:root {
  --bg: #f0f2f5;
  --surface: #ffffff;
  --surface-alt: #f8f9fb;
  --surface-raised: #ffffff;
  --border: #e2e5ea;
  --border-strong: #cdd1d8;
  --text: #1a1d23;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --accent: #00b0ff;
  --accent-hover: #0091ea;
  --accent-light: #e6f7ff;
  --accent-subtle: rgba(0, 176, 255, 0.08);
  --green: #10b981;
  --green-light: #ecfdf5;
  --orange: #f59e0b;
  --orange-light: #fffbeb;
  --red: #ef4444;
  --red-light: #fef2f2;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 28px rgba(0,0,0,0.12);
  --shadow-accent: 0 4px 14px rgba(0, 176, 255, 0.25);
}

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

/* ===== Topbar ===== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: linear-gradient(135deg, #0ea5e9 0%, #0077b6 100%);
  box-shadow: 0 2px 16px rgba(0, 119, 182, 0.35);
}

.topbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 28px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: 800;
  font-size: 1.1rem;
  color: #fff;
  letter-spacing: -0.02em;
}
.logo-by {
  font-weight: 500;
  font-size: 0.82rem;
  opacity: 0.7;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-hint {
  font-size: 0.82rem;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
}

/* Language switcher */
.lang-switcher {
  position: relative;
}

.lang-btn {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 8px;
  padding: 4px 10px;
  font-size: 1.2rem;
  cursor: pointer;
  line-height: 1;
  transition: background 0.15s;
}
.lang-btn:hover {
  background: rgba(255,255,255,0.25);
}

.lang-dropdown {
  display: none;
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.18);
  min-width: 160px;
  z-index: 200;
  overflow: hidden;
}
.lang-dropdown.open {
  display: block;
}

.lang-option {
  display: block;
  width: 100%;
  padding: 8px 14px;
  border: none;
  background: none;
  text-align: left;
  font-size: 0.92rem;
  cursor: pointer;
  color: #1e293b;
  transition: background 0.12s;
}
.lang-option:hover {
  background: #f0f7ff;
}

/* ===== Page shell ===== */
.page-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 28px 28px 64px;
}

/* ===== Section titles ===== */
.section-title {
  font-size: 1.2rem;
  font-weight: 800;
  margin: 0 0 12px;
  letter-spacing: -0.03em;
  color: var(--text);
}

/* ===== How-to steps ===== */
.how-to-steps {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 18px;
  margin-bottom: 18px;
  font-size: 0.88rem;
  color: var(--text-muted, #555);
  line-height: 1.6;
}
.how-to-steps .steps-intro {
  font-weight: 700;
  color: var(--text);
  margin: 0 0 6px;
  font-size: 0.92rem;
}
.how-to-steps ol {
  margin: 0;
  padding-left: 1.4em;
}
.how-to-steps li {
  margin-bottom: 4px;
}
.how-to-steps li strong {
  color: var(--text);
}
.how-to-steps li em {
  font-style: normal;
  background: var(--bg, #f0f0f0);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.85em;
}

/* ===== Search section ===== */
.search-section {
  margin-bottom: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  box-shadow: var(--shadow-sm);
}

.search-form { display: grid; gap: 10px; }

.field-row {
  display: grid;
  gap: 12px;
}

.field-row.two-col { grid-template-columns: 1fr 1fr; }
.field-row.three-col { grid-template-columns: 1fr 1fr 1fr; }
.field-row.four-col { grid-template-columns: 1fr 1fr 1fr auto; }

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.field.grow { min-width: 0; }
.field.small { min-width: 0; }
.btn-field { justify-content: flex-end; }
.btn-field-full { display: flex; flex-direction: column; gap: 8px; }
.btn-full { width: 100%; padding: 10px; font-size: 1rem; }

