:root {
  --bg: #0a0a0b;
  --surface: #111214;
  --surface-2: #151618;
  --surface-3: #18191c;
  --border: #23252a;
  --border-strong: #31343a;
  --text: #f3f4f6;
  --muted: #9ca3af;
  --muted-2: #6b7280;
  --accent: #d4d4d8;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.42);
  --top-box-height: 68px;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "Manrope", sans-serif;
}

body::before {
  position: fixed;
  inset: 0;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.45), transparent 85%);
}

.page-shell {
  width: min(1320px, calc(100% - 32px));
  margin: 0 auto;
  padding: 12px 0 40px;
}

.controls,
.library-section {
  border: 1px solid var(--border);
  background: var(--surface);
}

h2,
h3 {
  margin: 0;
  font-family: "Manrope", sans-serif;
  font-weight: 800;
  letter-spacing: -0.04em;
}

h2 {
  font-size: 1.55rem;
  line-height: 1;
}

.results-text,
.book-author,
.book-date,
.cover-placeholder,
.detail-author,
.detail-date,
.detail-section-label {
  color: var(--muted);
}

main {
  margin-top: 0;
}

.controls {
  position: sticky;
  top: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 280px) 68px 68px 68px;
  gap: 12px;
  padding: 12px;
  align-items: stretch;
  backdrop-filter: blur(10px);
  background: rgba(17, 18, 20, 0.92);
  will-change: transform, opacity;
  transition:
    transform 260ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 220ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.controls-main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 190px;
  gap: 10px;
  align-items: stretch;
}

.controls-main > *,
.stats-strip > * {
  height: var(--top-box-height);
}

.top-link-button,
.add-book-button {
  width: 68px;
  height: var(--top-box-height);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.1;
  text-transform: uppercase;
  cursor: pointer;
  display: grid;
  place-items: center;
  text-decoration: none;
}

.top-link-button {
  padding: 10px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent),
    var(--surface-2);
}

.top-link-button-save {
  width: auto;
  min-width: 132px;
  padding: 0 18px;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.top-link-button-icon {
  padding: 0;
  letter-spacing: 0;
  font-size: 1.6rem;
  line-height: 1;
}

.top-link-button-icon svg {
  width: 24px;
  height: 24px;
  stroke: #e5e7eb;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.top-link-button-icon span {
  display: block;
  line-height: 1;
  transform: translateY(1px);
}

.add-book-button {
  border-color: #7f1d1d;
  background: #991b1b;
  color: #fff5f5;
  font-size: 1.8rem;
  letter-spacing: 0;
  text-transform: none;
}

.top-link-button:hover,
.top-link-button:focus-visible,
.add-book-button:hover,
.add-book-button:focus-visible {
  background: var(--surface-3);
  border-color: var(--border-strong);
  outline: none;
}

.add-book-button:hover,
.add-book-button:focus-visible {
  background: #b91c1c;
  border-color: #991b1b;
}

.search-field,
.sort-field {
  display: grid;
  gap: 0;
  align-content: stretch;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  height: var(--top-box-height);
}

.search-field {
  align-content: stretch;
}

.stats-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  align-items: stretch;
}

.stats-mini-card {
  display: grid;
  align-content: center;
  gap: 8px;
  height: var(--top-box-height);
  padding: 12px;
  border: 1px solid var(--border);
  background: var(--surface-2);
}

.stats-mini-label,
.stats-mini-value {
  margin: 0;
}

.stats-mini-label {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stats-mini-value {
  color: var(--text);
  font-size: 1.7rem;
  font-weight: 800;
  line-height: 1;
}

.search-field input,
.sort-field select {
  width: 100%;
  height: 100%;
  border: 1px solid var(--border);
  background: #0d0e10;
  color: var(--text);
  font: inherit;
  text-transform: none;
  padding: 12px 13px;
  outline: none;
}

.search-field input::placeholder {
  color: var(--muted-2);
}

.search-field input:focus,
.sort-field select:focus {
  border-color: var(--border-strong);
  box-shadow: inset 0 0 0 1px var(--border-strong);
}

.library-section {
  margin-top: 12px;
  padding: 16px;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  margin-bottom: 14px;
}

.section-heading-main {
  display: grid;
  gap: 2px;
}

.recommendation-heading-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.results-label,
.results-text {
  margin: 0;
  font-size: 0.86rem;
  font-weight: 700;
}

.results-label {
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.results-text {
  color: var(--text);
  font-size: 0.86rem;
  font-weight: 700;
}

.library-layout {
  display: block;
}

.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
}

.book-card {
  display: grid;
  gap: 10px;
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition:
    border-color 140ms ease,
    background 140ms ease,
    transform 140ms ease;
}

