:root {
  color: #18212f;
  background: #f5f7fb;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  margin: 0;
}

button,
input,
select,
textarea {
  font: inherit;
}

.shell {
  min-height: 100vh;
  padding: 32px;
}

.hero {
  align-items: end;
  display: flex;
  gap: 24px;
  justify-content: space-between;
  margin: 0 auto 24px;
  max-width: 1180px;
}

.eyebrow {
  color: #2362d1;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  margin: 0 0 8px;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  font-size: 38px;
  line-height: 1.05;
  margin-bottom: 12px;
}

h2 {
  font-size: 18px;
}

.status {
  background: #e8edf6;
  border: 1px solid #d5deef;
  border-radius: 8px;
  color: #536173;
  min-width: 180px;
  padding: 10px 12px;
  text-align: center;
}

.status.ok {
  background: #e5f7ee;
  border-color: #b9e6ca;
  color: #176b3a;
}

.status.error {
  background: #fff0ef;
  border-color: #f0c3be;
  color: #a5322a;
}

.workspace {
  display: grid;
  gap: 20px;
  grid-template-columns: minmax(320px, 0.9fr) minmax(360px, 1.1fr);
  margin: 0 auto;
  max-width: 1180px;
}

.panel {
  background: #ffffff;
  border: 1px solid #dbe2ee;
  border-radius: 8px;
  box-shadow: 0 16px 40px rgba(34, 51, 84, 0.08);
  padding: 22px;
}

.input-panel {
  display: grid;
  gap: 16px;
}

label {
  color: #465365;
  display: grid;
  font-size: 13px;
  font-weight: 700;
  gap: 8px;
}

input,
select,
textarea {
  border: 1px solid #cfd8e6;
  border-radius: 6px;
  box-sizing: border-box;
  color: #18212f;
  padding: 10px 12px;
  width: 100%;
}

textarea {
  min-height: 86px;
  resize: vertical;
}

.grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

button {
  background: #2362d1;
  border: 0;
  border-radius: 6px;
  color: #ffffff;
  cursor: pointer;
  font-weight: 700;
  padding: 11px 14px;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.65;
}

.answer {
  background: #f8fafc;
  border: 1px solid #dbe2ee;
  border-radius: 8px;
  line-height: 1.55;
  margin-bottom: 20px;
  padding: 14px;
}

.muted {
  color: #66768a;
}

.error {
  color: #a5322a;
}

.stack {
  display: grid;
  gap: 10px;
  margin-bottom: 20px;
}

.evidence-card {
  border: 1px solid #dbe2ee;
  border-radius: 8px;
  padding: 12px;
}

.evidence-card small {
  color: #66768a;
  display: block;
  margin: 4px 0 8px;
}

.trace {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.trace span {
  background: #eaf1ff;
  border: 1px solid #c9dafd;
  border-radius: 999px;
  color: #244f9a;
  padding: 6px 10px;
}

.notes {
  color: #536173;
  line-height: 1.5;
  padding-left: 20px;
}

@media (max-width: 820px) {
  .shell {
    padding: 18px;
  }

  .hero,
  .workspace,
  .grid {
    grid-template-columns: 1fr;
  }

  .hero {
    align-items: stretch;
    display: grid;
  }
}