:root {
  --canvas: #f0f0f0;
  --surface: #ffffff;
  --ink: #0a0a0a;
  --ink-secondary: #404040;
  --ink-muted: #8a8a8a;
  --line: rgba(10, 10, 10, 0.12);
  --line-strong: #0a0a0a;
  --accent: #e8192c;
  --accent-soft: rgba(232, 25, 44, 0.12);
  --radius-sm: 8px;
  --radius-card: 20px;
  --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.06);
  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --max-width: 960px;
}

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

html {
  scroll-behavior: smooth;
  height: 100%;
}

body {
  display: flex;
  flex-direction: column;
  margin: 0;
  min-height: 100%;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--canvas);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--ink);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

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

.site-header {
  border-bottom: 1px solid var(--line-strong);
  background: var(--surface);
}

.site-header__inner,
.site-main,
.site-footer__inner {
  width: min(calc(100% - 32px), var(--max-width));
  margin-inline: auto;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  color: inherit;
  text-decoration: none;
}

.brand:hover {
  color: inherit;
}

.brand__icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.brand__copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand__title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1;
}

.brand__title-accent {
  font-weight: 300;
  letter-spacing: 0.18em;
}

.brand__subtitle {
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
}

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

.site-nav a.is-active {
  color: var(--accent);
}

.site-main {
  flex: 1;
  padding: 48px 0 72px;
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 72px;
}

.hero__eyebrow {
  margin: 0 0 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero__title {
  margin: 0 0 16px;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.hero__lead {
  margin: 0 0 28px;
  max-width: 34rem;
  font-size: 1.05rem;
  color: var(--ink-secondary);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink);
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease, background-color 0.15s ease;
}

.button:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

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

.button--primary:hover {
  background: #c91527;
  border-color: #c91527;
  color: #ffffff;
}

.hero__preview {
  margin: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.hero__screenshot {
  display: block;
  width: 100%;
  height: auto;
}

.section {
  margin-bottom: 56px;
}

.section__title {
  margin: 0 0 12px;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section__lead {
  margin: 0 0 28px;
  max-width: 42rem;
  color: var(--ink-secondary);
}

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

.feature-card {
  padding: 22px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-card);
  background: var(--surface);
}

.feature-card h3 {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 700;
}

.feature-card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--ink-secondary);
}

.steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 16px;
  align-items: start;
  padding: 18px 20px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-card);
  background: var(--surface);
}

.steps__number {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
}

.steps strong {
  display: block;
  margin-bottom: 4px;
}

.steps span {
  color: var(--ink-secondary);
  font-size: 0.95rem;
}

.page-header {
  margin-bottom: 32px;
}

.page-header h1 {
  margin: 0 0 8px;
  font-size: clamp(2rem, 4vw, 2.6rem);
  letter-spacing: -0.03em;
}

.page-header p {
  margin: 0;
  color: var(--ink-secondary);
}

.prose {
  padding: 32px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-card);
  background: var(--surface);
}

.prose h2 {
  margin: 32px 0 12px;
  font-size: 1.15rem;
}

.prose h2:first-child {
  margin-top: 0;
}

.prose p,
.prose li {
  color: var(--ink-secondary);
}

.prose ul {
  margin: 0 0 16px;
  padding-left: 1.2rem;
}

.prose p:last-child {
  margin-bottom: 0;
}

.site-footer {
  flex-shrink: 0;
  margin-top: auto;
  border-top: 1px solid var(--line-strong);
  background: var(--surface);
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 20px 0;
  font-size: 13px;
  color: var(--ink-muted);
}

.site-footer__links {
  display: flex;
  gap: 18px;
}

@media (max-width: 820px) {
  .hero,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .site-header__inner {
    flex-direction: column;
    align-items: flex-start;
  }
}