:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-strong: #0f172a;
  --ink: #172033;
  --muted: #667085;
  --line: #d9e0ea;
  --teal: #0f9f9a;
  --amber: #d97706;
  --rose: #dc2626;
  --green: #15803d;
  --blue: #2563eb;
  --shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

body.locked .app-shell {
  display: none;
}

button,
input,
select {
  font: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  background: var(--surface-strong);
  color: #e5e7eb;
  padding: 22px 18px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
}

.brand strong,
.brand span {
  display: block;
}

.brand strong {
  font-size: 0.92rem;
  letter-spacing: 0;
}

.brand span:not(.brand-mark) {
  color: #aab4c4;
  font-size: 0.82rem;
  margin-top: 2px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: #f59e0b;
  color: #111827;
  display: inline-grid;
  place-items: center;
  font-weight: 800;
}

.nav-tabs {
  display: grid;
  gap: 8px;
  margin-top: 28px;
}

.nav-tab {
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: #cbd5e1;
  cursor: pointer;
  padding: 11px 12px;
  text-align: left;
}

.nav-tab:hover,
.nav-tab.active {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

.logout-button {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  bottom: 18px;
  color: #e5e7eb;
  cursor: pointer;
  left: 18px;
  min-height: 38px;
  position: absolute;
  right: 18px;
}

.workspace {
  min-width: 0;
  padding: 28px;
}

.topbar {
  align-items: end;
  display: flex;
  gap: 20px;
  justify-content: space-between;
  margin-bottom: 22px;
}

.eyebrow {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0;
  margin: 0 0 5px;
  text-transform: uppercase;
}

h1,
h2 {
  letter-spacing: 0;
  margin: 0;
}

h1 {
  font-size: clamp(1.9rem, 3vw, 2.7rem);
}

h2 {
  font-size: 1.05rem;
}

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

.meta-strip span,
.status-pill {
  align-items: center;
  background: #e8edf4;
  border-radius: 999px;
  color: #344054;
  display: inline-flex;
  font-size: 0.82rem;
  min-height: 32px;
  padding: 0 12px;
  white-space: nowrap;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.kpi-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(6, minmax(135px, 1fr));
  margin-bottom: 16px;
}

.kpi-card,
.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.kpi-card {
  min-height: 118px;
  padding: 16px;
}

.kpi-card span {
  color: var(--muted);
  display: block;
  font-size: 0.8rem;
  min-height: 36px;
}

.kpi-card strong {
  display: block;
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  line-height: 1.1;
  margin-top: 10px;
}

.kpi-card small {
  color: var(--muted);
  display: block;
  margin-top: 8px;
}

.negative {
  color: var(--rose);
}

.positive {
  color: var(--green);
}

.overview-grid,
.analytics-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.86fr);
  margin-bottom: 16px;
}

.panel {
  padding: 18px;
}

.panel-heading {
  align-items: center;
  display: flex;
  gap: 16px;
  justify-content: space-between;
  margin-bottom: 16px;
}

.decision-values,
.simulator-results {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, 1fr);
}

.decision-values div,
.simulator-results div {
  background: #f8fafc;
  border: 1px solid #e6ecf4;
  border-radius: 8px;
  padding: 12px;
}

.decision-values span,
.simulator-results span {
  color: var(--muted);
  display: block;
  font-size: 0.78rem;
}

.decision-values strong,
.simulator-results strong {
  display: block;
  font-size: 1.26rem;
  margin-top: 7px;
}

.meter {
  background: #e2e8f0;
  border-radius: 999px;
  height: 10px;
  margin-top: 16px;
  overflow: hidden;
}

.meter span {
  background: var(--teal);
  display: block;
  height: 100%;
  width: 0;
}

.simulator-controls {
  display: grid;
  gap: 12px;
}

.simulator-controls label {
  display: grid;
  gap: 7px;
}

.simulator-controls label span {
  color: var(--muted);
  display: flex;
  font-size: 0.84rem;
  justify-content: space-between;
}

input[type="range"] {
  accent-color: var(--teal);
  width: 100%;
}

.ghost-button {
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  cursor: pointer;
  min-height: 36px;
  padding: 0 12px;
}

