/* Cleanroom — single stylesheet, no framework, no webfont (nothing to fetch). */

:root {
  color-scheme: light dark;

  --surface-0: #f4f4f1;
  --surface-1: #fcfcfb;
  --surface-2: #efefec;
  --border:    #dcdcd6;
  --border-strong: #c4c4bc;

  --text-primary:   #0b0b0b;
  --text-secondary: #52514e;
  --text-muted:     #77766f;

  --series-1: #2a78d6;
  --accent:   #2a78d6;
  --good:     #0ca30c;
  --warning:  #a86800;
  --danger:   #c0362c;

  --radius: 10px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --surface-0: #111110;
    --surface-1: #1a1a19;
    --surface-2: #232322;
    --border:    #33332f;
    --border-strong: #4a4a45;

    --text-primary:   #ffffff;
    --text-secondary: #c3c2b7;
    --text-muted:     #91908a;

    --series-1: #3987e5;
    --accent:   #3987e5;
    --good:     #3ec13e;
    --warning:  #fab219;
    --danger:   #ef6a5e;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--surface-0);
  color: var(--text-primary);
  font: 14px/1.5 var(--sans);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { margin: 0; font-weight: 650; letter-spacing: -0.01em; }
code { font-family: var(--mono); font-size: 0.92em; }
a { color: var(--accent); }
.muted { color: var(--text-muted); }
.small { font-size: 12px; }
.pad { padding: 10px 14px; }
.ok-text { color: var(--good); }
.warn-text { color: var(--warning); }

/* ------------------------------------------------------------- topbar */

.topbar {
  display: flex; flex-wrap: wrap; gap: 12px;
  align-items: center; justify-content: space-between;
  padding: 14px 20px;
  background: var(--surface-1);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 20;
}
.brand { display: flex; gap: 12px; align-items: center; }
.brand .mark {
  font-size: 26px; line-height: 1; color: var(--accent);
  border: 2px solid var(--accent); border-radius: 8px;
  width: 38px; height: 38px; display: grid; place-items: center;
}
.topbar h1 { font-size: 17px; }
.tagline { margin: 2px 0 0; font-size: 12.5px; color: var(--text-secondary); }

.pills { display: flex; gap: 8px; flex-wrap: wrap; }
.pill {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 5px 11px; border-radius: 999px;
  font-size: 12px; border: 1px solid var(--border-strong);
  background: var(--surface-2); color: var(--text-secondary);
}
.pill code { font-size: 11px; }
.pill .dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.pill-ok    { color: var(--good);    border-color: color-mix(in srgb, var(--good) 40%, var(--border)); }
.pill-warn  { color: var(--warning); border-color: color-mix(in srgb, var(--warning) 40%, var(--border)); }
.pill-alert { color: var(--danger);  border-color: color-mix(in srgb, var(--danger) 40%, var(--border)); }

/* -------------------------------------------------------------- layout */

main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 16px;
  padding: 16px 20px;
  align-items: start;
}
@media (max-width: 1080px) { main { grid-template-columns: minmax(0, 1fr); } }

.panel {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.panel-head {
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
  padding: 12px 14px; border-bottom: 1px solid var(--border);
  background: var(--surface-1);
}
.panel-head h2 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-secondary); }
.meta { font-size: 12.5px; color: var(--text-secondary); flex: 1 1 auto; min-width: 200px; }
.head-actions { display: flex; gap: 6px; margin-left: auto; }

/* --------------------------------------------------------------- buttons */

.btn {
  font: inherit; font-size: 12.5px; font-weight: 550;
  padding: 6px 12px; border-radius: 7px; cursor: pointer;
  border: 1px solid var(--accent); background: var(--accent); color: #fff;
}
.btn:hover { filter: brightness(1.06); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-quiet { background: var(--surface-2); color: var(--text-primary); border-color: var(--border-strong); }
.btn-approve { background: var(--good); border-color: var(--good); }
.btn-reject { background: transparent; color: var(--danger); border-color: color-mix(in srgb, var(--danger) 50%, var(--border)); }
button.link { background: none; border: none; color: var(--accent); cursor: pointer; font: inherit; padding: 0; text-decoration: underline; }

