/* Estilos personalizados para Biblioteca TECBA */

/* Variables de color - Esquema Naranja y Negro */
:root {
    --primary-color: rgb(255, 113, 0);      /* Naranja exacto RGB(255, 113, 0) */
    --secondary-color: #FF8C42;   /* Naranja secundario */
    --accent-color: #FFA726;      /* Naranja más claro */
    --dark-color: #212529;          /* Negro principal */
    --light-color: #F8F9FA;         /* Blanco casi puro */
    --text-color: #343A40;          /* Gris oscuro para texto */
    --border-color: #DEE2E6;         /* Gris claro para bordes */
}

/* Estilos generales */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* Navbar */
.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

/* Hero Section */
.hero-section {
    position: relative;
    overflow: hidden;
}

.hero-image-container {
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.hero-image {
    max-width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: cover;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-image:hover {
    transform: scale(1.05);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-image {
        max-height: 250px;
    }
    
    .hero-image-container {
        animation: none;
    }
}

/* Cards de libros */
.card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
    border: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.15);
}

.card-img-top {
    height: 280px;
    object-fit: cover;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    line-height: 1.3;
    height: 2.6em;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.card-text {
    font-size: 0.9rem;
    color: #666;
}

/* Badges */
.badge {
    font-size: 0.75rem;
}

/* Botones */
.btn {
    border-radius: 6px;
    font-weight: 500;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0056b3, #004085);
    transform: translateY(-1px);
}

/* Paginación */
.pagination .page-link {
    border-radius: 6px;
    margin: 0 2px;
    border: none;
    color: var(--primary-color);
}

.pagination .page-item.active .page-link {
    background: var(--primary-color);
    border: none;
}

/* Búsqueda */
.search-form {
    max-width: 500px;
    margin: 0 auto;
}

/* Features Section con fondo animado */
.features-section {
    position: relative;
    background-image: url('../images/wallpaperbetter2.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    background-repeat: no-repeat;
    min-height: 350px;
    overflow: hidden;
    margin-bottom: 0;
    padding-bottom: 0;
}

.features-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.95) 0%, 
        rgba(255, 255, 255, 0.85) 50%, 
        rgba(248, 249, 250, 0.9) 100%);
    animation: backgroundPulse 8s ease-in-out infinite;
    z-index: 1;
    border: none;
}

.features-section .container {
    position: relative;
    z-index: 2;
    padding-bottom: 1rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 2rem;
    margin: 1rem 0;
    border: none;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.4s ease;
    animation: fadeInUp 1s ease-out;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(255, 113, 0, 0.2);
    background: rgba(255, 255, 255, 0.95);
}

@keyframes backgroundPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .features-section {
        background-attachment: scroll;
        min-height: auto;
    }
    
    .feature-card {
        margin: 0.5rem 0;
        padding: 1.5rem;
    }
    
    .features-section::before {
        background: linear-gradient(135deg, 
            rgba(255, 255, 255, 0.98) 0%, 
            rgba(255, 255, 255, 0.92) 50%, 
            rgba(248, 249, 250, 0.95) 100%);
    }
}

/* CTA Section con fondo */
.cta-section {
    position: relative;
    background-image: url('../images/wallpaperbetter2.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    background-repeat: no-repeat;
    min-height: 350px;
    overflow: hidden;
    margin-top: -1px;
    padding-top: 4rem;
    z-index: 3;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.95) 0%, 
        rgba(255, 255, 255, 0.85) 50%, 
        rgba(248, 249, 250, 0.9) 100%);
    animation: backgroundPulse 8s ease-in-out infinite;
    z-index: 1;
    border: none;
    margin-top: 0;
}

.cta-section .container {
    position: relative;
    z-index: 2;
}

.cta-section h3,
.cta-section p,
.cta-section .btn {
    color: white !important;
    text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.8), 
                 1px 1px 2px rgba(0, 0, 0, 0.9);
    font-weight: 600;
}

.cta-section .btn {
    background: white !important;
    color: rgb(255, 113, 0) !important;
    border: 2px solid rgba(255, 255, 255, 0.8) !important;
    font-weight: 700;
    padding: 12px 30px;
    border-radius: 50px;
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.cta-section .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.4);
    background: rgba(255, 255, 255, 0.95) !important;
    border: 2px solid rgba(255, 255, 255, 1) !important;
}

@keyframes backgroundPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .cta-section {
        background-attachment: scroll;
        min-height: auto;
    }
    
    .cta-section .btn {
        padding: 10px 25px;
        font-size: 1rem;
    }
}

/* Categorías */
.category-card {
    transition: all 0.3s ease;
    border: 2px solid transparent;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
}

.category-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.1);
}

.category-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Vista de detalle de libro */
.book-cover {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.book-info h1 {
    color: var(--dark-color);
    font-weight: 700;
    margin-bottom: 1rem;
}

.book-meta {
    background: var(--light-color);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.book-meta .badge {
    margin-right: 0.5rem;
}

/* Footer */
footer {
    margin-top: auto;
}

footer a {
    transition: color 0.3s ease;
}

footer a:hover {
    color: var(--primary-color) !important;
}

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

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

/* Responsive */
@media (max-width: 768px) {
    .card-img-top {
        height: 200px;
        font-size: 2rem;
    }
    
    .book-info h1 {
        font-size: 1.5rem;
    }
    
    .navbar-brand {
        font-size: 1.2rem;
    }
}

/* Loading spinner */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

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

/* Alertas personalizadas */
.alert {
    border: none;
    border-radius: 8px;
    font-weight: 500;
}

/* Tablas */
.table {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.table th {
    background: var(--primary-color);
    color: white;
    border: none;
    font-weight: 600;
}

/* Formularios */
.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}