:root {
  color-scheme: light dark;
  --bg: #f4f5f2;
  --surface: #e9ebe6;
  --ink: #1a211e;
  --muted: #535d58;
  --accent: #0f6e5a;
  --accent-ink: #f3faf7;
  --ring: #0f6e5a;
  --line: #d3d8d2;
  --paid: #0f6e5a;
  --partial: #8a5a00;
  --error: #a3322a;
  --qr-bg: #f7f8f6;
  --qr-ink: #141a17;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131816;
    --surface: #1b211e;
    --ink: #e6ebe8;
    --muted: #a3ada8;
    --accent: #5fcfb1;
    --accent-ink: #0b211b;
    --ring: #7fdcc2;
    --line: #2a322e;
    --paid: #6fd9b8;
    --partial: #e7b75b;
    --error: #f08b80;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 16px/1.4 var(--sans);
}

.bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 32rem;
  margin: 0 auto;
  padding: 16px;
}

.brand {
  margin: 0;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.network {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

main {
  max-width: 32rem;
  margin: 0 auto;
  padding: 0 16px 64px;
}

footer.page {
  max-width: 32rem;
  margin: 0 auto;
  padding: 0 16px 32px;
  color: var(--muted);
  font-size: 14px;
}

footer.page a {
  color: var(--accent);
}

h1 {
  margin: 16px 0 8px;
  font-size: 28px;
  line-height: 1.2;
  letter-spacing: -0.015em;
}

h2 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}

p {
  margin: 0;
}

.intro {
  margin-bottom: 16px;
  max-width: 34rem;
}

.muted {
  color: var(--muted);
}

.mono {
  font-family: var(--mono);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.stack,
.charge {
  display: grid;
  gap: 8px;
  margin-top: 32px;
}

label {
  font-size: 14px;
}

input {
  width: 100%;
  min-width: 0;
  min-height: 44px;
  padding: 8px 16px;
  border: 0;
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  font: 400 16px/1.4 var(--sans);
}

input.mono {
  font-family: var(--mono);
  font-size: 15px;
}

input.amount {
  min-height: 80px;
  font: 700 48px/1.2 var(--mono);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  margin-bottom: 16px;
}

button {
  min-width: 96px;
  min-height: 44px;
  padding: 8px 16px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  font: 600 16px/1.4 var(--sans);
  cursor: pointer;
  transition: transform 120ms ease-out, opacity 120ms ease-out;
}

button.big {
  min-height: 56px;
  font-size: 18px;
  margin-top: 8px;
}

button:active:not(:disabled) {
  transform: scale(0.96);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

button.quiet {
  background: transparent;
  color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--line);
}

button.link {
  min-width: 0;
  padding: 8px 0;
  background: transparent;
  color: var(--muted);
  font-weight: 400;
  text-decoration: underline;
}

button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--ring);
}

.error {
  min-height: 1.4em;
  color: var(--error);
  font-size: 14px;
}

.orders {
  margin-top: 32px;
}

.orders-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 8px;
}

.orders-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.orders-list li {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 4px 16px;
  align-items: baseline;
  padding: 16px 0;
  box-shadow: inset 0 -1px 0 var(--line);
}

.order-id {
  font: 400 14px/1.4 var(--mono);
  color: var(--muted);
}

.order-note {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.order-total {
  font: 600 16px/1.4 var(--mono);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.order-status {
  grid-column: 2 / 4;
  font-size: 14px;
  color: var(--muted);
}

.order-status[data-status="paid"],
.order-status[data-status="swept"] {
  color: var(--paid);
}

.order-status[data-status="partial"] {
  color: var(--partial);
}

.sweep {
  display: grid;
  gap: 8px;
  margin-top: 16px;
}

.footer-links {
  margin-top: 32px;
}

.order-amount {
  font: 700 56px/1.1 var(--mono);
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  margin: 8px 0;
}

.qr {
  margin: 16px 0;
  padding: 16px;
  border-radius: 16px;
  background: var(--qr-bg);
  color: var(--qr-ink);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}

.qr svg {
  grid-area: 1 / 1;
  width: 100%;
  height: 100%;
  transition: opacity 200ms ease-out, transform 200ms ease-out;
}

.qr[data-paid] svg {
  opacity: 0;
  transform: scale(0.96);
}

.qr[data-paid]::after {
  content: "Paid";
  grid-area: 1 / 1;
  color: #0f6e5a;
  font: 700 64px/1 var(--sans);
  letter-spacing: -0.03em;
  animation: arrive 200ms ease-out;
}

@keyframes arrive {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
}

input::placeholder {
  color: var(--muted);
  opacity: 0.6;
}

.status {
  min-height: 3em;
  font-size: 20px;
  font-weight: 600;
}

.status[data-status="paid"] {
  color: var(--paid);
}

.status[data-status="partial"] {
  color: var(--partial);
}

.status[data-status="error"] {
  color: var(--error);
}

.status a {
  color: inherit;
  font-size: 16px;
  font-weight: 400;
}

.manual {
  margin-top: 16px;
  padding: 16px;
  border-radius: 8px;
  background: var(--surface);
}

.manual summary {
  min-height: 24px;
  cursor: pointer;
  border-radius: 4px;
}

.manual p {
  margin-top: 8px;
}

.address {
  overflow-wrap: anywhere;
  font-size: 15px;
}

.order-actions {
  display: grid;
  margin-top: 16px;
}