:root {
  --vault-dark: #16221d;
  --brass: #b08d34;
  --manila: #f0e6cf;
  --oxblood: #8c2f22;
  --ink: #2b2b26;
  --verdigris: #6b8577;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--manila);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.backdrop {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: radial-gradient(ellipse 120% 60% at 50% -10%, rgba(176, 141, 52, 0.16), transparent 60%),
    var(--manila);
}

header.top {
  display: flex;
  justify-content: center;
  padding: 28px 20px 0;
}

.wordmark {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 700;
  font-size: 20px;
  color: var(--vault-dark);
  letter-spacing: 0.02em;
}

.wordmark .accent {
  color: var(--brass);
}

main {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 20px;
}

.hero {
  text-align: center;
  padding: 56px 0 40px;
}

.eyebrow {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brass);
  margin: 0 0 16px;
}

h1 {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 700;
  font-size: clamp(32px, 7vw, 56px);
  line-height: 1.08;
  color: var(--vault-dark);
  margin: 0 0 20px;
}

.subhead {
  font-size: clamp(16px, 2.4vw, 19px);
  color: rgba(43, 43, 38, 0.78);
  max-width: 560px;
  margin: 0 auto 32px;
}

.signup {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 420px;
  margin: 0 auto;
}

@media (min-width: 480px) {
  .signup {
    flex-direction: row;
  }
}

.signup input[type="email"] {
  flex: 1;
  min-width: 0;
  padding: 14px 18px;
  font-size: 16px;
  font-family: inherit;
  color: var(--ink);
  background: #fff;
  border: 1px solid rgba(43, 43, 38, 0.14);
  border-radius: 12px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.signup input[type="email"]:focus {
  border-color: var(--brass);
  box-shadow: 0 0 0 3px rgba(176, 141, 52, 0.18);
}

.signup input[type="email"]:invalid:not(:placeholder-shown):not(:focus) {
  border-color: var(--oxblood);
}

.signup button {
  padding: 14px 24px;
  font-size: 16px;
  font-family: inherit;
  font-weight: 600;
  color: var(--vault-dark);
  background: var(--brass);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.1s ease, box-shadow 0.15s ease, opacity 0.15s ease;
  box-shadow: 0 6px 18px rgba(176, 141, 52, 0.3);
}

.signup button:hover {
  transform: translateY(-1px);
}

.signup button:active {
  transform: translateY(0);
}

.signup button:disabled {
  opacity: 0.6;
  cursor: default;
  transform: none;
}

.form-message {
  min-height: 24px;
  margin: 16px 0 0;
  font-size: 14px;
  font-weight: 500;
}

.form-message[data-state="success"] {
  color: var(--verdigris);
}

.form-message[data-state="error"] {
  color: var(--oxblood);
}

.features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  padding: 24px 0 64px;
}

@media (min-width: 720px) {
  .features {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature {
  background: #fff;
  border-radius: 16px;
  padding: 28px 24px;
  box-shadow: 0 1px 3px rgba(22, 34, 29, 0.06);
}

.feature-icon {
  font-size: 28px;
  display: inline-block;
  margin-bottom: 12px;
}

.feature h2 {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 600;
  font-size: 19px;
  color: var(--vault-dark);
  margin: 0 0 8px;
}

.feature p {
  font-size: 15px;
  color: rgba(43, 43, 38, 0.78);
  margin: 0;
}

.closing {
  text-align: center;
  background: var(--vault-dark);
  border-radius: 24px;
  padding: 48px 24px;
  margin-bottom: 64px;
}

.closing h2 {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 700;
  font-size: clamp(24px, 4vw, 32px);
  color: var(--manila);
  margin: 0 0 12px;
}

.closing .subhead {
  color: rgba(240, 230, 207, 0.75);
  margin-bottom: 28px;
}

.closing .signup input[type="email"] {
  border-color: transparent;
}

footer {
  text-align: center;
  padding: 24px 20px 48px;
  font-size: 13px;
  color: rgba(43, 43, 38, 0.55);
}