@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --font-sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', 'SF Mono', Menlo, monospace;

  --color-text: #0f172a;
  --color-text-secondary: #475569;
  --color-text-muted: #64748b;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-accent: #0f172a;
  --color-accent-hover: #1e293b;
  --color-border: #e2e8f0;
  --color-border-strong: #cbd5e1;
  --color-surface: #f8fafc;
  --color-code-bg: #f1f5f9;
  --color-brand: #16a34a;

  --width-prose: 720px;
  --width-wide: 1120px;
  --width-narrow: 580px;

  --space-section: 6rem;
  --space-section-sm: 4rem;
}

html {
  font-family: var(--font-sans);
  font-size: 17px;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'ss01', 'cv11';
}

body {
  min-height: 100vh;
}

/* Layout */

.prose {
  max-width: var(--width-prose);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.wide {
  max-width: var(--width-wide);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.narrow {
  max-width: var(--width-narrow);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Typography */

h1 {
  font-size: 2.5rem;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--color-text);
}

h2 {
  font-size: 2rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

p {
  color: var(--color-text-secondary);
  font-size: 1.0625rem;
  line-height: 1.75;
  max-width: 65ch;
}

.prose p {
  margin-left: auto;
  margin-right: auto;
}

.prose p + p {
  margin-top: 1.25rem;
}

.lead {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--color-text);
  font-weight: 400;
  letter-spacing: -0.005em;
}

a {
  color: var(--color-text);
  text-decoration: underline;
  text-decoration-color: var(--color-border-strong);
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color 150ms ease, text-decoration-color 150ms ease;
}

a:hover {
  color: var(--color-accent-hover);
  text-decoration-color: var(--color-text);
}

strong {
  color: var(--color-text);
  font-weight: 600;
}

/* Eyebrow label above section headings */

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-brand);
  margin-bottom: 1rem;
}

/* Sections */

section {
  padding: var(--space-section-sm) 0;
}

@media (min-width: 768px) {
  section {
    padding: var(--space-section) 0;
  }
}

section + section {
  border-top: 1px solid var(--color-border);
}

section h2 {
  margin-bottom: 1.25rem;
}

section p + p {
  margin-top: 1.25rem;
}

/* Header */

.site-header {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  z-index: 50;
}

.site-header .wide {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-header .logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 1.0625rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.site-header .logo img {
  width: 192px;
  height: 192px;
  border-radius: 50%;
  aspect-ratio: 1;
  object-fit: cover;
}

.site-header nav {
  display: flex;
  gap: 1.75rem;
  align-items: center;
}

.site-header nav a {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: 500;
}

.site-header nav a:hover {
  color: var(--color-text);
}

/* Hero */

#hero {
  padding: 3.5rem 0 6rem;
}

#hero h1 {
  margin-bottom: 1.75rem;
  max-width: 880px;
}

.hero-intro {
  display: block;
  font-size: 2.5rem;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--color-text);
}

#hero .subtitle {
  font-size: 1.25rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  max-width: 640px;
  margin: 0 0 2.5rem;
}

#hero .subtitle strong {
  color: var(--color-text);
  font-weight: 500;
}

/* Waitlist form */

.waitlist-form {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  max-width: 440px;
  margin: 0 auto 0.75rem;
}

.waitlist-form input[type="email"] {
  flex: 1;
  padding: 0.875rem 1rem;
  font-size: 0.9375rem;
  font-family: var(--font-sans);
  border: 1px solid var(--color-border-strong);
  border-radius: 8px;
  outline: none;
  min-width: 0;
}

.waitlist-form input[type="email"]:focus {
  border-color: var(--color-accent);
}

.waitlist-form button {
  padding: 0.875rem 1.75rem;
  font-size: 0.9375rem;
  font-family: var(--font-sans);
  font-weight: 600;
  color: #fff;
  background: var(--color-accent);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  white-space: nowrap;
  transition: background 150ms ease;
}

.waitlist-form button:hover {
  background: var(--color-accent-hover);
}

.form-note {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Inline links */

.inline-links {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-top: 1rem;
}

