/* Asterism static demo — forest design tokens.
 * Values copied from ui/src/index.css (":root" forest direction). Keep in sync:
 * if the app's tokens change, update these. PROV-DM colors: data = entity
 * (green), process = activity (blue). */
:root {
  --bg: #f3f6f0;
  --surface: #ffffff;
  --surface-alt: #f7faf4;
  --fg: #1b2a1d;
  --muted: #5f7263;
  --faint: #90a392;
  --border: #dde6dc;
  --border-strong: #cad7c8;

  --primary: #3f6f49;
  --primary-fg: #ffffff;
  --primary-soft: #e7f0e6;

  --accent: #c08b3e;
  --accent-soft: #f6ecd8;

  --entity: #3f7a4e;
  --entity-soft: #e6f0e6;
  --activity: #3d6f96;
  --activity-soft: #e4eef5;
  --result: #c26356; /* terracotta — the answer / value */
  --result-soft: #f6e3df;

  --success-fg: #2d4a32;
  --success-bg: #edf5ee;
  --success-border: #b8d4bb;
  --warn-fg: #b45309;
  --warn-bg: #fffbeb;
  --warn-border: #fde68a;

  --radius: 13px;
  --radius-sm: 8px;
  --radius-lg: 18px;
  --shadow-soft: 0 1px 2px rgba(20, 35, 22, 0.04);
  --shadow: 0 1px 2px rgba(20, 35, 22, 0.05), 0 8px 24px rgba(20, 35, 22, 0.06);

  --font-ui: 'Hanken Grotesk', 'Zen Kaku Gothic New', 'Noto Sans JP', system-ui, Avenir,
    Helvetica, Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-ui);
  line-height: 1.6;
  letter-spacing: 0.01em;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.25rem 4rem;
}

/* ---- header ---- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(243, 246, 240, 0.88);
  backdrop-filter: saturate(1.4) blur(8px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0.7rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
}
.brand-dot {
  width: 26px;
  height: 26px;
  border-radius: 9px;
  background: var(--primary);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.95rem;
}
.brand-name {
  font-weight: 700;
  letter-spacing: 0.02em;
}
.brand-sub {
  color: var(--muted);
  font-size: 0.82rem;
}
.topbar a.gh {
  margin-left: auto;
  font-size: 0.82rem;
  color: var(--muted);
  text-decoration: none;
}
.topbar a.gh:hover {
  color: var(--primary);
}

/* ---- hero ---- */
.hero {
  padding: 2.6rem 0 1.6rem;
}
.eyebrow {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.hero h1 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  margin: 0.4rem 0 0.6rem;
  line-height: 1.2;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.85fr;
  gap: 2.2rem;
  align-items: center; /* center the shorter flow card against the taller text */
}
@media (max-width: 820px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 1.4rem;
  }
}
.hero p {
  color: var(--muted);
  margin: 0;
}
.hero p + p {
  margin-top: 0.7rem;
}

/* hero right column: Asterism flow card */
.hero-aside {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 1.1rem 1.2rem;
  margin-top: 0.4rem;
}
.flow-title {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.7rem;
}
ol.flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}
ol.flow li {
  position: relative;
  padding-left: 0.2rem;
  font-size: 0.84rem;
  color: var(--fg);
  display: flex;
  gap: 0.5rem;
  align-items: baseline;
}
ol.flow li:not(:last-child)::after {
  content: '↓';
  position: absolute;
  left: 1.55rem;
  bottom: -0.5rem;
  font-size: 0.7rem;
  color: var(--faint);
}
.flow-k {
  flex: 0 0 auto;
  width: 2.6rem;
  font-size: 0.66rem;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 5px;
  padding: 0.12rem 0;
  text-align: center;
}
ol.flow li.flow-out {
  font-weight: 600;
}
ol.flow li.flow-out .flow-k {
  color: #fff;
  background: var(--primary);
}

