/* Namedatahub — Medium-inspired editorial design tokens */
:root {
  --md-accent: #1A8917;
  --md-accent-hover: #156D12;
  --md-accent-soft: #E8F3E8;
  --md-ink: #191919;
  --md-text: #242424;
  --md-muted: #6B6B6B;
  --md-muted-soft: #757575;
  --md-canvas: #F7F4ED;
  --md-canvas-alt: #FFFFFF;
  --md-surface: #FFFFFF;
  --md-surface-warm: #F2EFE6;
  --md-border: #E6E6E6;
  --md-border-strong: #CFCFCF;
  --md-hero-green: #34AC45;
  --md-hero-moss: #48704B;
  --md-on-dark: #FFFFFF;
  --md-serif: Georgia, Cambria, "Times New Roman", serif;
  --md-sans: "Helvetica Neue", Arial, sans-serif;
  --md-radius-pill: 9999px;
  --md-radius-lg: 14px;
  --md-section: 84px;
  --md-hero: 112px;
  --md-max-width: 1192px;
  --md-content-width: 680px;
  --transition: 160ms ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--md-sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--md-text);
  background-color: var(--md-canvas);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--md-accent);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--md-ink);
  color: var(--md-on-dark);
  border-radius: var(--md-radius-pill);
  font-size: 14px;
}

.skip-link:focus {
  top: 16px;
}

.container {
  width: 100%;
  max-width: var(--md-max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Top navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 75px;
  background-color: var(--md-canvas);
  border-bottom: 1px solid var(--md-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 75px;
}

.site-wordmark {
  font-family: var(--md-serif);
  font-size: 22px;
  font-weight: 400;
  color: var(--md-ink);
  letter-spacing: -0.02em;
}

.site-wordmark span {
  color: var(--md-muted);
  font-family: var(--md-sans);
  font-size: 13px;
  margin-left: 8px;
  letter-spacing: 0;
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: 28px;
}

.nav-desktop a {
  font-size: 14px;
  color: var(--md-text);
  transition: color var(--transition);
}

.nav-desktop a:hover {
  color: var(--md-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--md-ink);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-mobile {
  display: none;
  position: absolute;
  top: 75px;
  left: 0;
  right: 0;
  background: var(--md-canvas);
  border-bottom: 1px solid var(--md-border);
  padding: 16px 24px 24px;
}

.nav-mobile.is-open {
  display: block;
}

.nav-mobile a {
  display: block;
  padding: 12px 0;
  font-size: 16px;
  color: var(--md-text);
  border-bottom: 1px solid var(--md-border);
}

.nav-mobile a:last-child {
  border-bottom: none;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--md-sans);
  font-size: 14px;
  font-weight: 400;
  line-height: 1;
  border-radius: var(--md-radius-pill);
  border: none;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--md-ink);
  color: var(--md-on-dark);
  padding: 11px 20px;
  height: 40px;
}

.btn-primary:hover {
  background-color: #333333;
}

.btn-accent {
  background-color: var(--md-accent);
  color: var(--md-on-dark);
  padding: 11px 20px;
  height: 40px;
}

.btn-accent:hover {
  background-color: var(--md-accent-hover);
}

.btn-secondary {
  background-color: var(--md-surface);
  color: var(--md-ink);
  padding: 10px 18px;
  height: 38px;
  border: 1px solid var(--md-border-strong);
}

.btn-secondary:hover {
  background-color: var(--md-surface-warm);
}

.btn-lg {
  padding: 13px 28px;
  height: 48px;
  font-size: 15px;
}

/* Hero */
.hero {
  padding: var(--md-hero) 0 var(--md-section);
  border-bottom: 1px solid var(--md-border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}

.hero-content {
  max-width: 620px;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 13px;
  color: var(--md-muted);
  margin-bottom: 20px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.hero-title {
  font-family: var(--md-serif);
  font-size: clamp(48px, 10vw, 106px);
  font-weight: 400;
  line-height: 0.92;
  letter-spacing: -0.055em;
  color: var(--md-ink);
  margin: 0 0 28px;
}

.hero-subtitle {
  font-size: clamp(18px, 3vw, 22px);
  line-height: 1.32;
  letter-spacing: -0.012em;
  color: var(--md-text);
  max-width: 480px;
  margin: 0 0 36px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.hero-benefits {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.hero-benefits li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  color: var(--md-text);
}

.hero-benefits li::before {
  content: "";
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--md-accent);
}

.hero-artwork {
  position: relative;
  aspect-ratio: 4 / 3;
  min-height: 280px;
  overflow: hidden;
}

.hero-artwork-inner {
  position: absolute;
  inset: 0;
  background: var(--md-hero-moss);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-artwork svg {
  width: 100%;
  height: 100%;
}

/* Section shared */
.section {
  padding: var(--md-section) 0;
  border-bottom: 1px solid var(--md-border);
}

.section-alt {
  background-color: var(--md-surface);
}

.section-warm {
  background-color: var(--md-surface-warm);
}

.section-header {
  max-width: var(--md-content-width);
  margin-bottom: 48px;
}

.section-eyebrow {
  font-size: 13px;
  color: var(--md-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 12px;
}

.section-title {
  font-family: var(--md-serif);
  font-size: clamp(32px, 5vw, 44px);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.035em;
  color: var(--md-ink);
  margin: 0 0 16px;
}

.section-lead {
  font-size: 18px;
  line-height: 1.45;
  color: var(--md-muted-soft);
  margin: 0;
  max-width: 560px;
}

/* Domain cards */
.domain-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.domain-card {
  padding: 28px 0;
  border-top: 1px solid var(--md-border);
}

