:root {
  --bg: #f6f9f6;
  --bg-band: #eef6f0;
  --paper: #ffffff;
  --paper-soft: #fbf7ef;
  --ink: #21302d;
  --muted: #65726d;
  --line: #dbe5df;
  --line-strong: #c8d7cf;
  --relief: #6aa878;
  --relief-soft: #e8f5ec;
  --pressure: #d9786f;
  --pressure-soft: #fff0ed;
  --warning: #d7a84f;
  --warning-soft: #fff7dd;
  --info: #6f98c8;
  --info-soft: #eef5ff;
  --violet: #9a8ac0;
  --violet-soft: #f2effa;
  --shadow: 0 18px 42px rgba(44, 64, 58, 0.08);
  --radius: 8px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Avenir Next", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background:
    linear-gradient(180deg, var(--bg-band) 0 420px, var(--bg) 420px 100%),
    var(--bg);
}

a {
  color: inherit;
}

.page-shell {
  width: min(calc(100% - 24px), var(--max-width));
  margin: 0 auto;
  padding: 20px 0 44px;
}

.hero {
  display: grid;
  gap: 22px;
  align-items: stretch;
  min-height: 520px;
  padding: 24px 0 30px;
  border-bottom: 1px solid var(--line);
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.eyebrow,
.section-kicker,
.chart-kicker,
.hero-meta-label {
  margin: 0;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.chart-card h3 {
  margin: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  font-weight: 800;
}

.hero h1 {
  max-width: 10ch;
  margin-top: 12px;
  font-size: 2.85rem;
  line-height: 0.98;
}

.hero-text {
  max-width: 720px;
  margin: 18px 0 0;
  color: #40504b;
  font-size: 1.06rem;
  line-height: 1.75;
}

.hero-meta {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.hero-meta > div {
  padding-left: 14px;
  border-left: 4px solid var(--relief);
}

.hero-meta > div:nth-child(2) {
  border-color: var(--pressure);
}

.hero-meta strong {
  display: block;
  margin-top: 6px;
  font-size: 1rem;
  line-height: 1.45;
}

.hero-visual {
  display: grid;
  gap: 14px;
  align-content: end;
}

.pressure-scale,
.hero-insight-grid,
.chart-controls,
.chart-card,
.summary-card,
.narrative-card {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.pressure-scale {
  display: grid;
  gap: 8px;
  padding: 12px;
}

.pressure-scale-row {
  display: grid;
  gap: 6px;
  padding: 14px;
  border-radius: var(--radius);
  border-left: 8px solid var(--line-strong);
}

.pressure-scale-row span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.pressure-scale-row strong {
  font-size: 0.98rem;
  line-height: 1.35;
}

.pressure-scale-row.relief {
  border-color: var(--relief);
  background: var(--relief-soft);
}

.pressure-scale-row.warning {
  border-color: var(--warning);
  background: var(--warning-soft);
}

.pressure-scale-row.pressure {
  border-color: var(--pressure);
  background: var(--pressure-soft);
}

.hero-insight-grid {
  display: grid;
  gap: 10px;
  padding: 12px;
}

.hero-insight {
  display: grid;
  gap: 7px;
  min-height: 136px;
  padding: 14px;
  border-radius: var(--radius);
  background: var(--info-soft);
  border: 1px solid #d7e5f8;
}

.hero-insight.relief {
  background: var(--relief-soft);
  border-color: #cbe7d2;
}

.hero-insight.warning {
  background: var(--warning-soft);
  border-color: #f0dda6;
}

.hero-insight.pressure {
  background: var(--pressure-soft);
  border-color: #f0c9c4;
}

.hero-insight span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.hero-insight strong {
  font-size: 1.5rem;
  line-height: 1.05;
}

.hero-insight p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
  font-size: 0.92rem;
}

