:root {
  color-scheme: dark;
  --text: #f5f5f7;
  --muted: #a1a1aa;
  --background: #111113;
  --surface: #1b1b1e;
  --border: #2c2c31;
  --accent: #d4ff3f;
  --radius: 0.5rem;
  --space: 1rem;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family:
    system-ui,
    -apple-system,
    "Segoe UI",
    Roboto,
    sans-serif;
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--background);
}

h1,
h2,
h3 {
  line-height: 1.25;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.125rem;
}

a {
  color: var(--accent);
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.container {
  max-width: 46rem;
  margin: 0 auto;
  padding: 0 var(--space);
}

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space);
  padding-block: calc(var(--space) * 1.25);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

.site-header ul,
.site-footer ul {
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--space) * 1.25);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-header nav a {
  color: var(--muted);
  font-size: 1rem;
  text-decoration: none;
}

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

main > section {
  padding-block: calc(var(--space) * 2);
}

.hero {
  padding-block: calc(var(--space) * 3) calc(var(--space) * 2);
}

.hero h1 {
  margin: 0 0 var(--space);
  font-size: clamp(2rem, 6vw, 2.75rem);
  line-height: 1.15;
}

.lead {
  margin: 0 0 calc(var(--space) * 1.5);
  font-size: 1.2rem;
  color: var(--muted);
}

.button {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--background);
  font-weight: 700;
  text-decoration: none;
}

.button:hover {
  background: var(--text);
}

.steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.steps li {
  display: flex;
  gap: var(--space);
  padding-block: 0.875rem;
  border-top: 1px solid var(--border);
  counter-increment: step;
}

.steps li:last-child {
  border-bottom: 1px solid var(--border);
}

.steps li::before {
  content: counter(step) ".";
  min-width: 1.25rem;
  font-weight: 700;
  color: var(--muted);
}

.checks,
.crosses {
  padding: 0;
  list-style: none;
}

.checks li,
.crosses li {
  position: relative;
  margin-block: 0.4rem;
  padding-left: 1.5rem;
}

.checks li::before,
.crosses li::before {
  position: absolute;
  left: 0;
}

.checks li::before {
  content: "✓";
  color: var(--accent);
}

.crosses li::before {
  content: "–";
  color: var(--muted);
}

.crosses li {
  color: var(--muted);
}

.card {
  margin-block: calc(var(--space) * 2);
  padding: calc(var(--space) * 1.5);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.card h2 {
  margin-top: 0;
}

#pricing > p:last-of-type {
  font-size: 1rem;
  color: var(--muted);
}

#faq details {
  border-top: 1px solid var(--border);
}

#faq details:last-of-type {
  border-bottom: 1px solid var(--border);
}

#faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space);
  padding-block: 1rem;
  font-weight: 600;
  list-style: none;
  cursor: pointer;
}

#faq summary::-webkit-details-marker {
  display: none;
}

#faq summary::after {
  content: "+";
  flex-shrink: 0;
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1;
  color: var(--muted);
}

#faq details[open] summary::after {
  content: "−";
}

#faq summary:hover {
  color: var(--accent);
}

#faq details p {
  margin: 0;
  padding-bottom: 1rem;
  color: var(--muted);
}

.site-footer {
  margin-top: calc(var(--space) * 3);
  padding-block: calc(var(--space) * 1.5);
  border-top: 1px solid var(--border);
  font-size: 1rem;
  color: var(--muted);
}