:root {
  --bg: #f6f4ef;
  --surface: #ffffff;
  --surface-2: #f0ede6;
  --ink: #202225;
  --muted: #666b70;
  --line: #d8d4cb;
  --green: #18735f;
  --red: #ad433d;
  --amber: #b77a23;
  --blue: #4169a8;
  --shadow: 0 16px 42px rgba(31, 34, 38, 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;
  line-height: 1.45;
}

button,
input,
select {
  font: inherit;
}

.app-shell {
  width: min(1440px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 40px;
}

.topbar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0 16px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 8px;
  font-size: clamp(2rem, 4vw, 4.2rem);
  line-height: 1;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 8px;
  font-size: 1.05rem;
  letter-spacing: 0;
}

.source-line,
.panel-heading p,
.section-title p,
.analysis-band p {
  color: var(--muted);
}

.topbar-actions {
  display: flex;
  gap: 10px;
}

.icon-button,
.tab {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  min-height: 42px;
  border-radius: 8px;
  padding: 0 14px;
  cursor: pointer;
}

.icon-button:hover,
.tab:hover {
  border-color: #a9a399;
}

.tabs {
  position: sticky;
  top: 0;
  z-index: 4;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 12px 0;
  background: rgba(246, 244, 239, 0.94);
  backdrop-filter: blur(12px);
}

.tab {
  white-space: nowrap;
}

.tab.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.view {
  display: none;
}

.view.is-active {
  display: block;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(160px, 1fr));
  gap: 12px;
  margin: 14px 0 18px;
}

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

.kpi {
  min-height: 124px;
  padding: 16px;
}

.kpi span {
  display: block;
  min-height: 34px;
  color: var(--muted);
  font-size: 0.84rem;
}

.kpi strong {
  display: block;
  margin-top: 12px;
  font-size: clamp(1.25rem, 2vw, 2rem);
  line-height: 1.08;
}

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

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

.kpi.is-warning strong {
  color: var(--amber);
}

.analysis-band {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.8fr);
  gap: 20px;
  align-items: stretch;
  margin: 18px 0;
  padding: 22px;
  background: #2a2d2f;
  color: #fff;
  border-radius: 8px;
}

.analysis-band p {
  color: #e6e2d9;
  max-width: 860px;
}

.metric-pair {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.metric-pair div {
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
}

.metric-pair span {
  display: block;
  color: #d9d2c5;
  font-size: 0.85rem;
}

.metric-pair strong {
  display: block;
  margin-top: 6px;
  font-size: 1.5rem;
}

.chart-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.panel {
  padding: 18px;
  margin-bottom: 16px;
}

.panel-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.panel-heading p {
  margin-bottom: 0;
  font-size: 0.9rem;
}

.chart-box {
  min-height: 320px;
}

.chart-svg {
  display: block;
  width: 100%;
  min-height: 320px;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.88rem;
}

.legend span::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 6px;
  border-radius: 50%;
  background: var(--series-color);
}

.section-title {
  margin: 24px 0 14px;
}

.section-title h2 {
  font-size: 1.55rem;
}

.assumption-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(240px, 1fr));
  gap: 14px;
}

.assumption-group {
  padding: 16px;
}

.assumption-group h3 {
  margin: 0 0 12px;
  font-size: 1rem;
}

.kv-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
}

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

.kv-row strong {
  text-align: right;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: end;
  margin: 14px 0;
}

.toolbar label {
  display: grid;
  gap: 6px;
  min-width: min(280px, 100%);
  color: var(--muted);
  font-size: 0.85rem;
}

.toolbar input,
.toolbar select {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  background: var(--surface);
  color: var(--ink);
}

.mini-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 12px 0;
}

.mini-summary span {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-2);
  color: #3e4246;
  font-size: 0.86rem;
}

.table-wrap {
  overflow: auto;
  max-height: 70vh;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.table-wrap.compact {
  max-height: 560px;
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.88rem;
}

th,
td {
  min-width: 118px;
  max-width: 300px;
  padding: 9px 10px;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  vertical-align: top;
  overflow-wrap: anywhere;
}

th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: #ebe6dc;
  text-align: left;
  font-weight: 800;
}

tbody tr:hover td {
  background: #fbfaf7;
}

.numeric {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.formula-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.8fr) minmax(0, 1.2fr);
  gap: 16px;
}

.formula-list {
  display: grid;
  gap: 10px;
  max-height: 68vh;
  overflow: auto;
  padding-right: 4px;
}

.formula-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #fbfaf7;
}

.formula-item header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.formula-item code {
  display: block;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  color: #33373a;
}

.simulator-layout {
  display: grid;
  grid-template-columns: minmax(340px, 0.8fr) minmax(0, 1.2fr);
  gap: 16px;
  align-items: start;
}

.simulator-form {
  display: grid;
  gap: 18px;
}

.simulator-form fieldset {
  margin: 0;
  padding: 0;
  border: 0;
}

.simulator-form legend {
  margin-bottom: 10px;
  font-weight: 800;
}

.input-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(140px, 1fr));
  gap: 10px;
}

.form-field {
  display: grid;
  gap: 6px;
}

.form-field span {
  color: var(--muted);
  font-size: 0.84rem;
}

.form-field input {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 10px;
  background: #fbfaf7;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.form-field input:focus {
  outline: 2px solid rgba(183, 122, 35, 0.35);
  border-color: var(--amber);
}

.simulator-kpis {
  grid-template-columns: repeat(3, minmax(150px, 1fr));
  margin-top: 12px;
}

.simulator-band {
  margin-bottom: 0;
}

.simulator-results {
  min-width: 0;
}

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

@media (max-width: 1050px) {
  .result-grid,
  .chart-layout,
  .assumption-grid,
  .formula-layout,
  .simulator-layout,
  .analysis-band {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .app-shell {
    width: min(100% - 20px, 1440px);
    padding-top: 12px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .input-grid,
  .simulator-kpis {
    grid-template-columns: 1fr;
  }

  th,
  td {
    min-width: 104px;
  }
}

@media print {
  .tabs,
  .topbar-actions,
  .toolbar {
    display: none;
  }

  .view {
    display: block;
    break-after: page;
  }

  .table-wrap,
  .formula-list {
    max-height: none;
    overflow: visible;
  }
}