.book-card:hover {
  background: var(--surface-3);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.book-card:focus-visible,
.book-card.is-active {
  border-color: #52525b;
  outline: none;
}

.cover-shell {
  position: relative;
  aspect-ratio: 0.68 / 1;
  overflow: hidden;
  background: #0d0e10;
  border: 1px solid #1c1d21;
}

.cover-placeholder,
.book-cover {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.cover-placeholder {
  display: grid;
  place-items: center;
  padding: 14px;
  text-align: center;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent),
    #111214;
}

.cover-initials {
  font-size: 1.4rem;
  font-weight: 800;
  color: #d4d4d8;
  letter-spacing: -0.04em;
}

.book-cover {
  object-fit: cover;
}

.book-meta {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.book-title,
.book-author,
.book-rating,
.book-date {
  margin: 0;
}

.book-title {
  font-size: 0.92rem;
  font-weight: 800;
  line-height: 1.28;
}

.book-author {
  font-size: 0.82rem;
  line-height: 1.4;
}

.book-footer {
  display: grid;
  gap: 4px;
  margin-top: 8px;
}

.book-rating {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.book-date {
  font-size: 0.74rem;
}

.detail-panel {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: minmax(0, 1fr) min(33.333vw, 520px);
}

.add-panel {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: grid;
  grid-template-columns: minmax(0, 1fr) min(38vw, 580px);
}

.add-panel-backdrop {
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(4px);
}

.add-content {
  position: relative;
  display: grid;
  gap: 18px;
  align-content: start;
  grid-auto-rows: max-content;
  height: 100vh;
  overflow-y: auto;
  padding: 20px 18px 24px;
  border-left: 1px solid var(--border);
  background: #0f1012;
  box-shadow: var(--shadow);
}

.add-close {
  position: absolute;
  top: 20px;
  right: 18px;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}

.add-close:hover,
.add-close:focus-visible {
  background: var(--surface-3);
  border-color: var(--border-strong);
  outline: none;
}

.add-head {
  display: grid;
  gap: 6px;
  margin-top: 38px;
}

.add-form {
  display: grid;
  gap: 12px;
}

.form-grid {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 12px;
}

.form-field {
  display: grid;
  gap: 6px;
}

.form-field span {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  border: 1px solid var(--border);
  background: #0d0e10;
  color: var(--text);
  font: inherit;
  padding: 12px 13px;
  outline: none;
  resize: vertical;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--border-strong);
  box-shadow: inset 0 0 0 1px var(--border-strong);
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 4px;
}

.form-primary,
.form-secondary {
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  font-size: 0.84rem;
  font-weight: 700;
  padding: 11px 14px;
  cursor: pointer;
}

.form-primary {
  background: var(--text);
  color: #0f1012;
  border-color: var(--text);
}

.form-secondary:hover,
.form-secondary:focus-visible,
.form-primary:hover,
.form-primary:focus-visible {
  border-color: var(--border-strong);
  outline: none;
}

.detail-panel-backdrop {
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(4px);
}

.detail-content {
  position: relative;
  display: grid;
  gap: 14px;
  align-content: start;
  grid-auto-rows: max-content;
  height: 100vh;
  overflow-y: auto;
  padding: 20px 18px 24px;
  border-left: 1px solid var(--border);
  background: #0f1012;
  box-shadow: var(--shadow);
}

.detail-top {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 14px;
  align-items: stretch;
  margin-top: -40px;
  padding-top: 48px;
}

.detail-close {
  position: absolute;
  top: 20px;
  right: 18px;
  justify-self: end;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  z-index: 2;
}

.detail-close:hover,
.detail-close:focus-visible {
  background: var(--surface-3);
  border-color: var(--border-strong);
  outline: none;
}

.detail-cover-shell {
  position: relative;
  width: 100%;
  aspect-ratio: 0.68 / 1;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #111214;
}

.detail-cover-edit {
  position: absolute;
  right: 10px;
  bottom: 10px;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--border);
  background: rgba(17, 18, 20, 0.92);
  color: var(--text);
  font: inherit;
  font-size: 0.95rem;
  line-height: 1;
  cursor: pointer;
  z-index: 2;
  opacity: 0;
  pointer-events: none;
  transition: opacity 140ms ease;
}

.detail-cover-shell:hover .detail-cover-edit,
.detail-cover-shell:focus-within .detail-cover-edit {
  opacity: 1;
  pointer-events: auto;
}

