:root {
  color-scheme: light;
  --page: #f7f7f3;
  --paper: #ffffff;
  --ink: #19211c;
  --muted: #5f695f;
  --line: #d8ddd5;
  --green: #1f5f4f;
  --green-deep: #173f34;
  --green-soft: #e5f1ec;
  --sand: #f1efe8;
  --shadow: 0 24px 70px rgba(20, 32, 24, 0.08);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body.marketing-body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(31, 95, 79, 0.08), transparent 30%),
    linear-gradient(180deg, #fbfbf8 0%, var(--page) 100%);
  color: var(--ink);
  font-family: "Avenir Next", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.55;
}

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

p,
h1,
h2,
h3 {
  margin: 0;
}

.marketing-shell {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 20px 0 42px;
}

.marketing-header,
.marketing-footer {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
}

.marketing-header {
  position: sticky;
  top: 0;
  z-index: 10;
  margin-bottom: 28px;
  padding: 16px 18px;
  border: 1px solid rgba(216, 221, 213, 0.85);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(14px);
}

.brand-mark {
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.marketing-nav {
  display: flex;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
}

.marketing-nav a,
.text-link {
  color: var(--muted);
}

.marketing-nav a.active,
.marketing-nav a:hover,
.text-link:hover,
.audience-card a:hover {
  color: var(--green-deep);
}

.marketing-actions,
.hero-actions,
.section-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
}

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

.button-secondary {
  background: var(--paper);
  border-color: var(--line);
  color: var(--ink);
}

.marketing-main {
  display: grid;
  gap: 28px;
}

.hero-grid,
.split-section {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 24px;
  align-items: stretch;
}

.hero-copy,
.hero-report,
.marketing-section,
.page-intro,
.stacked-section,
.marketing-footer {
  padding: 32px;
  border: 1px solid rgba(216, 221, 213, 0.9);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.hero-copy {
  display: grid;
  align-content: center;
  gap: 18px;
  min-height: 520px;
}

.hero-copy h1,
.page-intro h1 {
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  font-size: clamp(3rem, 6vw, 5.2rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
  max-width: 11ch;
}

.hero-text,
.page-intro p,
.section-heading p,
.feature-card p,
.marketing-plan p,
.long-step p,
.audience-card p,
.hero-note,
.marketing-footer p,
.report-table td,
.report-table th {
  color: var(--muted);
}

.hero-text {
  max-width: 54ch;
  font-size: 1.1rem;
}

.hero-note {
  font-size: 0.96rem;
}

.report-card {
  display: grid;
  gap: 20px;
  height: 100%;
  padding: 28px;
  border-radius: calc(var(--radius) - 6px);
  background:
    linear-gradient(180deg, rgba(229, 241, 236, 0.9) 0%, rgba(255, 255, 255, 1) 46%),
    var(--paper);
  border: 1px solid rgba(31, 95, 79, 0.12);
}

.report-title,
.plan-price {
  font-size: 0.86rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--green);
}

.report-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.report-metrics article,
.marketing-plan,
.feature-card,
.audience-card {
  padding: 18px;
  border-radius: 20px;
  border: 1px solid rgba(216, 221, 213, 0.95);
  background: rgba(255, 255, 255, 0.9);
}

.report-metrics span,
.report-metrics small {
  display: block;
}

.report-metrics strong {
  display: block;
  margin: 8px 0 4px;
  font-size: 1.5rem;
  color: var(--ink);
}

.report-metrics small {
  color: var(--green);
  font-weight: 600;
}

.report-table {
  width: 100%;
  border-collapse: collapse;
}

.report-table th,
.report-table td {
  padding: 12px 0;
  border-top: 1px solid rgba(216, 221, 213, 0.9);
  text-align: left;
  vertical-align: top;
}

.section-heading {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.split-heading {
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  align-items: start;
}

.section-heading h2,
.split-copy h2,
.final-call h2,
.feature-card h2,
.marketing-plan h2,
.long-step h2 {
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
}

.section-heading h2 {
  max-width: 13ch;
}

.explorer-points {
  display: grid;
  gap: 10px;
  color: var(--muted);
}

.mini-label {
  margin-bottom: 8px;
  color: var(--green);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.explorer-section,
.flow-section {
  display: grid;
  gap: 20px;
}

