/* Components CSS - Reusable Components for Book Shelf Explorer */

/* Navigation */
nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 15px;
  flex-wrap: wrap;
}

nav a {
  color: var(--white);
  text-decoration: none;
  padding: 12px 20px;
  border-radius: 25px;
  font-weight: 600;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

nav a::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  transition: left 0.5s;
}

nav a:hover::before {
  left: 100%;
}

nav a:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

/* Breadcrumb Navigation */
.breadcrumb {
  background: var(--white);
  padding: 15px 0;
  border-bottom: 1px solid var(--accent-color);
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.breadcrumb-item {
  display: flex;
  align-items: center;
}

.breadcrumb-item:not(:last-child)::after {
  content: '›';
  margin: 0 10px;
  color: var(--text-light);
  font-size: 1.2rem;
}

.breadcrumb-link {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

.breadcrumb-link:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

.breadcrumb-current {
  color: var(--text-light);
  font-weight: 600;
}

/* Cards */
.card {
  background: var(--white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-medium);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-heavy);
}

.card-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.card:hover .card-image {
  transform: scale(1.1);
}

.card-content {
  padding: 20px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: 1.3rem;
  font-weight: bold;
  color: var(--text-dark);
  margin-bottom: 10px;
  line-height: 1.3;
}

.card-description {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.5;
  flex-grow: 1;
  margin-bottom: 15px;
}

.card-footer {
  margin-top: auto;
  padding-top: 15px;
}

.card-link {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: var(--white);
  text-decoration: none;
  padding: 10px 20px;
  border-radius: 25px;
  font-weight: 600;
  display: inline-block;
  transition: var(--transition);
  text-align: center;
}

.card-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(155, 112, 69, 0.4);
}

/* Category Cards */
.category-card {
  background: var(--white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-medium);
  transition: var(--transition);
  position: relative;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(155, 112, 69, 0.8), rgba(127, 91, 55, 0.9));
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 1;
}

.category-card:hover::before {
  opacity: 1;
}

.category-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-heavy);
}

.category-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.category-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  color: var(--white);
  transform: translateY(50%);
  transition: var(--transition);
  z-index: 2;
}

.category-card:hover .category-content {
  transform: translateY(0);
}

.category-title {
  font-size: 1.4rem;
  font-weight: bold;
  margin-bottom: 5px;
  color: var(--white);
}

.category-count {
  font-size: 0.9rem;
  opacity: 0.9;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border: none;
  border-radius: 25px;
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1rem;
  line-height: 1;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: var(--white);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(155, 112, 69, 0.4);
}

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

.btn-secondary:hover {
  background: var(--accent-color);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

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

/* Forms */
.form-container {
  background: var(--white);
  padding: 40px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
  max-width: 500px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 25px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--text-dark);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--accent-color);
  border-radius: 8px;
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(155, 112, 69, 0.1);
}

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

/* Search */
.search-container {
  background: var(--white);
  padding: 20px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
  display: flex;
  gap: 10px;
  align-items: center;
}

.search-input {
  flex: 1;
  padding: 12px 16px;
  border: 2px solid var(--accent-color);
  border-radius: 25px;
  font-size: 1rem;
  transition: var(--transition);
}

.search-input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(155, 112, 69, 0.1);
}

.search-button {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: var(--white);
  border: none;
  padding: 12px 20px;
  border-radius: 25px;
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
}

.search-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(155, 112, 69, 0.4);
}

/* Footer */
footer {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: var(--white);
  padding: 40px 0 20px;
  margin-top: auto;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-bottom: 30px;
}

.footer-section h4 {
  color: var(--white);
  margin-bottom: 15px;
  font-size: 1.2rem;
}

.footer-section p,
.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  line-height: 1.6;
}

.footer-section a:hover {
  color: var(--white);
  text-decoration: underline;
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.7);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

.slide-in-left {
  animation: slideInLeft 0.6s ease-out;
}

.slide-in-right {
  animation: slideInRight 0.6s ease-out;
}

/* Staggered animations */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }
.stagger-6 { animation-delay: 0.6s; }

/* === Unified Layout & Shared Book Styles (Consolidated) === */
/* Book grid (replaces repeated inline .book-grid blocks) */
.books-grid, .book-grid { /* keep legacy selector for existing pages */
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  padding: 10px 0 30px;
}

/* Book card (merging .book-item variations) */
.book-card, .book-item {
  background: var(--white);
  padding: 18px;
  border-radius: 12px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.08);
  text-align: center;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: transform .25s ease, box-shadow .25s ease;
}
.book-card:hover, .book-item:hover { transform: translateY(-4px); box-shadow: 0 8px 18px rgba(0,0,0,0.15); }