/* "difference from a DB" — objective 3-point grid */
.why-lead {
  margin: 0 0 0.9rem;
  color: #6a5a36;
  font-size: 0.9rem;
  max-width: 80ch;
}
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem;
}
@media (max-width: 760px) {
  .why-grid {
    grid-template-columns: 1fr;
  }
}
.why-pt {
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid #e7d4ad;
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.8rem;
  display: grid;
  gap: 0.3rem;
}
.why-pt > b {
  color: #8a6322;
  font-size: 0.92rem;
}
.why-pt > span {
  font-size: 0.82rem;
  color: #6a5a36;
}
.why-pt code {
  font-family: var(--font-mono);
  font-size: 0.82em;
  background: rgba(255, 255, 255, 0.7);
  padding: 0.03em 0.3em;
  border-radius: 4px;
  word-break: break-word;
}
.why-pt em {
  color: var(--accent);
  font-style: normal;
  font-weight: 600;
}

/* why graph / ontology callout */
.why {
  margin-top: 1.6rem;
  background: var(--accent-soft);
  border: 1px solid #e7d4ad;
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
}
.why h2 {
  font-size: 1rem;
  margin: 0 0 0.35rem;
  color: #8a6322;
}
.why p {
  margin: 0;
  color: #6a5a36;
  font-size: 0.9rem;
  max-width: 78ch;
}
.why code {
  font-family: var(--font-mono);
  font-size: 0.82em;
  background: rgba(255, 255, 255, 0.55);
  padding: 0.05em 0.3em;
  border-radius: 4px;
}
.why .muted {
  color: #8a7a52;
}
.engine-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-top: 1rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-size: 0.8rem;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--muted);
}
.engine-pill .led {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--faint);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.03);
}
.engine-pill.live .led {
  background: var(--entity);
}
.engine-pill.fallback .led {
  background: var(--accent);
}

/* ---- cards ---- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 1.25rem 1.35rem;
  margin-top: 1.5rem;
}
.card > h2 {
  font-size: 1.12rem;
  margin: 0 0 0.15rem;
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}
.card > h2 .tool {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--primary);
  background: var(--primary-soft);
  padding: 0.1rem 0.45rem;
  border-radius: 6px;
  font-weight: 600;
}
.card > .lead {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 1rem;
}

/* ---- search controls ---- */
.search-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.9rem;
  flex-wrap: wrap;
}
.search-row input {
  flex: 1 1 220px;
  font: inherit;
  padding: 0.5rem 0.7rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface-alt);
  color: var(--fg);
}
.search-row input:focus {
  outline: 2px solid var(--primary-soft);
  border-color: var(--primary);
}
.btn {
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--primary);
  background: var(--primary);
  color: #fff;
}
.btn:hover {
  filter: brightness(1.05);
}
.btn.ghost {
  background: var(--surface);
  color: var(--primary);
}
.chips {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin: -0.3rem 0 0.9rem;
}
.chip {
  font: inherit;
  font-size: 0.8rem;
  cursor: pointer;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--surface-alt);
  color: var(--muted);
}
.chip:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* ---- ranking table ---- */
table.rank {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
table.rank th,
table.rank td {
  text-align: left;
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
table.rank th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
table.rank tbody tr {
  cursor: pointer;
}
table.rank tbody tr:hover {
  background: var(--surface-alt);
}
table.rank tbody tr.active {
  background: var(--primary-soft);
}
.rank-no {
  color: var(--faint);
  font-variant-numeric: tabular-nums;
}
.rank-val {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--result);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.rank-comp {
  font-family: var(--font-mono);
  font-size: 0.84rem;
}
.rank-title {
  color: var(--muted);
  font-size: 0.82rem;
}

/* ---- quality note ---- */
.note {
  margin-top: 0.9rem;
  padding: 0.55rem 0.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  background: var(--success-bg);
  color: var(--success-fg);
  border: 1px solid var(--success-border);
}
.note.warn {
  background: var(--warn-bg);
  color: var(--warn-fg);
  border-color: var(--warn-border);
}