.domain-card:last-child {
  border-bottom: 1px solid var(--md-border);
}

.domain-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.topic-pill {
  display: inline-block;
  background: var(--md-surface-warm);
  color: var(--md-text);
  font-size: 13px;
  padding: 6px 14px;
  border-radius: var(--md-radius-pill);
}

.domain-name {
  font-family: var(--md-serif);
  font-size: 24px;
  font-weight: 400;
  color: var(--md-ink);
  margin: 0 0 10px;
  letter-spacing: -0.02em;
}

.domain-desc {
  font-size: 16px;
  line-height: 1.55;
  color: var(--md-muted-soft);
  margin: 0;
  max-width: 640px;
}

.domain-disclaimer {
  margin-top: 32px;
  font-size: 13px;
  color: var(--md-muted);
  font-style: italic;
}

.section-cta {
  margin-top: 32px;
}

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.feature-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 32px 0;
  border-top: 1px solid var(--md-border);
}

.feature-row:last-child {
  border-bottom: 1px solid var(--md-border);
}

.feature-label {
  font-size: 13px;
  color: var(--md-accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0;
}

.feature-title {
  font-family: var(--md-serif);
  font-size: 22px;
  font-weight: 400;
  color: var(--md-ink);
  margin: 0;
  letter-spacing: -0.02em;
}

.feature-text {
  font-size: 16px;
  line-height: 1.55;
  color: var(--md-muted-soft);
  margin: 0;
  max-width: 560px;
}

/* How it works */
.steps-list {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: steps;
}

.step-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 20px;
  padding: 32px 0;
  border-top: 1px solid var(--md-border);
}

.step-item:last-child {
  border-bottom: 1px solid var(--md-border);
}

.step-number {
  font-family: var(--md-serif);
  font-size: 32px;
  color: var(--md-accent);
  line-height: 1;
}

.step-title {
  font-size: 18px;
  font-weight: 500;
  color: var(--md-ink);
  margin: 0 0 8px;
  letter-spacing: -0.005em;
}

.step-text {
  font-size: 16px;
  line-height: 1.55;
  color: var(--md-muted-soft);
  margin: 0;
}

/* FAQ */
.faq-list {
  max-width: var(--md-content-width);
}

.faq-item {
  border-top: 1px solid var(--md-border);
}

.faq-item:last-child {
  border-bottom: 1px solid var(--md-border);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 0;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--md-sans);
  font-size: 18px;
  font-weight: 500;
  color: var(--md-ink);
  letter-spacing: -0.005em;
}

.faq-question:hover {
  color: var(--md-accent);
}

.faq-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  position: relative;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--md-ink);
  transition: transform var(--transition);
}

.faq-icon::before {
  top: 9px;
  left: 2px;
  width: 16px;
  height: 2px;
}

.faq-icon::after {
  top: 2px;
  left: 9px;
  width: 2px;
  height: 16px;
}

.faq-question[aria-expanded="true"] .faq-icon::after {
  transform: rotate(90deg);
  opacity: 0;
}

.faq-answer {
  overflow: hidden;
  max-height: 0;
  transition: max-height 280ms ease;
}

.faq-answer-inner {
  padding: 0 0 24px;
  font-size: 16px;
  line-height: 1.55;
  color: var(--md-muted-soft);
}

.faq-question[aria-expanded="true"] + .faq-answer {
  max-height: 300px;
}

/* CTA band */
.cta-band {
  background-color: var(--md-ink);
  color: var(--md-on-dark);
  padding: var(--md-section) 0;
}

.cta-band-inner {
  max-width: var(--md-content-width);
}

.cta-band .section-title {
  color: var(--md-on-dark);
}

.cta-band .section-lead {
  color: rgba(255, 255, 255, 0.75);
}

.cta-band-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.cta-band .btn-accent {
  background-color: var(--md-hero-green);
}

.cta-band .btn-accent:hover {
  background-color: var(--md-accent);
}

.cta-band .btn-secondary {
  background: transparent;
  color: var(--md-on-dark);
  border-color: rgba(255, 255, 255, 0.35);
}

.cta-band .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* Trust strip */
.trust-strip {
  padding: 32px 0;
  border-bottom: 1px solid var(--md-border);
}

.trust-items {
  display: flex;
  flex-wrap: wrap;
  gap: 24px 40px;
  justify-content: center;
}

.trust-item {
  text-align: center;
}

.trust-value {
  font-family: var(--md-serif);
  font-size: 28px;
  color: var(--md-ink);
  margin: 0 0 4px;
  letter-spacing: -0.02em;
}

.trust-label {
  font-size: 13px;
  color: var(--md-muted);
  margin: 0;
}

/* Footer */
.site-footer {
  padding: 48px 0 32px;
  background: var(--md-canvas);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
}

.footer-links a {
  font-size: 13px;
  color: var(--md-muted);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--md-ink);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer-copy {
  font-size: 13px;
  color: var(--md-muted);
  margin: 0;
}

.footer-disclosure {
  font-size: 12px;
  color: var(--md-muted);
  line-height: 1.45;
  max-width: 640px;
  margin: 0;
}

/* Responsive */
@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
  }

  .nav-toggle {
    display: none;
  }

  .hero-grid {
    grid-template-columns: 56% 44%;
    gap: 32px;
  }

  .domain-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0 48px;
  }

  .domain-card:nth-child(odd) {
    padding-right: 24px;
  }

  .domain-card:nth-child(even) {
    padding-left: 24px;
  }

  .features-grid {
    gap: 0;
  }

  .feature-row {
    grid-template-columns: 120px 1fr 2fr;
    align-items: start;
    gap: 24px;
  }

  .trust-items {
    justify-content: space-around;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}