/* TLSdex — plain CSS, no frameworks. Dark by default. */

:root {
  --bg: #14171c;
  --bg-raised: #1b1f26;
  --bg-raised-2: #212630;
  --border: #2a303c;
  --border-strong: #3a4150;
  --text: #e6e9ef;
  --text-dim: #a3abba;
  --text-dimmer: #767f8f;
  --accent: #4fd1e0;
  --accent-strong: #7fe3ee;
  --accent-contrast: #052226;
  --danger-quiet: #d98e73;
  --focus-ring: #7fe3ee;
  --radius-sm: 4px;
  --radius-md: 6px;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
}

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}

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

code, kbd {
  font-family: var(--mono);
  background: var(--bg-raised-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.1em 0.4em;
  font-size: 0.9em;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 10px 16px;
  z-index: 100;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus {
  left: 0;
}

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

/* ---------- Header ---------- */
.site-header {
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.wordmark {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.wordmark-tls {
  color: var(--text);
  font-weight: 800;
}
.wordmark-dex {
  color: var(--accent);
  font-weight: 500;
  font-style: normal;
}

/* ---------- Hero ---------- */
.hero {
  padding: 48px 0 32px;
  border-bottom: 1px solid var(--border);
}
.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  line-height: 1.05;
  margin: 0 0 14px;
  letter-spacing: -0.01em;
}
.hero-title .wordmark-tls { font-size: 1em; }
.hero-title .wordmark-dex { font-size: 1em; }

.tagline {
  margin: 0;
  font-size: 1.15rem;
  color: var(--text-dim);
}
.tagline-secondary {
  color: var(--text-dimmer);
  font-size: 1rem;
  margin-bottom: 24px;
}

.search-form {
  display: flex;
  gap: 10px;
  max-width: 640px;
  margin-top: 8px;
}
.search-input {
  flex: 1;
  font-size: 1.05rem;
  font-family: var(--mono);
  padding: 14px 16px;
  background: var(--bg-raised);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  color: var(--text);
}
.search-input::placeholder {
  color: var(--text-dimmer);
  font-family: var(--sans);
}
.search-input:focus {
  border-color: var(--accent);
}
.search-submit {
  font-size: 1rem;
  padding: 14px 20px;
  background: var(--accent);
  color: var(--accent-contrast);
  border: none;
  border-radius: var(--radius-md);
  font-weight: 700;
  cursor: pointer;
}
.search-submit:hover { background: var(--accent-strong); }

.search-hint {
  color: var(--text-dimmer);
  font-size: 0.85rem;
  margin-top: 12px;
}

/* ---------- Controls / tabs ---------- */
.controls {
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.register-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tab {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.9rem;
  cursor: pointer;
  min-height: 36px;
}
.tab:hover {
  border-color: var(--border-strong);
  color: var(--text);
}
.tab[aria-selected="true"] {
  background: var(--accent);
  color: var(--accent-contrast);
  border-color: var(--accent);
  font-weight: 700;
}

/* ---------- Results ---------- */
.results-section {
  padding: 28px 0 60px;
}
.result-count {
  color: var(--text-dim);
  margin: 0 0 16px;
  font-size: 0.95rem;
}

.possible-identifiers {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  margin-bottom: 24px;
}
.section-heading {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  margin: 0 0 8px;
}
.disclaimer-inline {
  color: var(--text-dimmer);
  font-size: 0.85rem;
  margin: 0 0 14px;
}
.pid-group {
  margin-bottom: 14px;
}
.pid-group h3 {
  font-size: 0.85rem;
  color: var(--accent-strong);
  margin: 0 0 6px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.pid-group ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.pid-chip {
  background: var(--bg-raised-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  font-family: var(--mono);
  font-size: 0.85rem;
  cursor: pointer;
  color: var(--text);
}
.pid-chip:hover {
  border-color: var(--accent);
}

.results-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 900px) {
  .results-layout.has-detail {
    grid-template-columns: 1fr 380px;
  }
}

/* Table (wide screens) */
.results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
.results-table caption { display: none; }
.results-table th {
  text-align: left;
  color: var(--text-dimmer);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-strong);
}
.results-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.results-table tbody tr {
  cursor: pointer;
}
.results-table tbody tr:hover,
.results-table tbody tr:focus-within {
  background: var(--bg-raised);
}
.results-table tbody tr.selected {
  background: var(--bg-raised-2);
  outline: 1px solid var(--accent);
  outline-offset: -1px;
}
.results-table .col-name {
  font-family: var(--mono);
  word-break: break-word;
}
.results-table .col-hex,
.results-table .col-dec {
  font-family: var(--mono);
  color: var(--text-dim);
  white-space: nowrap;
}
.reg-badge {
  display: inline-block;
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  color: var(--text-dim);
  white-space: nowrap;
}
.rec-badge {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* Cards (narrow screens) */
.results-cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: none;
}
.result-card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  margin-bottom: 10px;
  cursor: pointer;
}
.result-card:hover, .result-card:focus-within {
  border-color: var(--border-strong);
}
.result-card.selected {
  outline: 1px solid var(--accent);
}
.result-card .card-name {
  font-family: var(--mono);
  font-size: 0.98rem;
  margin-bottom: 6px;
  word-break: break-word;
}
.result-card .card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.82rem;
  color: var(--text-dim);
  font-family: var(--mono);
}

@media (max-width: 720px) {
  .results-table { display: none; }
  .results-cards { display: block; }
}

.empty-state {
  color: var(--text-dimmer);
  padding: 40px 0;
  text-align: center;
}

/* Detail panel */
.detail-panel {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  position: relative;
  align-self: start;
}
.detail-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: var(--radius-sm);
  width: 32px;
  height: 32px;
  cursor: pointer;
}
.detail-close:hover { color: var(--text); border-color: var(--border-strong); }
.detail-heading {
  font-family: var(--mono);
  font-size: 1.1rem;
  margin: 0 28px 14px 0;
  word-break: break-word;
}
.detail-fields {
  margin: 0;
}
.detail-fields dt {
  color: var(--text-dimmer);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-top: 12px;
}
.detail-fields dt:first-child { margin-top: 0; }
.detail-fields dd {
  margin: 4px 0 0;
  font-family: var(--mono);
  font-size: 0.92rem;
  word-break: break-word;
}
.detail-fields dd.prose {
  font-family: var(--sans);
}
.copy-btn {
  background: var(--bg-raised-2);
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  padding: 2px 8px;
  margin-left: 8px;
  cursor: pointer;
  vertical-align: middle;
}
.copy-btn:hover { border-color: var(--accent); color: var(--text); }

/* ---------- About / disclosure ---------- */
.about {
  padding: 36px 0 60px;
  border-top: 1px solid var(--border);
}
.about p {
  color: var(--text-dim);
  max-width: 720px;
}
.disclosure, .disclosure-note {
  font-size: 0.85rem;
  color: var(--text-dimmer);
}
.noscript-notice {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  padding: 14px 16px;
  border-radius: var(--radius-md);
  color: var(--text);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 20px 0 40px;
  color: var(--text-dimmer);
  font-size: 0.85rem;
}

/* ---------- Motion ---------- */
@media (prefers-reduced-motion: no-preference) {
  .tab, .search-input, .results-table tbody tr, .result-card, .copy-btn, .pid-chip {
    transition: background-color 120ms ease, border-color 120ms ease, color 120ms ease;
  }
}

/* ---------- 320px sanity ---------- */
@media (max-width: 360px) {
  .wrap { padding: 0 14px; }
  .search-form { flex-direction: column; }
  .search-submit { width: 100%; }
  .hero-title { font-size: 2.1rem; }
}