:root {
  --bg: #f6f0e3;
  --panel: #fffaf1;
  --line: rgba(84, 62, 30, 0.14);
  --ink: #2e261b;
  --muted: #6c5b47;
  --primary: #2f6f4f;
  --primary-strong: #244f39;
  --radius-lg: 28px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow: 0 24px 46px rgba(84, 62, 30, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Trebuchet MS", "Gill Sans", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(47, 111, 79, 0.16), transparent 28%),
    linear-gradient(180deg, #fbf6ea 0%, var(--bg) 100%);
}

button,
input,
a {
  font: inherit;
}

.purchase-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.purchase-card {
  width: min(100%, 560px);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 32px;
  display: grid;
  gap: 18px;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
}

h1,
h2,
p {
  margin: 0;
}

.subtitle,
.message {
  color: var(--muted);
}

.purchase-form,
.field,
.success-card,
.loading-card {
  display: grid;
  gap: 12px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.field span {
  font-weight: 700;
}

input {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
}

.primary,
.ghost {
  border: none;
  border-radius: 999px;
  padding: 13px 18px;
  font-weight: 700;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
}

.primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  color: #fff;
}

.ghost {
  background: rgba(47, 111, 79, 0.1);
  color: var(--primary-strong);
}

.success-card {
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(47, 111, 79, 0.16);
  background: rgba(47, 111, 79, 0.08);
}

.loading-card {
  grid-template-columns: auto 1fr;
  align-items: center;
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(47, 111, 79, 0.18);
  background: rgba(47, 111, 79, 0.06);
}

.loading-copy {
  display: grid;
  gap: 4px;
}

.loading-copy strong {
  font-size: 1rem;
}

.loading-copy p {
  color: var(--muted);
}

.loading-spinner {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 3px solid rgba(47, 111, 79, 0.2);
  border-top-color: var(--primary);
  animation: purchase-spin 0.9s linear infinite;
}

.summary-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hidden {
  display: none !important;
}

.primary:disabled,
input:disabled {
  cursor: not-allowed;
  opacity: 0.7;
}

@keyframes purchase-spin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 640px) {
  .purchase-card {
    padding: 24px;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .actions {
    grid-template-columns: 1fr;
  }

  .loading-card {
    grid-template-columns: 1fr;
  }
}