:root {
  --bg: #11131a;
  --panel: #1b1f2a;
  --panel-2: #222837;
  --text: #e8ecf3;
  --muted: #a8b0c0;
  --line: #343b4d;
  --accent: #8fd36a;
  --danger: #ff3b30;
  --field: #0e1118;
  --shadow: 0 10px 30px rgb(0 0 0 / 35%);
  --mono:
    ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
}

.app {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 12px;
  min-height: 100vh;
  padding: 12px;
}

aside,
main {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
}

aside {
  display: flex;
  flex-direction: column;
  padding: 12px;
  overflow: auto;
}

main {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-width: 0;
}

h1 {
  margin: 0 0 4px;
  font-size: 19px;
  line-height: 1.15;
  letter-spacing: 0.01em;
}

.subtitle {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

.group {
  margin: 0 0 10px;
  padding: 10px;
  border: 1px solid var(--line);
  background: var(--panel-2);
}

.group h2 {
  margin: 0 0 8px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

label {
  display: grid;
  gap: 4px;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 12px;
}

input,
select,
button {
  font: inherit;
}

input,
select {
  width: 100%;
  min-height: 32px;
  border: 1px solid var(--line);
  border-radius: 0;
  background: var(--field);
  color: var(--text);
  padding: 6px 8px;
  outline: none;
}

input:focus,
select:focus {
  border-color: var(--accent);
}

input[type="checkbox"] {
  width: 16px;
  min-height: 16px;
  margin: 0;
  accent-color: var(--accent);
}

.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.field-grid {
  display: grid;
  gap: 8px;
}

.field-grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.compact-field {
  grid-template-columns: 38px minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  margin-bottom: 0;
}

.compact-field.span-2 {
  grid-template-columns: 56px minmax(0, 1fr);
}

.compact-field input,
.compact-field select {
  min-height: 30px;
  padding: 5px 8px;
}

.compact-field > :first-child {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.span-2 {
  grid-column: 1 / -1;
}

.check-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin: 4px 0 4px;
  color: var(--muted);
  font-size: 12px;
  /* cursor: pointer; */
}

.hint {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.status {
  margin-top: 8px;
  padding: 8px;
  border-left: 3px solid var(--accent);
  background: rgb(143 211 106 / 8%);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.45;
  white-space: pre-wrap;
}

.status.error {
  border-left-color: var(--danger);
  background: rgb(255 59 48 / 8%);
  color: #ffb0aa;
}

.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 10px;
}

button {
  min-height: 36px;
  border: 1px solid var(--accent);
  border-radius: 0;
  background: var(--accent);
  color: #101410;
  padding: 8px 10px;
  font-weight: 700;
  cursor: pointer;
}

button.secondary {
  border-color: var(--line);
  background: var(--panel-2);
  color: var(--text);
  font-weight: 600;
}

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

.preview-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 10px;
  border-bottom: 1px solid var(--line);
  background: var(--panel-2);
}

.preview-head strong {
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.legend {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 12px;
}

.legend span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.swatch {
  width: 12px;
  height: 12px;
  border: 1px solid var(--line);
  background: #000;
}

.swatch.red {
  background: none;
  border: 2px solid #f00;
}

.preview-wrap {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 0;
  overflow: auto;
  padding: 14px;
  background-image:
    linear-gradient(rgb(255 255 255 / 4%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / 4%) 1px, transparent 1px);
  background-size: 20px 20px;
}

#preview {
  width: min(78vh, 82vw);
  max-width: 900px;
  min-width: 280px;
  display: grid;
  place-items: center;
}

#preview svg {
  width: 100%;
  height: auto;
  background: #f5f5f5;
  border: 1px solid #3a3a3a;
}

.foot {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 12px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  font-family: var(--mono);
}

.sidebar-footer {
  margin-top: auto;
  padding-top: 14px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  color: var(--muted);
  font-size: 12px;
  border-top: 1px solid var(--line);
}

.sidebar-footer a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 700;
}

.sidebar-footer a:hover {
  text-decoration: underline;
}

code {
  color: var(--text);
  font-family: var(--mono);
}

@media (max-width: 850px) {
  .app {
    grid-template-columns: 1fr;
  }
}