/* --- Reset & Base --- */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at center, #ffffff 0%, #DACEFF 50%);
  color: #1a1a1a;
  line-height: 1.6;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* --- Landing --- */

.landing {
  text-align: center;
  padding: 2rem 1.5rem;
  max-width: 480px;
  width: 100%;
}

.landing-title {
  font-family: "Instrument Serif", Georgia, serif;
  font-weight: 400;
  font-size: 3.5rem;
  line-height: 1.1;
  color: #1a1a1a;
  margin-bottom: 0.5rem;
}

.landing-subtitle {
  font-size: 0.9375rem;
  color: #1a1a1a;
  margin-bottom: 2.5rem;
}

/* --- Email Form --- */

.signup-form {
  position: relative;
  max-width: 400px;
  margin: 0 auto;
}

.signup-input {
  width: 100%;
  padding: 0.875rem 9rem 0.875rem 1.25rem;
  font-family: inherit;
  font-size: 0.9375rem;
  color: #1a1a1a;
  background: #ffffff;
  border: none;
  border-radius: 999px;
  outline: none;
  transition: border-color 0.15s ease;
}

.signup-input::placeholder {
  color: #b0b0a8;
}

.signup-input:focus {
  outline: none;
}

.signup-button {
  position: absolute;
  right: 0.3rem;
  top: 50%;
  transform: translateY(-50%);
  padding: 0.625rem 1.25rem;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  color: #ffffff;
  background: #1a1a1a;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s ease;
}

.signup-button:hover {
  background: #333333;
}

.signup-button:disabled {
  opacity: 0.6;
  cursor: default;
}

/* --- Message --- */

.signup-message {
  margin-top: 1rem;
  font-size: 0.875rem;
  min-height: 1.25rem;
}

.signup-message.success {
  color: #1a1a1a;
}

.signup-message.error {
  color: #d44;
}

/* --- Responsive --- */

@media (max-width: 420px) {
  .landing-title {
    font-size: 2.75rem;
  }

  .signup-input {
    padding-right: 8.5rem;
  }
}