:root {
  --bg: #f4efe7;
  --panel: #fff9ef;
  --ink: #1f1b17;
  --sub: #5f5448;
  --line: #ded2c3;
  --accent: #1b7f6b;
  --accent-ink: #ffffff;
  --warn: #9b4620;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 10%, #fff8df 0, transparent 36%),
    radial-gradient(circle at 90% 20%, #dcefe7 0, transparent 28%),
    linear-gradient(160deg, #f3ebdf 0%, #efe4d2 100%);
  font-family: "IBM Plex Sans SC", sans-serif;
}

.container {
  width: min(1080px, 94vw);
  margin: 36px auto 44px;
  display: grid;
  gap: 16px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 10px 25px rgba(38, 31, 24, 0.08);
}

.hero h1 {
  margin: 0 0 6px;
  font-size: clamp(24px, 3.4vw, 36px);
}

.hero p {
  margin: 0;
  color: var(--sub);
}

form {
  display: grid;
  gap: 10px;
}

label {
  font-weight: 600;
}

input {
  width: 100%;
  padding: 11px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font-size: 14px;
  outline: none;
}

input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(27, 127, 107, 0.15);
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 4px;
}

button {
  border: 0;
  border-radius: 10px;
  padding: 10px 14px;
  cursor: pointer;
  font-weight: 700;
  font-size: 14px;
}

#submit-btn {
  background: var(--accent);
  color: var(--accent-ink);
}

#fill-demo,
#copy-json {
  background: #ede3d6;
  color: #2b241d;
}

.status {
  margin: 10px 0 0;
  color: var(--sub);
}

.summary {
  display: grid;
  gap: 6px;
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
}

.warnings {
  margin-top: 8px;
  color: var(--warn);
  font-size: 14px;
}

.table-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.table-wrap {
  overflow: auto;
  margin-top: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 860px;
}

th, td {
  border-bottom: 1px solid var(--line);
  text-align: left;
  padding: 10px 8px;
  vertical-align: top;
  font-size: 13px;
}

th { font-size: 12px; color: var(--sub); }

td.mono {
  font-family: "JetBrains Mono", monospace;
  word-break: break-all;
}

a.link {
  color: #0b5eeb;
}

.cell-actions {
  min-width: 272px;
}

.copy-title {
  margin-bottom: 8px;
  font-size: 12px;
  font-weight: 700;
  color: #6a5d4f;
  text-align: center;
}

.copy-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
  gap: 8px;
  align-items: stretch;
}

.copy-action-btn {
  padding: 8px 10px;
  min-height: 34px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.3;
  white-space: normal;
  background: #e7dccf;
  color: #2b241d;
  border: 0;
  cursor: pointer;
}

.copy-action-btn:hover {
  background: #ddcfbf;
}

.copy-action-btn.copied {
  background: #1b7f6b;
  color: #ffffff;
}

.copy-action-btn:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.variant-block {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px dashed #d9ccb9;
}

.variant-title {
  margin-bottom: 6px;
  font-size: 12px;
  font-weight: 700;
  color: #6a5d4f;
}

.variant-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
  gap: 8px;
  margin-top: 6px;
}

.muted {
  color: #8b7f71;
}

@media (max-width: 700px) {
  .container { width: 95vw; margin-top: 18px; }
  .panel { padding: 14px; }
  .cell-actions { min-width: 248px; }
}