/* Archivo: assets/css/admin.css
   Ubicación: chatbot-project/assets/css/admin.css
   Descripción: Estilos para el panel administrativo del chatbot */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #333;
    line-height: 1.6;
}

/* === PÁGINA DE LOGIN === */
.login-page {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 400px;
}

.login-box {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    text-align: center;
}

.login-header i {
    font-size: 3rem;
    color: #007bff;
    margin-bottom: 10px;
}

.login-header h1 {
    color: #333;
    margin-bottom: 5px;
    font-size: 2rem;
}

.login-header p {
    color: #666;
    margin-bottom: 30px;
}

.login-form {
    text-align: left;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #555;
}

.form-group label i {
    margin-right: 8px;
    color: #007bff;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #007bff;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    width: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,123,255,0.3);
}

.btn-success {
    background: linear-gradient(135deg, #28a745, #20c997);
    color: white;
}

.btn-warning {
    background: linear-gradient(135deg, #ffc107, #e0a800);
    color: #333;
}

.btn-danger {
    background: linear-gradient(135deg, #dc3545, #c82333);
    color: white;
}

.btn-secondary {
    background: linear-gradient(135deg, #6c757d, #5a6268);
    color: white;
}

.alert {
    padding: 12px 15px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.login-footer {
    margin-top: 20px;
    color: #666;
}

/* === PANEL ADMINISTRATIVO === */
.admin-layout {
    display: flex;
    min-height: 100vh;
    background: #f8f9fa;
}

.sidebar {
    width: 250px;
    background: white;
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 20px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    text-align: center;
}

.sidebar-header i {
    font-size: 2rem;
    margin-bottom: 10px;
}

.nav-menu {
    list-style: none;
    padding: 0;
}

.nav-item {
    border-bottom: 1px solid #e9ecef;
}

.nav-link {
    display: block;
    padding: 15px 20px;
    color: #333;
    text-decoration: none;
    transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    background: #f8f9fa;
    color: #007bff;
    padding-left: 30px;
}

.nav-link i {
    margin-right: 10px;
    width: 20px;
}

.main-content {
    flex: 1;
    margin-left: 250px;
    padding: 20px;
}

.page-header {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.page-header h1 {
    color: #333;
    margin-bottom: 5px;
}

.page-header p {
    color: #666;
    margin: 0;
}

.content-box {
    background: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    text-align: center;
}

.stat-card i {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.stat-card.primary i { color: #007bff; }
.stat-card.success i { color: #28a745; }
.stat-card.warning i { color: #ffc107; }
.stat-card.danger i { color: #dc3545; }

.stat-card h3 {
    font-size: 2rem;
    margin-bottom: 5px;
    color: #333;
}

.stat-card p {
    color: #666;
    margin: 0;
}

/* === TABLAS === */
.table-container {
    overflow-x: auto;
}

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

.table th,
.table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #e9ecef;
}

.table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #333;
}

.table tr:hover {
    background: #f8f9fa;
}

/* === FORMULARIOS === */
.form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.form-col {
    flex: 1;
}

.form-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 20px;
}

textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
    min-height: 100px;
}

select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 14px;
    background: white;
}

/* === MODALES === */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    border-radius: 10px;
    padding: 30px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #666;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .form-row {
        flex-direction: column;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* === UTILIDADES === */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mb-20 { margin-bottom: 20px; }
.mt-20 { margin-top: 20px; }
.hidden { display: none; }

.status-online {
    color: #28a745;
    font-weight: 600;
}

.status-offline {
    color: #dc3545;
    font-weight: 600;
}

.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background: #28a745;
    color: white;
}

.badge-danger {
    background: #dc3545;
    color: white;
}

.badge-warning {
    background: #ffc107;
    color: #333;
}