.layout {
  display: grid;
  gap: 38px;
  margin-top: 34px;
}

.summary-section,
.charts-section {
  display: grid;
  gap: 18px;
}

.section-heading {
  display: grid;
  gap: 16px;
}

.section-heading h2 {
  margin-top: 8px;
  max-width: 820px;
  font-size: 2rem;
  line-height: 1.12;
}

.status-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 8px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.2;
}

.status-badge::before {
  content: "";
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--relief);
}

.status-badge.warning::before {
  background: var(--warning);
}

.summary-grid {
  display: grid;
  gap: 12px;
}

.summary-card {
  display: grid;
  gap: 12px;
  min-height: 255px;
  padding: 18px;
}

.summary-card h3 {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 800;
}

.summary-value {
  font-size: 2rem;
  line-height: 1;
  font-weight: 850;
}

.summary-date {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.summary-explain,
.summary-example {
  margin: 0;
  color: #4a5a55;
  line-height: 1.55;
  font-size: 0.94rem;
}

.summary-example {
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.summary-delta {
  display: inline-flex;
  align-self: end;
  width: fit-content;
  min-height: 34px;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: var(--radius);
  font-size: 0.84rem;
  font-weight: 800;
  line-height: 1.25;
}

.summary-delta.positive {
  color: #2f7041;
  background: var(--relief-soft);
}

.summary-delta.negative {
  color: #a9473f;
  background: var(--pressure-soft);
}

.summary-delta.neutral {
  color: #735d25;
  background: var(--warning-soft);
}

.narrative-card {
  display: grid;
  gap: 12px;
  padding: 18px;
  background: var(--paper);
}

.narrative-card p {
  margin: 0;
  color: #44534f;
  line-height: 1.7;
}

.narrative-card strong {
  color: var(--ink);
}

.chart-controls {
  display: grid;
  gap: 16px;
  padding: 18px;
}

.controls-copy,
.controls-help {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

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

.control-field {
  display: grid;
  gap: 8px;
  min-width: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.control-field span {
  color: var(--ink);
  font-weight: 800;
}

.control-field select,
.control-field input {
  width: 100%;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  font: inherit;
}

.control-field select:disabled,
.control-field input:disabled {
  background: #eef2ef;
  color: #8b9792;
}

.charts-stack {
  display: grid;
  gap: 30px;
}

.topic-block {
  display: grid;
  gap: 18px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.topic-block:first-child {
  padding-top: 0;
  border-top: 0;
}

.topic-heading {
  display: grid;
  gap: 12px;
}

.topic-heading h3 {
  margin: 8px 0 0;
  max-width: 760px;
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  font-size: 1.85rem;
  line-height: 1.15;
}

.topic-heading > p {
  margin: 0;
  max-width: 760px;
  color: var(--muted);
  line-height: 1.65;
}

.topic-grid {
  display: grid;
  gap: 18px;
}

.income-simulator {
  display: grid;
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--line);
  border-left: 8px solid var(--relief);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, var(--relief-soft), rgba(255, 255, 255, 0.94) 42%),
    var(--paper);
  box-shadow: var(--shadow);
}

.simulator-intro {
  display: grid;
  gap: 8px;
}

.simulator-intro h4 {
  margin: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  font-size: 1.45rem;
  line-height: 1.18;
}

.simulator-intro p,
.simulator-note {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

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

.simulator-results {
  display: grid;
  gap: 10px;
}

.simulator-result {
  display: grid;
  gap: 8px;
  min-height: 150px;
  padding: 14px;
  border: 1px solid var(--line);
  border-left: 6px solid var(--warning);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
}

.simulator-result.relief {
  border-left-color: var(--relief);
  background: var(--relief-soft);
}

.simulator-result.warning {
  border-left-color: var(--warning);
  background: var(--warning-soft);
}

.simulator-result.pressure {
  border-left-color: var(--pressure);
  background: var(--pressure-soft);
}

.simulator-result span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.simulator-result strong {
  font-size: 1.35rem;
  line-height: 1.1;
}

