:root {
  --amber: #c9a24a;
  --amber-700: #a8842f;
  --charcoal: #2a2a2a;
  --warm-bg: #fafaf7;
  --border: rgba(0, 0, 0, .08);
  --border-soft: rgba(0, 0, 0, .06);
  --muted: #6c6c6c;
  --muted-2: #8a8a8a;
  --success: #198754;
  --success-bg: rgba(25, 135, 84, .04);
  --success-border: rgba(25, 135, 84, .35);
  --danger: #b02a37;
  --danger-bg: rgba(220, 53, 69, .03);
  --radius: .5rem;
  --radius-lg: .75rem;
  --shadow: 0 8px 24px rgba(20, 20, 20, .06), 0 2px 6px rgba(20, 20, 20, .04);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--charcoal);
  background: #fff;
  line-height: 1.5;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1 0 auto; padding: 2rem 0; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1rem;
}

a { color: var(--amber-700); }
a:hover { color: var(--charcoal); }
h1, h2, h3, h4, h5 { font-weight: 600; letter-spacing: -0.01em; }
h1 { font-size: 2.25rem; margin: 0 0 1rem; }
h3 { font-size: 1.375rem; }
h5 { font-size: 1rem; margin-top: 1.75rem; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.mb-3 { margin-bottom: .75rem; }
.mb-4 { margin-bottom: 1rem; }

/* -------- Header -------- */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border-soft);
}
.nav-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: .75rem 1rem;
}
.brand { display: inline-flex; align-items: center; }
.brand img { display: block; height: 40px; width: auto; }
.nav {
  margin-left: auto;
  display: flex;
  gap: .5rem;
}
.nav-link {
  display: inline-block;
  padding: .5rem .75rem;
  color: var(--charcoal);
  text-decoration: none;
  font-weight: 500;
  border-radius: var(--radius);
  transition: color .15s, background .15s;
}
.nav-link:hover, .nav-link.active { color: var(--amber-700); }
.nav-toggle {
  display: none;
  background: none;
  border: 0;
  padding: .5rem;
  cursor: pointer;
  margin-left: auto;
  gap: 4px;
  flex-direction: column;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--charcoal);
  border-radius: 2px;
}

@media (max-width: 700px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border-soft);
    flex-direction: column;
    padding: .5rem 1rem 1rem;
    margin: 0;
    gap: 0;
    display: none;
    z-index: 20;
  }
  .nav.open { display: flex; }
}

/* -------- Search hero -------- */
.search-hero {
  max-width: 560px;
  margin: 2rem auto 0;
}
.lead-question {
  font-size: 1.35rem;
  font-weight: 600;
  margin: 0 0 .25rem;
}
.search-card {
  background: #fff;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow);
}
.disclaimer {
  font-size: .85rem;
  color: var(--muted);
  margin-top: 1.25rem;
  line-height: 1.5;
}

/* -------- Form -------- */
.form-label { display: block; font-weight: 500; margin-bottom: .35rem; }
.input-row {
  display: flex;
  gap: .5rem;
}
.chip-input {
  flex: 1 1 auto;
  min-width: 0;
  font: inherit;
  font-size: 1.125rem;
  padding: .625rem .875rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  color: var(--charcoal);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.05em;
  transition: border-color .15s, box-shadow .15s;
}
.chip-input:focus {
  outline: none;
  border-color: var(--amber);
  box-shadow: 0 0 0 3px rgba(201, 162, 74, .2);
}
.chip-input::placeholder { color: rgba(0,0,0,.28); font-weight: 400; letter-spacing: .02em; }
.chip-input.is-valid { border-color: var(--success); }
.chip-input.is-invalid { border-color: var(--danger); }

.btn {
  font: inherit;
  font-weight: 500;
  padding: .625rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .15s, color .15s, opacity .15s;
}
.btn-primary {
  background: var(--amber);
  color: #fff;
}
.btn-primary:hover:not(:disabled) { background: var(--amber-700); }
.btn:disabled { opacity: .55; cursor: not-allowed; }

.input-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: .5rem;
  min-height: 1.25rem;
}
.hint { color: var(--danger); }
.form-text-success { color: var(--success); }

