.table-panel,
.empty-state,
.facility-card,
.log-list,
.chart-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.auth-form-wrap {
  padding: 18px;
  box-shadow: var(--shadow);
}

.segmented {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  margin-bottom: 16px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
}

.auth-form {
  display: grid;
  gap: 14px;
}

.check-row {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--ink);
}

.check-row input {
  width: 18px;
  min-height: 18px;
  accent-color: var(--green);
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.88rem;
}

input,
select,
textarea {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 9px 11px;
  background: #fff;
  color: var(--ink);
}

textarea {
  min-height: 84px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: 3px solid rgba(47, 125, 50, 0.18);
  border-color: var(--green);
}

.primary-btn,
.secondary-btn,
.danger-btn,
.icon-btn,
.text-btn {
  min-height: 40px;
  border-radius: 6px;
  border: 1px solid transparent;
  padding: 0 14px;
  font-weight: 650;
}

.primary-btn {
  background: var(--green);
  color: #fff;
}

.secondary-btn {
  border-color: var(--line);
  background: var(--panel);
  color: var(--green-dark);
}

.danger-btn {
  background: #fff5f2;
  border-color: #f2b8ad;
  color: var(--red);
}

.icon-btn {
  min-width: 40px;
  padding: 0;
  border-color: var(--line);
  background: var(--panel);
  color: var(--green-dark);
}

.text-btn {
  background: transparent;
  color: var(--green-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

button:disabled,
input:disabled,
select:disabled,
textarea:disabled {
  cursor: not-allowed;
  opacity: 0.68;
}

button.is-busy {
  box-shadow: 0 0 0 3px rgba(47, 125, 50, 0.16);
}

.toast {
  position: fixed;
  right: clamp(14px, 3vw, 28px);
  bottom: clamp(14px, 3vw, 28px);
  z-index: 50;
  max-width: min(420px, calc(100vw - 28px));
  padding: 12px 16px;
  border: 1px solid rgba(47, 125, 50, 0.28);
  border-radius: 8px;
  background: #eff8ef;
  color: var(--green-dark);
  box-shadow: var(--shadow);
  font-weight: 650;
}

.toast.error {
  border-color: #f2b8ad;
  background: #fff5f2;
  color: var(--red);
}

.form-message {
  min-height: 22px;
  margin: 12px 0 0;
  color: var(--red);
  font-size: 0.9rem;
}

.form-message.ok {
  color: var(--green-dark);
}

.app-panel {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.sidebar {
  position: sticky;
  top: 82px;
  display: grid;
  gap: 12px;
}

.sidebar-head,
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.sidebar-head {
  padding: 0 2px;
  color: var(--muted);
  font-weight: 700;
}

.facility-list {
  display: grid;
  gap: 10px;
}

.facility-card {
  display: grid;
  gap: 8px;
  width: 100%;
  padding: 13px;
  text-align: left;
}

.facility-card.active {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(47, 125, 50, 0.14);
}

.facility-card strong {
  display: block;
  line-height: 1.2;
}

.facility-meta,
.status-row,
.small-muted {
  color: var(--muted);
  font-size: 0.84rem;
}

.status-dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  margin-right: 6px;
  border-radius: 999px;
  background: var(--green);
}

.status-dot.paused {
  background: var(--yellow);
}

.workspace {
  display: grid;
  gap: 18px;
  min-width: 0;
}

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

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

.chart-toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.segmented.compact {
  width: fit-content;
  margin: 0;
}

.pv-flow-panel {
  display: grid;
  grid-template-columns: minmax(120px, 1fr) 44px minmax(120px, 1fr) 44px minmax(120px, 1fr);
  gap: 10px;
  align-items: center;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, #fff, #f8fbf6);
}

.pv-node {
  display: grid;
  gap: 4px;
  min-height: 92px;
  place-items: center;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  text-align: center;
}

.pv-node span,
.pv-node small {
  color: var(--muted);
  font-size: 0.82rem;
}

.pv-node strong {
  font-size: clamp(1.2rem, 2.4vw, 1.8rem);
}

.pv-battery {
  grid-column: 3;
}

.flow-line {
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--green), var(--yellow));
}

.tile-small {
  grid-column: span 3;
}

.tile-normal {
  grid-column: span 4;
}

.tile-wide {
  grid-column: span 6;
}

.tile-full {
  grid-column: 1 / -1;
}

.metric {
  padding: 15px;
  min-width: 0;
}

.metric span {
  color: var(--muted);
  font-size: 0.82rem;
}

.metric strong {
  display: block;
  margin-top: 6px;
  font-size: clamp(1.3rem, 3vw, 2rem);
}

