:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #18181b;
  background: #f8fafc;
  --blue: #2563eb;
  --blue-soft: #eff6ff;
  --green: #059669;
  --green-soft: #ecfdf5;
  --border: #e4e4e7;
  --muted: #71717a;
  --surface: rgba(255, 255, 255, 0.96);
}

* { box-sizing: border-box; }
html { min-width: 320px; scroll-behavior: smooth; }
body { margin: 0; min-height: 100vh; }
button, input { font: inherit; }

.page-shell {
  min-height: 100vh;
  padding: 28px 20px;
  background:
    radial-gradient(circle at 8% 0%, rgba(219, 234, 254, 0.82), transparent 31%),
    radial-gradient(circle at 94% 12%, rgba(224, 242, 254, 0.72), transparent 25%),
    linear-gradient(180deg, #f8fbff 0%, #ffffff 46%, #f8fafc 100%);
}

.page-container {
  width: min(1040px, 100%);
  margin: 0 auto;
  display: grid;
  gap: 22px;
}

.hero-card,
.query-card,
.details-card,
.invoice-card,
.summary-card {
  background: var(--surface);
  border: 1px solid rgba(228, 228, 231, 0.9);
  box-shadow: 0 18px 42px rgba(15, 23, 42, 0.06);
}

.hero-card {
  padding: 34px;
  border-radius: 28px;
}

.eyebrow {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--blue-soft);
  color: var(--blue);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.08em;
}

h1, h2, p { margin-top: 0; }
.hero-card h1 {
  margin: 16px 0 10px;
  max-width: 820px;
  font-size: clamp(30px, 5vw, 46px);
  line-height: 1.12;
  letter-spacing: -0.035em;
}
.hero-card p {
  margin-bottom: 0;
  max-width: 860px;
  color: #52525b;
  font-size: 16px;
  line-height: 1.75;
}

.query-card {
  padding: 26px;
  border-radius: 24px;
}
.section-heading h2,
.details-heading h2,
.invoice-copy h2 { margin-bottom: 6px; font-size: 20px; }
.section-heading p,
.details-heading p,
.invoice-copy p { margin-bottom: 0; color: var(--muted); line-height: 1.55; }
.query-form { display: grid; grid-template-columns: 1fr auto; gap: 12px; margin-top: 18px; }
.input-wrap { position: relative; }
.input-wrap svg {
  position: absolute;
  top: 50%;
  left: 15px;
  width: 20px;
  height: 20px;
  transform: translateY(-50%);
  fill: none;
  stroke: #a1a1aa;
  stroke-width: 2;
  stroke-linecap: round;
}
.input-wrap input {
  width: 100%;
  height: 50px;
  padding: 0 16px 0 46px;
  border: 1px solid #d4d4d8;
  border-radius: 14px;
  background: #fff;
  color: #18181b;
  outline: none;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}
.input-wrap input:focus {
  border-color: #60a5fa;
  box-shadow: 0 0 0 4px rgba(96, 165, 250, 0.16);
}
.query-form button {
  height: 50px;
  padding: 0 22px;
  border: 0;
  border-radius: 14px;
  background: #18181b;
  color: white;
  font-weight: 700;
  cursor: pointer;
  transition: transform 160ms ease, background 160ms ease;
}
.query-form button:hover { background: #27272a; transform: translateY(-1px); }
.error-message { min-height: 20px; margin-top: 10px; color: #b45309; font-size: 14px; }

.results { display: grid; gap: 18px; }
.results[hidden] { display: none; }
.network-heading { display: flex; justify-content: space-between; align-items: end; gap: 18px; padding: 4px 4px 0; }
.network-heading span { color: var(--muted); font-size: 11px; font-weight: 750; letter-spacing: 0.08em; }
.network-heading h2 { margin: 5px 0 0; font-size: 26px; }
.network-id-badge,
.count-badge {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 5px 11px;
  border-radius: 999px;
  background: #f4f4f5;
  color: #52525b;
  font-size: 13px;
  font-weight: 700;
}
.summary-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.summary-card { min-width: 0; display: grid; grid-template-columns: auto 1fr; gap: 16px; padding: 24px; border-radius: 22px; }
.summary-icon { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 14px; font-size: 18px; font-weight: 800; }
.summary-icon-blue { color: var(--blue); background: var(--blue-soft); }
.summary-icon-green { color: var(--green); background: var(--green-soft); }
.summary-card p { margin-bottom: 7px; color: var(--muted); font-size: 14px; font-weight: 650; }
.summary-card strong { display: block; margin-bottom: 7px; font-size: clamp(30px, 5vw, 42px); letter-spacing: -0.035em; }
.summary-card span { color: var(--muted); font-size: 13px; line-height: 1.55; }

.details-card { overflow: hidden; border-radius: 24px; }
.details-heading { display: flex; justify-content: space-between; align-items: start; gap: 20px; padding: 24px 26px; border-bottom: 1px solid var(--border); }
.table-scroll { overflow-x: auto; }
table { width: 100%; min-width: 680px; border-collapse: collapse; }
th, td { padding: 15px 20px; border-bottom: 1px solid #f0f0f2; text-align: left; font-size: 14px; }
th { background: #fafafa; color: #71717a; font-size: 12px; font-weight: 750; letter-spacing: 0.025em; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: #fafcff; }
td:first-child { color: #18181b; font-weight: 650; }
.numeric { text-align: right; font-variant-numeric: tabular-nums; }

.invoice-card { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 18px; padding: 24px 26px; border-radius: 24px; }
.invoice-icon { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 15px; background: var(--blue-soft); color: var(--blue); }
.invoice-icon svg,
.invoice-card a svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.invoice-copy h2 { margin-bottom: 4px; }
.invoice-card a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 16px;
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  background: var(--blue-soft);
  color: #1d4ed8;
  font-size: 14px;
  font-weight: 750;
  text-decoration: none;
  white-space: nowrap;
  transition: background 160ms ease, transform 160ms ease;
}
.invoice-card a:hover { background: #dbeafe; transform: translateY(-1px); }
footer { padding: 2px 0 10px; color: #a1a1aa; text-align: center; font-size: 12px; }

@media (max-width: 760px) {
  .page-shell { padding: 16px 12px; }
  .hero-card { padding: 26px 22px; border-radius: 22px; }
  .hero-card h1 { font-size: 31px; }
  .query-form { grid-template-columns: 1fr; }
  .summary-grid { grid-template-columns: 1fr; }
  .network-heading { align-items: start; flex-direction: column; }
  .invoice-card { grid-template-columns: auto 1fr; }
  .invoice-card a { grid-column: 1 / -1; justify-content: center; }
}

@media (max-width: 460px) {
  .hero-card h1 { font-size: 27px; }
  .query-card, .summary-card, .details-heading, .invoice-card { padding: 20px; }
  .summary-card { grid-template-columns: 1fr; }
}