.pattern-explorer {
  display: grid;
  gap: 18px;
}

.explorer-tabs,
.flow-rail {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.explorer-tab,
.flow-step {
  border: 1px solid rgba(216, 221, 213, 0.95);
  background: rgba(255, 255, 255, 0.9);
  color: var(--muted);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.explorer-tab {
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.explorer-tab.active,
.explorer-tab:hover,
.flow-step.active,
.flow-step:hover {
  transform: translateY(-1px);
  border-color: rgba(31, 95, 79, 0.38);
  background: var(--green-soft);
  color: var(--green-deep);
}

.explorer-body,
.flow-stage-grid {
  display: grid;
  grid-template-columns: minmax(250px, 0.86fr) minmax(0, 1.14fr);
  gap: 18px;
}

.explorer-sidebar,
.flow-sidebar {
  display: grid;
  gap: 14px;
}

.explorer-sidebar {
  align-content: start;
  padding: 22px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(247, 245, 239, 0.9) 0%, rgba(255, 255, 255, 1) 100%);
  border: 1px solid rgba(216, 221, 213, 0.92);
}

.explorer-sidebar h3,
.flow-card h3,
.artifact-card h3 {
  font-size: 1.35rem;
  line-height: 1.15;
}

.explorer-stat-list {
  display: grid;
  gap: 14px;
  margin: 0;
}

.explorer-stat-list div {
  padding-top: 14px;
  border-top: 1px solid rgba(216, 221, 213, 0.92);
}

.explorer-stat-list dt {
  color: var(--muted);
  font-size: 0.93rem;
}

.explorer-stat-list dd {
  margin: 8px 0 0;
  font-size: 1.08rem;
  font-weight: 600;
}

.explorer-chart-panel,
.flow-canvas {
  display: grid;
  gap: 14px;
  padding: 22px;
  border-radius: 22px;
  border: 1px solid rgba(216, 221, 213, 0.92);
  background: rgba(255, 255, 255, 0.96);
}

.comparison-header,
.signal-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
  flex-wrap: wrap;
}

.comparison-subtitle,
.signal-header span:last-child {
  color: var(--muted);
}

.comparison-legend {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.92rem;
}

.legend-swatch {
  display: inline-block;
  width: 12px;
  height: 12px;
  margin-right: 6px;
  border-radius: 999px;
}

.legend-light {
  background: rgba(31, 95, 79, 0.24);
}

.legend-dark {
  background: var(--green-deep);
}

.mini-chart {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
  align-items: end;
  min-height: 280px;
  padding: 16px 0 4px;
}

.chart-group {
  display: grid;
  gap: 8px;
  justify-items: center;
}

.chart-bars {
  display: flex;
  align-items: end;
  gap: 8px;
  height: 220px;
}

.chart-bar {
  display: block;
  width: 24px;
  min-height: 12px;
  border-radius: 14px 14px 6px 6px;
  transition: height 220ms ease;
}

.chart-bar-light {
  background: rgba(31, 95, 79, 0.24);
}

.chart-bar-dark {
  background: linear-gradient(180deg, #2b7d69 0%, var(--green-deep) 100%);
}

.chart-label {
  color: var(--muted);
  font-size: 0.88rem;
}

.chart-delta {
  color: var(--green);
  font-size: 0.84rem;
  font-weight: 700;
}

.chart-delta.negative {
  color: #8a4036;
}

.explainer-card,
.flow-card,
.signal-strip,
.artifact-card,
.file-stack article,
.alignment-board,
.signal-note {
  padding: 18px;
  border-radius: 18px;
  border: 1px solid rgba(216, 221, 213, 0.95);
  background: rgba(248, 248, 244, 0.9);
}

.flow-step {
  display: grid;
  gap: 6px;
  min-width: 140px;
  padding: 14px 16px;
  border-radius: 18px;
  text-align: left;
  font: inherit;
  cursor: pointer;
}

.flow-step span {
  display: inline-flex;
  width: 32px;
  height: 32px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(31, 95, 79, 0.12);
  color: var(--green-deep);
  font-weight: 700;
}

.flow-step strong {
  font-size: 0.98rem;
}

.flow-card {
  display: grid;
  gap: 12px;
}

.flow-card.active,
.flow-visual.active {
  animation: fadeSlideIn 180ms ease;
}

.flow-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.flow-canvas {
  align-content: center;
  min-height: 340px;
  background: linear-gradient(180deg, rgba(229, 241, 236, 0.36) 0%, rgba(255, 255, 255, 0.95) 100%);
}

.flow-visual {
  display: grid;
  gap: 14px;
}

.file-stack {
  display: grid;
  gap: 12px;
}

.file-stack article {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
}

.file-stack span,
.alignment-board .muted,
.signal-note,
.artifact-card p {
  color: var(--muted);
}

