:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #17202a;
  --muted: #657080;
  --line: #dde3ea;
  --accent: #0d6efd;
  --accent-dark: #084fb4;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 18px 64px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px;
  margin: 18px 0;
  box-shadow: 0 10px 30px rgba(23, 32, 42, 0.06);
}

.hero {
  background: linear-gradient(135deg, #ffffff, #edf4ff);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-weight: 700;
  margin: 0 0 8px;
}

h1, h2, h3 { margin-top: 0; }

.lead {
  color: var(--muted);
  max-width: 760px;
  font-size: 1.08rem;
}

.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 850px;
}

th, td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  font-size: 0.88rem;
  color: var(--muted);
  font-weight: 700;
}

tfoot td {
  font-weight: 800;
  background: #f9fbff;
}

.num { text-align: right; white-space: nowrap; }
.strong { font-weight: 800; }

.form label {
  display: block;
  font-weight: 700;
  margin-bottom: 8px;
}

.input-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

input {
  flex: 1 1 240px;
  font: inherit;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
}

button {
  border: 0;
  border-radius: 12px;
  padding: 13px 18px;
  font: inherit;
  font-weight: 800;
  color: white;
  background: var(--accent);
  cursor: pointer;
}

button:hover { background: var(--accent-dark); }

.result {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.result > div {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  background: #fbfcff;
}

.label {
  color: var(--muted);
  margin: 0 0 6px;
  font-size: 0.92rem;
}

.big {
  margin: 0;
  font-weight: 850;
  font-size: 1.45rem;
}

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

.qr-block {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  align-items: center;
  margin-top: 24px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
}

.qr-block img {
  width: 230px;
  height: 230px;
  image-rendering: crisp-edges;
}

code {
  display: block;
  margin-top: 10px;
  padding: 12px;
  background: #f1f3f6;
  border-radius: 10px;
  overflow-x: auto;
}