:root {
  --bg: #f8f9fa;
  --card: #ffffff;
  --text: #212529;
  --muted: #6c757d;
  --border: #dee2e6;
  --primary: #0d6efd;
  --primary-hover: #0b5ed7;
  --success: #198754;
  --success-bg: #d1e7dd;
  --radius: 10px;
  --shadow: 0 2px 8px rgba(0,0,0,0.06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

h1 {
  margin: 0 0 20px;
  font-size: 1.6rem;
  text-align: center;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
  align-items: center;
}

#search {
  flex: 1 1 240px;
  padding: 10px 14px;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
}

#search:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(13,110,253,0.15);
}

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

.filter-btn {
  padding: 8px 14px;
  font-size: 0.9rem;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all .15s ease;
}

.filter-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.filter-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.stats {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 12px;
}

.table-wrapper {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

th, td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  background: #f1f3f5;
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--muted);
}

tr:hover td {
  background: #f8f9fa;
}

.col-count, .col-price, .col-image, .col-status {
  text-align: center;
  white-space: nowrap;
}

.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
}

.badge-success {
  background: var(--success-bg);
  color: var(--success);
}

.btn-icon {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.3rem;
  padding: 4px;
  color: var(--primary);
  transition: transform .1s;
}

.btn-icon:hover {
  transform: scale(1.15);
}

.type-tag {
  display: inline-block;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 6px;
  margin-left: 8px;
  font-weight: 600;
  text-transform: uppercase;
  vertical-align: middle;
}

.type-manga { background: #e0f2fe; color: #0369a1; }
.type-fiction { background: #f3e8ff; color: #7e22ce; }
.type-non-fiction { background: #fef3c7; color: #b45309; }

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal.hidden { display: none; }

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.75);
}

.modal-content {
  position: relative;
  z-index: 101;
  max-width: 92vw;
  max-height: 92vh;
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.modal-content img {
  display: block;
  max-width: 92vw;
  max-height: 92vh;
  width: auto;
  height: auto;
  object-fit: contain;
}

.modal-close {
  position: absolute;
  top: 8px;
  right: 12px;
  background: rgba(0,0,0,0.5);
  color: #fff;
  border: none;
  font-size: 1.8rem;
  line-height: 1;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  background: rgba(0,0,0,0.8);
}

/* Responsive */
@media (max-width: 600px) {
  .container { padding: 16px 12px 32px; }
  h1 { font-size: 1.3rem; }
  th, td { padding: 10px 10px; font-size: 0.9rem; }
  .type-tag { display: none; }
}