:root {
  --bg: #0c0f12;
  --cream: #f4f1ea;
  --muted: #9c978e;
  --line: #2a2e33;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--cream);
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  font-size: 18px;
  line-height: 1.55;
  min-height: 100vh;
}

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

a {
  color: var(--cream);
  text-decoration: none;
  border-bottom: 1px solid var(--muted);
}

a:hover {
  border-bottom-color: var(--cream);
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 28px 56px;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(12, 15, 18, 0.92);
  backdrop-filter: blur(8px);
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  border: none;
  font-weight: 500;
  letter-spacing: -0.02em;
  font-size: 17px;
}

.mark {
  width: 36px;
  height: 36px;
}

nav {
  display: flex;
  gap: 36px;
}

nav a {
  border: none;
  font-size: 15px;
  color: var(--muted);
  letter-spacing: 0.01em;
}

nav a:hover {
  color: var(--cream);
}

nav a.signin {
  color: var(--cream);
  border: 1px solid var(--muted);
  border-radius: 6px;
  padding: 7px 14px;
}

nav a.signin:hover {
  border-color: var(--cream);
}

.hero {
  padding: 140px 56px 100px;
  max-width: 980px;
}

.hero-mark-wrap {
  margin-bottom: 48px;
}

.hero-mark {
  width: 160px;
  height: auto;
}

h1 {
  font-size: 64px;
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.035em;
  margin-bottom: 28px;
}

.lede {
  font-size: 21px;
  color: var(--muted);
  max-width: 680px;
  line-height: 1.6;
}

section {
  padding: 100px 56px;
  border-top: 1px solid var(--line);
}

h2 {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 48px;
}

.cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px 48px;
  max-width: 1100px;
}

article h3 {
  font-size: 26px;
  font-weight: 500;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

article p {
  color: var(--muted);
  max-width: 460px;
  font-size: 17px;
}

.proof-block {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 56px;
  align-items: center;
  max-width: 1200px;
}

.proof-block img {
  border-radius: 6px;
  width: 100%;
}

.proof-copy h3 {
  font-size: 36px;
  font-weight: 500;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

.proof-copy p {
  margin-bottom: 14px;
  color: var(--muted);
}

.proof-copy a {
  color: var(--cream);
}

.note {
  font-size: 16px;
  margin-top: 28px;
}

footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 48px 56px;
  border-top: 1px solid var(--line);
  font-size: 16px;
  color: var(--muted);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

footer a {
  border: none;
  color: var(--muted);
}

footer a:hover {
  color: var(--cream);
}

@media (max-width: 860px) {
  header, section, footer, .hero {
    padding-left: 24px;
    padding-right: 24px;
  }

  header {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    padding-top: 20px;
    padding-bottom: 20px;
  }

  h1 {
    font-size: 40px;
  }

  .hero {
    padding-top: 80px;
    padding-bottom: 60px;
  }

  .hero-mark {
    width: 120px;
  }

  .cards, .proof-block {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  nav {
    gap: 24px;
  }

  section {
    padding-top: 72px;
    padding-bottom: 72px;
  }
}