/* ==========================================================================
   Loable Books - Component Styles
   ========================================================================== */

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--color-bg), 0 0 0 4px var(--color-primary);
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background-color: var(--color-primary-light);
  border-color: var(--color-primary-light);
  color: white;
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: var(--color-text);
  border-color: var(--color-secondary);
}

.btn-secondary:hover {
  background-color: var(--color-secondary-light);
  border-color: var(--color-secondary-light);
  color: var(--color-text);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: white;
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-text);
  border-color: transparent;
}

.btn-ghost:hover {
  background-color: var(--color-bg-alt);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-lg);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
}

.btn-icon {
  padding: var(--space-3);
}

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-body {
  padding: var(--space-5);
}

.card-title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-2);
}

.card-text {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}

/* --------------------------------------------------------------------------
   Book Card
   -------------------------------------------------------------------------- */
.book-card {
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.book-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.book-card__cover {
  position: relative;
  aspect-ratio: 2 / 3;
  overflow: hidden;
  background-color: var(--color-bg-dark);
}

.book-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.book-card:hover .book-card__cover img {
  transform: scale(1.05);
}

.book-card__content {
  padding: var(--space-4);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.book-card__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-1);
  color: var(--color-text);
  line-height: var(--line-height-tight);
}

.book-card__author {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.book-card__description {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: var(--line-height-base);
  margin-bottom: var(--space-4);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.book-card__link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-primary);
}

.book-card__link:hover {
  color: var(--color-primary-light);
}

/* --------------------------------------------------------------------------
   Author Card
   -------------------------------------------------------------------------- */
.author-card {
  text-align: center;
  padding: var(--space-6);
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.author-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.author-card__photo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto var(--space-4);
  border: 3px solid var(--color-border-light);
}

.author-card__name {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
}

.author-card__books {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Article Card
   -------------------------------------------------------------------------- */
.article-card {
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.article-card__image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: var(--color-bg-dark);
}

.article-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-card__content {
  padding: var(--space-5);
}

.article-card__category {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.article-card__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
  line-height: var(--line-height-tight);
}

.article-card__excerpt {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-bottom: var(--space-3);
}

.article-card__meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Genre/Category Tag
   -------------------------------------------------------------------------- */
.tag {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: 500;
  background-color: var(--color-bg-alt);
  color: var(--color-text-light);
  border-radius: var(--radius);
  transition: background-color var(--transition-fast);
}

.tag:hover {
  background-color: var(--color-bg-dark);
  color: var(--color-text);
}

.tag-primary {
  background-color: var(--color-primary);
  color: white;
}

.tag-primary:hover {
  background-color: var(--color-primary-light);
  color: white;
}

/* --------------------------------------------------------------------------
   Badge
   -------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-2);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-sm);
}

.badge-new {
  background-color: var(--color-accent);
  color: white;
}

.badge-bestseller {
  background-color: var(--color-secondary);
  color: var(--color-text);
}

/* --------------------------------------------------------------------------
   Form Elements
   -------------------------------------------------------------------------- */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(46, 26, 107, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B6B6B' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  padding-right: var(--space-10);
}

/* --------------------------------------------------------------------------
   Search Input
   -------------------------------------------------------------------------- */
.search-input {
  position: relative;
}

.search-input__icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}

.search-input input {
  padding-left: var(--space-12);
}

/* --------------------------------------------------------------------------
   Modal
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-overlay);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.modal-overlay.is-active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.95);
  transition: transform var(--transition-base);
}

.modal-overlay.is-active .modal {
  transform: scale(1);
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5);
  border-bottom: 1px solid var(--color-border);
}

.modal__title {
  font-size: var(--font-size-xl);
  margin: 0;
}

.modal__close {
  background: none;
  border: none;
  padding: var(--space-2);
  cursor: pointer;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.modal__close:hover {
  color: var(--color-text);
}

.modal__body {
  padding: var(--space-5);
}

.modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-5);
  border-top: 1px solid var(--color-border);
}

/* --------------------------------------------------------------------------
   Breadcrumb
   -------------------------------------------------------------------------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

.breadcrumb__separator {
  color: var(--color-border);
}

.breadcrumb__link {
  color: var(--color-text-muted);
}

.breadcrumb__link:hover {
  color: var(--color-primary);
}

.breadcrumb__current {
  color: var(--color-text);
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   Pagination
   -------------------------------------------------------------------------- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-8);
}

.pagination__link {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: all var(--transition-fast);
}

.pagination__link:hover {
  background-color: var(--color-bg-alt);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.pagination__link.is-active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.pagination__link.is-disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   Purchase Buttons
   -------------------------------------------------------------------------- */
.purchase-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.purchase-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-weight: 500;
  border-radius: var(--radius);
  transition: all var(--transition-base);
}

.purchase-btn--amazon {
  background-color: #FF9900;
  color: #111;
}

.purchase-btn--amazon:hover {
  background-color: #FFB84D;
  color: #111;
}

.purchase-btn--apple {
  background-color: #000;
  color: #fff;
}

.purchase-btn--apple:hover {
  background-color: #333;
  color: #fff;
}

/* --------------------------------------------------------------------------
   Rating Stars
   -------------------------------------------------------------------------- */
.rating {
  display: inline-flex;
  gap: var(--space-1);
  color: var(--color-secondary);
}

.rating__star {
  width: 16px;
  height: 16px;
}

.rating__star--empty {
  color: var(--color-border);
}

/* --------------------------------------------------------------------------
   Loading Spinner
   -------------------------------------------------------------------------- */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* --------------------------------------------------------------------------
   Divider
   -------------------------------------------------------------------------- */
.divider {
  height: 1px;
  background-color: var(--color-border);
  margin: var(--space-8) 0;
}