/* ==========================================================================
   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-sm);
  font-weight: 500;
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 0;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  transition: left var(--transition-slow);
}

.btn:hover::after {
  left: 100%;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

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

.btn-primary:hover {
  background: var(--color-accent-light);
  border-color: var(--color-accent-light);
  color: var(--color-on-accent);
  box-shadow: var(--shadow-glow);
}

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

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

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

.btn-ghost:hover {
  color: var(--color-text-bright);
  background: rgba(255, 255, 255, 0.05);
}

.btn-lg {
  padding: var(--space-4) var(--space-10);
  font-size: var(--font-size-sm);
}

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

.btn-icon {
  padding: var(--space-3);
  border: 1px solid var(--color-border);
}

.btn-icon:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Genre Tag
   -------------------------------------------------------------------------- */
.tag {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  font-family: var(--font-body);
  font-size: var(--font-size-xs);
  font-weight: 500;
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.tag:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Badge
   -------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wider);
}

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

.badge-bestseller {
  background: var(--color-accent-dim);
  color: var(--color-text-bright);
}

.badge-upcoming {
  background: rgba(56, 189, 248, 0.15);
  color: #38BDF8;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

/* --------------------------------------------------------------------------
   Book Card
   -------------------------------------------------------------------------- */
.book-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: all var(--transition-dramatic);
}

.book-card:hover {
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-glow);
  transform: translateY(-8px);
}

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

.book-card__cover::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40%;
  background: linear-gradient(transparent, var(--color-bg-card));
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.book-card:hover .book-card__cover::after {
  opacity: 1;
}

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

.book-card:hover .book-card__cover img {
  transform: scale(1.08);
}

.book-card__content {
  padding: var(--space-5);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.book-card__title {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: 500;
  margin-bottom: var(--space-1);
  color: var(--color-text-bright);
  line-height: var(--line-height-snug);
}

.book-card__author {
  font-size: var(--font-size-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  color: var(--color-accent-dim);
  margin-bottom: var(--space-3);
}

.book-card__description {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  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 {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  color: var(--color-accent);
  transition: gap var(--transition-base);
}

.book-card__link:hover {
  color: var(--color-accent-light);
  gap: var(--space-3);
}

/* --------------------------------------------------------------------------
   Generic Card
   -------------------------------------------------------------------------- */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: all var(--transition-base);
  text-decoration: none;
  color: inherit;
}

.card:hover {
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
  color: inherit;
}

.card-body {
  padding: var(--space-6);
}

.card-title {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  color: var(--color-text-bright);
  margin-bottom: var(--space-2);
}

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

/* --------------------------------------------------------------------------
   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 {
  width: 100%;
  padding: var(--space-3) var(--space-4) var(--space-3) var(--space-12);
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0;
  transition: all var(--transition-fast);
}

.search-input input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent);
}

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

.search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-dropdown);
  display: none;
}

.search-results.is-visible {
  display: block;
}

.search-result {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  text-decoration: none;
  color: var(--color-text);
  transition: background var(--transition-fast);
}

.search-result:hover {
  background: var(--color-surface);
  color: var(--color-text-bright);
}

.search-result__type {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  color: var(--color-accent-dim);
  display: block;
}

.search-result__title {
  display: block;
  font-weight: 500;
}

.search-result__meta {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.search-results__empty {
  padding: var(--space-4);
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

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

.breadcrumb__separator {
  color: var(--color-text-muted);
  opacity: 0.4;
}

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

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

.breadcrumb__current {
  color: var(--color-text-secondary);
}

/* --------------------------------------------------------------------------
   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-family: var(--font-body);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition-base);
  border: 1px solid transparent;
}

a.purchase-btn:hover {
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.purchase-btn--amazon { background: #FF9900; color: #111; }
.purchase-btn--amazon:hover { background: #FFB84D; color: #111; }
.purchase-btn--apple { background: #000; color: #fff; border-color: rgba(255,255,255,0.15); }
.purchase-btn--apple:hover { background: #1a1a1a; color: #fff; }
.purchase-btn--kobo { background: #BF0000; color: #fff; }
.purchase-btn--kobo:hover { background: #E60000; color: #fff; }
.purchase-btn--everand { background: #1E7B85; color: #fff; }
.purchase-btn--everand:hover { background: #259BA7; color: #fff; }
.purchase-btn--vivlio { background: #E84E0F; color: #fff; }
.purchase-btn--vivlio:hover { background: #FF6B2C; color: #fff; }
.purchase-btn--smashwords { background: #1A5276; color: #fff; }
.purchase-btn--smashwords:hover { background: #2471A3; color: #fff; }
.purchase-btn--books2read { background: #6C3483; color: #fff; }
.purchase-btn--books2read:hover { background: #8E44AD; color: #fff; }
.purchase-btn--barnesnoble { background: #2E5B2E; color: #fff; }
.purchase-btn--barnesnoble:hover { background: #3D7A3D; color: #fff; }
.purchase-btn--fable { background: #1A73E8; color: #fff; }
.purchase-btn--fable:hover { background: #4285F4; color: #fff; }
.purchase-btn--thalia { background: #00457C; color: #fff; }
.purchase-btn--thalia:hover { background: #005A9E; color: #fff; }
.purchase-btn--wattpad { background: #FF500A; color: #fff; }
.purchase-btn--wattpad:hover { background: #FF7340; color: #fff; }

/* --------------------------------------------------------------------------
   Form Elements
   -------------------------------------------------------------------------- */
.form-input,
.form-textarea {
  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: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0;
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Loading Spinner
   -------------------------------------------------------------------------- */
.spinner {
  width: 40px;
  height: 40px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* --------------------------------------------------------------------------
   Theme Toggle
   -------------------------------------------------------------------------- */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: 1px solid var(--color-border);
  cursor: pointer;
  color: var(--color-text-secondary);
  transition: color var(--transition-base), border-color var(--transition-base);
  position: relative;
  flex-shrink: 0;
}

.theme-toggle:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.theme-toggle__icon {
  position: absolute;
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Dark mode: show moon, hide sun */
.theme-toggle__icon--moon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

.theme-toggle__icon--sun {
  opacity: 0;
  transform: rotate(-90deg) scale(0.5);
}

/* Light mode: show sun, hide moon */
[data-theme="light"] .theme-toggle__icon--sun {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

[data-theme="light"] .theme-toggle__icon--moon {
  opacity: 0;
  transform: rotate(90deg) scale(0.5);
}