:root {
  color-scheme: light;
  font-family: Inter, Segoe UI, system-ui, sans-serif;
  background: #f5f7fb;
  color: #1f2937;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
}

.shell {
  width: min(1120px, calc(100% - 32px));
  margin: 40px auto;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 20px;
}

.panel {
  background: #fff;
  border: 1px solid #d8dee9;
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 10px 30px rgba(31, 41, 55, 0.06);
}

.eyebrow {
  margin: 0 0 8px;
  color: #0f766e;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

h1, h2 {
  margin: 0;
  line-height: 1.15;
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.15rem;
}

.lead {
  margin: 12px 0 0;
  color: #4b5563;
}

.notice {
  margin: 22px 0;
  padding: 12px 14px;
  border: 1px solid #99f6e4;
  border-radius: 8px;
  background: #ecfeff;
  color: #115e59;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

form {
  display: grid;
  gap: 16px;
}

label {
  display: grid;
  gap: 8px;
  font-weight: 700;
}

input, select {
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  padding: 11px 12px;
  font: inherit;
  background: #fff;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}

.checkbox input {
  width: auto;
}

.button {
  appearance: none;
  border: 0;
  border-radius: 8px;
  padding: 11px 16px;
  background: #2563eb;
  color: #fff;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.button.secondary {
  background: #0f766e;
}

.results {
  min-height: 520px;
}

pre {
  margin: 16px 0 0;
  min-height: 420px;
  max-height: 70vh;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  background: #111827;
  color: #e5e7eb;
  border-radius: 8px;
  padding: 16px;
}

@media (max-width: 860px) {
  .shell {
    grid-template-columns: 1fr;
    margin: 20px auto;
  }
}