:root {
  color-scheme: light dark;
  --bg: #f4f7f5;
  --surface: #ffffff;
  --text: #14211d;
  --muted: #5d6d67;
  --primary: #175c49;
  --line: #dce6e1;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1714;
    --surface: #14231e;
    --text: #edf7f2;
    --muted: #a7bbb2;
    --primary: #72d2ad;
    --line: #294039;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Tahoma, Arial, sans-serif;
  line-height: 1.75;
}
main {
  width: min(880px, calc(100% - 32px));
  margin: 32px auto;
  padding: clamp(24px, 5vw, 48px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.08);
}
nav { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
nav a {
  color: var(--primary);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 14px;
  text-decoration: none;
  font-weight: 700;
}
h1 { margin: 0 0 6px; font-size: clamp(28px, 6vw, 42px); line-height: 1.25; }
h2 { margin-top: 32px; color: var(--primary); font-size: 21px; }
p, li { color: var(--text); }
.meta, footer { color: var(--muted); }
.english {
  direction: ltr;
  text-align: left;
  border-top: 1px solid var(--line);
  margin-top: 42px;
  padding-top: 24px;
}
a { color: var(--primary); }
footer { border-top: 1px solid var(--line); margin-top: 40px; padding-top: 18px; font-size: 14px; }

.confirmation-card { max-width: 560px; text-align: center; }
.confirmation-mark {
  align-items: center;
  background: color-mix(in srgb, var(--primary) 14%, transparent);
  border-radius: 18px;
  color: var(--primary);
  display: inline-flex;
  font-size: 28px;
  height: 58px;
  justify-content: center;
  margin-bottom: 14px;
  width: 58px;
}
.confirmation-amount { color: var(--primary); direction: ltr; font-size: clamp(30px, 8vw, 42px); font-weight: 900; margin: 22px 0 4px; }
.confirmation-expiry { color: var(--muted); font-size: 14px; }
.confirmation-note { background: var(--bg); border: 1px solid var(--line); border-radius: 14px; color: var(--text); font: inherit; margin-top: 18px; min-height: 86px; padding: 12px; resize: vertical; width: 100%; }
.confirmation-actions { display: grid; gap: 10px; grid-template-columns: 1fr 1fr; margin-top: 12px; }
.confirmation-button { border: 0; border-radius: 14px; cursor: pointer; font: inherit; font-weight: 800; min-height: 50px; padding: 12px; }
.confirmation-button:disabled { cursor: wait; opacity: .55; }
.confirmation-accept { background: var(--primary); color: #fff; }
.confirmation-dispute { background: #fce9e7; color: #9e3631; }
.confirmation-status { border-radius: 14px; margin-top: 20px; padding: 13px; }
.confirmation-status.info { background: color-mix(in srgb, var(--primary) 12%, transparent); }
.confirmation-status.error { background: #fce9e7; color: #9e3631; }
.confirmation-hidden { display: none !important; }
@media (max-width: 440px) { .confirmation-actions { grid-template-columns: 1fr; } }