/* PPS - Estilos Personalizados */

:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

/* General */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* Navbar */
.navbar {
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

/* Hero Section */
.hero-section {
    background: var(--gradient-primary);
    min-height: 70vh;
    display: flex;
    align-items: center;
}

.hero-image img {
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.hero-image img:hover {
    transform: translateY(-5px);
}

/* Stats Section */
.stats-section {
    background: var(--light-color);
}

.stat-item h3 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

/* Cards */
.card {
    border: none;
    border-radius: 15px;
    transition: all 0.3s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

.publication-card {
    position: relative;
}

.card-img-container {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.card-img-top {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.publication-card:hover .card-overlay {
    opacity: 1;
}

.publication-card:hover .card-img-top {
    transform: scale(1.1);
}

.category-card {
    text-align: center;
    padding: 2rem 1rem;
}

.category-icon {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 50%;
}

/* Buttons */
.btn {
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 1.5rem;
}

.btn-primary {
    background: var(--gradient-primary);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

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

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

/* Forms */
.form-control {
    border-radius: 10px;
    border: 2px solid #e9ecef;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Alerts */
.alert {
    border-radius: 10px;
    border: none;
}

/* Pagination */
.pagination .page-link {
    border-radius: 10px;
    margin: 0 2px;
    border: 2px solid #e9ecef;
    color: var(--primary-color);
}

.pagination .page-item.active .page-link {
    background: var(--gradient-primary);
    border-color: var(--primary-color);
}

/* Footer */
footer {
    background: var(--dark-color) !important;
}

.social-links a {
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.social-links a:hover {
    transform: translateY(-3px);
    color: var(--primary-color) !important;
}

/* Back to Top Button */
#backToTop {
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Loading Spinner */
.spinner {
    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); }
}

/* Animations */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

.slide-up {
    animation: slideUp 0.5s ease-out;
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero-section {
        min-height: 50vh;
        text-align: center;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .stat-item h3 {
        font-size: 2rem;
    }
    
    .card-img-container {
        height: 200px;
    }
}

@media (max-width: 576px) {
    .navbar-brand {
        font-size: 1.2rem;
    }
    
    .hero-section h1 {
        font-size: 1.8rem;
    }
    
    .btn {
        padding: 0.4rem 1rem;
        font-size: 0.9rem;
    }
}

/* Admin Styles */
.admin-sidebar {
    background: var(--dark-color);
    min-height: 100vh;
    padding: 2rem 0;
}

.admin-sidebar .nav-link {
    color: #fff;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
}

.admin-sidebar .nav-link:hover,
.admin-sidebar .nav-link.active {
    background: var(--primary-color);
    color: #fff;
}

.admin-content {
    padding: 2rem;
}

/* Dashboard Cards */
.dashboard-card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.dashboard-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

.dashboard-stat {
    text-align: center;
}

.dashboard-stat h3 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.dashboard-stat p {
    color: #666;
    font-size: 1.1rem;
}

/* Table Styles */
.table {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

.table thead th {
    background: var(--gradient-primary);
    color: white;
    border: none;
    font-weight: 600;
    padding: 1rem;
}

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
    border-top: 1px solid #e9ecef;
}

/* Badge Styles */
.badge {
    border-radius: 20px;
    padding: 0.5rem 1rem;
    font-weight: 500;
}

/* Modal Styles */
.modal-content {
    border-radius: 15px;
    border: none;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.modal-header {
    border-bottom: 1px solid #e9ecef;
    border-radius: 15px 15px 0 0;
}

.modal-footer {
    border-top: 1px solid #e9ecef;
    border-radius: 0 0 15px 15px;
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #0056b3;
}

/* Print Styles */
@media print {
    .navbar,
    .btn,
    footer {
        display: none !important;
    }
    
    .container {
        max-width: none !important;
    }
}