/* SectionHub Taxonomy Explorer — Phase 1 MVP */

:root {
  --ink: #1c2430;
  --muted: #5b6675;
  --line: #d7dde5;
  --accent: #14532d;
  --accent-soft: #e7f3ec;
  --warn-bg: #fdf3e3;
  --warn-edge: #b45309;
  --bg: #f7f9fb;
  --card: #ffffff;
  --mono: ui-monospace, "Cascadia Code", Consolas, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0 auto;
  max-width: 60rem;
  padding: 1.5rem 1rem 4rem;
  font: 16px/1.55 system-ui, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
}

header h1 { margin: 0 0 .25rem; font-size: 1.6rem; }
.subtitle { margin: 0; color: var(--muted); max-width: 46rem; }
.meta { color: var(--muted); font-family: var(--mono); font-size: .8rem; }

main { display: grid; gap: 1.25rem; margin-top: 1.5rem; }

#wizard, #result {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
}

h2 { font-size: 1.1rem; margin: 1rem 0 .5rem; }
#wizard h2:first-child, #result h2:first-child { margin-top: 0; }

.help { color: var(--muted); font-size: .9rem; margin: .25rem 0 .75rem; }

.trail { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: .75rem; }
.chip {
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 999px;
  padding: .15rem .7rem;
  font-size: .8rem;
}

.options { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: .5rem; }
.option {
  font: inherit;
  padding: .55rem 1rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
}
.option:hover { border-color: var(--accent); background: var(--accent-soft); }

.path { font-family: var(--mono); font-size: 1rem; background: var(--accent-soft); padding: .5rem .75rem; border-radius: 6px; }

table { border-collapse: collapse; width: 100%; font-size: .9rem; }
th, td { border: 1px solid var(--line); padding: .45rem .6rem; text-align: left; vertical-align: top; }
th { background: var(--bg); }

.explanations { padding-left: 1.25rem; }
.explanations li { margin: .25rem 0; }

pre {
  background: #101418;
  color: #d8e2ec;
  padding: 1rem;
  border-radius: 8px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: .82rem;
}

.warning {
  background: var(--warn-bg);
  border-left: 4px solid var(--warn-edge);
  padding: .6rem .9rem;
  border-radius: 0 6px 6px 0;
  margin-bottom: .75rem;
}

/* Refusal panel — the W-201 "refuse to guess" centerpiece */
.refusal {
  background: var(--warn-bg);
  border: 1px solid var(--warn-edge);
  border-left-width: 5px;
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}
.refusal-code {
  font-family: var(--mono);
  font-weight: 700;
  color: var(--warn-edge);
  margin-bottom: .5rem;
}
.refusal dl { margin: 0; }
.refusal dt { font-weight: 600; margin-top: .6rem; }
.refusal dd { margin: .15rem 0 0; color: var(--ink); }
.refusal .path { margin-top: .75rem; }

/* Decision trace */
.trace { display: grid; gap: .6rem; }
.trace-entry {
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 6px;
  padding: .6rem .9rem;
  background: #fff;
}
.trace-entry.trace-warning { border-left-color: var(--warn-edge); }
.trace-id { font-family: var(--mono); font-weight: 700; color: var(--accent); margin-bottom: .3rem; }
.trace-entry.trace-warning .trace-id { color: var(--warn-edge); }
.trace-entry dl {
  margin: 0;
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: .1rem .8rem;
  font-size: .88rem;
}
.trace-entry dt { color: var(--muted); }
.trace-entry dd { margin: 0; }

/* Dictionary status badges */
.badge {
  font-family: var(--mono);
  font-size: .72rem;
  font-weight: 700;
  padding: .1rem .5rem;
  border-radius: 999px;
  white-space: nowrap;
}
.badge-active { background: var(--accent-soft); color: var(--accent); }
.badge-demo { background: var(--warn-bg); color: var(--warn-edge); }
.badge-superclass { background: #e8eaf0; color: #444d5c; }
.badge-reserved, .badge-deprecated, .badge-unknown { background: #eee; color: var(--muted); }

.note { color: var(--warn-edge); font-size: .85rem; }

.actions { display: flex; gap: .6rem; margin-top: 1rem; }

footer {
  margin-top: 2rem;
  color: var(--muted);
  font-size: .85rem;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  align-items: baseline;
}
footer a { color: var(--accent); }
.linklike {
  font: inherit;
  color: var(--accent);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  text-decoration: underline;
}