/* JAXSR web app styles. Light and dark, no framework. */

:root {
  --bg: #ffffff;
  --surface: #f7f8fa;
  --border: #dfe3e8;
  --text: #1f2328;
  --muted: #5c6570;
  --accent: #2563eb;
  --accent-soft: #eaf0fe;
  --good: #059669;
  --bad: #dc2626;
  --warn: #b45309;
  --warn-soft: #fdf6e7;
  --grid: #e4e7eb;
  --radius: 8px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171c;
    --surface: #1c2027;
    --border: #333a44;
    --text: #e6e9ee;
    --muted: #99a2ae;
    --accent: #6ea8fe;
    --accent-soft: #1e2a3f;
    --good: #34d399;
    --bad: #f87171;
    --warn: #fbbf24;
    --warn-soft: #2a2415;
    --grid: #2b313a;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0 1.25rem 4rem;
  max-width: 1080px;
  margin-inline: auto;
  font: 15px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
}

h1 {
  font-size: 1.55rem;
  margin: 0;
  letter-spacing: -0.01em;
}
h2 {
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
h3 {
  font-size: 1rem;
  margin: 1.5rem 0 0.4rem;
}
h4 {
  font-size: 0.92rem;
  margin: 0 0 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

a {
  color: var(--accent);
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.75rem 0 1rem;
  flex-wrap: wrap;
}
.title-block p {
  margin: 0.25rem 0 0;
  color: var(--muted);
}

#status {
  font-size: 0.82rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  white-space: nowrap;
}
#status[data-kind="busy"]::before {
  content: "◌ ";
}
#status[data-kind="ready"] {
  color: var(--good);
  border-color: color-mix(in srgb, var(--good) 40%, transparent);
}
#status[data-kind="ready"]::before {
  content: "● ";
}
#status[data-kind="error"] {
  color: var(--bad);
  border-color: color-mix(in srgb, var(--bad) 40%, transparent);
}

.step {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem 1.5rem;
  margin-bottom: 1.25rem;
  background: var(--surface);
}
.step-number {
  display: inline-grid;
  place-items: center;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
}

.muted {
  color: var(--muted);
  font-size: 0.88rem;
}

.notice {
  padding: 0.6rem 0.8rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg);
  font-size: 0.88rem;
  margin: 0.75rem 0 0;
}
.notice.privacy {
  margin: 0 0 1.25rem;
  border-color: color-mix(in srgb, var(--good) 35%, transparent);
}
.notice.ok {
  border-color: color-mix(in srgb, var(--good) 45%, transparent);
}
.notice.warning,
.warning {
  border-color: color-mix(in srgb, var(--warn) 50%, transparent);
  background: var(--warn-soft);
  color: var(--warn);
}
.notice.error {
  border-color: color-mix(in srgb, var(--bad) 50%, transparent);
  color: var(--bad);
}

/* --- data ---------------------------------------------------------- */

.drop-zone {
  display: grid;
  gap: 0.25rem;
  place-items: center;
  padding: 2rem 1rem;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  cursor: pointer;
  text-align: center;
}
.drop-zone:hover,
.drop-zone:focus-visible,
.drop-zone.dragging {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.file-name {
  font-size: 0.85rem;
  color: var(--accent);
}

table.data,
table.ranked {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  margin-top: 0.5rem;
}
table.data th,
table.ranked th {
  text-align: left;
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  padding: 0.4rem 0.6rem;
  white-space: nowrap;
}
table.data td,
table.ranked td {
  padding: 0.38rem 0.6rem;
  border-bottom: 1px solid var(--grid);
  vertical-align: middle;
}
table.compact td,
table.compact th {
  padding: 0.2rem 0.45rem;
  font-size: 0.8rem;
}
td.num,
th.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.expr,
code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.87em;
}

select,
input[type="number"] {
  font: inherit;
  padding: 0.24rem 0.4rem;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--bg);
  color: var(--text);
}
input[type="number"] {
  width: 6rem;
}

.scroll-x {
  overflow-x: auto;
  max-width: 100%;
}
.preview {
  margin-top: 0.9rem;
}
.preview summary {
  cursor: pointer;
  font-size: 0.88rem;
  color: var(--muted);
}

