:root {
  --bg: #f5f7fb;
  --panel: #ffffff;
  --text: #1d2330;
  --muted: #5a6578;
  --line: #d7deeb;
  --accent: #0f62fe;
  --accent-dark: #0948bf;
  --good: #1f7a36;
  --warn: #9a5b00;
  --error: #b42318;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  color: var(--text);
  background: linear-gradient(140deg, #eef4ff 0%, #f8fbff 45%, #f5f7fb 100%);
}

.page {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1rem 3rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
  box-shadow: 0 8px 24px rgba(14, 33, 69, 0.06);
}

h1 {
  margin: 0 0 0.4rem;
  font-size: 1.5rem;
}

.subtitle {
  margin: 0 0 1rem;
  color: var(--muted);
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.95rem;
}

input[type="number"] {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.55rem 0.65rem;
  font-size: 1rem;
  color: var(--text);
  background: #fff;
}

input[type="number"]:focus {
  outline: 2px solid #bad2ff;
  outline-offset: 1px;
}

.categories {
  margin: 1rem 0;
  padding: 0.75rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  display: grid;
  gap: 0.5rem;
}

.categories legend {
  padding: 0 0.25rem;
  font-weight: 600;
}

.categories label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.95rem;
}

button {
  border: 0;
  background: var(--accent);
  color: #fff;
  border-radius: 10px;
  padding: 0.6rem 0.9rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

button:hover {
  background: var(--accent-dark);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.75;
}

.status {
  min-height: 1.4rem;
  margin: 0.85rem 0 0;
  font-size: 0.95rem;
}

.status.good {
  color: var(--good);
}

.status.warn {
  color: var(--warn);
}

.status.error {
  color: var(--error);
}

.results-title {
  margin: 1.4rem 0 0.7rem;
}

.results {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.8rem;
}

.card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.85rem;
  background: #fff;
}

.card h3 {
  margin: 0 0 0.45rem;
  font-size: 1.05rem;
}

.card .meta {
  margin: 0 0 0.45rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.card p {
  margin: 0;
  white-space: pre-line;
  line-height: 1.35;
}

@media (max-width: 560px) {
  .panel {
    padding: 0.85rem;
  }
}