:root {
  color-scheme: light dark;
  --bg: #f6f7f9;
  --panel: #ffffff;
  --text: #1b1f24;
  --muted: #5b6470;
  --line: #d9dee5;
  --accent: #0b6bcb;
  --accent-soft: #e6f0fb;
  --code-bg: #10151c;
  --code-text: #e6edf3;
  --warn: #8a5a00;
  --warn-bg: #fff4d6;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1116;
    --panel: #171b22;
    --text: #e6edf3;
    --muted: #9aa5b1;
    --line: #2b323c;
    --accent: #6cb2ff;
    --accent-soft: #14273d;
    --code-bg: #0a0d12;
    --warn: #f2cc60;
    --warn-bg: #2d2408;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font:
    15px / 1.5 system-ui,
    -apple-system,
    "Segoe UI",
    Roboto,
    sans-serif;
}

code,
pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
}

.top {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  align-items: flex-end;
  justify-content: space-between;
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 16px 8px;
}

.top h1 {
  margin: 0 0 4px;
  font-size: 24px;
}

.top .sub {
  color: var(--muted);
  font-weight: 400;
}

.top p {
  max-width: 62ch;
  margin: 0;
  color: var(--muted);
}

.top nav {
  display: flex;
  gap: 16px;
}

a {
  color: var(--accent);
}

input[type="text"],
input[type="number"],
select {
  width: 100%;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
}

input[type="number"] {
  width: 90px;
}

input:focus-visible,
select:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

button {
  padding: 4px 10px;
  border: 1px solid #3a4452;
  border-radius: 6px;
  background: #1f2732;
  color: #e6edf3;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}

button:hover {
  background: #2a3442;
}

main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px;
}

@media (max-width: 860px) {
  main {
    grid-template-columns: minmax(0, 1fr);
  }
}

fieldset {
  min-width: 0;
  margin: 0 0 16px;
  padding: 14px 16px 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
}

legend {
  padding: 0 6px;
  font-weight: 600;
}

.hint {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
}

fieldset > .hint:first-of-type {
  margin: 0 0 10px;
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill,
.preset {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
}

.pill:has(input:checked),
.preset:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.presets {
  display: grid;
  gap: 8px;
}

.preset strong {
  display: block;
  text-transform: capitalize;
}

.preset small,
.check small,
.module small {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.stacks {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 6px 16px;
}

.stack {
  display: flex;
  gap: 8px;
  align-items: center;
  min-height: 32px;
}

.stack label {
  display: flex;
  flex: 1 1 auto;
  gap: 8px;
  align-items: center;
  white-space: nowrap;
}

.stack input[type="text"] {
  flex: 0 1 110px;
  width: 110px;
  min-width: 0;
}

.stack.off {
  color: var(--muted);
}

.modules {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 10px 16px;
  margin-top: 14px;
}

.module,
.check {
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.check {
  margin-top: 12px;
}

.module input,
.check input {
  margin-top: 4px;
}

.field {
  display: block;
  margin-top: 10px;
}

.field:first-of-type {
  margin-top: 0;
}

.field > span {
  display: block;
  margin-bottom: 4px;
  font-size: 13px;
  color: var(--muted);
}

.result {
  position: sticky;
  top: 16px;
  min-width: 0;
}

@media (max-width: 860px) {
  .result {
    position: static;
  }
}

.result h2 {
  margin: 18px 0 8px;
  font-size: 16px;
}

.result > div:first-child h2,
.result > h2:first-child {
  margin-top: 0;
}

.code {
  display: flex;
  flex-direction: column;
  color-scheme: dark;
  border-radius: 10px;
  background: var(--code-bg);
}

.code pre {
  max-height: 56vh;
  margin: 0;
  padding: 6px 16px 14px;
  overflow: auto;
  color: var(--code-text);
  white-space: pre;
}

.code .buttons {
  display: flex;
  order: -1;
  gap: 6px;
  justify-content: flex-end;
  padding: 8px 8px 0;
}

.problems {
  margin: 0 0 8px;
  padding: 10px 14px 10px 30px;
  border-radius: 8px;
  background: var(--warn-bg);
  color: var(--warn);
  font-size: 13px;
}

[hidden] {
  /* biome-ignore lint/complexity/noImportantStyles: hidden has to win over every display rule above */
  display: none !important;
}