:root {
  --green: #173a31;
  --green-deep: #0f2b24;
  --cream: #f4f0e7;
  --paper: #fbf8f1;
  --ink: #1b2622;
  --muted: #66746f;
  --warm: #e7b979;
  --line: rgba(27, 38, 34, .17);
  --serif: Georgia, 'Times New Roman', serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }
html { background: var(--green-deep); scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100svh;
  background:
    radial-gradient(circle at 12% 18%, rgba(231, 185, 121, .12), transparent 27rem),
    var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
a { color: inherit; }
.skip-link {
  position: fixed;
  z-index: 10;
  top: -5rem;
  left: 1rem;
  padding: .75rem 1rem;
  background: white;
}
.skip-link:focus { top: 1rem; }

.payment-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 6rem;
  padding: 0 clamp(1.25rem, 6vw, 5.5rem);
  background: var(--green-deep);
  color: white;
}
.brand { display: inline-flex; align-items: center; gap: .8rem; text-decoration: none; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 2.65rem;
  aspect-ratio: 1;
  border: 1px solid currentColor;
  border-radius: 50% 50% 46% 54% / 49% 48% 52% 51%;
  color: var(--warm);
  font: italic 1.4rem/1 var(--serif);
}
.brand-copy { display: grid; line-height: 1.05; }
.brand-copy strong { font: 1.25rem/1 var(--serif); letter-spacing: .02em; }
.brand-copy small { margin-top: .32rem; font-size: .6rem; letter-spacing: .2em; text-transform: uppercase; opacity: .72; }
.secure-note { font-size: .65rem; font-weight: 650; letter-spacing: .2em; text-transform: uppercase; opacity: .72; }

.payment-shell {
  display: grid;
  grid-template-columns: minmax(16rem, .72fr) minmax(32rem, 1.15fr);
  gap: clamp(3rem, 8vw, 9rem);
  width: min(92rem, 100%);
  margin: 0 auto;
  padding: clamp(4rem, 8vw, 7.5rem) clamp(1.25rem, 6vw, 5.5rem);
}
.welcome { align-self: start; position: sticky; top: 3rem; }
.eyebrow, .preference {
  margin: 0 0 1rem;
  color: var(--green);
  font-size: .66rem;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
}
.welcome h1 {
  margin: 0;
  font: 400 clamp(3.4rem, 6.6vw, 6.7rem)/.93 var(--serif);
  letter-spacing: -.045em;
}
.welcome h1 em { color: #ad654f; font-weight: 400; }
.welcome > p:last-child { max-width: 30rem; margin: 2rem 0 0; color: var(--muted); }

.payment-options { border-top: 1px solid var(--line); }
.payment-card { padding: clamp(2rem, 5vw, 3.7rem) 0; border-bottom: 1px solid var(--line); }
.card-heading { display: grid; grid-template-columns: 2.8rem 1fr; gap: 1rem; align-items: start; }
.card-number { padding-top: .2rem; color: #ad654f; font: italic .85rem var(--serif); }
.preference { margin-bottom: .45rem; color: var(--muted); }
.payment-card-preferred .preference { color: #8d3c37; }
.payment-card h2 { margin: 0; font: 400 clamp(2.35rem, 4vw, 3.7rem)/1 var(--serif); letter-spacing: -.035em; }
.card-intro { max-width: 36rem; margin: 1.3rem 0 1.8rem 3.8rem; color: var(--muted); }
.action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: calc(100% - 3.8rem);
  min-height: 4.2rem;
  margin-left: 3.8rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--green);
  cursor: pointer;
  gap: 1rem;
  text-decoration: none;
  font-size: .72rem;
  font-weight: 750;
  letter-spacing: .14em;
  text-transform: uppercase;
  transition: background .2s, color .2s, transform .2s;
}
.action > span:first-child { min-width: 0; }
.action-arrow { flex: 0 0 auto; }
.action:hover { transform: translateY(-2px); }
.action:focus-visible, .copy-button:focus-visible, .brand:focus-visible, .payment-footer a:focus-visible { outline: 3px solid var(--warm); outline-offset: 3px; }
.action-primary { background: var(--green); color: white; }
.action-secondary { background: transparent; color: var(--green); }
.action-secondary:hover { background: var(--green); color: white; }
.action-arrow { font: 1.1rem var(--serif); }

.bank-details { margin: 1rem 0 0 3.8rem; padding: clamp(1.25rem, 3.5vw, 2rem); background: var(--cream); border: 1px solid var(--line); }
.bank-instruction { margin: 0 0 1.3rem; font: 1.08rem/1.45 var(--serif); }
.bank-details dl { margin: 0; }
.bank-details dl > div { display: grid; grid-template-columns: 8.5rem 1fr; gap: 1rem; align-items: center; padding: .9rem 0; border-top: 1px solid var(--line); }
.bank-details dt { color: var(--muted); font-size: .62rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.bank-details dd { display: flex; align-items: center; justify-content: space-between; gap: .8rem; margin: 0; font: 1.05rem var(--serif); letter-spacing: .03em; }
.copy-button { border: 0; padding: .35rem .2rem; background: transparent; color: var(--green); cursor: pointer; font-size: .62rem; font-weight: 750; letter-spacing: .11em; text-transform: uppercase; }
.copy-button:hover { text-decoration: underline; text-underline-offset: .25rem; }
.confirmation-note, .provider-note { color: var(--muted); font-size: .68rem; line-height: 1.55; }
.confirmation-note { margin: 1.2rem 0 0; }
.provider-note { margin: 1rem 0 0 3.8rem; }

.payment-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 2rem clamp(1.25rem, 6vw, 5.5rem);
  background: var(--green-deep);
  color: rgba(255,255,255,.72);
  font-size: .72rem;
}
.payment-footer p { margin: 0; }
.payment-footer a { color: white; font-size: .62rem; font-weight: 700; letter-spacing: .14em; text-decoration: none; text-transform: uppercase; }
.copy-status { position: fixed; left: 50%; bottom: 1.5rem; z-index: 20; translate: -50% 1rem; padding: .65rem 1rem; background: var(--green-deep); color: white; opacity: 0; pointer-events: none; font-size: .72rem; transition: opacity .2s, translate .2s; }
.copy-status.show { opacity: 1; translate: -50% 0; }
.noscript-note { padding: 1rem; background: #fff0cf; text-align: center; }

@media (max-width: 800px) {
  .payment-header { min-height: 5rem; }
  .payment-shell { grid-template-columns: 1fr; gap: 4rem; padding-top: 3.5rem; }
  .welcome { position: static; }
  .welcome h1 { font-size: clamp(3.2rem, 15vw, 5.6rem); }
  .payment-footer { align-items: flex-start; flex-direction: column; gap: .8rem; }
}

@media (max-width: 520px) {
  .brand-copy small, .secure-note { display: none; }
  .payment-shell { padding-inline: 1.15rem; }
  .card-heading { grid-template-columns: 2rem 1fr; }
  .card-intro, .action, .bank-details, .provider-note { width: auto; margin-left: 3rem; }
  .bank-details { padding: 1.15rem; }
  .bank-details dl > div { grid-template-columns: 1fr; gap: .2rem; }
  .bank-details dd { align-items: flex-end; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}