:root {
  color-scheme: light;
  --ink: #1c2530;
  --muted: #5b6b7a;
  --card-bg: #ffffff;
  --page-bg: #f2f5f7;
  --accent: #0b5fa5;
  --pass: #1a7f37;
  --fail: #b3261e;
  --border: #d7dee4;
}

* {
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--page-bg);
  color: var(--ink);
  margin: 0;
  padding: 0 0 3rem 0;
}

header {
  background: var(--ink);
  color: #fff;
  padding: 1.5rem 2rem;
}

header h1 {
  margin: 0 0 0.4rem 0;
  font-size: 1.4rem;
}

.subtitle {
  margin: 0;
  color: #cfd9e2;
  max-width: 70rem;
  font-size: 0.95rem;
}

main {
  max-width: 70rem;
  margin: 1.5rem auto;
  padding: 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
}

.card h2 {
  margin-top: 0;
  font-size: 1.1rem;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
  margin: 1rem 0;
}

.controls label {
  display: flex;
  flex-direction: column;
  font-size: 0.85rem;
  color: var(--muted);
  gap: 0.25rem;
}

.controls input {
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.95rem;
}

.controls .checkbox-label {
  flex-direction: row;
  align-items: center;
  gap: 0.4rem;
}

.controls .checkbox-label input {
  width: auto;
}

.hidden {
  display: none !important;
}

.controls button {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 0.55rem 1rem;
  font-size: 0.9rem;
  cursor: pointer;
}

.controls button[data-report] {
  background: var(--muted);
}

.controls button:hover {
  opacity: 0.9;
}

.results {
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.results table {
  border-collapse: collapse;
  width: 100%;
}

.results td, .results th {
  padding: 0.3rem 0.6rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

.gate-pass {
  color: var(--pass);
  font-weight: 600;
}

.gate-fail {
  color: var(--fail);
  font-weight: 600;
}

canvas {
  border: 1px solid var(--border);
  border-radius: 4px;
  margin-top: 0.5rem;
  max-width: 100%;
}

.canvas-caption {
  font-size: 0.8rem;
  color: var(--muted);
  margin: 0.4rem 0 0.75rem 0;
  max-width: 40rem;
}

footer {
  max-width: 70rem;
  margin: 0 auto;
  padding: 0 2rem;
  color: var(--muted);
  font-size: 0.8rem;
}