.detail-cover-edit:hover,
.detail-cover-edit:focus-visible {
  background: var(--surface-3);
  border-color: var(--border-strong);
  outline: none;
}

.detail-cover-placeholder,
.detail-cover-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.detail-cover-placeholder {
  display: grid;
  place-items: center;
  padding: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent),
    #111214;
}

.detail-cover-initials {
  font-size: 2.4rem;
  font-weight: 800;
  color: #d4d4d8;
  letter-spacing: -0.04em;
}

.detail-cover-image {
  object-fit: cover;
}

.detail-head {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
  padding-top: 2px;
  height: 100%;
  padding-right: 54px;
}

.detail-title,
.detail-author,
.detail-rating,
.detail-date,
.detail-summary,
.detail-section-label {
  margin: 0;
}

.detail-title {
  font-size: 1.8rem;
  line-height: 1.02;
  white-space: normal;
  overflow-wrap: normal;
  word-break: normal;
  hyphens: none;
  max-width: 100%;
}

.detail-author {
  font-size: 0.95rem;
}

.detail-rating {
  color: var(--text);
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  margin-top: 8px;
}

.detail-date {
  font-size: 0.84rem;
}

.detail-facts {
  display: grid;
  gap: 0;
  margin: 0;
  border-top: 1px solid var(--border);
}

.detail-fact {
  display: grid;
  gap: 4px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

.detail-fact dt {
  color: var(--muted);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.detail-fact dd {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.45;
}

.detail-summary-block {
  display: grid;
  gap: 10px;
}

.detail-section-label {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.detail-summary {
  color: #d1d5db;
  font-size: 0.82rem;
  line-height: 1.6;
}

.detail-nav {
  display: flex;
  gap: 8px;
  margin-top: auto;
  padding-top: 12px;
}

.detail-nav-button {
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 700;
  width: 32px;
  height: 32px;
  padding: 0;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.detail-nav-button:hover,
.detail-nav-button:focus-visible {
  background: var(--surface-3);
  border-color: var(--border-strong);
  outline: none;
}

.detail-nav-button:disabled {
  opacity: 0.38;
  cursor: default;
}

.empty-state {
  padding: 28px;
  border: 1px dashed var(--border);
  color: var(--muted);
  text-align: center;
  background: var(--surface-2);
}

.insights-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.95fr);
  gap: 12px;
  margin-bottom: 12px;
}

.insights-hero-copy,
.insight-card,
.recommendation-card {
  border: 1px solid var(--border);
  background: var(--surface);
}

.insights-hero-copy {
  display: grid;
  align-content: start;
  gap: 12px;
  min-height: 240px;
  padding: 20px;
}

.insights-hero-copy h2 {
  font-size: 2.1rem;
  line-height: 0.98;
  max-width: 14ch;
}

.insights-summary {
  margin: 0;
  max-width: 64ch;
  color: #d1d5db;
  font-size: 0.98rem;
  line-height: 1.7;
}

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

.insight-mini-card {
  display: grid;
  align-content: start;
  min-height: 114px;
  padding: 16px;
  border: 1px solid var(--border);
  background: var(--surface);
  gap: 14px;
}

.insight-mini-label,
.insight-mini-value {
  margin: 0;
}

.insight-mini-label {
  color: #b91c1c;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.insight-mini-value {
  font-size: 1.55rem;
  font-weight: 800;
  line-height: 1.05;
}

.insights-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.9fr) minmax(0, 0.9fr);
  gap: 12px;
  margin-bottom: 12px;
}

.insights-grid-authors {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.insight-card {
  display: grid;
  align-content: start;
  gap: 14px;
  padding: 18px;
}

.insight-card .detail-section-label,
.insights-hero-copy .results-label,
.insights-reco-section .results-label {
  color: #b91c1c;
}

.insight-rich-text {
  display: grid;
  gap: 12px;
}

.insight-rich-text p,
.recommendation-text,
.recommendation-meta {
  margin: 0;
}

.insight-rich-text p {
  color: #d1d5db;
  font-size: 0.9rem;
  line-height: 1.72;
}

.insights-reco-section {
  margin-top: 0;
}

.insights-chart-section {
  margin-top: 0;
  margin-bottom: 12px;
}

.insight-ranking {
  display: grid;
  gap: 10px;
}

.insight-ranking-row {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.insight-ranking-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.insight-ranking-rank,
.insight-ranking-name,
.insight-ranking-meta,
.year-chart-year,
.year-chart-value {
  margin: 0;
}

.insight-ranking-rank {
  color: #b91c1c;
  font-size: 0.82rem;
  font-weight: 800;
  line-height: 1.4;
}