.pro-check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}
.pro-check input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  position: relative;
  background: var(--surface);
  flex-shrink: 0;
  transition: background 0.15s, border-color 0.15s;
}
.pro-check input[type="checkbox"]:checked {
  background: var(--accent);
  border-color: var(--accent);
}
.pro-check input[type="checkbox"]:checked::after {
  content: '\2713';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
}

.field-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.search-form input,
.search-form select {
  height: 40px;
  padding: 0 12px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text);
  transition: border-color 150ms, box-shadow 150ms;
  -webkit-appearance: none;
  appearance: none;
}

.search-form select {
  cursor: pointer;
  padding-right: 40px;
  font-size: 0.95rem !important;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
}

.search-form input::placeholder {
  color: var(--text-muted);
}

.search-form input:focus,
.search-form select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 176, 255, 0.15);
}

/* ===== Buttons ===== */
.btn {
  height: 46px;
  padding: 0 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: background 150ms, box-shadow 150ms, transform 80ms;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.5; cursor: wait; }

.btn-primary {
  background: linear-gradient(135deg, #0ea5e9 0%, #0077b6 100%);
  color: white;
  box-shadow: var(--shadow-accent);
}
.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #0077b6 0%, #005a8d 100%);
}

.btn-outline {
  background: var(--surface);
  color: var(--accent);
  border: 1.5px solid var(--accent);
}
.btn-outline:hover:not(:disabled) {
  background: var(--accent-light);
}

.btn-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xs);
  background: var(--surface);
  color: var(--text-secondary);
  font-size: 0.9rem;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 120ms, color 120ms, border-color 120ms;
}
.btn-icon:hover {
  background: var(--red-light);
  color: var(--red);
  border-color: #fca5a5;
}

/* ===== Selected card banner ===== */
.selected-banner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  border: 1.5px solid var(--accent);
  border-radius: var(--radius-sm);
  background: var(--accent-light);
}
.selected-banner[hidden] { display: none; }

.selected-thumb {
  width: 40px;
  height: 56px;
  border-radius: 8px;
  object-fit: cover;
  background: var(--surface-alt);
  flex-shrink: 0;
  box-shadow: var(--shadow-xs);
}

.selected-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.selected-info strong {
  font-size: 0.9rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.selected-set {
  font-size: 0.78rem;
  color: var(--accent-hover);
  font-weight: 500;
}

.avvia-btn {
  padding: 0 16px;
  height: 38px;
  font-size: 0.88rem;
  white-space: nowrap;
  flex-shrink: 0;
}

/* ===== Status bar ===== */
.status-bar {
  margin-top: 12px;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  background: var(--surface-alt);
  font-size: 0.84rem;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Spinner */
@keyframes spin { to { transform: rotate(360deg); } }
.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2.5px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}
.spinner-lg {
  width: 32px;
  height: 32px;
  border-width: 3px;
  margin: 32px auto;
}

.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 40px 20px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Language tip in preview */
.preview-lang-tip {
  padding: 8px 14px;
  background: var(--accent-soft, rgba(59,130,246,0.1));
  border: 1px solid var(--accent, #3b82f6);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}

/* ===== Cards (result panels) ===== */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.card-header {
  padding: 20px 22px 0;
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.card-header h2 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.card-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ===== Results layout ===== */
.results-section { display: grid; gap: 20px; }

.results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* ===== Summary panel ===== */
.summary-hero {
  padding: 20px 22px;
}

.summary-price-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 16px;
}

.metric-card {
  padding: 18px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-alt);
  display: flex;
  gap: 14px;
  align-items: flex-start;
  transition: box-shadow 200ms, transform 200ms;
}
.metric-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}

.metric-icon {
  font-size: 1.5rem;
  line-height: 1;
  flex-shrink: 0;
  margin-top: 2px;
}

.metric-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.accent-card {
  background: linear-gradient(135deg, #0ea5e9 0%, #0077b6 100%);
  border-color: transparent;
  color: #fff;
  box-shadow: var(--shadow-accent);
}
.accent-card .metric-label { color: rgba(255,255,255,0.8); }
.accent-card .metric-value { color: #fff; }
.accent-card .metric-note { color: rgba(255,255,255,0.75); }

