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

:root {
  --black: #000;
  --white: #fff;
  --gray: #888;
  --light-gray: #ccc;
}

body {
  background: var(--black);
  color: var(--white);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
}

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

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

/* NAV */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  background: var(--black);
  border-bottom: 1px solid #222;
}

nav .logo {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  border: none;
}

nav .nav-links {
  display: flex;
  gap: 30px;
  list-style: none;
}

nav .nav-links a {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border: none;
  color: var(--gray);
  transition: color 0.2s;
}

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

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0 40px;
}

.hero h1 {
  font-size: clamp(48px, 12vw, 160px);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 0.9;
  text-transform: uppercase;
}

.hero .tagline {
  margin-top: 30px;
  font-size: 14px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gray);
}

.hero .cta {
  margin-top: 50px;
  display: inline-block;
  padding: 16px 60px;
  border: 2px solid var(--white);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  transition: background 0.2s, color 0.2s;
}

.hero .cta:hover {
  background: var(--white);
  color: var(--black);
}

/* SECTIONS */
section {
  padding: 120px 40px;
  max-width: 900px;
  margin: 0 auto;
}

section.full-width {
  max-width: 100%;
  padding: 120px 40px;
}

.section-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 60px;
}

/* FEATURES */
.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.feature h3 {
  font-size: 24px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.feature p {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.7;
}

/* DIVIDER */
.divider {
  width: 100%;
  height: 1px;
  background: #222;
  max-width: 900px;
  margin: 0 auto;
}

/* AGREEMENT */
.agreement h2 {
  font-size: 32px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 40px;
}

.agreement h3 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-top: 40px;
  margin-bottom: 16px;
}

.agreement p,
.agreement li {
  font-size: 14px;
  color: var(--light-gray);
  line-height: 1.8;
  margin-bottom: 10px;
}

.agreement ul,
.agreement ol {
  padding-left: 20px;
}

.agreement .placeholder {
  color: var(--gray);
  font-style: italic;
}

/* FOOTER */
footer {
  padding: 40px;
  border-top: 1px solid #222;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray);
}

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

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

/* MOBILE */
@media (max-width: 768px) {
  nav {
    padding: 16px 20px;
  }

  .hero {
    padding: 0 20px;
  }

  .hero h1 {
    font-size: clamp(40px, 14vw, 100px);
  }

  .hero .cta {
    padding: 14px 40px;
  }

  section {
    padding: 80px 20px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  footer {
    flex-direction: column;
    gap: 16px;
    text-align: center;
    padding: 30px 20px;
  }
}