:root {
  --navy: #0f172a; --ink: #1e293b; --sub: #475569; --line: #e2e8f0;
  --blue: #1d4ed8; --amber: #f59e0b; --amberbg: #fffbeb; --bg: #f8fafc;
  --normal: #1d4ed8; --abnormal: #b45309; --emergency: #b91c1c;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  padding: env(safe-area-inset-top) 0 env(safe-area-inset-bottom); }
header { max-width: 720px; margin: 0 auto; padding: 28px 18px 8px; }
h1 { font-size: 26px; font-weight: 800; color: var(--navy); margin: 0 0 6px; }
h2 { font-size: 20px; font-weight: 800; color: var(--navy); margin: 0 0 6px; }
.sub { color: var(--sub); margin: 0 0 14px; }
.fine { color: #94a3b8; font-size: 13px; margin-top: 12px; }
code { background: #eef2f7; padding: 1px 5px; border-radius: 4px; }
main { max-width: 720px; margin: 0 auto; padding: 8px 18px 60px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 20px; margin-bottom: 16px; }
.hidden { display: none !important; }

.field { display: block; margin-bottom: 14px; }
.field > span { display: block; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--sub); margin-bottom: 5px; }
.field.two { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 520px) { .field.two { grid-template-columns: 1fr; } }
input[type=text] { width: 100%; border: 1px solid var(--line); border-radius: 9px; padding: 9px 11px; font: inherit; color: var(--ink); background: #fff; }
input[type=file] { width: 100%; }

button { font: inherit; cursor: pointer; border-radius: 11px; padding: 12px 18px; border: 0; font-weight: 700; }
button.primary { background: var(--blue); color: #fff; width: 100%; }
button.primary:disabled { opacity: .5; cursor: not-allowed; }
button.secondary { background: #eef2ff; color: #3730a3; }
button.link { background: none; color: var(--sub); padding: 10px 0; font-weight: 600; }
.downloads { display: flex; gap: 10px; flex-wrap: wrap; }
.downloads button { flex: 1 1 auto; }

.msg { margin-top: 10px; min-height: 1em; }
.msg.err { color: var(--emergency); }
.msg.busy { color: var(--sub); }

.problems { background: var(--amberbg); border: 1px solid #fde68a; border-radius: 12px; padding: 12px 14px; margin-bottom: 16px; }
.problems h3 { margin: 0 0 6px; font-size: 14px; color: #92400e; }
.problems ul { margin: 0; padding-left: 18px; }
.problems li { font-size: 13px; color: #78350f; margin-bottom: 3px; }
.sev { font-weight: 800; text-transform: uppercase; font-size: 11px; }

.cat { margin: 18px 0 6px; font-size: 13px; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; }
.cat.normal { color: var(--normal); } .cat.abnormal { color: var(--abnormal); } .cat.emergency { color: var(--emergency); }
.cl { border: 1px solid var(--line); border-radius: 12px; padding: 12px; margin-bottom: 10px; }
.cl.flagged { border: 2px solid var(--amber); }
.cl .title { width: 100%; font-weight: 700; margin-bottom: 8px; }
.row { display: grid; grid-template-columns: 1fr 18px 1fr; gap: 6px; align-items: center; margin-bottom: 5px; }
.row .arrow { text-align: center; color: #94a3b8; }
.row input { padding: 7px 9px; font-size: 14px; }

.ack { display: flex; gap: 9px; align-items: flex-start; margin: 20px 0 8px; font-weight: 600; color: var(--ink); }
.ack input { margin-top: 3px; width: 18px; height: 18px; }
.disclaimer { color: #b45309; font-size: 13px; font-weight: 600; margin: 8px 0 14px; }