/* ---- citation list (sample_search results) ---- */
.cites {
  display: grid;
  gap: 0.6rem;
}
.cite {
  border: 1px solid var(--border);
  border-left: 5px solid var(--entity);
  border-radius: var(--radius-sm);
  background: var(--surface);
  padding: 0.6rem 0.8rem;
}
.cite .badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--entity);
  background: var(--entity-soft);
  padding: 0.08rem 0.4rem;
  border-radius: 5px;
}
.cite .label {
  font-weight: 600;
  margin: 0.25rem 0 0.15rem;
}
.cite .field {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--muted);
  word-break: break-all;
}
.cite .field b {
  color: var(--faint);
  font-weight: 600;
}

/* ---- provenance trace ---- */
.prov {
  position: relative;
  margin-left: 0.3rem;
  padding-left: 1.3rem;
}
.prov::before {
  content: '';
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: var(--border-strong);
}
.prov-step {
  position: relative;
  padding: 0.35rem 0 0.7rem;
}
.prov-step .dot {
  position: absolute;
  left: -1.3rem;
  top: 0.55rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--entity);
  box-shadow: 0 0 0 3px var(--surface);
}
.prov-step.activity .dot {
  background: var(--activity);
}
.prov-step .head {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}
.prov-step .kind {
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--entity);
}
.prov-step.activity .kind {
  color: var(--activity);
}
.prov-step .name {
  font-weight: 600;
}
.prov-step .detail {
  color: var(--muted);
  font-size: 0.82rem;
}
.prov-step .iri {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--faint);
  word-break: break-all;
}
.prov-step .iri a {
  color: var(--faint);
  text-decoration: none;
}
.prov-step .iri a:hover {
  color: var(--primary);
  text-decoration: underline;
}

/* ---- two-column for provenance + plot ---- */
.prov-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.3rem;
  align-items: start;
}
@media (max-width: 760px) {
  .prov-grid {
    grid-template-columns: 1fr;
  }
}
.plot-box {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-alt);
  padding: 0.7rem;
}
.plot-box .cap {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.3rem;
}
.plot-box svg {
  width: 100%;
  height: auto;
  display: block;
}

/* ---- SPARQL disclosure ---- */
details.sparql {
  margin-top: 0.9rem;
  border-top: 1px dashed var(--border-strong);
  padding-top: 0.6rem;
}
details.sparql summary {
  cursor: pointer;
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 600;
  list-style: none;
}
details.sparql summary::before {
  content: '▸ ';
  color: var(--primary);
}
details.sparql[open] summary::before {
  content: '▾ ';
}
details.sparql pre {
  margin: 0.55rem 0 0;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.9rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  line-height: 1.5;
  color: #2a3a2c;
}

/* ---- cross-dataset bridge ---- */
.bridge {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.8rem 0.9rem;
  margin: 0.1rem 0 0.5rem;
  display: grid;
  gap: 0.55rem;
}
.bridge-path {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
}
.bridge-path .node {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  font-weight: 600;
  padding: 0.25rem 0.55rem;
  border-radius: var(--radius-sm);
  line-height: 1.25;
}
.bridge-path .node small {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.72em;
  opacity: 0.85;
}
.bridge-path .node.entity {
  background: var(--entity-soft);
  color: var(--entity);
}
.bridge-path .node.mp {
  background: var(--activity-soft);
  color: var(--activity);
}
.bridge-path .edge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--faint);
}
.bridge-note {
  font-size: 0.82rem;
  color: var(--muted);
}
.bridge-note code,
.bridge-iris b {
  font-family: var(--font-mono);
  font-size: 0.92em;
}
.bridge-note code {
  background: var(--surface);
  padding: 0.03em 0.3em;
  border-radius: 4px;
  color: var(--fg);
}
.bridge-iris {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--faint);
  word-break: break-all;
  display: grid;
  gap: 0.15rem;
}
.bridge-iris b {
  color: var(--faint);
}

.muted {
  color: var(--muted);
}
.empty {
  color: var(--faint);
  font-size: 0.88rem;
  padding: 0.8rem 0;
}

footer.foot {
  margin-top: 2.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--border);
  color: var(--faint);
  font-size: 0.8rem;
}
footer.foot a {
  color: var(--muted);
}