:root {
  --navy: #0b3d5c;
  --teal: #1a5f7a;
  --bg: #eef2f5;
  --card: #fff;
  --ok: #1a5f3c;
  --bad: #a32020;
  --muted: #5a6a75;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: #1a1a1a;
  line-height: 1.45;
}
header, footer {
  background: var(--navy);
  color: #fff;
  padding: 1.25rem 1.5rem;
  text-align: center;
}
header h1 { margin: 0 0 0.35rem; font-size: 1.45rem; }
.tagline { margin: 0; opacity: 0.9; font-size: 0.95rem; }
footer p { margin: 0; font-size: 0.85rem; opacity: 0.85; }

/* Scan-from-QR hero banner */
.scan-hero {
  max-width: 720px;
  margin: 0 auto;
  padding: 1rem 1rem 0;
}
.scan-hero-inner {
  border-radius: 14px;
  padding: 1.35rem 1.25rem 1.2rem;
  text-align: center;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.12);
}
.scan-hero.pending .scan-hero-inner {
  background: #eef4f8;
  border: 2px solid #c5d8e6;
  color: var(--navy);
}
.scan-hero.ok .scan-hero-inner {
  background: #e8f6ee;
  border: 3px solid #1a5f3c;
  color: var(--ok);
}
.scan-hero.bad .scan-hero-inner {
  background: #fdecea;
  border: 3px solid #a32020;
  color: var(--bad);
}
.scan-status {
  margin: 0 0 0.35rem;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  opacity: 0.85;
}
.scan-title {
  margin: 0;
  font-size: 1.55rem;
  font-weight: 800;
  line-height: 1.25;
}
.scan-meta {
  list-style: none;
  margin: 0.85rem 0 0;
  padding: 0;
  font-size: 0.95rem;
  font-weight: 500;
  opacity: 0.95;
}
.scan-meta li { margin: 0.2rem 0; }

.tabs {
  display: flex;
  gap: 0;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1rem;
  margin-top: 0.75rem;
}
.tab {
  flex: 1;
  border: none;
  background: #d5dee6;
  color: var(--navy);
  padding: 0.85rem 0.5rem;
  font-weight: 600;
  cursor: pointer;
  border-radius: 0 0 8px 8px;
}
.tab.active {
  background: var(--card);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 1.25rem 1rem 2.5rem;
}
.panel {
  background: var(--card);
  border-radius: 12px;
  padding: 1.25rem 1.35rem 1.5rem;
  box-shadow: 0 2px 12px rgba(11,61,92,0.08);
}
.panel[hidden] { display: none !important; }
.panel h2 { margin: 0 0 0.5rem; color: var(--navy); font-size: 1.15rem; }
.hint { color: var(--muted); font-size: 0.92rem; margin: 0 0 1rem; }
.hint code {
  font-size: 0.85em;
  background: #eef2f5;
  padding: 0.1em 0.35em;
  border-radius: 4px;
}
.muted { color: var(--muted); font-weight: 400; }

label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin: 0.75rem 0 0.35rem;
}
textarea, input[type="text"] {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1px solid #c5d0d8;
  border-radius: 8px;
  font: inherit;
}
textarea { resize: vertical; font-family: ui-monospace, Consolas, monospace; font-size: 0.85rem; }

button.primary {
  margin-top: 0.85rem;
  background: var(--navy);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 0.7rem 1.1rem;
  font-weight: 600;
  cursor: pointer;
}
button.primary:hover { background: var(--teal); }

hr { border: none; border-top: 1px solid #e2e8ec; margin: 1.5rem 0; }

details { margin: 0.75rem 0; }
summary { cursor: pointer; color: var(--teal); font-weight: 600; }
.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
  margin-top: 0.75rem;
}
.grid .full { grid-column: 1 / -1; }
@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; }
  .scan-title { font-size: 1.3rem; }
}

.result {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-radius: 8px;
  font-size: 0.95rem;
}
.result.ok { background: #e8f6ee; color: var(--ok); border: 1px solid #b7e0c5; }
.result.bad { background: #fdecea; color: var(--bad); border: 1px solid #f0c2c0; }
.result.info { background: #eef4f8; color: var(--navy); border: 1px solid #c5d8e6; }
.result strong { display: block; margin-bottom: 0.35rem; }
.result ul { margin: 0.35rem 0 0; padding-left: 1.2rem; }