.metric-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.metric-value {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.metric-note {
  font-size: 0.76rem;
  color: var(--text-secondary);
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Summary filters */
.summary-filters {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.summary-filters-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.filter-chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 99px;
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--accent-subtle);
  color: var(--accent-hover);
  border: 1px solid rgba(0, 176, 255, 0.2);
}
.filter-chip.muted {
  background: var(--surface-alt);
  color: var(--text-muted);
  border-color: var(--border);
}

/* Summary stats row */
.summary-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 14px 10px;
  background: var(--surface);
}
.stat-num {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
}
.stat-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Summary time-window averages */
.summary-avg-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}
.avg-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 14px 10px;
  border-radius: var(--radius-sm);
  background: var(--surface-alt);
  border: 1px solid var(--border);
}
.avg-period {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.avg-value {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
}
.avg-count {
  font-size: 0.68rem;
  color: var(--text-secondary);
}

/* Summary links */
.summary-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0 22px 16px;
}
.summary-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 7px 16px;
  border-radius: 99px;
  font-size: 0.8rem;
  font-weight: 700;
  text-decoration: none;
  transition: background 150ms, box-shadow 150ms;
}
.summary-link.cm {
  background: var(--accent-subtle);
  color: var(--accent-hover);
  border: 1px solid rgba(0, 176, 255, 0.2);
}
.summary-link.cm:hover {
  background: var(--accent-light);
  box-shadow: var(--shadow-xs);
}
.summary-link.eb {
  background: #fff7ed;
  color: #ea580c;
  border: 1px solid #fed7aa;
}
.summary-link.eb:hover {
  background: #ffedd5;
  box-shadow: var(--shadow-xs);
}

/* Summary alternatives */
.summary-alts {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 0 22px 18px;
}
.summary-alts-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-secondary);
}
.alt-chip {
  padding: 4px 12px;
  border-radius: 99px;
  font-size: 0.76rem;
  font-weight: 600;
  background: var(--surface-alt);
  color: var(--accent);
  border: 1px solid var(--border);
  text-decoration: none;
  transition: background 120ms;
}
.alt-chip:hover {
  background: var(--accent-light);
}

/* ===== Offers panel ===== */
#offers-content,
#ebay-content {
  padding: 16px 22px 22px;
}

/* Condition breakdown */
.condition-table {
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-alt);
  margin-bottom: 14px;
}
.ct-header {
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}
.ct-grid {
  display: grid;
  gap: 8px;
}
.ct-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
}
.ct-price {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text);
  text-align: right;
}
.ct-count {
  font-size: 0.76rem;
  color: var(--text-muted);
  text-align: right;
  min-width: 70px;
}

/* Offer section labels */
.offers-section-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 14px 0 8px;
  margin: 0;
}
.section-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.section-dot.filtered { background: var(--green); }
.section-dot.all { background: var(--accent); }
.section-count {
  background: var(--surface-alt);
  padding: 1px 8px;
  border-radius: 99px;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.offers-list {
  display: grid;
  gap: 8px;
}

/* Individual offer cards */
.offer-card {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  transition: box-shadow 200ms, border-color 200ms;
}
.offer-card:hover {
  box-shadow: var(--shadow);
  border-color: var(--border-strong);
}

.offer-card-left {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.offer-seller {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
}
.pro-icon {
  display: inline-flex;
  align-items: center;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: #fff;
  background: linear-gradient(135deg, #10b981, #059669);
}
.offer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.lang-tag {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 99px;
  background: var(--surface-alt);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.grade-tag {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 99px;
  background: #eff6ff;
  color: #2563eb;
  border: 1px solid #bfdbfe;
}
.offer-comment {
  font-size: 0.76rem;
  color: var(--text-muted);
  font-style: italic;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 350px;
}
.offer-location {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.offer-card-right {
  flex-shrink: 0;
  text-align: right;
}
.offer-price {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.01em;
}

