* {
  box-sizing: border-box;
}

:root {
  --bg: #000000;
  --fg: #f2f2f2;
  --muted: #d8d8d8;
  --border: #222222;
  --accent: #d4af37;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  font-size: 18px;
}

a {
  color: inherit;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.logo {
  font-weight: bold;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
}

.nav nav {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
}

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

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

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 56px 28px 80px;
}

.home-intro {
  max-width: 720px;
}

.home-intro h1 {
  margin: 0 0 24px;
  font-size: clamp(2.3rem, 7vw, 3.6rem);
  line-height: 1;
}

.home-intro p {
  margin: 0 0 18px;
  font-size: 1.08rem;
  color: var(--muted);
}

.home-actions {
  margin-top: 30px;
}

.button-primary {
  display: inline-block;
  background: #ffffff;
  color: #000000;
  text-decoration: none;
  padding: 14px 20px;
  font-size: 1rem;
  line-height: 1.2;
}

.button-primary:hover {
  background: var(--accent);
  color: #000000;
}

h1, h2, h3 {
  color: #ffffff;
}

p {
  max-width: 65ch;
}

.form-container {
  margin-top: 24px;
}

iframe {
  display: block;
  width: 100%;
  min-height: 1100px;
  background: #ffffff;
  border: none;
}

/* Tablet */
@media (max-width: 900px) {
  body {
    font-size: 17px;
  }

  main {
    padding: 40px 22px 64px;
  }

  .nav {
    padding: 14px 18px;
  }

  .nav nav {
    gap: 16px;
  }
}

/* Mobile */
@media (max-width: 700px) {
  body {
    font-size: 17px;
  }

  .nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 16px 14px;
  }

  .logo {
    font-size: 1.15rem;
  }

  .nav nav {
    width: 100%;
    gap: 12px 16px;
  }

  .nav a {
    font-size: 1rem;
  }

  main {
    padding: 32px 16px 56px;
  }

  .home-intro h1 {
    margin-bottom: 18px;
  }

  .home-intro p {
    font-size: 1rem;
    color: #e6e6e6;
  }

  .button-primary {
    width: 100%;
    text-align: center;
    padding: 14px 16px;
  }

  iframe {
    min-height: 1400px;
  }
}