.insight-ranking-copy {
  display: grid;
  gap: 2px;
}

.insight-ranking-name {
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.4;
}

.insight-ranking-meta {
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.45;
}

.year-chart {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(56px, 1fr);
  align-items: end;
  gap: 12px;
  min-height: 260px;
  overflow-x: auto;
  padding-bottom: 6px;
}

.year-chart-year,
.year-chart-value {
  font-size: 0.8rem;
  font-weight: 700;
}

.year-chart-year {
  color: var(--muted);
  text-align: center;
}

.year-chart-value {
  text-align: center;
}

.year-chart-bar {
  display: grid;
  grid-template-rows: 22px 180px 20px;
  gap: 10px;
  align-items: end;
}

.year-chart-column {
  position: relative;
  height: 180px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  overflow: hidden;
}

.year-chart-fill {
  position: absolute;
  inset: auto 0 0 0;
  min-width: 8px;
  background: linear-gradient(90deg, #7f1d1d, #b91c1c);
}

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

.recommendation-status {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.5;
}

.recommendation-status[data-tone="success"] {
  color: #d1d5db;
}

.recommendation-status[data-tone="warning"] {
  color: #fca5a5;
}

.recommendation-badge {
  display: inline-flex;
  align-items: center;
  min-height: 20px;
  padding: 2px 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--muted);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.recommendation-badge[data-tone="success"] {
  color: #f3f4f6;
  border-color: #7f1d1d;
}

.recommendation-badge[data-tone="warning"] {
  color: #fca5a5;
}

.recommendation-card {
  display: grid;
  gap: 18px;
  padding: 18px;
}

.recommendation-visuals {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  align-items: start;
}

.recommendation-book {
  display: grid;
  gap: 10px;
  align-content: start;
  justify-items: start;
}

.recommendation-book-recommended .recommendation-cover-shell {
  border-color: #7f1d1d;
}

.recommendation-cover-shell {
  width: min(100%, 160px);
}

.recommendation-book-copy {
  display: grid;
  gap: 4px;
  align-content: start;
  max-width: 160px;
}

.recommendation-book-kicker,
.recommendation-book-title,
.recommendation-book-author {
  margin: 0;
}

.recommendation-book-kicker {
  color: #b91c1c;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.recommendation-book-title {
  font-size: 0.84rem;
  font-weight: 800;
  line-height: 1.35;
}

.recommendation-book-author {
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.45;
}

.recommendation-add-button {
  justify-self: start;
  margin-top: 6px;
  padding: 8px 12px;
  color: #fff5f5;
  border-color: #7f1d1d;
  background: #991b1b;
  box-shadow: none;
}

.recommendation-add-button:hover,
.recommendation-add-button:focus-visible {
  color: #fff5f5;
  border-color: #991b1b;
  background: #b91c1c;
  outline: none;
}

.card-action-button.recommendation-add-button {
  color: #fff5f5;
  border-color: #7f1d1d;
  background: #991b1b;
}

.card-action-button.recommendation-add-button:hover,
.card-action-button.recommendation-add-button:focus-visible {
  color: #fff5f5;
  border-color: #991b1b;
  background: #b91c1c;
}

.recommendation-add-button:disabled {
  opacity: 0.48;
  cursor: default;
}

.recommendation-feedback {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.recommendation-feedback-button {
  width: 34px;
  height: 34px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.recommendation-feedback-button:hover,
.recommendation-feedback-button:focus-visible {
  border-color: var(--border-strong);
  background: var(--surface-3);
  outline: none;
}

.recommendation-feedback-button.is-active {
  border-color: #7f1d1d;
  background: #991b1b;
}

.recommendation-copy {
  display: grid;
  gap: 8px;
  align-content: start;
}

.recommendation-notes {
  display: grid;
  gap: 12px;
}

.recommendation-note-block {
  display: grid;
  gap: 6px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.recommendation-note-label,
.recommendation-note-text {
  margin: 0;
}

.recommendation-note-label {
  color: #b91c1c;
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.recommendation-note-text {
  color: #d1d5db;
  font-size: 0.82rem;
  line-height: 1.6;
}

.recommendation-text {
  font-size: 0.98rem;
  line-height: 1.55;
}

.recommendation-meta {
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

.recommendation-refresh-button {
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 10px 12px;
  cursor: pointer;
}

.recommendation-refresh-button:hover,
.recommendation-refresh-button:focus-visible {
  border-color: var(--border-strong);
  background: var(--surface-3);
  outline: none;
}

.recommendation-refresh-button:disabled {
  opacity: 0.6;
  cursor: wait;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.page-header-copy {
  display: grid;
  gap: 4px;
}

