/* ============================================================
   FINBOOKS — Home Page Styles
   Hero, stats, category filters, books grid, spotlight,
   top picks table, data panel.
   ============================================================ */

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  position: relative;
  padding: var(--space-10) var(--space-6) var(--space-8);
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 900px;
  background: radial-gradient(circle, rgba(201,168,76,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(42,46,63,0.15) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42,46,63,0.15) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--accent-gold-bg);
  border: 1px solid var(--accent-gold-border);
  border-radius: 100px;
  padding: var(--space-1) var(--space-3);
  font-size: 0.625rem;
  font-weight: 600;
  color: var(--accent-gold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-gold);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.4); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: var(--space-3);
}

.hero-title em {
  font-style: normal;
  color: var(--accent-gold);
}

.hero-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto var(--space-6);
  line-height: 1.6;
}

/* Stats Row */
.stats-row {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 0.6875rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-top: 0;
}

.stat-divider {
  width: 1px;
  background: var(--border-default);
  align-self: stretch;
}

/* ============================================================
   CATEGORY FILTERS
   ============================================================ */
.section-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.category-section {
  padding: var(--space-8) 0 var(--space-4);
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.section-eyebrow {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: var(--space-2);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.category-filters {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.cat-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: 100px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out-quart);
  white-space: nowrap;
  user-select: none;
}

.cat-chip:hover {
  color: var(--text-primary);
  border-color: var(--border-default);
}

.cat-chip.active {
  color: var(--text-primary);
  background: var(--bg-elevated);
  border-color: var(--border-active);
}

.cat-chip-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.cat-chip-count {
  font-size: 0.6875rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.cat-chip.active .cat-chip-count { color: var(--text-secondary); }

/* ============================================================
   BOOKS BENTO GRID
   ============================================================ */
.books-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-4);
  padding-bottom: var(--space-16);
}

/* Card sizes */
.book-card { grid-column: span 4; }
.book-card.featured { grid-column: span 6; }

.book-card-inner {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: all var(--duration-normal) var(--ease-out-quart);
  overflow: hidden;
}

.book-card-inner:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-default);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.book-card-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-5);
  margin-bottom: var(--space-5);
}

/* Book cover — SVG abstraction */
.book-cover {
  width: 80px;
  height: 112px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.book-cover svg {
  width: 100%;
  height: 100%;
}

.book-meta {
  flex: 1;
  min-width: 0;
}

.book-category-tag {
  display: inline-block;
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 2px var(--space-2);
  border-radius: 4px;
  margin-bottom: var(--space-2);
}

.book-title {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: var(--space-1);
  color: var(--text-primary);
}

.book-author {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}

.book-summary {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: var(--space-4);
  flex: 1;
}

.book-reason {
  position: relative;
  padding: var(--space-4);
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--accent-gold);
  font-size: 0.8125rem;
}

.book-reason-label {
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: var(--space-1);
}

.book-reason-text {
  color: var(--text-secondary);
  line-height: 1.6;
  font-style: italic;
}

.book-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-subtle);
}

.book-metric {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.6875rem;
  color: var(--text-muted);
}

.book-metric-value {
  color: var(--text-secondary);
  font-weight: 500;
}

/* ============================================================
   FEATURED / SPOTLIGHT SECTION
   ============================================================ */
.spotlight-section {
  padding: var(--space-12) 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.spotlight-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.spotlight-visual {
  position: relative;
}

.spotlight-books-stack {
  position: relative;
  height: 360px;
}

.stack-book {
  position: absolute;
  width: 180px;
  height: 240px;
  border-radius: var(--radius-md);
  transition: transform var(--duration-slow) var(--ease-out-expo);
}

.stack-book:nth-child(1) {
  left: 50%;
  top: 0;
  transform: translateX(-50%) rotate(-6deg);
  z-index: 3;
}

.stack-book:nth-child(2) {
  left: 30%;
  top: 30px;
  transform: translateX(-50%) rotate(4deg);
  z-index: 2;
  opacity: 0.8;
}

.stack-book:nth-child(3) {
  left: 70%;
  top: 30px;
  transform: translateX(-50%) rotate(2deg);
  z-index: 1;
  opacity: 0.6;
}

.stack-book:hover {
  transform: translateX(-50%) rotate(0deg) scale(1.05);
  z-index: 10;
}

.spotlight-content .section-eyebrow { margin-bottom: var(--space-3); }
.spotlight-content .section-title { margin-bottom: var(--space-4); }

.spotlight-desc {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

.spotlight-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.spotlight-bullets li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.spotlight-bullets li::before {
  content: '';
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent-gold-bg);
  border: 1px solid var(--accent-gold-border);
  flex-shrink: 0;
  margin-top: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.625rem;
  color: var(--accent-gold);
  font-weight: 700;
}

/* ============================================================
   TOP PICKS TABLE
   ============================================================ */
.table-section {
  padding: var(--space-16) 0;
}

.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
}

.books-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.books-table thead th {
  text-align: left;
  padding: var(--space-4) var(--space-6);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface);
}

.books-table tbody td {
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
}

.books-table tbody tr {
  transition: background var(--duration-fast) var(--ease-out-quart);
}

.books-table tbody tr:hover {
  background: var(--bg-card-hover);
}

.books-table tbody tr:last-child td {
  border-bottom: none;
}

.table-rank {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-muted);
  width: 48px;
}

.table-rank.top { color: var(--accent-gold); }

.table-book-info {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.table-book-cover {
  width: 36px;
  height: 48px;
  border-radius: 4px;
  flex-shrink: 0;
}

.table-book-title {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.table-book-author {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.table-rating {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--accent-gold);
}

.table-tag {
  display: inline-block;
  padding: 2px var(--space-2);
  border-radius: 4px;
  font-size: 0.6875rem;
  font-weight: 500;
}

/* ============================================================
   DATA PANEL — Bottom Stats
   ============================================================ */
.data-panel {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  padding: var(--space-16) 0;
}

.data-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--duration-normal) var(--ease-out-quart);
}

.data-card:hover {
  border-color: var(--border-default);
  box-shadow: var(--shadow-card);
}

.data-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}

.data-card-value {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-1);
}

.data-card-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}

.data-card-change {
  font-size: 0.75rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.data-card-change.up { color: var(--color-up); }
.data-card-change.down { color: var(--color-down); }

/* ============================================================
   RESPONSIVE — Home
   ============================================================ */
@media (max-width: 1200px) {
  .books-grid { grid-template-columns: repeat(8, 1fr); }
  .book-card { grid-column: span 4; }
  .book-card.featured { grid-column: span 8; }
  .data-panel { grid-template-columns: repeat(2, 1fr); }
  .spotlight-grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .spotlight-books-stack { height: 280px; }
}

@media (max-width: 768px) {
  .books-grid {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
  .book-card,
  .book-card.featured { grid-column: span 1; }
  .hero { padding: var(--space-12) var(--space-4) var(--space-10); }
  .stats-row { gap: var(--space-6); }
  .stat-divider { display: none; }
  .category-filters { gap: var(--space-1); }
  .cat-chip { padding: var(--space-1) var(--space-3); font-size: 0.75rem; }
  .section-header { flex-direction: column; align-items: flex-start; }
}