:root {
  color-scheme: light;
  --ink: #16211f;
  --muted: #5d6b67;
  --line: #d9e3df;
  --paper: #fbfaf6;
  --surface: #ffffff;
  --teal: #14796b;
  --teal-dark: #0e5f55;
  --coral: #e56f4f;
  --gold: #f0c45f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

a {
  color: inherit;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid var(--line);
  background: rgba(251, 250, 246, 0.96);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 850;
  text-decoration: none;
}

.brand-logo {
  display: block;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border-radius: 8px;
  object-fit: cover;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  overflow: hidden;
  border-radius: 8px;
  background: transparent url("/assets/PayNudge-app-icon-180.png") center/cover no-repeat;
  color: transparent;
  font-size: 0;
  line-height: 0;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}

.nav-links a {
  text-decoration: none;
}

.hero,
.section,
.footer {
  padding: clamp(38px, 7vw, 82px) clamp(18px, 4vw, 56px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(280px, 0.94fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
}

.hero-copy,
.section-inner,
.footer-inner {
  max-width: 1120px;
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 820px;
  margin-bottom: 18px;
  font-size: clamp(38px, 6vw, 70px);
  line-height: 1;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 19px;
}

.lede,
.answer-block {
  max-width: 760px;
  color: var(--muted);
  font-size: 19px;
}

.answer-block {
  padding: 18px;
  border-left: 5px solid var(--teal);
  background: #ffffff;
}

.hero-actions,
.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 16px;
}

.button {
  min-height: 44px;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 11px 16px;
  font: inherit;
  font-weight: 850;
  text-align: center;
  text-decoration: none;
}

.button.primary {
  background: var(--teal);
  color: #ffffff;
}

.button.secondary {
  background: #ffffff;
  border-color: var(--line);
}

.proof-note,
.safety-note,
.footer {
  color: var(--muted);
}

.visual-panel,
.card,
.template-block,
.generator,
.output-panel,
.safety-box {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.visual-panel {
  padding: 24px;
}

.nudge-preview {
  display: grid;
  gap: 12px;
}

.preview-line {
  padding: 14px;
  border-radius: 8px;
  background: #edf6f2;
}

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

.two-col {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.card,
.generator,
.output-panel,
.safety-box {
  padding: 18px;
}

.generator-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.9fr) minmax(280px, 1.1fr);
  gap: 18px;
}

.generator {
  display: grid;
  gap: 14px;
}

.generator label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 750;
}

.generator input,
.generator select {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 10px;
  color: var(--ink);
  font: inherit;
  background: #ffffff;
}

.output-panel pre {
  min-height: 190px;
  margin: 0;
  white-space: pre-wrap;
  color: var(--ink);
  font: 15px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.helper-text {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.template-block {
  white-space: pre-wrap;
  padding: 18px;
  margin: 10px 0 18px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14px;
  background: #ffffff;
}

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

.comparison-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
}

.comparison-table th,
.comparison-table td {
  padding: 13px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.comparison-table th {
  background: #edf6f2;
}

.fact-list {
  display: grid;
  gap: 12px;
  padding: 0;
  list-style: none;
}

.fact-list li {
  padding: 14px;
  border: 1px solid var(--line);
  background: #ffffff;
}

.section.alt {
  background: #ffffff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.list {
  margin: 0;
  padding-left: 20px;
}

.list li {
  margin-bottom: 8px;
}

.footer {
  border-top: 1px solid var(--line);
  font-size: 14px;
}

@media (max-width: 800px) {
  .topbar,
  .hero {
    display: block;
  }

  .nav-links {
    margin-top: 14px;
  }

  .visual-panel {
    margin-top: 26px;
  }

  .grid,
  .two-col,
  .generator-layout {
    grid-template-columns: 1fr;
  }
}