* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: var(--font);
  background: var(--paper);
  color: var(--ink);
  display: flex;
  flex-direction: column;
}
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
code { font-family: var(--mono); font-size: 0.84em; }

.top {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  padding: 0.65rem 0.85rem;
  background: var(--head);
  color: #efe7db;
}
.top h1 {
  margin: 0 0.75rem 0 0;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.top a { color: #e8c4b0; font-size: 0.85rem; margin-left: auto; }
.top button {
  background: var(--rust);
  color: #fff;
  border: 0;
  padding: 0.35rem 0.65rem;
}
.top button.ghost {
  background: transparent;
  border: 1px solid #6a6156;
  color: #efe7db;
}
.selfcheck { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.04em; }
.selfcheck.ok { color: #b8cbb8; }
.selfcheck.bad { color: #f0b4a8; }

.work {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: 13.5rem 1fr 13.5rem;
  grid-template-rows: auto minmax(12rem, 1fr) minmax(14rem, 1fr);
  grid-template-areas:
    "schema rail presets"
    "schema edit presets"
    "results results results";
}

.schema { grid-area: schema; overflow: auto; border-right: 1px solid var(--line); background: var(--panel); padding: 0.7rem 0.75rem; }
.presets { grid-area: presets; overflow: auto; border-left: 1px solid var(--line); background: var(--panel); padding: 0.7rem 0.75rem; }
.rail { grid-area: rail; border-bottom: 1px solid var(--line); background: #2a251f; color: #d7cbb8; padding: 0.45rem 0.75rem; font-family: var(--mono); font-size: 0.75rem; white-space: pre-wrap; min-height: 2.4rem; }
.edit { grid-area: edit; overflow: auto; display: grid; grid-template-rows: minmax(9rem, 34%) auto; min-height: 0; }
.results { grid-area: results; overflow: auto; border-top: 1px solid var(--line); background: var(--panel); }

.schema h3, .presets h3 {
  margin: 0.85rem 0 0.35rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--rust);
}
.schema article:first-child h3, .presets h3:first-child { margin-top: 0; }
.schema h3 em { font-style: normal; color: var(--muted); font-family: var(--mono); font-size: 0.7rem; }
.schema ul { list-style: none; margin: 0; padding: 0; }
.schema li { display: flex; justify-content: space-between; gap: 0.5rem; font-size: 0.82rem; padding: 0.12rem 0; }
.schema li span { color: var(--muted); font-size: 0.75rem; }

.sql-wrap { display: flex; flex-direction: column; min-height: 0; padding: 0.55rem 0.7rem 0; }
#sql {
  flex: 1;
  min-height: 7rem;
  width: 100%;
  resize: vertical;
  border: 1px solid var(--line);
  background: #fff;
  padding: 0.5rem 0.6rem;
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.45;
}
#sql.err { border-color: var(--bad); }
.parse-err {
  margin: 0.3rem 0 0;
  color: var(--bad);
  font-size: 0.8rem;
}
.builder { padding: 0.55rem 0.7rem 0.85rem; border-top: 1px solid var(--line); }
.field { display: flex; flex-wrap: wrap; gap: 0.4rem; align-items: center; margin-bottom: 0.55rem; }
.field label { font-size: 0.75rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.alias-lab { letter-spacing: 0.04em; }
.head-row { justify-content: space-between; }
.chips { display: flex; flex-wrap: wrap; gap: 0.35rem; margin: 0 0 0.7rem; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.28rem;
  border: 1px solid var(--line);
  background: #fff;
  padding: 0.2rem 0.4rem;
  font-size: 0.78rem;
}
.chip input[type="text"] {
  width: 5.5rem;
  border: 0;
  border-left: 1px solid var(--line);
  padding: 0 0.3rem;
  background: transparent;
  font-family: var(--mono);
  font-size: 0.75rem;
}
.clause {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
  margin-bottom: 0.35rem;
}
.conj {
  font-family: var(--mono);
  font-size: 0.7rem;
  width: 3.4rem;
  color: var(--rust);
}
select, .clause input, #b-from-alias, #b-join-alias, #b-limit {
  border: 1px solid var(--line);
  background: #fff;
  padding: 0.22rem 0.35rem;
}
#b-limit { width: 5rem; }
button.ghost, button.link {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 0.22rem 0.45rem;
  font-size: 0.8rem;
}
button.link {
  display: block;
  width: 100%;
  text-align: left;
  margin-bottom: 0.28rem;
}
button.link.on { border-color: var(--rust); background: var(--sel); }
button.tiny {
  border: 1px solid var(--line);
  background: #fff;
  width: 1.5rem;
  height: 1.5rem;
  padding: 0;
  line-height: 1;
}
.saved-row { display: flex; gap: 0.25rem; align-items: center; }
.saved-row .link { flex: 1; }
.hint { margin: 0 0 0.4rem; color: var(--muted); font-size: 0.82rem; }
.tiny-lab { font-size: 0.75rem; color: var(--muted); text-transform: none; letter-spacing: 0; }

.status {
  display: flex;
  gap: 0.7rem;
  align-items: center;
  padding: 0.35rem 0.75rem;
  border-top: 1px solid var(--line);
  background: var(--paper);
  font-size: 0.8rem;
}
.pill {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.12rem 0.4rem;
}
.pill.ok { background: var(--ok); color: #f3eee4; }
.pill.bad { background: var(--bad); color: #fff6ee; }

.results table { border-collapse: collapse; min-width: 100%; font-size: 0.82rem; }
.results th, .results td {
  border: 1px solid var(--line);
  padding: 0.28rem 0.5rem;
  text-align: left;
  white-space: nowrap;
}
.results th { background: #f6f0e6; font-weight: 600; }
.results td.empty { color: var(--muted); font-style: italic; }

@media (max-width: 900px) {
  .work {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto auto auto;
    grid-template-areas:
      "rail"
      "edit"
      "schema"
      "presets"
      "results";
  }
  .schema, .presets { border: 0; border-top: 1px solid var(--line); max-height: 12rem; }
}