.alert {
  background: rgba(220, 53, 69, .08);
  border: 1px solid rgba(220, 53, 69, .3);
  color: var(--danger);
  padding: .625rem .875rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: .9rem;
}

/* -------- Results list -------- */
.results { margin-top: 1.5rem; }
.results h3 { font-size: 1.125rem; margin: 0 0 .25rem; }

.result-row {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .85rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  background: #fff;
  transition: border-color .15s, background .15s;
  margin-bottom: .5rem;
}
.result-row.is-found {
  border-color: var(--success-border);
  background: var(--success-bg);
}
.result-row.is-found:hover {
  border-color: rgba(25,135,84,.6);
  background: rgba(25,135,84,.08);
}
.result-row.is-error { border-color: rgba(220, 53, 69, .25); background: var(--danger-bg); }
.result-row.is-missing { color: var(--muted); }
.result-row.is-pending { color: var(--muted); background: rgba(0,0,0,.015); }

.result-icon {
  width: 1.5rem; height: 1.5rem;
  flex: 0 0 auto;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 999px;
  font-size: .9rem;
}
.result-icon.is-found   { background: var(--success); color: #fff; }
.result-icon.is-error   { background: rgba(220, 53, 69, .12); color: var(--danger); }
.result-icon.is-missing { background: rgba(0, 0, 0, .06); color: var(--muted-2); }
.result-icon.is-pending { background: transparent; }

.result-name { font-weight: 500; flex: 1 1 auto; }
.result-meta { font-size: .85rem; color: var(--muted-2); }
.result-chevron { color: #adadad; }

.spinner {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  border: 2px solid rgba(201, 162, 74, .25);
  border-top-color: var(--amber-700);
  border-radius: 999px;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* -------- Long-form pages -------- */
.prose {
  max-width: 70ch;
  margin: 0 auto;
}
.prose p { line-height: 1.65; }
.prose h1 { margin-bottom: 1rem; }
.prose h3 { margin-top: 2rem; }
.prose ul { line-height: 1.65; }

/* -------- Databank grid -------- */
.databank-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem 2rem;
  align-items: center;
  margin: 1.5rem 0 2.5rem;
}
.databank-grid a { display: flex; align-items: center; justify-content: center; }
.databank-grid img {
  max-width: 100%;
  max-height: 56px;
  filter: grayscale(20%);
  opacity: .85;
  transition: opacity .15s, filter .15s;
}
.databank-grid a:hover img { opacity: 1; filter: none; }
@media (min-width: 576px) { .databank-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 992px) { .databank-grid { grid-template-columns: repeat(5, 1fr); } }

/* -------- FAQ (native <details>) -------- */
.faq { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.faq-item { border-top: 1px solid var(--border); }
.faq-item:first-child { border-top: 0; }
.faq-item summary {
  cursor: pointer;
  padding: 1rem 1.25rem;
  font-weight: 500;
  background: #fff;
  list-style: none;
  position: relative;
  padding-right: 2.5rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "";
  position: absolute;
  right: 1.25rem;
  top: 50%;
  width: 8px; height: 8px;
  border-right: 2px solid var(--charcoal);
  border-bottom: 2px solid var(--charcoal);
  transform: translateY(-70%) rotate(45deg);
  transition: transform .2s;
}
.faq-item[open] summary { color: var(--amber-700); background: rgba(201,162,74,.06); }
.faq-item[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
.faq-body { padding: 0 1.25rem 1rem; }

/* -------- Footer -------- */
.site-footer {
  background: var(--warm-bg);
  border-top: 1px solid var(--border-soft);
  color: var(--muted);
  font-size: .875rem;
  padding: 1rem 0;
  margin-top: auto;
}
.footer-row {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  padding: 0 1rem;
}
@media (min-width: 700px) {
  .footer-row {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}
.footer-credit {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  color: var(--muted-2);
  font-size: .8125rem;
  text-decoration: none;
}
.footer-credit img {
  display: block;
  opacity: .55;
  transition: opacity .2s ease;
}
.footer-credit:hover img { opacity: 1; }