:root {
  color-scheme: light;
  --bg: #fff7ed;
  --surface: #ffffff;
  --surface-soft: #fffaf5;
  --text: #1c1917;
  --muted: #57534e;
  --border: #e7e5e4;
  --orange: #f97316;
  --orange-dark: #c2410c;
  --blue: #2563eb;
  --green: #16a34a;
  --red: #dc2626;
  --shadow: 0 16px 40px rgba(28, 25, 23, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(180deg, #fff7ed 0%, #ffffff 34%);
  color: var(--text);
  font-family: "Noto Sans TC", "Microsoft JhengHei", Arial, sans-serif;
}

button,
input {
  font: inherit;
}

.app-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 48px;
}

.search-panel {
  display: grid;
  gap: 24px;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--orange-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(32px, 5vw, 54px);
  line-height: 1.12;
  letter-spacing: 0;
}

.lead {
  max-width: 720px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

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

.search-box label {
  color: var(--text);
  font-size: 15px;
  font-weight: 700;
}

.search-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

.search-row input {
  min-width: 0;
  height: 52px;
  padding: 0 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--text);
  outline: none;
}

.search-row input:focus {
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.18);
}

.search-row button,
.quick-actions button {
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 700;
}

.search-row button {
  min-width: 96px;
  padding: 0 22px;
  background: var(--orange);
  color: #ffffff;
}

.quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.quick-actions button {
  padding: 9px 13px;
  background: #ffedd5;
  color: var(--orange-dark);
}

.notice {
  margin: 18px 0;
  padding: 14px 16px;
  border: 1px solid #fed7aa;
  border-radius: 8px;
  background: #fff7ed;
  color: var(--muted);
  line-height: 1.65;
}

.notice strong {
  color: var(--orange-dark);
  margin-right: 8px;
}

.follow-panel {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0;
}

.follow-panel a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--blue);
  font-weight: 700;
  text-decoration: none;
}

.follow-panel a:focus,
.follow-panel a:hover {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.14);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 18px 0;
}

.summary-grid div,
.result-card,
.empty-state {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}

.summary-grid div {
  padding: 15px;
}

.summary-grid span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.summary-grid strong {
  display: block;
  margin-top: 4px;
  font-size: 20px;
}

.results {
  display: grid;
  gap: 14px;
}

.result-card {
  overflow: hidden;
}

.result-header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  padding: 20px;
  border-bottom: 1px solid var(--border);
}

.result-title {
  margin: 0;
  font-size: 22px;
  line-height: 1.35;
}

.result-subtitle {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.potency-badge {
  align-self: start;
  min-width: 124px;
  padding: 10px 12px;
  border-radius: 8px;
  color: #ffffff;
  text-align: center;
}

.class-1 {
  background: #991b1b;
}

.class-2 {
  background: var(--red);
}

.class-3,
.class-4,
.class-5 {
  background: var(--orange);
}

.class-6,
.class-7 {
  background: var(--green);
}

.potency-badge span {
  display: block;
  font-size: 13px;
}

.potency-badge strong {
  display: block;
  font-size: 20px;
}

.result-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.8fr);
  gap: 18px;
  padding: 20px;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.field {
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-soft);
}

.field span,
.site-list span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.field strong {
  display: block;
  margin-top: 4px;
  overflow-wrap: anywhere;
  line-height: 1.45;
}

.site-list {
  display: grid;
  gap: 10px;
}

.site-list div {
  padding: 12px;
  border-radius: 8px;
  background: #f8fafc;
}

.site-list strong {
  display: block;
  margin-top: 4px;
  line-height: 1.55;
}

.warning {
  color: var(--red);
}

.empty-state {
  padding: 22px;
  color: var(--muted);
  line-height: 1.7;
}

.source-note {
  margin-top: 14px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

@media (max-width: 760px) {
  .app-shell {
    width: min(100% - 20px, 1120px);
    padding-top: 16px;
  }

  .search-panel {
    padding: 20px;
  }

  .search-row,
  .result-header,
  .result-body,
  .field-grid,
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .search-row button {
    height: 48px;
  }

  .potency-badge {
    width: 100%;
  }
}