.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: 18px;
  align-items: start;
}

.chart-panel,
.control-panel,
.table-panel,
.log-list {
  padding: 16px;
}

.chart-wrap {
  height: 320px;
  min-height: 220px;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.control-form {
  display: grid;
  gap: 14px;
}

.control-item {
  min-width: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
}

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 42px;
}

.switch {
  position: relative;
  width: 48px;
  height: 28px;
  flex: 0 0 auto;
}

.switch input {
  position: absolute;
  opacity: 0;
}

.switch span {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: #ccd7cc;
  transition: background 0.18s ease;
}

.switch span::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  left: 3px;
  top: 3px;
  border-radius: 999px;
  background: #fff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
  transition: transform 0.18s ease;
}

.switch input:checked + span {
  background: var(--green);
}

.switch input:checked + span::after {
  transform: translateX(20px);
}

.range-value {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

input[type="range"] {
  padding: 0;
  accent-color: var(--green);
}

.table-panel {
  overflow-x: auto;
}

.admin-panel {
  overflow: visible;
}

.data-table {
  width: 100%;
  min-width: 1040px;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  border-bottom: 1px solid var(--line);
  padding: 10px 8px;
  text-align: left;
  vertical-align: middle;
}

.data-table th {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
}

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

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  align-items: end;
  margin-bottom: 18px;
}

.facility-admin-list,
.field-admin-list {
  display: grid;
  gap: 12px;
}

.facility-admin-card,
.field-admin-card {
  display: grid;
  gap: 12px;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.facility-admin-card.active {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(47, 125, 50, 0.12);
}

.admin-card-title,
.admin-card-actions,
.field-flags {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.admin-card-title {
  justify-content: space-between;
}

.admin-card-title code {
  max-width: 100%;
  overflow-wrap: anywhere;
  color: var(--muted);
}

.admin-card-actions {
  justify-content: flex-end;
}

.admin-card-grid,
.field-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(145px, 1fr));
  gap: 10px;
}

.field-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  align-items: end;
  margin: 14px 0 18px;
}

.field-table {
  min-width: 1220px;
}

.range-inputs {
  display: grid;
  grid-template-columns: repeat(3, minmax(70px, 1fr));
  gap: 6px;
}

.check-card,
.compact-check {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  color: var(--ink);
}

.check-card {
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
}

.check-card input,
.compact-check input {
  width: 18px;
  min-height: 18px;
  accent-color: var(--green);
}

.log-list {
  display: grid;
  gap: 10px;
}

.log-entry {
  display: grid;
  grid-template-columns: 170px 1fr auto;
  gap: 12px;
  align-items: start;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.log-entry:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.notification-entry.unread {
  border-left: 4px solid var(--green);
  padding-left: 10px;
}

.approval-list {
  display: grid;
  gap: 10px;
}

.approval-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
}

.empty-state {
  display: grid;
  gap: 6px;
  padding: 24px;
  color: var(--muted);
}

.empty-state strong {
  color: var(--ink);
}

.notice {
  border-left: 4px solid var(--yellow);
  background: #fffaf0;
  padding: 12px 14px;
  border-radius: 6px;
  color: #5b4510;
}

@media (max-width: 980px) {
  .topbar {
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .session-box {
    justify-content: space-between;
  }

  .auth-panel,
  .app-panel,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .auth-logo {
    width: min(100%, 460px);
  }

  .sidebar {
    position: static;
  }

  .facility-list {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  }

  .tile-small,
  .tile-normal {
    grid-column: span 6;
  }

  .tile-wide,
  .tile-full {
    grid-column: 1 / -1;
  }

  .form-grid {
    grid-template-columns: repeat(2, minmax(160px, 1fr));
  }
}

@media (max-width: 620px) {
  .page-shell {
    padding: 14px;
  }

  .brand-logo {
    width: min(100%, 260px);
    max-height: 52px;
  }

  .dashboard-grid,
  .visual-grid,
  .control-grid,
  .analysis-grid,
  .pv-flow-panel {
    grid-template-columns: 1fr;
  }

  .pv-battery {
    grid-column: auto;
  }

  .flow-line {
    width: 3px;
    height: 28px;
    justify-self: center;
  }

  .tile-small,
  .tile-normal,
  .tile-wide,
  .tile-full {
    grid-column: 1 / -1;
  }

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

  .chart-wrap {
    height: 250px;
  }

  .log-entry {
    grid-template-columns: 1fr;
  }

  .main-nav {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(92px, 1fr));
    overflow: visible;
  }

  .main-nav button {
    min-width: 0;
    padding: 0 7px;
    font-size: 0.9rem;
  }
}