.primary-button {
  background: var(--surface-strong);
  border: 0;
  border-radius: 8px;
  color: #ffffff;
  cursor: pointer;
  min-height: 40px;
  padding: 0 16px;
}

.primary-button:hover {
  background: #1e293b;
}

.auth-screen {
  align-items: center;
  display: grid;
  min-height: 100vh;
  padding: 24px;
  place-items: center;
}

.auth-screen[hidden] {
  display: none;
}

.auth-form {
  display: grid;
  gap: 14px;
  max-width: 420px;
  width: min(420px, 100%);
}

.auth-form label,
.project-form label {
  display: grid;
  gap: 6px;
}

.auth-form label span,
.project-form label span {
  color: var(--muted);
  font-size: 0.84rem;
}

.auth-form input,
.project-form input,
.project-form select {
  border: 1px solid var(--line);
  border-radius: 8px;
  min-height: 40px;
  padding: 0 10px;
  width: 100%;
}

.form-error,
.install-error {
  color: var(--rose);
  margin: 0;
}

.form-status,
.auth-note,
.install-message {
  color: var(--muted);
  margin: 0;
}

.install-page {
  align-items: center;
  display: grid;
  min-height: 100vh;
  padding: 24px;
  place-items: center;
}

.install-panel {
  max-width: 520px;
  width: min(520px, 100%);
}

.project-form-panel {
  margin-bottom: 16px;
}

.project-form {
  align-items: end;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(4, minmax(160px, 1fr));
}

.chart {
  min-height: 280px;
  width: 100%;
}

.chart.compact {
  min-height: 238px;
}

.chart svg {
  display: block;
  height: auto;
  width: 100%;
}

.axis-label,
.chart-label {
  fill: #667085;
  font-size: 12px;
}

.objective {
  align-items: center;
  display: flex;
  gap: 14px;
  margin-bottom: 8px;
}

.objective strong {
  color: var(--blue);
  font-size: 2rem;
}

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

.bar-list,
.scenario-list {
  display: grid;
  gap: 10px;
}

.bar-item,
.scenario-item {
  display: grid;
  gap: 8px;
}

.bar-row,
.scenario-row {
  align-items: center;
  display: flex;
  gap: 12px;
  justify-content: space-between;
}

.bar-row span,
.scenario-row span {
  color: var(--muted);
  font-size: 0.86rem;
}

.bar-track {
  background: #e8edf4;
  border-radius: 999px;
  height: 9px;
  overflow: hidden;
}

.bar-track span {
  background: var(--amber);
  display: block;
  height: 100%;
}

.scenario-item {
  border-bottom: 1px solid #eef2f7;
  padding-bottom: 10px;
}

.scenario-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.table-heading {
  align-items: flex-start;
}

.table-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.table-actions input,
.table-actions select {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  min-height: 38px;
  padding: 0 10px;
}

.table-meta {
  color: var(--muted);
  font-size: 0.88rem;
  margin-bottom: 10px;
}

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

table {
  border-collapse: collapse;
  min-width: 860px;
  width: 100%;
}

th,
td {
  border-bottom: 1px solid #e7edf5;
  padding: 11px 10px;
  text-align: left;
  vertical-align: top;
}

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

td {
  font-size: 0.9rem;
}

.num {
  text-align: right;
}

.tag {
  background: #eef2ff;
  border-radius: 999px;
  color: #3730a3;
  display: inline-flex;
  font-size: 0.78rem;
  padding: 4px 8px;
}

.manual-tag {
  background: #ecfdf5;
  color: #166534;
  margin-left: 5px;
}

@media (max-width: 1120px) {
  .kpi-grid {
    grid-template-columns: repeat(3, minmax(160px, 1fr));
  }

  .overview-grid,
  .analytics-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

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

  .nav-tabs {
    grid-template-columns: repeat(2, 1fr);
  }

  .logout-button {
    margin-top: 14px;
    position: static;
    width: 100%;
  }

  .workspace {
    padding: 18px;
  }

  .topbar,
  .panel-heading,
  .table-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .meta-strip,
  .table-actions {
    justify-content: flex-start;
    width: 100%;
  }

  .table-actions input,
  .table-actions select {
    flex: 1 1 160px;
  }

  .kpi-grid,
  .decision-values,
  .simulator-results,
  .project-form {
    grid-template-columns: 1fr;
  }
}