:root {
  color-scheme: light;
  --bg: #f7f8fb;
  --panel: #ffffff;
  --ink: #1a2233;
  --muted: #647084;
  --line: #d9dee8;
  --primary: #1d6f8f;
  --primary-dark: #15566f;
  --warn: #9d4b00;
  --danger: #a6202d;
  --ok: #1f6f45;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

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

button,
.buttonLink {
  border: 0;
  border-radius: 6px;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
  padding: 10px 14px;
  text-decoration: none;
  text-align: center;
}

button:hover,
.buttonLink:hover {
  background: var(--primary-dark);
}

button.secondary {
  background: #3d5068;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.shell {
  min-height: 100vh;
  padding: 18px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  margin: 0 auto 16px;
  max-width: 1500px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 24px;
  line-height: 1.2;
}

h2 {
  font-size: 15px;
  margin: 22px 0 10px;
}

.topbar p {
  color: var(--muted);
  margin-top: 4px;
}

.token {
  display: flex;
  gap: 8px;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(230px, 280px) minmax(420px, 1fr) minmax(260px, 320px);
  gap: 14px;
  max-width: 1500px;
  margin: 0 auto;
  align-items: start;
}

.panel,
.editor {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}

.editor {
  min-height: 680px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}

.field.fill {
  height: auto;
}

label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  min-height: 38px;
  padding: 9px 10px;
}

textarea {
  resize: vertical;
  line-height: 1.5;
}

.split,
.resultGrid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.actions {
  display: flex;
  gap: 10px;
  align-items: center;
  margin: 8px 0 14px;
}

.full {
  width: 100%;
}

.checks {
  display: flex;
  gap: 12px;
  align-items: center;
  margin: 4px 0 12px;
  color: var(--muted);
  font-size: 13px;
}

.checks input {
  width: auto;
  min-height: auto;
}

.list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 260px;
  overflow: auto;
}

.compact {
  max-height: 350px;
}

.item {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 9px;
  background: #fbfcfe;
}

.item strong {
  display: block;
  font-size: 13px;
}

.item span,
.item small {
  color: var(--muted);
  display: block;
  margin-top: 3px;
}

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

.warning {
  border-left: 4px solid var(--warn);
  background: #fff8ee;
  padding: 9px 10px;
  color: #603400;
}

.warning.high {
  border-left-color: var(--danger);
  background: #fff1f3;
  color: #64131d;
}

.trace {
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
  white-space: pre-wrap;
}

@media (max-width: 1100px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .topbar {
    align-items: stretch;
    flex-direction: column;
  }
}

@media (max-width: 720px) {
  .shell {
    padding: 10px;
  }

  .split,
  .resultGrid,
  .token {
    grid-template-columns: 1fr;
    flex-direction: column;
  }
}