/* Estilos personalizados para el Catálogo de Libros - Tema Verde Claro tipo Starbucks */

/* Estilos generales */
:root {
  --primary-color: #6f9a7c; /* Verde claro tipo Starbucks */
  --primary-dark: #5a7d64; /* Verde más oscuro */
  --primary-light: #d6e4da; /* Verde muy claro */
  --secondary-color: #8a9a7c;
  --accent-color: #c1a86f; /* Tono cálido tipo Starbucks para contraste */
  --text-dark: #333333;
  --text-light: #6c757d;
  --background-light: #f8f9fa;
  --background-white: #ffffff;
  --border-radius: 0.75rem;
  --box-shadow: 0 0.25rem 0.5rem rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
  --header-gradient: linear-gradient(135deg, #6f9a7c, #5a7d64);
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--background-light);
  background: linear-gradient(135deg, #f0f4f0, #e6ede6);
  margin: 0;
  padding: 0;
  min-height: 100vh;
}

/* Header */
header {
  background: var(--header-gradient);
  color: white;
  padding: 1.5rem 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}

header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect width="100" height="100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></svg>');
  opacity: 0.1;
}

header h1 {
  font-weight: 700;
  letter-spacing: 0.5px;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* Search Section */
.search-section {
  margin: 0 auto 3rem;
  max-width: 800px;
  position: relative;
  z-index: 10;
}

.card {
  border: none;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  background: var(--background-white);
  overflow: hidden;
}

.card:hover {
  box-shadow: 0 0.75rem 1.5rem rgba(111, 154, 124, 0.3);
  transform: translateY(-3px);
}

.form-control-lg {
  padding: 1rem 1.25rem;
  font-size: 1.1rem;
  border: 2px solid var(--primary-light);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.form-control-lg:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.25rem rgba(111, 154, 124, 0.25);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.1rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: var(--transition);
}

/* Green-themed buttons */
.btn-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(111, 154, 124, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Search history suggestions */
.search-history-list {
  max-height: 300px;
  overflow-y: auto;
  z-index: 1000;
}

.search-history-item {
  cursor: pointer;
  transition: var(--transition);
}

.search-history-item:hover {
  background-color: var(--primary-light);
}

/* Results Grid */
.results-section {
  min-height: 400px;
  padding: 0 1rem;
  max-width: 1400px;
  margin: 0 auto;
}

.book-card {
  height: 100%;
  border: 1px solid var(--primary-light);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: var(--transition);
  margin-bottom: 2rem;
  background: var(--background-white);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  position: relative;
  display: flex;
  flex-direction: column;
}

.book-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 0.75rem 1.5rem rgba(111, 154, 124, 0.25);
  border-color: var(--primary-color);
}

.book-cover {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-bottom: 1px solid var(--primary-light);
  transition: var(--transition);
}

.book-cover:hover {
  transform: scale(1.02);
}

.book-cover.no-image {
  background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
}

.book-info {
  padding: 1.25rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.book-title {
  font-weight: 700;
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
  color: var(--text-dark);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
}

.book-author {
  color: var(--text-light);
  font-size: 1rem;
  margin-bottom: 0.75rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-style: italic;
}

.book-year {
  color: var(--text-light);
  font-size: 0.9rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.view-details-btn {
  width: 100%;
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
  font-weight: 600;
  padding: 0.75rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
  margin-top: auto;
}

.view-details-btn:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: scale(1.02);
  box-shadow: 0 4px 12px rgba(111, 154, 124, 0.4);
}

.view-details-btn:active {
  transform: scale(1);
}

/* Modal styles */
.modal-content {
  border: none;
  border-radius: var(--border-radius);
  box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.15);
}

.modal-header {
  background: var(--header-gradient);
  color: white;
  border-bottom: none;
  border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.modal-title {
  font-weight: 700;
  font-size: 1.5rem;
}

.modal-body {
  max-height: 70vh;
  overflow-y: auto;
  padding: 1.5rem;
}

.book-detail-cover {
  width: 100%;
  max-width: 250px;
  height: auto;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  margin: 0 auto 1.5rem;
  display: block;
  border: 1px solid var(--primary-light);
}

.book-detail-title {
  font-weight: 800;
  color: var(--text-dark);
  border-bottom: 2px solid var(--primary-color);
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
  font-size: 1.8rem;
}

.book-detail-authors {
  color: var(--text-light);
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  font-style: italic;
  font-weight: 500;
}

.book-detail-description {
  line-height: 1.8;
  color: var(--text-dark);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.detail-item {
  margin-bottom: 1rem;
  padding: 0.75rem;
  background: var(--background-light);
  border-radius: calc(var(--border-radius) * 0.5);
  border-left: 4px solid var(--primary-color);
}

.detail-label {
  font-weight: 700;
  color: var(--text-dark);
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.95rem;
}

.detail-value {
  color: var(--text-light);
  font-size: 1rem;
}

/* Loader */
.spinner-border {
  width: 3rem;
  height: 3rem;
  color: var(--primary-color);
}

/* Status messages */
.status-message {
  border-radius: var(--border-radius);
  background: var(--background-white);
  border-left: 4px solid var(--primary-color);
  box-shadow: var(--box-shadow);
}

/* No results container */
#noResults {
  background: var(--background-white);
  padding: 3rem 2rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  border: 1px dashed var(--primary-light);
}

/* Footer */
footer {
  background: var(--header-gradient);
  color: white;
  margin-top: 4rem;
  padding: 2rem 0 1rem;
}

footer p {
  margin: 0;
  opacity: 0.9;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .book-cover {
    height: 200px;
  }
  
  .book-title {
    font-size: 1.1rem;
  }
  
  .book-author {
    font-size: 0.95rem;
  }
  
  .modal-dialog {
    margin: 1rem;
  }
  
  .book-detail-cover {
    max-width: 200px;
  }
  
  .book-detail-title {
    font-size: 1.5rem;
  }
  
  header {
    padding: 1rem 0;
  }
  
  .search-section {
    margin: 0 1rem 2rem;
  }
  
  .results-section {
    padding: 0 0.5rem;
  }
}

@media (max-width: 576px) {
  .book-cover {
    height: 180px;
  }
  
  .book-info {
    padding: 1rem;
  }
  
  .btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
  }
  
  header .container {
    padding: 0.75rem 1rem;
  }
  
  h1 {
    font-size: 1.4rem;
  }
  
  .form-control-lg {
    padding: 0.75rem 1rem;
    font-size: 1rem;
  }
  
  .book-card {
    margin-bottom: 1.5rem;
  }
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.book-card {
  animation: fadeIn 0.4s ease-out;
}

/* Utility classes */
.text-truncate-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.d-grid {
  display: grid;
}

.grid-cols-1 {
  grid-template-columns: repeat(1, minmax(0, 1fr));
}

.grid-cols-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-cols-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

@media (min-width: 768px) {
  .grid-cols-md-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 992px) {
  .grid-cols-lg-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1200px) {
  .grid-cols-xl-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--primary-light);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}

/* Input group styling */
.input-group {
  box-shadow: 0 0.125rem 0.25rem rgba(111, 154, 124, 0.2);
  border-radius: var(--border-radius);
  overflow: hidden;
}

/* Accent color for special elements */
.text-accent {
  color: var(--accent-color);
}

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

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

/* Subtle background patterns */
.pattern-bg {
  background-image: radial-gradient(var(--primary-color) 1px, transparent 1px);
  background-size: 20px 20px;
}