/* 
 * Perspectivas PUCV Styles
 * Premium, institutional design
 */

:root {
    --pucv-primary: #003366;
    --pucv-gold: #C4A43C;
    --pucv-dark: #1a1a2e;
    --pucv-light: #f8f9fa;
    --pucv-white: #ffffff;
    --pucv-gray-100: #f1f3f5;
    --pucv-gray-200: #e9ecef;
    --pucv-gray-400: #ced4da;
    --pucv-gray-600: #6c757d;
    --pucv-gray-800: #343a40;
    
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.12);
    
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

.perspectivas-pucv {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--pucv-dark);
    line-height: 1.6;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
    box-sizing: border-box;
}

.perspectivas-pucv *, .perspectivas-pucv *::before, .perspectivas-pucv *::after {
    box-sizing: inherit;
}

/* Typography */
.perspectivas-pucv h1, 
.perspectivas-pucv h2, 
.perspectivas-pucv h3, 
.perspectivas-pucv h4 {
    color: var(--pucv-primary);
    margin-top: 0;
    line-height: 1.3;
}

/* Buttons */
.perspectivas-pucv .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    font-size: 1rem;
}

.perspectivas-pucv .btn-primary {
    background-color: var(--pucv-primary);
    color: var(--pucv-white);
}

.perspectivas-pucv .btn-primary:hover {
    background-color: #002244;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.perspectivas-pucv .btn-secondary {
    background-color: var(--pucv-light);
    color: var(--pucv-primary);
    border: 1px solid var(--pucv-gray-400);
}

.perspectivas-pucv .btn-secondary:hover {
    background-color: var(--pucv-gray-100);
}

/* Listado View */
.perspectivas-pucv .listado-header {
    text-align: center;
    margin-bottom: 3rem;
}

.perspectivas-pucv .listado-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.perspectivas-pucv .listado-subtitle {
    font-size: 1.25rem;
    color: var(--pucv-gold);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.perspectivas-pucv .listado-description {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
    color: var(--pucv-gray-600);
}

/* Filter Bar */
.perspectivas-pucv .listado-filters {
    background: var(--pucv-light);
    padding: 1.5rem;
    border-radius: var(--border-radius-md);
    margin-bottom: 3rem;
    box-shadow: var(--shadow-sm);
}

.perspectivas-pucv .filter-form {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    align-items: flex-end;
}

.perspectivas-pucv .filter-group {
    flex: 1;
    min-width: 200px;
}

.perspectivas-pucv .filter-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
}

.perspectivas-pucv .filter-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--pucv-gray-400);
    border-radius: var(--border-radius-sm);
    background-color: var(--pucv-white);
    font-size: 1rem;
    font-family: inherit;
}

/* Month Groups */
.perspectivas-pucv .month-group {
    margin-bottom: 4rem;
}

.perspectivas-pucv .month-heading {
    position: relative;
    font-size: 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--pucv-gray-200);
    display: flex;
    align-items: center;
}

.perspectivas-pucv .month-heading::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background-color: var(--pucv-gold);
}

/* Cards Grid */
.perspectivas-pucv .perspectivas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.perspectivas-pucv .perspectiva-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.perspectivas-pucv .perspectiva-card {
    background: var(--pucv-white);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    height: 100%;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--pucv-gray-200);
}

.perspectivas-pucv .perspectiva-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.perspectivas-pucv .card-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.perspectivas-pucv .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.perspectivas-pucv .perspectiva-card:hover .card-image img {
    transform: scale(1.05);
}

.perspectivas-pucv .card-image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--pucv-primary), #3b5998);
}

.perspectivas-pucv .card-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--pucv-gold);
    color: var(--pucv-dark);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-sm);
}

.perspectivas-pucv .card-content {
    padding: 1.5rem;
    flex: 1;
}

.perspectivas-pucv .card-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.perspectivas-pucv .card-summary {
    color: var(--pucv-gray-600);
    font-size: 0.95rem;
    margin: 0;
}

