.signup-main {
  display: grid;
  min-height: calc(100vh - 68px - 178px);
  place-items: center;
  padding-block: 72px;
}

.signup-card {
  width: min(100%, 480px);
  padding: 42px;
  border: 1px solid var(--line-strong);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.signup-kicker {
  margin: 0 0 10px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.signup-card h1 {
  margin: 0;
  font-size: clamp(30px, 6vw, 40px);
  letter-spacing: -0.045em;
  line-height: 1.08;
}

.signup-intro {
  margin: 16px 0 28px;
  color: var(--muted);
}

.signup-card form {
  display: grid;
  gap: 10px;
  margin-top: 28px;
}

.signup-card input {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid #bac7cf;
  border-radius: 9px;
  background: var(--white);
  color: var(--navy);
  font: inherit;
}

.signup-card input:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
}

.signup-card button {
  width: 100%;
  margin-top: 8px;
}

.signup-note {
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 600px) {
  .signup-main { padding-block: 32px; }
  .signup-card { padding: 30px 24px; }
}