*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  color-scheme: dark;
  --bg:             #1e1e1e;
  --surface:        #252526;
  --surface-hover:  #2a2d2e;
  --border:         #454545;
  --primary:        #3794ff;
  --primary-hover:  #5ba8ff;
  --btn-bg:         #0e639c;
  --btn-hover:      #1177bb;
  --text:           #cccccc;
  --muted:          #858585;
  --restricted:     #f48771;
  --prohibited:     #c586c0;
  --non-restricted: #4ec9b0;
  --radius: 6px;
}

body { font-family: system-ui, sans-serif; background: var(--bg); color: var(--text); line-height: 1.5; }

/* ── Header ── */
header {
  background: #2d2d2d;
  color: var(--text);
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border);
}

.site-title { color: var(--text); text-decoration: none; font-size: 1.25rem; font-weight: 700; white-space: nowrap; }
.site-title:hover { color: var(--primary); }

.header-search { display: flex; gap: 0.5rem; flex: 1; max-width: 600px; }
.header-search input {
  flex: 1;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  background: #3c3c3c;
  color: var(--text);
  outline: none;
}
.header-search input:focus { border-color: var(--primary); }
.header-search button {
  padding: 0.4rem 1rem;
  background: var(--btn-bg);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
}
.header-search button:hover { background: var(--btn-hover); }

/* ── Layout ── */
main { max-width: 1100px; margin: 0 auto; padding: 1.5rem; }

footer { text-align: center; padding: 2rem; color: var(--muted); font-size: 0.85rem; border-top: 1px solid var(--border); }

/* ── Hero search (index, no query) ── */
.hero {
  text-align: center;
  padding: 4rem 1rem;
}
.hero h1 { font-size: 2rem; color: var(--primary); margin-bottom: 0.5rem; }
.hero p { color: var(--muted); margin-bottom: 2rem; }
.hero-form { display: flex; gap: 0.5rem; max-width: 540px; margin: 0 auto; }
.hero-form input {
  flex: 1;
  padding: 0.65rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 1rem;
  background: #3c3c3c;
  color: var(--text);
  outline: none;
}
.hero-form input:focus { border-color: var(--primary); }
.hero-form button {
  padding: 0.65rem 1.4rem;
  background: var(--btn-bg);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}
.hero-form button:hover { background: var(--btn-hover); }

/* ── Filters ── */
.filter-bar { display: flex; align-items: center; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1rem; font-size: 0.875rem; }
.filter-group { position: relative; display: inline-flex; align-items: center; }

button.sort-link {
  -webkit-appearance: none;
  appearance: none;
  display: inline-flex;
  align-items: center;
  font: inherit;
  line-height: inherit;
  cursor: pointer;
}

.filter-btn.filter-active { color: var(--primary); border-color: var(--primary); }
.filter-btn.filter-open   { color: var(--primary); border-color: var(--primary); background: var(--surface-hover); }

.filter-dropdown {
  position: absolute;
  top: calc(100% + 5px);
  left: 0;
  min-width: 200px;
  max-height: 260px;
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.3rem 0;
  z-index: 200;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.5);
}
.filter-search-wrap { padding: 0.3rem 0.5rem; border-bottom: 1px solid var(--border); }
.filter-search {
  width: 100%;
  padding: 0.25rem 0.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text);
  font: inherit;
  font-size: 0.8rem;
  outline: none;
}
.filter-search:focus { border-color: var(--primary); }

.filter-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.75rem;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text);
  user-select: none;
}
.filter-option[hidden] { display: none; }
.filter-option:hover { background: var(--surface-hover); }
.filter-option input[type="checkbox"] { accent-color: var(--primary); cursor: pointer; flex-shrink: 0; }

/* ── Results ── */
.results-meta { color: var(--muted); font-size: 0.9rem; margin-bottom: 1rem; }

.sort-bar { display: flex; align-items: center; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1rem; font-size: 0.875rem; }
.sort-bar .sort-label, .filter-bar .sort-label { color: var(--muted); margin-right: 0.25rem; }
.sort-link { padding: 0.25rem 0.65rem; border: 1px solid var(--border); border-radius: 4px; color: var(--text); text-decoration: none; background: var(--surface); }
.sort-link:hover { border-color: var(--primary); color: var(--primary); }
.sort-link.sort-active { background: var(--btn-bg); color: #fff; border-color: var(--btn-bg); }
.sort-divider { width: 1px; height: 1.25rem; background: var(--border); margin: 0 0.25rem; align-self: center; }