.perspectivas-pucv .card-footer {
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--pucv-gray-100);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #fdfdfd;
}

.perspectivas-pucv .card-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.perspectivas-pucv .author-photo-small {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.perspectivas-pucv .author-photo-placeholder {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--pucv-gray-400);
}

.perspectivas-pucv .author-info-small {
    display: flex;
    flex-direction: column;
}

.perspectivas-pucv .author-name {
    font-size: 0.9rem;
    font-weight: 600;
}

.perspectivas-pucv .author-role {
    font-size: 0.8rem;
    color: var(--pucv-gray-600);
}

.perspectivas-pucv .card-date {
    font-size: 0.8rem;
    color: var(--pucv-gray-600);
    font-weight: 500;
}

.perspectivas-pucv .btn-floating {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    background-color: var(--pucv-gold);
    color: var(--pucv-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    z-index: 100;
    transition: transform var(--transition-fast);
}

.perspectivas-pucv .btn-floating:hover {
    transform: scale(1.1);
}

/* Single View */
.perspectivas-pucv .single-breadcrumb {
    font-size: 0.9rem;
    margin-bottom: 2rem;
    color: var(--pucv-gray-600);
}

.perspectivas-pucv .single-breadcrumb a {
    color: var(--pucv-primary);
    text-decoration: none;
}

.perspectivas-pucv .single-breadcrumb a:hover {
    text-decoration: underline;
}

.perspectivas-pucv .separator {
    margin: 0 0.5rem;
}

.perspectivas-pucv .current-title {
    color: var(--pucv-gray-800);
    font-weight: 600;
}

.perspectivas-pucv .hero-section {
    position: relative;
    padding: 6rem 3rem;
    border-radius: var(--border-radius-lg);
    background-color: var(--pucv-primary);
    background-size: cover;
    background-position: center;
    color: var(--pucv-white);
    margin-bottom: 4rem;
    overflow: hidden;
}

.perspectivas-pucv .hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(0,51,102,0.9), rgba(0,51,102,0.6));
}

.perspectivas-pucv .hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.perspectivas-pucv .hero-badge {
    display: inline-block;
    background: var(--pucv-gold);
    color: var(--pucv-dark);
    padding: 0.35rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}

.perspectivas-pucv .hero-title {
    color: var(--pucv-white);
    font-size: 3rem;
    margin-bottom: 1rem;
}

.perspectivas-pucv .hero-bajada {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 1.5rem;
}

.perspectivas-pucv .hero-date {
    font-size: 0.9rem;
    opacity: 0.8;
}

.perspectivas-pucv .single-layout {
    display: flex;
    gap: 4rem;
    align-items: flex-start;
}

.perspectivas-pucv .single-sidebar {
    width: 30%;
    flex-shrink: 0;
}

.perspectivas-pucv .single-main-content {
    width: 70%;
}

.perspectivas-pucv .author-card-sticky {
    position: sticky;
    top: 2rem;
    background: var(--pucv-light);
    border-radius: var(--border-radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    text-align: center;
}

.perspectivas-pucv .author-photo-large {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1.5rem;
    border: 4px solid var(--pucv-white);
    box-shadow: var(--shadow-sm);
}

.perspectivas-pucv .author-name-large {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.perspectivas-pucv .author-grado,
.perspectivas-pucv .author-cargo,
.perspectivas-pucv .author-unidad,
.perspectivas-pucv .author-vinculacion {
    margin: 0 0 0.25rem;
    font-size: 0.95rem;
    color: var(--pucv-gray-800);
}

.perspectivas-pucv .author-vinculacion {
    color: var(--pucv-gray-600);
    margin-bottom: 1.5rem;
}

.perspectivas-pucv .author-resena {
    font-size: 0.9rem;
    color: var(--pucv-gray-600);
    border-top: 1px solid var(--pucv-gray-200);
    padding-top: 1.5rem;
    margin-top: 1.5rem;
    text-align: left;
}

