:root {
  --ivory: #f6f2e9;
  --paper: #fffdf8;
  --sand: #d8cbb7;
  --sage: #71806a;
  --sage-dark: #4e5e49;
  --ink: #3d3a34;
  --muted: #777167;
  --error: #8d514b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 12%, rgba(113,128,106,.12), transparent 25rem),
    radial-gradient(circle at 92% 92%, rgba(216,203,183,.28), transparent 30rem),
    var(--ivory);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
}

.shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 18px;
}

.card {
  width: min(100%, 480px);
  padding: 44px 34px 34px;
  border: 1px solid rgba(113,128,106,.2);
  border-radius: 28px;
  background: rgba(255,253,248,.94);
  box-shadow: 0 20px 60px rgba(65,58,47,.08);
  text-align: center;
}

.mark {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  margin: 0 auto 18px;
  border: 1px solid var(--sand);
  border-radius: 50% 42% 48% 45%;
  color: var(--sage-dark);
  font: 28px/1 Georgia, serif;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--sage);
  font-size: 12px;
  letter-spacing: .22em;
}

h1 { margin: 0; font: 400 31px/1.25 Georgia, "Times New Roman", serif; letter-spacing: .05em; }
h2 { margin: 8px 0 12px; font: 400 28px/1.3 Georgia, serif; }
.lead { margin: 18px 0 30px; color: var(--muted); line-height: 1.9; }

.form { display: grid; gap: 12px; text-align: left; }
label { font-size: 14px; }
input {
  width: 100%;
  min-height: 52px;
  border: 1px solid var(--sand);
  border-radius: 13px;
  padding: 12px 15px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 16px;
}
input:focus { outline: 2px solid rgba(113,128,106,.28); border-color: var(--sage); }
#otp { text-align: center; font-size: 24px; letter-spacing: .28em; }

button {
  min-height: 52px;
  border: 0;
  border-radius: 999px;
  padding: 12px 20px;
  background: var(--sage);
  color: white;
  font: inherit;
  cursor: pointer;
}
button:disabled { cursor: wait; opacity: .62; }
.secondary { margin-top: 18px; background: transparent; color: var(--sage-dark); border: 1px solid var(--sage); }
.text-button { min-height: auto; background: transparent; color: var(--sage-dark); text-decoration: underline; }

.notice { margin: 0 0 20px; border-radius: 12px; padding: 12px 14px; background: #edf0e9; color: var(--sage-dark); font-size: 14px; line-height: 1.7; text-align: left; }
.notice.error { background: #f5e9e6; color: var(--error); }
.member-view { padding: 10px 0; }
.success-label { display: inline-block; margin: 0; color: var(--sage-dark); font-size: 13px; letter-spacing: .08em; }
.preparing { color: var(--muted); }
.footnote { margin: 28px 0 0; color: var(--muted); font-size: 12px; line-height: 1.7; }

[hidden] { display: none !important; }

@media (max-width: 420px) {
  .shell { padding: 18px 12px; }
  .card { padding: 36px 22px 28px; border-radius: 22px; }
  h1 { font-size: 27px; }
}