:root {
  --bg: #EFE7D6;
  --green: #2F5D3A;
  --green-dark: #244A2D;
  --ink: #1F1F1F;
  --muted: #5b5b52;
  --rule: #cdc4ad;
  --card: #fbf7ec;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans Tamil", sans-serif;
  font-weight: 700;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  position: relative;
  isolation: isolate;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: url("/trans_bg.png") center center / min(80vmin, 560px) no-repeat;
  opacity: 0.15;
  z-index: -1;
  pointer-events: none;
}

.wrap {
  max-width: 560px;
  margin: 0 auto;
  padding: 40px 20px 32px;
  text-align: center;
  animation: fade-in 0.6s ease-out both;
}

@keyframes fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: none; }
}

.cover {
  display: block;
  width: 100%;
  max-width: 560px;
  height: auto;
  margin: 0 auto 8px;
  border-radius: 10px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.rule {
  border: 0;
  border-top: 1px solid var(--rule);
  width: 60px;
  margin: 24px auto;
}

.status {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 600;
  color: var(--green-dark);
}

.sub {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.5;
}

.pay-prompt {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}
.pay-link {
  color: var(--green);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.pay-link:hover { color: var(--green-dark); }

.pay[hidden] { display: none; }

.pay {
  background: rgba(251, 247, 236, 0.92);
  backdrop-filter: blur(2px);
  border: 1px solid var(--rule);
  border-radius: 14px;
  padding: 22px 18px 20px;
  margin: 0 auto 28px;
}

.pay h3 {
  margin: 0 0 4px;
  font-size: 16px;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.pay-caption {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 13px;
}

.qr {
  display: inline-block;
  padding: 10px;
  background: #fff;
  border-radius: 10px;
  border: 1px solid var(--rule);
  margin-bottom: 18px;
  min-width: 192px;
  min-height: 192px;
}
.qr img, .qr canvas { display: block; }

.pay-btn {
  display: inline-block;
  background: var(--green);
  color: #fff;
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 16px;
  letter-spacing: 0.02em;
  box-shadow: 0 2px 0 var(--green-dark);
  transition: transform 0.08s ease, box-shadow 0.08s ease, background 0.2s ease;
}
.pay-btn:hover { background: var(--green-dark); }
.pay-btn:active { transform: translateY(1px); box-shadow: 0 1px 0 var(--green-dark); }

.upi-id {
  margin-top: 16px;
  font-size: 14px;
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}
.upi-label { color: var(--muted); }
.upi-id code {
  background: #fff;
  border: 1px solid var(--rule);
  padding: 4px 8px;
  border-radius: 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
}
.copy-btn {
  border: 1px solid var(--rule);
  background: #fff;
  color: var(--ink);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.copy-btn:hover { border-color: var(--green); color: var(--green); }
.copy-btn.copied { background: var(--green); color: #fff; border-color: var(--green); }

.foot {
  margin-top: 8px;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

@media (min-width: 640px) {
  .wrap { padding: 64px 24px 40px; }
  .status { font-size: 20px; }
}