/* ==================== ADMIN STYLES ==================== */

/* Login Page */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--dark) 0%, var(--secondary) 100%);
    padding: 20px;
}

.login-container {
    background: var(--white);
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-logo {
    font-size: 4rem;
    margin-bottom: 10px;
}

.login-header h1 {
    font-family: 'Oswald', sans-serif;
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 5px;
}

.login-header p {
    color: var(--gray);
}

.login-form .form-group {
    margin-bottom: 20px;
}

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

.login-form input {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--light);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary);
}

.error-message {
    background: #fee;
    color: #c00;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.btn-block {
    width: 100%;
    padding: 14px;
    font-size: 1rem;
}

.login-help {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--light);
    text-align: center;
}

.login-help p {
    color: var(--gray);
    font-size: 0.85rem;
    margin-bottom: 10px;
}

.login-help code {
    display: block;
    background: var(--light);
    padding: 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    margin-bottom: 5px;
    color: var(--secondary);
}

/* Admin Layout */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.admin-sidebar {
    background: var(--dark);
    color: var(--white);
    padding: 20px 0;
    position: fixed;
    left: 0;
    top: 0;
    width: 260px;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
}

/* Main content - debe tener margen para el sidebar fijo */
.admin-main {
    flex: 1;
    margin-left: 260px;
    min-height: 100vh;
    background: #f5f5f5;
}

.sidebar-header {
    padding: 0 20px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--white);
    font-family: 'Oswald', sans-serif;
    font-size: 1.5rem;
}

.sidebar-logo .logo-icon {
    font-size: 2rem;
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-user .user-avatar {
    width: 45px;
    height: 45px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.sidebar-user .user-info {
    display: flex;
    flex-direction: column;
}

.sidebar-user .user-name {
    font-weight: 600;
}

.sidebar-user .user-role {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.6);
}

.sidebar-nav {
    padding: 20px 0;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: rgba(255,255,255,0.8);
    transition: var(--transition);
}

.sidebar-nav a:hover {
    background: rgba(255,255,255,0.1);
    color: var(--white);
}

.sidebar-nav a.active {
    background: var(--primary);
    color: var(--white);
}

.sidebar-nav hr {
    border: none;
    border-top: 1px solid rgba(255,255,255,0.1);
    margin: 15px 20px;
}

/* Admin Header */
.admin-header {
    background: var(--white);
    padding: 20px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 50;
}

.admin-header h1 {
    font-family: 'Oswald', sans-serif;
    font-size: 1.8rem;
    color: var(--dark);
    margin: 0;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.current-date {
    color: var(--gray);
    font-size: 0.9rem;
}

.admin-content {
    padding: 30px;
}

/* Welcome Banner */
.welcome-banner {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #ffffff;
    padding: 30px 35px;
    border-radius: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    min-height: 100px;
}

.welcome-text {
    flex: 1;
}

.welcome-text h2 {
    font-family: 'Oswald', sans-serif;
    font-size: 1.8rem;
    margin: 0 0 8px 0;
    color: #ffffff;
}

.welcome-text p {
    margin: 0;
    opacity: 0.9;
    color: #ffffff;
}

.welcome-banner .btn {
    background: #ffffff;
    color: var(--primary);
    white-space: nowrap;
    margin-left: 20px;
    padding: 12px 24px;
    border-radius: 25px;
    font-weight: 600;
    text-decoration: none;
}

.welcome-banner .btn:hover {
    background: #f0f0f0;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--white);
    padding: 25px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 15px;
    box-shadow: var(--shadow);
}

.stat-icon {
    font-size: 2.5rem;
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: 'Oswald', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark);
}

.stat-label {
    color: var(--gray);
    font-size: 0.9rem;
}

/* Admin Section */
.admin-section {
    background: var(--white);
    padding: 25px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.admin-section h3 {
    font-family: 'Oswald', sans-serif;
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--dark);
}

/* Content Header */
.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.content-header h2 {
    font-family: 'Oswald', sans-serif;
    font-size: 1.5rem;
    color: var(--dark);
}

/* Articles Table */
.articles-table {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.articles-table table {
    width: 100%;
    border-collapse: collapse;
}

.articles-table th,
.articles-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--light);
}

.articles-table th {
    background: var(--light);
    font-weight: 600;
    color: var(--secondary);
    font-size: 0.9rem;
}

.articles-table td {
    font-size: 0.95rem;
}

.articles-table tr:hover {
    background: rgba(0,0,0,0.02);
}

.articles-table a {
    color: var(--dark);
    transition: var(--transition);
}

.articles-table a:hover {
    color: var(--primary);
}

.table-thumb {
    width: 60px;
    height: 40px;
    object-fit: cover;
    border-radius: 4px;
}

.badge {
    background: var(--light);
    color: var(--secondary);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
}

