:root {
  --pay-bg: #f5f6f8;
  --pay-surface: #ffffff;
  --pay-border: #e4e7ec;
  --pay-text: #101828;
  --pay-muted: #667085;
  --pay-accent: #0a2540;
  --pay-focus: rgba(10, 37, 64, 0.14);
  --pay-danger: #b42318;
  --pay-danger-bg: #fef3f2;
  --pay-success: #067647;
  --pay-success-bg: #ecfdf3;
}

html, body { min-height: 100%; }

body {
  margin: 0;
  background: var(--pay-bg);
  color: var(--pay-text);
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

/* Centered single-column shell */
.pay-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}

.pay-card {
  width: 100%;
  max-width: 420px;
  background: var(--pay-surface);
  border: 1px solid var(--pay-border);
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 12px 32px rgba(16, 24, 40, 0.06);
}

.pay-label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--pay-muted);
}

/* The amount field: currency code + large figure in one clean control */
.pay-amount {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--pay-border);
  border-radius: 12px;
  background: #fff;
  transition: border-color .15s, box-shadow .15s;
}
.pay-amount:focus-within {
  border-color: var(--pay-accent);
  box-shadow: 0 0 0 4px var(--pay-focus);
}
.pay-amount .pay-currency {
  font-size: 1rem;
  font-weight: 600;
  color: var(--pay-muted);
}
.pay-amount input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  padding: 0;
  font-size: 2rem;
  line-height: 1.2;
  font-weight: 650;
  letter-spacing: -0.01em;
  color: var(--pay-text);
  text-align: right;
  font-variant-numeric: tabular-nums;
  -moz-appearance: textfield;
}
.pay-amount input::-webkit-outer-spin-button,
.pay-amount input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.pay-amount input:read-only { color: var(--pay-muted); }

.pay-hint {
  margin: 8px 2px 0;
  font-size: 0.8125rem;
  color: var(--pay-muted);
}

#paypal-buttons { margin-top: 12px; min-height: 48px; }
.pay-btn-slot { margin-bottom: 12px; }

.pay-section {
  margin: 24px 2px 0;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--pay-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.pay-or {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 8px 0 16px;
  font-size: 0.75rem;
  color: var(--pay-muted);
  text-transform: uppercase;
}
.pay-or::before, .pay-or::after { content: ""; flex: 1; height: 1px; background: #e4e7ec; }

.pay-alt-btn {
  display: block;
  width: 100%;
  padding: 12px 14px;
  margin-top: 8px;
  border: 1px solid #d0d5dd;
  border-radius: 8px;
  background: #fff;
  color: inherit;
  font: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}
.pay-alt-btn:hover:not(:disabled) { background: #f9fafb; }
.pay-alt-btn:disabled { opacity: 0.6; cursor: default; }
.pay-alt-btn.primary { background: #111; border-color: #111; color: #fff; }
.pay-alt-btn.primary:hover { background: #222; }

.pay-link-input {
  display: block;
  width: 100%;
  padding: 10px 12px;
  margin-top: 8px;
  border: 1px solid #d0d5dd;
  border-radius: 8px;
  font: inherit;
  font-size: 0.875rem;
  box-sizing: border-box;
}

.pay-hint-center { text-align: center; }
.pay-invoice { margin-top: 8px; }
.pay-invoice-actions { margin-top: 4px; }

.pay-secure {
  margin: 20px 0 0;
  text-align: center;
  font-size: 0.75rem;
  color: var(--pay-muted);
}

.pay-alert {
  margin: 20px 0 0;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 0.875rem;
  line-height: 1.4;
  color: var(--pay-danger);
  background: var(--pay-danger-bg);
  border: 1px solid #fecdca;
}

.pay-env {
  display: inline-block;
  margin-bottom: 20px;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #93370d;
  background: #fffaeb;
  border: 1px solid #fedf89;
}

/* Result pages */
.pay-result { text-align: center; }
.pay-badge {
  width: 56px; height: 56px;
  margin: 0 auto 20px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 1.5rem; font-weight: 700;
}
.pay-badge.ok { color: var(--pay-success); background: var(--pay-success-bg); }
.pay-badge.fail { color: var(--pay-danger); background: var(--pay-danger-bg); }
.pay-result h1 { font-size: 1.25rem; font-weight: 650; margin: 0 0 6px; }
.pay-result .pay-sub { margin: 0; font-size: 0.9375rem; color: var(--pay-muted); }
.pay-total { margin: 24px 0 4px; font-size: 2.25rem; font-weight: 700; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }

.pay-details { margin: 24px 0 0; padding: 0; text-align: left; border-top: 1px solid var(--pay-border); }
.pay-details > div {
  display: flex; justify-content: space-between; gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--pay-border);
  font-size: 0.875rem;
}
.pay-details dt { margin: 0; font-weight: 500; color: var(--pay-muted); }
.pay-details dd { margin: 0; text-align: right; word-break: break-all; font-weight: 500; }

.pay-btn {
  display: block; width: 100%;
  margin-top: 24px;
  padding: 12px 16px;
  border: 0; border-radius: 10px;
  font-size: 0.9375rem; font-weight: 600;
  text-align: center; text-decoration: none;
  color: #fff; background: var(--pay-accent);
  transition: opacity .15s;
}
.pay-btn:hover { color: #fff; opacity: .92; }
.pay-link {
  display: block; margin-top: 16px;
  font-size: 0.875rem; text-align: center;
  color: var(--pay-muted); text-decoration: none;
}
.pay-link:hover { color: var(--pay-text); }

@media (max-width: 480px) {
  .pay-card { padding: 24px 20px; border-radius: 14px; }
  .pay-amount input { font-size: 1.75rem; }
}

/* Live fee breakdown under the amount field */
.pay-summary { margin: 20px 0 0; padding: 0; }
.pay-summary > div {
  display: flex; justify-content: space-between; gap: 16px;
  padding: 6px 0; font-size: 0.875rem; color: var(--pay-muted);
}
.pay-summary dt, .pay-summary dd { margin: 0; font-weight: 500; font-variant-numeric: tabular-nums; }
.pay-summary .total {
  margin-top: 6px; padding-top: 12px;
  border-top: 1px solid var(--pay-border);
  font-size: 1rem; font-weight: 650; color: var(--pay-text);
}