.alignment-board {
  display: grid;
  gap: 14px;
}

.alignment-board div {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.alignment-board span {
  display: inline-flex;
  justify-content: center;
  padding: 12px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid rgba(216, 221, 213, 0.95);
}

.signal-strip {
  display: grid;
  gap: 16px;
  background: #fff;
}

.signal-line {
  display: grid;
  grid-template-columns: repeat(16, minmax(0, 1fr));
  gap: 8px;
  align-items: end;
  min-height: 146px;
}

.signal-dot {
  display: block;
  height: calc(var(--dot-level) * 4px);
  min-height: 18px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(31, 95, 79, 0.22) 0%, rgba(31, 95, 79, 0.78) 100%);
}

.signal-dot-alert {
  background: linear-gradient(180deg, #f0ba7d 0%, #b65c37 100%);
}

.artifact-card {
  display: grid;
  gap: 12px;
  background: #fff;
}

.artifact-bars {
  display: flex;
  gap: 10px;
  align-items: end;
  min-height: 120px;
}

.artifact-bars span {
  display: block;
  width: 34px;
  border-radius: 12px 12px 4px 4px;
  background: linear-gradient(180deg, #d2e6dc 0%, var(--green-deep) 100%);
}

@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(4px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.feature-grid,
.plan-grid,
.audience-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature-card,
.marketing-plan,
.audience-card,
.detail-plan {
  display: grid;
  gap: 12px;
}

.feature-card h3,
.marketing-plan h3,
.audience-card h3,
.long-step h2 {
  font-size: 1.3rem;
  line-height: 1.16;
}

.banded-section {
  background: linear-gradient(180deg, #f7f5ef 0%, #fff 100%);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.steps-grid article,
.long-step {
  display: grid;
  gap: 12px;
  padding: 22px;
  border-radius: 20px;
  border: 1px solid rgba(216, 221, 213, 0.95);
  background: rgba(255, 255, 255, 0.88);
}

.steps-grid span,
.long-step span {
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--green-soft);
  color: var(--green-deep);
  font-weight: 700;
}

.split-copy {
  display: grid;
  align-content: start;
  gap: 12px;
}

.page-intro {
  display: grid;
  gap: 14px;
}

.page-intro h1 {
  max-width: 12ch;
}

.compact-main .page-intro h1 {
  max-width: 14ch;
}

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

.detail-plan {
  min-height: 100%;
}

.plan-points {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.single-column-grid {
  grid-template-columns: 1fr;
}

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

.long-step {
  grid-template-columns: auto 1fr;
  align-items: start;
}

.final-call {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  background: linear-gradient(135deg, #fff 0%, #f3f4ef 100%);
}

.marketing-footer {
  margin-top: 28px;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
}

.footer-links {
  display: grid;
  gap: 8px;
  justify-items: end;
}

@media (max-width: 980px) {
  .marketing-header,
  .marketing-footer,
  .hero-grid,
  .split-section,
  .final-call {
    grid-template-columns: 1fr;
  }

  .split-heading,
  .explorer-body,
  .flow-stage-grid {
    grid-template-columns: 1fr;
  }

  .marketing-header {
    border-radius: 28px;
  }

  .marketing-nav {
    justify-content: start;
  }

  .marketing-actions {
    justify-content: start;
  }

  .feature-grid,
  .plan-grid,
  .steps-grid,
  .audience-cards,
  .large-plan-grid,
  .report-metrics {
    grid-template-columns: 1fr;
  }

  .mini-chart,
  .signal-line {
    overflow-x: auto;
  }

  .chart-bars {
    justify-content: start;
  }

  .flow-step {
    min-width: 0;
    flex: 1 1 160px;
  }

  .alignment-board div {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    min-height: 0;
  }

  .footer-links {
    justify-items: start;
  }
}

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

  .marketing-header,
  .hero-copy,
  .hero-report,
  .marketing-section,
  .page-intro,
  .stacked-section,
  .marketing-footer {
    padding: 22px;
    border-radius: 22px;
  }

  .hero-copy h1,
  .page-intro h1 {
    font-size: clamp(2.6rem, 13vw, 4rem);
  }

  .section-heading h2,
  .split-copy h2,
  .final-call h2,
  .feature-card h2,
  .marketing-plan h2,
  .long-step h2 {
    font-size: clamp(1.8rem, 9vw, 2.6rem);
  }
}