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

html {
  scroll-behavior: smooth;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background: #1f1f1f;
  color: #f5f5f5;
}

.nav {
  width: 100%;
  padding: 28px 7%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 10;
}

.logo {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.nav nav {
  display: flex;
  gap: 28px;
}

.nav a {
  color: #cfcfcf;
  text-decoration: none;
  font-size: 14px;
}

.nav a:hover {
  color: #ffffff;
}

.hero {
  min-height: 100vh;
  padding: 140px 7% 90px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.tag,
.section-tag {
  font-size: 13px;
  letter-spacing: 5px;
  color: #b8b8b8;
  margin-bottom: 20px;
}

h1 {
  font-size: clamp(64px, 10vw, 120px);
  font-weight: 700;
  letter-spacing: -6px;
  margin-bottom: 22px;
}

.subtitle {
  font-size: clamp(24px, 4vw, 42px);
  font-weight: 600;
  color: #e7e7e7;
  margin-bottom: 18px;
}

.description {
  max-width: 620px;
  font-size: 20px;
  line-height: 1.6;
  color: #c8c8c8;
  margin-bottom: 38px;
}

.buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
}

.buttons a {
  text-decoration: none;
  padding: 15px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
}

.primary {
  background: #f5f5f5;
  color: #1f1f1f;
}

.secondary {
  border: 1px solid #707070;
  color: #f5f5f5;
}

.primary:hover {
  background: #dedede;
}

.secondary:hover {
  border-color: #f5f5f5;
}

.section {
  padding: 110px 7%;
  border-top: 1px solid #333;
}

.section h2 {
  max-width: 780px;
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 50px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.card {
  background: #292929;
  border: 1px solid #3a3a3a;
  border-radius: 28px;
  padding: 32px;
  min-height: 260px;
}

.card span {
  display: inline-block;
  color: #9d9d9d;
  font-size: 14px;
  margin-bottom: 42px;
}

.card h3 {
  font-size: 24px;
  line-height: 1.15;
  margin-bottom: 16px;
  letter-spacing: -0.7px;
}

.card p,
.text-block p,
.note p {
  color: #c8c8c8;
  font-size: 18px;
  line-height: 1.6;
}

.split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 70px;
  align-items: start;
}

.text-block {
  padding-top: 54px;
}

.note {
  background: #f5f5f5;
  color: #1f1f1f;
  border-top: none;
}

.note h2 {
  margin-bottom: 24px;
}

.note p {
  color: #333;
  max-width: 760px;
}

.cta {
  padding: 120px 7%;
  text-align: center;
  border-top: 1px solid #333;
}

.cta h2 {
  font-size: clamp(38px, 5vw, 72px);
  letter-spacing: -2px;
  margin-bottom: 34px;
}

footer {
  padding: 34px 7%;
  border-top: 1px solid #333;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #9d9d9d;
  font-size: 14px;
}

footer div {
  display: flex;
  gap: 22px;
}

footer a {
  color: #cfcfcf;
  text-decoration: none;
}

footer a:hover {
  color: #ffffff;
}

@media (max-width: 850px) {
  .nav {
    position: relative;
    padding: 24px 6%;
  }

  .nav nav {
    display: none;
  }

  .hero {
    min-height: 85vh;
    padding: 90px 6%;
  }

  h1 {
    letter-spacing: -3px;
  }

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

  .split {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .text-block {
    padding-top: 0;
  }

  footer {
    flex-direction: column;
    gap: 18px;
  }
}