:root {
  --bg: #0f1115;
  --card-bg: #171a21;
  --border: #262b36;
  --text: #e8eaef;
  --text-dim: #9aa2b1;
  --accent: #ff6b4a;
  --accent-2: #4ade80;
  --danger: #f87171;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Pretendard", "Apple SD Gothic Neo", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.hero {
  padding: 48px 20px 32px;
  text-align: center;
  background: radial-gradient(circle at top, #23283a 0%, var(--bg) 70%);
}

.hero h1 {
  margin: 0 0 8px;
  font-size: 2rem;
}

.tagline {
  color: var(--text-dim);
  max-width: 480px;
  margin: 0 auto;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 16px 60px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.card h2 {
  margin-top: 0;
  font-size: 1.15rem;
}

.search-form, .checker-form {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1 1 160px;
}

label {
  font-size: 0.85rem;
  color: var(--text-dim);
}

select, input {
  background: #0f1218;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
  font-size: 0.95rem;
}

select:focus, input:focus {
  outline: 2px solid var(--accent);
}

.btn-primary {
  background: var(--accent);
  color: #14161c;
  border: none;
  border-radius: 8px;
  padding: 11px 20px;
  font-weight: 700;
  cursor: pointer;
  font-size: 0.95rem;
}

.btn-primary:hover { opacity: 0.9; }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.hint {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin: 10px 0 0;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.summary-item {
  background: #0f1218;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
}

.summary-item .label {
  color: var(--text-dim);
  font-size: 0.8rem;
}

.summary-item .value {
  font-size: 1.15rem;
  font-weight: 700;
  margin-top: 2px;
}

.filter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 18px;
  padding: 14px;
  background: #0f1218;
  border: 1px solid var(--border);
  border-radius: 10px;
}

.filter-item label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.8rem;
}

.filter-item span {
  color: var(--accent);
  font-weight: 700;
}

.filter-item input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.filter-item.checkbox-item {
  display: flex;
  align-items: center;
}

.filter-item.checkbox-item label {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-size: 0.9rem;
}

.filter-item.checkbox-item input {
  width: auto;
}

#listings-table .discount-cell {
  font-weight: 800;
}

#listings-table .discount-cell.hot { color: var(--accent); }
#listings-table .discount-cell.fair { color: var(--accent-2); }
#listings-table .discount-cell.high { color: var(--danger); }

.table-wrap {
  overflow-x: auto;
}

#results-table td.dim {
  color: var(--text-dim);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

th, td {
  text-align: left;
  padding: 9px 8px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

th {
  color: var(--text-dim);
  font-weight: 600;
}

.checker-result {
  margin-top: 18px;
  padding: 18px;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.listings-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.listings-list .checker-result {
  margin-top: 0;
}

.checker-result.hot { border-color: var(--accent); background: rgba(255,107,74,0.08); }
.checker-result.fair { border-color: var(--accent-2); background: rgba(74,222,128,0.08); }
.checker-result.high { border-color: var(--danger); background: rgba(248,113,113,0.08); }

.checker-result .badge {
  display: inline-block;
  font-weight: 800;
  font-size: 1.1rem;
  margin-bottom: 6px;
}

footer {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  padding: 24px 16px 40px;
}

.disclaimer { opacity: 0.7; }