.page-header-eyebrow,
.readlater-date,
.readlater-meta {
  color: var(--muted);
}

.page-header-eyebrow {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.page-header-copy h1 {
  margin: 0;
  font-size: 1.7rem;
  line-height: 1;
  letter-spacing: -0.05em;
}

.page-header-actions {
  display: flex;
  gap: 10px;
}

.page-button {
  min-width: 110px;
  height: 44px;
  padding: 0 14px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  display: inline-grid;
  place-items: center;
  text-decoration: none;
  cursor: pointer;
}

.page-button:hover,
.page-button:focus-visible {
  background: var(--surface-3);
  border-color: var(--border-strong);
  outline: none;
}

.page-button.is-accent {
  border-color: #7f1d1d;
  background: #991b1b;
  color: #fff5f5;
}

.page-button.is-accent:hover,
.page-button.is-accent:focus-visible {
  background: #b91c1c;
  border-color: #991b1b;
}

.readlater-card {
  display: grid;
  gap: 12px;
  padding: 10px;
  border: 1px solid var(--border);
  background: var(--surface-2);
}

.readlater-card .cover-shell {
  width: 100%;
}

.readlater-copy {
  display: grid;
  gap: 5px;
  min-width: 0;
}

.readlater-title,
.readlater-author,
.readlater-meta,
.readlater-date,
.readlater-notes {
  margin: 0;
}

.readlater-title {
  font-size: 0.92rem;
  font-weight: 800;
  line-height: 1.28;
}

.readlater-author {
  font-size: 0.82rem;
  color: var(--muted);
}

.readlater-meta,
.readlater-date {
  font-size: 0.74rem;
}

.readlater-notes {
  margin-top: 6px;
  color: #d1d5db;
  font-size: 0.78rem;
  line-height: 1.55;
}

.readlater-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 8px;
  margin-top: 2px;
}

.card-action-button {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 10px;
  cursor: pointer;
}

.card-action-button:hover,
.card-action-button:focus-visible {
  color: var(--text);
  border-color: var(--border-strong);
  background: var(--surface-3);
  outline: none;
}

.card-action-button-read {
  color: #fff5f5;
  border-color: #7f1d1d;
  background: #991b1b;
}

.card-action-button-read:hover,
.card-action-button-read:focus-visible {
  color: #fff5f5;
  border-color: #991b1b;
  background: #b91c1c;
}

.card-action-button-icon {
  width: 34px;
  height: 34px;
  padding: 0;
  display: grid;
  place-items: center;
  font-size: 1rem;
  line-height: 1;
}

@media (max-width: 900px) {
  .page-shell {
    width: min(100% - 16px, 1320px);
    padding-top: 10px;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 12px, 1320px);
  }

  .library-section {
    padding: 12px;
  }

  .controls {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 8px;
  }

  .controls-main {
    grid-template-columns: 1fr;
  }

  .top-link-button,
  .add-book-button {
    width: 100%;
  }

  .section-heading {
    align-items: start;
  }

  .books-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .insights-hero,
  .insights-grid,
  .insights-grid-authors {
    grid-template-columns: 1fr;
  }

  .recommendation-list,
  .recommendation-visuals {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .controls {
    position: static;
    top: auto;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    align-items: stretch;
  }

  .controls-main,
  .stats-strip {
    grid-column: 1 / -1;
  }

  .controls-main {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .stats-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .controls.is-hidden-mobile {
    transform: none;
    opacity: 1;
  }

  .top-link-button,
  .add-book-button {
    width: 100%;
  }

  .top-link-button-save {
    display: none;
  }

  .books-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .book-card {
    gap: 8px;
    padding: 8px;
  }

  .book-title {
    font-size: 0.84rem;
    line-height: 1.22;
  }

  .book-author {
    font-size: 0.76rem;
  }

  .book-rating {
    font-size: 0.72rem;
  }

  .book-date {
    font-size: 0.68rem;
  }

  .detail-panel {
    grid-template-columns: 1fr;
  }

  .add-panel {
    grid-template-columns: 1fr;
  }

  .detail-panel-backdrop {
    display: none;
  }

  .add-panel-backdrop {
    display: none;
  }

  .detail-content {
    width: 100%;
    border-left: 0;
  }

  .add-content {
    width: 100%;
    border-left: 0;
  }

  .detail-top {
    grid-template-columns: 1fr;
    margin-top: 0;
    padding-top: 0;
  }

  .page-header {
    align-items: start;
    flex-direction: column;
  }

  .page-header-actions {
    width: 100%;
  }

  .page-button {
    flex: 1;
  }

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