:root {
  --bg: #f4efe6;
  --bg-accent: #e6dcc8;
  --panel: rgba(255, 250, 241, 0.86);
  --panel-strong: rgba(255, 248, 235, 0.96);
  --ink: #1f2a24;
  --muted: #5f6c63;
  --line: rgba(31, 42, 36, 0.12);
  --brand: #1f6a52;
  --brand-strong: #0f4f3b;
  --brand-soft: rgba(31, 106, 82, 0.12);
  --warm: #d58f48;
  --danger: #b34d35;
  --shadow: 0 20px 60px rgba(74, 58, 33, 0.12);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --font-sans: "IBM Plex Sans", "PingFang SC", "Microsoft YaHei UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-sans);
  background:
    radial-gradient(circle at top left, rgba(213, 143, 72, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(31, 106, 82, 0.18), transparent 24%),
    linear-gradient(180deg, #fbf7f1 0%, var(--bg) 48%, #efe6d7 100%);
}

button,
input,
select,
textarea {
  font: inherit;
}

.page-shell {
  width: min(1480px, calc(100% - 32px));
  margin: 24px auto 40px;
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.52), rgba(255, 255, 255, 0.18)),
    linear-gradient(135deg, rgba(31, 106, 82, 0.16), rgba(213, 143, 72, 0.12));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brand);
}

.hero h1 {
  margin: 0;
  font-size: clamp(32px, 4.8vw, 54px);
  line-height: 0.98;
}

.hero-text {
  max-width: 760px;
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.hero-badge {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--panel-strong);
  border: 1px solid var(--line);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
}

.status-chip.muted {
  color: var(--muted);
}

.status-chip.good {
  background: rgba(31, 106, 82, 0.12);
  color: var(--brand-strong);
}

.status-chip.warn {
  background: rgba(213, 143, 72, 0.16);
  color: #8c5a21;
}

.status-chip.bad {
  background: rgba(179, 77, 53, 0.12);
  color: var(--danger);
}

.layout {
  display: grid;
  grid-template-columns: 1.1fr 1.2fr 1.7fr 1.3fr;
  gap: 18px;
  margin-top: 18px;
  align-items: start;
}

.panel {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.panel-head h2 {
  margin: 0;
  font-size: 20px;
}

.panel-summary,
.detail-status,
.help-text {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.filters-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field span {
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid rgba(31, 42, 36, 0.14);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.72);
  color: var(--ink);
  outline: none;
  transition: border-color 150ms ease, transform 150ms ease, box-shadow 150ms ease;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: rgba(31, 106, 82, 0.48);
  box-shadow: 0 0 0 4px rgba(31, 106, 82, 0.1);
}

.field textarea {
  resize: vertical;
  min-height: 98px;
}

.token-actions,
.book-actions,
.pager,
.result-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.primary-btn,
.secondary-btn,
.ghost-btn {
  border: 0;
  border-radius: 999px;
  padding: 11px 16px;
  cursor: pointer;
  transition: transform 150ms ease, opacity 150ms ease, background-color 150ms ease;
}

.primary-btn:hover,
.secondary-btn:hover,
.ghost-btn:hover {
  transform: translateY(-1px);
}

.primary-btn {
  background: linear-gradient(135deg, var(--brand), var(--brand-strong));
  color: white;
}

.secondary-btn {
  background: rgba(31, 106, 82, 0.1);
  color: var(--brand-strong);
}

.ghost-btn {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
}

.results-panel {
  min-height: 70vh;
}

.results-head {
  align-items: flex-start;
}

.books-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.book-card {
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(31, 42, 36, 0.12);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.84), rgba(250, 244, 234, 0.76)),
    var(--panel-strong);
}

.book-card-head {
  display: flex;
  justify-content: space-between;
  gap: 14px;
}

.book-title {
  margin: 6px 0 0;
  font-size: 18px;
  line-height: 1.35;
}

.book-meta,
.book-tags {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.book-tags {
  margin-top: 12px;
  min-height: 42px;
}

.book-chip {
  display: inline-flex;
  align-items: center;
  height: fit-content;
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(213, 143, 72, 0.12);
  color: #8c5a21;
  font-size: 12px;
  font-weight: 700;
}

.book-actions {
  margin-top: 14px;
}

.detail-preview {
  max-height: 72vh;
  overflow: auto;
}

.empty-state {
  padding: 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.56);
  color: var(--muted);
  line-height: 1.7;
}

.detail-card {
  display: grid;
  gap: 14px;
}

.detail-title {
  margin: 0;
  font-size: 24px;
}

.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.detail-meta span {
  display: inline-flex;
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(31, 106, 82, 0.08);
  color: var(--brand-strong);
  font-size: 12px;
  font-weight: 700;
}

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

.raw-box {
  margin: 0;
  padding: 16px;
  border-radius: var(--radius-md);
  background: #18211d;
  color: #dce9e2;
  font-size: 12px;
  line-height: 1.6;
  overflow: auto;
}

code {
  font-family: "IBM Plex Mono", "Cascadia Code", monospace;
}

@media (max-width: 1280px) {
  .layout {
    grid-template-columns: 1fr 1fr;
  }

  .results-panel,
  .detail-panel {
    grid-column: span 2;
  }
}

@media (max-width: 860px) {
  .page-shell {
    width: min(100% - 20px, 100%);
    margin-top: 10px;
  }

  .hero {
    flex-direction: column;
    padding: 22px;
  }

  .hero-badge {
    align-items: flex-start;
  }

  .layout {
    grid-template-columns: 1fr;
  }

  .results-panel,
  .detail-panel {
    grid-column: auto;
  }

  .filters-grid,
  .books-grid {
    grid-template-columns: 1fr;
  }
}