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

:root {
  --bg: #07070a;
  --panel: #0c0d12;
  --inset: #14151c;
  --gold: #d9b676;
  --gold-dim: rgba(217, 182, 118, 0.15);
  --green: #7ce0a8;
  --red: #ff5d5d;
  --text: #e8e8ec;
  --muted: #8a8a9a;
  --border: rgba(255, 255, 255, 0.08);
  --radius: 10px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  letter-spacing: -0.02em;
  font-weight: 600;
}

a { color: var(--gold); text-decoration: none; }
a:hover { text-decoration: underline; }

.glow-bg {
  position: fixed;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(217, 182, 118, 0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

header {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 32px;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--gold);
}

.nav-link {
  color: var(--muted);
  font-size: 14px;
  transition: color 0.2s;
}
.nav-link:hover { color: var(--text); text-decoration: none; }

main {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px 80px;
}

.hero {
  text-align: center;
  padding: 60px 0 40px;
}

.hero h1 {
  font-size: 44px;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 16px;
}

.subtitle {
  color: var(--muted);
  font-size: 17px;
  max-width: 560px;
  margin: 0 auto 36px;
}

.search-bar {
  display: flex;
  max-width: 620px;
  margin: 0 auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  overflow: hidden;
  transition: border-color 0.2s;
}
.search-bar:focus-within {
  border-color: rgba(217, 182, 118, 0.4);
}

.search-bar input {
  flex: 1;
  padding: 14px 20px;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 16px;
  font-family: inherit;
  outline: none;
}
.search-bar input::placeholder { color: var(--muted); }

.search-bar button {
  padding: 14px 28px;
  background: var(--gold);
  color: var(--bg);
  border: none;
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
}
.search-bar button:hover { opacity: 0.85; }
.search-bar button:disabled { opacity: 0.5; cursor: wait; }

.search-hints {
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
}
.hint {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s;
  margin-left: 4px;
}
.hint:hover {
  color: var(--gold);
  border-color: rgba(217, 182, 118, 0.3);
}

/* Results */
.results { margin-top: 20px; }

.results-header {
  text-align: center;
  margin-bottom: 24px;
}
.results-header h2 {
  font-size: 22px;
  margin-bottom: 4px;
}
.results-header .meta {
  color: var(--muted);
  font-size: 13px;
}
.results-header .demo-badge {
  display: inline-block;
  background: var(--gold-dim);
  color: var(--gold);
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  margin-left: 8px;
  vertical-align: middle;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* PSA Signal */
.psa-signal {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 28px;
  display: flex;
  gap: 32px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}
.psa-stat {
  text-align: center;
}
.psa-stat .label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 4px;
}
.psa-stat .value {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 22px;
  font-weight: 700;
}
.psa-stat .value.easy { color: var(--green); }
.psa-stat .value.hard { color: var(--red); }
.psa-stat .value.moderate { color: var(--gold); }

.results-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: start;
}

.list-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.list-tab {
  background: none;
  border: none;
  color: var(--muted);
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.02em;
  padding: 4px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}
.list-tab:hover { color: var(--text); }
.list-tab.active {
  color: var(--gold);
  background: var(--gold-dim);
}

.source-filters {
  display: flex;
  gap: 6px;
  margin-bottom: 10px;
}
.source-filter {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 14px;
  cursor: pointer;
  transition: all 0.2s;
}
.source-filter:hover { color: var(--text); border-color: rgba(255,255,255,0.15); }
.source-filter.active {
  color: var(--gold);
  border-color: var(--gold);
  background: var(--gold-dim);
}

.results-right {
  position: sticky;
  top: 20px;
}

.detail-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  min-height: 300px;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.08) transparent;
}
.detail-panel::-webkit-scrollbar { width: 6px; }
.detail-panel::-webkit-scrollbar-track { background: transparent; }
.detail-panel::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 3px; }
.detail-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 260px;
  color: var(--muted);
  font-size: 14px;
}

.card-list { display: flex; flex-direction: column; gap: 10px; }

.listing-card {
  display: flex;
  gap: 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  transition: border-color 0.2s;
  cursor: pointer;
}
.listing-card:hover {
  border-color: rgba(217, 182, 118, 0.25);
}
.listing-card.selected {
  border-color: rgba(217, 182, 118, 0.5);
  background: rgba(217, 182, 118, 0.04);
}

.detail-images {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  overflow-x: auto;
  padding-bottom: 4px;
}
.detail-images img {
  width: 72px;
  height: 100px;
  border-radius: 6px;
  object-fit: cover;
  background: var(--inset);
  flex-shrink: 0;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: border-color 0.2s;
}
.detail-images img:hover {
  border-color: var(--gold);
}
.detail-images img.active-img {
  border-color: var(--gold);
}

.detail-main-img {
  display: block;
  width: 100%;
  max-width: 260px;
  border-radius: 8px;
  margin: 0 auto 12px;
  background: var(--inset);
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 16px;
  margin-bottom: 12px;
}
.detail-field {
  font-size: 13px;
}
.detail-field .detail-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-bottom: 2px;
}
.detail-field .detail-value {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-weight: 500;
}