/* --- model config -------------------------------------------------- */

.basis-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 0.5rem 1.25rem;
  margin: 0.75rem 0;
}
.basis-grid > label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
  padding: 0.3rem 0;
}
.basis-grid > label.wide {
  grid-column: 1 / -1;
  align-items: flex-start;
}
.inline-field {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.inline-field input {
  width: 4rem;
}
.sub-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem 0.85rem;
  padding-left: 0.5rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.sub-options label {
  display: inline-flex;
  gap: 0.3rem;
  align-items: center;
}

.term-count {
  padding: 0.55rem 0.8rem;
  background: var(--accent-soft);
  border-radius: var(--radius);
  font-size: 0.9rem;
}
.term-names {
  display: block;
  margin-top: 0.4rem;
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.78rem;
  word-break: break-word;
}

.field-grid {
  display: grid;
  gap: 0.5rem;
}
.field-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.field-row > label:first-child {
  min-width: 8rem;
  font-size: 0.9rem;
}

button {
  font: inherit;
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
}
button:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}
button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
  padding: 0.5rem 1.6rem;
  margin-top: 1rem;
}
button.primary:hover:not(:disabled) {
  color: #fff;
  filter: brightness(1.08);
}
.link-button {
  background: none;
  border: none;
  padding: 0;
  color: var(--accent);
  text-decoration: underline;
  font-size: inherit;
}
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* --- results ------------------------------------------------------- */

table.ranked tbody tr {
  cursor: pointer;
}
table.ranked tbody tr:hover {
  background: var(--accent-soft);
}
table.ranked tr.is-selected {
  background: var(--accent-soft);
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}
table.ranked tr.is-best td {
  font-weight: 600;
}
td.rank {
  white-space: nowrap;
}
.badge {
  display: inline-block;
  margin-left: 0.35rem;
  padding: 0.05rem 0.4rem;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.badge.best {
  background: var(--bad);
  color: #fff;
}
.badge.pareto {
  background: var(--good);
  color: #fff;
}
.badge.muted-badge {
  background: var(--border);
  color: var(--muted);
}
.summary-row td {
  border-top: 1px solid var(--border);
  color: var(--muted);
}

.detail-header {
  margin: 1rem 0 0.5rem;
}
.detail-header h3 {
  margin: 0 0 0.3rem;
}
.detail-header .expression {
  display: block;
  padding: 0.5rem 0.7rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  word-break: break-word;
}

.stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.75rem 0;
}
.stat {
  display: grid;
  gap: 0.1rem;
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  min-width: 6rem;
}
.stat-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.stat-value {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.panel {
  margin-top: 1.25rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
}

.chart-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 0.9rem;
  margin-top: 1rem;
}
.chart-card {
  margin: 1rem 0 0;
  padding: 0.7rem 0.8rem 0.4rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
}
.chart-card figcaption {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}
.chart {
  width: 100%;
  height: auto;
  display: block;
}
.chart .grid line {
  stroke: var(--grid);
  stroke-width: 1;
}
.chart .axis line {
  stroke: var(--muted);
  stroke-width: 1;
}
.chart text {
  fill: var(--muted);
}
.chart .tick {
  font-size: 11px;
  text-anchor: middle;
}
.chart .tick-y {
  text-anchor: end;
}
.chart .axis-label {
  font-size: 12px;
  text-anchor: middle;
}
.chart .point {
  fill: var(--accent);
  fill-opacity: 0.55;
}
.chart .point.pareto {
  fill: var(--good);
  fill-opacity: 0.9;
}
.chart .point.best {
  fill: var(--bad);
  fill-opacity: 1;
}
.chart .reference {
  stroke: var(--muted);
  stroke-dasharray: 4 3;
  stroke-opacity: 0.7;
}
.chart .pareto-line {
  fill: none;
  stroke: var(--good);
  stroke-width: 1.5;
}
.chart .interval {
  stroke: var(--accent);
  stroke-width: 2;
}
.chart .interval.significant {
  stroke: var(--bad);
}
.chart .interval-cap {
  stroke: var(--accent);
  stroke-width: 1.5;
}

.code-preview {
  margin-top: 0.9rem;
  padding: 0.8rem;
  max-height: 22rem;
  overflow: auto;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.8rem;
  white-space: pre;
}

footer {
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}