.perspectivas-pucv .share-buttons {
    margin-top: 2rem;
    border-top: 1px solid var(--pucv-gray-200);
    padding-top: 1.5rem;
}

.perspectivas-pucv .share-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.perspectivas-pucv .share-btn {
    display: block;
    padding: 0.75rem;
    border-radius: var(--border-radius-sm);
    text-decoration: none;
    color: var(--pucv-white);
    font-weight: 600;
    transition: opacity var(--transition-fast);
}

.perspectivas-pucv .share-btn:hover {
    opacity: 0.9;
}

.perspectivas-pucv .share-btn.linkedin { background: #0077b5; }
.perspectivas-pucv .share-btn.twitter { background: #000000; }
.perspectivas-pucv .share-btn.email { background: var(--pucv-primary); }

.perspectivas-pucv .content-section {
    margin-bottom: 4rem;
}

.perspectivas-pucv .section-heading {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--pucv-gray-200);
}

.perspectivas-pucv .heading-icon {
    display: inline-block;
    width: 8px;
    height: 24px;
    background: var(--pucv-gold);
    border-radius: 4px;
}

.perspectivas-pucv .section-body {
    font-size: 1.1rem;
    color: var(--pucv-gray-800);
}

.perspectivas-pucv .bibliography {
    font-size: 0.95rem;
    color: var(--pucv-gray-600);
    padding-left: 2rem;
    text-indent: -2rem; /* Hanging indent for APA */
}

.perspectivas-pucv .single-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--pucv-gray-200);
}

.perspectivas-pucv .nav-prev,
.perspectivas-pucv .nav-next {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    max-width: 30%;
    color: inherit;
}

.perspectivas-pucv .nav-next {
    text-align: right;
}

.perspectivas-pucv .nav-label {
    font-size: 0.85rem;
    color: var(--pucv-gray-600);
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.perspectivas-pucv .nav-title {
    font-weight: 600;
    color: var(--pucv-primary);
    transition: color var(--transition-fast);
}

.perspectivas-pucv .nav-prev:hover .nav-title,
.perspectivas-pucv .nav-next:hover .nav-title {
    color: var(--pucv-gold);
}

/* Form View */
.perspectivas-pucv .form-header {
    margin-bottom: 3rem;
}

.perspectivas-pucv .form-title {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.perspectivas-pucv .form-instructions {
    font-size: 1.1rem;
    color: var(--pucv-gray-600);
}

.perspectivas-pucv .form-section {
    background: var(--pucv-white);
    border: 1px solid var(--pucv-gray-200);
    border-radius: var(--border-radius-md);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.perspectivas-pucv .section-summary {
    padding: 1.25rem 1.5rem;
    background: var(--pucv-light);
    font-size: 1.25rem;
    font-weight: 600;
    cursor: pointer;
    list-style: none; /* Hide default arrow */
    position: relative;
    border-bottom: 1px solid transparent;
}

.perspectivas-pucv .section-summary::-webkit-details-marker {
    display: none;
}

.perspectivas-pucv .section-summary::after {
    content: '+';
    position: absolute;
    right: 1.5rem;
    font-size: 1.5rem;
    color: var(--pucv-primary);
    transition: transform var(--transition-fast);
}

.perspectivas-pucv .form-section[open] .section-summary {
    border-bottom-color: var(--pucv-gray-200);
}

.perspectivas-pucv .form-section[open] .section-summary::after {
    transform: rotate(45deg);
}

.perspectivas-pucv .section-content {
    padding: 2rem;
}

.perspectivas-pucv .form-row {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.perspectivas-pucv .form-row .form-group {
    flex: 1;
    margin-bottom: 0;
}

.perspectivas-pucv .form-group {
    margin-bottom: 1.5rem;
}

.perspectivas-pucv .form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.perspectivas-pucv .required {
    color: #dc3545;
}