/* ------------------------------------------------------------- the grid */

.grid-wrap { max-height: 58vh; overflow: auto; }
.empty { padding: 56px 24px; text-align: center; }
.empty h2 { font-size: 20px; text-transform: none; letter-spacing: -0.01em; color: var(--text-primary); }
.empty p { color: var(--text-secondary); }

table.grid { border-collapse: separate; border-spacing: 0; width: 100%; font-size: 12.5px; }
table.grid th, table.grid td {
  padding: 6px 10px; text-align: left; white-space: nowrap;
  border-bottom: 1px solid var(--border);
}
table.grid thead th {
  position: sticky; top: 0; z-index: 2;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border-strong);
  vertical-align: bottom;
}
.col-name { display: block; font-weight: 600; }
.col-type { font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); }
.type-number { color: var(--series-1); }
.type-date { color: var(--warning); }
.col-issue {
  display: inline-block; margin-left: 6px; min-width: 16px; text-align: center;
  background: var(--warning); color: var(--surface-1);
  border-radius: 999px; font-size: 10px; padding: 0 5px; font-weight: 700;
}
.rownum { color: var(--text-muted); font-variant-numeric: tabular-nums; width: 1%; }
td.blank { color: var(--text-muted); font-style: italic; }
td.dirty { background: color-mix(in srgb, var(--warning) 16%, transparent); border-radius: 3px; }
table.grid tbody tr:hover td { background: var(--surface-2); }

/* ------------------------------------------------------------ the rail */

.rail { position: sticky; top: 74px; max-height: calc(100vh - 92px); overflow: auto; }
.rail-section { padding: 12px 14px; border-bottom: 1px solid var(--border); }
.rail-section h2 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-secondary); margin-bottom: 10px; }
.badge {
  background: var(--warning); color: var(--surface-1);
  border-radius: 999px; padding: 1px 7px; font-size: 11px; font-weight: 700;
}

.proposal, .question {
  border: 1px solid var(--border-strong); border-radius: 9px;
  padding: 10px 11px; margin-bottom: 10px; background: var(--surface-2);
}
.proposal.pending { border-color: color-mix(in srgb, var(--warning) 55%, var(--border)); }
.proposal.approved { opacity: 0.62; }
.proposal.rejected { opacity: 0.62; }
.proposal header { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-bottom: 6px; }
.proposal .op { font-weight: 650; color: var(--accent); }
.status { font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); }
.status-pending { color: var(--warning); }
.status-approved { color: var(--good); }
.status-rejected { color: var(--danger); }
.proposal .summary { margin: 0 0 5px; font-size: 12.5px; }
.proposal .rationale { margin: 0 0 6px; font-size: 12px; color: var(--text-secondary); font-style: italic; }
.diffline { margin: 0 0 6px; font-size: 11.5px; color: var(--text-muted); font-variant-numeric: tabular-nums; }
table.diff { width: 100%; font-size: 11.5px; border-collapse: collapse; margin-bottom: 8px; }
table.diff td { padding: 2px 4px; }
.before { color: var(--danger); text-decoration: line-through; }
.after { color: var(--good); }
.arrow { color: var(--text-muted); }
.proposal .error { color: var(--danger); font-size: 12px; }
.actions { display: flex; gap: 6px; flex-wrap: wrap; }

.question { border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); }
.qtext { margin: 0 0 8px; font-size: 12.5px; }
.answer-form { display: flex; gap: 6px; }
.answer-form input { flex: 1; min-width: 0; font: inherit; font-size: 12.5px; padding: 5px 8px; border-radius: 6px; border: 1px solid var(--border-strong); background: var(--surface-1); color: var(--text-primary); }

.activity { display: flex; flex-direction: column; gap: 6px; }
.act { border-left: 2px solid var(--border-strong); padding: 4px 0 4px 9px; }
.act-ok { border-left-color: var(--good); }
.act-error { border-left-color: var(--danger); }
.act-running { border-left-color: var(--warning); }
.act-top { display: flex; gap: 7px; align-items: center; font-size: 12px; }
.act-kind { font-size: 9.5px; text-transform: uppercase; letter-spacing: 0.05em; padding: 1px 5px; border-radius: 4px; }
.act-kind.read { background: color-mix(in srgb, var(--series-1) 22%, transparent); color: var(--series-1); }
.act-kind.write { background: color-mix(in srgb, var(--warning) 26%, transparent); color: var(--warning); }
.act-ms { margin-left: auto; color: var(--text-muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.act-args, .act-result { font-size: 11px; color: var(--text-muted); font-family: var(--mono); word-break: break-word; }
.act-result { color: var(--text-secondary); font-family: var(--sans); }

