:root {
  color-scheme: dark;
  --bg: #0f1117;
  --panel: #171a23;
  --border: #2a2e3a;
  --text: #d8dce6;
  --muted: #7b8296;
  --accent: #5fd0a8;
  --danger: #e0685f;
  --mono: "SF Mono", "Fira Code", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  margin: 0;
  padding: 0 1.5rem 3rem;
}

header {
  padding: 2rem 0 1rem;
  border-bottom: 1px solid var(--border);
}

header h1 {
  margin: 0;
  font-size: 1.6rem;
  letter-spacing: 0.02em;
}

.tagline {
  color: var(--muted);
  margin: 0.25rem 0 0;
  font-size: 0.85rem;
}

main {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

/* Each row is full width and splits it evenly between its panels. The gap
   is subtracted before dividing, so with gap g and width W two panels are
   (W - g) / 2 each and three panels are (W - 2g) / 3 each. */
.row {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(0, 1fr);
  gap: 1.5rem;
  width: 100%;
}

@media (max-width: 900px) {
  .row {
    grid-auto-flow: row;
  }
}

section {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem 1.25rem;
}

section h2 {
  margin-top: 0;
  font-size: 1rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

label {
  display: block;
  margin-bottom: 0.6rem;
  font-size: 0.85rem;
  color: var(--muted);
}

input, select, button {
  font-family: var(--mono);
  background: #0c0e13;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.4rem 0.5rem;
  margin-top: 0.2rem;
  width: 100%;
}

fieldset {
  border: 1px solid var(--border);
  border-radius: 4px;
  margin-bottom: 0.6rem;
}

fieldset label {
  display: inline-block;
  width: auto;
  margin-right: 1rem;
}

button {
  cursor: pointer;
  background: var(--accent);
  color: #0c0e13;
  font-weight: 600;
  border: none;
  margin-top: 0.5rem;
  transition: opacity 0.15s ease;
}

button:hover {
  opacity: 0.85;
}

#chaos-profiles {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

#chaos-profiles button {
  width: auto;
  flex: 1;
}

pre#result-json {
  background: #0c0e13;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.75rem;
  overflow-x: auto;
  font-size: 0.8rem;
  max-height: 260px;
}

code {
  background: #0c0e13;
  padding: 0.1rem 0.3rem;
  border-radius: 3px;
  user-select: all;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.75rem;
  font-size: 0.8rem;
}

th, td {
  border: 1px solid var(--border);
  padding: 0.35rem 0.5rem;
  text-align: right;
}

th:first-child, td:first-child {
  text-align: left;
}

#chaos-flags label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

#chaos-flags input {
  width: auto;
}

#health-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.dot {
  border-radius: 999px;
  padding: 0.25rem 0.6rem;
  font-size: 0.75rem;
  border: 1px solid var(--border);
}

.dot.green {
  color: var(--accent);
  border-color: var(--accent);
}

.dot.red {
  color: var(--danger);
  border-color: var(--danger);
}