.result-list { list-style: none; display: flex; flex-direction: column; gap: 0.75rem; }

.result-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: border-color 0.15s, background 0.15s;
}
.result-card:hover { border-color: var(--primary); background: var(--surface-hover); }

.result-card .frn { font-size: 0.8rem; color: var(--muted); font-family: monospace; }
.result-card .title { font-size: 1.05rem; font-weight: 600; color: var(--primary); margin: 0.15rem 0; }
.result-card .meta { font-size: 0.875rem; color: var(--muted); display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; }

/* ── Legal classification badges ── */
.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.badge-NR      { background: rgba(78, 201, 176, 0.15); color: var(--non-restricted); }
.badge-R       { background: rgba(244, 135, 113, 0.15); color: var(--restricted); }
.badge-P       { background: rgba(197, 134, 192, 0.15); color: var(--prohibited); }
.badge-unknown { background: rgba(133, 133, 133, 0.15); color: var(--muted); }

/* ── Pagination ── */
.pagination { display: flex; gap: 0.4rem; justify-content: center; margin-top: 2rem; flex-wrap: wrap; }
.pagination a, .pagination span {
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--primary);
  font-size: 0.9rem;
  background: var(--surface);
}
.pagination a:hover { background: var(--btn-bg); color: #fff; border-color: var(--btn-bg); }
.pagination .current { background: var(--btn-bg); color: #fff; border-color: var(--btn-bg); font-weight: 700; }
.pagination .disabled { color: var(--muted); pointer-events: none; }

/* ── Detail page ── */
.detail-header { margin-bottom: 1.5rem; }
.detail-header .frn-id { font-size: 0.85rem; color: var(--muted); font-family: monospace; }
.detail-header h1 { font-size: 1.75rem; color: var(--text); margin: 0.2rem 0; }
.detail-header .sub-meta { color: var(--muted); font-size: 0.95rem; }

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.75rem 1.5rem;
  margin-bottom: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.detail-field label { font-size: 0.75rem; font-weight: 700; text-transform: uppercase; color: var(--muted); display: block; }
.detail-field span { font-size: 0.95rem; }

section.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}
section.card h2 { font-size: 1rem; color: var(--primary); margin-bottom: 1rem; border-bottom: 1px solid var(--border); padding-bottom: 0.5rem; }

/* Sub-entries table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th { text-align: left; padding: 0.5rem 0.75rem; background: #2d2d2d; color: var(--muted); font-size: 0.75rem; text-transform: uppercase; border-bottom: 2px solid var(--border); }
td { padding: 0.5rem 0.75rem; border-bottom: 1px solid var(--border); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--surface-hover); }

/* Notes */
.notes-group { margin-bottom: 1rem; }
.notes-group h3 { font-size: 0.85rem; font-weight: 700; color: var(--muted); text-transform: uppercase; margin-bottom: 0.4rem; }
.notes-group ul { padding-left: 1.25rem; }
.notes-group li { margin-bottom: 0.25rem; font-size: 0.9rem; }

/* Cross-references */
.xref-list { list-style: none; display: flex; flex-direction: column; gap: 0.4rem; }
.xref-list a { color: var(--primary); text-decoration: none; font-family: monospace; font-size: 0.9rem; }
.xref-list a:hover { text-decoration: underline; }
.xref-list .xref-desc { color: var(--muted); font-size: 0.85rem; margin-left: 0.5rem; font-family: sans-serif; }

/* PDF viewer button */
.pdf-btn {
  display: inline-block;
  padding: 0.5rem 1.2rem;
  background: var(--btn-bg);
  color: #fff;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
}
.pdf-btn:hover { background: var(--btn-hover); }

/* Disclaimer */
.disclaimer { color: var(--muted); font-size: 0.8rem; max-width: 700px; margin: 0 auto 0.75rem; line-height: 1.6; }
.disclaimer a { color: var(--muted); text-decoration: underline; }
.disclaimer a:hover { color: var(--primary); }

/* No results */
.empty { text-align: center; padding: 3rem 1rem; color: var(--muted); }
.empty h2 { font-size: 1.2rem; margin-bottom: 0.5rem; }

@media (max-width: 600px) {
  header { padding: 0.75rem 1rem; }
  .header-search { max-width: none; width: 100%; }
  main { padding: 1rem; }
}