.simulator-result p {
  margin: 0;
  color: #4a5a55;
  line-height: 1.5;
  font-size: 0.93rem;
}

.chart-card {
  display: grid;
  gap: 14px;
  padding: 18px;
}

.chart-header {
  display: grid;
  gap: 12px;
}

.chart-header h3 {
  margin-top: 6px;
  font-size: 1.48rem;
  line-height: 1.18;
}

.chart-frequency {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 34px;
  padding: 7px 10px;
  border-radius: var(--radius);
  background: var(--paper-soft);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 800;
}

.chart-description {
  margin: 0;
  color: #465651;
  line-height: 1.68;
}

.chart-lesson {
  display: grid;
  gap: 10px;
  padding: 4px 0 4px 14px;
  border-left: 4px solid var(--info);
}

.chart-lesson p {
  margin: 0;
  color: var(--muted);
  line-height: 1.62;
}

.chart-lesson strong {
  color: var(--ink);
}

.comparison-panel {
  margin: 0;
}

.comparison-summary {
  display: grid;
  gap: 10px;
  padding: 12px;
  border-radius: var(--radius);
  background: var(--paper-soft);
  border: 1px solid var(--line);
}

.comparison-values {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.comparison-value {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 34px;
  padding: 7px 10px;
  border-radius: var(--radius);
  background: #edf2ef;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 800;
}

.comparison-value strong {
  color: var(--ink);
}

.comparison-value.higher {
  background: var(--pressure-soft);
  color: #a9473f;
}

.comparison-value.lower {
  background: var(--relief-soft);
  color: #2f7041;
}

.comparison-note {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.92rem;
}

.comparison-note.higher {
  color: #a9473f;
}

.comparison-note.lower {
  color: #2f7041;
}

.chart-target {
  position: relative;
  min-height: 320px;
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, #ffffff 0%, #f8fbf8 100%);
  border: 1px solid var(--line);
  overflow: hidden;
}

.chart-target-compact {
  min-height: 260px;
}

.chart-source {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.55;
}

.chart-source a {
  color: #2f7041;
  text-decoration: none;
  font-weight: 700;
}

.chart-source a:hover {
  text-decoration: underline;
}

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

.chart-tooltip {
  position: absolute;
  max-width: min(300px, calc(100% - 28px));
  padding: 10px 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 12px 24px rgba(44, 64, 58, 0.16);
  color: var(--ink);
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 10;
}

.chart-tooltip.visible {
  opacity: 1;
}

.chart-tooltip strong {
  display: block;
  margin-bottom: 6px;
  font-size: 0.86rem;
}

.chart-empty {
  display: grid;
  min-height: inherit;
  place-items: center;
  padding: 24px;
  color: var(--muted);
  text-align: center;
}

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

@media (min-width: 700px) {
  .page-shell {
    width: min(calc(100% - 36px), var(--max-width));
    padding-top: 28px;
  }

  .hero {
    min-height: 560px;
  }

  .hero h1 {
    font-size: 4rem;
  }

  .hero-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-width: 720px;
  }

  .hero-insight-grid,
  .summary-grid,
  .controls-grid,
  .simulator-results {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .simulator-form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .chart-controls,
  .chart-card,
  .summary-card,
  .narrative-card,
  .income-simulator {
    padding: 22px;
  }

  .chart-header {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
    gap: 42px;
    padding-top: 34px;
  }

  .hero h1 {
    font-size: 4.8rem;
  }

  .section-heading {
    grid-template-columns: minmax(0, 1fr) minmax(280px, auto);
    align-items: end;
  }

  .status-badges {
    justify-content: flex-end;
  }

  .summary-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .controls-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .topic-heading {
    grid-template-columns: minmax(0, 0.95fr) minmax(300px, 0.75fr);
    align-items: end;
  }

  .topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .chart-card-wide {
    grid-column: 1 / -1;
  }

  .simulator-form {
    grid-template-columns: 1.4fr 0.7fr 0.7fr 1.2fr 0.9fr;
  }
}