:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #edf1ed;
  color: #15312b;
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: radial-gradient(circle at top right, #d6e6dc, transparent 38%), #edf1ed; }
button, input, select { font: inherit; }
button { cursor: pointer; border: 0; border-radius: 999px; padding: .75rem 1.05rem; background: #173c34; color: #fff; font-weight: 700; }
button:disabled { cursor: wait; opacity: .55; }
input, select { min-width: 0; flex: 1; border: 1px solid #b8c8bf; border-radius: 12px; padding: .85rem 1rem; background: #fff; }
form > label { margin-top: .8rem; }
.shell { width: min(900px, calc(100% - 2rem)); margin: 0 auto; padding: 4rem 0; }
header { margin-bottom: 2rem; }
.eyebrow, .step { margin: 0 0 .4rem; color: #4e7468; font-size: .75rem; font-weight: 800; letter-spacing: .16em; }
h1 { margin: 0; max-width: 700px; font-size: clamp(2.2rem, 7vw, 4.8rem); line-height: .98; letter-spacing: -.055em; }
header > p:last-child { max-width: 680px; color: #4b655d; line-height: 1.7; }
.card { margin-top: 1rem; padding: 1.4rem; border: 1px solid rgba(23, 60, 52, .12); border-radius: 20px; background: rgba(255, 255, 255, .82); box-shadow: 0 20px 50px rgba(24, 54, 45, .08); backdrop-filter: blur(10px); }
.section-heading { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
h2 { margin: 0; font-size: 1.25rem; }
.status, .result { min-height: 1.5rem; color: #4b655d; }
.status.ok, .result.ok { color: #147044; font-weight: 700; }
.status.error, .result.error { color: #a3342f; font-weight: 700; }
.records { display: grid; gap: .6rem; margin: 1rem 0 0; padding: 0; list-style: none; }
.records li { display: grid; gap: .2rem; padding: .85rem 1rem; border-radius: 12px; background: #f1f5f2; }
.records time { color: #6a7c76; font-size: .8rem; }
.form-row { display: flex; gap: .75rem; margin-top: .55rem; }
label { display: block; color: #4b655d; font-size: .9rem; font-weight: 700; }
@media (max-width: 600px) {
  .shell { padding: 2rem 0; }
  .card { padding: 1rem; }
  .form-row { align-items: stretch; flex-direction: column; }
}