.inline-links a {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* Trust bar */

.trust-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem 2.5rem;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.trust-bar span {
  white-space: nowrap;
}

/* Code block */

pre {
  background: var(--color-code-bg);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.7;
  margin: 1.5rem auto;
  max-width: 100%;
}

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--color-code-bg);
  padding: 0.125em 0.375em;
  border-radius: 4px;
  color: var(--color-text);
}

pre code {
  background: none;
  padding: 0;
  font-size: inherit;
  color: inherit;
}

/* Domain table */

.domain-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1.5rem;
  font-size: 1rem;
  border-top: 1px solid var(--color-border);
}

.domain-table th,
.domain-table td {
  text-align: left;
  padding: 1rem 1rem;
  border-bottom: 1px solid var(--color-border);
}

.domain-table th {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.domain-table td {
  color: var(--color-text-secondary);
}

.domain-table td:first-child {
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  width: 1%;
  padding-right: 2rem;
}

/* Fact list — structured bullets */

.fact-list {
  list-style: none;
  padding: 0;
  margin-top: 1.5rem;
  display: grid;
  gap: 1rem;
}

.fact-list li {
  padding: 0;
  padding-left: 1.75rem;
  position: relative;
  color: var(--color-text-secondary);
  font-size: 1.0625rem;
  line-height: 1.7;
}

.fact-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.75rem;
  width: 0.75rem;
  height: 1px;
  background: var(--color-brand);
}

.fact-list li strong {
  color: var(--color-text);
  font-weight: 600;
}

/* Feature grid — scannable 2-col cards for feature-heavy sections */

.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 2rem;
}

@media (min-width: 768px) {
  .feature-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
  }
}

.feature-card {
  padding: 1.75rem 1.75rem;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-bg);
  transition: border-color 180ms ease, transform 180ms ease;
}

.feature-card:hover {
  border-color: var(--color-border-strong);
}

.feature-card .label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-brand);
  margin-bottom: 0.625rem;
  display: block;
}

.feature-card h3 {
  font-size: 1.125rem;
  margin-bottom: 0.625rem;
  color: var(--color-text);
}

.feature-card p {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  margin: 0;
  max-width: none;
}

/* Section header block: eyebrow + h2 + intro */

.section-header {
  max-width: var(--width-prose);
  margin: 0 auto 1.5rem;
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header .intro {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 65ch;
}

/* Two-column for who-is-it-for */

.buyer-grid {
  display: grid;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.buyer-card {
  padding: 1.75rem;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-bg);
}

.buyer-card h3 {
  margin-bottom: 0.75rem;
}

.buyer-card p {
  font-size: 1rem;
  max-width: none;
}

/* Docs footer */

.docs-footer {
  background: var(--color-surface);
  padding: 4rem 0 3rem;
  border-top: 1px solid var(--color-border);
}

.docs-footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

.docs-footer h3 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.docs-footer ul {
  list-style: none;
  padding: 0;
}

.docs-footer li {
  padding: 0.375rem 0;
}

.docs-footer a {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  text-decoration: none;
}

.docs-footer a:hover {
  color: var(--color-text);
}

/* Site footer */

.site-footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Payment rails */

.rails {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.75rem;
}

.rail {
  padding: 1.75rem;
  border: 1px solid var(--color-border);
  border-radius: 12px;
}

.rail h3 {
  margin-bottom: 0.75rem;
}

.rail p {
  font-size: 1rem;
  max-width: none;
}

/* Responsive */

@media (min-width: 768px) {
  h1 {
    font-size: 3.25rem;
  }

  h2 {
    font-size: 2.25rem;
  }

  #hero {
    padding: 4rem 0 7rem;
  }

  .hero-intro {
    font-size: 3.5rem;
  }

  #hero h1 {
    font-size: 3.5rem;
  }

  #hero .subtitle {
    font-size: 1.3125rem;
  }

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

  .docs-footer-grid {
    grid-template-columns: repeat(5, 1fr);
  }

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

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}