:root {
  --green: #00a651;
  --ink: #0d0d0d;
  --cream: #f7f1e3;
  --muted: #8a8577;
  --line: rgba(247, 241, 227, 0.18);
}

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

body {
  background: var(--ink);
  color: var(--cream);
  font-family: "Montserrat", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

/* ---------- buttons ---------- */
.btn {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 15px 22px;
  font: 700 15px/1 "Montserrat", sans-serif;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease;
}
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.6; cursor: default; }
.btn-green { background: var(--green); color: #fff; }
.btn-full { width: 100%; margin-top: 8px; }

/* ---------- layout ---------- */
.top {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 16px;
}
.logo-link { display: inline-flex; }
.logo { display: block; height: 30px; filter: drop-shadow(0 2px 10px rgba(0, 0, 0, 0.5)); }

.hero { position: relative; min-height: 78vh; display: flex; align-items: flex-end; }
.hero-img {
  position: absolute;
  inset: 0;
  background: url("hero.jpg") center 35% / cover no-repeat;
}
.hero-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(13,13,13,0.35) 0%, rgba(13,13,13,0) 30%, rgba(13,13,13,0.75) 70%, var(--ink) 100%);
}
.hero-copy { position: relative; padding: 0 16px 32px; max-width: 640px; }
.kicker {
  color: var(--green);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
h1 {
  font-weight: 900;
  font-size: clamp(42px, 11vw, 80px);
  line-height: 0.95;
  letter-spacing: -0.03em;
}
.sub { margin-top: 16px; font-size: 16px; line-height: 1.5; color: rgba(247, 241, 227, 0.85); max-width: 460px; }

.join {
  padding: 8px 16px 48px;
  max-width: 640px;
  display: grid;
  gap: 28px;
}
.perks { list-style: none; display: grid; gap: 12px; }
.perks li {
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.4;
}
.perks span { color: var(--green); font-weight: 800; font-size: 12px; }

form { display: grid; gap: 8px; }
form > label { font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-top: 8px; }
form > label em { font-style: normal; text-transform: none; letter-spacing: 0; font-weight: 500; }
input[type="text"], input[type="email"] {
  width: 100%;
  padding: 15px 16px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(247, 241, 227, 0.06);
  color: var(--cream);
  font: 500 16px "Montserrat", sans-serif;
}
input:focus { outline: 2px solid var(--green); outline-offset: 1px; }
.check { display: flex; gap: 10px; align-items: flex-start; margin-top: 12px; font-size: 13px; line-height: 1.45; color: rgba(247, 241, 227, 0.8); }
.check input { margin-top: 3px; width: 18px; height: 18px; accent-color: var(--green); flex: none; }
.note { min-height: 20px; font-size: 14px; margin-top: 6px; }
.note.ok { color: var(--green); }
.note.err { color: #ff7a6b; }

.foot {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  justify-content: space-between;
  padding: 24px 16px 32px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
}

@media (min-width: 900px) {
  main { display: grid; grid-template-columns: 1.1fr 1fr; min-height: 100vh; }
  .hero { min-height: 100vh; }
  .hero-copy { padding: 0 40px 56px; }
  .join { align-content: center; padding: 96px 56px; }
  .top { padding: 28px 40px; }
}