/* Chat de Biblioteca - Estilos Simplificados */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
    background: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

/* Navegación */
.navbar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    font-size: 24px;
    font-weight: bold;
    text-decoration: none;
    color: white;
}

.user-info {
    display: flex;
    gap: 20px;
    align-items: center;
}

.user-info a {
    color: white;
    text-decoration: none;
}

.logout-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 8px 16px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s;
}

.logout-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Contenedor */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.page-title {
    font-size: 28px;
    margin-bottom: 20px;
    color: #2c3e50;
}

/* Layout */
.chat-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.chat-panel {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    padding: 20px;
}

.chat-panel h2 {
    margin-bottom: 20px;
    color: #667eea;
    font-size: 20px;
}

/* Mensajes */
.messages-list {
    height: 400px;
    overflow-y: auto;
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 15px;
    background: #fafafa;
    margin-bottom: 15px;
}

.message {
    margin-bottom: 15px;
    padding: 12px;
    border-radius: 5px;
    background: white;
    border-left: 3px solid #667eea;
}

.message.respuesta {
    border-left-color: #27ae60;
    background: #f0f8f5;
}

.message-header {
    font-weight: bold;
    font-size: 14px;
    margin-bottom: 5px;
    color: #667eea;
}

.message.respuesta .message-header {
    color: #27ae60;
}

.message-time {
    font-size: 12px;
    color: #999;
    margin-top: 5px;
}

.message-content {
    font-size: 14px;
    line-height: 1.5;
}

/* Formularios */
.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    font-family: Arial, sans-serif;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

/* Botones */
.btn {
    padding: 12px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s;
    font-size: 14px;
    width: 100%;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
}

.btn-success {
    background: #27ae60;
    color: white;
}

.btn-success:hover {
    background: #229954;
}

.btn-secondary {
    background: #95a5a6;
    color: white;
}

.btn-secondary:hover {
    background: #7f8c8d;
}

/* Alertas */
.alert {
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
    font-size: 14px;
}

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

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

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Tarjetas */
.card {
    background: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.card-title {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #667eea;
}

/* Estadísticas */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.stat-box {
    background: white;
    border-radius: 8px;
    padding: 15px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.stat-number {
    font-size: 28px;
    font-weight: bold;
    color: #667eea;
}

.stat-label {
    font-size: 12px;
    color: #999;
    margin-top: 5px;
}

/* Notificación de sonido */
.notification-badge {
    display: inline-block;
    background: #e74c3c;
    color: white;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 12px;
    margin-left: 10px;
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Responsive */
@media (max-width: 768px) {
    .chat-container {
        grid-template-columns: 1fr;
    }
    
    .navbar-container {
        flex-direction: column;
        gap: 10px;
    }
    
    .user-info {
        width: 100%;
        justify-content: space-between;
    }
}

/* Utilidades */
.text-center {
    text-align: center;
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

.hidden {
    display: none !important;
}