:root {
  --bg: #f3efe7;
  --panel: rgba(255, 252, 247, 0.88);
  --panel-strong: #fffdf8;
  --line: rgba(86, 63, 35, 0.12);
  --line-strong: rgba(86, 63, 35, 0.24);
  --text: #21170f;
  --muted: #6d5b49;
  --accent: #b6542f;
  --accent-strong: #8f3e20;
  --group: #2f6a63;
  --aggregate: #9c4d2d;
  --shadow: 0 24px 60px rgba(47, 27, 11, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(182, 84, 47, 0.16), transparent 28%),
    radial-gradient(circle at right, rgba(47, 106, 99, 0.12), transparent 24%),
    linear-gradient(180deg, #f8f4ee 0%, var(--bg) 100%);
  min-height: 100vh;
}

code,
pre {
  font-family: "IBM Plex Mono", "SFMono-Regular", monospace;
}

.app-shell {
  max-width: 1500px;
  margin: 0 auto;
  padding: 32px 20px 40px;
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-strong);
  font-size: 12px;
  font-weight: 700;
}

h1 {
  margin: 0;
  font-family: "Alegreya Sans SC", "Segoe UI", sans-serif;
  font-size: clamp(2.2rem, 4vw, 4rem);
  line-height: 0.95;
}

.hero-copy {
  max-width: 760px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.panel {
  background: var(--panel);
  backdrop-filter: blur(16px);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.workspace-grid {
  display: grid;
  grid-template-columns: minmax(420px, 1.08fr) minmax(380px, 0.92fr);
  gap: 24px;
}

.panel {
  padding: 22px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
}

.section-header h2,
.selected-columns h3 {
  margin: 0;
  font-size: 1rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 14px;
}

.field-block {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field-block span {
  font-size: 0.92rem;
  color: var(--muted);
}

input[type="text"],
input[type="search"],
select {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0 14px;
  background: rgba(255, 255, 255, 0.78);
  color: var(--text);
  font-size: 0.98rem;
}

input:focus {
  outline: 2px solid rgba(182, 84, 47, 0.28);
  border-color: rgba(182, 84, 47, 0.5);
}

.checkbox-block {
  flex-direction: row;
  align-items: center;
  align-self: end;
  min-height: 46px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.72);
}

.checkbox-block input {
  margin-right: 10px;
}

.toggle-row {
  display: flex;
  gap: 10px;
  margin: 18px 0;
  flex-wrap: wrap;
}

.toggle-button,
.primary-button,
.secondary-button,
.selected-pill {
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 140ms ease, opacity 140ms ease, background 140ms ease;
}

.toggle-button {
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.75);
  color: var(--muted);
}

.toggle-button.active {
  background: var(--text);
  color: #fff;
}

.counter {
  color: var(--muted);
  font-size: 0.95rem;
}

.fields-list {
  display: grid;
  gap: 12px;
  max-height: 68vh;
  overflow: auto;
  padding-right: 4px;
}

.field-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: flex-start;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.72);
  cursor: pointer;
}

.field-card.selected {
  border-color: rgba(182, 84, 47, 0.46);
  background: rgba(255, 249, 244, 0.96);
}

.field-card input {
  margin-top: 4px;
}

.field-card-top {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.field-card-body strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1rem;
}

.field-card-body code {
  color: var(--muted);
  font-size: 0.9rem;
  word-break: break-all;
}

.field-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.tag-chip,
.mode-badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 0.78rem;
}

.tag-chip {
  background: rgba(47, 106, 99, 0.08);
  color: var(--group);
}

.mode-badge.group {
  background: rgba(47, 106, 99, 0.14);
  color: var(--group);
}

.mode-badge.aggregate {
  background: rgba(156, 77, 45, 0.14);
  color: var(--aggregate);
}

.selected-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 18px;
}

.selected-header-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.mini-counter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 30px;
  height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 600;
}

.selected-list {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  gap: 8px;
  padding-top: 12px;
  min-height: 112px;
  max-height: 180px;
  overflow: auto;
}

.selected-pill {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "name remove"
    "code remove";
  align-items: center;
  column-gap: 10px;
  row-gap: 2px;
  width: 100%;
  padding: 9px 12px;
  background: var(--panel-strong);
  border: 1px solid var(--line);
  border-radius: 16px;
  text-align: left;
}

.selected-pill-name {
  grid-area: name;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.95rem;
}

.selected-pill-code {
  grid-area: code;
  min-width: 0;
  color: var(--muted);
  font-size: 0.78rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.selected-pill-remove {
  grid-area: remove;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: rgba(182, 84, 47, 0.12);
  color: var(--accent-strong);
  font-size: 0.9rem;
  font-weight: 700;
}

.selected-pill code {
  color: var(--muted);
  font-size: 0.8rem;
}

.preview-header {
  margin-top: 10px;
}

.primary-button,
.secondary-button {
  min-height: 40px;
  padding: 0 16px;
  font-weight: 600;
}

.primary-button {
  background: var(--accent);
  color: #fff;
}

.secondary-button {
  background: rgba(255, 255, 255, 0.85);
  color: var(--text);
  border: 1px solid var(--line);
}

.json-output {
  margin: 0;
  padding: 18px;
  border-radius: 18px;
  background: #1f1d1b;
  color: #f7f1e6;
  min-height: 460px;
  max-height: 68vh;
  overflow: auto;
  font-size: 0.92rem;
}

.empty-state {
  color: var(--muted);
  font-style: italic;
}

.inline-empty {
  padding: 18px;
  text-align: center;
  border: 1px dashed var(--line-strong);
  border-radius: 18px;
}

.toggle-button:hover,
.primary-button:hover,
.secondary-button:hover,
.selected-pill:hover {
  transform: translateY(-1px);
}

@media (max-width: 1180px) {
  .workspace-grid {
    grid-template-columns: 1fr;
  }

  .fields-list,
  .json-output {
    max-height: none;
  }
}

@media (max-width: 780px) {
  .hero,
  .selected-columns,
  .form-grid {
    grid-template-columns: 1fr;
    display: grid;
  }

  .hero {
    gap: 18px;
  }
}