/* ===== Query badge ===== */
.query-badge {
  margin: 0 0 12px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-alt);
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.fallback-badge {
  background: #fef3cd;
  border-color: #ffc107;
  color: #856404;
}

/* ===== eBay list ===== */
.ebay-list {
  display: grid;
  gap: 8px;
}

.ebay-item {
  display: grid;
  grid-template-columns: 68px 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  text-decoration: none;
  color: inherit;
  transition: box-shadow 200ms, border-color 200ms, transform 150ms;
}
.ebay-item:hover {
  box-shadow: var(--shadow);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.ebay-thumb {
  width: 68px;
  height: 68px;
  border-radius: 10px;
  object-fit: cover;
  background: var(--surface-alt);
  flex-shrink: 0;
}
.ebay-thumb-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--text-muted);
}
.ebay-details {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}
.ebay-title {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ebay-date {
  font-size: 0.74rem;
  color: var(--text-muted);
}
.ebay-shipping {
  font-size: 0.72rem;
  color: var(--text-muted);
}
.ebay-price-col {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  flex-shrink: 0;
}
.ebay-price {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--accent-hover);
  letter-spacing: -0.01em;
}

/* ===== Preview overlay ===== */
.preview-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  animation: fadeIn 150ms ease;
}
.preview-overlay[hidden] { display: none; }

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.preview-overlay-inner {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 860px;
  height: 85vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px 0;
}
.preview-header h3 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 800;
}

.preview-close-btn {
  border: 1.5px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 7px 16px;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 120ms;
}
.preview-close-btn:hover { background: var(--surface-alt); }

.preview-status {
  font-size: 0.84rem;
  color: var(--text-secondary);
  padding: 14px 22px 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  grid-auto-rows: minmax(220px, auto);
  gap: 12px;
  padding: 12px 22px 22px;
  overflow-y: scroll;
  -webkit-overflow-scrolling: touch;
  flex: 1;
  min-height: 0;
}

.preview-card {
  display: flex;
  flex-direction: column;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  background: var(--surface);
  cursor: pointer;
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  transition: border-color 150ms, transform 150ms, box-shadow 150ms;
  min-width: 0;
  position: relative;
}
.preview-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.preview-card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent), var(--shadow);
}
.preview-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.preview-img-wrap {
  width: 100%;
  aspect-ratio: 5/7;
  min-height: 140px;
  overflow: hidden;
  background: var(--surface-alt);
  flex-shrink: 0;
}
.preview-card .preview-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px 10px 8px;
  display: grid;
  gap: 2px;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.6) 60%, transparent 100%);
}
.preview-card .preview-name {
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1.3;
  color: #fff;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  text-shadow: 0 1px 3px rgba(0,0,0,0.7);
}
.preview-card .preview-set {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.8);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-shadow: 0 1px 2px rgba(0,0,0,0.6);
}
.preview-card .preview-price {
  font-size: 0.8rem;
  font-weight: 800;
  color: #fbbf24;
  margin-top: 2px;
  text-shadow: 0 1px 3px rgba(0,0,0,0.7);
}
.preview-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-alt);
  color: var(--text-muted);
  font-size: 2.2rem;
}

/* ===== Condition badges ===== */
.cond-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 99px;
  font-size: 0.72rem;
  font-weight: 700;
  background: var(--surface-alt);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  white-space: nowrap;
}
.cond-badge.mint { background: #ecfdf5; color: #059669; border-color: #a7f3d0; }
.cond-badge.nm { background: #ecfdf5; color: #10b981; border-color: #bbf7d0; }
.cond-badge.ex { background: #e6f7ff; color: #0091ea; border-color: #b3e5fc; }
.cond-badge.gd { background: #fffbeb; color: #d97706; border-color: #fde68a; }
.cond-badge.lp { background: #fff7ed; color: #ea580c; border-color: #fed7aa; }
.cond-badge.pl { background: #fef2f2; color: #dc2626; border-color: #fecaca; }
.cond-badge.po { background: #fef2f2; color: #991b1b; border-color: #fecaca; }