/* Summary hero — price + grade at a glance */
.detail-summary {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--inset);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  margin-bottom: 12px;
}
.detail-summary-price {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: var(--gold);
}
.detail-summary-shipping {
  font-size: 12px;
  color: var(--muted);
  margin-top: 1px;
}
.detail-summary-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
  flex-shrink: 0;
}
.detail-summary-grade {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}
.detail-summary-grade-score {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
}
.detail-summary-grade-meta {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.4;
}
.detail-summary-grade-meta span {
  display: block;
  color: var(--gold);
  opacity: 0.85;
}
.detail-summary-slab-badge {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
}

.detail-grade {
  background: var(--inset);
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold);
  border-radius: 0 8px 8px 0;
  padding: 14px 16px;
  margin-bottom: 12px;
}
.detail-grade-section-label {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gold);
  margin-bottom: 12px;
}
.grade-bar-lowest .bar-label {
  color: var(--red);
}
.detail-grade-bars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.grade-bar-item {
  text-align: center;
}
.grade-bar-item .bar-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-bottom: 6px;
}
.grade-bar-track {
  height: 6px;
  background: rgba(255,255,255,0.06);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 6px;
}
.grade-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.4s ease;
}
.grade-bar-item .bar-value {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 14px;
  font-weight: 600;
}
.detail-grade-notes {
  margin-top: 12px;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}
.detail-grade-limitations {
  margin-top: 6px;
  font-size: 11px;
  color: var(--muted);
  opacity: 0.6;
  font-style: italic;
}

.detail-actions {
  display: flex;
  gap: 10px;
  margin-top: 4px;
}
.detail-actions a {
  display: inline-block;
  padding: 8px 16px;
  background: var(--gold);
  color: var(--bg);
  border-radius: 6px;
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 13px;
  font-weight: 600;
  transition: opacity 0.2s;
}
.detail-actions a:hover { opacity: 0.85; text-decoration: none; }

.listing-card .thumb {
  width: 72px;
  height: 100px;
  border-radius: 6px;
  object-fit: cover;
  background: var(--inset);
  flex-shrink: 0;
}

.listing-card .info {
  flex: 1;
  min-width: 0;
}

.listing-card .title {
  font-size: 13px;
  font-weight: 500;
  line-height: 1.3;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.listing-card .price-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 4px;
}

.listing-card .price {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--gold);
}

.listing-card .shipping {
  font-size: 12px;
  color: var(--muted);
}

.listing-card .condition {
  font-size: 12px;
  color: var(--muted);
}

.listing-card .sold-date {
  font-size: 11px;
  color: var(--muted);
  margin-top: 2px;
}

.listing-card a.view-link {
  display: inline-block;
  margin-top: 6px;
  font-size: 12px;
  color: var(--gold);
  opacity: 0.7;
  transition: opacity 0.2s;
}
.listing-card a.view-link:hover { opacity: 1; text-decoration: none; }

.grade-chip {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 13px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 4px;
  background: rgba(255,255,255,0.05);
}
.source-tag {
  font-size: 10px;
  font-weight: 600;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 1px 5px;
  border-radius: 3px;
  letter-spacing: 0.03em;
  margin-left: auto;
}
.slab-chip {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--gold-dim);
  color: var(--gold);
  letter-spacing: 0.03em;
}

.detail-title {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 14px;
}

/* No results */
.no-results {
  text-align: center;
  padding: 40px 0;
  color: var(--muted);
}

/* Alert section */
.alert-section { margin-top: 32px; }
.alert-box {
  max-width: 480px;
  margin: 0 auto;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  text-align: center;
}
.alert-box h3 {
  font-size: 18px;
  margin-bottom: 6px;
}
.alert-box > p {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 16px;
}

#alert-form {
  display: flex;
  gap: 8px;
}
#alert-form input {
  flex: 1;
  padding: 10px 14px;
  background: var(--inset);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  outline: none;
}
#alert-form input:focus { border-color: rgba(217, 182, 118, 0.3); }
#alert-form button {
  padding: 10px 20px;
  background: var(--gold);
  color: var(--bg);
  border: none;
  border-radius: 6px;
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
}
#alert-form button:hover { opacity: 0.85; }

.alert-msg {
  margin-top: 12px;
  font-size: 13px;
  color: var(--green);
}

/* Features grid */
.empty-state { margin-top: 40px; }
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
}
.feature-icon {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--gold);
  width: 48px;
  height: 48px;
  line-height: 48px;
  border-radius: 12px;
  background: var(--gold-dim);
  margin: 0 auto 14px;
}
.feature h3 {
  font-size: 16px;
  margin-bottom: 8px;
}
.feature p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

/* Loading */
.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
  margin-right: 8px;
}
@keyframes spin { to { transform: rotate(360deg); } }

footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 40px 32px;
  color: var(--muted);
  font-size: 13px;
  border-top: 1px solid var(--border);
  max-width: 1200px;
  margin: 0 auto;
}

.hidden { display: none !important; }

/* Mobile */
@media (max-width: 768px) {
  .hero h1 { font-size: 28px; }
  .subtitle { font-size: 15px; }
  .results-layout { grid-template-columns: 1fr; }
  .results-right { position: static; }
  .features { grid-template-columns: 1fr; }
  .psa-signal { gap: 20px; }
  header { padding: 16px 20px; }
  main { padding: 0 20px 60px; }
  #alert-form { flex-direction: column; }
  .search-bar { flex-direction: column; }
  .search-bar button { padding: 12px; }
}