.btn-small {
    padding: 6px 12px;
    font-size: 0.8rem;
    border-radius: 4px;
    background: var(--light);
    color: var(--dark);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
}

.btn-small:hover {
    background: var(--secondary);
    color: var(--white);
}

.btn-danger {
    background: #fee;
    color: #c00;
}

.btn-danger:hover {
    background: #c00;
    color: var(--white);
}

/* Empty State Small */
.empty-state-small {
    text-align: center;
    padding: 40px;
    color: var(--gray);
}

.empty-state-small p {
    margin-bottom: 15px;
}

/* Article Form */
.article-form .form-grid {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 30px;
}

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

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

.form-main input,
.form-main textarea,
.form-main select {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--light);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-main input:focus,
.form-main textarea:focus,
.form-main select:focus {
    outline: none;
    border-color: var(--primary);
}

.form-main small {
    color: var(--gray);
    font-size: 0.85rem;
    margin-top: 5px;
    display: block;
}

.form-sidebar .form-card {
    background: var(--white);
    padding: 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.form-card h4 {
    font-family: 'Oswald', sans-serif;
    margin-bottom: 15px;
    color: var(--dark);
}

.form-card .form-group {
    margin-bottom: 15px;
}

.form-card label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark);
    font-size: 0.95rem;
}

.form-card input[type="checkbox"] {
    width: auto;
    margin-right: 8px;
}

.form-card input,
.form-card select {
    width: 100%;
    padding: 10px 12px;
    border: 2px solid var(--light);
    border-radius: 6px;
    font-size: 0.95rem;
}

.form-card input:focus,
.form-card select:focus {
    outline: none;
    border-color: var(--primary);
}

.form-card small {
    color: var(--gray);
    font-size: 0.8rem;
}

.image-preview {
    width: 100%;
    height: 150px;
    background: var(--light);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    overflow: hidden;
}

.image-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.image-preview span {
    color: var(--gray);
}

.form-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

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

.btn-secondary:hover {
    background: var(--gray);
    color: var(--white);
}

/* Responsive Admin */
@media (max-width: 1200px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .article-form .form-grid {
        grid-template-columns: 1fr;
    }
    
    .form-sidebar {
        order: -1;
    }
}

@media (max-width: 992px) {
    .admin-layout {
        display: block;
    }
    
    .admin-sidebar {
        position: relative;
        width: 100%;
        height: auto;
        padding-bottom: 20px;
    }
    
    .sidebar-nav {
        display: flex;
        flex-wrap: wrap;
        padding: 10px;
        gap: 5px;
    }
    
    .sidebar-nav a {
        padding: 10px 15px;
    }
    
    .sidebar-nav hr {
        display: none;
    }
    
    .admin-main {
        margin-left: 0;
    }
    
    .sidebar-user {
        display: none;
    }
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .admin-content {
        padding: 20px;
    }
    
    .articles-table {
        overflow-x: auto;
    }
    
    .articles-table table {
        min-width: 600px;
    }
    
    .admin-header {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .admin-header h1 {
        font-size: 1.5rem;
    }
}

/* ==================== BIBLIOTECA DE MEDIOS ==================== */

.upload-zone {
    background: var(--white);
    border: 3px dashed #ddd;
    border-radius: var(--radius);
    padding: 40px;
    text-align: center;
    margin-bottom: 30px;
    transition: var(--transition);
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--primary);
    background: #fff5f5;
}

.upload-content {
    display: block;
    cursor: pointer;
}

#file-input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    overflow: hidden;
}

.upload-icon {
    font-size: 4rem;
    margin-bottom: 15px;
}

.upload-zone p {
    margin: 0 0 5px 0;
    color: var(--dark);
}

.upload-zone small {
    color: var(--gray);
}

.upload-progress {
    padding: 20px;
}

.progress-bar {
    background: var(--light);
    border-radius: 10px;
    height: 20px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-fill {
    background: var(--primary);
    height: 100%;
    width: 0;
    transition: width 0.3s ease;
}

.media-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 15px;
}

.media-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    box-shadow: var(--shadow);
}

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

.media-item:hover img {
    transform: scale(1.05);
}

.media-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.media-item:hover .media-overlay {
    opacity: 1;
}

.btn-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: white;
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.btn-icon:hover {
    transform: scale(1.1);
}

.btn-icon.btn-danger:hover {
    background: #c00;
}

.empty-media {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--gray);
}

.empty-media p:first-child {
    font-size: 1.2rem;
    margin-bottom: 5px;
}

/* Responsive medios */
@media (max-width: 768px) {
    .upload-zone {
        padding: 30px 20px;
    }
    
    .upload-icon {
        font-size: 3rem;
    }
    
    .media-gallery {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: 10px;
    }
}