/* ----------------------------------------------------- outputs & charts */

.outputs { padding: 14px; border-top: 1px solid var(--border); display: flex; flex-direction: column; gap: 16px; }
.export-card {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 11px 13px; border: 1px solid var(--good); border-radius: 9px;
  background: color-mix(in srgb, var(--good) 8%, transparent);
}
.export-card .small { display: block; }

figure.chart { margin: 0; }
figure.chart figcaption { font-size: 13px; font-weight: 600; margin-bottom: 8px; }
figure.chart svg { width: 100%; height: auto; max-width: 680px; display: block; }
.chart .grid { stroke: var(--border); stroke-width: 1; }
.chart .axis { stroke: var(--border-strong); stroke-width: 1; }
.chart .axis-label { fill: var(--text-muted); font-size: 11px; font-family: var(--sans); }
.chart .mark { transition: opacity 0.12s; }
.chart svg:hover .mark { opacity: 0.55; }
.chart .mark:hover { opacity: 1; }

.report { border: 1px solid var(--border); border-radius: 9px; padding: 14px 16px; background: var(--surface-2); }
.report h3 { font-size: 15px; margin-bottom: 8px; }
.report-body { font-size: 13px; color: var(--text-secondary); }
.report-body h3, .report-body h4, .report-body h5 { color: var(--text-primary); margin: 14px 0 6px; font-size: 13px; }
.report-body ul { margin: 6px 0; padding-left: 20px; }
.report-body p { margin: 6px 0; }

/* ------------------------------------------------------------- console */

.console { margin: 0 20px 20px; }
.console-body { display: grid; grid-template-columns: minmax(0, 380px) minmax(0, 1fr); gap: 16px; padding: 14px; }
@media (max-width: 860px) { .console-body { grid-template-columns: minmax(0, 1fr); } }
.console label { display: block; font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); margin-bottom: 5px; }
.console select, .console textarea {
  width: 100%; font: inherit; font-size: 12.5px; padding: 7px 9px;
  border-radius: 7px; border: 1px solid var(--border-strong);
  background: var(--surface-2); color: var(--text-primary);
}
.console textarea { font-family: var(--mono); resize: vertical; }
.tool-desc { font-size: 12px; color: var(--text-secondary); margin: 8px 0 12px; max-height: 120px; overflow: auto; }
.console .btn { margin-top: 10px; }
.tool-output {
  margin: 0; padding: 11px; border-radius: 7px; background: var(--surface-2);
  border: 1px solid var(--border); font-family: var(--mono); font-size: 11.5px;
  white-space: pre-wrap; word-break: break-word; max-height: 380px; overflow: auto;
  color: var(--text-secondary);
}
.tool-catalogue { border-top: 1px solid var(--border); padding: 12px 14px; }
.tool-catalogue summary { cursor: pointer; font-size: 12.5px; color: var(--text-secondary); }
.tool-list { list-style: none; padding: 0; margin: 10px 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 5px; font-size: 12px; }
.tag { font-size: 10px; text-transform: uppercase; letter-spacing: 0.05em; padding: 1px 5px; border-radius: 4px; }
.tag-read { background: color-mix(in srgb, var(--series-1) 20%, transparent); color: var(--series-1); }
.tag-write { background: color-mix(in srgb, var(--warning) 24%, transparent); color: var(--warning); }

.footer { padding: 0 20px 32px; color: var(--text-muted); font-size: 12px; max-width: 820px; }

/* --------------------------------------------------------- drop overlay */

.drop-overlay {
  position: fixed; inset: 0; z-index: 50; display: none;
  place-items: center; background: color-mix(in srgb, var(--surface-0) 88%, transparent);
  border: 3px dashed var(--accent);
}
body.dragging .drop-overlay { display: grid; }
.drop-overlay div { font-size: 18px; font-weight: 600; color: var(--accent); }