.book-card img, .book-item img {
  width: 140px;
  height: 190px;
  object-fit: cover;
  border-radius: 8px;
  margin: 0 auto 14px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.12);
}

.book-card h3, .book-item h3 { margin: 8px 0 6px; font-size: 1.05rem; color: var(--text-dark); line-height: 1.3; }
.book-card p, .book-item p { color: var(--text-light); font-size: 0.85rem; line-height: 1.4; flex-grow: 1; }

/* Standard action button unify (covers legacy .btn inside book-item) */
.book-card .btn, .book-item .btn { background: var(--primary-color); color: var(--white); padding: 8px 16px; border-radius: 6px; text-decoration: none; font-size: 0.8rem; font-weight: 600; letter-spacing: .5px; transition: background .25s ease; }
.book-card .btn:hover, .book-item .btn:hover { background: var(--primary-dark); }

/* Category hero section (for top of category pages) */
.category-hero { text-align: center; padding: 50px 15px 25px; }
.category-hero h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: 12px; }
.category-hero p { max-width: 720px; margin: 0 auto 22px; color: var(--text-light); }

/* Auth navigation area */
.nav-auth { display: flex; gap: 14px; align-items: center; }
.user-display { font-weight: 600; color: var(--white); }
.logout-btn { display: none; }

/* Footer quick search unification */
.footer-quick-search { margin-top: 12px; }
.footer-quick-search .search-input { width: 100%; }

/* Utility & accessibility */
.hidden { display: none !important; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--primary-color); outline-offset: 3px; }

@media (max-width: 640px) {
  .books-grid { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
  .book-card img, .book-item img { width: 110px; height: 150px; }
}

/* Contact Form & Info Sections (moved from inline contact.html) */
.contact-container { max-width: 880px; margin: 0 auto; padding: 20px 15px 60px; }
.contact-form { background: var(--white); padding: 34px 30px 40px; border-radius: 16px; box-shadow: var(--shadow-medium); margin-bottom:40px; position:relative; overflow:hidden; }
.contact-form h2 { margin-top:0; font-size:1.5rem; }
.contact-info { background: #f5f2ed; padding: 34px 30px 38px; border-radius: 16px; border-left: 6px solid var(--primary-color); box-shadow: var(--shadow-small); }
.contact-item { margin-bottom:18px; }
.contact-item h4 { margin:0 0 6px; color: var(--primary-color); font-size:1rem; }
.contact-item p { margin:0; color: var(--text-light); line-height:1.5; }
.contact-form .form-group { margin-bottom:20px; }
.contact-form select { width:100%; padding:12px 14px; border:2px solid var(--accent-color); border-radius:8px; font: inherit; }
.submit-btn { background: var(--primary-color); color: var(--white); padding: 14px 28px; border:none; border-radius: 30px; font-weight:600; font-size:1rem; cursor:pointer; box-shadow: 0 4px 12px rgba(155,112,69,.25); transition: var(--transition); }
.submit-btn:hover { background: var(--primary-dark); transform: translateY(-2px); }

/* Auth Panels (from login_register.html) */
.auth-wrapper { max-width: 900px; margin: 50px auto; display: grid; gap: 30px; grid-template-columns: repeat(auto-fit,minmax(380px,1fr)); }
.auth-panel { background: var(--white); padding: 35px 32px 40px; border-radius: 18px; box-shadow: var(--shadow-medium); position: relative; overflow: hidden; }
.auth-panel h2 { margin-top: 0; margin-bottom: 18px; font-size: 1.6rem; }
.auth-panel p.subtitle { margin-top: -6px; margin-bottom: 22px; color: var(--text-light); font-size: .9rem; }
.switch-link { color: var(--primary-color); cursor: pointer; font-weight: 600; }
.switch-link:hover { text-decoration: underline; }
.auth-alert { display:none; margin-bottom: 15px; padding: 10px 14px; border-radius: 8px; font-size: .85rem; }
.auth-alert.error { background:#ffe8e5; color:#b42318; }
.auth-alert.success { background:#e6f9ed; color:#157347; }
.form-inline-split { display: flex; gap: 14px; }
.form-inline-split .form-group { flex:1; }
.remember-row { display:flex; justify-content:space-between; align-items:center; margin-top: -8px; }
.remember-row label { display:flex; gap:6px; align-items:center; font-size:.85rem; }