:root {
  --bg: #111;
  --fg: #fff;
  --muted: #9a9a9a;
  --border: #1a1a1a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  line-height: 1.5;
}

.page {
  padding: 0 0 3rem 0;
}

/* HERO */
.hero {
  background: linear-gradient(180deg, #000000 0%, var(--bg) 100%);
  padding: 0 2em;
}

.hero-inner {
  width: 100%;
  max-width: 1100px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
  position: relative;
  padding: 3rem 0;
  margin: 0 auto;
}

.photo {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 420px;
  width: 100%;
}

.hero-text h1 {
  font-size: 2.5rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  margin: 0;
}

.hero-text {
  margin-top: 6rem;
}

.tagline {
  margin-top: 0.5rem;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero-text p {
  margin-top: 2rem;
  max-width: 400px;
  font-size: 1.05rem;
}

.hero-text p.subtext {
  font-size: 0.85rem;
  border-top: solid 1px rgba(255, 255, 255, 0.2); 
  padding-top: 1rem;
}

.signup {
  margin-top: 2rem;
  display: flex;
  gap: 0.5rem;
  max-width: 360px;
}

.signup.is-complete {
  display: none;
}

.signup.is-submitting {
  opacity: 0.6;
  pointer-events: none;
}

.signup input {
  flex: 1;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
  padding: 0.6rem 0.7rem;
  font-family: inherit;
  font-size: 0.9rem;
}

.signup button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
  padding: 0.6rem 0.9rem;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.signup-message {
  margin-top: 1rem;
  max-width: 360px;
  padding: 0.85rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--fg);
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  display: none;
}

.signup-message.is-pending,
.signup-message.is-error,
.signup.is-complete + .signup-message {
  display: block;
}

.signup-message.is-error {
  border-color: rgba(255, 120, 120, 0.7);
  color: #ff9a9a;
}

/* SECTIONS */
section {
  margin-top: 6rem;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 2rem;
}

section h2 {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  position: relative;
  padding-top: 1.25rem;
}

section h2::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: rgba(255, 255, 255, 0.2);
}

section p {
  margin-bottom: 1.25rem;
  font-size: 1rem;
}

section li {
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

a {
  color: inherit;
}

/* RESPONSIVE */
@media (max-width: 800px) {
  .page {
    padding: 0 0 3rem 0;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 2.5rem 0;
  }

  .photo {
    max-width: 360px;
    margin: 0 auto;
  }

  .hero-text {
    margin-top: 0;
  }

  .hero-text p {
    max-width: 48ch;
  }
}

@media (max-width: 600px) {
  .page {
    padding: 0 0 3rem 0;
  }

  .hero-inner {
    padding: 2rem 0;
  }

  .hero-text h1 {
    font-size: 2.1rem;
  }

  .hero-text p {
    font-size: 1rem;
  }

  .signup {
    flex-direction: column;
    max-width: 100%;
  }

  .signup button {
    width: 100%;
  }

  section {
    margin-top: 4rem;
    padding: 0 1.25rem;
  }

  section h2 {
    letter-spacing: 0.14em;
  }
}