.perspectivas-pucv input[type="text"],
.perspectivas-pucv select,
.perspectivas-pucv textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--pucv-gray-400);
    border-radius: var(--border-radius-sm);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.perspectivas-pucv input:focus,
.perspectivas-pucv select:focus,
.perspectivas-pucv textarea:focus {
    outline: none;
    border-color: var(--pucv-primary);
    box-shadow: 0 0 0 3px rgba(0,51,102,0.1);
}

.perspectivas-pucv .word-counter {
    text-align: right;
    font-size: 0.85rem;
    margin-top: 0.5rem;
    font-weight: 600;
}

.perspectivas-pucv .count.text-success { color: #28a745; }
.perspectivas-pucv .count.text-warning { color: #ffc107; }
.perspectivas-pucv .count.text-danger { color: #dc3545; }

.perspectivas-pucv .upload-area {
    border: 2px dashed var(--pucv-gray-400);
    border-radius: var(--border-radius-md);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    background: var(--pucv-light);
    transition: all var(--transition-fast);
    position: relative;
}

.perspectivas-pucv .upload-area:hover {
    border-color: var(--pucv-primary);
    background: rgba(0,51,102,0.02);
}

.perspectivas-pucv .hidden-input {
    display: none;
}

.perspectivas-pucv .upload-preview {
    max-width: 100%;
    max-height: 200px;
    margin-top: 1rem;
    border-radius: var(--border-radius-sm);
}

.perspectivas-pucv .form-actions {
    margin-top: 2rem;
    text-align: right;
}

.perspectivas-pucv .spinner {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
    margin-left: 0.5rem;
}

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

.perspectivas-pucv .form-messages {
    padding: 1rem;
    border-radius: var(--border-radius-sm);
    margin-bottom: 2rem;
    font-weight: 600;
}
.perspectivas-pucv .form-messages.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}
.perspectivas-pucv .form-messages.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Responsive */
@media (max-width: 1200px) {
    .perspectivas-pucv .single-layout {
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .perspectivas-pucv .perspectivas-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
    
    .perspectivas-pucv .single-layout {
        flex-direction: column-reverse;
    }
    
    .perspectivas-pucv .single-sidebar,
    .perspectivas-pucv .single-main-content {
        width: 100%;
    }
    
    .perspectivas-pucv .author-card-sticky {
        position: static;
        margin-bottom: 3rem;
    }
    
    .perspectivas-pucv .hero-section {
        padding: 4rem 1.5rem;
    }
    
    .perspectivas-pucv .hero-title {
        font-size: 2rem;
    }
    
    .perspectivas-pucv .form-row {
        flex-direction: column;
        gap: 0;
    }
}

@media (max-width: 480px) {
    .perspectivas-pucv .perspectivas-grid {
        grid-template-columns: 1fr;
    }
    
    .perspectivas-pucv .filter-form {
        flex-direction: column;
        align-items: stretch;
    }
    
    .perspectivas-pucv .single-navigation {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
    
    .perspectivas-pucv .nav-prev,
    .perspectivas-pucv .nav-next {
        max-width: 100%;
        text-align: center;
    }
}

/* Print */
@media print {
    .perspectivas-pucv .listado-filters,
    .perspectivas-pucv .single-navigation,
    .perspectivas-pucv .share-buttons,
    .perspectivas-pucv .btn-floating {
        display: none !important;
    }
    
    .perspectivas-pucv .hero-section {
        background: none !important;
        color: #000 !important;
        padding: 0;
        margin-bottom: 2rem;
    }
    
    .perspectivas-pucv .hero-title,
    .perspectivas-pucv .hero-bajada,
    .perspectivas-pucv .hero-date {
        color: #000 !important;
    }
    
    .perspectivas-pucv .single-sidebar {
        width: 100%;
        margin-bottom: 2rem;
    }
    
    .perspectivas-pucv .author-card-sticky {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}