/* ===== Empty state ===== */
.empty-state {
  padding: 28px 22px;
  font-size: 0.88rem;
  color: var(--text-muted);
  text-align: center;
}

/* ===== Graded alternatives ===== */
.graded-alternatives {
  padding: 14px 22px 8px;
}
.graded-alternatives-title {
  margin: 0 0 10px;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--orange);
}
.graded-alternatives-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.grade-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--orange-light);
  border: 1px solid #fde68a;
  border-radius: 99px;
  font-size: 0.82rem;
  font-weight: 600;
}
.grade-chip-note {
  font-weight: 400;
  color: var(--text-secondary);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .summary-price-cards { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .results-grid { grid-template-columns: 1fr; }
  .summary-price-cards { grid-template-columns: 1fr; }
  .summary-stats { grid-template-columns: repeat(2, 1fr); }
  .summary-avg-grid { grid-template-columns: repeat(3, 1fr); }
  .field-row.four-col { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .field-row.three-col { grid-template-columns: 1fr 120px; }
  .field-row.three-col .btn-field { grid-column: 1 / -1; }
  .field-row.four-col { grid-template-columns: 1fr 1fr; }
  .field-row.four-col .btn-field { grid-column: 1 / -1; }
  .btn-field { justify-content: stretch; }
  .btn-field .btn { width: 100%; }
  .topbar-inner { padding: 0 16px; }
  .page-shell { padding: 20px 16px 40px; }
}

@media (max-width: 640px) {
  .page-shell { padding: 16px 12px 40px; }
  .search-section { padding: 16px 14px; }
  .topbar-inner { padding: 0 12px; height: 50px; }
  .logo { font-size: 1rem; }
  .logo-by { font-size: 0.75rem; }
  .field-row.two-col,
  .field-row.three-col,
  .field-row.four-col { grid-template-columns: 1fr; }
  .btn-field { justify-content: stretch; }
  .btn-field .btn { width: 100%; white-space: normal; }
  .btn { font-size: 0.88rem; padding: 0 16px; }
  .topbar-hint { display: none; }
  .how-to-steps { padding: 12px 14px; font-size: 0.82rem; }
  .how-to-steps ol { padding-left: 1.2em; }
  .selected-banner { flex-wrap: wrap; gap: 10px; }
  .preview-overlay { padding: 8px; }
  .preview-overlay-inner { height: 92vh; }
  .preview-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; padding: 10px 10px 14px; }
  .card-header { padding: 16px 16px 0; }
  #offers-content, #ebay-content { padding: 14px 16px 16px; }
  .summary-hero { padding: 16px; }
  .summary-avg-grid { gap: 8px; }
  .summary-links { padding: 0 16px 14px; }
  .section-title { font-size: 1.15rem; margin-bottom: 14px; }
}

@media (max-width: 400px) {
  .page-shell { padding: 12px 8px 32px; }
  .search-section { padding: 14px 10px; }
  .topbar-inner { padding: 0 10px; }
  .logo { font-size: 0.92rem; }
  .btn { height: 42px; font-size: 0.84rem; padding: 0 12px; }
  .search-form input, .search-form select { height: 42px; font-size: 0.88rem; }
  .how-to-steps { font-size: 0.78rem; padding: 10px 10px; }
  .lang-btn { font-size: 1rem; padding: 3px 7px; }
  .preview-grid { grid-template-columns: repeat(2, 1fr); gap: 6px; padding: 8px 8px 12px; }
  .preview-card .preview-info { padding: 16px 8px 6px; }
  .preview-card .preview-name { font-size: 0.72rem; }
  .preview-card .preview-set { font-size: 0.66rem; }
  .preview-card .preview-price { font-size: 0.74rem; }
}